From 8b73735d6525c57634a94a75caaae3257236b714 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Fri, 29 May 2020 11:43:32 +0200
Subject: [PATCH] Set OPTION_USE_SYSTEM_LIBPNG/JPEG off under macOS by default

---
 CMake/options.cmake | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/CMake/options.cmake b/CMake/options.cmake
index 4d43d8e04..2c8b0c48d 100644
--- a/CMake/options.cmake
+++ b/CMake/options.cmake
@@ -229,7 +229,11 @@ endif(OPTION_USE_SYSTEM_ZLIB AND NOT ZLIB_FOUND)
 set(HAVE_LIBZ 1)
 
 #######################################################################
-option(OPTION_USE_SYSTEM_LIBJPEG "use system libjpeg" ON)
+if (APPLE)
+  option (OPTION_USE_SYSTEM_LIBJPEG "use system libjpeg" OFF)
+else ()
+  option (OPTION_USE_SYSTEM_LIBJPEG "use system libjpeg" ON)
+endif (APPLE)
 
 if(OPTION_USE_SYSTEM_LIBJPEG AND LIB_jpeg)
    include(FindJPEG)
@@ -253,7 +257,11 @@ endif(OPTION_USE_SYSTEM_LIBJPEG AND NOT JPEG_FOUND)
 set(HAVE_LIBJPEG 1)
 
 #######################################################################
-option(OPTION_USE_SYSTEM_LIBPNG "use system libpng" ON)
+if (APPLE)
+  option (OPTION_USE_SYSTEM_LIBPNG "use system libpng" OFF)
+else ()
+  option (OPTION_USE_SYSTEM_LIBPNG "use system libpng" ON)
+endif (APPLE)
 
 if(OPTION_USE_SYSTEM_LIBPNG AND LIB_png)
    include(FindPNG)