编译通过，生成的时候提示“unistd.h“找不到，根据说明文件，删除后报错。

[gxdyxh]

D:\desktop\node-images-master>node-gyp configure
gyp info it worked if it ends with ok
gyp info using node-gyp@6.0.1
gyp info using node@10.16.0 | win32 | x64
gyp info find Python using Python version 2.7.17 found at "E:\tool\Python27\python.exe"
gyp info find VS using VS2019 (16.3.29418.71) found at:
gyp info find VS "d:\Microsoft Visual Studio\2019\Community"
gyp info find VS run with --verbose for detailed information
gyp info spawn E:\tool\Python27\python.exe
gyp info spawn args [ 'C:\Users\gqz\AppData\Roaming\npm\node_modules\node-gyp\gyp\gyp_main.py',
gyp info spawn args 'binding.gyp',
gyp info spawn args '-f',
gyp info spawn args 'msvs',
gyp info spawn args '-I',
gyp info spawn args 'D:\desktop\node-images-master\build\config.gypi',
gyp info spawn args '-I',
gyp info spawn args 'C:\Users\gqz\AppData\Roaming\npm\node_modules\node-gyp\addon.gypi',
gyp info spawn args '-I',
gyp info spawn args 'C:\Users\gqz\AppData\Local\node-gyp\Cache\10.16.0\include\node\common.gypi',
gyp info spawn args '-Dlibrary=shared_library',
gyp info spawn args '-Dvisibility=default',
gyp info spawn args '-Dnode_root_dir=C:\Users\gqz\AppData\Local\node-gyp\Cache\10.16.0',
gyp info spawn args '-Dnode_gyp_dir=C:\Users\gqz\AppData\Roaming\npm\node_modules\node-gyp',
gyp info spawn args '-Dnode_lib_file=C:\\Users\\gqz\\AppData\\Local\\node-gyp\\Cache\\10.16.0\\<(target_arch)\\node.lib',
gyp info spawn args '-Dmodule_root_dir=D:\desktop\node-images-master',
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 'D:\desktop\node-images-master\build',
gyp info spawn args '-Goutput_dir=.' ]
gyp info ok

编译通过

D:\desktop\node-images-master>node-gyp build
gyp info it worked if it ends with ok
gyp info using node-gyp@6.0.1
gyp info using node@10.16.0 | win32 | x64
gyp info spawn d:\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\MSBuild.exe
gyp info spawn args [ 'build/binding.sln',
gyp info spawn args '/clp:Verbosity=minimal',
gyp info spawn args '/nologo',
gyp info spawn args '/p:Configuration=Release;Platform=x64' ]
在此解决方案中一次生成一个项目。若要启用并行生成，请添加“-m”开关。
libpng.vcxproj -> D:\desktop\node-images-master\build\Release\libpng.lib
libjpeg-turbo.vcxproj -> D:\desktop\node-images-master\build\Release\libjpeg-turbo.lib
dgif_lib.c
gif_err.c
D:\desktop\node-images-master\gyp\third-party\giflib\lib\gif_hash.h(10,10): fatal error C1083: 无法打开包括文件: “unistd.h”: No such file or directory (编译源文件 ......\gyp\third-party\giflib\lib\gif_err.c) [D:\desktop\node-images-master\build\gy
p\gyp\giflib.vcxproj]
D:\desktop\node-images-master\gyp\third-party\giflib\lib\dgif_lib.c(15,10): fatal error C1083: 无法打开包括文件: “unistd.h”: No such file or directory [D:\desktop\node-images-master\build\gyp\gyp\giflib.vcxproj]
zlib.vcxproj -> D:\desktop\node-images-master\build\Release\zlib.lib
gyp ERR! build error
gyp ERR! stack Error: d:\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\MSBuild.exe failed with exit code: 1
gyp ERR! stack at ChildProcess.onExit (C:\Users\gqz\AppData\Roaming\npm\node_modules\node-gyp\lib\build.js:194:23)
gyp ERR! stack at ChildProcess.emit (events.js:198:13)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:248:12)
gyp ERR! System Windows_NT 10.0.18362
gyp ERR! command "E:\tool\nodejs\node.exe" "C:\Users\gqz\AppData\Roaming\npm\node_modules\node-gyp\bin\node-gyp.js" "build"
gyp ERR! cwd D:\desktop\node-images-master
gyp ERR! node -v v10.16.0
gyp ERR! node-gyp -v v6.0.1
gyp ERR! not ok

