19980418 on IRIX-6.5

[Jim Wilson]

	 The testsuites failed until I inserted "-lpthread"
	into the "*lib" section of the specs file. Is
	there a better place for it?

It would go in LIB_SPEC in the mips/config/iris6.h file.  It perhaps
needs to be conditional on the --enable-threads option somehow, since
we don't necessary want to link it in by default.

	 After that I got execution failures from complex-5.c
	(explicit call to abort)

This fails on all 64 bit machines.  It is a fundamental problem with the
complex type support.

Jim