diff options
Diffstat (limited to 'gcc/objc/Make-lang.in')
| -rw-r--r-- | gcc/objc/Make-lang.in | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/gcc/objc/Make-lang.in b/gcc/objc/Make-lang.in index c91148a..8215283 100644 --- a/gcc/objc/Make-lang.in +++ b/gcc/objc/Make-lang.in @@ -57,11 +57,20 @@ OBJC_OBJS = objc/objc-lang.o objc/objc-act.o hash-table.o \ objc_OBJS = $(OBJC_OBJS) cc1obj-checksum.o +# compute checksum over all object files and the options +# re-use the checksum from the prev-final stage so it passes +# the bootstrap comparison and allows comparing of the cc1 binary cc1obj-checksum.c : build/genchecksum$(build_exeext) checksum-options \ $(OBJC_OBJS) $(C_AND_OBJC_OBJS) $(BACKEND) $(LIBDEPS) - build/genchecksum$(build_exeext) $(OBJC_OBJS) $(C_AND_OBJC_OBJS) \ - $(BACKEND) $(LIBDEPS) checksum-options > cc1obj-checksum.c.tmp && \ - $(srcdir)/../move-if-change cc1obj-checksum.c.tmp cc1obj-checksum.c + if [ -f ../stage_final ] \ + && cmp -s ../stage_current ../stage_final \ + && [ -f ../prev-gcc/$@ ]; then \ + cp ../prev-gcc/$@ $@; \ + else \ + build/genchecksum$(build_exeext) $(OBJC_OBJS) $(C_AND_OBJC_OBJS) \ + $(BACKEND) $(LIBDEPS) checksum-options > $@.tmp && \ + $(srcdir)/../move-if-change $@.tmp $@; \ + fi cc1obj$(exeext): $(OBJC_OBJS) $(C_AND_OBJC_OBJS) cc1obj-checksum.o $(BACKEND) \ $(LIBDEPS) $(objc.prev) |