Mercurial > jdk8-mips64-public / file revision

 #

 # Copyright (c) 2011, 2013, 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.

 #

 # Test if $1 is a valid argument to $3 (often is $JAVA passed as $3)

 # If so, then append $1 to $2\

 # Also set JVM_ARG_OK to true/false depending on outcome.

 AC_DEFUN([ADD_JVM_ARG_IF_OK],

 [

     $ECHO "Check if jvm arg is ok: $1" >&AS_MESSAGE_LOG_FD

     $ECHO "Command: $3 $1 -version" >&AS_MESSAGE_LOG_FD

     OUTPUT=`$3 $1 -version 2>&1`

     FOUND_WARN=`$ECHO "$OUTPUT" | grep -i warn`

     FOUND_VERSION=`$ECHO $OUTPUT | grep " version \""`

     if test "x$FOUND_VERSION" != x && test "x$FOUND_WARN" = x; then

         $2="[$]$2 $1"

 	JVM_ARG_OK=true

     else

 	$ECHO "Arg failed:" >&AS_MESSAGE_LOG_FD

 	$ECHO "$OUTPUT" >&AS_MESSAGE_LOG_FD

 	JVM_ARG_OK=false

     fi

 ])

 # This will make sure the given variable points to a full and proper

 # path. This means:

 # 1) There will be no spaces in the path. On posix platforms,

 #    spaces in the path will result in an error. On Windows,

 #    the path will be rewritten using short-style to be space-free.

 # 2) The path will be absolute, and it will be in unix-style (on

 #     cygwin).

 # $1: The name of the variable to fix

 AC_DEFUN([BASIC_FIXUP_PATH],

 [

   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then

     BASIC_FIXUP_PATH_CYGWIN($1)

   elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then

     BASIC_FIXUP_PATH_MSYS($1)

   else

     # We're on a posix platform. Hooray! :)

     path="[$]$1"

     if test ! -f "$path" && test ! -d "$path"; then

       AC_MSG_ERROR([The path of $1, which resolves as "$path", is not found.])

     fi

     has_space=`$ECHO "$path" | $GREP " "`

     if test "x$has_space" != x; then

       AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.])

       AC_MSG_ERROR([Spaces are not allowed in this path.])

     fi

   fi

 ])

 # This will make sure the given variable points to a executable

 # with a full and proper path. This means:

 # 1) There will be no spaces in the path. On posix platforms,

 #    spaces in the path will result in an error. On Windows,

 #    the path will be rewritten using short-style to be space-free.

 # 2) The path will be absolute, and it will be in unix-style (on

 #     cygwin).

 # Any arguments given to the executable is preserved.

 # If the input variable does not have a directory specification, then

 # it need to be in the PATH.

 # $1: The name of the variable to fix

 AC_DEFUN([BASIC_FIXUP_EXECUTABLE],

 [

   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then

     BASIC_FIXUP_EXECUTABLE_CYGWIN($1)

   elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then

     BASIC_FIXUP_EXECUTABLE_MSYS($1)

   else

     # We're on a posix platform. Hooray! :)

     # First separate the path from the arguments. This will split at the first

     # space.

     complete="[$]$1"

     path="${complete%% *}"

     tmp="$complete EOL"

     arguments="${tmp#* }"

     # Cannot rely on the command "which" here since it doesn't always work.

     is_absolute_path=`$ECHO "$path" | $GREP ^/`

     if test -z "$is_absolute_path"; then

       # Path to executable is not absolute. Find it.

       IFS_save="$IFS"

       IFS=:

       for p in $PATH; do

         if test -f "$p/$path" && test -x "$p/$path"; then

           new_path="$p/$path"

           break

         fi

       done

       IFS="$IFS_save"

     else

       AC_MSG_NOTICE([Resolving $1 (as $path) failed, using $path directly.])

       new_path="$path"

     fi

     if test "x$new_path" = x; then

         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([This might be caused by spaces in the path, which is not allowed.])

         fi

         AC_MSG_ERROR([Cannot locate the the path of $1])

       fi

   fi

       # Now join together the path and the arguments once again

       if test "x$arguments" != xEOL; then

         new_complete="$new_path ${arguments% *}"

       else

         new_complete="$new_path"

       fi

   if test "x$complete" != "x$new_complete"; then

       $1="$new_complete"

