m4/strtoumax.m4

   1 # strtoumax.m4 serial 8
   2 dnl Copyright (C) 2002-2004, 2006, 2009-2011 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.
   6
   7 AC_DEFUN([gl_FUNC_STRTOUMAX],
   8 [
   9   AC_CACHE_CHECK([whether <inttypes.h> defines strtoumax as a macro],
  10     gl_cv_func_strtoumax_macro,
  11     [AC_EGREP_CPP([inttypes_h_defines_strtoumax], [#include <inttypes.h>
  12 #ifdef strtoumax
  13  inttypes_h_defines_strtoumax
  14 #endif],
  15        gl_cv_func_strtoumax_macro=yes,
  16        gl_cv_func_strtoumax_macro=no)])
  17
  18   if test "$gl_cv_func_strtoumax_macro" != yes; then
  19     AC_REPLACE_FUNCS([strtoumax])
  20     if test $ac_cv_func_strtoumax = no; then
  21       gl_PREREQ_STRTOUMAX
  22     fi
  23   fi
  24 ])
  25
  26 # Prerequisites of lib/strtoumax.c.
  27 AC_DEFUN([gl_PREREQ_STRTOUMAX], [
  28   AC_CHECK_DECLS([strtoull])
  29   AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])
  30 ])