From edabf194611dffcf59738b613b715e0ec027c940 Mon Sep 17 00:00:00 2001
From: Jamie Snape <jamie.snape@kitware.com>
Date: Mon, 19 Dec 2016 11:44:39 -0500
Subject: [PATCH] Write and install CMake package config files

This allows find_package(tinyobjloader) to be called.
---
 CMakeLists.txt                | 60 +++++++++++++++++++++++++++++++++--
 tinyobjloader-config.cmake.in |  9 ++++++
 2 files changed, 67 insertions(+), 2 deletions(-)
 create mode 100644 tinyobjloader-config.cmake.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e43ea57..956c0c2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,6 +3,8 @@
 #on the platform and configuration it is set to build in.
 project(tinyobjloader)
 cmake_minimum_required(VERSION 2.8.6)
+set(TINYOBJLOADER_SOVERSION 1)
+set(TINYOBJLOADER_VERSION 1.0.4)
 
 #Folder Shortcuts
 set(TINYOBJLOADEREXAMPLES_DIR ${CMAKE_CURRENT_SOURCE_DIR}/examples)
@@ -22,15 +24,32 @@ set(tinyobjloader-examples-objsticher
 	${TINYOBJLOADEREXAMPLES_DIR}/obj_sticher/obj_sticher.cc
 	)
 
+#Install destinations
+set(TINYOBJLOADER_CMAKE_DIR lib/cmake)
+set(TINYOBJLOADER_INCLUDE_DIR include)
+set(TINYOBJLOADER_LIBRARY_DIR lib)
+
 option(TINYOBJLOADER_BUILD_TEST_LOADER "Build Example Loader Application" OFF)
 option(TINYOBJLOADER_COMPILATION_SHARED "Build as shared library" OFF)
 
 if (TINYOBJLOADER_COMPILATION_SHARED)
 	add_library(tinyobjloader SHARED ${tinyobjloader-Source})
+	set_target_properties(tinyobjloader PROPERTIES
+		SOVERSION ${TINYOBJLOADER_SOVERSION}
+	)
 else()
 	add_library(tinyobjloader STATIC ${tinyobjloader-Source})
 endif()
 
+set_target_properties(tinyobjloader PROPERTIES VERSION ${TINYOBJLOADER_VERSION})
+
+target_include_directories(tinyobjloader INTERFACE
+	$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+	$<INSTALL_INTERFACE:${TINYOBJLOADER_INCLUDE_DIR}>
+	)
+
+export(TARGETS tinyobjloader FILE ${PROJECT_NAME}-targets.cmake)
+
 if(TINYOBJLOADER_BUILD_TEST_LOADER)
   add_executable(test_loader ${tinyobjloader-Example-Source})
   target_link_libraries(test_loader tinyobjloader)
@@ -48,14 +67,51 @@ if (TINYOBJLOADER_BUILD_OBJ_STICHER)
     )
 endif()
 
+#Write CMake package config files
+include(CMakePackageConfigHelpers)
+
+configure_package_config_file(
+  tinyobjloader-config.cmake.in
+  tinyobjloader-config.cmake
+  INSTALL_DESTINATION
+  ${TINYOBJLOADER_CMAKE_DIR}
+  PATH_VARS
+  TINYOBJLOADER_INCLUDE_DIR
+  TINYOBJLOADER_LIBRARY_DIR
+  NO_CHECK_REQUIRED_COMPONENTS_MACRO
+  )
+
+write_basic_package_version_file(tinyobjloader-config-version.cmake
+  VERSION
+  ${TINYOBJLOADER_VERSION}
+  COMPATIBILITY
+  SameMajorVersion
+  )
+
 #Installation
 install ( TARGETS
   tinyobjloader
+  EXPORT ${PROJECT_NAME}-targets
   DESTINATION
-  lib
+  ${TINYOBJLOADER_LIBRARY_DIR}
+  PUBLIC_HEADER DESTINATION
+  ${TINYOBJLOADER_INCLUDE_DIR}
+  RUNTIME DESTINATION
+  bin
+  )
+install ( EXPORT
+  ${PROJECT_NAME}-targets
+  DESTINATION
+  ${TINYOBJLOADER_LIBRARY_DIR}
   )
 install ( FILES
   tiny_obj_loader.h
   DESTINATION
-  include
+  ${TINYOBJLOADER_INCLUDE_DIR}
+  )
+install ( FILES
+  "${CMAKE_CURRENT_BINARY_DIR}/tinyobjloader-config.cmake"
+  "${CMAKE_CURRENT_BINARY_DIR}/tinyobjloader-config-version.cmake"
+  DESTINATION
+  ${TINYOBJLOADER_CMAKE_DIR}
   )
diff --git a/tinyobjloader-config.cmake.in b/tinyobjloader-config.cmake.in
new file mode 100644
index 0000000..2d6b3e3
--- /dev/null
+++ b/tinyobjloader-config.cmake.in
@@ -0,0 +1,9 @@
+@PACKAGE_INIT@
+
+set(TINYOBJLOADER_VERSION "@TINYOBJLOADER_VERSION@")
+
+set_and_check(TINYOBJLOADER_INCLUDE_DIRS "@PACKAGE_TINYOBJLOADER_INCLUDE_DIR@")
+set_and_check(TINYOBJLOADER_LIBRARY_DIRS "@PACKAGE_TINYOBJLOADER_LIBRARY_DIR@")
+set(TINYOBJLOADER_LIBRARIES tinyobjloader)
+
+include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@-targets.cmake")