[main] Bump Emscripten to 2.0.34 (#97)

* Improve emscripten-releases-tags.txt to support mutliple aliases (#837) Also, improve reporting of version resolution. e.g.: ``` $ ./emsdk install sdk-latest Resolving SDK alias 'latest' to '2.0.23' Resolving SDK version '2.0.23' to 'sdk-releases-upstream-77b065ace39e6ab21446e13f92897f956c80476a-64bit' Installing SDK 'sdk-releases-upstream-77b065ace39e6ab21446e13f92897f956c80476a-64bit'.. ... ``` * bugfix: allow to install SDK binaries alone (#834) * 2.0.24 (#839) * Error out on attempt to activate a missing tools (#838) Previously if a tool (any part of an SDK) was not installed we would issue a warning and continue to active without returning non-zero. This meant doing `emsdk install 2.0.0 && emsdk activate latest` would appear to be work aside from the warning messages about latest not being installed. This is especially annoying since we dropped support for side by side SDK installations. The following sequence is no longer valid and we want to make that clear by erroring out: ``` $ emsdk install 2.0.1 $ emsdk install 2.0.2 $ emsdk activate 2.0.1 ``` Since 2.0.2 replaces 2.0.1 on the filesystem the active here could fail hard rather than just warning. * Consistent error messages (#840) * Point zsh and csh users to the correct startup script (#843) Fixes: emscripten-core/emscripten#14446 * Print sys.argv when link_wrapper.py is invoked incorrectly (#847) This should help debug cases when the link_wrapper is not invoked correctly. * Support linking with `-o filename` (#849) When linking with `-o filename` (such as in various CMake build checks), the parameter passed to the linker is a temporary file, and it is passed as a bare filename (i.e. relative path without a `'/'`). In such cases, `outdir` would have been the empty string, and the final `tar` command would fail (actually the call to `subprocess.check_call(…)` is what fails). * 2.0.25 (#850) * 2.0.26 (#858) * 2.0.26-lto (#861) * 2.0.27 (#868) Includes LTO and non-LTO, with non-LTO as the default * 2.0.28 (#871) * Use `.json` extension for emscripten-releases-tags.json. NFC (#870) * Add LTO build for 2.0.28 (#873) * Small fix for Bazel instructions. (#875) In the past the instructions were to copy `emscripten_toolchain` into the project dir, now it downloads emsdk as a package so the `bazelrc` part has to refer to `@emsdk`. * Version 2.0.29 (#878) * 2.0.29-lto (#881) * Fix release name for 2.0.29-lto (#885) Fixes #884 * [Bazel] fix llvm bin path (#888) * Add arm64 fastcomp releases to emsdk_manifest.json (#891) This was missing from emsdk_manifest.json and should alow older fastcomp SDKs to be install on M1 apple hardware (in emulation mode). Fixes: #889 * 2.0.30 (#893) * Fix error handling: untargz() in emsdk.py (#895) Make untargz() in emsdk.py return False if tar command failed. * Fix passing -DLLVM_ENABLE_PROJECTS directive to CMake - it does not want to see double quotes in the field passed to it. (#898) * Fix emscripten-version parsing (#902) See emscripten-core/emscripten#15144 * 2.0.31 (#906) * bazel: pass -g instead of -g4 for wasm_asan feature (#904) * Add embind example to Bazel docs (#910) * Add embind example to Bazel docs * address feedback * Run buildifier on bazel/ (#913) * Update build_bazel_rules_nodejs to fix closure compiles (#912) * Update build_bazel_rules_nodejs to fix closure compiles * Fix spacing in update_bazel_workspace.sh script * space * 2.0.32 (#915) * Improve flags in bazel example (#917) * Add back node.js 12.18.1 packages for Windows 7 support. (#877) * Update CMAKE_OSX_DEPLOYMENT_TARGET from 10.11 to 10.14 (#924) Apparently 10.11 is no longer good enough to run the latest version of binaryen. Specifically since binaryen switched to using std::variant it now fails to build with this set to 10.11. This is also the version used on the emscripten-releases CI which builds the emsdk binaries: https://chromium.googlesource.com/emscripten-releases/+/refs/heads/main/src/build.py#673 * Revert "Update CMAKE_OSX_DEPLOYMENT_TARGET from 10.11 to 10.14 (#924)" This reverts commit 99e5e02. * 2.0.33 (#922) I add to temporarily disable the test_binaryen_from_source test under macOS to work around: WebAssembly/binaryen#4299 * 2.0.34 (#925) * Bump EmscriptenVersion to 2.0.34 * Fix bad edit Co-authored-by: Sam Clegg <sbc@chromium.org> Co-authored-by: Yulong Wang <yulong.fs@gmail.com> Co-authored-by: Attila Oláh <attilaolah@gmail.com> Co-authored-by: Attila Oláh <atl@google.com> Co-authored-by: Derek Schuff <dschuff@chromium.org> Co-authored-by: Danny B <danila.bespalov@gmail.com> Co-authored-by: Brad Kotsopoulos <bkotsopoulos@snapchat.com> Co-authored-by: Matt Gucci <matt9ucci@gmail.com> Co-authored-by: juj <jujjyl@gmail.com> Co-authored-by: walkingeyerobot <mitch@thefoley.net> Co-authored-by: Kevin Lubick <kjlubick@users.noreply.github.com> Co-authored-by: Larry Ewing <lewing@microsoft.com>
dotnet · Jan 28, 2022 · b581f08 · b581f08
1 parent b2054b9
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diff --git a/bazel/BUILD b/bazel/BUILD
@@ -1,4 +1,4 @@
-package(default_visibility = ['//visibility:public'])
+package(default_visibility = ["//visibility:public"])
 
