From 63b40d3e3a550a5c94d0a653a6e96b3e136fa75a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adrien=20B=C3=A9raud?= <adrien.beraud@savoirfairelinux.com>
Date: Sat, 22 Jul 2017 11:25:40 -0400
Subject: [PATCH] cmake: check library paths

---
 CMakeLists.txt | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8af257ad..6f607dbb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -60,8 +60,15 @@ if (OPENDHT_LTO)
     endif ()
 endif ()
 
-include_directories (SYSTEM "${MSGPACK_INCLUDE_DIRS}")
-include_directories (SYSTEM "${GNUTLS_INCLUDE_DIRS}" "${Nettle_INCLUDE_DIRS}")
+if (MSGPACK_INCLUDE_DIRS)
+    include_directories (SYSTEM "${MSGPACK_INCLUDE_DIRS}")
+endif ()
+if (GNUTLS_INCLUDE_DIRS)
+    include_directories (SYSTEM "${GNUTLS_INCLUDE_DIRS}")
+endif ()
+if (Nettle_INCLUDE_DIRS)
+    include_directories (SYSTEM "${Nettle_INCLUDE_DIRS}")
+endif ()
 link_directories (${Nettle_LIBRARY_DIRS})
 include_directories (
     ./
-- 
GitLab