build 失败 提示“unistd.h”: No such file or directory

删除后 重新编译 生成

D:\desktop\node-images-master>node-gyp build
gyp info it worked if it ends with ok
gyp info using node-gyp@6.0.1
gyp info using node@10.16.0 | win32 | x64
gyp info spawn d:\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\MSBuild.exe
gyp info spawn args [ 'build/binding.sln',
gyp info spawn args '/clp:Verbosity=minimal',
gyp info spawn args '/nologo',
gyp info spawn args '/p:Configuration=Release;Platform=x64' ]
在此解决方案中一次生成一个项目。若要启用并行生成，请添加“-m”开关。
libpng.vcxproj -> D:\desktop\node-images-master\build\Release\libpng.lib
libjpeg-turbo.vcxproj -> D:\desktop\node-images-master\build\Release\libjpeg-turbo.lib
dgif_lib.c
gif_err.c
D:\desktop\node-images-master\gyp\third-party\giflib\lib\dgif_lib.c(383,23): warning C4018: “<”: 有符号/无符号不匹配 [D:\desktop\node-images-master\build\gyp\gyp\giflib.vcxproj]
giflib.vcxproj -> D:\desktop\node-images-master\build\Release\giflib.lib
zlib.vcxproj -> D:\desktop\node-images-master\build\Release\zlib.lib
Image.cc
D:\desktop\node-images-master\src\Image.cc(174,17): warning C4101: “status”: 未引用的局部变量 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(365,21): error C2131: 表达式的计算结果不是常数 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(365,21): message : 因读取超过生命周期的变量而失败 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(365,21): message : 请参见“argc”的用法 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(392,21): error C2131: 表达式的计算结果不是常数 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(392,21): message : 因读取超过生命周期的变量而失败 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(392,21): message : 请参见“argc”的用法 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(437,21): error C2131: 表达式的计算结果不是常数 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(437,21): message : 因读取超过生命周期的变量而失败 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(437,21): message : 请参见“argc”的用法 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(480,21): error C2131: 表达式的计算结果不是常数 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(480,21): message : 因读取超过生命周期的变量而失败 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(480,21): message : 请参见“argc”的用法 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(521,21): error C2131: 表达式的计算结果不是常数 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(521,21): message : 因读取超过生命周期的变量而失败 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(521,21): message : 请参见“argc”的用法 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(591,21): error C2131: 表达式的计算结果不是常数 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(591,21): message : 因读取超过生命周期的变量而失败 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(591,21): message : 请参见“argc”的用法 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(644,21): error C2131: 表达式的计算结果不是常数 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(644,21): message : 因读取超过生命周期的变量而失败 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(644,21): message : 请参见“argc”的用法 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(684,21): error C2131: 表达式的计算结果不是常数 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(684,21): message : 因读取超过生命周期的变量而失败 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(684,21): message : 请参见“argc”的用法 [D:\desktop\node-images-master\build\binding.vcxproj]
D:\desktop\node-images-master\src\Image.cc(855,9): warning C4146: 一元负运算符应用于无符号类型，结果仍为无符号类型 [D:\desktop\node-images-master\build\binding.vcxproj]
gyp ERR! build error
gyp ERR! stack Error: d:\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\MSBuild.exe failed with exit code: 1
gyp ERR! stack at ChildProcess.onExit (C:\Users\gqz\AppData\Roaming\npm\node_modules\node-gyp\lib\build.js:194:23)
gyp ERR! stack at ChildProcess.emit (events.js:198:13)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:248:12)
gyp ERR! System Windows_NT 10.0.18362
gyp ERR! command "E:\tool\nodejs\node.exe" "C:\Users\gqz\AppData\Roaming\npm\node_modules\node-gyp\bin\node-gyp.js" "build"
gyp ERR! cwd D:\desktop\node-images-master
gyp ERR! node -v v10.16.0
gyp ERR! node-gyp -v v6.0.1
gyp ERR! not ok

[newlukai]