       AC_MSG_NOTICE([Rewriting $1 to "$new_complete"])

     fi

 ])

 AC_DEFUN([BASIC_REMOVE_SYMBOLIC_LINKS],

 [

     if test "x$OPENJDK_BUILD_OS" != xwindows; then

         # Follow a chain of symbolic links. Use readlink

         # where it exists, else fall back to horribly

         # complicated shell code.

         if test "x$READLINK_TESTED" != yes; then

             # On MacOSX there is a readlink tool with a different

             # purpose than the GNU readlink tool. Check the found readlink.

             ISGNU=`$READLINK --version 2>&1 | $GREP GNU`

             if test "x$ISGNU" = x; then

                  # A readlink that we do not know how to use.

                  # Are there other non-GNU readlinks out there?

                  READLINK_TESTED=yes

                  READLINK=

             fi

         fi

         if test "x$READLINK" != x; then

             $1=`$READLINK -f [$]$1`

         else

             # Save the current directory for restoring afterwards

             STARTDIR=$PWD

             COUNTER=0

             sym_link_dir=`$DIRNAME [$]$1`

             sym_link_file=`$BASENAME [$]$1`

             # Use the system pwd and not the shell builtin to resolve directory symlinks

             cd $sym_link_dir

             cd `$THEPWDCMD`

             sym_link_dir=`$THEPWDCMD`

             # Resolve file symlinks

             while test $COUNTER -lt 20; do

                 ISLINK=`$LS -l $sym_link_dir/$sym_link_file | $GREP '\->' | $SED -e 's/.*-> \(.*\)/\1/'`

                 if test "x$ISLINK" == x; then

                     # This is not a symbolic link! We are done!

                     break

                 fi

                 # Again resolve directory symlinks since the target of the just found

                 # link could be in a different directory

                 cd `$DIRNAME $ISLINK`

                 sym_link_dir=`$THEPWDCMD`

                 sym_link_file=`$BASENAME $ISLINK`

                 let COUNTER=COUNTER+1

             done

             cd $STARTDIR

             $1=$sym_link_dir/$sym_link_file

         fi

     fi

 ])

 AC_DEFUN_ONCE([BASIC_INIT],

 [

 # Save the original command line. This is passed to us by the wrapper configure script.

 AC_SUBST(CONFIGURE_COMMAND_LINE)

 DATE_WHEN_CONFIGURED=`LANG=C date`

 AC_SUBST(DATE_WHEN_CONFIGURED)

 AC_MSG_NOTICE([Configuration created at $DATE_WHEN_CONFIGURED.])

 AC_MSG_NOTICE([configure script generated at timestamp $DATE_WHEN_GENERATED.])

 ])

 # Test that variable $1 denoting a program is not empty. If empty, exit with an error.

 # $1: variable to check

 # $2: executable name to print in warning (optional)

 AC_DEFUN([BASIC_CHECK_NONEMPTY],

 [

     if test "x[$]$1" = x; then

         if test "x$2" = x; then

           PROG_NAME=translit($1,A-Z,a-z)

         else

           PROG_NAME=$2

         fi

         AC_MSG_NOTICE([Could not find $PROG_NAME!])

         AC_MSG_ERROR([Cannot continue])

     fi

 ])

 # Does AC_PATH_PROG followed by BASIC_CHECK_NONEMPTY.

 # Arguments as AC_PATH_PROG:

 # $1: variable to set

 # $2: executable name to look for

 AC_DEFUN([BASIC_REQUIRE_PROG],

 [

     AC_PATH_PROGS($1, $2)

     BASIC_CHECK_NONEMPTY($1, $2)

 ])

 # Setup the most fundamental tools that relies on not much else to set up,

 # but is used by much of the early bootstrap code.

 AC_DEFUN_ONCE([BASIC_SETUP_FUNDAMENTAL_TOOLS],

 [

 # Start with tools that do not need have cross compilation support

 # and can be expected to be found in the default PATH. These tools are

 # used by configure. Nor are these tools expected to be found in the

 # devkit from the builddeps server either, since they are

 # needed to download the devkit.

 # First are all the simple required tools.

 BASIC_REQUIRE_PROG(BASENAME, basename)

 BASIC_REQUIRE_PROG(BASH, bash)

 BASIC_REQUIRE_PROG(CAT, cat)

