https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123976
--- Comment #2 from Peter Dyballa <Peter_Dyballa at web dot de> --- I started a new (controlled) build. In a few hours the error will be hit again. libgcc/Makefile.in has: 361 # Create links to files specified in config.host. 362 LIBGCC_LINKS = enable-execute-stack.c \ 363 unwind.h md-unwind-def.h md-unwind-support.h \ 364 sfp-machine.h gthr-default.h 365 366 enable-execute-stack.c: $(srcdir)/$(enable_execute_stack) 367 -$(LN_S) $< $@ 368 unwind.h: $(srcdir)/$(unwind_header) 369 -$(LN_S) $< $@ 370 md-unwind-def.h: $(srcdir)/config/$(md_unwind_def_header) 371 -$(LN_S) $< $@ 372 md-unwind-support.h: $(srcdir)/config/$(md_unwind_header) 373 -$(LN_S) $< $@ 374 sfp-machine.h: $(srcdir)/config/$(sfp_machine_header) 375 -$(LN_S) $< $@ 376 gthr-default.h: $(srcdir)/$(thread_header) 377 -$(LN_S) $< $@ So six symlinks should be created. libgcc/config.host, the relevant file, I presume, has: 54 # md_unwind_def_header The name of a header file defining architecture 55 # -specific frame information types for unwinding. 56 # md_unwind_header The name of a header file defining architecture 57 # -specific handlers used in the unwinder. … 68 # unwind_header The name of the header file declaring the unwind 69 # runtime interface routines. … 77 md_unwind_def_header=no-unwind.h 78 md_unwind_header=no-unwind.h 79 unwind_header=unwind-generic.h The case 1220 powerpc-*-darwin*) does not change anything, because my PowerBook has a G4 and not a G5 CPU (which has a correction). So everything looks OK until here. Could be the creation of Makefile introduces some glitch… in a few hours!
