From 0c8ebad16ebad4a9ad8592f5ca7a8af43ae1caf0 Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Sat, 23 Jun 2012 14:23:44 +0000
Subject: add cmake option WITH_SYSTEM_OPENJPEG so linux can build cycles
 without having libopenjpeg installed.

---
 CMakeLists.txt                 | 18 +++++++++++++++---
 build_files/cmake/macros.cmake |  4 ++--
 extern/CMakeLists.txt          |  2 +-
 extern/libopenjpeg/image.c     |  1 -
 4 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b983a5556f6..f3614007ef9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -159,7 +159,7 @@ unset(PLATFORM_DEFAULT)
 if(UNIX AND NOT APPLE)
 	option(WITH_X11_XINPUT "Enable X11 Xinput (tablet support and unicode input)"	ON)
 	option(WITH_X11_XF86VMODE "Enable X11 video mode switching"	ON)
-	option(WITH_SYSTEM_GLEW "Use GLEW OpenGL wrapper library bundled with blender" ON)
+	option(WITH_SYSTEM_GLEW "Use GLEW OpenGL wrapper library provided by the operating system" ON)
 
 	# freebsd doesn't seems to support XDND
 	if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
@@ -170,6 +170,17 @@ else()
 	set(WITH_SYSTEM_GLEW OFF)
 endif()
 
+
+# (unix defaults to System OpenJPEG On)
+if(UNIX AND NOT APPLE)
+	set(PLATFORM_DEFAULT ON)
+else()
+	set(PLATFORM_DEFAULT OFF)
+endif()
+option(WITH_SYSTEM_OPENJPEG "Use the operating systems OpenJPEG library" ${PLATFORM_DEFAULT})
+unset(PLATFORM_DEFAULT)
+
+
 # Modifiers
 option(WITH_MOD_FLUID        	"Enable Elbeem Modifier (Fluid Simulation)" ON)
 option(WITH_MOD_SMOKE        	"Enable Smoke Modifier (Smoke Simulation)" ON)
@@ -1485,7 +1496,7 @@ endif()
 
 
 if(WITH_IMAGE_OPENJPEG)
-	if(UNIX AND NOT APPLE)
+	if(WITH_SYSTEM_OPENJPEG)
 		# dealt with above
 	else()
 		set(OPENJPEG_INCLUDE_DIRS "${CMAKE_SOURCE_DIR}/extern/libopenjpeg")
@@ -1791,8 +1802,9 @@ if(FIRST_RUN)
 	info_cfg_option(WITH_INSTALL_PORTABLE)
 	info_cfg_option(WITH_X11_XF86VMODE)
 	info_cfg_option(WITH_X11_XINPUT)
-	info_cfg_option(WITH_SYSTEM_GLEW)
 	info_cfg_option(WITH_MEM_JEMALLOC)
+	info_cfg_option(WITH_SYSTEM_GLEW)
+	info_cfg_option(WITH_SYSTEM_OPENJPEG)
 
 	info_cfg_text("Image Formats:")
 	info_cfg_option(WITH_IMAGE_CINEON)
diff --git a/build_files/cmake/macros.cmake b/build_files/cmake/macros.cmake
index 6939f21d461..61a89b568ad 100644
--- a/build_files/cmake/macros.cmake
+++ b/build_files/cmake/macros.cmake
@@ -193,7 +193,7 @@ macro(SETUP_LIBDIRS)
 	if(WITH_OPENIMAGEIO)
 		link_directories(${OPENIMAGEIO_LIBPATH})
 	endif()
-	if(WITH_IMAGE_OPENJPEG AND UNIX AND NOT APPLE)
+	if(WITH_IMAGE_OPENJPEG AND WITH_SYSTEM_OPENJPEG)
 		link_directories(${OPENJPEG_LIBPATH})
 	endif()
 	if(WITH_CODEC_QUICKTIME)
@@ -303,7 +303,7 @@ macro(setup_liblinks
 			target_link_libraries(${target} ${OPENEXR_LIBRARIES})
 		endif()
 	endif()
-	if(WITH_IMAGE_OPENJPEG AND UNIX AND NOT APPLE)
+	if(WITH_IMAGE_OPENJPEG AND WITH_SYSTEM_OPENJPEG)
 		target_link_libraries(${target} ${OPENJPEG_LIBRARIES})
 	endif()
 	if(WITH_CODEC_FFMPEG)
diff --git a/extern/CMakeLists.txt b/extern/CMakeLists.txt
index 67a899082e2..b5f94c06d4c 100644
--- a/extern/CMakeLists.txt
+++ b/extern/CMakeLists.txt
@@ -48,7 +48,7 @@ if(WITH_GAMEENGINE)
 	add_subdirectory(recastnavigation)
 endif()
 
-if(WITH_IMAGE_OPENJPEG AND (NOT UNIX OR APPLE))
+if(WITH_IMAGE_OPENJPEG AND (NOT WITH_SYSTEM_OPENJPEG))
 	add_subdirectory(libopenjpeg)
 endif()
 
diff --git a/extern/libopenjpeg/image.c b/extern/libopenjpeg/image.c
index a4d2c010a56..7c1e7f7faa2 100644
--- a/extern/libopenjpeg/image.c
+++ b/extern/libopenjpeg/image.c
@@ -86,4 +86,3 @@ void OPJ_CALLCONV opj_image_destroy(opj_image_t *image) {
 		opj_free(image);
 	}
 }
-
-- 
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