acinclude/ac_check_define.m4
author Ryan C. Gordon
Wed, 22 Apr 2015 16:50:48 -0400
changeset 10018 3c1384edf9fa
parent 6491 03b7e6b0a8bf
child 14038 2c13b7ca1997
permissions -rw-r--r--
x11: Optimize SDL_GetGlobalMouseState() a little.

Use XInput2 to mark the global mouse state as dirty so we don't have to make
a bunch of roundtrips to the X server when nothing has changed.
     1 AC_DEFUN([AC_CHECK_DEFINE],[dnl
     2   AC_CACHE_CHECK(for $1 in $2, ac_cv_define_$1,
     3     AC_EGREP_CPP([YES_IS_DEFINED], [
     4 #include <$2>
     5 #ifdef $1
     6 YES_IS_DEFINED
     7 #endif
     8     ], ac_cv_define_$1=yes, ac_cv_define_$1=no)
     9   )
    10   if test "$ac_cv_define_$1" = "yes" ; then
    11     AC_DEFINE([HAVE_$1],[],[Added by AC_CHECK_DEFINE])
    12   fi
    13 ])dnl
    14 AC_DEFINE([HAVE_$1],[],[Added by AC_CHECK_DEFINE])