http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47558
--- Comment #39 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-02-04 01:31:30 UTC --- Also note that on Snow Leopard... gcc -v -mmacosx-version-min=10.5 himenoBMTxpa.c produces... -lgcc_s.10.5 -lgcc -lSystem so perhaps we just need... Index: gcc/config/darwin.h =================================================================== --- gcc/config/darwin.h (revision 169820) +++ gcc/config/darwin.h (working copy) @@ -328,11 +328,13 @@ extern GTY(()) int darwin_ms_struct; shared-libgcc|fexceptions|fgnu-runtime: \ %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_s.10.4) \ %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5) \ + %:version-compare(>= 10.6 mmacosx-version-min= -lSystem) \ %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_ext.10.4) \ %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5) \ -lgcc ; \ :%:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_s.10.4) \ %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5) \ + %:version-compare(>= 10.6 mmacosx-version-min= -lSystem) \ %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_ext.10.4) \ %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5) \ -lgcc }"