From 4249c1249b00021c69250331a1398885393a3070 Mon Sep 17 00:00:00 2001
From: iProbe <iprobe@noreply.localhost>
Date: Thu, 7 Dec 2023 19:12:29 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=20'linux=E5=9F=BA=E7=A1=80/C?=
 =?UTF-8?q?entos7=E5=8D=87=E7=BA=A7gcc=E7=89=88=E6=9C=AC.md'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 linux基础/Centos7升级gcc版本.md | 48 +++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 linux基础/Centos7升级gcc版本.md

diff --git a/linux基础/Centos7升级gcc版本.md b/linux基础/Centos7升级gcc版本.md
new file mode 100644
index 0000000..c394f12
--- /dev/null
+++ b/linux基础/Centos7升级gcc版本.md
@@ -0,0 +1,48 @@
+**Red Hat Developer Toolset是RedHat开发工具包，可以多版本gcc共存，不影响原系统gcc环境**  
+## 安装Red Hat Developer Toolset
+```shell
+yum -y install centos-release-scl-rh
+```
+
+## 配置软件源
+```shell
+cat > CentOS-SCLo-scl-rh.repo << EOF
+[centos-sclo-rh]
+name=CentOS-7 - SCLo rh
+baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/7/sclo/$basearch/rh/
+gpgcheck=0
+enabled=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo
+EOF
+```
+
+## 生成缓存
+```shell
+yum makecache
+```
+
+## 安装相应版本
+```
+# devtoolset-3对应gcc4.x.x版本
+# devtoolset-4对应gcc5.x.x版本
+# devtoolset-6对应gcc6.x.x版本
+# devtoolset-7对应gcc7.x.x版本
+# devtoolset-8对应gcc8.x.x版本
+# devtoolset-9对应gcc9.x.x版本
+# devtoolset-10对应gcc10.x.x版本
+
+# 安装gcc-10
+yum -y install devtoolset-10
+```
+
+## 使gcc版本生效
+```shell
+# 以下两条命令效果相同
+# 只在当前shell中生效
+scl enable devtoolset-8 bash
+source /opt/rh/devtoolset-8/enable
+# 当前用户生效
+cat >> ~/.bash_profile << EOF
+source /opt/rh/devtoolset-8/enable
+EOF
+```
\ No newline at end of file