 BASIC_REQUIRE_PROG(CHMOD, chmod)

 BASIC_REQUIRE_PROG(CMP, cmp)

 BASIC_REQUIRE_PROG(COMM, comm)

 BASIC_REQUIRE_PROG(CP, cp)

 BASIC_REQUIRE_PROG(CPIO, cpio)

 BASIC_REQUIRE_PROG(CUT, cut)

 BASIC_REQUIRE_PROG(DATE, date)

 BASIC_REQUIRE_PROG(DIFF, [gdiff diff])

 BASIC_REQUIRE_PROG(DIRNAME, dirname)

 BASIC_REQUIRE_PROG(ECHO, echo)

 BASIC_REQUIRE_PROG(EXPR, expr)

 BASIC_REQUIRE_PROG(FILE, file)

 BASIC_REQUIRE_PROG(FIND, find)

 BASIC_REQUIRE_PROG(HEAD, head)

 BASIC_REQUIRE_PROG(LN, ln)

 BASIC_REQUIRE_PROG(LS, ls)

 BASIC_REQUIRE_PROG(MKDIR, mkdir)

 BASIC_REQUIRE_PROG(MKTEMP, mktemp)

 BASIC_REQUIRE_PROG(MV, mv)

 BASIC_REQUIRE_PROG(PRINTF, printf)

 BASIC_REQUIRE_PROG(THEPWDCMD, pwd)

 BASIC_REQUIRE_PROG(RM, rm)

 BASIC_REQUIRE_PROG(SH, sh)

 BASIC_REQUIRE_PROG(SORT, sort)

 BASIC_REQUIRE_PROG(TAIL, tail)

 BASIC_REQUIRE_PROG(TAR, tar)

 BASIC_REQUIRE_PROG(TEE, tee)

 BASIC_REQUIRE_PROG(TOUCH, touch)

 BASIC_REQUIRE_PROG(TR, tr)

 BASIC_REQUIRE_PROG(UNAME, uname)

 BASIC_REQUIRE_PROG(UNIQ, uniq)

 BASIC_REQUIRE_PROG(WC, wc)

 BASIC_REQUIRE_PROG(WHICH, which)

 BASIC_REQUIRE_PROG(XARGS, xargs)

 # Then required tools that require some special treatment.

 AC_PROG_AWK

 BASIC_CHECK_NONEMPTY(AWK)

 AC_PROG_GREP

 BASIC_CHECK_NONEMPTY(GREP)

 AC_PROG_EGREP

 BASIC_CHECK_NONEMPTY(EGREP)

 AC_PROG_FGREP

 BASIC_CHECK_NONEMPTY(FGREP)

 AC_PROG_SED

 BASIC_CHECK_NONEMPTY(SED)

 AC_PATH_PROGS(NAWK, [nawk gawk awk])

 BASIC_CHECK_NONEMPTY(NAWK)

 # Always force rm.

 RM="$RM -f"

 # These are not required on all platforms

 AC_PATH_PROG(CYGPATH, cygpath)

 AC_PATH_PROG(READLINK, readlink)

 AC_PATH_PROG(DF, df)

 AC_PATH_PROG(SETFILE, SetFile)

 ])

 # Setup basic configuration paths, and platform-specific stuff related to PATHs.

 AC_DEFUN_ONCE([BASIC_SETUP_PATHS],

 [

 # Locate the directory of this script.

 SCRIPT="[$]0"

 BASIC_REMOVE_SYMBOLIC_LINKS(SCRIPT)

 AUTOCONF_DIR=`cd \`$DIRNAME $SCRIPT\`; $THEPWDCMD`

 # Where is the source? It is located two levels above the configure script.

 CURDIR="$PWD"

 cd "$AUTOCONF_DIR/../.."

