common/autoconf/basics_windows.m4 - edge/openjdk - Git at Google

 #
 # Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License version 2 only, as
 # published by the Free Software Foundation.  Oracle designates this
 # particular file as subject to the "Classpath" exception as provided
 # by Oracle in the LICENSE file that accompanied this code.
 #
 # This code is distributed in the hope that it will be useful, but WITHOUT
 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 # version 2 for more details (a copy is included in the LICENSE file that
 # accompanied this code).
 #
 # You should have received a copy of the GNU General Public License version
 # 2 along with this work; if not, write to the Free Software Foundation,
 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 #
 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #

 AC_DEFUN([BASIC_WINDOWS_REWRITE_AS_UNIX_PATH],
 [
   windows_path="[$]$1"
   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
     unix_path=`$CYGPATH -u "$windows_path"`
     $1="$unix_path"
   elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
     unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
     $1="$unix_path"
   fi
 ])

 AC_DEFUN([BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH],
 [
   unix_path="[$]$1"
   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
     windows_path=`$CYGPATH -m "$unix_path"`
     $1="$windows_path"
   elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
     windows_path=`cmd //c echo $unix_path`
     $1="$windows_path"
   fi
 ])

 # Helper function which possibly converts a path using DOS-style short mode.
 # If so, the updated path is stored in $new_path.
 # $1: The path to check
 AC_DEFUN([BASIC_MAKE_WINDOWS_SPACE_SAFE_CYGWIN],
 [
   input_path="$1"
   # Check if we need to convert this using DOS-style short mode. If the path
   # contains just simple characters, use it. Otherwise (spaces, weird characters),
   # take no chances and rewrite it.
   # Note: m4 eats our [], so we need to use @<:@ and @:>@ instead.
   has_forbidden_chars=`$ECHO "$input_path" | $GREP @<:@^-._/a-zA-Z0-9@:>@`
   if test "x$has_forbidden_chars" != x; then
     # Now convert it to mixed DOS-style, short mode (no spaces, and / instead of \)
     shortmode_path=`$CYGPATH -s -m -a "$input_path"`
     path_after_shortmode=`$CYGPATH -u "$shortmode_path"`
     if test "x$path_after_shortmode" != "x$input_to_shortpath"; then
       # Going to short mode and back again did indeed matter. Since short mode is
       # case insensitive, let's make it lowercase to improve readability.
       shortmode_path=`$ECHO "$shortmode_path" | $TR 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
       # Now convert it back to Unix-stile (cygpath)
       input_path=`$CYGPATH -u "$shortmode_path"`
       new_path="$input_path"
     fi
   fi

   test_cygdrive_prefix=`$ECHO $input_path | $GREP ^/cygdrive/`
   if test "x$test_cygdrive_prefix" = x; then
     # As a simple fix, exclude /usr/bin since it's not a real path.
     if test "x`$ECHO $1 | $GREP ^/usr/bin/`" = x; then
       # The path is in a Cygwin special directory (e.g. /home). We need this converted to
       # a path prefixed by /cygdrive for fixpath to work.
       new_path="$CYGWIN_ROOT_PATH$input_path"
     fi
   fi
 ])

 # Helper function which possibly converts a path using DOS-style short mode.
 # If so, the updated path is stored in $new_path.
 # $1: The path to check
 AC_DEFUN([BASIC_MAKE_WINDOWS_SPACE_SAFE_MSYS],
 [
   input_path="$1"
   # Check if we need to convert this using DOS-style short mode. If the path
   # contains just simple characters, use it. Otherwise (spaces, weird characters),
   # take no chances and rewrite it.
   # Note: m4 eats our [], so we need to use @<:@ and @:>@ instead.
   has_forbidden_chars=`$ECHO "$input_path" | $GREP @<:@^-_/:a-zA-Z0-9@:>@`
   if test "x$has_forbidden_chars" != x; then
     # Now convert it to mixed DOS-style, short mode (no spaces, and / instead of \)
     new_path=`cmd /c "for %A in (\"$input_path\") do @echo %~sA"|$TR \\\\\\\\ / | $TR 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
   fi
 ])

 # FIXME: The BASIC_FIXUP_*_CYGWIN/MSYS is most likely too convoluted
 # and could probably be heavily simplified. However, all changes in this
 # area tend to need lot of testing in different scenarios, and in lack of
 # proper unit testing, cleaning this up has not been deemed worth the effort
 # at the moment.

