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node v16.0.0 の場合 yarn install が失敗する #31

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sanfrecce-osaka opened this issue May 6, 2021 · 2 comments
Closed

node v16.0.0 の場合 yarn install が失敗する #31

sanfrecce-osaka opened this issue May 6, 2021 · 2 comments

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@sanfrecce-osaka
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雑に issue を立ててみました 🙏

原因

2021/05/06 時点では、node-sass が node v16.0.0 をサポートしていない

c.f. sass/node-sass#3077

必要な対応

  • v15 系で yarn install を実行する
    • node node v15 系の最新である v15.14.0 で確認済

サポートされるまでどうするか?

  • サポートされるまで README に記載する?
  • .node-version or .nvmrc を fjord-books_app に追加する?

検証時の環境

  • OS: Big Sur(11.2.3)
  • CPU: 2 GHz Intel Core i5
  • nodebrew: v8.9.4
  • yarn: 1.22.4

v16.0.0 で yarn install した際のログ

% bin/yarn install
yarn install v1.22.4
[1/4] 🔍  Resolving packages...
[2/4] 🚚  Fetching packages...
[3/4] 🔗  Linking dependencies...
warning " > webpack-dev-server@3.11.0" has unmet peer dependency "webpack@^4.0.0 || ^5.0.0".
warning "webpack-dev-server > webpack-dev-middleware@3.7.2" has unmet peer dependency "webpack@^4.0.0".
[4/4] 🔨  Building fresh packages...
[-/3] ⠈ waiting...
[-/3] ⠁ waiting...
error /Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-sass: Command failed.
Exit code: 1
Command: node scripts/build.js
Arguments: 
Directory: /Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-sass
Output:
Building: /Users/foobarbaz/.nodebrew/node/v16.0.0/bin/node /Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-gyp/bin/node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
gyp info it worked if it ends with ok
gyp verb cli [
gyp verb cli   '/Users/foobarbaz/.nodebrew/node/v16.0.0/bin/node',
gyp verb cli   '/Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-gyp/bin/node-gyp.js',
gyp verb cli   'rebuild',
gyp verb cli   '--verbose',
gyp verb cli   '--libsass_ext=',
gyp verb cli   '--libsass_cflags=',
gyp verb cli   '--libsass_ldflags=',
gyp verb cli   '--libsass_library='
gyp verb cli ]
gyp info using node-gyp@3.8.0
gyp info using node@16.0.0 | darwin | x64
gyp verb command rebuild []
gyp verb command clean []
gyp verb clean removing "build" directory
gyp verb command configure []
gyp verb check python checking for Python executable "python2" in the PATH
gyp verb `which` succeeded python2 /usr/bin/python2
gyp verb check python version `/usr/bin/python2 -c "import sys; print "2.7.16
gyp verb check python version .%s.%s" % sys.version_info[:3];"` returned: %j
gyp verb get node dir no --target version specified, falling back to host node version: 16.0.0
gyp verb command install [ '16.0.0' ]
gyp verb install input version string "16.0.0"
gyp verb install installing version: 16.0.0
gyp verb install --ensure was passed, so won't reinstall if already installed
gyp verb install version not already installed, continuing with install 16.0.0
gyp verb ensuring nodedir is created /Users/foobarbaz/.node-gyp/16.0.0
gyp verb created nodedir /Users/foobarbaz/.node-gyp/16.0.0
gyp http GET https://nodejs.org/download/release/v16.0.0/node-v16.0.0-headers.tar.gz
gyp http 200 https://nodejs.org/download/release/v16.0.0/node-v16.0.0-headers.tar.gz
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gyp verb extracted file from tarball include/node/openssl/archs/BSD-x86_64/asm/include/progs.h
gyp verb extracted file from tarball include/node/openssl/archs/BSD-x86_64/asm_avx2/crypto/include/internal/bn_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/BSD-x86_64/asm_avx2/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/BSD-x86_64/asm_avx2/crypto/buildinf.h
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gyp verb extracted file from tarball include/node/openssl/archs/BSD-x86_64/no-asm/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/BSD-x86_64/no-asm/crypto/buildinf.h
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gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN32/asm/crypto/buildinf.h
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gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN32/asm/include/progs.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN32/asm_avx2/crypto/include/internal/bn_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN32/asm_avx2/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN32/asm_avx2/crypto/buildinf.h