 SRC_ROOT="`$THEPWDCMD`"

 if test "x$OPENJDK_TARGET_OS" = "xwindows"; then

   PATH_SEP=";"

   BASIC_CHECK_PATHS_WINDOWS

 else

   PATH_SEP=":"

 fi

 AC_SUBST(SRC_ROOT)

 AC_SUBST(PATH_SEP)

 cd "$CURDIR"

 BASIC_FIXUP_PATH(SRC_ROOT)

 BASIC_FIXUP_PATH(CURDIR)

 if test "x$OPENJDK_BUILD_OS" = "xsolaris"; then

     # Add extra search paths on solaris for utilities like ar and as etc...

     PATH="$PATH:/usr/ccs/bin:/usr/sfw/bin:/opt/csw/bin"

 fi

 # You can force the sys-root if the sys-root encoded into the cross compiler tools

 # is not correct.

 AC_ARG_WITH(sys-root, [AS_HELP_STRING([--with-sys-root],

   [pass this sys-root to the compilers and tools (for cross-compiling)])])

 if test "x$with_sys_root" != x; then

   SYS_ROOT=$with_sys_root

 else

   SYS_ROOT=/

 fi

 AC_SUBST(SYS_ROOT)

 AC_ARG_WITH([tools-dir], [AS_HELP_STRING([--with-tools-dir],

   [search this directory for compilers and tools (for cross-compiling)])], [TOOLS_DIR=$with_tools_dir])

 AC_ARG_WITH([devkit], [AS_HELP_STRING([--with-devkit],

   [use this directory as base for tools-dir and sys-root (for cross-compiling)])],

   [

     if test "x$with_sys_root" != x; then

       AC_MSG_ERROR([Cannot specify both --with-devkit and --with-sys-root at the same time])

     fi

     if test "x$with_tools_dir" != x; then

       AC_MSG_ERROR([Cannot specify both --with-devkit and --with-tools-dir at the same time])

     fi

     TOOLS_DIR=$with_devkit/bin

     SYS_ROOT=$with_devkit/$host_alias/libc

   ])

 ])

 AC_DEFUN_ONCE([BASIC_SETUP_OUTPUT_DIR],

 [

 AC_ARG_WITH(conf-name, [AS_HELP_STRING([--with-conf-name],

 	[use this as the name of the configuration @<:@generated from important configuration options@:>@])],

         [ CONF_NAME=${with_conf_name} ])

 # Test from where we are running configure, in or outside of src root.

 # To enable comparison of directories, CURDIR needs to be symlink free

 # just like SRC_ROOT already is

 NOSYM_CURDIR="$CURDIR"

 BASIC_REMOVE_SYMBOLIC_LINKS(NOSYM_CURDIR)

 if test "x$NOSYM_CURDIR" = "x$SRC_ROOT" || test "x$NOSYM_CURDIR" = "x$SRC_ROOT/common" \

         || test "x$NOSYM_CURDIR" = "x$SRC_ROOT/common/autoconf" \

         || test "x$NOSYM_CURDIR" = "x$SRC_ROOT/common/makefiles" ; then

     # We are running configure from the src root.

     # Create a default ./build/target-variant-debuglevel output root.

     if test "x${CONF_NAME}" = x; then

         CONF_NAME="${OPENJDK_TARGET_OS}-${OPENJDK_TARGET_CPU}-${JDK_VARIANT}-${ANDED_JVM_VARIANTS}-${DEBUG_LEVEL}"

     fi

     OUTPUT_ROOT="$SRC_ROOT/build/${CONF_NAME}"

     $MKDIR -p "$OUTPUT_ROOT"

     if test ! -d "$OUTPUT_ROOT"; then

         AC_MSG_ERROR([Could not create build directory $OUTPUT_ROOT])

     fi

 else

     # We are running configure from outside of the src dir.

     # Then use the current directory as output dir!

     # If configuration is situated in normal build directory, just use the build

     # directory name as configuration name, otherwise use the complete path.

     if test "x${CONF_NAME}" = x; then

         CONF_NAME=`$ECHO $CURDIR | $SED -e "s!^${SRC_ROOT}/build/!!"`

     fi

     OUTPUT_ROOT="$CURDIR"

     # WARNING: This might be a bad thing to do. You need to be sure you want to

     # have a configuration in this directory. Do some sanity checks!

     if test ! -e "$OUTPUT_ROOT/spec.gmk"; then

       # If we have a spec.gmk, we have run here before and we are OK. Otherwise, check for

       # other files

       files_present=`$LS $OUTPUT_ROOT`

       # Configure has already touched config.log and confdefs.h in the current dir when this check 

       # is performed.

       filtered_files=`$ECHO "$files_present" | $SED -e 's/config.log//g' -e 's/confdefs.h//g' -e 's/ //g' \

                                              | $TR -d '\n'`

       if test "x$filtered_files" != x; then

         AC_MSG_NOTICE([Current directory is $CURDIR.])

