mirror of
https://gitee.com/openharmony/third_party_libsnd
synced 2024-11-30 13:30:32 +00:00
38 lines
1.1 KiB
Plaintext
38 lines
1.1 KiB
Plaintext
dnl @synopsis AC_C99_FUNC_LRINTF
|
|
dnl
|
|
dnl Check whether C99's lrintf function is available.
|
|
dnl @version 1.3 Feb 12 2002
|
|
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,
|
|
[
|
|
lrintf_save_CFLAGS=$CFLAGS
|
|
CFLAGS="-lm"
|
|
AC_TRY_LINK([
|
|
#define _ISOC9X_SOURCE 1
|
|
#define _ISOC99_SOURCE 1
|
|
#define __USE_ISOC99 1
|
|
#define __USE_ISOC9X 1
|
|
|
|
#include <math.h>
|
|
], if (!lrintf(3.14159)) lrintf(2.7183);, ac_cv_c99_lrintf=yes, ac_cv_c99_lrintf=no)
|
|
|
|
CFLAGS=$lrintf_save_CFLAGS
|
|
|
|
])
|
|
|
|
if test "$ac_cv_c99_lrintf" = yes; then
|
|
AC_DEFINE(HAVE_LRINTF, 1,
|
|
[Define if you have C99's lrintf function.])
|
|
fi
|
|
])# AC_C99_FUNC_LRINTF
|
|
|