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gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN32/asm_avx2/include/progs.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN32/no-asm/crypto/include/internal/bn_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN32/no-asm/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN32/no-asm/crypto/buildinf.h
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gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN64-ARM/no-asm/crypto/buildinf.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN64-ARM/no-asm/include/openssl/opensslconf.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN64-ARM/no-asm/include/progs.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN64A/asm/crypto/include/internal/bn_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN64A/asm/crypto/include/internal/dso_conf.h
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gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN64A/asm/include/progs.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN64A/asm_avx2/crypto/include/internal/bn_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN64A/asm_avx2/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN64A/asm_avx2/crypto/buildinf.h
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gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN64A/asm_avx2/include/progs.h
gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN64A/no-asm/crypto/include/internal/bn_conf.h
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gyp verb extracted file from tarball include/node/openssl/archs/VC-WIN64A/no-asm/crypto/buildinf.h
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gyp verb extracted file from tarball include/node/openssl/archs/aix-gcc/asm/include/progs.h
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gyp verb extracted file from tarball include/node/openssl/archs/aix-gcc/no-asm/include/progs.h
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gyp verb extracted file from tarball include/node/openssl/archs/darwin64-x86_64-cc/no-asm/crypto/include/internal/bn_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/darwin64-x86_64-cc/no-asm/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/darwin64-x86_64-cc/no-asm/crypto/buildinf.h
gyp verb extracted file from tarball include/node/openssl/archs/darwin64-x86_64-cc/no-asm/include/openssl/opensslconf.h
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gyp verb extracted file from tarball include/node/openssl/archs/linux-aarch64/asm/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux-aarch64/asm/crypto/buildinf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux-aarch64/asm/include/openssl/opensslconf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux-aarch64/asm/include/progs.h
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gyp verb extracted file from tarball include/node/openssl/archs/linux-aarch64/asm_avx2/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux-aarch64/asm_avx2/crypto/buildinf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux-aarch64/asm_avx2/include/openssl/opensslconf.h
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gyp verb extracted file from tarball include/node/openssl/archs/linux-aarch64/no-asm/crypto/buildinf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux-aarch64/no-asm/include/openssl/opensslconf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux-aarch64/no-asm/include/progs.h
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gyp verb extracted file from tarball include/node/openssl/archs/linux-armv4/asm/crypto/buildinf.h
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gyp verb extracted file from tarball include/node/openssl/archs/linux-armv4/asm_avx2/crypto/buildinf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux-armv4/asm_avx2/include/openssl/opensslconf.h
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gyp verb extracted file from tarball include/node/openssl/archs/linux-armv4/no-asm/crypto/buildinf.h
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gyp verb extracted file from tarball include/node/openssl/archs/linux-elf/asm/include/openssl/opensslconf.h
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gyp verb extracted file from tarball include/node/openssl/archs/linux-elf/asm_avx2/crypto/buildinf.h
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gyp verb extracted file from tarball include/node/openssl/archs/linux-ppc64/asm_avx2/crypto/buildinf.h