         AC_MSG_NOTICE([Since this is not the source root, configure will output the configuration here])

         AC_MSG_NOTICE([(as opposed to creating a configuration in <src_root>/build/<conf-name>).])

         AC_MSG_NOTICE([However, this directory is not empty. This is not allowed, since it could])

         AC_MSG_NOTICE([seriously mess up just about everything.])

         AC_MSG_NOTICE([Try 'cd $SRC_ROOT' and restart configure])

         AC_MSG_NOTICE([(or create a new empty directory and cd to it).])

         AC_MSG_ERROR([Will not continue creating configuration in $CURDIR])

       fi

     fi

 fi

 AC_MSG_CHECKING([what configuration name to use])

 AC_MSG_RESULT([$CONF_NAME])

 BASIC_FIXUP_PATH(OUTPUT_ROOT)

 AC_SUBST(SPEC, $OUTPUT_ROOT/spec.gmk)

 AC_SUBST(CONF_NAME, $CONF_NAME)

 AC_SUBST(OUTPUT_ROOT, $OUTPUT_ROOT)

 # Most of the probed defines are put into config.h

 AC_CONFIG_HEADERS([$OUTPUT_ROOT/config.h:$AUTOCONF_DIR/config.h.in])

 # The spec.gmk file contains all variables for the make system.

 AC_CONFIG_FILES([$OUTPUT_ROOT/spec.gmk:$AUTOCONF_DIR/spec.gmk.in])

 # The hotspot-spec.gmk file contains legacy variables for the hotspot make system.

 AC_CONFIG_FILES([$OUTPUT_ROOT/hotspot-spec.gmk:$AUTOCONF_DIR/hotspot-spec.gmk.in])

 # The bootcycle-spec.gmk file contains support for boot cycle builds.

 AC_CONFIG_FILES([$OUTPUT_ROOT/bootcycle-spec.gmk:$AUTOCONF_DIR/bootcycle-spec.gmk.in])

 # The compare.sh is used to compare the build output to other builds.

 AC_CONFIG_FILES([$OUTPUT_ROOT/compare.sh:$AUTOCONF_DIR/compare.sh.in])

 # Spec.sh is currently used by compare-objects.sh

 AC_CONFIG_FILES([$OUTPUT_ROOT/spec.sh:$AUTOCONF_DIR/spec.sh.in])

 # The generated Makefile knows where the spec.gmk is and where the source is.

 # You can run make from the OUTPUT_ROOT, or from the top-level Makefile

 # which will look for generated configurations

 AC_CONFIG_FILES([$OUTPUT_ROOT/Makefile:$AUTOCONF_DIR/Makefile.in])

 # Save the arguments given to us

 echo "$CONFIGURE_COMMAND_LINE" > $OUTPUT_ROOT/configure-arguments

 ])

 AC_DEFUN_ONCE([BASIC_SETUP_LOGGING],

 [

 # Setup default logging of stdout and stderr to build.log in the output root.

 BUILD_LOG='$(OUTPUT_ROOT)/build.log'

 BUILD_LOG_PREVIOUS='$(OUTPUT_ROOT)/build.log.old'

 BUILD_LOG_WRAPPER='$(BASH) $(SRC_ROOT)/common/bin/logger.sh $(BUILD_LOG)'

 AC_SUBST(BUILD_LOG)

 AC_SUBST(BUILD_LOG_PREVIOUS)

 AC_SUBST(BUILD_LOG_WRAPPER)

 ])

 #%%% Simple tools %%%

 # Check if we have found a usable version of make

 # $1: the path to a potential make binary (or empty)

 # $2: the description on how we found this

 AC_DEFUN([BASIC_CHECK_MAKE_VERSION],

 [

   MAKE_CANDIDATE="$1"

   DESCRIPTION="$2"

   if test "x$MAKE_CANDIDATE" != x; then

     AC_MSG_NOTICE([Testing potential make at $MAKE_CANDIDATE, found using $DESCRIPTION])

     MAKE_VERSION_STRING=`$MAKE_CANDIDATE --version | $HEAD -n 1`

     IS_GNU_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP 'GNU Make'`

     if test "x$IS_GNU_MAKE" = x; then

       AC_MSG_NOTICE([Found potential make at $MAKE_CANDIDATE, however, this is not GNU Make. Ignoring.])

