Dear All,
"yum update" has recently started failing on some of my SL50 and SL52
64-bit machines, with the following error message:

Error: Missing Dependency: gcc = 4.1.2 is needed by package apr-devel-1.2.7-11.el5_3.1.x86_64 (sl-security)

The machines appear to have gcc 4.1.1 installed.  I'm not clear why it
hasn't been automatically updated to 4.1.2, unless it is because the
computer thinks that version 4.1.1-52.el5.2 which I have is newer than
4.1.2-42.el5 which I should have (i.e. el5.2 vs el5 might be causing
confusion).  Neither "yum update gcc" nor "yum install gcc" works, so
how do I update gcc, or is there an alternative way around the problem
of apr-devel not updating?

None of my 32-bit SL52 machines have the problem, and all of them have
gcc version 4.1.2-42.el5 installed.
Eva.