Merge branch 'libsndfile'

[Faustine.git] / interpretor / lib / src / libsndfile-1.0.25 / M4 / lrint.m4

diff --git a/interpretor/lib/src/libsndfile-1.0.25/M4/lrint.m4 b/interpretor/lib/src/libsndfile-1.0.25/M4/lrint.m4
new file mode 100644 (file)
index 0000000..c2c21d6
--- /dev/null
+++ b/interpretor/lib/src/libsndfile-1.0.25/M4/lrint.m4
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+dnl @synopsis MN_C99_FUNC_LRINT
+dnl
+dnl Check whether C99's lrint 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([MN_C99_FUNC_LRINT],
+[AC_CACHE_CHECK(for lrint,
+  ac_cv_c99_lrint,
+[
+lrint_save_CFLAGS=$CFLAGS
+CFLAGS="-lm"
+AC_TRY_LINK([
+#define                _ISOC9X_SOURCE  1
+#define        _ISOC99_SOURCE  1
+#define                __USE_ISOC99    1
+#define        __USE_ISOC9X    1
+
+#include <math.h>
+], if (!lrint(3.14159)) lrint(2.7183);, ac_cv_c99_lrint=yes, ac_cv_c99_lrint=no)
+
+CFLAGS=$lrint_save_CFLAGS
+
+])
+
+if test "$ac_cv_c99_lrint" = yes; then
+  AC_DEFINE(HAVE_LRINT, 1,
+            [Define if you have C99's lrint function.])
+fi
+])# MN_C99_FUNC_LRINT
+