grub/m4/dos.m4
Yves Blusseau 15c6926126 Use gnulib-tool to create gnulib source files.
* Add gnulib files generated by gnulib-tool in build-aux, m4 and
    grub-core/gnulib directories
    * .bzignore: Add **/.deps and autogenerated gnulib files
    * configure.ac: Assign auxiliary directory to build-aux, add invocation
    of gnulib macros, add grub-core/gnulib/Makefile
    * Makefile.am: Add gnulib directory in SUBDIRS (removing unnecessary .),
    include m4 directory to aclocal.
    * Makefile.util.def: Remove direct compilation of gnulib source files
    and use the new grub-core/gnulib/libgnu.a.
    * build-aux/config.rpath: move config.rpath from top directory to
    build-aux
    * conf/Makefile.common: Remove the macro _GL_UNUSED already defined
    in gnulib headers
    * conf/Makefile.extra-dist: Add m4/gnulib-cache.m4
    * grub-core/Makefile.core.def: Remove unnecessary extra_dist
    * grub-core/lib/posix_wrap/localcharset.h (locale_charset): Update
    header.
    * grub-core/lib/posix_wrap/langinfo.h (nl_langinfo): Return static
    string.
2010-09-20 12:35:33 +02:00

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#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([gl_AC_DOS],
[
AC_CACHE_CHECK([whether system is Windows or MSDOS], [ac_cv_win_or_dos],
[
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
#if !defined _WIN32 && !defined __WIN32__ && !defined __MSDOS__ && !defined __CYGWIN__
neither MSDOS nor Windows
#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
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 FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR
# define ISSLASH(C) ((C) == '/' || (C) == '\\')
#else
# define ISSLASH(C) ((C) == '/')
#endif])
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.])
])