$OpenBSD: patch-sdl2-config_cmake_in,v 1.3 2021/08/20 16:59:32 thfr Exp $

Index: sdl2-config.cmake.in
--- sdl2-config.cmake.in.orig
+++ sdl2-config.cmake.in
@@ -10,72 +10,3 @@ set(SDL2_LIBDIR "${libdir}")
 set(SDL2_INCLUDE_DIRS "${includedir}/SDL2")
 set(SDL2_LIBRARIES "-L${SDL2_LIBDIR} @SDL_RLD_FLAGS@ @SDL_LIBS@")
 string(STRIP "${SDL2_LIBRARIES}" SDL2_LIBRARIES)
-
-if(NOT TARGET SDL2::SDL2)
-  # provide SDL2::SDL2, SDL2::SDL2main and SDL2::SDL2-static targets, like SDL2Config.cmake does, for compatibility
-
-  # Remove -lSDL2 as that is handled by CMake, note the space at the end so it does not replace e.g. -lSDL2main
-  # This may require "libdir" beeing set (from above)
-  string(REPLACE "-lSDL2 " "" SDL2_EXTRA_LINK_FLAGS "@SDL_RLD_FLAGS@ @SDL_LIBS@ ")
-  # also get rid of -lSDL2main, if you want to link against that use both SDL2::SDL2main and SDL2::SDL2 (in that order)
-  # (SDL2Config.cmake has the same behavior)
-  string(REPLACE "-lSDL2main" "" SDL2_EXTRA_LINK_FLAGS ${SDL2_EXTRA_LINK_FLAGS})
-  string(STRIP "${SDL2_EXTRA_LINK_FLAGS}" SDL2_EXTRA_LINK_FLAGS)
-  string(REPLACE "-lSDL2 " "" SDL2_EXTRA_LINK_FLAGS_STATIC "@SDL_STATIC_LIBS@ ")
-  string(STRIP "${SDL2_EXTRA_LINK_FLAGS_STATIC}" SDL2_EXTRA_LINK_FLAGS_STATIC)
-
-if(WIN32 AND NOT MSVC)
-  # MINGW needs very special handling, because the link order must be exactly -lmingw32 -lSDL2main -lSDL2
-  # for it to work at all (and -mwindows somewhere); a normal SHARED IMPORTED or STATIC IMPORTED library always puts itself first
-  # so handle this like a header-only lib and put everything in INTERFACE_LINK_LIBRARIES
-
-  add_library(SDL2::SDL2 INTERFACE IMPORTED)
-  set_target_properties(SDL2::SDL2 PROPERTIES
-    INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIRS}"
-    INTERFACE_LINK_LIBRARIES "-L${SDL2_LIBDIR} -lSDL2")
-
-  add_library(SDL2::SDL2main INTERFACE IMPORTED)
-  set_target_properties(SDL2::SDL2main PROPERTIES
-    INTERFACE_LINK_LIBRARIES "-L${SDL2_LIBDIR} -lmingw32 -lSDL2main -mwindows")
-
-else() # (not WIN32) or MSVC
-
-  add_library(SDL2::SDL2 SHARED IMPORTED)
-  set_target_properties(SDL2::SDL2 PROPERTIES
-    INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIRS}"
-    IMPORTED_LINK_INTERFACE_LANGUAGES "C"
-    IMPORTED_LOCATION "${SDL2_LIBDIR}/${CMAKE_SHARED_LIBRARY_PREFIX}SDL2${CMAKE_SHARED_LIBRARY_SUFFIX}")
-
-  if(MSVC)
-    # This file is generated when building SDL2 with autotools and MinGW, and MinGW/dlltool
-    # isn't able to generate .lib files that are usable by recent MSVC versions 
-    # (something about "module unsafe for SAFESEH"; SAFESEH is enabled by default in MSVC).
-    # The .lib file for SDL2.dll *could* be generated with `gendef SDL2.dll` and then
-    # `lib.exe /machine:x86 /def:SDL2.def /out:SDL2.lib` (or /machine:amd64)
-    # but that requires lib.exe from a Visual Studio installation - and that still doesn't
-    # give you a static SDL2main.lib with SAFESEH support that you'll need (unless you don't use SDL2main)
-    # Note that when building SDL2 with CMake and MSVC, the result works with both MinGW and MSVC.
-
-    message(FATAL_ERROR, "This build of libSDL2 only supports MinGW, not MSVC (Visual C++), because it lacks .lib files!")
-    # MSVC needs SDL2.lib set as IMPORTED_IMPLIB to link against (comment out message() call above if you added SDL2.lib yourself)
-    set_target_properties(SDL2::SDL2 PROPERTIES IMPORTED_IMPLIB "${SDL2_LIBDIR}/SDL2.lib")
-  else()
-    # this mustn't be set for MSVC, so do it here in an extra call here
-    set_target_properties(SDL2::SDL2 PROPERTIES INTERFACE_LINK_LIBRARIES  "${SDL2_EXTRA_LINK_FLAGS}")
-  endif()
-
-  add_library(SDL2::SDL2main STATIC IMPORTED)
-  set_target_properties(SDL2::SDL2main PROPERTIES
-    IMPORTED_LINK_INTERFACE_LANGUAGES "C"
-    IMPORTED_LOCATION "${SDL2_LIBDIR}/${CMAKE_STATIC_LIBRARY_PREFIX}SDL2main${CMAKE_STATIC_LIBRARY_SUFFIX}")
-
-endif() # (not WIN32) or MSVC
-
-  add_library(SDL2::SDL2-static STATIC IMPORTED)
-  set_target_properties(SDL2::SDL2-static PROPERTIES
-    INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIRS}"
-    IMPORTED_LINK_INTERFACE_LANGUAGES "C"
-    IMPORTED_LOCATION "${SDL2_LIBDIR}/${CMAKE_STATIC_LIBRARY_PREFIX}SDL2${CMAKE_STATIC_LIBRARY_SUFFIX}"
-    INTERFACE_LINK_LIBRARIES "${SDL2_EXTRA_LINK_FLAGS_STATIC}")
-
-endif() # NOT TARGET SDL2::SDL2
