在centos編譯C++代碼時，如果有如下提示：
Invoking: GCC C++ Compiler
g++ -std=c++1y -fpermissive -Iusr/local/include/zlib/include/ -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"Epoll.d" -MT"Epoll.o" -o "Epoll.o" "../Epoll.cpp"
/bin/sh: g++: command not found
make: *** [Epoll.o] Error 127
則需要檢查下g++的版本信息
通過"yum search "gcc-c++""命令檢查缺少組件的版本，畢竟不同系統需要安裝的版本是不同的。
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
============================================================================================================================ N/S matched: gcc-c++ ============================================================================================================================
avr-gcc-c++.x86_64 : Cross Compiling GNU GCC targeted at avr
gcc-c++.x86_64 : C++ support for GCC
gcc-c++-aarch64-linux-gnu.x86_64 : Cross-build binary utilities for aarch64-linux-gnu
gcc-c++-alpha-linux-gnu.x86_64 : Cross-build binary utilities for alpha-linux-gnu
gcc-c++-arm-linux-gnu.x86_64 : Cross-build binary utilities for arm-linux-gnu
gcc-c++-avr32-linux-gnu.x86_64 : Cross-build binary utilities for avr32-linux-gnu
gcc-c++-bfin-linux-gnu.x86_64 : Cross-build binary utilities for bfin-linux-gnu
gcc-c++-c6x-linux-gnu.x86_64 : Cross-build binary utilities for c6x-linux-gnu
gcc-c++-cris-linux-gnu.x86_64 : Cross-build binary utilities for cris-linux-gnu
gcc-c++-frv-linux-gnu.x86_64 : Cross-build binary utilities for frv-linux-gnu
gcc-c++-h8300-linux-gnu.x86_64 : Cross-build binary utilities for h8300-linux-gnu
gcc-c++-hppa-linux-gnu.x86_64 : Cross-build binary utilities for hppa-linux-gnu
gcc-c++-hppa64-linux-gnu.x86_64 : Cross-build binary utilities for hppa64-linux-gnu
gcc-c++-ia64-linux-gnu.x86_64 : Cross-build binary utilities for ia64-linux-gnu
gcc-c++-m32r-linux-gnu.x86_64 : Cross-build binary utilities for m32r-linux-gnu
gcc-c++-m68k-linux-gnu.x86_64 : Cross-build binary utilities for m68k-linux-gnu
gcc-c++-microblaze-linux-gnu.x86_64 : Cross-build binary utilities for microblaze-linux-gnu
gcc-c++-mips64-linux-gnu.x86_64 : Cross-build binary utilities for mips64-linux-gnu
gcc-c++-mn10300-linux-gnu.x86_64 : Cross-build binary utilities for mn10300-linux-gnu
gcc-c++-powerpc64-linux-gnu.x86_64 : Cross-build binary utilities for powerpc64-linux-gnu
gcc-c++-ppc64-linux-gnu.x86_64 : Cross-build binary utilities for ppc64-linux-gnu
gcc-c++-s390x-linux-gnu.x86_64 : Cross-build binary utilities for s390x-linux-gnu
gcc-c++-sh-linux-gnu.x86_64 : Cross-build binary utilities for sh-linux-gnu
gcc-c++-sh64-linux-gnu.x86_64 : Cross-build binary utilities for sh64-linux-gnu
gcc-c++-sparc64-linux-gnu.x86_64 : Cross-build binary utilities for sparc64-linux-gnu
gcc-c++-tile-linux-gnu.x86_64 : Cross-build binary utilities for tile-linux-gnu
gcc-c++-x86_64-linux-gnu.x86_64 : Cross-build binary utilities for x86_64-linux-gnu
gcc-c++-xtensa-linux-gnu.x86_64 : Cross-build binary utilities for xtensa-linux-gnu
按照提示安裝對應版本
[root@VM_32_16_centos code]# yum install "gcc-c++.x86_64" -y
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package gcc-c++.x86_64 0:4.8.5-39.el7 will be installed
--> Processing Dependency: libstdc++-devel = 4.8.5-39.el7 for package: gcc-c++-4.8.5-39.el7.x86_64
--> Processing Dependency: libstdc++ = 4.8.5-39.el7 for package: gcc-c++-4.8.5-39.el7.x86_64
--> Processing Dependency: gcc = 4.8.5-39.el7 for package: gcc-c++-4.8.5-39.el7.x86_64
--> Processing Dependency: libmpfr.so.4()(64bit) for package: gcc-c++-4.8.5-39.el7.x86_64
--> Processing Dependency: libmpc.so.3()(64bit) for package: gcc-c++-4.8.5-39.el7.x86_64
--> Running transaction check
---> Package gcc.x86_64 0:4.8.5-39.el7 will be installed
--> Processing Dependency: libgomp = 4.8.5-39.el7 for package: gcc-4.8.5-39.el7.x86_64
--> Processing Dependency: cpp = 4.8.5-39.el7 for package: gcc-4.8.5-39.el7.x86_64
