Redhat AS4 安装gcc4.5.0

这两天尝试把AS4的内核升到2.6.33.3，所以需要将gcc升级到4.5.0，一下为参考网友以及实践的过程，记录下来备忘：

一，安装gcc4.5.0

1.下载

wget -c ftp://gcc.gnu.org/pub/gcc/infrastructure/mpc-0.8.1.tar.gz

wget -c ftp://gcc.gnu.org/pub/gcc/releases/gcc-4.5.0/gcc-4.5.0.tar.gz

wget -c ftp://gcc.gnu.org/pub/gcc/infrastructure/gmp-4.3.2.tar.bz2

wget -c ftp://gcc.gnu.org/pub/gcc/infrastructure/mpfr-2.4.2.tar.bz2

2.安装gmp

 # tar xjvf gmp-4.3.2.tar.bz2

 # cd gmp-4.3.2/

/gmp-4.3.2 # ./configure –prefix=/usr/local/gmp-4.3.2

/gmp-4.3.2 # make -j8

/gmp-4.3.2 # make install

3.安装mpfr

 # tar xjvf mpfr-2.4.2.tar.bz2

 # cd mpfr-2.4.2/

/mpfr-2.4.2 # ./configure –prefix=/usr/local/mpfr-2.4.2/ –with-gmp=/usr/local/gmp-4.3.2/

/mpfr-2.4.2 # make -j8

/mpfr-2.4.2 # make install

4.安装mpc

 # tar zxvf mpc-0.8.1.tar.gz

 # cd mpc-0.8.1/

/mpc-0.8.1 # ./configure –prefix=/usr/local/mpc-0.8.1 –with-gmp=/usr/local/gmp-4.3.2/ –with-mpfr=/usr/local/mpfr-2.4.2/

/mpc-0.8.1 # make -j8

/mpc-0.8.1 # make install

5.安装gcc 4.5.0

 # tar zxvf gcc-4.5.0.tar.gz

 # cd gcc-4.5.0/

/gcc-4.5.0 # ./configure –prefix=/usr/local/gcc-4.5.0 –enable-shared –enable-threads=posix –enable-languages=c,c++,objc,obj-c++ –with-gmp=/usr/local/gmp-4.3.2/ –with-mpfr=/usr/local/mpfr-2.4.2/ –with-mpc=/usr/local/mpc-0.8.1/

/gcc-4.5.0 # make -j8

/gcc-4.5.0 # make install

 

在编译gcc4.5.0的过程中遇到了如下从错误：

 

“checking for suffix of object files... configure: error: cannot compute suffix of object files: cannot compile

See `config.log' for more details.

make[2]: *** [configure-stage1-target-libgcc] Error 1

make[2]: Leaving directory `/tmp/gcc-4.3.2'

make[1]: *** [stage1-bubble] Error 2

make[1]: Leaving directory `/tmp/gcc-4.3.2'

make: *** [bootstrap] Error 2

从shell输出中（向上找）发现错误出在目录i686-pc-linux-gnu中从目录中的config.log中找到了错误的原因：“when loading shared libraries:libmpfr.so.1:cannot open shared object file: No such file or directory”.通过在网上查找，发现最后解决办法是在LD_LIBRARY_PATH中添加mpfr的库路径即可。