From 25453f13bbd74f94eb1be3d15320f6c79aad2472 Mon Sep 17 00:00:00 2001
From: Thomas Huth <th.huth@posteo.eu>
Date: Sat, 21 Feb 2026 23:07:35 +0100
Subject: [PATCH] Use SDL3 by default if it's available

The support for SDL3 should now be good enough so we can use it by default
if it's available.
---
 .cirrus.yml    |  2 +-
 .gitlab-ci.yml |  2 +-
 CMakeLists.txt | 19 +++++++++----------
 configure      |  7 -------
 hatari.spec    |  3 ++-
 5 files changed, 13 insertions(+), 20 deletions(-)

diff --git a/.cirrus.yml b/.cirrus.yml
index de884096a..d5f930ea1 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -117,7 +117,7 @@ cygwin_task:
   script:
     - C:\tools\cygwin\bin\bash.exe -lc "cd '%cd%' ;
        CFLAGS='-Werror -Wno-error=char-subscripts'
-       cmake -G 'Unix Makefiles' -DENABLE_SDL3=1 ."
+       cmake -G 'Unix Makefiles' ."
     - C:\tools\cygwin\bin\bash.exe -lc "cd '%cd%' ; make -j4"
   test_script:
     - C:\tools\cygwin\bin\bash.exe -lc "cd '%cd%' ; ctest -j4 --output-on-failure"
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 72572d24f..8255b694e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -94,7 +94,7 @@ build-fedora:
   before_script:
     - dnf update -y
     - dnf install -y cmake make gcc diffutils python-unversioned-command
-          capstone-devel GraphicsMagick SDL2-devel libpng-devel zlib-devel tidy
+          capstone-devel GraphicsMagick SDL3-devel libpng-devel zlib-devel tidy
           python3-gobject gtk3 readline-devel man git rpmdevtools libarchive-devel
   script:
     - rpmdev-setuptree
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 57df9f749..2361df4ca 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,8 +55,6 @@ set(ENABLE_DSP_EMU 1
     CACHE BOOL "Enable DSP 56k emulator for Falcon mode")
 set(ENABLE_TRACING 1
     CACHE BOOL "Enable tracing messages for debugging")
-set(ENABLE_SDL3 0
-    CACHE BOOL "Use SDL3 instead of SDL2")
 
 find_path(LIBRETRO_INCLUDE_DIR libretro.h
           PATH_SUFFIXES libretro libretro-common)
@@ -123,19 +121,20 @@ endif(ENABLE_OSX_BUNDLE)
 # Check for libraries:
 # ####################
 
-if(ENABLE_SDL3)
-	find_package(SDL3)
-	if(NOT SDL3_FOUND)
-		message(FATAL_ERROR "SDL3 library not found!")
-	endif(NOT SDL3_FOUND)
+if(NOT DEFINED ENABLE_SDL3 OR ENABLE_SDL3)
+	find_package(SDL3 QUIET)
+endif()
+if(SDL3_FOUND)
 	# Yes, we're cheating by re-using the SDL2_* variables:
 	set(SDL2_INCLUDE_DIRS ${SDL2_INCLUDE_DIRS})
 	set(SDL2_LIBRARIES ${SDL3_LIBRARIES})
+	set(ENABLE_SDL3 1 CACHE BOOL "Use SDL3 instead of SDL2")
 else()
 	find_package(SDL2)
 	if(NOT SDL2_FOUND)
-		message(FATAL_ERROR "SDL2 library not found!")
+		message(FATAL_ERROR "SDL library not found!")
 	endif(NOT SDL2_FOUND)
+	set(ENABLE_SDL3 0 CACHE BOOL "Use SDL3 instead of SDL2")
 endif()
 
 find_package(Math)
@@ -216,7 +215,7 @@ if(DETECTED_LFS_CFLAGS)
 endif(DETECTED_LFS_CFLAGS)
 
 # Additional CFLAGS suggested by the SDL library:
-if(NOT ENABLE_SDL3)
+if(NOT SDL3_FOUND)
     if(PKG_CONFIG_FOUND)
 	execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} --cflags-only-other sdl2
 			OUTPUT_VARIABLE SDL2_OTHER_CFLAGS
@@ -451,7 +450,7 @@ Libraries summary :
 -------------------
 ")
 
-if(ENABLE_SDL3)
+if(SDL3_FOUND)
 	message("  - sdl :\tusing SDL3 ${SDL3_VERSION}")
 else()
 	message("  - sdl :\tusing SDL2 ${SDL2_VERSION}")
diff --git a/configure b/configure
index a3b584e0e..a4e7110a7 100755
--- a/configure
+++ b/configure
@@ -17,7 +17,6 @@ print_help()
   echo "  --enable-asan              Enable address sanitizer debug build"
   echo "  --enable-debug             Enable debug (non-optimized) build"
   echo "  --disable-dsp              Disable DSP emulation for Falcon mode."
-  echo "  --enable-sdl3              Use SDL3 instead of SDL2"
   echo "  --disable-tracing          Disable tracing messages for debugging"
   echo "  --disable-osx-bundle       Disable application bundling on macOS"
   echo "  --enable-ubsan             Enable undefined behavior sanitizer debug build"
@@ -65,12 +64,6 @@ do
     --disable-dsp)
       cmake_args="$cmake_args -DENABLE_DSP_EMU:BOOL=0"
     ;;
-    --enable-sdl3)
-      cmake_args="$cmake_args -DENABLE_SDL3:BOOL=1"
-    ;;
-    --disable-sdl3)
-      cmake_args="$cmake_args -DENABLE_SDL3:BOOL=0"
-    ;;
     --enable-tracing)
       cmake_args="$cmake_args -DENABLE_TRACING:BOOL=1"
     ;;
diff --git a/hatari.spec b/hatari.spec
index 688fc5848..7a709145c 100644
--- a/hatari.spec
+++ b/hatari.spec
@@ -19,7 +19,8 @@ Prefix:       /usr
 
 BuildRequires: binutils cmake coreutils cpio cpp diffutils file filesystem
 BuildRequires: findutils gcc grep gzip libgcc make man patch sed util-linux
-BuildRequires: glibc-devel zlib-devel SDL2-devel libpng-devel readline-devel
+BuildRequires: glibc-devel zlib-devel SDL3-devel libpng-devel readline-devel
+BuildRequires: libarchive-devel
 
 # Required by zip2st and atari-hd-image
 Requires: unzip