From 8d48ee8da42de2d878db7b42586db8b3c67f83e1 Mon Sep 17 00:00:00 2001
From: Jonathan Scruggs <j.scruggs@gmail.com>
Date: Fri, 19 Jan 2018 10:17:18 +0000
Subject: [PATCH] Use GNUInstallDirs and fix install location for cmake files
 (#501)

GNUInstallDirs is supported on all platforms and variables are set
to the standard GNU locations.

Fix the location where the .cmake files are installed.

Signed-off by: Jonathan Scruggs <j.scruggs@gmail.com>
---
 CMakeLists.txt                     | 9 +++++----
 docs/CMakeLists.txt                | 4 ++--
 export/pkgconfig/OpenColorIO.pc.in | 6 ++----
 3 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a399d57a..473f1b79 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -60,6 +60,7 @@ endif()
 include(ParseArguments)
 include(OCIOMacros)
 include(ExternalProject)
+include(GNUInstallDirs)
 
 enable_language(CXX)
 
@@ -558,7 +559,7 @@ endif()
 configure_file(${CMAKE_SOURCE_DIR}/share/ocio/setup_ocio.sh.in
     ${CMAKE_CURRENT_BINARY_DIR}/share/ocio/setup_ocio.sh @ONLY)
 
-INSTALL(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/share/ocio/setup_ocio.sh DESTINATION share/ocio/)
+INSTALL(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/share/ocio/setup_ocio.sh DESTINATION ${CMAKE_INSTALL_DATADIR}/ocio/)
 
 ###############################################################################
 ### CPACK ###
@@ -623,7 +624,7 @@ if(TARGET OpenColorIO_STATIC)
         set(OCIO_STATIC_COMPILE_DEFINITIONS )
     endif()
 endif()
-install(EXPORT OpenColorIO DESTINATION cmake)
+install(EXPORT OpenColorIO DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/OpenColorIO)
 file(WRITE "${CMAKE_BINARY_DIR}/OpenColorIOConfig.cmake"
     "
     get_filename_component(OpenColorIO_DIR \"\${CMAKE_CURRENT_LIST_FILE}\" PATH)
@@ -635,7 +636,7 @@ file(WRITE "${CMAKE_BINARY_DIR}/OpenColorIOConfig.cmake"
     
     ## targets libraries + associated definitions
     if(NOT TARGET OpenColorIO)
-        include(\"\${OpenColorIO_DIR}/cmake/OpenColorIO.cmake\") ## thanks to imported target
+        include(\"\${OpenColorIO_DIR}/${CMAKE_INSTALL_LIBDIR}/cmake/OpenColorIO/OpenColorIO.cmake\") ## thanks to imported target
         if(TARGET OpenColorIO AND NOT OpenColorIO_USE_STATIC)
             message(STATUS \"shared target OpenColorIO : see OpenColorIO_LIBRARY\")
             set(OpenColorIO_LIBRARY         OpenColorIO)
@@ -673,4 +674,4 @@ file(WRITE "${CMAKE_BINARY_DIR}/OpenColorIOConfig.cmake"
     message(STATUS OPENCOLORIO_FOUND=\${OPENCOLORIO_FOUND})
     "
 )
-install(FILES "${CMAKE_BINARY_DIR}/OpenColorIOConfig.cmake" DESTINATION .)
+install(FILES "${CMAKE_BINARY_DIR}/OpenColorIOConfig.cmake" DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/OpenColorIO)
diff --git a/docs/CMakeLists.txt b/docs/CMakeLists.txt
index 5970db64..4d97f72c 100644
--- a/docs/CMakeLists.txt
+++ b/docs/CMakeLists.txt
@@ -138,7 +138,7 @@ add_custom_target(doc ALL
 add_dependencies(doc Sphinx) 
 
 install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/build-html/
-        DESTINATION ${CMAKE_INSTALL_PREFIX}/share/doc/OpenColorIO/html
+        DESTINATION ${CMAKE_INSTALL_DOCDIR}/html
         PATTERN .* EXCLUDE
 )
 
@@ -173,6 +173,6 @@ if(PDFLATEX_COMPILER)
     add_dependencies(pdf latex)
     
     install(FILES ${CMAKE_CURRENT_BINARY_DIR}/build-latex/OpenColorIO.pdf
-            DESTINATION ${CMAKE_INSTALL_PREFIX}/share/doc/OpenColorIO/)
+            DESTINATION ${CMAKE_INSTALL_DOCDIR})
     
 endif()
diff --git a/export/pkgconfig/OpenColorIO.pc.in b/export/pkgconfig/OpenColorIO.pc.in
index 81ab4ce3..c4553a4f 100644
--- a/export/pkgconfig/OpenColorIO.pc.in
+++ b/export/pkgconfig/OpenColorIO.pc.in
@@ -1,7 +1,5 @@
-prefix=@CMAKE_INSTALL_PREFIX@
-exec_prefix=@CMAKE_INSTALL_EXEC_PREFIX@
-includedir=${prefix}/include
-libdir=${exec_prefix}/lib@LIB_SUFFIX@
+libdir=@CMAKE_INSTALL_FULL_LIBDIR@
+includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
 
 Name: OpenColorIO
 Description: A color management framework for visual effects and animation