 config_setting(
     name = "linux",
@@ -41,4 +41,3 @@ alias(
         ":windows": "@emscripten_npm_win//:node_modules",
     }),
 )
-
diff --git a/bazel/README.md b/bazel/README.md
@@ -7,33 +7,26 @@ In `WORKSPACE` file, put:
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 http_archive(
     name = "emsdk",
-    strip_prefix = "emsdk-c1589b55641787d55d53e883852035beea9aec3f/bazel",
-    url = "https://github.com/emscripten-core/emsdk/archive/c1589b55641787d55d53e883852035beea9aec3f.tar.gz",
-    sha256 = "7a58a9996b113d3e0675df30b5f17e28aa47de2e684a844f05394fe2f6f12e8e",
+    sha256 = "d55e3c73fc4f8d1fecb7aabe548de86bdb55080fe6b12ce593d63b8bade54567",
+    strip_prefix = "emsdk-3891e7b04bf8cbb3bc62758e9c575ae096a9a518/bazel",
+    url = "https://github.com/emscripten-core/emsdk/archive/3891e7b04bf8cbb3bc62758e9c575ae096a9a518.tar.gz",
 )
 
 load("@emsdk//:deps.bzl", emsdk_deps = "deps")
 emsdk_deps()
 
 load("@emsdk//:emscripten_deps.bzl", emsdk_emscripten_deps = "emscripten_deps")
-emsdk_emscripten_deps()
+emsdk_emscripten_deps(emscripten_version = "2.0.31")
 ```
+The SHA1 hash in the above `strip_prefix` and `url` parameters correspond to the git revision of
+[emsdk 2.0.31](https://github.com/emscripten-core/emsdk/releases/tag/2.0.31). To get access to
+newer versions, you'll need to update those. To make use of older versions, change the
+parameter of `emsdk_emscripten_deps()`. Supported versions are listed in `revisions.bzl`
 
-## Building
-
-### Using --config=wasm
-
-Put the following lines into your `.bazelrc`:
-```
-build:wasm --crosstool_top=//emscripten_toolchain:everything
-build:wasm --cpu=wasm
-build:wasm --host_crosstool_top=@bazel_tools//tools/cpp:toolchain
-```
 
-Simply pass `--config=wasm` when building a normal `cc_binary`. The result of
-this build will be a tar archive containing any files produced by emscripten.
+## Building
 
-### Using wasm_cc_binary
+### Using wasm_cc_binary (preferred)
 First, write a new rule wrapping your `cc_binary`.
 
