tests: use AM_CFLAGS instead of CFLAGS directly

Signed-off-by: Thomas Graf <tgraf@suug.ch>

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 7953176eff1f674d9abb69edcc0035eea323e7d2..4b63a7c103c5562efd4ac44ac11d59b4d670c86c 100644 (file)
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -14,7 +14,7 @@ LDADD = \
        ${top_builddir}/lib/libnl-route-3.la \
        @CHECK_LIBS@
 
-CFLAGS += @CHECK_CFLAGS@
+AM_CFLAGS = @CHECK_CFLAGS@
 
 UNIT_TESTS = check-all