mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-13 21:01:14 +00:00
27 lines
980 B
Text
27 lines
980 B
Text
dnl @synopsis AC_C99_FUNC_LRINTF
|
|
dnl
|
|
dnl Check whether C99's lrintf function is available.
|
|
dnl @version 1.1
|
|
dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
|
|
dnl
|
|
dnl Permission to use, copy, modify, distribute, and sell this file for any
|
|
dnl purpose is hereby granted without fee, provided that the above copyright
|
|
dnl and this permission notice appear in all copies. No representations are
|
|
dnl made about the suitability of this software for any purpose. It is
|
|
dnl provided "as is" without express or implied warranty.
|
|
dnl
|
|
AC_DEFUN([AC_C99_FUNC_LRINTF],
|
|
[AC_CACHE_CHECK(for lrintf,
|
|
ac_cv_c99_lrintf,
|
|
[AC_TRY_COMPILE([
|
|
#define _ISOC9X_SOURCE 1
|
|
#define _ISOC99_SOURCE 1
|
|
#define __USE_ISOC99 1
|
|
#define __USE_ISOC9X 1
|
|
#include <math.h>],
|
|
[ int value = lrintf (0.432) ; ], ac_cv_c99_lrintf=yes, ac_cv_c99_lrintf=no)])
|
|
if test $ac_cv_c99_lrintf = yes; then
|
|
AC_DEFINE(HAVE_LRINTF, 1,
|
|
[Define if you have C99's lrintf function.])
|
|
fi
|
|
])# AC_C99_LRINTF
|