RHEL 4.7 (64bit) 环境安装 GCC 4.6 测试记录（更新至gcc-4.6.1）

下载GCC 4.6 及其依赖源码包：

gcc-4.6.0.tar.gz

gmp-5.0.2.tar.bz2

mpfr-3.0.1.tar.bz2

mpc-0.9.tar.gz

具体下载地址可找Google问问看。

安装环境为一台装有 RHEL4.7 的PC服务器

### 主机配置信息检查

[root@Linux bin]# cat /etc/issue

Red Hat Enterprise Linux AS release 4 (Nahant Update 7)

Kernel r on an m

[root@Linux bin]# cat /proc/version

Linux version 2.6.9-78.ELsmp (brewbuilder@ls20-bc2-14.build.redhat.com) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-10)) #1 SMP Wed Jul 9 15:46:26 EDT 2008

[root@Linux bin]# uname -r

2.6.9-78.ELsmp

[root@Linux bin]# grep "model name" /proc/cpuinfo

model name : Intel(R) Xeon(R) CPU E5504 @ 2.00GHz

[root@Linux bin]# grep MemTotal /proc/meminfo

MemTotal: 16410740 kB

[root@Linux bin]# getconf LONG_BIT

### End Of 主机配置信息检查

cd ../gcc-toolkit/

mkdir gmp-build

mv gmp-5.0.2.tar.bz2 gmp-build/

cd gmp-build/

tar -jxvf gmp-5.0.2.tar.bz2

cd gmp-5.0.2

./configure --prefix=/usr/local/gmp-5.0.2

make

make install

tar -jxvf mpfr-3.0.1.tar.bz2

cd mpfr-3.0.1

./configure --prefix=/usr/local/mpfr-3.0.1 --with-gmp=/usr/local/gmp-5.0.2

make

make install

tar -zxvf mpc-0.9.tar.gz

cd mpc-0.9

./configure --prefix=/usr/local/mpc-0.9 --with-gmp=/usr/local/gmp-5.0.2 --with-mpfr=/usr/local/mpfr-3.0.1

make

make install

tar -zxvf gcc-4.6.0.tar.gz

cd gcc-4.6.0

./configure --prefix=/usr/local/gcc-4.6.0 --enable-threads=posix --disable-checking --disable-multilib --enable-languages=c,c++ --with-gmp=/usr/local/gmp-

5.0.2 --with-mpfr=/usr/local/mpfr-3.0.1 --with-mpc=/usr/local/mpc-0.9

注意此处环境变量一定要配置好，否则下一步make操作到一半就要后悔了，俺中午吃饭前没配这个变量，直接敲了make就去吃饭了，回来发现出错了。

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/gmp-5.0.2/lib:/usr/local/mpfr-3.0.1/lib:/usr/local/mpc-0.9/lib/

echo $LD_LIBRARY_PATH

make

此处源码编译的时间约为1个小时（我是在服务器上编译的，你如果用小本本编译就得等等了）

make install

顺利完成安装后检查一下目标服务路径中的文件及程序版本号

cd /usr/local/gcc-4.6.0/bin

[root@Linux bin]# ll

总用量 7632

-rwxr-xr-x 4 root root 955060 5月 26 13:21 c++

-rwxr-xr-x 1 root root 952539 5月 26 13:21 cpp

-rwxr-xr-x 4 root root 955060 5月 26 13:21 g++

-rwxr-xr-x 3 root root 950644 5月 26 13:21 gcc

-rwxr-xr-x 1 root root 125137 5月 26 13:21 gcov

-rwxr-xr-x 4 root root 955060 5月 26 13:21 x86_64-unknown-linux-gnu-c++

-rwxr-xr-x 4 root root 955060 5月 26 13:21 x86_64-unknown-linux-gnu-g++

-rwxr-xr-x 3 root root 950644 5月 26 13:21 x86_64-unknown-linux-gnu-gcc

-rwxr-xr-x 3 root root 950644 5月 26 13:21 x86_64-unknown-linux-gnu-gcc-4.6.0

[root@Linux i686]# gcc -v

使用内建 specs。

COLLECT_GCC=gcc

COLLECT_LTO_WRAPPER=/usr/local/gcc-4.6.0/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper

目标：x86_64-unknown-linux-gnu

配置为：./configure --prefix=/usr/local/gcc-4.6.0 --enable-threads=posix --disable-checking --disable-multilib --enable-languages=c,c++ --with-

gmp=/usr/local/gmp-5.0.2 --with-mpfr=/usr/local/mpfr-3.0.1 --with-mpc=/usr/local/mpc-0.9

线程模型：posix

gcc 版本 4.6.0 (GCC)

[root@Linux i686]# g++ -v

使用内建 specs。

COLLECT_GCC=g++

COLLECT_LTO_WRAPPER=/usr/local/gcc-4.6.0/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper

目标：x86_64-unknown-linux-gnu

配置为：./configure --prefix=/usr/local/gcc-4.6.0 --enable-threads=posix --disable-checking --disable-multilib --enable-languages=c,c++ --with-

gmp=/usr/local/gmp-5.0.2 --with-mpfr=/usr/local/mpfr-3.0.1 --with-mpc=/usr/local/mpc-0.9

线程模型：posix

gcc 版本 4.6.0 (GCC)

