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emacs/m4/strtoumax.m4
2011-04-21 12:12:13 -07:00

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# strtoumax.m4 serial 8
dnl Copyright (C) 2002-2004, 2006, 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.
AC_DEFUN([gl_FUNC_STRTOUMAX],
[
AC_CACHE_CHECK([whether <inttypes.h> defines strtoumax as a macro],
gl_cv_func_strtoumax_macro,
[AC_EGREP_CPP([inttypes_h_defines_strtoumax], [#include <inttypes.h>
#ifdef strtoumax
inttypes_h_defines_strtoumax
#endif],
gl_cv_func_strtoumax_macro=yes,
gl_cv_func_strtoumax_macro=no)])
if test "$gl_cv_func_strtoumax_macro" != yes; then
AC_REPLACE_FUNCS([strtoumax])
if test $ac_cv_func_strtoumax = no; then
gl_PREREQ_STRTOUMAX
fi
fi
])
# Prerequisites of lib/strtoumax.c.
AC_DEFUN([gl_PREREQ_STRTOUMAX], [
AC_CHECK_DECLS([strtoull])
AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])
])