By default the preprocessed output includes linemarkers. This leads to
an error if -pedantic is used as e.g. during bootstrap:
s390-gen-builtins.h:1:3: error: style of line directive is a GCC extension [-Werror]
Fixed by omitting linemarkers while generating s390-gen-builtins.h.
gcc/ChangeLog:
* config/s390/t-s390: Generate s390-gen-builtins.h without
linemarkers.
$(POSTCOMPILE)
s390-gen-builtins.h: $(srcdir)/config/s390/s390-builtins.h
- $(COMPILER) -E $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $< > $@
+ $(COMPILER) -E -P $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $< > $@