Description of problem:

# yum install gcc 
gcc-4.6.0-6.fc15.i686 requires libgomp = 4.6.0-6.fc15
glibc-headers-2.13.90-9.i686 requires glibc = 2.13.90-9

# yum install libgomp
  :
Package matching libgomp-4.6.0-6.fc15.i686 already installed. Checking for update.
Nothing to do. 

# yum install glibc
  :
Package matching glibc-2.13.90-9.i386 already installed. Checking for update.
Nothing to do. 

Version-Release number of selected component (if applicable):

# uname -r
2.6.38.6-26.rc1.fc15.i686

# cat /etc/redhat-release
Fedora releas 15 (Lovelock)

How reproducible:
Every time

Steps to Reproduce:
1. yum install gcc
2.
3.
  
Actual results:

Dependency inconsistencies.

Expected results:
Install gcc. 

Additional info: