X-Git-Url: https://git.cworth.org/git?p=tar;a=blobdiff_plain;f=m4%2Fdos.m4;h=5660542be880a2f714e971adcfbf05c1b4c81168;hp=dd59571c0b06c62a66d75c04f50e6225cb2923b0;hb=22f1eb8bc17e5be72dd23d42d6aaa60196ac22e6;hpb=00fa13ff3f2d5b6e2a94c5e948c38616ff7ad37a

diff --git a/m4/dos.m4 b/m4/dos.m4
index dd59571..5660542 100644
--- a/m4/dos.m4
+++ b/m4/dos.m4
@@ -1,9 +1,9 @@
-#serial 10   -*- autoconf -*-
+#serial 11   -*- autoconf -*-
 
 # Define some macros required for proper operation of code in lib/*.c
 # on MSDOS/Windows systems.
 
-# Copyright (C) 2000, 2001, 2004, 2005, 2006 Free Software Foundation, Inc.
+# 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.
@@ -14,31 +14,31 @@ 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__ && !defined __CYGWIN__
+        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])
+#endif]])],
+        [ac_cv_win_or_dos=yes],
+        [ac_cv_win_or_dos=no])
       ])
 
     if test x"$ac_cv_win_or_dos" = xyes; then
       ac_fs_accepts_drive_letter_prefix=1
       ac_fs_backslash_is_file_name_separator=1
       AC_CACHE_CHECK([whether drive letter can start relative path],
-		     [ac_cv_drive_letter_can_be_relative],
-	[
-	  AC_TRY_COMPILE([],
-	  [#if defined __CYGWIN__
+                     [ac_cv_drive_letter_can_be_relative],
+        [
+          AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
+#if defined __CYGWIN__
 drive letters are always absolute
-#endif],
-	  [ac_cv_drive_letter_can_be_relative=yes],
-	  [ac_cv_drive_letter_can_be_relative=no])
-	])
+#endif]])],
+          [ac_cv_drive_letter_can_be_relative=yes],
+          [ac_cv_drive_letter_can_be_relative=no])
+        ])
       if test x"$ac_cv_drive_letter_can_be_relative" = xyes; then
-	ac_fs_drive_letter_can_be_relative=1
+        ac_fs_drive_letter_can_be_relative=1
       else
-	ac_fs_drive_letter_can_be_relative=0
+        ac_fs_drive_letter_can_be_relative=0
       fi
     else
       ac_fs_accepts_drive_letter_prefix=0