 ```
@@ -59,3 +52,19 @@ rules.
 `wasm_cc_binary` uses transition to use emscripten toolchain on `cc_target`
 and all of its dependencies, and does not require amending `.bazelrc`. This
 is the preferred way, since it also unpacks the resulting tarball.
+
+See `test_external/` for an example using [embind](https://emscripten.org/docs/porting/connecting_cpp_and_javascript/embind.html).
+
+### Using --config=wasm
+
+Put the following lines into your `.bazelrc`:
+```
+build:wasm --crosstool_top=@emsdk//emscripten_toolchain:everything
+build:wasm --cpu=wasm
+build:wasm --host_crosstool_top=@bazel_tools//tools/cpp:toolchain
+```
+
+Simply pass `--config=wasm` when building a normal `cc_binary`. The result of
+this build will be a tar archive containing any files produced by emscripten.
+See the [Bazel documentation](https://docs.bazel.build/versions/main/tutorial/cc-toolchain-config.html)
+for more details
diff --git a/bazel/WORKSPACE b/bazel/WORKSPACE
@@ -1,7 +1,9 @@
 workspace(name = "emsdk")
 
 load(":deps.bzl", "deps")
+
 deps()
 
 load(":emscripten_deps.bzl", "emscripten_deps")
+
 emscripten_deps()
diff --git a/bazel/deps.bzl b/bazel/deps.bzl
@@ -6,6 +6,6 @@ def deps():
     if "build_bazel_rules_nodejs" not in excludes:
         http_archive(
             name = "build_bazel_rules_nodejs",
-            sha256 = "0f2de53628e848c1691e5729b515022f5a77369c76a09fbe55611e12731c90e3",
-            urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/2.0.1/rules_nodejs-2.0.1.tar.gz"],
+            sha256 = "4501158976b9da216295ac65d872b1be51e3eeb805273e68c516d2eb36ae1fbb",
+            urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/4.4.1/rules_nodejs-4.4.1.tar.gz"],
         )
diff --git a/bazel/emscripten_deps.bzl b/bazel/emscripten_deps.bzl
@@ -3,13 +3,13 @@ load("@build_bazel_rules_nodejs//:index.bzl", "npm_install")
 load(":revisions.bzl", "EMSCRIPTEN_TAGS")
 
 def _parse_version(v):
-  return [int(u) for u in v.split(".")]
+    return [int(u) for u in v.split(".")]
 
 def emscripten_deps(emscripten_version = "latest"):
     version = emscripten_version
 
     if version == "latest":
-        version = reversed(sorted(EMSCRIPTEN_TAGS.keys(), key=_parse_version))[0]
+        version = reversed(sorted(EMSCRIPTEN_TAGS.keys(), key = _parse_version))[0]
 
     if version not in EMSCRIPTEN_TAGS.keys():
         error_msg = "Emscripten version {} not found.".format(version)

diff --git a/bazel/emscripten_toolchain/BUILD.bazel b/bazel/emscripten_toolchain/BUILD.bazel
@@ -9,9 +9,9 @@ filegroup(
         "emcc.sh",
         "emscripten_config",
         "env.sh",
-        "@nodejs//:node_files",
         "@emsdk//:binaries",
         "@emsdk//:node_modules",
+        "@nodejs//:node_files",
     ],
 )
 

diff --git a/bazel/emscripten_toolchain/crosstool.bzl b/bazel/emscripten_toolchain/crosstool.bzl
@@ -437,7 +437,6 @@ def _impl(ctx):
         # https://emscripten.org/docs/debugging/Sanitizers.html
         feature(name = "wasm_asan"),
         feature(name = "wasm_ubsan"),
-
         feature(
             name = "output_format_js",
             enabled = True,
@@ -518,7 +517,7 @@ def _impl(ctx):
         # Language Features
         flag_set(
             actions = all_cpp_compile_actions,
-            flags = ["-std=gnu++17", "-nostdinc", "-nostdinc++",],
+            flags = ["-std=gnu++17", "-nostdinc", "-nostdinc++"],
         ),
 