 AC_DEFUN([BASIC_FIXUP_PATH_CYGWIN],
 [
   # Input might be given as Windows format, start by converting to
   # unix format.
   path="[$]$1"
   new_path=`$CYGPATH -u "$path"`

   # Cygwin tries to hide some aspects of the Windows file system, such that binaries are
   # named .exe but called without that suffix. Therefore, "foo" and "foo.exe" are considered
   # the same file, most of the time (as in "test -f"). But not when running cygpath -s, then
   # "foo.exe" is OK but "foo" is an error.
   #
   # This test is therefore slightly more accurate than "test -f" to check for file precense.
   # It is also a way to make sure we got the proper file name for the real test later on.
   test_shortpath=`$CYGPATH -s -m "$new_path" 2> /dev/null`
   if test "x$test_shortpath" = x; then
     AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.])
     AC_MSG_ERROR([Cannot locate the the path of $1])
   fi

   # Call helper function which possibly converts this using DOS-style short mode.
   # If so, the updated path is stored in $new_path.
   BASIC_MAKE_WINDOWS_SPACE_SAFE_CYGWIN([$new_path])

   if test "x$path" != "x$new_path"; then
     $1="$new_path"
     AC_MSG_NOTICE([Rewriting $1 to "$new_path"])
   fi
 ])

 AC_DEFUN([BASIC_FIXUP_PATH_MSYS],
 [
   path="[$]$1"
   has_colon=`$ECHO $path | $GREP ^.:`
   new_path="$path"
   if test "x$has_colon" = x; then
     # Not in mixed or Windows style, start by that.
     new_path=`cmd //c echo $path`
   fi

   BASIC_MAKE_WINDOWS_SPACE_SAFE_MSYS([$new_path])
   BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(new_path)
   if test "x$path" != "x$new_path"; then
     $1="$new_path"
     AC_MSG_NOTICE([Rewriting $1 to "$new_path"])
   fi

   # Save the first 10 bytes of this path to the storage, so fixpath can work.
   all_fixpath_prefixes=("${all_fixpath_prefixes@<:@@@:>@}" "${new_path:0:10}")
 ])

 AC_DEFUN([BASIC_FIXUP_EXECUTABLE_CYGWIN],
 [
   # First separate the path from the arguments. This will split at the first
   # space.
   complete="[$]$1"
   path="${complete%% *}"
   tmp="$complete EOL"
   arguments="${tmp#* }"

   # Input might be given as Windows format, start by converting to
   # unix format.
   new_path=`$CYGPATH -u "$path"`

   # Now try to locate executable using which
   new_path=`$WHICH "$new_path" 2> /dev/null`
   # bat and cmd files are not always considered executable in cygwin causing which
   # to not find them
   if test "x$new_path" = x \
       && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
       && test "x`$LS \"$path\" 2>/dev/null`" != x; then
     new_path=`$CYGPATH -u "$path"`
   fi
   if test "x$new_path" = x; then
     # Oops. Which didn't find the executable.
     # The splitting of arguments from the executable at a space might have been incorrect,
     # since paths with space are more likely in Windows. Give it another try with the whole
     # argument.
     path="$complete"
     arguments="EOL"
     new_path=`$CYGPATH -u "$path"`
     new_path=`$WHICH "$new_path" 2> /dev/null`
     # bat and cmd files are not always considered executable in cygwin causing which
     # to not find them
     if test "x$new_path" = x \
         && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
         && test "x`$LS \"$path\" 2>/dev/null`" != x; then
       new_path=`$CYGPATH -u "$path"`
     fi
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
       AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
       has_space=`$ECHO "$complete" | $GREP " "`
       if test "x$has_space" != x; then
         AC_MSG_NOTICE([You might be mixing spaces in the path and extra arguments, which is not allowed.])
       fi
       AC_MSG_ERROR([Cannot locate the the path of $1])
     fi
   fi

   # Cygwin tries to hide some aspects of the Windows file system, such that binaries are
   # named .exe but called without that suffix. Therefore, "foo" and "foo.exe" are considered
   # the same file, most of the time (as in "test -f"). But not when running cygpath -s, then
   # "foo.exe" is OK but "foo" is an error.
   #
   # This test is therefore slightly more accurate than "test -f" to check for file presence.
   # It is also a way to make sure we got the proper file name for the real test later on.
   test_shortpath=`$CYGPATH -s -m "$new_path" 2> /dev/null`
   if test "x$test_shortpath" = x; then
     # Short path failed, file does not exist as specified.
     # Try adding .exe or .cmd
     if test -f "${new_path}.exe"; then
       input_to_shortpath="${new_path}.exe"
     elif test -f "${new_path}.cmd"; then
       input_to_shortpath="${new_path}.cmd"
     else
       AC_MSG_NOTICE([The path of $1, which resolves as "$new_path", is invalid.])
       AC_MSG_NOTICE([Neither "$new_path" nor "$new_path.exe/cmd" can be found])
       AC_MSG_ERROR([Cannot locate the the path of $1])
     fi
   else
     input_to_shortpath="$new_path"
   fi

   # Call helper function which possibly converts this using DOS-style short mode.
   # If so, the updated path is stored in $new_path.
   new_path="$input_to_shortpath"
   BASIC_MAKE_WINDOWS_SPACE_SAFE_CYGWIN([$input_to_shortpath])
   # remove trailing .exe if any
   new_path="${new_path/%.exe/}"
 ])

