libffi 3.0.9 release candidate 2 on IRIX

[Frank Everdij <F dot P dot X dot Everdij at tudelft dot nl>]

Thanks for the RC2 build! The mips-sgi-irix6.5 RC2 entry is added.

The chmod a+x ./install-sh is indeed a small oops.

The cls_align_pointer.c fail comes from the symbol PRIuPTR not being
defined when using gcc -W -Wall as dejaGNU test compiler. Apparently the
missing symbol causes too many warnings, so dejaGNU issues a fail. The
test itself runs fine.
i also had to fix ffitest.h by setting
#define __c99
before
#include <stdint.h>
since gcc doesn't set __c99 which is required for this header on IRIX,
otherwise the testsuite doesn't work.

These minor problems occur only in the test suite and they are easily
fixed, but i'm not sure how to proceed. Obviously i would need to patch
in IRIX MIPSPro compiler definitions in my dejaGNU build to allow the
testsuite to be run with the MIPSPro compiler, or fix ffitest.h to avoid
certain headers to be parsed when running the testsuite with gcc.

Anyway, i'll probably come up with a solution today.

Frank