dnl VKD3D_CHECK_FUNC
AC_DEFUN([VKD3D_CHECK_FUNC],
[AC_MSG_CHECKING([for $2])
AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) { return [$3]; }])],
[AC_MSG_RESULT([yes])
AC_DEFINE([$1],
[1],
[Define to 1 if you have $2.])],
[AC_MSG_RESULT([no])])])