--- a/make/project.xml	Fri Feb 04 18:41:40 2022 +0100
+++ b/make/project.xml	Sat Feb 19 16:34:29 2022 +0100
@@ -80,9 +80,10 @@
 	<!-- optional dependencies -->
 	<dependency name="libpq">
 		<pkgconfig>libpq</pkgconfig>
-		<cflags>-DENABLE_POSTGRESQL</cflags>
 		<make>
+CFLAGS += -DENABLE_POSTGRESQL
 PLUGINS += postgresql
+TEST_PLUGIN_LDFLAGS += -lwspgtest
 		</make>
 	</dependency>