Mercurial > hg > sv-dependency-builds
annotate src/libsndfile-1.0.25/M4/llrint.m4 @ 169:223a55898ab9 tip default
Add null config files
| author | Chris Cannam <cannam@all-day-breakfast.com> |
|---|---|
| date | Mon, 02 Mar 2020 14:03:47 +0000 |
| parents | 545efbb81310 |
| children |
| rev | line source |
|---|---|
| cannam@85 | 1 dnl @synopsis MN_C99_FUNC_LLRINT |
| cannam@85 | 2 dnl |
| cannam@85 | 3 dnl Check whether C99's llrint function is available. |
| cannam@85 | 4 dnl @version 1.1 Sep 30 2002 |
| cannam@85 | 5 dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com> |
| cannam@85 | 6 dnl |
| cannam@85 | 7 dnl Permission to use, copy, modify, distribute, and sell this file for any |
| cannam@85 | 8 dnl purpose is hereby granted without fee, provided that the above copyright |
| cannam@85 | 9 dnl and this permission notice appear in all copies. No representations are |
| cannam@85 | 10 dnl made about the suitability of this software for any purpose. It is |
| cannam@85 | 11 dnl provided "as is" without express or implied warranty. |
| cannam@85 | 12 dnl |
| cannam@85 | 13 AC_DEFUN([MN_C99_FUNC_LLRINT], |
| cannam@85 | 14 [AC_CACHE_CHECK(for llrint, |
| cannam@85 | 15 ac_cv_c99_llrint, |
| cannam@85 | 16 [ |
| cannam@85 | 17 llrint_save_CFLAGS=$CFLAGS |
| cannam@85 | 18 CFLAGS="-lm" |
| cannam@85 | 19 AC_TRY_LINK([ |
| cannam@85 | 20 #define _ISOC9X_SOURCE 1 |
| cannam@85 | 21 #define _ISOC99_SOURCE 1 |
| cannam@85 | 22 #define __USE_ISOC99 1 |
| cannam@85 | 23 #define __USE_ISOC9X 1 |
| cannam@85 | 24 |
| cannam@85 | 25 #include <math.h> |
| cannam@85 | 26 #include <stdint.h> |
| cannam@85 | 27 ], int64_t x ; x = llrint(3.14159) ;, ac_cv_c99_llrint=yes, ac_cv_c99_llrint=no) |
| cannam@85 | 28 |
| cannam@85 | 29 CFLAGS=$llrint_save_CFLAGS |
| cannam@85 | 30 |
| cannam@85 | 31 ]) |
| cannam@85 | 32 |
| cannam@85 | 33 if test "$ac_cv_c99_llrint" = yes; then |
| cannam@85 | 34 AC_DEFINE(HAVE_LLRINT, 1, |
| cannam@85 | 35 [Define if you have C99's llrint function.]) |
| cannam@85 | 36 fi |
| cannam@85 | 37 ])# MN_C99_FUNC_LLRINT |
| cannam@85 | 38 |