     else

       IS_MODERN_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP '3.8[[12346789]]'`

       if test "x$IS_MODERN_MAKE" = x; then

         AC_MSG_NOTICE([Found GNU make at $MAKE_CANDIDATE, however this is not version 3.81 or later. (it is: $MAKE_VERSION_STRING). Ignoring.])

       else

         if test "x$OPENJDK_BUILD_OS" = "xwindows"; then

           if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then

             MAKE_EXPECTED_ENV='cygwin'

           elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then

             MAKE_EXPECTED_ENV='msys'

           else

             AC_MSG_ERROR([Unknown Windows environment])

           fi

           MAKE_BUILT_FOR=`$MAKE_CANDIDATE --version | $GREP -i 'built for'`

           IS_MAKE_CORRECT_ENV=`$ECHO $MAKE_BUILT_FOR | $GREP $MAKE_EXPECTED_ENV`

         else

           # Not relevant for non-Windows

           IS_MAKE_CORRECT_ENV=true

         fi

         if test "x$IS_MAKE_CORRECT_ENV" = x; then

           AC_MSG_NOTICE([Found GNU make version $MAKE_VERSION_STRING at $MAKE_CANDIDATE, but it is not for $MAKE_EXPECTED_ENV (it says: $MAKE_BUILT_FOR). Ignoring.])

         else

           FOUND_MAKE=$MAKE_CANDIDATE

           BASIC_FIXUP_EXECUTABLE(FOUND_MAKE)

         fi

       fi

     fi

   fi

 ])

 # Goes looking for a usable version of GNU make.

 AC_DEFUN([BASIC_CHECK_GNU_MAKE],

 [

   # We need to find a recent version of GNU make. Especially on Solaris, this can be tricky.

   if test "x$MAKE" != x; then

     # User has supplied a make, test it.

     if test ! -f "$MAKE"; then

       AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not found.])

     fi

     BASIC_CHECK_MAKE_VERSION("$MAKE", [user supplied MAKE=$MAKE])

     if test "x$FOUND_MAKE" = x; then

       AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not GNU make 3.81 or newer.])

     fi

   else

     # Try our hardest to locate a correct version of GNU make

     AC_PATH_PROGS(CHECK_GMAKE, gmake)

     BASIC_CHECK_MAKE_VERSION("$CHECK_GMAKE", [gmake in PATH])

     if test "x$FOUND_MAKE" = x; then

       AC_PATH_PROGS(CHECK_MAKE, make)

       BASIC_CHECK_MAKE_VERSION("$CHECK_MAKE", [make in PATH])

     fi

     if test "x$FOUND_MAKE" = x; then

       if test "x$TOOLS_DIR" != x; then

         # We have a tools-dir, check that as well before giving up.

         OLD_PATH=$PATH

         PATH=$TOOLS_DIR:$PATH

         AC_PATH_PROGS(CHECK_TOOLSDIR_GMAKE, gmake)

         BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_GMAKE", [gmake in tools-dir])

         if test "x$FOUND_MAKE" = x; then

           AC_PATH_PROGS(CHECK_TOOLSDIR_MAKE, make)

           BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_MAKE", [make in tools-dir])

         fi

         PATH=$OLD_PATH

       fi

     fi

     if test "x$FOUND_MAKE" = x; then

       AC_MSG_ERROR([Cannot find GNU make 3.81 or newer! Please put it in the path, or add e.g. MAKE=/opt/gmake3.81/make as argument to configure.])

     fi

   fi

   MAKE=$FOUND_MAKE

   AC_SUBST(MAKE)

   AC_MSG_NOTICE([Using GNU make 3.81 (or later) at $FOUND_MAKE (version: $MAKE_VERSION_STRING)])

 ])

 AC_DEFUN([BASIC_CHECK_FIND_DELETE],

 [

     # Test if find supports -delete

     AC_MSG_CHECKING([if find supports -delete])

     FIND_DELETE="-delete"

     DELETEDIR=`$MKTEMP -d tmp.XXXXXXXXXX` || (echo Could not create temporary directory!; exit $?)

