From e6569a1090be063f34624474f0d4578f37a169ae Mon Sep 17 00:00:00 2001
From: Florent Le Coz <louiz@louiz.org>
Date: Fri, 27 Feb 2015 12:40:50 +0100
Subject: Only use include_directory() if the directory path is defined

---
 CMakeLists.txt | 16 ++++++++++++----
 louloulibs     |  2 +-
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 808d9e4..a516589 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -74,10 +74,18 @@ include_directories(${ICONV_INCLUDE_DIRS})
 include_directories(${LIBUUID_INCLUDE_DIRS})
 
 # If they are found in louloulibs CMakeLists.txt, we inherite these values
-include_directories(${LIBIDN_INCLUDE_DIRS})
-include_directories(${SYSTEMD_INCLUDE_DIRS})
-include_directories(SYSTEM ${BOTAN_INCLUDE_DIRS})
-include_directories(${CARES_INCLUDE_DIRS})
+if(LIBIDN_FOUND)
+  include_directories(${LIBIDN_INCLUDE_DIRS})
+endif()
+if(SYSTEMD_FOUND)
+  include_directories(${SYSTEMD_INCLUDE_DIRS})
+endif()
+if(BOTAN_FOUND)
+  include_directories(SYSTEM ${BOTAN_INCLUDE_DIRS})
+endif()
+if(CARES_FOUND)
+  include_directories(${CARES_INCLUDE_DIRS})
+endif()
 
 #
 ## irclib
diff --git a/louloulibs b/louloulibs
index b6af145..d6a3724 160000
--- a/louloulibs
+++ b/louloulibs
@@ -1 +1 @@
-Subproject commit b6af145bfb9561a1bb1ecb940f50163c5ce4dbbb
+Subproject commit d6a3724c6a0127a49a9e7adb1090bb7438c8d0f2
-- 
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