Add to *FLAGS and *ADD rather than overwriting them

This makes CFLAGS pick up -O2, which shaves a few seconds runtime
off these very slow tests.

1 files changed, 6 insertions, 6 deletions

diff --git a/src/regress/lib/libssl/interop/libressl/Makefile b/src/regress/lib/libssl/interop/libressl/Makefile
index 78e995abef..d8e20ca122 100644
--- a/src/regress/lib/libssl/interop/libressl/Makefile
+++ b/src/regress/lib/libssl/interop/libressl/Makefile
@@ -1,11 +1,11 @@
-# $OpenBSD: Makefile,v 1.8 2020/12/17 00:51:11 bluhm Exp $
+# $OpenBSD: Makefile,v 1.9 2020/12/25 10:50:08 tb Exp $
 
 PROGS =                 client server
-CFLAGS =                -DLIBRESSL_HAS_TLS1_3
-CPPFLAGS =
-LDFLAGS =
-LDADD =                 -lssl -lcrypto
-DPADD =                 ${LIBSSL} ${LIBCRYPTO}
+CFLAGS +=               -DLIBRESSL_HAS_TLS1_3
+CPPFLAGS +=
+LDFLAGS +=
+LDADD +=                -lssl -lcrypto
+DPADD +=                ${LIBSSL} ${LIBCRYPTO}
 LD_LIBRARY_PATH =
 REGRESS_TARGETS =       run-self-client-server
 .for p in ${PROGS}