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-rw-r--r--Makefile7
1 files changed, 6 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index eaf50be1..6fb88e8e 100644
--- a/Makefile
+++ b/Makefile
@@ -207,7 +207,12 @@ $(eval $(foreach item,y.tab.c y.tab.h lex.yy.c,\
lex.yy.c: $(top_srcdir)parser.l
$(call ABBREV,LEX)
$(V)rm -f $@
- $(V)$(LEX) $(LEX_DBG_FLAGS) $<
+ $(V)if $(LEX) $(LEX_DBG_FLAGS) $< ; then \
+ sed -e s@//.*@@ < $@ > $@.tmp ; \
+ mv $@.tmp $@ ; \
+ else \
+ exit 1 ; \
+ fi
$(V)chmod a-w $@
y.tab.h: y.tab.c