# pathmax.m4 serial 11

dnl Copyright (C) 2002-2003, 2005-2006, 2009-2020 Free Software Foundation,

dnl 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_PATHMAX],

[

  dnl Prerequisites of lib/pathmax.h.

  AC_CHECK_HEADERS_ONCE([sys/param.h])

])

# Expands to a piece of C program that defines PATH_MAX in the same way as

# "pathmax.h" will do.

AC_DEFUN([gl_PATHMAX_SNIPPET], [[

/* Arrange to define PATH_MAX, like "pathmax.h" does. */

#if HAVE_UNISTD_H

# include <unistd.h>

#endif

#include <limits.h>

#if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN

# include <sys/param.h>

#endif

#if !defined PATH_MAX && defined MAXPATHLEN

# define PATH_MAX MAXPATHLEN

#endif

#ifdef __hpux

# undef PATH_MAX

# define PATH_MAX 1024

#endif

#if defined _WIN32 && ! defined __CYGWIN__

# undef PATH_MAX

# define PATH_MAX 260

#endif

]])

# Prerequisites of gl_PATHMAX_SNIPPET.

AC_DEFUN([gl_PATHMAX_SNIPPET_PREREQ],

[

  AC_CHECK_HEADERS_ONCE([unistd.h sys/param.h])

])