cd gcc-6.3.0./contrib/download_PRerequisitesmkdir buildcd build../configure --prefix=/opt/gcc-6.3 --disable-multilib --with-system-zlib --enable-languages=c,c++make -j4make install
安装完成的信息：
Libraries have been installed in: /opt/gcc-6.3/lib/../lib64If you ever happen to want to link against installed librariesin a given directory, LIBDIR, you must either use libtool, andspecify 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 formore information, such as the ld(1) and ld.so(8) manual pages.
配置链接库
cd /etc/ld.so.conf.dtouch gcc-6.3.0.confadd "/opt/gcc-6.3/lib/../lib64"