 AC_DEFUN([BASIC_FIXUP_EXECUTABLE_MSYS],
 [
   # First separate the path from the arguments. This will split at the first
   # space.
   complete="[$]$1"
   path="${complete%% *}"
   tmp="$complete EOL"
   arguments="${tmp#* }"

   # Input might be given as Windows format, start by converting to
   # unix format.
   new_path="$path"
   BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(new_path)

   # Now try to locate executable using which
   new_path=`$WHICH "$new_path" 2> /dev/null`

   if test "x$new_path" = x; then
     # Oops. Which didn't find the executable.
     # The splitting of arguments from the executable at a space might have been incorrect,
     # since paths with space are more likely in Windows. Give it another try with the whole
     # argument.
     path="$complete"
     arguments="EOL"
     new_path="$path"
     BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(new_path)

     new_path=`$WHICH "$new_path" 2> /dev/null`

     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
       AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
       has_space=`$ECHO "$complete" | $GREP " "`
       if test "x$has_space" != x; then
         AC_MSG_NOTICE([You might be mixing spaces in the path and extra arguments, which is not allowed.])
       fi
       AC_MSG_ERROR([Cannot locate the the path of $1])
     fi
   fi

   # Now new_path has a complete unix path to the binary
   if test "x`$ECHO $new_path | $GREP ^/bin/`" != x; then
     # Keep paths in /bin as-is, but remove trailing .exe if any
     new_path="${new_path/%.exe/}"
     # Do not save /bin paths to all_fixpath_prefixes!
   else
     # Not in mixed or Windows style, start by that.
     new_path=`cmd //c echo $new_path`
     BASIC_MAKE_WINDOWS_SPACE_SAFE_MSYS([$new_path])
     # Output is in $new_path
     BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(new_path)
     # remove trailing .exe if any
     new_path="${new_path/%.exe/}"

     # Save the first 10 bytes of this path to the storage, so fixpath can work.
     all_fixpath_prefixes=("${all_fixpath_prefixes@<:@@@:>@}" "${new_path:0:10}")
   fi
 ])

 # Setup basic configuration paths, and platform-specific stuff related to PATHs.
 AC_DEFUN([BASIC_CHECK_PATHS_WINDOWS],
 [
   SRC_ROOT_LENGTH=`$THEPWDCMD -L|$WC -m`
   if test $SRC_ROOT_LENGTH -gt 100; then
     AC_MSG_ERROR([Your base path is too long. It is $SRC_ROOT_LENGTH characters long, but only 100 is supported])
   fi

   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
     AC_MSG_CHECKING([cygwin release])
     CYGWIN_VERSION=`$UNAME -r`
     AC_MSG_RESULT([$CYGWIN_VERSION])
     WINDOWS_ENV_VENDOR='cygwin'
     WINDOWS_ENV_VERSION="$CYGWIN_VERSION"

     CYGWIN_VERSION_OLD=`$ECHO $CYGWIN_VERSION | $GREP -e '^1\.[0-6]'`
     if test "x$CYGWIN_VERSION_OLD" != x; then
       AC_MSG_NOTICE([Your cygwin is too old. You are running $CYGWIN_VERSION, but at least cygwin 1.7 is required. Please upgrade.])
       AC_MSG_ERROR([Cannot continue])
     fi
     if test "x$CYGPATH" = x; then
       AC_MSG_ERROR([Something is wrong with your cygwin installation since I cannot find cygpath.exe in your path])
     fi
     AC_MSG_CHECKING([cygwin root directory as unix-style path])
     # The cmd output ends with Windows line endings (CR/LF), the grep command will strip that away
     cygwin_winpath_root=`cd / ; cmd /c cd | grep ".*"`
     # Force cygpath to report the proper root by including a trailing space, and then stripping it off again.
     CYGWIN_ROOT_PATH=`$CYGPATH -u "$cygwin_winpath_root " | $CUT -f 1 -d " "`
     AC_MSG_RESULT([$CYGWIN_ROOT_PATH])
     WINDOWS_ENV_ROOT_PATH="$CYGWIN_ROOT_PATH"
     test_cygdrive_prefix=`$ECHO $CYGWIN_ROOT_PATH | $GREP ^/cygdrive/`
     if test "x$test_cygdrive_prefix" = x; then
       AC_MSG_ERROR([Your cygdrive prefix is not /cygdrive. This is currently not supported. Change with mount -c.])
     fi
   elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
     AC_MSG_CHECKING([msys release])
     MSYS_VERSION=`$UNAME -r`
     AC_MSG_RESULT([$MSYS_VERSION])

     WINDOWS_ENV_VENDOR='msys'
     WINDOWS_ENV_VERSION="$MSYS_VERSION"

