From e2ff0645446caab8464952438d735d7879bd98a5 Mon Sep 17 00:00:00 2001
From: Nicholas Vitovitch <ngvitovitch@gmail.com>
Date: Wed, 11 Mar 2015 18:00:38 -0400
Subject: [PATCH] Conditionaly enables target_include_directories.

CMake's target_include_directories breaks compatibility with glfw's
minimum required version. The command is now if-guarded for
CMake <2.8.11.
---
 src/CMakeLists.txt | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 311ae1b59..86229b464 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -59,7 +59,13 @@ endif()
 
 add_library(glfw ${glfw_SOURCES} ${glfw_HEADERS})
 target_link_libraries(glfw ${glfw_LIBRARIES})
-target_include_directories(glfw PUBLIC $<INSTALL_INTERFACE:${GLFW_INSTALL_INCLUDE_DIR}>)
+if (NOT CMAKE_VERSION VERSION_LESS "2.8.11")
+    # CMake 2.8.11 introduced the target_include_directories command to
+    # include and/or export public, private, and interface include
+    # directories.  TODO If/when cmake_minimum_required increases to
+    # >=2.8.11, call this command unconditionally.
+    target_include_directories(glfw PUBLIC $<INSTALL_INTERFACE:${GLFW_INSTALL_INCLUDE_DIR}>)
+endif()
 
 set_target_properties(glfw PROPERTIES
                       OUTPUT_NAME "${GLFW_LIB_NAME}"