I have posted some java testsuite result from 3.1 on irix6.5 There are a few issues - increase command line length http://gcc.gnu.org/install/specific.html#mips-sgi-irix6 - rename boehm-gc/mips_sgi_mach_dep.S to .s - cannot build with -mabi=64. http://gcc.gnu.org/ml/gcc-testresults/2002-02/msg00603.html