@@ -1273,10 +1273,16 @@ if not get_option('sdl').auto() or have_system
sdl_image = not_found
endif
if sdl.found()
- # work around 2.0.8 bug
- sdl = declare_dependency(compile_args: '-Wno-undef',
- dependencies: sdl,
- version: sdl.version())
+ # Some versions of SDL have problems with -Wundef
+ if not cc.compiles('''
+ #include <SDL.h>
+ #include <SDL_syswm.h>
+ int main(int argc, char *argv[]) { return 0; }
+ ''', dependencies: sdl, args: '-Werror=undef')
+ sdl = declare_dependency(compile_args: '-Wno-undef',
+ dependencies: sdl,
+ version: sdl.version())
+ endif
sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
method: 'pkg-config')
else
There is no need to disable this useful compiler warning for all versions of the SDL. Unfortunately, various versions are buggy (beside SDL 2.0.8, the version 2.26.0 and 2.26.1 are broken, too, see https://github.com/libsdl-org/SDL/issues/6619 ), but we can use a simple compiler check to see whether we need the -Wno-undef or not. This also enables the printing of the version number with good versions of the SDL in the summary of the meson output again. Signed-off-by: Thomas Huth <thuth@redhat.com> --- v3: Use -Werror to make sure that compiler fails when there is an issue meson.build | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-)