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gyp verb extracted file from tarball include/node/openssl/archs/darwin64-arm64-cc/asm_avx2/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/darwin64-arm64-cc/asm_avx2/crypto/buildinf.h
gyp verb extracted file from tarball include/node/openssl/archs/darwin64-arm64-cc/asm_avx2/include/openssl/opensslconf.h
gyp verb extracted file from tarball include/node/openssl/archs/darwin64-arm64-cc/asm_avx2/include/progs.h
gyp verb extracted file from tarball include/node/openssl/archs/darwin64-arm64-cc/no-asm/crypto/include/internal/bn_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/darwin64-arm64-cc/no-asm/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/darwin64-arm64-cc/no-asm/crypto/buildinf.h
gyp verb extracted file from tarball include/node/openssl/archs/darwin64-arm64-cc/no-asm/include/openssl/opensslconf.h
gyp verb extracted file from tarball include/node/openssl/archs/darwin64-arm64-cc/no-asm/include/progs.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/asm/crypto/include/internal/bn_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/asm/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/asm/crypto/buildinf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/asm/include/openssl/opensslconf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/asm/include/progs.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/asm_avx2/crypto/include/internal/bn_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/asm_avx2/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/asm_avx2/crypto/buildinf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/asm_avx2/include/openssl/opensslconf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/asm_avx2/include/progs.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/no-asm/crypto/include/internal/bn_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/no-asm/crypto/include/internal/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/no-asm/crypto/buildinf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/no-asm/include/openssl/opensslconf.h
gyp verb extracted file from tarball include/node/openssl/archs/linux64-mips64/no-asm/include/progs.h
gyp verb extracted file from tarball include/node/openssl/bn_conf.h
gyp verb extracted file from tarball include/node/openssl/dso_conf.h
gyp verb extracted file from tarball include/node/openssl/opensslconf.h
gyp verb extracted file from tarball include/node/openssl/dso_conf_asm.h
gyp verb extracted file from tarball include/node/openssl/bn_conf_asm.h
gyp verb extracted file from tarball include/node/openssl/bn_conf_no-asm.h
gyp verb extracted file from tarball include/node/openssl/dso_conf_no-asm.h
gyp verb extracted file from tarball include/node/openssl/opensslconf_asm.h
gyp verb extracted file from tarball include/node/openssl/opensslconf_no-asm.h
gyp verb extracted file from tarball include/node/zconf.h
gyp verb extracted file from tarball include/node/zlib.h
gyp verb tarball done parsing tarball
gyp verb check download content checksum, need to download `SHASUMS256.txt`... 
gyp verb checksum url https://nodejs.org/download/release/v16.0.0/SHASUMS256.txt
gyp http GET https://nodejs.org/download/release/v16.0.0/SHASUMS256.txt
gyp http 200 https://nodejs.org/download/release/v16.0.0/SHASUMS256.txt
gyp verb checksum data {"node-v16.0.0-aix-ppc64.tar.gz":"a6aee31e1fd8f55dc78007de2e4ac0d8e0dadd36beacfbabbaf9ab27a5f1f2f4","node-v16.0.0-darwin-arm64.tar.gz":"2d6d412abcf7c9375f19fde14086a6423e5bb9415eeca1ccad49638ffc476ea3","node-v16.0.0-darwin-arm64.tar.xz":"f8710a83738b4408da82fe81b7934373e4d2f84d40c8c1217676119fd3c77c7e","node-v16.0.0-darwin-x64.tar.gz":"b00457dd7da6cc00d0248dc57b4ddd01a71eed6009ddadd8c854678232091dfb","node-v16.0.0-darwin-x64.tar.xz":"66ecffa48b98cf1ca4d038b42b74f05bfc4d31681e2aa43a1ba50919ea23823b","node-v16.0.0-headers.tar.gz":"a4d665582e492bf013ce67b1fadb7db9cb8fd46e7d02a30f5e473373d452e377","node-v16.0.0-headers.tar.xz":"f5f178e75d78bd050d1a85ea56189bae6038d9d21d032e7889dbb22fa54da71d","node-v16.0.0-linux-arm64.tar.gz":"22e7d326b21195c4a0df92a7af7cfdf1743cd46fcc50e335e4086a1c1f2a9a13","node-v16.0.0-linux-arm64.tar.xz":"c6dc688de6373049f21cb1ca4f2ceefe80a5d711e301b8d54fd0a7c36a406b03","node-v16.0.0-linux-armv7l.tar.gz":"d4e2965224ca0667732836be249ec32ad899f7f01d932121daca76cbf38e75f1","node-v16.0.0-linux-armv7l.tar.xz":"1cb4bf1bac74f492f9182e44422e245cc2a971889e34f4e554b7c45eb080304c","node-v16.0.0-linux