-# round.m4 serial 10
-dnl Copyright (C) 2007, 2009-2010 Free Software Foundation, Inc.
+# round.m4 serial 12
+dnl Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
#include <math.h>
]gl_DOUBLE_MINUS_ZERO_CODE[
]gl_DOUBLE_SIGNBIT_CODE[
-int main()
+static double dummy (double f) { return 0; }
+int main (int argc, char *argv[])
{
+ double (*my_round) (double) = argc ? round : dummy;
/* Test whether round (-0.0) is -0.0. */
- if (signbitd (minus_zerod) && !signbitd (round (minus_zerod)))
+ if (signbitd (minus_zerod) && !signbitd (my_round (minus_zerod)))
return 1;
return 0;
}
HAVE_DECL_ROUND=0
fi
if test $HAVE_DECL_ROUND = 0 || test $REPLACE_ROUND = 1; then
- AC_LIBOBJ([round])
+ dnl Find libraries needed to link lib/round.c.
gl_FUNC_FLOOR_LIBS
gl_FUNC_CEIL_LIBS
ROUND_LIBM=