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Author SHA1 Message Date
Ozkan Sezer
86191351c0 acinclude & sdl2.m4 updates: 
- acinclude/alsa.m4, esd.m4: Ran through autoupdate to replace several
  AC_TRY_[COMPILE|LINK|RUN] with corresponding AC_???_IFELSE , so that
  autoconf-2.70 doesn't warn.
- sdl2.m4: Ditto.
- test/acinclude.m4 (sdl2): Ditto.
 2020-12-22 17:00:28 +03:00
Ozkan Sezer
44d4a61d92 minor cleanups to configure.ac to reduce autoconf-2.70 warnings a bit. 
configure output is practically unchanged. there are still lots of
AC_TRY_COMPILE/AC_TRY_LINK replacements needed to really eliminate
the warnings, but that's for another time.
 2020-12-14 08:11:40 +03:00
Philipp Wiesemann
0e45984fa0 Fixed crash if initialization of EGL failed but was tried again later. 
The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly
uninitialized data structure if loading the library first failed. A later try to
use EGL then skipped initialization and assumed it was previously successful
because the data structure now already existed. This led to at least one crash
in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was
dereferenced to make a call to eglBindAPI().
 2015-06-21 17:33:46 +02:00