-# unistd_h.m4 serial 37
+# unistd_h.m4 serial 41
dnl Copyright (C) 2006-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl Use AC_REQUIRE here, so that the default behavior below is expanded
dnl once only, before all statements that occur in other macros.
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+ AC_REQUIRE([AC_C_INLINE])
gl_CHECK_NEXT_HEADERS([unistd.h])
HAVE_UNISTD_H=0
fi
AC_SUBST([HAVE_UNISTD_H])
+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use.
+ gl_WARN_ON_USE_PREPARE([[#include <unistd.h>
+/* Some systems declare various items in the wrong headers. */
+#ifndef __GLIBC__
+# include <fcntl.h>
+# include <stdio.h>
+# include <stdlib.h>
+# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+# include <io.h>
+# endif
+#endif
+ ]], [chown dup2 dup3 environ euidaccess faccessat fchdir fchownat
+ fsync ftruncate getcwd getdomainname getdtablesize getgroups
+ gethostname getlogin getlogin_r getpagesize getusershell setusershell
+ endusershell lchown link linkat lseek pipe2 pread readlink readlinkat
+ rmdir sleep symlink symlinkat unlink unlinkat usleep])
])
AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+ dnl Define it also as a C macro, for the benefit of the unit tests.
+ gl_MODULE_INDICATOR([$1])
])
AC_DEFUN([gl_UNISTD_H_DEFAULTS],
HAVE_GETHOSTNAME=1; AC_SUBST([HAVE_GETHOSTNAME])
HAVE_GETLOGIN=1; AC_SUBST([HAVE_GETLOGIN])
HAVE_GETPAGESIZE=1; AC_SUBST([HAVE_GETPAGESIZE])
- HAVE_GETUSERSHELL=1; AC_SUBST([HAVE_GETUSERSHELL])
HAVE_LCHOWN=1; AC_SUBST([HAVE_LCHOWN])
HAVE_LINK=1; AC_SUBST([HAVE_LINK])
HAVE_LINKAT=1; AC_SUBST([HAVE_LINKAT])
HAVE_SYMLINKAT=1; AC_SUBST([HAVE_SYMLINKAT])
HAVE_DECL_ENVIRON=1; AC_SUBST([HAVE_DECL_ENVIRON])
HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
+ HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL])
HAVE_OS_H=0; AC_SUBST([HAVE_OS_H])
HAVE_SYS_PARAM_H=0; AC_SUBST([HAVE_SYS_PARAM_H])
HAVE_UNLINKAT=1; AC_SUBST([HAVE_UNLINKAT])