From 3cd6aeb541781e23d9129c9503611740134c45e2 Mon Sep 17 00:00:00 2001
From: "Christoph J. Thompson" <cjsthompson@gmail.com>
Date: Tue, 6 Aug 2013 06:33:32 +0200
Subject: On UNIX, if pkg-config is available, use it to find the location of
 libconfig's headers.

	modified:   cmake/FindLIBCONFIG.cmake
---
 cmake/FindLIBCONFIG.cmake | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/cmake/FindLIBCONFIG.cmake b/cmake/FindLIBCONFIG.cmake
index d5018240..b3ae4d11 100644
--- a/cmake/FindLIBCONFIG.cmake
+++ b/cmake/FindLIBCONFIG.cmake
@@ -5,7 +5,12 @@
 # LIBCONFIG_FOUND
 #
 
-FIND_PATH(LIBCONFIG_INCLUDE_DIR NAMES libconfig.h)
+if (UNIX)
+  find_package(PkgConfig QUIET)
+  pkg_check_modules(_LIBCONFIG QUIET libconfig)
+endif ()
+
+FIND_PATH(LIBCONFIG_INCLUDE_DIR NAMES libconfig.h HINTS ${_LIBCONFIG_INCLUDEDIR})
 
 FIND_LIBRARY(LIBCONFIG_LIBRARY NAMES config)
 
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