2 dnl Copyright (C) 2006-2007 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.
7 dnl Written by Simon Josefsson, Bruno Haible.
9 AC_DEFUN([gl_UNISTD_H],
11 dnl Use AC_REQUIRE here, so that the default behavior below is expanded
12 dnl once only, before all statements that occur in other macros.
13 AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
15 AC_CHECK_HEADERS_ONCE([unistd.h])
16 if test $ac_cv_header_unistd_h = yes; then
18 gl_ABSOLUTE_HEADER([unistd.h])
19 ABSOLUTE_UNISTD_H=\"$gl_cv_absolute_unistd_h\"
23 AC_SUBST([HAVE_UNISTD_H])
24 AC_SUBST([ABSOLUTE_UNISTD_H])
27 AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
29 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
30 AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
31 GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
34 AC_DEFUN([gl_UNISTD_H_DEFAULTS],
36 GNULIB_CHOWN=0; AC_SUBST([GNULIB_CHOWN])
37 GNULIB_DUP2=0; AC_SUBST([GNULIB_DUP2])
38 GNULIB_FCHDIR=0; AC_SUBST([GNULIB_FCHDIR])
39 GNULIB_FTRUNCATE=0; AC_SUBST([GNULIB_FTRUNCATE])
40 GNULIB_GETCWD=0; AC_SUBST([GNULIB_GETCWD])
41 GNULIB_GETLOGIN_R=0; AC_SUBST([GNULIB_GETLOGIN_R])
42 GNULIB_READLINK=0; AC_SUBST([GNULIB_READLINK])
43 dnl Assume proper GNU behavior unless another module says otherwise.
44 HAVE_DUP2=1; AC_SUBST([HAVE_DUP2])
45 HAVE_FTRUNCATE=1; AC_SUBST([HAVE_FTRUNCATE])
46 HAVE_READLINK=1; AC_SUBST([HAVE_READLINK])
47 HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
48 REPLACE_CHOWN=0; AC_SUBST([REPLACE_CHOWN])
49 REPLACE_FCHDIR=0; AC_SUBST([REPLACE_FCHDIR])
50 REPLACE_GETCWD=0; AC_SUBST([REPLACE_GETCWD])