     AC_MSG_CHECKING([msys root directory as unix-style path])
     # The cmd output ends with Windows line endings (CR/LF), the grep command will strip that away
     MSYS_ROOT_PATH=`cd / ; cmd /c cd | grep ".*"`
     BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(MSYS_ROOT_PATH)
     AC_MSG_RESULT([$MSYS_ROOT_PATH])
     WINDOWS_ENV_ROOT_PATH="$MSYS_ROOT_PATH"
   else
     AC_MSG_ERROR([Unknown Windows environment. Neither cygwin nor msys was detected.])
   fi

   # Test if windows or unix (cygwin/msys) find is first in path.
   AC_MSG_CHECKING([what kind of 'find' is first on the PATH])
   FIND_BINARY_OUTPUT=`find --version 2>&1`
   if test "x`echo $FIND_BINARY_OUTPUT | $GREP GNU`" != x; then
     AC_MSG_RESULT([unix style])
   elif test "x`echo $FIND_BINARY_OUTPUT | $GREP FIND`" != x; then
     AC_MSG_RESULT([Windows])
     AC_MSG_NOTICE([Your path contains Windows tools (C:\Windows\system32) before your unix (cygwin or msys) tools.])
     AC_MSG_NOTICE([This will not work. Please correct and make sure /usr/bin (or similar) is first in path.])
     AC_MSG_ERROR([Cannot continue])
   else
     AC_MSG_RESULT([unknown])
     AC_MSG_WARN([It seems that your find utility is non-standard.])
   fi
 ])

 AC_DEFUN_ONCE([BASIC_COMPILE_FIXPATH],
 [
   # When using cygwin or msys, we need a wrapper binary that renames
   # /cygdrive/c/ arguments into c:/ arguments and peeks into
   # @files and rewrites these too! This wrapper binary is
   # called fixpath.
   FIXPATH=
   if test "x$OPENJDK_BUILD_OS" = xwindows; then
     AC_MSG_CHECKING([if fixpath can be created])
     FIXPATH_SRC="$SRC_ROOT/common/src/fixpath.c"
     FIXPATH_BIN="$OUTPUT_ROOT/fixpath.exe"
     if test "x$OPENJDK_BUILD_OS_ENV" = xwindows.cygwin; then
       FIXPATH_SRC=`$CYGPATH -m $FIXPATH_SRC`
       FIXPATH_BIN=`$CYGPATH -m $FIXPATH_BIN`
       # Important to keep the .exe suffix on Cygwin for Hotspot makefiles
       FIXPATH="$OUTPUT_ROOT/fixpath.exe -c"
     elif test "x$OPENJDK_BUILD_OS_ENV" = xwindows.msys; then
       FIXPATH_SRC=`cmd //c echo $FIXPATH_SRC`
       FIXPATH_BIN=`cmd //c echo $FIXPATH_BIN`

       # Take all collected prefixes and turn them into a -m/c/foo@/c/bar@... command line
       # @ was chosen as separator to minimize risk of other tools messing around with it
       all_unique_prefixes=`echo "${all_fixpath_prefixes@<:@@@:>@}" | tr ' ' '\n' | grep '^/./' | sort | uniq`
       fixpath_argument_list=`echo $all_unique_prefixes  | tr ' ' '@'`

       FIXPATH="$OUTPUT_ROOT/fixpath -m$fixpath_argument_list"
     fi
     rm -f $OUTPUT_ROOT/fixpath*
     cd $OUTPUT_ROOT
     $CC $FIXPATH_SRC -Fe$FIXPATH_BIN > $OUTPUT_ROOT/fixpath1.log 2>&1
     cd $CURDIR

     if test ! -x $OUTPUT_ROOT/fixpath.exe; then
       AC_MSG_RESULT([no])
       cat $OUTPUT_ROOT/fixpath1.log
       AC_MSG_ERROR([Could not create $OUTPUT_ROOT/fixpath.exe])
     fi
     AC_MSG_RESULT([yes])
     AC_MSG_CHECKING([if fixpath.exe works])
     cd $OUTPUT_ROOT
     $FIXPATH $CC $SRC_ROOT/common/src/fixpath.c -Fe$OUTPUT_ROOT/fixpath2.exe > $OUTPUT_ROOT/fixpath2.log 2>&1
     cd $CURDIR
     if test ! -x $OUTPUT_ROOT/fixpath2.exe; then
       AC_MSG_RESULT([no])
       cat $OUTPUT_ROOT/fixpath2.log
       AC_MSG_ERROR([fixpath did not work!])
     fi
     AC_MSG_RESULT([yes])
     rm -f $OUTPUT_ROOT/fixpath?.??? $OUTPUT_ROOT/fixpath.obj
   fi

