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From b1338eb12dd672ce373f61cec681af99d8b2c7df Mon Sep 17 00:00:00 2001
From: Markus Meier <maekke@gentoo.org>
Date: Sat, 14 Jan 2023 14:56:46 +0100
Subject: [PATCH] add and wire AUTODETECT_SDL2 and USE_SDL2 options
AUTODETECT_SDL2 with default ON is there to keep current behavior
USE_SDL2 to control SDL2 explicit behavior for distributions
https://gitweb.gentoo.org/repo/gentoo.git/tree/media-gfx/darktable/files/darktable-4.2.0_libs-deps-automagic.patch
---
DefineOptions.cmake | 2 ++
src/libs/CMakeLists.txt | 8 +++++++-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/DefineOptions.cmake b/DefineOptions.cmake
index 59ea1e3d5..24210473e 100644
--- a/DefineOptions.cmake
+++ b/DefineOptions.cmake
@@ -42,6 +42,8 @@ option(USE_GMIC "Use G'MIC image processing framework." ON)
option(USE_ICU "Use ICU - International Components for Unicode." ON)
option(USE_GAME "Build 1st April easter egg game" ON)
option(FORCE_COLORED_OUTPUT "Always produce ANSI-colored output (GNU/Clang only)." OFF)
+option(AUTODETECT_SDL2 "Autodetect SDL2 support" ON)
+option(USE_SDL2 "Enable SDL2 support" OFF)
if (USE_OPENCL)
option(TESTBUILD_OPENCL_PROGRAMS "Test-compile opencl programs (needs llvm and clang 3.9+)" ON)
diff --git a/src/libs/CMakeLists.txt b/src/libs/CMakeLists.txt
index 20a5f0eff..50caf6f27 100644
--- a/src/libs/CMakeLists.txt
+++ b/src/libs/CMakeLists.txt
@@ -92,7 +92,13 @@ if(PortMidi_FOUND)
target_link_libraries (midi ${PortMidi_LIBRARY})
endif()
-find_package(SDL2)
+if (AUTODETECT_SDL2)
+ find_package(SDL2)
+endif()
+if (USE_SDL2)
+ find_package(SDL2 REQUIRED)
+endif()
+
if(SDL2_FOUND)
add_definitions("-DHAVE_SDL")
set(MODULES ${MODULES} gamepad)
--
2.38.2
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