$OpenBSD: patch-vcl_Library_vclplug_gen_mk,v 1.6 2019/09/20 13:34:54 robert Exp $

Index: vcl/Library_vclplug_gen.mk
--- vcl/Library_vclplug_gen.mk.orig
+++ vcl/Library_vclplug_gen.mk
@@ -141,10 +141,10 @@ $(eval $(call gb_Library_add_libs,vclplug_gen,\
 endif
 endif # USE_XINERAMA
 
-ifeq ($(OS),LINUX)
+ifneq (,$(filter LINUX OPENBSD,$(OS)))
 $(eval $(call gb_Library_add_libs,vclplug_gen,\
 	-lm \
-	-ldl \
+	$(if $(filter LINUX,$(OS)),-ldl) \
 ))
 endif
 
