Use more portable options when making links in Makefile.fips

Makefile.fips

diff --git a/Makefile.fips b/Makefile.fips
index 245b592..8a26206 100644
--- a/Makefile.fips
+++ b/Makefile.fips
@@ -522,8 +522,8 @@
 links:
 	@$(PERL) $(TOP)/util/mkdir-p.pl include/openssl
 	@$(PERL) $(TOP)/util/mklink.pl include/openssl $(EXHEADER)
-	$(BUILDENV) $(MAKE) -C fips links
-	$(BUILDENV) SDIRS='$(LINKDIRS)' $(MAKE) -C crypto links
+	@set -e; dir=fips target=links; $(RECURSIVE_BUILD_CMD)
+	@set -e; dir=crypto target=links; $(RECURSIVE_BUILD_CMD)
 
 gentests:
 	@(cd test && echo "generating dummy tests (if needed)..." && \