* doc/install.texi (Specific, mips-sgi-irix5): Reflect working
IRIX 5 port.
Remove -save-temps workaround, handled automatically.
Require GNU binutils 2.15 for debugging.
Remove SGI make warnings since GNU make is now required.
(Specific, mips-sgi-irix6): Some markup fixes.
Describe MIPSpro C problems and workarounds.
Mention working O32 ABI support.
Recommend GNU as 2.15 for O32 with debugging.
Remove description of fixed structure pass/return bug.
From-SVN: r80772