The same here

gyp info it worked if it ends with ok
gyp info using node-gyp@6.0.1
gyp info using node@12.13.0 | win32 | x64
gyp info spawn C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\15.0\Bin\MSBuild.exe
gyp info spawn args [
gyp info spawn args   'build/binding.sln',
gyp info spawn args   '/clp:Verbosity=minimal',
gyp info spawn args   '/nologo',
gyp info spawn args   '/p:Configuration=Release;Platform=x64'
gyp info spawn args ]
Die Projekte in dieser Projektmappe werden nacheinander erstellt. Um eine parallele Erstellung zu ermöglichen, müssen Sie den Schalter "/m" hinzufügen.
  libpng.vcxproj -> C:\git\github\zhangyuanwei\node-images\build\Release\\libpng.lib
  libjpeg-turbo.vcxproj -> C:\git\github\zhangyuanwei\node-images\build\Release\\libjpeg-turbo.lib
  dgif_lib.c
  gif_err.c
c:\git\github\zhangyuanwei\node-images\gyp\third-party\giflib\lib\dgif_lib.c(15): fatal error C1083: Datei (Include) kann nicht geöffnet werden: "unistd.h": No such file or directory [C:\git\github\zhangyuanwei\node-images\build\gyp\gyp\giflib.vcxproj]
c:\git\github\zhangyuanwei\node-images\gyp\third-party\giflib\lib\gif_hash.h(10): fatal error C1083: Datei (Include) kann nicht geöffnet werden: "unistd.h": No such file or directory (Quelldatei wird kompiliert ..\..\..\gyp\third-party\giflib\lib\gif_err.c) [C:\git\github\zhangyuanwei\node-images\build\gyp\gyp\giflib.vcxproj]
  zlib.vcxproj -> C:\git\github\zhangyuanwei\node-images\build\Release\\zlib.lib
gyp ERR! build error
gyp ERR! stack Error: `C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\15.0\Bin\MSBuild.exe` failed with exit code: 1
gyp ERR! stack     at ChildProcess.onExit (C:\Users\user\AppData\Roaming\nvm\v12.13.0\node_modules\node-gyp\lib\build.js:194:23)
gyp ERR! stack     at ChildProcess.emit (events.js:210:5)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:272:12)
gyp ERR! System Windows_NT 10.0.16299
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\node-gyp\\bin\\node-gyp.js" "build"
gyp ERR! cwd C:\git\github\zhangyuanwei\node-images
gyp ERR! node -v v12.13.0
gyp ERR! node-gyp -v v6.0.1
gyp ERR! not ok

[kang888888]

我补了一个unistd.h文件，内容如下：
/** This file is part of the Mingw32 package.

• unistd.h maps (roughly) to io.h
  /
  #ifndef _UNISTD_H
  #define _UNISTD_H
  #include <io.h>
  #include <process.h>
  #endif / _UNISTD_H */

编译报错
C:\test\node-images>node-gyp build
gyp info it worked if it ends with ok
gyp info using node-gyp@5.1.1
gyp info using node@12.16.3 | win32 | x64
gyp info spawn C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\15.0\Bin\MSBuild.exe
gyp info spawn args [
gyp info spawn args 'build/binding.sln',
gyp info spawn args '/clp:Verbosity=minimal',
gyp info spawn args '/nologo',
gyp info spawn args '/p:Configuration=Release;Platform=x64'
gyp info spawn args ]
在此解决方案中一次生成一个项目。若要启用并行生成，请添加“/m”开关。
libpng.vcxproj -> C:\test\node-images\build\Release\libpng.lib
libjpeg-turbo.vcxproj -> C:\test\node-images\build\Release\libjpeg-turbo.lib
dgif_lib.c
gif_err.c
c:\test\node-images\gyp\third-party\giflib\lib\dgif_lib.c(383): warning C4018: “<”: 有符号/无符号不匹配 [C:\test\node-images\build\gyp\gyp\gif
lib.vcxproj]
giflib.vcxproj -> C:\test\node-images\build\Release\giflib.lib
zlib.vcxproj -> C:\test\node-images\build\Release\zlib.lib
正在创建库 C:\test\node-images\build\Release\binding.lib 和对象 C:\test\node-images\build\Release\binding.exp
giflib.lib(dgif_lib.obj) : error LNK2001: 无法解析的外部符号 reallocarray [C:\test\node-images\build\binding.vcxproj]
C:\test\node-images\build\Release\binding.node : fatal error LNK1120: 1 个无法解析的外部命令 [C:\test\node-images\build\binding.vcxproj]
gyp ERR! build error
gyp ERR! stack Error: C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\15.0\Bin\MSBuild.exe failed with exit code: 1
gyp ERR! stack at ChildProcess.onExit (C:\node\node-v12.16.3-win-x64\node_modules\node-gyp\lib\build.js:194:23)
gyp ERR! stack at ChildProcess.emit (events.js:310:20)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:275:12)
gyp ERR! System Windows_NT 10.0.18362
gyp ERR! command "C:\node\node-v12.16.3-win-x64\node.exe" "C:\node\node-v12.16.3-win-x64\node_modules\node-gyp\bin\node-gyp.js" "build"
gyp ERR! cwd C:\test\node-images
gyp ERR! node -v v12.16.3
gyp ERR! node-gyp -v v5.1.1
gyp ERR! not ok

请问有什么办法解决呢？