Bugzilla bug #52173: accept both ytab.{c,h} and y.tab.{c,h} as the output

files of yacc.

security/nss/cmd/modutil/Makefile

@@ -72,17 +72,18 @@ include $(CORE_DEPTH)/coreconf/rules.mk
 
 include ../platrules.mk
 
-ifeq ($(OS_ARCH), WINNT)
-installparse.c:  installparse.y FORCE
-	yacc -d installparse.y
-	mv ytab.c installparse.c
-	mv ytab.h installparse.h
+#
+# A version of yacc for Win32 used at Netscape (nstools/bin/yacc.exe)
+# generates output files named ytab.c and ytab.h (probably to be 8.3
+# compliant).  So we accept both ytab.{c,h} and y.tab.{c,h} here.
+#
 
-FORCE:
-
-else
 installparse.c:  installparse.y
 	yacc -d installparse.y
-	mv y.tab.c installparse.c
-	mv y.tab.h installparse.h
-endif
+	if test -f ytab.c ; then \
+		mv ytab.c installparse.c; \
+		mv ytab.h installparse.h; \
+	else \
+		mv y.tab.c installparse.c; \
+		mv y.tab.h installparse.h; \
+	fi