From 288d1af3096b09374338a9f5202ee148cbc31b03 Mon Sep 17 00:00:00 2001
From: Zbigniew Mandziejewicz <shaxbee@gmail.com>
Date: Sun, 29 Mar 2015 10:41:09 +0800
Subject: [PATCH] Export glm as interface library for CMake 2.8.12 and newer

---
 CMakeLists.txt        | 35 +++++++++++++++++++++++++++++++++++
 cmake/glmConfig.cmake |  1 +
 2 files changed, 36 insertions(+)
 create mode 100644 cmake/glmConfig.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5925d5fe..329b846a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,8 @@
 cmake_minimum_required(VERSION 2.6 FATAL_ERROR)
 
 project(glm)
+set(GLM_VERSION "0.9.6")
+
 enable_testing()
 
 list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
@@ -144,3 +146,36 @@ add_subdirectory(test)
 add_subdirectory(util)
 
 install(DIRECTORY glm DESTINATION ${CMAKE_INSTALL_FULL_INCLUDEDIR})
+
+if (NOT CMAKE_VERSION VERSION_LESS "2.8.12")
+    add_library(glm INTERFACE)
+    target_include_directories(glm INTERFACE
+        $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+    )
+    install(TARGETS glm EXPORT glmTargets)
+
+    set(GLM_INSTALL_CONFIG_DIR "${CMAKE_INSTALL_LIBDIR}/cmake/glm")
+
+    include(CMakePackageConfigHelpers)
+    write_basic_package_version_file(
+        "${CMAKE_CURRENT_BINARY_DIR}/glmVersion.cmake"
+        VERSION ${GLM_VERSION}
+        COMPATIBILITY AnyNewerVersion
+    )
+
+    export(
+        EXPORT glmTargets
+        FILE "${CMAKE_CURRENT_BINARY_DIR}/glmTargets.cmake"
+    )
+    install(
+        EXPORT glmTargets FILE glmTargets.cmake
+        DESTINATION ${GLM_INSTALL_CONFIG_DIR}
+    )
+
+    install(
+        FILES 
+            cmake/glmConfig.cmake
+            "${CMAKE_CURRENT_BINARY_DIR}/glmVersion.cmake"
+        DESTINATION ${GLM_INSTALL_CONFIG_DIR}
+    )
+endif()
diff --git a/cmake/glmConfig.cmake b/cmake/glmConfig.cmake
new file mode 100644
index 00000000..ea324ab6
--- /dev/null
+++ b/cmake/glmConfig.cmake
@@ -0,0 +1 @@
+include("${CMAKE_CURRENT_LIST_DIR}/glmTargets.cmake")