1# sys_types_h.m4 serial 6 2dnl Copyright (C) 2011-2017 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7AC_DEFUN_ONCE([gl_SYS_TYPES_H], 8[ 9 AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS]) 10 gl_NEXT_HEADERS([sys/types.h]) 11 12 dnl Ensure the type pid_t gets defined. 13 AC_REQUIRE([AC_TYPE_PID_T]) 14 15 dnl Ensure the type mode_t gets defined. 16 AC_REQUIRE([AC_TYPE_MODE_T]) 17 18 dnl Whether to override the 'off_t' type. 19 AC_REQUIRE([gl_TYPE_OFF_T]) 20]) 21 22AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS], 23[ 24]) 25 26# This works around a buggy version in autoconf <= 2.69. 27# See <https://lists.gnu.org/archive/html/autoconf/2016-08/msg00014.html> 28 29m4_version_prereq([2.70], [], [ 30 31# This is taken from the following Autoconf patch: 32# http://git.sv.gnu.org/cgit/autoconf.git/commit/?id=e17a30e98 33 34m4_undefine([AC_HEADER_MAJOR]) 35AC_DEFUN([AC_HEADER_MAJOR], 36[AC_CHECK_HEADERS_ONCE([sys/types.h]) 37AC_CHECK_HEADER([sys/mkdev.h], 38 [AC_DEFINE([MAJOR_IN_MKDEV], [1], 39 [Define to 1 if `major', `minor', and `makedev' are declared in 40 <mkdev.h>.])]) 41if test $ac_cv_header_sys_mkdev_h = no; then 42 AC_CHECK_HEADER([sys/sysmacros.h], 43 [AC_DEFINE([MAJOR_IN_SYSMACROS], [1], 44 [Define to 1 if `major', `minor', and `makedev' are declared in 45 <sysmacros.h>.])]) 46fi 47]) 48 49]) 50