[LLVMdev] Building LLVM 2.5 on CENTOS 5.3

[Sarah Thompson]

Hi Folks,

I'm having some difficulties getting LLVM to build and work correctly  
on CENTOS 5.3. This is basically tracked down easily enough to CENTOS  
using GCC 4.1.x by default, which is known-buggy and known not to work  
with LLVM -- I was getting the well-known problem with aborts due to a  
non-empty symbol table. I have installed the gcc43 package via yum  
(I'm trying to stick to known packages because I need to roll this out  
at some point), which installs a gcc43 executable. Is there any  
configure magic available that will make it possible to get the LLVM  
build system to pick up gcc43 rather than the default gcc? Symlinking  
it didn't work, because I suspect it was still picking up the old  
libraries and headers. This is preferable to requiring users to  
significantly hack their environment.

Thanks,
Sarah Thompson
NASA Ames