ld section merging on aix

[Douglas B Rupp]

Configuration target is powerpc-ibm-aix5.2.0.0

I'm working on adding Dwarf2 support on AIX.
After spending a few weeks fiddling with the native linker, I've 
switched to Gnu ld.

.debug_* sections of the same name aren't getting merged in the 
executable. I'm hoping someone on the list can point me where to look in 
the code for fixing this problem/adding this feature. I don't really 
know COFF at all well, coming from an Elf and VMS object format background.

--Douglas B Rupp