Olivier Naudan | b28313f | 2012-04-16 08:10:18 -0400 | [diff] [blame] | 1 | # uintmax_t.m4 serial 10 |
| 2 | dnl Copyright (C) 1997-2004, 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. |
| 6 | |
| 7 | dnl From Paul Eggert. |
| 8 | |
| 9 | AC_PREREQ(2.13) |
| 10 | |
| 11 | # Define uintmax_t to 'unsigned long' or 'unsigned long long' |
| 12 | # if it is not already defined in <stdint.h> or <inttypes.h>. |
| 13 | |
| 14 | AC_DEFUN([gl_AC_TYPE_UINTMAX_T], |
| 15 | [ |
| 16 | AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) |
| 17 | AC_REQUIRE([gl_AC_HEADER_STDINT_H]) |
| 18 | if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then |
| 19 | AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT]) |
| 20 | test $ac_cv_type_unsigned_long_long_int = yes \ |
| 21 | && ac_type='unsigned long long' \ |
| 22 | || ac_type='unsigned long' |
| 23 | AC_DEFINE_UNQUOTED(uintmax_t, $ac_type, |
| 24 | [Define to unsigned long or unsigned long long |
| 25 | if <stdint.h> and <inttypes.h> don't define.]) |
| 26 | else |
| 27 | AC_DEFINE(HAVE_UINTMAX_T, 1, |
| 28 | [Define if you have the 'uintmax_t' type in <stdint.h> or <inttypes.h>.]) |
| 29 | fi |
| 30 | ]) |