我们知道,关于 GCC 在 CentOS 下通过 yum 安装默认版本号,CentOS 5 是 4.1.2;CentOS 6 是 4.4.7;CentOS 7 是 4.8.3。很多时候在编译安装软件都需要高版本的 GCC,否则就会报错。那么如何升级 GCC 的版本呢?
首先要确认升级到的 GCC 版本号。目前 GCC 的最新版已经到了 9.1(2019-05-03),而 CentOS 7 则依然使用其 4.8,所以基于兼容性考虑,可以选择升级到 4.8.5。GCC 官网:https://gcc.gnu.org。
需要注意,编译安装 GCC 内存不小于 1GB,Swap 不小于 1GB,硬盘最低不小于 10GB,否则极有可能会中途报错退出。编译安装完后,目录 gcc-4.8.5 将会有 5GB 之多。
1. 下载源码
wget ftp://ftp.gnu.org/gnu/gcc/gcc-4.8.5/gcc-4.8.5.tar.gz
2. 下载依赖包
编译安装 GCC 需要依赖 mpc,mpfr,gmp,isl 包。前四个包是 GNU 软件,使用 GCC 源码里自带脚本(./contrib/download_prerequisites)可以轻松下载;对于下载不成功的,需要我们手动去下载。
$ tar zxf gcc-4.8.5.tar.gz
$ cd gcc-4.8.5
$ ./contrib/download_prerequisites
--2019-06-06 16:18:09-- ftp://gcc.gnu.org/pub/gcc/infrastructure/mpfr-2.4.2.tar.bz2
=> “mpfr-2.4.2.tar.bz2”
Resolving gcc.gnu.org... 209.132.180.131
Connecting to gcc.gnu.org|209.132.180.131|:21... connected.
Logging in as anonymous ... Logged in!
==> SYST ... done. ==> PWD ... done.
==> TYPE I ... done. ==> CWD (1) /pub/gcc/infrastructure ... done.
==> SIZE mpfr-2.4.2.tar.bz2 ... 1077886
==> PASV ... done. ==> RETR mpfr-2.4.2.tar.bz2 ... done.
Length: 1077886 (1.0M) (unauthoritative)
100%[=================================================================================>] 1,077,886 249K/s in 4.2s
2019-06-06 16:18:19 (249 KB/s) - “mpfr-2.4.2.tar.bz2” saved [1077886]
--2019-06-06 16:18:20-- ftp://gcc.gnu.org/pub/gcc/infrastructure/gmp-4.3.2.tar.bz2
=> “gmp-4.3.2.tar.bz2”
Resolving gcc.gnu.org... 209.132.180.131
Connecting to gcc.gnu.org|209.132.180.131|:21... connected.
Logging in as anonymous ... Logged in!
==> SYST ... done. ==> PWD ... done.
==> TYPE I ... done. ==> CWD (1) /pub/gcc/infrastructure ... done.
==> SIZE gmp-4.3.2.tar.bz2 ... 1897483
==> PASV ... done. ==> RETR gmp-4.3.2.tar.bz2 ... done.
Length: 1897483 (1.8M) (unauthoritative)
100%[=================================================================================>] 1,897,483 210K/s in 7.7s
2019-06-06 16:18:30 (239 KB/s) - “gmp-4.3.2.tar.bz2” saved [1897483]
--2019-06-06 16:18:31-- ftp://gcc.gnu.org/pub/gcc/infrastructure/mpc-0.8.1.tar.gz
=> “mpc-0.8.1.tar.gz”
Resolving gcc.gnu.org... 209.132.180.131
Connecting to gcc.gnu.org|209.132.180.131|:21... connected.
Logging in as anonymous ... Logged in!
==> SYST ... done. ==> PWD ... done.
==> TYPE I ... done. ==> CWD (1) /pub/gcc/infrastructure ... done.
==> SIZE mpc-0.8.1.tar.gz ... 544950
==> PASV ... done. ==> RETR mpc-0.8.1.tar.gz ... done.
Length: 544950 (532K) (unauthoritative)
100%[=================================================================================>] 544,950 286K/s in 1.9s
2019-06-06 16:18:35 (286 KB/s) - “mpc-0.8.1.tar.gz” saved [544950]
$ wget http://isl.gforge.inria.fr/isl-0.14.tar.gz
$ tar zvxf isl-0.14.tar.gz
$ ln -s lsl isl-0.14
在此脚本里可以看到依赖包的版本号依次是 mpc-0.8.1,mpfr-2.4.2,gmp-4.3.2;另外我们下载 isl-0.14。
在 GCC-7.3.0 中,所有的依赖包都可以通过 ./contrib/download_prerequisites 一键完成下载。
3. 编译安装
为了避免在编译过程中,受原来系统自定义的一堆环境影响,建议先 unset 这些环境设置:
unset LIBRARY_PATH CPATH C_INCLUDE_PATH PKG_CONFIG_PATH CPLUS_INCLUDE_PATH INCLUDE
完整编译安装步骤如下:
$ mkdir gcc-build-4.8.5
$ cd gcc-build-4.8.5
$ unset LIBRARY_PATH CPATH C_INCLUDE_PATH PKG_CONFIG_PATH CPLUS_INCLUDE_PATH INCLUDE
$ ../configure -enable-checking=release -enable-languages=c,c++ -disable-multilib --prefix=/Bioinfo/SoftWare/gcc-4.8.5
# 如果想升级 gfortran,切记加上fortran!!!
$ ../configure -enable-checking=release -enable-languages=c,c++,fortran -disable-multilib --prefix=/Bioinfo/SoftWare/gcc-4.8.5
$ make
$ make install
.....
----------------------------------------------------------------------
Libraries have been installed in:
/Bioinfo/SoftWare/gcc-4.8.5/lib/../lib64
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.
----------------------------------------------------------------------
......
注意:
- 如果想升级 gfortran,configure 时切记加上 fortran!!!
如果需要重新 configure 或在 make 中途出错需要退出,最好把当前目录下的所有东西都删除干净。可以执行下面指令清空 编译目录下的相关文件,包括 makefile:
make distclean
4. 配置环境变量
GCC 安装完成后,需要包新安装的 gcc 添加到 PATH
个人相应的 LD_LIBRARY_PATH
:
export PATH=/Bioinfo/SoftWare/gcc-4.8.5/bin:$PATH
export LD_LIBRARY_PATH=/Bioinfo/SoftWare/gcc-4.8.5/lib64:$LD_LIBRARY_PATH
如果不想把新装 GCC 添加到 ~/.bashrc 中的 PATH 和 LD_LIBRARY_PATH 让它永久起作用,但是在安装软件时又想使用新安装的高级版本的 GCC 来编译软件,可以:
- 在软件编译前先执行上面两个 export 语句,再执行后面的编译安装命令;
- 或者在软件编译安装时直接在编译参数中添加 gcc/g++ 和其动态库的路径就可以。
到这里新版本的 GCC 就已经安装完了,在下一篇文章中我们将会跟大家分享一下怎么使用新版本的 GCC 在 Linux 下源码编译安装最新版本的 R-3.6.0。
5. 参考资料
- 秋水逸冰,《在CentOS下编译安装GCC》,WorldPress 博客
- 佚名,《How can I understand these dreadful errors when building gcc-4.8.2?》,StackOverflow
- ljpwinxp,《Centos 6.9 编译安装gcc 4.8.5》,51CTO
- 代码日志,《c – 构建gcc-4.8.2时如何理解这些可怕的错误?》, 博客
- Benjamin Berhault, 《Build and Install the Last GCC on RHEL/CentOS 7》,Ben’s Jekyll Blog