         # Emscripten-specific settings:
@@ -619,7 +618,7 @@ def _impl(ctx):
             actions = all_compile_actions +
                       all_link_actions,
             flags = [
-                "-g4",
+                "-g",
                 "-fsanitize=address",
                 "-O1",
                 "-DADDRESS_SANITIZER=1",
@@ -910,7 +909,8 @@ def _impl(ctx):
                 "-iwithsysroot" + "/include/c++/v1",
                 "-iwithsysroot" + "/include/compat",
                 "-iwithsysroot" + "/include",
-                "-isystem", emscripten_dir + "/lib/clang/13.0.0/include",
+                "-isystem",
+                emscripten_dir + "/lib/clang/14.0.0/include",
             ],
         ),
         # Inputs and outputs
@@ -1072,7 +1072,7 @@ def _impl(ctx):
         emscripten_dir + "/emscripten/cache/sysroot/include/c++/v1",
         emscripten_dir + "/emscripten/cache/sysroot/include/compat",
         emscripten_dir + "/emscripten/cache/sysroot/include",
-        emscripten_dir + "/lib/clang/13.0.0/include",
+        emscripten_dir + "/lib/clang/14.0.0/include",
     ]
 
     artifact_name_patterns = []
@@ -1103,7 +1103,7 @@ emscripten_cc_toolchain_config_rule = rule(
     implementation = _impl,
     attrs = {
         "cpu": attr.string(mandatory = True, values = ["asmjs", "wasm"]),
-        "em_config": attr.label(mandatory = True, allow_single_file=True),
+        "em_config": attr.label(mandatory = True, allow_single_file = True),
         "emscripten_binaries": attr.label(mandatory = True),
     },
     provides = [CcToolchainConfigInfo],

diff --git a/bazel/emscripten_toolchain/link_wrapper.py b/bazel/emscripten_toolchain/link_wrapper.py
@@ -22,7 +22,7 @@
 import sys
 
 # Only argument should be @path/to/parameter/file
-assert sys.argv[1][0] == '@'
+assert sys.argv[1][0] == '@', sys.argv
 param_filename = sys.argv[1][1:]
 param_file_args = [l.strip() for l in open(param_filename, 'r').readlines()]
 
@@ -51,7 +51,7 @@
 options = parser.parse_known_args(param_file_args)[0]
 output_file = options.o
 oformat = options.oformat
-outdir = os.path.dirname(output_file)
+outdir = os.path.normpath(os.path.dirname(output_file))
 base_name = os.path.basename(output_file)
 
 # The output file name is the name of the build rule that was built.
@@ -105,7 +105,7 @@
   # is the blaze output path; we want it to be just the filename.
 
   llvm_objcopy = os.path.join(
-      os.environ['EMSCRIPTEN'], 'llvm-bin/llvm-objcopy')
+      os.environ['EM_BIN_PATH'], 'bin/llvm-objcopy')
   # First, check to make sure the .wasm file has the header that needs to be
   # rewritten.
   rtn = subprocess.call([

diff --git a/bazel/revisions.bzl b/bazel/revisions.bzl
@@ -2,67 +2,133 @@
 # DO NOT MODIFY
 