-ppc64le.tar.gz":"bc28902e8e1453531bb38001cf705dff2456cdf5b856a37dac2f2d3d771b02c1","node-v16.0.0-linux-ppc64le.tar.xz":"10bc1b3c18a05811a4497aa77b7951d963baecf033aa436358e28ba3cde28090","node-v16.0.0-linux-s390x.tar.gz":"3cdfafc6425aace2ab24a31dcac26564a494094c7521b50dc41f3c538b3700ec","node-v16.0.0-linux-s390x.tar.xz":"27a5a70178cd765c8b37aa49d18d05e7338c9b043b3195d4cbf28955ca3c9aa2","node-v16.0.0-linux-x64.tar.gz":"9268cdb3c71cec4f3dc3bef98994f310c3bef259fae8c68e3f1c605c5dfcbc58","node-v16.0.0-linux-x64.tar.xz":"1736446bb102e19942addce29f6a12b157ca71f38b9159d0446f51ba69618b8d","node-v16.0.0.pkg":"fe1d4f458a8b3e85c7c927c5a342d09407915b77ade5303fc98b0deeec89a3db","node-v16.0.0.tar.gz":"ef4928ed381dcb8f5eca9c521b3ffa4a384c75cc76656999e16f5d1c171d8e7b","node-v16.0.0.tar.xz":"47cb90111e8c3dc42dc538464789415354f0d933587fc89fff71f9bd816aaa02","node-v16.0.0-win-x64.7z":"8b78d362582746c5157b9e703bdd16c3da54c51efa12bed8fdf0e30e2bfdbce6","node-v16.0.0-win-x64.zip":"99c2b01afb8d966fc876ec30ac7dfdbd9da9b17a3daeda92c19ce657ab9bea61","node-v16.0.0-win-x86.7z":"04859c6d5a1d5054e57d1c1eb8f58a13d9d6e0ea079fe83d9b79d3a9aa401cc5","node-v16.0.0-win-x86.zip":"0600dffb5331b6f49e6ff4fa97770811746e0e2ecaf53de6deaafff277a644b4","node-v16.0.0-x64.msi":"9309bda5a68c353145acc2fa9fbe3ec98a0234b3946a9861997f60b4b89b83a7","node-v16.0.0-x86.msi":"6d7404b6e6f0c2a9cd396ce56eb68d2e0d2e5df434554345e075707bff7bc384","win-x64/node.exe":"f5d19a86afc817068ab7120919a4f96b43e60a7abe3282c3797a50f1cc723930","win-x64/node.lib":"32063b59c6df338e1d367eea513dc04abcc1768f4af5ba2bb764dfd1af41e6cc","win-x64/node_pdb.7z":"f369ce51bda686c451740c1805fa692554568dbc55992026bb17346f5ada6f7e","win-x64/node_pdb.zip":"aa12acfbc081eea9a5d625471ce93ebd711c9c6785a76d940b442b672a1d2025","win-x86/node.exe":"eab4525927aadf29b0e257a96a0c7afab1d42a52680622b6bf366690a6fc4d38","win-x86/node.lib":"3130ffd2b70c7b3b227f62d97090d3204bb64a319a7257821ff61eb86b645d61","win-x86/node_pdb.7z":"2d7feeb1a4bb7b2a7e0fe45dc39550d5913d96ff34f10f48d747f2e90b143745","win-x86/node_pdb.zip":"47a135fcf66526de3fae114a554ff810567fd837d9f764527e307acc076f1384"}
gyp verb download contents checksum {"node-v16.0.0-headers.tar.gz":"a4d665582e492bf013ce67b1fadb7db9cb8fd46e7d02a30f5e473373d452e377"}
gyp verb validating download checksum for node-v16.0.0-headers.tar.gz (a4d665582e492bf013ce67b1fadb7db9cb8fd46e7d02a30f5e473373d452e377 == a4d665582e492bf013ce67b1fadb7db9cb8fd46e7d02a30f5e473373d452e377)
gyp verb get node dir target node version installed: 16.0.0
gyp verb build dir attempting to create "build" dir: /Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-sass/build
gyp verb build dir "build" dir needed to be created? /Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-sass/build
gyp verb build/config.gypi creating config file
gyp verb build/config.gypi writing out config file: /Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-sass/build/config.gypi
(node:60086) [DEP0150] DeprecationWarning: Setting process.config is deprecated. In the future the property will be read-only.
(Use `node --trace-deprecation ...` to show where the warning was created)
gyp verb config.gypi checking for gypi file: /Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-sass/config.gypi
gyp verb common.gypi checking for gypi file: /Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-sass/common.gypi
gyp verb gyp gyp format was not specified; forcing "make"
gyp info spawn /usr/bin/python2
gyp info spawn args [
gyp info spawn args   '/Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-gyp/gyp/gyp_main.py',
gyp info spawn args   'binding.gyp',
gyp info spawn args   '-f',
gyp info spawn args   'make',
gyp info spawn args   '-I',
gyp info spawn args   '/Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-sass/build/config.gypi',
gyp info spawn args   '-I',
gyp info spawn args   '/Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-gyp/addon.gypi',
gyp info spawn args   '-I',
gyp info spawn args   '/Users/foobarbaz/.node-gyp/16.0.0/include/node/common.gypi',
gyp info spawn args   '-Dlibrary=shared_library',
gyp info spawn args   '-Dvisibility=default',
gyp info spawn args   '-Dnode_root_dir=/Users/foobarbaz/.node-gyp/16.0.0',
gyp info spawn args   '-Dnode_gyp_dir=/Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-gyp',
gyp info spawn args   '-Dnode_lib_file=/Users/foobarbaz/.node-gyp/16.0.0/<(target_arch)/node.lib',