--> Processing Dependency: libgcc >= 4.8.5-39.el7 for package: gcc-4.8.5-39.el7.x86_64
--> Processing Dependency: glibc-devel >= 2.2.90-12 for package: gcc-4.8.5-39.el7.x86_64
---> Package libmpc.x86_64 0:1.0.1-3.el7 will be installed
---> Package libstdc++.x86_64 0:4.8.5-28.el7 will be updated
---> Package libstdc++.x86_64 0:4.8.5-39.el7 will be an update
---> Package libstdc++-devel.x86_64 0:4.8.5-39.el7 will be installed
---> Package mpfr.x86_64 0:3.1.1-4.el7 will be installed
--> Running transaction check
---> Package cpp.x86_64 0:4.8.5-39.el7 will be installed
---> Package glibc-devel.x86_64 0:2.17-292.el7 will be installed
--> Processing Dependency: glibc-headers = 2.17-292.el7 for package: glibc-devel-2.17-292.el7.x86_64
--> Processing Dependency: glibc = 2.17-292.el7 for package: glibc-devel-2.17-292.el7.x86_64
--> Processing Dependency: glibc-headers for package: glibc-devel-2.17-292.el7.x86_64
---> Package libgcc.x86_64 0:4.8.5-28.el7 will be updated
---> Package libgcc.x86_64 0:4.8.5-39.el7 will be an update
---> Package libgomp.x86_64 0:4.8.5-28.el7 will be updated
---> Package libgomp.x86_64 0:4.8.5-39.el7 will be an update
--> Running transaction check
---> Package glibc.x86_64 0:2.17-222.el7 will be updated
--> Processing Dependency: glibc = 2.17-222.el7 for package: glibc-common-2.17-222.el7.x86_64
---> Package glibc.x86_64 0:2.17-292.el7 will be an update
---> Package glibc-headers.x86_64 0:2.17-292.el7 will be installed
--> Processing Dependency: kernel-headers >= 2.2.1 for package: glibc-headers-2.17-292.el7.x86_64
--> Processing Dependency: kernel-headers for package: glibc-headers-2.17-292.el7.x86_64
--> Running transaction check
---> Package glibc-common.x86_64 0:2.17-222.el7 will be updated
---> Package glibc-common.x86_64 0:2.17-292.el7 will be an update
---> Package kernel-headers.x86_64 0:3.10.0-1062.12.1.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==============================================================================================================================================================================================================================================================================
Package Arch Version Repository Size
==============================================================================================================================================================================================================================================================================
Installing:
gcc-c++ x86_64 4.8.5-39.el7 os 7.2 M
Installing for dependencies:
cpp x86_64 4.8.5-39.el7 os 5.9 M
gcc x86_64 4.8.5-39.el7 os 16 M
glibc-devel x86_64 2.17-292.el7 os 1.1 M
glibc-headers x86_64 2.17-292.el7 os 687 k
kernel-headers x86_64 3.10.0-1062.12.1.el7 updates 8.7 M
libmpc x86_64 1.0.1-3.el7 os 51 k
libstdc++-devel x86_64 4.8.5-39.el7 os 1.5 M
mpfr x86_64 3.1.1-4.el7 os 203 k
Updating for dependencies:
glibc x86_64 2.17-292.el7 os 3.6 M
glibc-common x86_64 2.17-292.el7 os 11 M
libgcc x86_64 4.8.5-39.el7 os 102 k
libgomp x86_64 4.8.5-39.el7 os 158 k
libstdc++ x86_64 4.8.5-39.el7 os 305 k
Transaction Summary
==============================================================================================================================================================================================================================================================================
Install 1 Package (+8 Dependent packages)
Upgrade ( 5 Dependent packages)
Total download size: 57 M
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
(1/14): cpp-4.8.5-39.el7.x86_64.rpm | 5.9 MB 00:00:00
(2/14): gcc-c++-4.8.5-39.el7.x86_64.rpm | 7.2 MB 00:00:00
(3/14): glibc-2.17-292.el7.x86_64.rpm | 3.6 MB 00:00:00