 EMSCRIPTEN_TAGS = {
-   "2.0.23": struct(
+    "2.0.34": struct(
+        hash = "d8fc1b92dbc0ce8d740a7adb937c5137ba4755e0",
+        sha_linux = "a6304e3a52c172eb178c6f9817d74aa3ee411e97ef00bcae0884377799c49954",
+        sha_mac = "975ae11000100362baf19d161fec04d82e1f7c9fb7d43c43864ddd65a47f1780",
+        sha_win = "30f64dbc6425490157360439d40141feae359dbf586f59fa23185d7e009f3209",
+    ),
+    "2.0.33": struct(
+        hash = "cef8850d57278271766fb2163eebcb07354018e7",
+        sha_linux = "958a0f4b1533e877c1a5ed3c13cb8baabc80e791d45858c2c94ac62325ada953",
+        sha_mac = "8ecb248653d44c3748e23c089cb9f0e3d4eee7cda13fdec27ec0113b896e34c4",
+        sha_win = "6b6b2831f8b338488f787b4a8c34700277bf3988358dbb54426f017155603ac9",
+    ),
+    "2.0.32": struct(
+        hash = "74646397e3c5010824ad60d1de86c6bcbe334dff",
+        sha_linux = "236b3954e71d3bb30d347c655b9f47f2a091aa2e61046e1912c8da90152f4ca1",
+        sha_mac = "6a03267574534948e3b041e5d3e31bd757751ef17912eb6e90b96a47da03afb6",
+        sha_win = "2f8fbf0db097d67d0c364946faceec27c569c5c2d7b22068eef8db55645aba36",
+    ),
+    "2.0.31": struct(
+        hash = "597724ca3f6cd6e84bea73f1f519a3953b5c273d",
+        sha_linux = "ef70c7733aa0df41cb4c812f5a89bf6b2ed13ca8aa252872396c0be271156d9e",
+        sha_mac = "77e57c3e98758488ef676f8f58a85faa0bd65a1d326a91771ad83d7cb0e373ca",
+        sha_win = "541605b740afccd08a39f5ae815978f699f350d621a1b2dfba0763970b56aee4",
+    ),
+    "2.0.30": struct(
+        hash = "c69458f1bbf3ef5b8da4e934de210659cc9bca04",
+        sha_linux = "ee1c8270096a728966ae38af548047d1f64c18318e06ba75952e657136f02537",
+        sha_mac = "574a5819308eba6c8be6a780e26dff415a0e7178d3f44162dd8dca87eb40d4a7",
+        sha_win = "242d244f4f5f5af08e6e6ac9c143aebf1b7bb2a23fd2992350731e59acfee07c",
+    ),
+    "2.0.29": struct(
+        hash = "c2369dc425725fff86ba90a9007a4603ddf7941b",
+        sha_linux = "7df4a8f3e25820becadfa7f1fe0d78e764102ec3ee50c474ca1634ed90d48890",
+        sha_mac = "d998521ba95882a27792f0113ea2c972fbb891c240649f4c994f0260c0e1a213",
+        sha_win = "c64aa3f2af6503f6711b2322986a45784e00d7c7fe13ec3f5c4f740472d065a0",
+    ),
+    "2.0.28": struct(
+        hash = "866055ea639d64dfedc625d28ec981e47ce37168",
+        sha_linux = "7dca7704eb14e367bb67e9abc9eaf59e75f59b74e32422e04556de10897a9a86",
+        sha_mac = "370f76493e3805e2538290b698a381f04b6d78a77771e48fc0099cf89dad985f",
+        sha_win = "e913c50ea5f196d36971f7cf5b1cf9a9ca27ce0818aba56be3a66e31e95c0e5b",
+    ),
+    "2.0.27": struct(
+        hash = "1ac46e3b84955231ab4a4f4cbe0c7ac28c86b8cc",
+        sha_linux = "3e124e278de168cf22e03b93b2f14a65a86777e428cdaab7e5e1c2289eb41605",
+        sha_mac = "388262b9e1042ef9a3a1945d5a23dcd634c8042a225e8fdf80bcc2c1cb7e05cc",
+        sha_win = "762276a332432e717afb988310d21ae10e36facc1e05bfd77042a364fb43cc3c",
+    ),
+    "2.0.26": struct(
+        hash = "823d37b15d1ab61bc9ac0665ceef6951d3703842",
+        sha_linux = "996e16d368a99dd4dd12126acbcb8bea9a607b5257cc7b747c4afc2f036fd8cf",
+        sha_mac = "8b2d7e84cc449531e88034beb31da89a0b61ccaeaa1584ffb6da7842c6348fdc",
+        sha_win = "095e772764d7f8c0f8228bda4b8500ae43aac2303567da5cdc9f8623f70a5743",
+    ),
+    "2.0.25": struct(
+        hash = "f6f001b08fbb67935379cf13d17fd9bfdbaff791",
+        sha_linux = "06d8e2f3d4f4b35a57de9c15e62a559c941cfba1dd7ec02353d815904d912c3b",
+        sha_mac = "6541bf3a648aae7df84de424ff392dd1513ab5450203c84f72a6a03e321a301b",
+        sha_win = "267fbfa809ec0eb911c1962b1b9768675cb82228e694a5f9ef570232ee71db76",
+    ),
+    "2.0.24": struct(
+        hash = "6ab7fc5622a67e6111d07c4ba61c8d3c8fc33ed2",
+        sha_linux = "e5daa0e87f3afd2197e7975297cb0cd4c245edccb964ca5f1f32ee7d985bf440",
+        sha_mac = "e4b7f2a7b71d6ac4610ee7b14743570e0dfba3668dc6b4f984cbe7a135888527",
+        sha_win = "db2aad422a3ca2295be6101b0151eeee55dcea29ba1f31b4594c02ba46591cbe",
+    ),
+    "2.0.23": struct(