   AC_SUBST(FIXPATH)
 ])
	#
	# Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
	# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	#
	# This code is free software; you can redistribute it and/or modify it
	# under the terms of the GNU General Public License version 2 only, as
	# published by the Free Software Foundation. Oracle designates this
	# particular file as subject to the "Classpath" exception as provided
	# by Oracle in the LICENSE file that accompanied this code.
	#
	# This code is distributed in the hope that it will be useful, but WITHOUT
	# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	# version 2 for more details (a copy is included in the LICENSE file that
	# accompanied this code).
	#
	# You should have received a copy of the GNU General Public License version
	# 2 along with this work; if not, write to the Free Software Foundation,
	# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	#
	# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	# or visit www.oracle.com if you need additional information or have any
	# questions.
	#

	AC_DEFUN([BASIC_WINDOWS_REWRITE_AS_UNIX_PATH],
	[
	windows_path="[$]$1"
	if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
	unix_path=`$CYGPATH -u "$windows_path"`
	$1="$unix_path"
	elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
	unix_path=`$ECHO "$windows_path" \| $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
	$1="$unix_path"
	fi
	])

	AC_DEFUN([BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH],
	[
	unix_path="[$]$1"
	if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
	windows_path=`$CYGPATH -m "$unix_path"`
	$1="$windows_path"
	elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
	windows_path=`cmd //c echo $unix_path`
	$1="$windows_path"
	fi
	])

	# Helper function which possibly converts a path using DOS-style short mode.
	# If so, the updated path is stored in $new_path.
	# $1: The path to check
	AC_DEFUN([BASIC_MAKE_WINDOWS_SPACE_SAFE_CYGWIN],
	[
	input_path="$1"
	# Check if we need to convert this using DOS-style short mode. If the path
	# contains just simple characters, use it. Otherwise (spaces, weird characters),
	# take no chances and rewrite it.
	# Note: m4 eats our [], so we need to use @<:@ and @:>@ instead.
	has_forbidden_chars=`$ECHO "$input_path" \| $GREP @<:@^-._/a-zA-Z0-9@:>@`
	if test "x$has_forbidden_chars" != x; then
	# Now convert it to mixed DOS-style, short mode (no spaces, and / instead of \)
	shortmode_path=`$CYGPATH -s -m -a "$input_path"`
	path_after_shortmode=`$CYGPATH -u "$shortmode_path"`
	if test "x$path_after_shortmode" != "x$input_to_shortpath"; then
	# Going to short mode and back again did indeed matter. Since short mode is
	# case insensitive, let's make it lowercase to improve readability.
	shortmode_path=`$ECHO "$shortmode_path" \| $TR 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
	# Now convert it back to Unix-stile (cygpath)
	input_path=`$CYGPATH -u "$shortmode_path"`
	new_path="$input_path"
	fi
	fi

	test_cygdrive_prefix=`$ECHO $input_path \| $GREP ^/cygdrive/`
	if test "x$test_cygdrive_prefix" = x; then
	# As a simple fix, exclude /usr/bin since it's not a real path.
	if test "x`$ECHO $1 \| $GREP ^/usr/bin/`" = x; then
	# The path is in a Cygwin special directory (e.g. /home). We need this converted to
	# a path prefixed by /cygdrive for fixpath to work.
	new_path="$CYGWIN_ROOT_PATH$input_path"
	fi
	fi
	])

	# Helper function which possibly converts a path using DOS-style short mode.
	# If so, the updated path is stored in $new_path.
	# $1: The path to check
	AC_DEFUN([BASIC_MAKE_WINDOWS_SPACE_SAFE_MSYS],
	[
	input_path="$1"
	# Check if we need to convert this using DOS-style short mode. If the path
	# contains just simple characters, use it. Otherwise (spaces, weird characters),
	# take no chances and rewrite it.
	# Note: m4 eats our [], so we need to use @<:@ and @:>@ instead.
	has_forbidden_chars=`$ECHO "$input_path" \| $GREP @<:@^-_/:a-zA-Z0-9@:>@`
	if test "x$has_forbidden_chars" != x; then
	# Now convert it to mixed DOS-style, short mode (no spaces, and / instead of \)
	new_path=`cmd /c "for %A in (\"$input_path\") do @echo %~sA"\|$TR \\\\\\\\ / \| $TR 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
	fi
	])

	# FIXME: The BASIC_FIXUP_*_CYGWIN/MSYS is most likely too convoluted
	# and could probably be heavily simplified. However, all changes in this
	# area tend to need lot of testing in different scenarios, and in lack of
	# proper unit testing, cleaning this up has not been deemed worth the effort
	# at the moment.

