dependecy problem

Jeg prøver at installere gcc, men jeg har nogle underlige dependency problemer:

yum install gcc
Setting up Install Process
Setting up repositories
Reading repository metadata in from local files
Parsing package install arguments
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package gcc.i386 0:4.0.2-8.fc4 set to be updated
--> Running transaction check
--> Processing Dependency: glibc-devel >= 2.2.90-12 for package: gcc
--> Processing Dependency: gcc = 4.0.0-8 for package: gcc-c++
--> Processing Dependency: cpp = 4.0.2-8.fc4 for package: gcc
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Package cpp.i386 0:4.0.2-8.fc4 set to be updated
---> Package glibc-devel.i386 0:2.3.6-3 set to be updated
---> Package gcc-c++.i386 0:4.0.2-8.fc4 set to be updated
--> Running transaction check
--> Processing Dependency: glibc = 2.3.6-3 for package: glibc-devel
--> Processing Dependency: glibc-headers = 2.3.6-3 for package: glibc-devel
--> Processing Dependency: libstdc++-devel = 4.0.2-8.fc4 for package: gcc-c++
--> Processing Dependency: glibc-headers for package: glibc-devel
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Package libstdc++-devel.i386 0:4.0.2-8.fc4 set to be updated
---> Package glibc.i686 0:2.3.6-3 set to be updated
---> Package glibc-headers.i386 0:2.3.6-3 set to be updated
--> Running transaction check
--> Processing Dependency: kernel-headers >= 2.2.1 for package: glibc-headers
--> Processing Dependency: kernel-headers for package: glibc-headers
--> Processing Conflict: glibc-common conflicts glibc > 2.3.5
--> Processing Dependency: glibc-common = 2.3.6-3 for package: glibc
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Package glibc-kernheaders.i386 0:2.4-9.1.94 set to be updated
---> Package glibc-common.i386 0:2.3.6-3 set to be updated
--> Running transaction check
--> Processing Dependency: glibc-common = 2.3.5-10.3 for package: glibc-dummy-fedora-core-4
--> Finished Dependency Resolution
Error: Missing Dependency: glibc-common = 2.3.5-10.3 is needed by package glibc-dummy-fedora-core-4
[root@s45 tmp]# rpm -Uvh http://afs.caspur.it/afs/italia/project/mirrors/fedora/updates/4/i386/glibc-common-2.3.5-10.3.i386.rpm
Retrieving http://afs.caspur.it/afs/italia/project/mirrors/fedora/updates/4/i386/glibc-common-2.3.5-10.3.i386.rpm
Preparing...                ########################################### [100%]
        package glibc-common-2.3.5-10.3 is already installed