89 lines
2.0 KiB
Markdown
89 lines
2.0 KiB
Markdown
> 本文作者：丁辉
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# 源码升级Gcc
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[Gcc源码文件下载](https://ftp.gnu.org/gnu/gcc/)
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1. 下载源码包
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```bash
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wget https://ftp.gnu.org/gnu/gcc/gcc-13.2.0/gcc-13.2.0.tar.gz
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```
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2. 解压源码包
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```bash
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tar -zxvf gcc-*.tar.gz && cd gcc-*
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```
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3. 配置编译项
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```bash
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./configure --prefix=/usr/local/gcc-13.2.0 --enable-checking=release --enable-languages=c,c++ --disable-multilib
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```
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> 遇到报错：configure: error: Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
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>
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> 解决方案：gcc 目录下执行如下命令即可解决
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>
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> ```bash
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> ./contrib/download_prerequisites
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> ```
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**构建参数**
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| 参数 | 含义 |
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| :-----------------------: | :---------------------------------------------------------: |
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| ./configure | 源代码安装软件时用于配置软件包 |
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| --enable-checking=release | 启用编译器的检查功能，但仅限于 release 模式 |
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| --enable-languages=c,c++ | 指定 GCC 将支持 C 和 C++ 编程语言 |
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| --disable-multilib | 禁用 GCC 的多架构支持，使其只会生成与主系统架构相匹配的代码 |
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4. 开始编译
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```bash
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make
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```
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> 同时运行
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>
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> ```bash
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> make -j 4
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> ```
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5. 编译安装
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```bash
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make install
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```
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6. 替换旧版本, 移除旧版本
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```bash
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mv /usr/bin/gcc /usr/bin/gcc.bak
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mv /usr/bin/g++ /usr/bin/g++.bak
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mv /usr/lib64/libstdc++.so.6 /usr/lib64/libstdc++.so.6.bak
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```
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7. 制作软连接
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```bash
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ln -s /usr/local/gcc-13.2.0/bin/gcc /usr/bin/gcc
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ln -s /usr/local/gcc-13.2.0/bin/g++ /usr/bin/g++
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ln -s /usr/local/gcc-13.2.0/lib64/libstdc++.so.6 /usr/lib64/libstdc++.so.6
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```
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8. 查看动态库
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```bash
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strings /usr/lib64/libstdc++.so.6 | grep CXXABI
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```
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9. 验证版本
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```bash
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gcc --version
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```
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