Schneider wrote on Wed, 18 Nov 2015:
6% build-gpc.command ... configure: error: installation or configuration problem: C compiler cannot create e xecutables. make[2]: *** [p/rts/Makefile] Error 1 make[1]: *** [stage1_build] Error 2 make: *** [bootstrap] Error 2
Hmm.
Check what the associated config.log says.
Jonas