	AC_DEFUN([BASIC_FIXUP_PATH_CYGWIN],
	[
	# Input might be given as Windows format, start by converting to
	# unix format.
	path="[$]$1"
	new_path=`$CYGPATH -u "$path"`

	# Cygwin tries to hide some aspects of the Windows file system, such that binaries are
	# named .exe but called without that suffix. Therefore, "foo" and "foo.exe" are considered
	# the same file, most of the time (as in "test -f"). But not when running cygpath -s, then
	# "foo.exe" is OK but "foo" is an error.
	#
	# This test is therefore slightly more accurate than "test -f" to check for file precense.
	# It is also a way to make sure we got the proper file name for the real test later on.
	test_shortpath=`$CYGPATH -s -m "$new_path" 2> /dev/null`
	if test "x$test_shortpath" = x; then
	AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.])
	AC_MSG_ERROR([Cannot locate the the path of $1])
	fi

	# Call helper function which possibly converts this using DOS-style short mode.
	# If so, the updated path is stored in $new_path.
	BASIC_MAKE_WINDOWS_SPACE_SAFE_CYGWIN([$new_path])

	if test "x$path" != "x$new_path"; then
	$1="$new_path"
	AC_MSG_NOTICE([Rewriting $1 to "$new_path"])
	fi
	])

	AC_DEFUN([BASIC_FIXUP_PATH_MSYS],
	[
	path="[$]$1"
	has_colon=`$ECHO $path \| $GREP ^.:`
	new_path="$path"
	if test "x$has_colon" = x; then
	# Not in mixed or Windows style, start by that.
	new_path=`cmd //c echo $path`
	fi

	BASIC_MAKE_WINDOWS_SPACE_SAFE_MSYS([$new_path])
	BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(new_path)
	if test "x$path" != "x$new_path"; then
	$1="$new_path"
	AC_MSG_NOTICE([Rewriting $1 to "$new_path"])
	fi

	# Save the first 10 bytes of this path to the storage, so fixpath can work.
	all_fixpath_prefixes=("${all_fixpath_prefixes@<:@@@:>@}" "${new_path:0:10}")
	])

	AC_DEFUN([BASIC_FIXUP_EXECUTABLE_CYGWIN],
	[
	# First separate the path from the arguments. This will split at the first
	# space.
	complete="[$]$1"
	path="${complete%% *}"
	tmp="$complete EOL"
	arguments="${tmp#* }"

	# Input might be given as Windows format, start by converting to
	# unix format.
	new_path=`$CYGPATH -u "$path"`

	# Now try to locate executable using which
	new_path=`$WHICH "$new_path" 2> /dev/null`
	# bat and cmd files are not always considered executable in cygwin causing which
	# to not find them
	if test "x$new_path" = x \
	&& test "x`$ECHO \"$path\" \| $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
	&& test "x`$LS \"$path\" 2>/dev/null`" != x; then
	new_path=`$CYGPATH -u "$path"`
	fi
	if test "x$new_path" = x; then
	# Oops. Which didn't find the executable.
	# The splitting of arguments from the executable at a space might have been incorrect,
	# since paths with space are more likely in Windows. Give it another try with the whole
	# argument.
	path="$complete"
	arguments="EOL"
	new_path=`$CYGPATH -u "$path"`
	new_path=`$WHICH "$new_path" 2> /dev/null`
	# bat and cmd files are not always considered executable in cygwin causing which
	# to not find them
	if test "x$new_path" = x \
	&& test "x`$ECHO \"$path\" \| $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
	&& test "x`$LS \"$path\" 2>/dev/null`" != x; then
	new_path=`$CYGPATH -u "$path"`
	fi
	if test "x$new_path" = x; then
	# It's still not found. Now this is an unrecoverable error.
	AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
	has_space=`$ECHO "$complete" \| $GREP " "`
	if test "x$has_space" != x; then
	AC_MSG_NOTICE([You might be mixing spaces in the path and extra arguments, which is not allowed.])
	fi
	AC_MSG_ERROR([Cannot locate the the path of $1])
	fi
	fi

	# Cygwin tries to hide some aspects of the Windows file system, such that binaries are
	# named .exe but called without that suffix. Therefore, "foo" and "foo.exe" are considered
	# the same file, most of the time (as in "test -f"). But not when running cygpath -s, then
	# "foo.exe" is OK but "foo" is an error.
	#
	# This test is therefore slightly more accurate than "test -f" to check for file presence.
	# It is also a way to make sure we got the proper file name for the real test later on.
	test_shortpath=`$CYGPATH -s -m "$new_path" 2> /dev/null`
	if test "x$test_shortpath" = x; then
	# Short path failed, file does not exist as specified.
	# Try adding .exe or .cmd
	if test -f "${new_path}.exe"; then
	input_to_shortpath="${new_path}.exe"
	elif test -f "${new_path}.cmd"; then
	input_to_shortpath="${new_path}.cmd"
	else
	AC_MSG_NOTICE([The path of $1, which resolves as "$new_path", is invalid.])
	AC_MSG_NOTICE([Neither "$new_path" nor "$new_path.exe/cmd" can be found])
	AC_MSG_ERROR([Cannot locate the the path of $1])
	fi
	else
	input_to_shortpath="$new_path"
	fi

