Adjusted SDL build script to work with SDL3 (kind of).

recipes/SDL/fix_sdl3_from_worktree.patch

@@ -0,0 +1,13 @@
+diff --git a/cmake/GetGitRevisionDescription.cmake b/cmake/GetGitRevisionDescription.cmake
+index a08895c64..d3873387d 100644
+--- a/cmake/GetGitRevisionDescription.cmake
++++ b/cmake/GetGitRevisionDescription.cmake
+@@ -143,7 +143,7 @@ function(get_git_head_revision _refspecvar _hashvar)
+             string(REGEX REPLACE "gitdir: (.*)$" "\\1" git_worktree_dir
+                                  ${worktree_ref})
+             string(STRIP ${git_worktree_dir} git_worktree_dir)
+-            _git_find_closest_git_dir("${git_worktree_dir}" GIT_DIR)
++            set(GIT_DIR "${git_worktree_dir}")
+             set(HEAD_SOURCE_FILE "${git_worktree_dir}/HEAD")
+         endif()
+     else()

recipes/SDL/recipe.py

@@ -6,22 +6,32 @@ from SCons.Script import *
 
 def _git_cook(env: Environment, repo: dict) -> dict:
     checkout_root = repo['checkout_root']
+
     build_result = env.CMakeProject(project_root=checkout_root, generate_args = ['-DSDL_STATIC=ON', '-DSDL_SHARED=OFF'])
     libs = []
     if platform.system() == 'Windows':
         if env['BUILD_TYPE'] == 'debug':
-            libs.append('SDL2-staticd')
+            lib_names = ['SDL2-staticd', 'SDL3-staticd']
         else:
-            libs.append('SDL2-static')
+            lib_names = ['SDL2-static', 'SDL3-static']
         libs.extend(('kernel32', 'user32', 'gdi32', 'winmm', 'imm32', 'ole32', 'oleaut32', 'version', 'uuid', 'advapi32', 'setupapi', 'shell32', 'dinput8'))
     else:
         if env['BUILD_TYPE'] == 'debug':
-            libs.append('SDL2d')
+            lib_names = ['SDL2d', 'SDL3']
         else:
-            libs.append('SDL2')
+            lib_names = ['SDL2', 'SDL3']
+    lib_file = None
+    is_sdl3 = False
+    for lib_name in lib_names:
+        lib_file = env.FindLib(lib_name, paths=build_result['LIBPATH'], allow_fail=True)
+        if lib_file:
+            is_sdl3 = "SDL3" in lib_name
+            break
+    if not lib_file:
+        env.Error('Could not find SDL lib file.')
+    libs.insert(0, lib_file)
     return {
-        'LIBPATH': build_result['LIBPATH'],
+        'CPPPATH': [os.path.join(build_result['install_dir'], (is_sdl3 and 'include' or 'include/SDL2'))], # SDL is really weird about include paths ...
-        'CPPPATH': [os.path.join(build_result['install_dir'], 'include/SDL2')], # SDL is really weird about include paths ...
         'LIBS': libs
     }