From 7c9e5602362c8ec576abdd66b414d3824e6cc307 Mon Sep 17 00:00:00 2001
From: Philippe Pepiot <phil@philpep.org>
Date: Thu, 11 Nov 2010 16:33:24 +0100
Subject: [PATCH] BuildSystem: Improve detection of optionals libs

---
 BSDmakefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/BSDmakefile b/BSDmakefile
index ce1328a..6b17ea0 100644
--- a/BSDmakefile
+++ b/BSDmakefile
@@ -5,8 +5,9 @@ PROG= wmfs
 MAN1= wmfs.1
 
 .for lib in xrandr xinerama imlib2
-HAVE_${lib:U}!= echo ${LIBS} | grep -q ${lib} && echo -DHAVE_${lib:U}
-CFLAGS+= ${HAVE_${lib:U}}
+.if !empty(LIBS:M${lib})
+CFLAGS+= -DHAVE_${lib:U}
+.endif
 .endfor
 
 CFLAGS_LIB!= pkg-config --cflags-only-I ${LIBS}