I am working on UnixWare 7.1.1 with gcc 2.95.3 and gpc 20010924. The rts configure script still does not work detecting the absence of sys_siglist. The variable in the test program has been changed to be volatile but it is still optimised out unless the variable is actually used. Turning optimisation off or returning sys_siglist in the test program both work for me.
Theo Carr-Brion