look if round function exist in math.h & define HAVE_ROUND. patch by Steven M. Schultz <sms@2BSD.COM>

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15394 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 16 insertions, 0 deletions

diff --git a/configure b/configure
index 3b28ee9227..0c23ccc56e 100755
--- a/configure
+++ b/configure
@@ -2410,6 +2410,19 @@ else
 fi
 echores "$_lrintf"
 
+echocheck "round"
+cat > $TMPC << EOF
+#include <math.h>
+int main(void) { (void) round(0.0); return 0; }
+EOF
+_round=no
+cc_check $_ld_lm && _round=yes
+if test "$_round" = yes ; then
+  _def_round="#define HAVE_ROUND 1"
+else
+  _def_round="#undef HAVE_ROUND"
+fi
+echores "$_round"
 
 echocheck "nanosleep"
 # also check for nanosleep
@@ -7406,6 +7419,9 @@ $_def_vcd
 /* C99 lrintf function available */
 $_def_lrintf
 
+/* round function is available */
+$_def_round
+
 /* yes, we have inttypes.h */
 #define HAVE_INTTYPES_H 1