not able to use g++ from Fedora

Question

$ yum list | grep gcc
arm-gp2x-linux-gcc.i686            4.1.2-11.fc12          @fedora               
arm-gp2x-linux-gcc-c++.i686        4.1.2-11.fc12          @fedora               
gcc.i686                           4.4.3-4.fc12           @updates              
libgcc.i686                        4.4.3-4.fc12           @updates              
avr-gcc.i686                       4.4.2-2.fc12           updates               
avr-gcc-c++.i686                   4.4.2-2.fc12           updates               
compat-gcc-34.i686                 3.4.6-18               fedora                
compat-gcc-34-c++.i686             3.4.6-18               fedora                
compat-gcc-34-g77.i686             3.4.6-18               fedora                
compat-libgcc-296.i686             2.96-143               fedora                
gcc-c++.i686                       4.4.3-4.fc12           updates               
gcc-gfortran.i686                  4.4.3-4.fc12           updates               
gcc-gnat.i686                      4.4.3-4.fc12           updates               
gcc-java.i686                      4.4.3-4.fc12           updates               
gcc-objc.i686                      4.4.3-4.fc12           updates               
gcc-objc++.i686                    4.4.3-4.fc12           updates               
mingw32-gcc.i686                   4.4.1-3.fc12           fedora                
mingw32-gcc-c++.i686               4.4.1-3.fc12           fedora                
mingw32-gcc-gfortran.i686          4.4.1-3.fc12           fedora                
mingw32-gcc-objc.i686              4.4.1-3.fc12           fedora                
mingw32-gcc-objc++.i686            4.4.1-3.fc12           fedora                
msp430-gcc.i686                    3.2.3-3.20090210cvs.fc12
$

gcc works fine on .c files but fails on .cpp files saying:

$ gcc: error trying to exec 'cc1plus': execvp: No such file or directory

g++ fails saying:

$ g++: Command not found.

What should I do to be able to compile C++ files?

Answer 1

you need to install the gcc-c++ package:

yum install gcc-c++

Answer 2

gcc-c++ is not installed.

The yum list command shows all packages, not just the installed packages. The packages that are installed are prefixed with an ampersand or "@" sign. The packages that are not installed (but are available to be installed) lack the ampersand.

To see what is installed try the command rpm -qa. Or in your example rpm -qa | grep gcc

Oddly enough, if you didn't just grep for gcc, you would have been able to see the "Installed packages" and "Available packages" output lines between the two sets.