Redhat software installation problems

Redhat software installation problems-General Linux technology-Linux technology and application information, the following is a detailed description. This is an error that occurs when I make
G ++-Ilib-Iexternals/tinyxml-O2-DNDEBUG-Wall-std = c ++ 0x-c-o lib/check64bit. o lib/check64bit. cpp
G ++: error trying to exec 'cc1plus ': execvp: No such file or directory
Make: *** [lib/check64bit. o] Error 1


Some people say that g ++ needs to be installed.
1. first, g ++ and gcc exist in the system (gcc is copied from other places, I wonder if there is any impact ). G ++ and gcc versions should be consistent
2. the VM system cannot access the internet and cannot use functions such as yum install g ++ z.

Cat/proc/version
Linux version 2.6.18-194. el5 (mockbuild@x86-005.build.bos.redhat.com) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48) #1 SMP Tue Mar 16 21:52:39 EDT 2010

G ++-v/gcc-v display results
Using built-in specs.
Target: x86_64-redhat-linux
Configured :.. /configure -- prefix =/usr -- mandir =/usr/share/man -- infodir =/usr/share/info -- enable-shared -- enable-threads = posix -- enable-checking = release -- with-system-zlib -- enable-_ cxa_atexit -- disable-libunwind-exceptions -- enable-libgcj-multifile -- enable-versions ages = c, c ++, objc, obj-c ++, java, fortran, ada -- enable-java-awt = gtk -- disable-dssi -- disable-plugin -- with-java-home =/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre -- with-cpu = generic -- host = x86_64-redhat-linux
Thread model: posix
Gcc version 4.1.2 20080704 (Red Hat 4.1.2-54)

Thank you very much for your advice!