linux下升級gcc支持C++11的方法

linux下升級gcc支持C++11的方法

 

  因爲工做主要平臺換到了linux上，而linux由於源上沒有比較新的gcc，只有4.4.7，而咱們用到了C++11， 只好本身升級了，升級方法也比較簡單，就是耗時間。

 

1.   下載gcc最新的源碼包 

wget ftp://ftp.mirrorservice.org/sites/sourceware.org/pub/gcc/releases/gcc-6.3.0/gcc-6.3.0.tar.bz2

 

2.   解壓縮 tar -jxf gcc-6.3.0.tar.bz2

3.   cd gcc-6.3.0

4.   修改./contrib/download_prerequisites腳本，將裏邊路徑改成 

http://www.mirrorservice.org/sites/sourceware.org/pub/gcc/infrastructure/，原來路徑下載源速度超級慢！運行download_prerequisites

腳本， ./contrib/download_prerequisites ，這個腳本會自動幫你下載所須要的依賴文件和庫

 

5.   運行 ./configure --prefix=/usr/local --enable-checking=release

--enable-languages=c,c++ --disable-multilib

 

6. make & make install

安裝完後有一段提示：

Libraries have been installed in:

   /usr/local/lib

 

If you ever happen to want to link against installed libraries

in a given directory, LIBDIR, you must either use libtool, and

specify the full pathname of the library, or use the `-LLIBDIR'

flag during linking and do at least one of the following:

   - add LIBDIR to the `LD_LIBRARY_PATH' environment variable

     during execution

   - add LIBDIR to the `LD_RUN_PATH' environment variable

     during linking

   - use the `-Wl,-rpath -Wl,LIBDIR' linker flag

   - have your system administrator add LIBDIR to `/etc/ld.so.conf'

 

See any operating system documentation about shared libraries for

more information, such as the ld(1) and ld.so(8) manual pages.

 

這裏編譯出來的程序運行爲提示：

$ ./ui/client/console/client

./ui/client/console/client: /usr/lib/libstdc++.so.6: version `CXXABI_1.3.9' not found (required by ./ui/client/console/client)

./ui/client/console/client: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by ./ui/client/console/client)

./ui/client/console/client: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.15' not found (required by ./ui/client/console/client)

 

解決方法：

$ LD_LIBRARY_PATH=/usr/local/lib/:$LD_LIBRARY_PATH  

$ export LD_LIBRARY_PATH