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-rw-r--r--Makefile.in3
1 files changed, 3 insertions, 0 deletions
diff --git a/Makefile.in b/Makefile.in
index 6f617c34d..766b1124d 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -215,6 +215,9 @@ lex.c: defs/keywords
.c.S:
$(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -S $<
+.c.i:
+ $(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -E $< > $@
+
clean-local::
@$(RM) ext/extinit.c ext/extinit.$(OBJEXT) ext/ripper/y.output