	# Call helper function which possibly converts this using DOS-style short mode.
	# If so, the updated path is stored in $new_path.
	new_path="$input_to_shortpath"
	BASIC_MAKE_WINDOWS_SPACE_SAFE_CYGWIN([$input_to_shortpath])
	# remove trailing .exe if any
	new_path="${new_path/%.exe/}"
	])

	AC_DEFUN([BASIC_FIXUP_EXECUTABLE_MSYS],
	[
	# First separate the path from the arguments. This will split at the first
	# space.
	complete="[$]$1"
	path="${complete%% *}"
	tmp="$complete EOL"
	arguments="${tmp#* }"

	# Input might be given as Windows format, start by converting to
	# unix format.
	new_path="$path"
	BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(new_path)

	# Now try to locate executable using which
	new_path=`$WHICH "$new_path" 2> /dev/null`

	if test "x$new_path" = x; then
	# Oops. Which didn't find the executable.
	# The splitting of arguments from the executable at a space might have been incorrect,
	# since paths with space are more likely in Windows. Give it another try with the whole
	# argument.
	path="$complete"
	arguments="EOL"
	new_path="$path"
	BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(new_path)

	new_path=`$WHICH "$new_path" 2> /dev/null`

	if test "x$new_path" = x; then
	# It's still not found. Now this is an unrecoverable error.
	AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
	has_space=`$ECHO "$complete" \| $GREP " "`
	if test "x$has_space" != x; then
	AC_MSG_NOTICE([You might be mixing spaces in the path and extra arguments, which is not allowed.])
	fi
	AC_MSG_ERROR([Cannot locate the the path of $1])
	fi
	fi

	# Now new_path has a complete unix path to the binary
	if test "x`$ECHO $new_path \| $GREP ^/bin/`" != x; then
	# Keep paths in /bin as-is, but remove trailing .exe if any
	new_path="${new_path/%.exe/}"
	# Do not save /bin paths to all_fixpath_prefixes!
	else
	# Not in mixed or Windows style, start by that.
	new_path=`cmd //c echo $new_path`
	BASIC_MAKE_WINDOWS_SPACE_SAFE_MSYS([$new_path])
	# Output is in $new_path
	BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(new_path)
	# remove trailing .exe if any
	new_path="${new_path/%.exe/}"

	# Save the first 10 bytes of this path to the storage, so fixpath can work.
	all_fixpath_prefixes=("${all_fixpath_prefixes@<:@@@:>@}" "${new_path:0:10}")
	fi
	])

	# Setup basic configuration paths, and platform-specific stuff related to PATHs.
	AC_DEFUN([BASIC_CHECK_PATHS_WINDOWS],
	[
	SRC_ROOT_LENGTH=`$THEPWDCMD -L\|$WC -m`
	if test $SRC_ROOT_LENGTH -gt 100; then
	AC_MSG_ERROR([Your base path is too long. It is $SRC_ROOT_LENGTH characters long, but only 100 is supported])
	fi

	if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
	AC_MSG_CHECKING([cygwin release])
	CYGWIN_VERSION=`$UNAME -r`
	AC_MSG_RESULT([$CYGWIN_VERSION])
	WINDOWS_ENV_VENDOR='cygwin'
	WINDOWS_ENV_VERSION="$CYGWIN_VERSION"

	CYGWIN_VERSION_OLD=`$ECHO $CYGWIN_VERSION \| $GREP -e '^1\.[0-6]'`
	if test "x$CYGWIN_VERSION_OLD" != x; then
	AC_MSG_NOTICE([Your cygwin is too old. You are running $CYGWIN_VERSION, but at least cygwin 1.7 is required. Please upgrade.])
	AC_MSG_ERROR([Cannot continue])
	fi
	if test "x$CYGPATH" = x; then
	AC_MSG_ERROR([Something is wrong with your cygwin installation since I cannot find cygpath.exe in your path])
	fi
	AC_MSG_CHECKING([cygwin root directory as unix-style path])
	# The cmd output ends with Windows line endings (CR/LF), the grep command will strip that away
	cygwin_winpath_root=`cd / ; cmd /c cd \| grep ".*"`
	# Force cygpath to report the proper root by including a trailing space, and then stripping it off again.
	CYGWIN_ROOT_PATH=`$CYGPATH -u "$cygwin_winpath_root " \| $CUT -f 1 -d " "`
	AC_MSG_RESULT([$CYGWIN_ROOT_PATH])
	WINDOWS_ENV_ROOT_PATH="$CYGWIN_ROOT_PATH"
	test_cygdrive_prefix=`$ECHO $CYGWIN_ROOT_PATH \| $GREP ^/cygdrive/`
	if test "x$test_cygdrive_prefix" = x; then
	AC_MSG_ERROR([Your cygdrive prefix is not /cygdrive. This is currently not supported. Change with mount -c.])
	fi
	elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
	AC_MSG_CHECKING([msys release])
	MSYS_VERSION=`$UNAME -r`
	AC_MSG_RESULT([$MSYS_VERSION])

