acinclude/ac_check_define.m4
author Sam Lantinga
Mon, 14 Aug 2017 13:37:14 -0700
changeset 11289 ca3c2c98f2e1
parent 6491 03b7e6b0a8bf
child 14038 2c13b7ca1997
permissions -rw-r--r--
Fixed bug 2441 - SDL_DuplicateSurface


Rainer Deyke

I've written a small patch that adds a small SDL_DuplicateSurface function to SDL. I've written the function as part of a larger (as yet unfinished) patch, but I think this function is useful enough that it merits inclusion in SDL on its own.
     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])