前一段时间我安装了 NodeJS (v0.10.31) 并在一个项目上工作没有问题，但最近我决定更新到 Node v5.0.0。
一切都很好，直到我决定使用 bcrypt 和 db-migrate。调用命令npm 安装将无法吐出一长串详细信息，但没有关于问题的明确信息：
$ sudo npm install
> [email protected] /cdn-cgi/l/email-protection install /home/cavpollo/intuitiva/cirio/cirio-id/node_modules/bcrypt
> node-gyp rebuild
make: Entering directory `/home/cavpollo/intuitiva/cirio/cirio-id/node_modules/bcrypt/build'
CXX(target) Release/obj.target/bcrypt_lib/src/blowfish.o
CXX(target) Release/obj.target/bcrypt_lib/src/bcrypt.o
CXX(target) Release/obj.target/bcrypt_lib/bcrypt_node/src.o
In file included from /home/cavpollo/.node-gyp/5.0.0/include/node/node.h:42:0,
from ../node_modules/nan/nan.h:24,
from ../src/bcrypt_node.cc:1:
/home/cavpollo/.node-gyp/5.0.0/include/node/v8.h:336:1: error: expected unqualified-id before ‘using’
/home/cavpollo/.node-gyp/5.0.0/include/node/v8.h:469:1: error: expected unqualified-id before ‘using’
/home/cavpollo/.node-gyp/5.0.0/include/node/v8.h:856:1: error: expected unqualified-id before ‘using’
In file included from ../node_modules/nan/nan.h:184:0,
from ../src/bcrypt_node.cc:1:
../node_modules/nan/nan_maybe_43_inl.h:13:1: error: expected unqualified-id before ‘using’
../node_modules/nan/nan_maybe_43_inl.h:16:1: error: expected unqualified-id before ‘using’
../node_modules/nan/nan_maybe_43_inl.h:19:12: error: ‘Maybe’ does not name a type
../node_modules/nan/nan_maybe_43_inl.h:24:12: error: ‘Maybe’ does not name a type
../node_modules/nan/nan_maybe_43_inl.h:31:1: error: ‘MaybeLocal’ does not name a type
...
[about 100 lines of log errors]
...
../node_modules/nan/nan_new.h:36:1: warning: control reaches end of non-void function [-Wreturn-type]
make: *** [Release/obj.target/bcrypt_lib/src/bcrypt_node.o] Error 1
make: Leaving directory `/home/cavpollo/intuitiva/cirio/cirio-id/node_modules/bcrypt/build'
gyp ERR! build error
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack at ChildProcess.onExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:270:23)
gyp ERR! stack at emitTwo (events.js:87:13)
gyp ERR! stack at ChildProcess.emit (events.js:172:7)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:200:12)
gyp ERR! System Linux 3.2.0-37-generic-pae
gyp ERR! command "/usr/local/bin/node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /home/cavpollo/intuitiva/cirio/cirio-id/node_modules/bcrypt
gyp ERR! node -v v5.0.0
gyp ERR! node-gyp -v v3.0.3
gyp ERR! not ok
npm ERR! Linux 3.2.0-37-generic-pae
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install"
npm ERR! node v5.0.0
npm ERR! npm v3.3.10
npm ERR! code ELIFECYCLE
npm ERR! [email protected] /cdn-cgi/l/email-protection install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] /cdn-cgi/l/email-protection install script 'node-gyp rebuild'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the bcrypt package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node-gyp rebuild
npm ERR! You can get their info via:
npm ERR! npm owner ls bcrypt
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR! /home/cavpollo/intuitiva/cirio/cirio-id/npm-debug.log
网上似乎没有任何关于该错误的信息，并且使用 NodeJS V4.X 也没有任何帮助。
我的设置：
- 乌班图12.04
- 节点 v5.0.0
- npm v3.3.10
经过大量谷歌搜索后，有人指出，对于 NodeJS V4（和更新版本），需要更新版本的 GCC（我认为是 4.8）。
我当前的版本是 4.6.3，如您所见：
$ gcc --version
gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
因此，所需要做的就是更新它，并且能够在以下链接的帮助下完成：
如何安装 Gcc 4.8 https://askubuntu.com/questions/271388/how-to-install-gcc-4-8
如何在 Ubuntu 14.04 上使用最新的 GCC 4.9 https://askubuntu.com/questions/466651/how-do-i-use-the-latest-gcc-4-9-on-ubuntu-14-04
我最终使用的命令序列是：
$ sudo apt-get install python-software-properties
$ sudo add-apt-repository ppa:ubuntu-toolchain-r/test
$ sudo apt-get update
$ sudo apt-get install gcc-4.8 g++-4.8
$ sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.8
再次检查GCC版本
$ gcc --version
gcc (Ubuntu 4.8.1-2ubuntu1~12.04) 4.8.1
之后我就可以调用“npm install”，事情就完美地进行了。
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