Linux使用make命令时遇到“make: g++: Command not found”，这个主要是没有安装gcc-c++.x86_64，如下所示
[root@localhost nethogs]# make
g++ -g -Wall -Wextra -c packet.cpp
make: g++: Command not found
make: *** [packet.o] Error 127
root@localhost nethogs]# yum search "gcc-c++"
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==================================== N/S Matched: gcc-c++ ====================================
gcc-c++.x86_64 : C++ support for GCC
Name and summary matches only, use "search all" for everything.
[root@localhost nethogs]# yum list "gcc-c++"
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media | 4.1 kB 00:00 ...
Available Packages
gcc-c++.x86_64 4.4.7-11.el6 media
[root@localhost nethogs]# yum install "gcc-c++.x86_64"
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Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package gcc-c++.x86_64 0:4.4.7-11.el6 will be installed
--> Processing Dependency: gcc = 4.4.7-11.el6 for package: gcc-c++-4.4.7-11.el6.x86_64
--> Processing Dependency: libstdc++-devel = 4.4.7-11.el6 for package: gcc-c++-4.4.7-11.el6.x86_64
--> Processing Dependency: libmpfr.so.1()(64bit) for package: gcc-c++-4.4.7-11.el6.x86_64
--> Running transaction check
---> Package gcc.x86_64 0:4.4.7-11.el6 will be installed
--> Processing Dependency: cpp = 4.4.7-11.el6 for package: gcc-4.4.7-11.el6.x86_64
--> Processing Dependency: cloog-ppl >= 0.15 for package: gcc-4.4.7-11.el6.x86_64
---> Package libstdc++-devel.x86_64 0:4.4.7-11.el6 will be installed
---> Package mpfr.x86_64 0:2.4.1-6.el6 will be installed
--> Running transaction check
---> Package cloog-ppl.x86_64 0:0.15.7-1.2.el6 will be installed
--> Processing Dependency: libppl.so.7()(64bit) for package: cloog-ppl-0.15.7-1.2.el6.x86_64
--> Processing Dependency: libppl_c.so.2()(64bit) for package: cloog-ppl-0.15.7-1.2.el6.x86_64
---> Package cpp.x86_64 0:4.4.7-11.el6 will be installed
--> Running transaction check
---> Package ppl.x86_64 0:0.10.2-11.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==============================================================================================
Package Arch Version Repository Size
==============================================================================================
Installing:
gcc-c++ x86_64 4.4.7-11.el6 media 4.7 M
Installing for dependencies:
cloog-ppl x86_64 0.15.7-1.2.el6 media 93 k
cpp x86_64 4.4.7-11.el6 media 3.7 M
gcc x86_64 4.4.7-11.el6 media 10 M
libstdc++-devel x86_64 4.4.7-11.el6 media 1.6 M
mpfr x86_64 2.4.1-6.el6 media 156 k
ppl x86_64 0.10.2-11.el6 media 1.3 M
Transaction Summary
==============================================================================================
Install 7 Package(s)
Total download size: 22 M
Installed size: 53 M
Is this ok [y/N]: y
Downloading Packages:
----------------------------------------------------------------------------------------------
Total 163 MB/s | 22 MB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : mpfr-2.4.1-6.el6.x86_64 1/7
Installing : cpp-4.4.7-11.el6.x86_64 2/7
Installing : ppl-0.10.2-11.el6.x86_64 3/7
Installing : cloog-ppl-0.15.7-1.2.el6.x86_64 4/7
Installing : gcc-4.4.7-11.el6.x86_64 5/7
Installing : libstdc++-devel-4.4.7-11.el6.x86_64 6/7
Installing : gcc-c++-4.4.7-11.el6.x86_64 7/7
Verifying : gcc-4.4.7-11.el6.x86_64 1/7
Verifying : gcc-c++-4.4.7-11.el6.x86_64 2/7
Verifying : mpfr-2.4.1-6.el6.x86_64 3/7
Verifying : libstdc++-devel-4.4.7-11.el6.x86_64 4/7
Verifying : cpp-4.4.7-11.el6.x86_64 5/7
Verifying : ppl-0.10.2-11.el6.x86_64 6/7
Verifying : cloog-ppl-0.15.7-1.2.el6.x86_64 7/7
Installed:
gcc-c++.x86_64 0:4.4.7-11.el6
Dependency Installed:
cloog-ppl.x86_64 0:0.15.7-1.2.el6 cpp.x86_64 0:4.4.7-11.el6 gcc.x86_64 0:4.4.7-11.el6
libstdc++-devel.x86_64 0:4.4.7-11.el6 mpfr.x86_64 0:2.4.1-6.el6 ppl.x86_64 0:0.10.2-11.el6
Complete!
原文：http://www.cnblogs.com/kerrycode/p/4748606.html
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