         hash = "77b065ace39e6ab21446e13f92897f956c80476a",
         sha_linux = "7713a9a5572d839aea9eaa84a7c4779d11c6c8818ee64a0f443b62081fae6d47",
         sha_mac = "b793087462d581e25c8c267fca9d30519619e3272480862a56cc316a32c7afab",
         sha_win = "b8885cbb41a39e4734861462e05ee58c7ff7562016a842bcee2603f229940e8b",
     ),
-   "2.0.22": struct(
+    "2.0.22": struct(
         hash = "6465a9acb820207acf7da44661a7de52d0a1ae3c",
         sha_linux = "c079781124e763c53c9fc73781fcee40296ce3314276836bc694f07bd331a859",
         sha_mac = "ab95574dfc685b0300e37bea36aba413045bbfa2ab06b93eceb881670489eec1",
         sha_win = "ba142e7e380596cba763e3a414de6511bcb86de48e4b48cf393b1ea449a24aaa",
     ),
-   "2.0.21": struct(
+    "2.0.21": struct(
         hash = "72f4ec97fbc7ec16c15ae68a75b0a257b2835160",
         sha_linux = "741264f33f96ba4b785ed0b133861ebdfefbaefab76ddcfe7bde6522829d6f70",
         sha_mac = "b07c0d65ee7e2799170c6f3b2aacebfe070c2e4975088bcd1b3a4140fecd8418",
         sha_win = "dc3cbf47aa4be52a92526f1790a013734ecbd407f7f36286ed0283c96355999a",
     ),
-   "2.0.20": struct(
+    "2.0.20": struct(
         hash = "e0c15cd14170f407a9eb27fcbad22931dc67feb7",
         sha_linux = "a196504fd1095836ca3961208338ff9e292be7729ea529bc19800aa7c966d34a",
         sha_mac = "6cdbf17ed61486b38ea79d3f31d74483e7388d1e7468518dccba3f24e0ddd4c4",
         sha_win = "4d22a32c219dbe18c55b635d014b9eaf7da60536171b7af37d9a8099fd33794b",
     ),
-   "2.0.19": struct(
+    "2.0.19": struct(
         hash = "9b9ff2dabfb4a7fbacbc004c0bead12a60f9d05c",
         sha_linux = "bd7c2a38ac88d219a1ab5003ddbf8fdc66a6ba55bc69f99077346edf2753b4ea",
         sha_mac = "6cc44029c9052855a55938eb6496b5659da4b1ce9cb34502b740af5993a94f93",
         sha_win = "a1fa8b1c387b9307f9b87c43dc83c0ff1bc04b9f29fbe4f39aff2dd946ca4b70",
     ),
-   "2.0.18": struct(
+    "2.0.18": struct(
         hash = "c2ac7520fad29a7937ed60ab6a95b08eb374c7ba",
         sha_linux = "e9f777de592f606b10104b2efe5179a7a8f44e3a9dffa1e3aaf73e05eb8893d7",
         sha_mac = "86b1dd62e424e3788bf132292a694a25ca9b0875d06f50d0f5d424593697452c",
         sha_win = "49ce07bda6be070251db44a08fcc05cae21ffdbd7522423a0c79bde635e87e28",
     ),
-   "2.0.17": struct(
+    "2.0.17": struct(
         hash = "f5c45e60392b82f603e3a8039c62db294fab02d2",
         sha_linux = "b40a4874057e4cace600f8ee9787dcbe236e3dc5b2fff5c2ecb0e867e426f99c",
         sha_mac = "081f61abf7d5ac0ec31aaffc5550013d4093ea4ea39520b7a32b7448d2a6ee70",
         sha_win = "45d06e597e6a1185a76200bd0481495e7298800a4805045d9cdbcce6311c91b2",
     ),
-   "2.0.16": struct(
+    "2.0.16": struct(
         hash = "80d9674f2fafa6b9346d735c42d5c52b8cc8aa8e",
         sha_linux = "e527638b224d9a30dc7e5fa4b9bd2eb2ab76ad306739ba8cacf5a5e333933a2a",
         sha_mac = "061020eb0e3ee0611dc5a0008ccc7778168a4f838d49ca41c0aad8c52c1a01c9",
         sha_win = "99364ed0388f928e0594f790662bf3a30c2894b0eff81797e1b64f62128561cb",
     ),
-   "2.0.15": struct(
+    "2.0.15": struct(
         hash = "89202930a98fe7f9ed59b574469a9471b0bda7dd",
         sha_linux = "7ff49fc63adf29970f6e7af1df445d7f554bdbbb2606db1cb5d3567ce69df1db",
         sha_mac = "e35cced1514ad0da40584f8dd6f76aabf847ce0fa82c6dc8dd9442fb74ed6d0d",
         sha_win = "31d5f8107c87833cea57edc57613bba4b36b16152772f744c5ad204594b4e666",
     ),
-   "2.0.14": struct(
+    "2.0.14": struct(
         hash = "fc5562126762ab26c4757147a3b4c24e85a7289e",
         sha_linux = "e466cd47ddd4bf0acd645412fdf08eda6d232484e48e5a2643e08062a7a4cf56",
         sha_mac = "1c554c08459b7025638ca4eddba0d35babe8c26b202a70a74e9442d577896211",
         sha_win = "428bc6094671937af96f26d803871fc5cd83d4d2b1c1df45fa6873a9bc5cac51",
     ),
-   "2.0.13": struct(
+    "2.0.13": struct(
         hash = "ce0e4a4d1cab395ee5082a60ebb4f3891a94b256",
         sha_linux = "8986ed886e111c661099c5147126b8a379a4040aab6a1f572fe01f0f9b99a343",
         sha_mac = "88c91332c8c76fed14ebf0edc9a08f586012f54f04ad61e5b1b6d02bf96bdeab",

