Peter:
I would (for now anyway) try building without the sdk, try setting setenv GPC_ALWAYS_USE_SDK 0
Unfortunately it still ends with:
/var/folders/vg/ts3vj22j2y3d5n3cmmhw6gt9dzb4gf/T//ccQXON5q.s:522:2: error: unknown directive .stabn 224,0,0,Lscope0 ^ /var/folders/vg/ts3vj22j2y3d5n3cmmhw6gt9dzb4gf/T//ccQXON5q.s:524:9: error: unsupported directive '.stabs' .stabs "",100,0,0,Letext ^ make[3]: *** [libgcc/./_muldi3.o] Error 1 make[2]: *** [libgcc.a] Error 2 make[1]: *** [stage1_build] Error 2 make: *** [bootstrap] Error 2
Tom
Thomas D. Schneider, Ph.D. Senior Investigator National Institutes of Health National Cancer Institute Center for Cancer Research Gene Regulation and Chromosome Biology Laboratory Molecular Information Theory Group Frederick, Maryland 21702-1201 https://schneider.ncifcrf.gov (current link) https://alum.mit.edu/www/toms (permanent link)