gyp info spawn args   '-Dmodule_root_dir=/Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-sass',
gyp info spawn args   '-Dnode_engine=v8',
gyp info spawn args   '--depth=.',
gyp info spawn args   '--no-parallel',
gyp info spawn args   '--generator-output',
gyp info spawn args   'build',
gyp info spawn args   '-Goutput_dir=.'
gyp info spawn args ]
gyp verb command build []
gyp verb build type Release
gyp verb architecture x64
gyp verb node dev dir /Users/foobarbaz/.node-gyp/16.0.0
gyp verb `which` succeeded for `make` /usr/bin/make
gyp info spawn make
gyp info spawn args [ 'V=1', 'BUILDTYPE=Release', '-C', 'build' ]
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/ast.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/ast.o ../src/libsass/src/ast.cpp
In file included from ../src/libsass/src/ast.cpp:2:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/ast_fwd_decl.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/ast_fwd_decl.o ../src/libsass/src/ast_fwd_decl.cpp
In file included from ../src/libsass/src/ast_fwd_decl.cpp:1:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/backtrace.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/backtrace.o ../src/libsass/src/backtrace.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/base64vlq.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/base64vlq.o ../src/libsass/src/base64vlq.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/bind.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/bind.o ../src/libsass/src/bind.cpp
In file included from ../src/libsass/src/bind.cpp:3:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  cc '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/cencode.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/cencode.o ../src/libsass/src/cencode.c
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/check_nesting.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/check_nesting.o ../src/libsass/src/check_nesting.cpp
In file included from ../src/libsass/src/check_nesting.cpp:4:
In file included from ../src/libsass/src/check_nesting.hpp:4:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/color_maps.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/color_maps.o ../src/libsass/src/color_maps.cpp
In file included from ../src/libsass/src/color_maps.cpp:2:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/constants.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/constants.o ../src/libsass/src/constants.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/context.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/context.o ../src/libsass/src/context.cpp
In file included from ../src/libsass/src/context.cpp:9:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/cssize.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/cssize.o ../src/libsass/src/cssize.cpp
In file included from ../src/libsass/src/cssize.cpp:6:
In file included from ../src/libsass/src/cssize.hpp:4:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/emitter.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/emitter.o ../src/libsass/src/emitter.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/environment.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/environment.o ../src/libsass/src/environment.cpp
In file included from ../src/libsass/src/environment.cpp:2:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/error_handling.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/error_handling.o ../src/libsass/src/error_handling.cpp
In file included from ../src/libsass/src/error_handling.cpp:2:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/eval.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/eval.o ../src/libsass/src/eval.cpp
In file included from ../src/libsass/src/eval.cpp:10:
In file included from ../src/libsass/src/eval.hpp:4:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/expand.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/expand.o ../src/libsass/src/expand.cpp
In file included from ../src/libsass/src/expand.cpp:5:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/extend.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/extend.o ../src/libsass/src/extend.cpp
In file included from ../src/libsass/src/extend.cpp:2:
In file included from ../src/libsass/src/extend.hpp:7:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/file.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/file.o ../src/libsass/src/file.cpp
In file included from ../src/libsass/src/file.cpp:23:
