# cat test.c
#include <stdio.h>

int main() {
        printf("ola");
}

# gcc -o test test.c
gcc: error trying to exec 'as': execvp: No such file or directory

# rpm -qa | grep gcc
gcc-c++-4.1.1-52.el5
gcc-4.1.1-52.el5
libgcc-4.1.1-52.el5

# rpm -qa | grep glibc
glibc-2.5-12
glibc-headers-2.5-12
glibc-common-2.5-12
glibc-devel-2.5-12

# rpm -qa | grep auto-*
#

uname -a
Linux excel.domain.com 2.6.18-8.el5 #1 SMP Thu Mar 15 19:57:35 EDT 2007 i686 i686 i386 GNU/Linux

# cat /etc/redhat-release
CentOS release 5 (Final)

# gcc -v
Using built-in specs.
Target: i386-redhat-linux
Configured with: ../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-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --enable-plugin --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre --with-cpu=generic --host=i386-redhat-linux
Thread model: posix
gcc version 4.1.1 20070105 (Red Hat 4.1.1-52)