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-rw-r--r--gcc/objc/Make-lang.in11
1 files changed, 8 insertions, 3 deletions
diff --git a/gcc/objc/Make-lang.in b/gcc/objc/Make-lang.in
index 602948e..bc5f709 100644
--- a/gcc/objc/Make-lang.in
+++ b/gcc/objc/Make-lang.in
@@ -1,4 +1,4 @@
-# Top level makefile fragment for GNU Objective-C
+# Top level -*- makefile -*- fragment for GNU Objective-C
# Copyright (C) 1997, 1998, 2000, 2001 Free Software Foundation, Inc.
#This file is part of GNU CC.
@@ -73,8 +73,13 @@ objc-parse.o : $(srcdir)/objc/objc-parse.c \
po-generated: $(srcdir)/objc/objc-parse.c
$(srcdir)/objc/objc-parse.c : $(srcdir)/objc/objc-parse.y
cd $(srcdir)/objc; \
- $(BISON) $(BISONFLAGS) -o op$$$$.c objc-parse.y ; \
- mv -f op$$$$.c objc-parse.c
+ if $(BISON) $(BISONFLAGS) -o op$$$$.c objc-parse.y ; then \
+ test -f op$$$$.output && mv -f op$$$$.output objc-parse.output ; \
+ mv -f op$$$$.c objc-parse.c ; \
+ else \
+ rm -f op$$$$.* ; \
+ false ; \
+ fi
$(srcdir)/objc/objc-parse.y: $(srcdir)/c-parse.in
echo '/*WARNING: This file is automatically generated!*/' >tmp-objc-prs.y