In file included from ../src/libsass/src/sass_functions.hpp:6:
In file included from ../src/libsass/src/functions.hpp:4:
In file included from ../src/libsass/src/listize.hpp:7:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/functions.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/functions.o ../src/libsass/src/functions.cpp
In file included from ../src/libsass/src/functions.cpp:2:
In file included from ../src/libsass/src/functions.hpp:4:
In file included from ../src/libsass/src/listize.hpp:7:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/inspect.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/inspect.o ../src/libsass/src/inspect.cpp
In file included from ../src/libsass/src/inspect.cpp:9:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/json.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/json.o ../src/libsass/src/json.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/lexer.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/lexer.o ../src/libsass/src/lexer.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/listize.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/listize.o ../src/libsass/src/listize.cpp
In file included from ../src/libsass/src/listize.cpp:6:
In file included from ../src/libsass/src/listize.hpp:7:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/memory/SharedPtr.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/memory/SharedPtr.o ../src/libsass/src/memory/SharedPtr.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/node.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/node.o ../src/libsass/src/node.cpp
In file included from ../src/libsass/src/node.cpp:4:
In file included from ../src/libsass/src/node.hpp:7:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/operators.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/operators.o ../src/libsass/src/operators.cpp
In file included from ../src/libsass/src/operators.cpp:2:
In file included from ../src/libsass/src/operators.hpp:4:
In file included from ../src/libsass/src/values.hpp:4:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/output.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/output.o ../src/libsass/src/output.cpp
In file included from ../src/libsass/src/output.cpp:2:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/parser.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/parser.o ../src/libsass/src/parser.cpp
In file included from ../src/libsass/src/parser.cpp:2:
In file included from ../src/libsass/src/parser.hpp:7:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/plugins.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/plugins.o ../src/libsass/src/plugins.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/position.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/position.o ../src/libsass/src/position.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/prelexer.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/prelexer.o ../src/libsass/src/prelexer.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/remove_placeholders.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/remove_placeholders.o ../src/libsass/src/remove_placeholders.cpp
In file included from ../src/libsass/src/remove_placeholders.cpp:2:
In file included from ../src/libsass/src/remove_placeholders.hpp:6:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/sass.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/sass.o ../src/libsass/src/sass.cpp
In file included from ../src/libsass/src/sass.cpp:11:
In file included from ../src/libsass/src/sass_functions.hpp:6:
In file included from ../src/libsass/src/functions.hpp:4:
In file included from ../src/libsass/src/listize.hpp:7:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/sass2scss.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/sass2scss.o ../src/libsass/src/sass2scss.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/sass_context.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/sass_context.o ../src/libsass/src/sass_context.cpp
In file included from ../src/libsass/src/sass_context.cpp:9:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/sass_functions.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/sass_functions.o ../src/libsass/src/sass_functions.cpp
In file included from ../src/libsass/src/sass_functions.cpp:5:
In file included from ../src/libsass/src/values.hpp:4:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/sass_util.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/sass_util.o ../src/libsass/src/sass_util.cpp
