fail to install gcc on fresh rawhide-from-F15

[Jim Meyering]

Hi,

With some effort, and help from the guys on #anaconda at freenode (thanks!),
today I finally installed a bare-metal F15 system (part of the complication
was my existing partitions).

Then I updated it to rawhide.  However, the whole point of this was to
be able to compile and test some things, yet I cannot install gcc:

# yum install gcc
Loaded plugins: langpacks, presto, refresh-packagekit
Adding en_US to language list
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package gcc.x86_64 0:4.3.1-6 will be installed
--> Processing Dependency: cpp = 4.3.1-6 for package: gcc-4.3.1-6.x86_64
--> Processing Dependency: libgomp = 4.3.1-6 for package: gcc-4.3.1-6.x86_64
--> Processing Dependency: glibc-devel >= 2.2.90-12 for package: gcc-4.3.1-6.x86_64
--> Running transaction check
---> Package gcc.x86_64 0:4.3.1-6 will be installed
--> Processing Dependency: cpp = 4.3.1-6 for package: gcc-4.3.1-6.x86_64
---> Package glibc-devel.x86_64 0:2.8.90-11 will be installed
--> Processing Dependency: glibc = 2.8.90-11 for package: glibc-devel-2.8.90-11.x86_64
--> Processing Dependency: glibc-headers = 2.8.90-11 for package: glibc-devel-2.8.90-11.x86_64
---> Package libgomp.i386 0:4.3.1-6 will be installed
--> Running transaction check
---> Package gcc.x86_64 0:4.3.1-6 will be installed
--> Processing Dependency: cpp = 4.3.1-6 for package: gcc-4.3.1-6.x86_64
---> Package glibc.i686 0:2.8.90-11 will be installed
--> Processing Dependency: glibc-common = 2.8.90-11 for package: glibc-2.8.90-11.i686
---> Package glibc-headers.x86_64 0:2.8.90-11 will be installed
--> Finished Dependency Resolution
Error: Package: glibc-2.8.90-11.i686 (rawhide)
           Requires: glibc-common = 2.8.90-11
           Installed: glibc-common-2.13.90-4.x86_64 (@updates-testing/15)
               glibc-common = 2.13.90-4
           Available: glibc-common-2.8.90-11.x86_64 (rawhide)
               glibc-common = 2.8.90-11
Error: Package: gcc-4.3.1-6.x86_64 (rawhide)
           Requires: cpp = 4.3.1-6
           Installed: cpp-4.6.0-0.7.fc15.x86_64 (@rawhide)
               cpp = 4.6.0-0.7.fc15
           Available: cpp-4.3.1-6.x86_64 (rawhide)
               cpp = 4.3.1-6
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest
----------------------------

Unfortunately, neither of those "you could try ..." suggestions helps.
Can anyone suggest an easy way out, or should I just wait for a day or two?