-# signbit.m4 serial 10
+# signbit.m4 serial 11
dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
gl_LONG_DOUBLE_SIGN_LOCATION
if test "$gl_cv_cc_float_signbit" = unknown; then
dnl Test whether copysignf() is declared.
- AC_CHECK_DECLS([copysignf], , , [#include <math.h>])
+ AC_CHECK_DECLS([copysignf], , , [[#include <math.h>]])
if test "$ac_cv_have_decl_copysignf" = yes; then
dnl Test whether copysignf() can be used without libm.
AC_CACHE_CHECK([whether copysignf can be used without linking with libm],
fi
if test "$gl_cv_cc_double_signbit" = unknown; then
dnl Test whether copysign() is declared.
- AC_CHECK_DECLS([copysign], , , [#include <math.h>])
+ AC_CHECK_DECLS([copysign], , , [[#include <math.h>]])
if test "$ac_cv_have_decl_copysign" = yes; then
dnl Test whether copysign() can be used without libm.
AC_CACHE_CHECK([whether copysign can be used without linking with libm],
fi
if test "$gl_cv_cc_long_double_signbit" = unknown; then
dnl Test whether copysignl() is declared.
- AC_CHECK_DECLS([copysignl], , , [#include <math.h>])
+ AC_CHECK_DECLS([copysignl], , , [[#include <math.h>]])
if test "$ac_cv_have_decl_copysignl" = yes; then
dnl Test whether copysignl() can be used without libm.
AC_CACHE_CHECK([whether copysignl can be used without linking with libm],