-# printf-frexp.m4 serial 3
-dnl Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+# printf-frexp.m4 serial 5
+dnl Copyright (C) 2007, 2009-2012 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.
AC_DEFUN([gl_FUNC_PRINTF_FREXP],
[
- AC_CACHE_CHECK([whether frexp can be used without linking with libm],
- [gl_cv_func_frexp_no_libm],
- [
- AC_TRY_LINK([#include <math.h>
- double x;
- int y;],
- [return frexp (x, &y) < 1;],
- [gl_cv_func_frexp_no_libm=yes],
- [gl_cv_func_frexp_no_libm=no])
- ])
+ AC_REQUIRE([gl_CHECK_FREXP_NO_LIBM])
if test $gl_cv_func_frexp_no_libm = yes; then
gl_FUNC_FREXP_WORKS
case "$gl_cv_func_frexp_works" in
AC_CACHE_CHECK([whether ldexp can be used without linking with libm],
[gl_cv_func_ldexp_no_libm],
[
- AC_TRY_LINK([#include <math.h>
- double x;
- int y;],
- [return ldexp (x, y) < 1;],
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <math.h>
+ double x;
+ int y;]],
+ [[return ldexp (x, y) < 1;]])],
[gl_cv_func_ldexp_no_libm=yes],
[gl_cv_func_ldexp_no_libm=no])
])