In file included from ../src/libsass/src/sass_util.cpp:2:
In file included from ../src/libsass/src/node.hpp:7:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/sass_values.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/sass_values.o ../src/libsass/src/sass_values.cpp
In file included from ../src/libsass/src/sass_values.cpp:5:
In file included from ../src/libsass/src/eval.hpp:4:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/source_map.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/source_map.o ../src/libsass/src/source_map.cpp
In file included from ../src/libsass/src/source_map.cpp:7:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/subset_map.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/subset_map.o ../src/libsass/src/subset_map.cpp
In file included from ../src/libsass/src/subset_map.cpp:2:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/to_c.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/to_c.o ../src/libsass/src/to_c.cpp
In file included from ../src/libsass/src/to_c.cpp:3:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/to_value.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/to_value.o ../src/libsass/src/to_value.cpp
In file included from ../src/libsass/src/to_value.cpp:2:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/units.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/units.o ../src/libsass/src/units.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/utf8_string.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/utf8_string.o ../src/libsass/src/utf8_string.cpp
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/util.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/util.o ../src/libsass/src/util.cpp
In file included from ../src/libsass/src/util.cpp:3:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  c++ '-DNODE_GYP_MODULE_NAME=libsass' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DLIBSASS_VERSION="3.5.5"' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/libsass/src/libsass/src/values.o.d.raw   -c -o Release/obj.target/libsass/src/libsass/src/values.o ../src/libsass/src/values.cpp
In file included from ../src/libsass/src/values.cpp:3:
In file included from ../src/libsass/src/values.hpp:4:
../src/libsass/src/ast.hpp:1614:25: warning: loop variable 'numerator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto numerator : numerators)
                        ^
../src/libsass/src/ast.hpp:1614:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto numerator : numerators)
             ^~~~~~~~~~~~~~~~~~~~~~
                        &
../src/libsass/src/ast.hpp:1616:25: warning: loop variable 'denominator' of type 'const std::__1::basic_string<char>' creates a copy from type 'const std::__1::basic_string<char>' [-Wrange-loop-analysis]
        for (const auto denominator : denominators)
                        ^
../src/libsass/src/ast.hpp:1616:14: note: use reference type 'const std::__1::basic_string<char> &' to prevent copying
        for (const auto denominator : denominators)
             ^~~~~~~~~~~~~~~~~~~~~~~~
                        &
2 warnings generated.
  rm -f Release/sass.a && ./gyp-mac-tool filter-libtool libtool  -static -o Release/sass.a Release/obj.target/libsass/src/libsass/src/ast.o Release/obj.target/libsass/src/libsass/src/ast_fwd_decl.o Release/obj.target/libsass/src/libsass/src/backtrace.o Release/obj.target/libsass/src/libsass/src/base64vlq.o Release/obj.target/libsass/src/libsass/src/bind.o Release/obj.target/libsass/src/libsass/src/cencode.o Release/obj.target/libsass/src/libsass/src/check_nesting.o Release/obj.target/libsass/src/libsass/src/color_maps.o Release/obj.target/libsass/src/libsass/src/constants.o Release/obj.target/libsass/src/libsass/src/context.o Release/obj.target/libsass/src/libsass/src/cssize.o Release/obj.target/libsass/src/libsass/src/emitter.o Release/obj.target/libsass/src/libsass/src/environment.o Release/obj.target/libsass/src/libsass/src/error_handling.o Release/obj.target/libsass/src/libsass/src/eval.o Release/obj.target/libsass/src/libsass/src/expand.o Release/obj.target/libsass/src/libsass/src/extend.o Release/obj.target/libsass/src/libsass/src/file.o Release/obj.target/libsass/src/libsass/src/functions.o Release/obj.target/libsass/src/libsass/src/inspect.o Release/obj.target/libsass/src/libsass/src/json.o Release/obj.target/libsass/src/libsass/src/lexer.o