2 dnl Copyright (C) 2007 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_FUNC_ROUND],
9 AC_REQUIRE([gl_MATH_H_DEFAULTS])
10 dnl Persuade glibc <math.h> to declare round().
11 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
12 gl_CHECK_LIBM_FUNC([round], [x = round(x);], [], [
13 AC_REQUIRE([gl_FUNC_FLOOR])
14 ROUND_LIBM=$FLOOR_LIBM
15 AC_LIBOBJ([round])])])