我如何编译和运行GCC 4.9.x? [英] How do I compile and run GCC 4.9.x?
问题描述
我正在运行debian wheezy,并希望从GCC 4.7.2升级到GCC 4.9.0。
根据这些说明,我已安装 libgmp-dev
, libmpfr-dev
和 libmpc-dev
(我的软件包管理器分别给了我版本2:5.0.5 + dfsg-2,3.1.0-5和0.9-4)并运行以下代码来编译gcc(请注意,在我的情况下,它是4.9.0而不是4.6。 2):
tar xzf gcc-4.6.2.tar.gz
cd gcc-4.6.2
./contrib/download_prerequisites
cd ..
mkdir objdir
cd objdir
$ PWD /../ gcc-4.6.2 / configure --prefix = $ HOME / gcc-4.6.2
make
make install
现在我有一个 objdir
目录全是东西,但是g ++在哪里,我应该把这个目录放在哪里?
我猜我应该将它移动到 usr / local
并向我的 PATH
变量中添加内容,但我不知道究竟是什么,以及如何确保在我的旧gcc安装之前搜索它。
< (注意configure的
- 前缀
选项) $ PWD /../ gcc-4.9.0 / configure --prefix = $ HOME / gcc-4.9.0
make install
新的gcc将安装在 完整路径为 在objdir中不能单独使用 在建立GCC并安装到 I'm running debian wheezy and wanted to upgrade from GCC 4.7.2 to GCC 4.9.0. As per these instructions I installed I now have a I'm guessing I should move it to After doing these commands (note the the new gcc will be installed in Full path to There can be no separate After building the GCC and installing it in the 这篇关于我如何编译和运行GCC 4.9.x?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋! $ HOME / gcc-4.9.0
目录(应有子目录,如
bin
, lib
, share $ b
gcc
将会是 $ HOME / gcc-4.9.0 / bin / gcc
和 g ++
(它符号链接到 gcc
)将在这里: $ HOME / gcc-4.9.0 / bin / g ++
。
g ++
,因为 gcc
编译器驱动程序实现了几种语言的驱动程序;模式(C或C ++)是基于 argv [0]
(二进制名称,用于运行驱动程序: gcc
或 g ++
;这种模式也影响链接标志)和源文件扩展名( gcc
)同时接受C和C ++程序作为编译入目标文件的输入)。因此, g ++
可以通过 make install
生成为符号链接,并且存储生成的符号链接的地方是 $ prefix / bin
。
$ HOME / gcc-4.9后.0
目录下,您可以使用它;但默认的系统gcc将不会更新。分布式gcc的更新应该通过分布式工具来完成( apt
, dpkg-build
等)。 Wheezy的系统级gcc的当前预构建版本是 4.7.2 , 4.8.2 为杰西和Sid和 4.9-2 为实验。libgmp-dev
, libmpfr-dev
and libmpc-dev
(my package manager gave me versions 2:5.0.5+dfsg-2, 3.1.0-5 and 0.9-4 respectively) and ran the following to compile gcc (note that in my case it was 4.9.0 instead of 4.6.2):tar xzf gcc-4.6.2.tar.gz
cd gcc-4.6.2
./contrib/download_prerequisites
cd ..
mkdir objdir
cd objdir
$PWD/../gcc-4.6.2/configure --prefix=$HOME/gcc-4.6.2
make
make install
objdir
directory full of stuff, but where is g++, and where should I put this directory?usr/local
and add something to my PATH
variable, but I don't know what exactly, and how to make sure it is searched before my old gcc install.--prefix
option of configure)$PWD/../gcc-4.9.0/configure --prefix=$HOME/gcc-4.9.0
make install
$HOME/gcc-4.9.0
directory (there should be subdirectories like bin
, lib
, share
inside it).gcc
will be $HOME/gcc-4.9.0/bin/gcc
, and g++
(which is symlink to gcc
) will be here: $HOME/gcc-4.9.0/bin/g++
.g++
in objdir because gcc
compiler driver implements drivers for several languages; the mode (C or C++) is selected based on argv[0]
(name of binary, which was used to run driver: gcc
or g++
; this mode also affects linking flags) and on source file extensions (gcc
accepts both C and C++ programs as input for compilation into object files). So, g++
may be generated as symlink by make install
, and the place to store generated symlink is $prefix/bin
.$HOME/gcc-4.9.0
directory, you can use it; but default system gcc will be not updated. Update of distributive gcc should be done via distributive tools (apt
, dpkg-build
, etc). Current prebuild version of system-wide gcc for Wheezy is 4.7.2, 4.8.2 for Jessie and Sid and 4.9-2 for "Experimental".