环境变量配置（想换用GCC4.6为默认编译器就把这些变量配置到/etc/profile里面去）

export GCC46_HOME=/usr/local/gcc-4.6.0

export CPLUS_INCLUDE_PATH=$GCC46_HOME/include:$GCC46_HOME/include/c++/4.6.0

export LIBRARY_PATH=/usr/local/gmp-5.0.2/lib:/usr/local/mpfr-3.0.1/lib:/usr/local/mpc-0.9/lib:$GCC46_HOME/lib64:$GCC46_HOME/lib:$GCC46_HOME/lib/gcc/x86_64-

unknown-linux-gnu/4.6.0

export LD_LIBRARY_PATH=/usr/local/gmp-5.0.2/lib:/usr/local/mpfr-3.0.1/lib:/usr/local/mpc-0.9/lib:$GCC46_HOME/lib64:$GCC46_HOME/lib:

$GCC46_HOME/lib/gcc/x86_64-unknown-linux-gnu/4.6.0

export PATH=$GCC46_HOME/bin:$PATH

gcc 编译测试（一段自打印程序）：

[root@Linux cpp-sourcekit]# gcc -o testc testc.c

testc.c: 在函数‘main’中:

testc.c:1:9: 警告：隐式声明与内建函数‘printf’不兼容 [enabled by default]

testc.c:1:22: 警告：赋值时将指针赋给整数，未作类型转换 [enabled by default]

testc.c:1:1: 警告：传递‘printf’的第 1 个参数时将整数赋给指针，未作类型转换 [enabled by default]

testc.c:1:1: 附注：需要类型‘const char *’，但实参的类型为‘int’

[root@Linux cpp-sourcekit]# ./testc

main(a){printf(a,34,a="main(a){printf(a,34,a=%c%s%c,34);}",34);}[root@Linux cpp-sourcekit]

g++ 编译测试：

#include <iostream>

using namespace std;

int main(int argc, char** argv)

{

cout << "Yeah g++ 4.6!"<< endl;

cout << "Compiled by Michael Chen from Creaway Automation." << endl;

return 0;

}

[root@Linux cpp-sourcekit]# g++ -o test test.cpp

[root@Linux cpp-sourcekit]# ./test

Yeah g++ 4.6!

Compiled by Michael Chen from Creaway Automation.

OK, 到此顺利完成GCC4.6的安装和测试。

===========================

6月30日继续在上述环境基础之上，也就是在gcc4.6的环境中编译4.6.1的gcc源码包

将下载的gcc-4.6.1.tar.gz 源码包上传到配置好gcc-4.6.0的rhel4.7服务器，解压源码包：

tar -zxvf gcc-4.6.1.tar.gz

cd gcc-4.6.1

./configure --prefix=/usr/local/gcc-4.6.1 --enable-threads=posix --disable-checking --disable-multilib --enable-languages=c,c++ --with-gmp=/usr/local/gmp-5.0.2 --with-mpfr=/usr/local/mpfr-3.0.1 --with-mpc=/usr/local/mpc-0.9

make

---此次编译时间仍然是1小时多4分钟左右，感觉编译效率上相比之前版本的编译器没有任何提高。

make install

安装完成后，参照上次的配置修改/etc/profile文件：

vi /etc/profile

export GCC46_HOME=/usr/local/gcc-4.6.1
export CPLUS_INCLUDE_PATH=$GCC46_HOME/include:$GCC46_HOME/include/c++/4.6.1
export LIBRARY_PATH=/usr/local/gmp-5.0.2/lib:/usr/local/mpfr-3.0.1/lib:/usr/local/mpc-0.9/lib:$GCC46_HOME/lib64:$GCC46_HOME/lib:$GCC46_HOME/lib/gcc/x86_64-unknown-linux-gnu/4.6.1
export LD_LIBRARY_PATH=/usr/local/gmp-5.0.2/lib:/usr/local/mpfr-3.0.1/lib:/usr/local/mpc-0.9/lib:$GCC46_HOME/lib64:$GCC46_HOME/lib:$GCC46_HOME/lib/gcc/x86_64-unknown-linux-gnu/4.6.1

export PATH=$GCC46_HOME/bin:$PATH

exit

退出重登陆

logon

检查gcc版本号：

gcc -v

使用内建 specs。
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/local/gcc-4.6.1/libexec/gcc/x86_64-unknown-linux-gnu/4.6.1/lto-wrapper
目标：x86_64-unknown-linux-gnu
配置为：./configure --prefix=/usr/local/gcc-4.6.1 --enable-threads=posix --disable-checking --disable-multilib --enable-languages=c,c++ --with-gmp=/usr/local/gmp-5.0.2 --with-mpfr=/usr/local/mpfr-3.0.1 --with-mpc=/usr/local/mpc-0.9
线程模型：posix
gcc 版本 4.6.1 (GCC)

编译测试代码：

#include <iostream>
using namespace std;
int main(int argc, char** argv)
{
        char hostname[256];
        gethostname(hostname, sizeof(hostname));
        cout << hostname << endl;
        cout << "Yeah g++ version: "<< __VERSION__ <<endl;
        cout << "源文件: "<< __FILE__ << endl;
        cout << "编译日期: "<< __DATE__ << endl;
        cout << "编译时间: "<< __TIME__ << endl;
        cout << "Compiled by Michael Chen from "<< endl << "Creaway Automation Engineering Co., Ltd. " << endl;
        return 0;
}

[root@gcc gcc]# g++ -o test test.cpp
[root@gcc gcc]# ./test
gcc
Yeah g++ version: 4.6.1
源文件: test.cpp
编译日期: Jun 30 2011
编译时间: 12:16:38
Compiled by Michael Chen from 
Creaway Automation Engineering Co., Ltd.

RHEL 4.7 (64bit) 环境安装 GCC 4.6 测试记录 （更新至gcc-4.6.1）

RHEL 4.7 (64bit) 环境安装 GCC 4.6 测试记录（更新至gcc-4.6.1）