annotate src/libsndfile-1.0.27/M4/lrint.m4 @ 83:ae30d91d2ffe
Replace these with versions built using an older toolset (so as to avoid ABI compatibilities when linking on Ubuntu 14.04 for packaging purposes)
| author |
Chris Cannam |
| date |
Fri, 07 Feb 2020 11:51:13 +0000 |
| parents |
1df64224f5ac |
| children |
|
| rev |
line source |
|
Chris@40
|
1 dnl @synopsis MN_C99_FUNC_LRINT
|
|
Chris@40
|
2 dnl
|
|
Chris@40
|
3 dnl Check whether C99's lrint function is available.
|
|
Chris@40
|
4 dnl @version 1.3 Feb 12 2002
|
|
Chris@40
|
5 dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
|
|
Chris@40
|
6 dnl
|
|
Chris@40
|
7 dnl Permission to use, copy, modify, distribute, and sell this file for any
|
|
Chris@40
|
8 dnl purpose is hereby granted without fee, provided that the above copyright
|
|
Chris@40
|
9 dnl and this permission notice appear in all copies. No representations are
|
|
Chris@40
|
10 dnl made about the suitability of this software for any purpose. It is
|
|
Chris@40
|
11 dnl provided "as is" without express or implied warranty.
|
|
Chris@40
|
12 dnl
|
|
Chris@40
|
13 AC_DEFUN([MN_C99_FUNC_LRINT],
|
|
Chris@40
|
14 [AC_CACHE_CHECK(for lrint,
|
|
Chris@40
|
15 ac_cv_c99_lrint,
|
|
Chris@40
|
16 [
|
|
Chris@40
|
17 lrint_save_CFLAGS=$CFLAGS
|
|
Chris@40
|
18 CFLAGS="-lm"
|
|
Chris@40
|
19 AC_TRY_LINK([
|
|
Chris@40
|
20 #define _ISOC9X_SOURCE 1
|
|
Chris@40
|
21 #define _ISOC99_SOURCE 1
|
|
Chris@40
|
22 #define __USE_ISOC99 1
|
|
Chris@40
|
23 #define __USE_ISOC9X 1
|
|
Chris@40
|
24
|
|
Chris@40
|
25 #include <math.h>
|
|
Chris@40
|
26 ], if (!lrint(3.14159)) lrint(2.7183);, ac_cv_c99_lrint=yes, ac_cv_c99_lrint=no)
|
|
Chris@40
|
27
|
|
Chris@40
|
28 CFLAGS=$lrint_save_CFLAGS
|
|
Chris@40
|
29
|
|
Chris@40
|
30 ])
|
|
Chris@40
|
31
|
|
Chris@40
|
32 if test "$ac_cv_c99_lrint" = yes; then
|
|
Chris@40
|
33 AC_DEFINE(HAVE_LRINT, 1,
|
|
Chris@40
|
34 [Define if you have C99's lrint function.])
|
|
Chris@40
|
35 fi
|
|
Chris@40
|
36 ])# MN_C99_FUNC_LRINT
|
|
Chris@40
|
37
|