(4/14): glibc-common-2.17-292.el7.x86_64.rpm | 11 MB 00:00:00
(5/14): glibc-devel-2.17-292.el7.x86_64.rpm | 1.1 MB 00:00:00
(6/14): glibc-headers-2.17-292.el7.x86_64.rpm | 687 kB 00:00:00
(7/14): libgcc-4.8.5-39.el7.x86_64.rpm | 102 kB 00:00:00
(8/14): libgomp-4.8.5-39.el7.x86_64.rpm | 158 kB 00:00:00
(9/14): libmpc-1.0.1-3.el7.x86_64.rpm | 51 kB 00:00:00
(10/14): libstdc++-4.8.5-39.el7.x86_64.rpm | 305 kB 00:00:00
(11/14): libstdc++-devel-4.8.5-39.el7.x86_64.rpm | 1.5 MB 00:00:00
(12/14): mpfr-3.1.1-4.el7.x86_64.rpm | 203 kB 00:00:00
(13/14): kernel-headers-3.10.0-1062.12.1.el7.x86_64.rpm | 8.7 MB 00:00:00
(14/14): gcc-4.8.5-39.el7.x86_64.rpm | 16 MB 00:00:01
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 44 MB/s | 57 MB 00:00:01
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Updating : libgcc-4.8.5-39.el7.x86_64 1/19
/sbin/ldconfig: /lib64/libZThread-2.3.so.2 is not a symbolic link
Updating : glibc-2.17-292.el7.x86_64 2/19
warning: /etc/nsswitch.conf created as /etc/nsswitch.conf.rpmnew
/sbin/ldconfig: /lib64/libZThread-2.3.so.2 is not a symbolic link
Updating : glibc-common-2.17-292.el7.x86_64 3/19
Installing : mpfr-3.1.1-4.el7.x86_64 4/19
/sbin/ldconfig: /lib64/libZThread-2.3.so.2 is not a symbolic link
Installing : libmpc-1.0.1-3.el7.x86_64 5/19
/sbin/ldconfig: /lib64/libZThread-2.3.so.2 is not a symbolic link
Updating : libstdc++-4.8.5-39.el7.x86_64 6/19
/sbin/ldconfig: /lib64/libZThread-2.3.so.2 is not a symbolic link
Installing : libstdc++-devel-4.8.5-39.el7.x86_64 7/19
Installing : cpp-4.8.5-39.el7.x86_64 8/19
Updating : libgomp-4.8.5-39.el7.x86_64 9/19
/sbin/ldconfig: /lib64/libZThread-2.3.so.2 is not a symbolic link
Installing : kernel-headers-3.10.0-1062.12.1.el7.x86_64 10/19
Installing : glibc-headers-2.17-292.el7.x86_64 11/19
Installing : glibc-devel-2.17-292.el7.x86_64 12/19
Installing : gcc-4.8.5-39.el7.x86_64 13/19
Installing : gcc-c++-4.8.5-39.el7.x86_64 14/19
Cleanup : libstdc++-4.8.5-28.el7.x86_64 15/19
/sbin/ldconfig: /lib64/libZThread-2.3.so.2 is not a symbolic link
Cleanup : libgomp-4.8.5-28.el7.x86_64 16/19
/sbin/ldconfig: /lib64/libZThread-2.3.so.2 is not a symbolic link
Cleanup : glibc-2.17-222.el7.x86_64 17/19
/sbin/ldconfig: /lib64/libZThread-2.3.so.2 is not a symbolic link
Cleanup : glibc-common-2.17-222.el7.x86_64 18/19
Cleanup : libgcc-4.8.5-28.el7.x86_64 19/19
/sbin/ldconfig: /lib64/libZThread-2.3.so.2 is not a symbolic link
Verifying : glibc-devel-2.17-292.el7.x86_64 1/19
Verifying : glibc-common-2.17-292.el7.x86_64 2/19
Verifying : glibc-2.17-292.el7.x86_64 3/19
Verifying : gcc-c++-4.8.5-39.el7.x86_64 4/19
Verifying : mpfr-3.1.1-4.el7.x86_64 5/19
Verifying : kernel-headers-3.10.0-1062.12.1.el7.x86_64 6/19
Verifying : libgcc-4.8.5-39.el7.x86_64 7/19
Verifying : libgomp-4.8.5-39.el7.x86_64 8/19
Verifying : libmpc-1.0.1-3.el7.x86_64 9/19
Verifying : cpp-4.8.5-39.el7.x86_64 10/19
Verifying : gcc-4.8.5-39.el7.x86_64 11/19
Verifying : libstdc++-devel-4.8.5-39.el7.x86_64 12/19
Verifying : glibc-headers-2.17-292.el7.x86_64 13/19
Verifying : libstdc++-4.8.5-39.el7.x86_64 14/19
Verifying : glibc-common-2.17-222.el7.x86_64 15/19
Verifying : libgomp-4.8.5-28.el7.x86_64 16/19
Verifying : libstdc++-4.8.5-28.el7.x86_64 17/19
Verifying : glibc-2.17-222.el7.x86_64 18/19
Verifying : libgcc-4.8.5-28.el7.x86_64 19/19
Installed:
gcc-c++.x86_64 0:4.8.5-39.el7
Dependency Installed:
cpp.x86_64 0:4.8.5-39.el7 gcc.x86_64 0:4.8.5-39.el7 glibc-devel.x86_64 0:2.17-292.el7 glibc-headers.x86_64 0:2.17-292.el7 kernel-headers.x86_64 0:3.10.0-1062.12.1.el7 libmpc.x86_64 0:1.0.1-3.el7 libstdc++-devel.x86_64 0:4.8.5-39.el7 mpfr.x86_64 0:3.1.1-4.el7
Dependency Updated:
glibc.x86_64 0:2.17-292.el7 glibc-common.x86_64 0:2.17-292.el7 libgcc.x86_64 0:4.8.5-39.el7 libgomp.x86_64 0:4.8.5-39.el7 libstdc++.x86_64 0:4.8.5-39.el7
Complete!