-#serial 5
+#serial 11 -*- autoconf -*-
# Define some macros required for proper operation of code in lib/*.c
# on MSDOS/Windows systems.
+# Copyright (C) 2000-2001, 2004-2006, 2009-2010 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
# From Jim Meyering.
-AC_DEFUN([jm_AC_DOS],
+AC_DEFUN([gl_AC_DOS],
[
AC_CACHE_CHECK([whether system is Windows or MSDOS], [ac_cv_win_or_dos],
[
- AC_TRY_COMPILE([],
- [#if !defined _WIN32 && !defined __WIN32__ && !defined __MSDOS__
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
+#if !defined _WIN32 && !defined __WIN32__ && !defined __MSDOS__ && !defined __CYGWIN__
neither MSDOS nor Windows
-#endif],
+#endif]])],
[ac_cv_win_or_dos=yes],
[ac_cv_win_or_dos=no])
])
if test x"$ac_cv_win_or_dos" = xyes; then
ac_fs_accepts_drive_letter_prefix=1
ac_fs_backslash_is_file_name_separator=1
+ AC_CACHE_CHECK([whether drive letter can start relative path],
+ [ac_cv_drive_letter_can_be_relative],
+ [
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
+#if defined __CYGWIN__
+drive letters are always absolute
+#endif]])],
+ [ac_cv_drive_letter_can_be_relative=yes],
+ [ac_cv_drive_letter_can_be_relative=no])
+ ])
+ if test x"$ac_cv_drive_letter_can_be_relative" = xyes; then
+ ac_fs_drive_letter_can_be_relative=1
+ else
+ ac_fs_drive_letter_can_be_relative=0
+ fi
else
ac_fs_accepts_drive_letter_prefix=0
ac_fs_backslash_is_file_name_separator=0
+ ac_fs_drive_letter_can_be_relative=0
fi
- AH_VERBATIM(FILESYSTEM_PREFIX_LEN,
- [#if FILESYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX
-# define FILESYSTEM_PREFIX_LEN(Filename) \
- ((Filename)[0] && (Filename)[1] == ':' ? 2 : 0)
-#else
-# define FILESYSTEM_PREFIX_LEN(Filename) 0
-#endif])
-
- AC_DEFINE_UNQUOTED([FILESYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX],
+ AC_DEFINE_UNQUOTED([FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX],
$ac_fs_accepts_drive_letter_prefix,
[Define on systems for which file names may have a so-called
`drive letter' prefix, define this to compute the length of that
prefix, including the colon.])
AH_VERBATIM(ISSLASH,
- [#if FILESYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR
+ [#if FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR
# define ISSLASH(C) ((C) == '/' || (C) == '\\')
#else
# define ISSLASH(C) ((C) == '/')
#endif])
- AC_DEFINE_UNQUOTED([FILESYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR],
+ AC_DEFINE_UNQUOTED([FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR],
$ac_fs_backslash_is_file_name_separator,
[Define if the backslash character may also serve as a file name
component separator.])
+
+ AC_DEFINE_UNQUOTED([FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE],
+ $ac_fs_drive_letter_can_be_relative,
+ [Define if a drive letter prefix denotes a relative path if it is
+ not followed by a file name component separator.])
])