Simple Directmedia Layer
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Sam Lantinga 42c5b4acde Fixed bug 5366 - cmake build doesn't detect Metal on macOS
Tom Seddon

2nd time lucky, perhaps. patch 2 applies to current HEAD at time of writing - 4eb049c9bb1ca94efe3c40b57beda3169984d0cb from https://github.com/SDL-mirror/SDL.

This basically goes back to what was there originally, but now manually adding "-x objective-c" to the clang command line rather than "-ObjC". clang is then invoked without the "-x c" that was causing the problem, the snippet builds, and Metal is detected. (I had a quick trawl through the cmake code, but I couldn't see where this is handled.)

I was moved to try this after finding SDL's own CHECK_OBJC_SOURCE_COMPILES macro, and noting what it does: 4eb049c9bb/cmake/macros.cmake (L67)

An alternative fix of course would be to use CHECK_OBJC_SOURCE_COMPILES instead of cmake's check_objc_source_compiles - but that had the same problem of getting confused by "return 0;". (Maybe that's because it's a macro? I'll defer to a cmake expert on this one.)

I decided in the end to err on the side of leaving things looking basically the same as they were before my first patch.
2020-12-09 06:17:55 -08:00
VisualC fix bug #5384 -- define DLL_EXPORT in DLL builds and adjust begin_code.h 2020-12-09 12:01:10 +03:00
VisualC-WinRT fix bug #5384 -- define DLL_EXPORT in DLL builds and adjust begin_code.h 2020-12-09 12:01:10 +03:00
Xcode CMakeLists.txt: sync DYLIB_CURRENT_VERSION to Xcode project 2020-12-09 12:03:24 +03:00
Xcode-iOS Added weak linking to hidapi framework 2020-11-17 10:29:36 -08:00
acinclude ac_check_define.m4: remove stray AC_DEFINE outside of the macro definition 2020-09-16 22:20:02 +03:00
android-project Android: keep compatibility with older JDK 2020-10-28 14:03:05 +01:00
android-project-ant Added the old ant Android build project structure 2017-10-28 12:11:25 -07:00
build-scripts Updated SDL to 2.0.14 in preparation for release candidate 2020-12-08 18:56:06 -08:00
cmake cmake: Set HAVE_VIDEO_WAYLAND_QT_TOUCH if appropriate (thanks, Michael!). 2020-04-14 18:14:39 -04:00
debian Updated SDL to 2.0.14 in preparation for release candidate 2020-12-08 18:56:06 -08:00
docs added documentation docs/README-os2.md (based on original readme.os2). 2020-10-14 23:01:06 +03:00
include fix bug #5384 -- define DLL_EXPORT in DLL builds and adjust begin_code.h 2020-12-09 12:01:10 +03:00
src Fixed bug 5329 - SDL_SetWindowGrab(SDL_FALSE) fails to unlock cursor if window is partially offscreen 2020-12-08 22:00:06 -08:00
test Allow background input when testing game controllers 2020-12-04 15:47:28 -08:00
visualtest test: unify all the command line usage logging. 2019-05-28 17:39:13 -04:00
wayland-protocols wayland: ask xdg-decoration protocol extension to use server-side decorations if possible. 2018-11-04 21:08:40 +01:00
.hgignore Fixed bug 4965 - Update the .hgignore file 2020-02-03 16:38:07 -08:00
Android.mk minor whitespace fix 2020-10-09 03:28:30 +03:00
BUGS.txt BUGS.txt: Changed mailing list link to discourse.libsdl.org. 2017-04-01 00:05:25 -04:00
CMakeLists.txt Fixed bug 5366 - cmake build doesn't detect Metal on macOS 2020-12-09 06:17:55 -08:00
COPYING.txt Updated copyright date for 2020 2020-01-16 20:49:25 -08:00
CREDITS.txt Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
INSTALL.txt More HTTPS doc tweaks. 2017-02-16 16:59:07 -05:00
Makefile.in Updated iOS tests and demos for latest SDL linking requirements 2020-11-06 13:03:07 -08:00
Makefile.minimal Added a dummy sensor driver 2018-08-21 13:29:21 -07:00
Makefile.os2 Updated SDL to 2.0.14 in preparation for release candidate 2020-12-08 18:56:06 -08:00
Makefile.pandora Added a dummy sensor driver 2018-08-21 13:29:21 -07:00
Makefile.psp added SDL_strtokr() as a replacement for POSIX strtok_r (bug #4046.) 2019-11-20 20:40:50 +03:00
Makefile.wiz Added a dummy sensor driver 2018-08-21 13:29:21 -07:00
README-SDL.txt More HTTPS changes in the documentation. 2017-02-16 16:52:03 -05:00
README.txt readme: correct webpage URL to use HTTPS. 2017-02-16 13:30:34 -05:00
SDL2.spec.in Fixed bug 4615 - RPM Build fails due to unpackaged files 2019-06-11 19:58:10 -07:00
SDL2Config.cmake Fixed bug 3651 - CMake build does not install CMake package configuration 2017-08-09 19:03:10 -07:00
TODO.txt Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
VisualC.html Fixed two typos in documentation. 2016-01-12 22:23:53 +01:00
WhatsNew.txt Updated SDL to 2.0.14 in preparation for release candidate 2020-12-08 18:56:06 -08:00
autogen.sh Don't use pushd/popd in autogen.sh; Ubuntu's /bin/sh doesn't support it. 2016-12-26 22:58:58 -05:00
cmake_uninstall.cmake.in Fixed bug 3867 - Can't find install_manifest.txt when running 'uninstall' target 2017-10-12 08:44:45 -07:00
configure Updated SDL to 2.0.14 in preparation for release candidate 2020-12-08 18:56:06 -08:00
configure.ac Updated SDL to 2.0.14 in preparation for release candidate 2020-12-08 18:56:06 -08:00
sdl2-config-version.cmake.in cmake: Forgot to add this file to revision control. 2020-02-25 14:52:03 -05:00
sdl2-config.cmake.in build: Merge pkg-config Libs.private into Libs for static-only builds 2020-04-11 23:38:34 +01:00
sdl2-config.in build: Don't duplicate Libs in Libs.private in pkg-config file 2020-04-12 13:24:36 +01:00
sdl2.m4 Fixed bug 4544 - SDL2.m4 SDL2.framework patch made it impossible to fail detection 2019-03-16 18:45:10 -07:00
sdl2.pc.in build: Merge pkg-config Libs.private into Libs for static-only builds 2020-04-11 23:38:34 +01:00

README.txt

                         Simple DirectMedia Layer

                                  (SDL)

                                Version 2.0

---
https://www.libsdl.org/

Simple DirectMedia Layer is a cross-platform development library designed
to provide low level access to audio, keyboard, mouse, joystick, and graphics
hardware via OpenGL and Direct3D. It is used by video playback software,
emulators, and popular games including Valve's award winning catalog
and many Humble Bundle games.

More extensive documentation is available in the docs directory, starting
with README.md

Enjoy!
	Sam Lantinga				(slouken@libsdl.org)