diff --git a/bazel/test_external/.gitignore b/bazel/test_external/.gitignore
@@ -0,0 +1,4 @@
+bazel-bin
+bazel-out
+bazel-test_external
+bazel-testlogs
diff --git a/bazel/test_external/BUILD b/bazel/test_external/BUILD
@@ -10,3 +10,43 @@ wasm_cc_binary(
     cc_target = ":hello-world",
 )
 
+BASE_LINKOPTS = [
+    "--bind",  # Enable embind
+    "-sMODULARIZE",
+]
+
+RELEASE_OPTS = [
+    "--closure=1",  # Run the closure compiler
+]
+
+DEBUG_OPTS = [
+    "--closure=0",  # Do not use closure
+]
+
+config_setting(
+    name = "release_opts",
+    values = {"compilation_mode": "opt"},
+)
+
+config_setting(
+    name = "debug_opts",
+    values = {"compilation_mode": "dbg"},
+)
+
+cc_binary(
+    name = "hello-embind",
+    srcs = ["hello-embind.cc"],
+    linkopts = select({
+        ":debug_opts": BASE_LINKOPTS + DEBUG_OPTS,
+        ":release_opts": BASE_LINKOPTS + RELEASE_OPTS,
+        "//conditions:default": BASE_LINKOPTS + RELEASE_OPTS,
+    }),
+    # This target won't build successfully on its own because of missing emscripten
+    # headers etc. Therefore, we hide it from wildcards.
+    tags = ["manual"],
+)
+
+wasm_cc_binary(
+    name = "hello-embind-wasm",
+    cc_target = ":hello-embind",
+)