fips/Makefile: $(CC) -dumpversion can't be used to identify gcc, HP C

doesn't return error code in reply to -dumpversion.

fips/Makefile

@@ -103,7 +103,7 @@ fipscanister.o: fips_start.o $(LIBOBJ) $(FIPS_OBJ_LISTS) fips_end.o
 	[ "$$os" = "AIX" ] && cflags="$$cflags -Wl,-bnoobjreorder"; \
 	if [ -n "${FIPS_SITE_LD}" ]; then \
 		set -x; ${FIPS_SITE_LD} -r -o $@ $$objs; \
-	elif $(CC) -dumpversion >/dev/null 2>&1; then \
+	elif ($(CC) -v 2>&1 | grep "gcc version")>/dev/null; then \
 		set -x; $(CC) $$cflags -r -nostdlib -o $@ $$objs ; \
 	else case "$$os" in \
 		HP-UX|OSF1|SunOS) set -x; /usr/ccs/bin/ld -r -o $@ $$objs ;; \