Release/obj.target/libsass/src/libsass/src/listize.o Release/obj.target/libsass/src/libsass/src/memory/SharedPtr.o Release/obj.target/libsass/src/libsass/src/node.o Release/obj.target/libsass/src/libsass/src/operators.o Release/obj.target/libsass/src/libsass/src/output.o Release/obj.target/libsass/src/libsass/src/parser.o Release/obj.target/libsass/src/libsass/src/plugins.o Release/obj.target/libsass/src/libsass/src/position.o Release/obj.target/libsass/src/libsass/src/prelexer.o Release/obj.target/libsass/src/libsass/src/remove_placeholders.o Release/obj.target/libsass/src/libsass/src/sass.o Release/obj.target/libsass/src/libsass/src/sass2scss.o Release/obj.target/libsass/src/libsass/src/sass_context.o Release/obj.target/libsass/src/libsass/src/sass_functions.o Release/obj.target/libsass/src/libsass/src/sass_util.o Release/obj.target/libsass/src/libsass/src/sass_values.o Release/obj.target/libsass/src/libsass/src/source_map.o Release/obj.target/libsass/src/libsass/src/subset_map.o Release/obj.target/libsass/src/libsass/src/to_c.o Release/obj.target/libsass/src/libsass/src/to_value.o Release/obj.target/libsass/src/libsass/src/units.o Release/obj.target/libsass/src/libsass/src/utf8_string.o Release/obj.target/libsass/src/libsass/src/util.o Release/obj.target/libsass/src/libsass/src/values.o
  c++ '-DNODE_GYP_MODULE_NAME=binding' '-DUSING_UV_SHARED=1' '-DUSING_V8_SHARED=1' '-DV8_DEPRECATION_WARNINGS=1' '-DV8_DEPRECATION_WARNINGS' '-DV8_IMMINENT_DEPRECATION_WARNINGS' '-D_GLIBCXX_USE_CXX11_ABI=1' '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-DOPENSSL_NO_PINSHARED' '-DOPENSSL_THREADS' '-DBUILDING_NODE_EXTENSION' -I/Users/foobarbaz/.node-gyp/16.0.0/include/node -I/Users/foobarbaz/.node-gyp/16.0.0/src -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/config -I/Users/foobarbaz/.node-gyp/16.0.0/deps/openssl/openssl/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/uv/include -I/Users/foobarbaz/.node-gyp/16.0.0/deps/zlib -I/Users/foobarbaz/.node-gyp/16.0.0/deps/v8/include -I../../nan -I../src/libsass/include  -O3 -gdwarf-2 -mmacosx-version-min=10.7 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -std=c++11 -stdlib=libc++ -fno-rtti -fno-exceptions -fno-strict-aliasing -MMD -MF ./Release/.deps/Release/obj.target/binding/src/binding.o.d.raw   -c -o Release/obj.target/binding/src/binding.o ../src/binding.cpp
In file included from ../src/binding.cpp:1:
In file included from ../../nan/nan.h:56:
In file included from /Users/foobarbaz/.node-gyp/16.0.0/include/node/node.h:63:
In file included from /Users/foobarbaz/.node-gyp/16.0.0/include/node/v8.h:30:
/Users/foobarbaz/.node-gyp/16.0.0/include/node/v8-internal.h:452:38: error: no template named 'remove_cv_t' in namespace 'std'; did you mean 'remove_cv'?
            !std::is_same<Data, std::remove_cv_t<T>>::value>::Perform(data);
                                ~~~~~^~~~~~~~~~~
                                     remove_cv
/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/type_traits:697:50: note: 'remove_cv' declared here
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_cv
                                                 ^
1 error generated.
make: *** [Release/obj.target/binding/src/binding.o] Error 1
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-gyp/lib/build.js:262:23)
gyp ERR! stack     at ChildProcess.emit (node:events:365:28)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (node:internal/child_process:290:12)
gyp ERR! System Darwin 20.3.0
gyp ERR! command "/Users/foobarbaz/.nodebrew/node/v16.0.0/bin/node" "/Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd /Users/foobarbaz/projects/fjordllc/fjord-books_app/node_modules/node-sass
gyp ERR! node -v v16.0.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok 
@JunichiIto
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JunichiIto commented May 6, 2021

@sanfrecce-osaka issue報告ありがとうございます!
https://bootcamp.fjord.jp/questions/904#answer_2792 にて対応方針を確認中です。

@JunichiIto
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webpackerのバージョンを上げてnode-sassへの依存をなくしました。
これでNode 16でもエラーが起きないはず!
6f83c33

というわけで本件はcloseします〜。

ima1zumi added a commit to fjordllc/bootcamp that referenced this issue May 8, 2021
ima1zumi added a commit to fjordllc/bootcamp that referenced this issue May 8, 2021
harukus added a commit to fjordllc/bootcamp that referenced this issue Jul 15, 2021
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