	WINDOWS_ENV_VENDOR='msys'
	WINDOWS_ENV_VERSION="$MSYS_VERSION"

	AC_MSG_CHECKING([msys root directory as unix-style path])
	# The cmd output ends with Windows line endings (CR/LF), the grep command will strip that away
	MSYS_ROOT_PATH=`cd / ; cmd /c cd \| grep ".*"`
	BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(MSYS_ROOT_PATH)
	AC_MSG_RESULT([$MSYS_ROOT_PATH])
	WINDOWS_ENV_ROOT_PATH="$MSYS_ROOT_PATH"
	else
	AC_MSG_ERROR([Unknown Windows environment. Neither cygwin nor msys was detected.])
	fi

	# Test if windows or unix (cygwin/msys) find is first in path.
	AC_MSG_CHECKING([what kind of 'find' is first on the PATH])
	FIND_BINARY_OUTPUT=`find --version 2>&1`
	if test "x`echo $FIND_BINARY_OUTPUT \| $GREP GNU`" != x; then
	AC_MSG_RESULT([unix style])
	elif test "x`echo $FIND_BINARY_OUTPUT \| $GREP FIND`" != x; then
	AC_MSG_RESULT([Windows])
	AC_MSG_NOTICE([Your path contains Windows tools (C:\Windows\system32) before your unix (cygwin or msys) tools.])
	AC_MSG_NOTICE([This will not work. Please correct and make sure /usr/bin (or similar) is first in path.])
	AC_MSG_ERROR([Cannot continue])
	else
	AC_MSG_RESULT([unknown])
	AC_MSG_WARN([It seems that your find utility is non-standard.])
	fi
	])

	AC_DEFUN_ONCE([BASIC_COMPILE_FIXPATH],
	[
	# When using cygwin or msys, we need a wrapper binary that renames
	# /cygdrive/c/ arguments into c:/ arguments and peeks into
	# @files and rewrites these too! This wrapper binary is
	# called fixpath.
	FIXPATH=
	if test "x$OPENJDK_BUILD_OS" = xwindows; then
	AC_MSG_CHECKING([if fixpath can be created])
	FIXPATH_SRC="$SRC_ROOT/common/src/fixpath.c"
	FIXPATH_BIN="$OUTPUT_ROOT/fixpath.exe"
	if test "x$OPENJDK_BUILD_OS_ENV" = xwindows.cygwin; then
	FIXPATH_SRC=`$CYGPATH -m $FIXPATH_SRC`
	FIXPATH_BIN=`$CYGPATH -m $FIXPATH_BIN`
	# Important to keep the .exe suffix on Cygwin for Hotspot makefiles
	FIXPATH="$OUTPUT_ROOT/fixpath.exe -c"
	elif test "x$OPENJDK_BUILD_OS_ENV" = xwindows.msys; then
	FIXPATH_SRC=`cmd //c echo $FIXPATH_SRC`
	FIXPATH_BIN=`cmd //c echo $FIXPATH_BIN`

	# Take all collected prefixes and turn them into a -m/c/foo@/c/bar@... command line
	# @ was chosen as separator to minimize risk of other tools messing around with it
	all_unique_prefixes=`echo "${all_fixpath_prefixes@<:@@@:>@}" \| tr ' ' '\n' \| grep '^/./' \| sort \| uniq`
	fixpath_argument_list=`echo $all_unique_prefixes \| tr ' ' '@'`

	FIXPATH="$OUTPUT_ROOT/fixpath -m$fixpath_argument_list"
	fi
	rm -f $OUTPUT_ROOT/fixpath*
	cd $OUTPUT_ROOT
	$CC $FIXPATH_SRC -Fe$FIXPATH_BIN > $OUTPUT_ROOT/fixpath1.log 2>&1
	cd $CURDIR

	if test ! -x $OUTPUT_ROOT/fixpath.exe; then
	AC_MSG_RESULT([no])
	cat $OUTPUT_ROOT/fixpath1.log
	AC_MSG_ERROR([Could not create $OUTPUT_ROOT/fixpath.exe])
	fi
	AC_MSG_RESULT([yes])
	AC_MSG_CHECKING([if fixpath.exe works])
	cd $OUTPUT_ROOT
	$FIXPATH $CC $SRC_ROOT/common/src/fixpath.c -Fe$OUTPUT_ROOT/fixpath2.exe > $OUTPUT_ROOT/fixpath2.log 2>&1
	cd $CURDIR
	if test ! -x $OUTPUT_ROOT/fixpath2.exe; then
	AC_MSG_RESULT([no])
	cat $OUTPUT_ROOT/fixpath2.log
	AC_MSG_ERROR([fixpath did not work!])
	fi
	AC_MSG_RESULT([yes])
	rm -f $OUTPUT_ROOT/fixpath?.??? $OUTPUT_ROOT/fixpath.obj
	fi

	AC_SUBST(FIXPATH)
	])