我对在CentOS 7上安装node-canvas感到困惑。
根据建议，我按照安装说明执行了以下命令：
sudo yum install cairo cairo-devel cairomm-devel libjpeg-turbo-devel pango pango-devel pangomm pangomm-devel giflib-devel
之后我尝试用
安装画布npm install canvas
我还尝试了其他选项，如-g和--save，但总是得到同样的错误：
> canvas@1.6.7 install /root/node_modules/canvas
> node-gyp rebuild
Package cairo was not found in the pkg-config search path.
Perhaps you should add the directory containing `cairo.pc'
to the PKG_CONFIG_PATH environment variable
No package 'cairo' found
gyp: Call to './util/has_lib.sh freetype' returned exit status 0 while
in binding.gggyp: Call to './util/has_lib.sh freetype' returned exit
status 0 while in binding.ggyp: Call to './util/has_lib.sh freetype'
returned exit status 0 while in binding.gyp. while trying to load
binding.gyp
gyp ERR! configure error
gyp ERR! stack Error: `gyp` failed with exit code: 1
gyp ERR! stack at ChildProcess.onCpExit
(/opt/bitnami/nodejs/lib/node_modules/npm/node_modules/node-
gyp/lib/configure.js:336:16)
gyp ERR! stack at emitTwo (events.js:125:13)
gyp ERR! stack at ChildProcess.emit (events.js:213:7)
gyp ERR! stack at Process.ChildProcess._handle.onexit
(internal/child_process.js:200:12)
gyp ERR! System Linux 3.10.0-693.2.2.el7.x86_64
gyp ERR! command "/opt/bitnami/nodejs/bin/.node.bin"
"/opt/bitnami/nodejs/lib/node_modules/npm/node_modules/node-
gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /root/node_modules/canvas
gyp ERR! node -v v8.5.0
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
npm WARN root@1.0.0 No description
npm WARN root@1.0.0 No repository field.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! canvas@1.6.7 install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the canvas@1.6.7 install script.
npm ERR! This is probably not a problem with npm. There is likely
additional logging output above.
我知道，这个问题已经发布了f.e. here
所以我尝试将cairo.pc添加到pkg-config搜索路径
[root@localhost ~]# find / -name cairo.pc
/usr/lib64/pkgconfig/cairo.pc
[root@localhost ~]# export PKG_CONFIG_PATH=/usr/lib64/pkgconfig
[root@localhost ~]# echo $PKG_CONFIG_PATH
/usr/lib64/pkgconfig
但我仍然遇到同样的错误
另外
pkg-config --atleast-version=1.12.2 cairo
echo $?
仍然会返回1.