     echo Hejsan > $DELETEDIR/TestIfFindSupportsDelete

     TEST_DELETE=`$FIND "$DELETEDIR" -name TestIfFindSupportsDelete $FIND_DELETE 2>&1`

     if test -f $DELETEDIR/TestIfFindSupportsDelete; then

         # No, it does not.

         rm $DELETEDIR/TestIfFindSupportsDelete

         FIND_DELETE="-exec rm \{\} \+"

         AC_MSG_RESULT([no])    

     else

         AC_MSG_RESULT([yes])    

     fi

     rmdir $DELETEDIR

     AC_SUBST(FIND_DELETE)

 ])

 AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],

 [

 BASIC_CHECK_GNU_MAKE

 BASIC_CHECK_FIND_DELETE

 # These tools might not be installed by default, 

 # need hint on how to install them.

 BASIC_REQUIRE_PROG(UNZIP, unzip)

 BASIC_REQUIRE_PROG(ZIP, zip)

 # Non-required basic tools

 AC_PATH_PROG(LDD, ldd)

 if test "x$LDD" = "x"; then

     # List shared lib dependencies is used for

     # debug output and checking for forbidden dependencies.

     # We can build without it.

     LDD="true"

 fi

 AC_PATH_PROG(OTOOL, otool)

 if test "x$OTOOL" = "x"; then

    OTOOL="true"

 fi

 AC_PATH_PROGS(READELF, [readelf greadelf])

 AC_PATH_PROG(HG, hg)

 AC_PATH_PROG(STAT, stat)

 AC_PATH_PROG(TIME, time)

 if test "x$OPENJDK_TARGET_OS" = "xwindows"; then

   BASIC_REQUIRE_PROG(COMM, comm)

 fi

 if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then

   BASIC_REQUIRE_PROG(XATTR, xattr)

 fi

 ])

 # Check if build directory is on local disk. If not possible to determine,

 # we prefer to claim it's local.

 # Argument 1: directory to test

 # Argument 2: what to do if it is on local disk

 # Argument 3: what to do otherwise (remote disk or failure)

 AC_DEFUN([BASIC_CHECK_DIR_ON_LOCAL_DISK],

 [

 	# df -l lists only local disks; if the given directory is not found then

 	# a non-zero exit code is given

   if test "x$DF" = x; then

     if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then

       # msys does not have df; use Windows "net use" instead.

       IS_NETWORK_DISK=`net use | grep \`pwd -W | cut -d ":" -f 1 | tr a-z A-Z\`:`

       if test "x$IS_NETWORK_DISK" = x; then

         $2

       else

         $3

       fi

     else

       # No df here, say it's local

       $2

     fi

   else

     if $DF -l $1 > /dev/null 2>&1; then

       $2

     else

       $3

     fi

   fi

 ])

 # Check that source files have basic read permissions set. This might

 # not be the case in cygwin in certain conditions.

 AC_DEFUN_ONCE([BASIC_CHECK_SRC_PERMS],

 [

   if test x"$OPENJDK_BUILD_OS" = xwindows; then

     file_to_test="$SRC_ROOT/LICENSE"

     if test `$STAT -c '%a' "$file_to_test"` -lt 400; then

       AC_MSG_ERROR([Bad file permissions on src files. This is usually caused by cloning the repositories with a non cygwin hg in a directory not created in cygwin.])

     fi

   fi

 ])

 AC_DEFUN_ONCE([BASIC_TEST_USABILITY_ISSUES],

 [

 AC_MSG_CHECKING([if build directory is on local disk])

 BASIC_CHECK_DIR_ON_LOCAL_DISK($OUTPUT_ROOT,

   [OUTPUT_DIR_IS_LOCAL="yes"],

   [OUTPUT_DIR_IS_LOCAL="no"])

 AC_MSG_RESULT($OUTPUT_DIR_IS_LOCAL)

 BASIC_CHECK_SRC_PERMS

 # Check if the user has any old-style ALT_ variables set.

 FOUND_ALT_VARIABLES=`env | grep ^ALT_`

 # Before generating output files, test if they exist. If they do, this is a reconfigure.

 # Since we can't properly handle the dependencies for this, warn the user about the situation

 if test -e $OUTPUT_ROOT/spec.gmk; then

   IS_RECONFIGURE=yes

 else

   IS_RECONFIGURE=no

 fi

 if test -e $SRC_ROOT/build/.hide-configure-performance-hints; then

   HIDE_PERFORMANCE_HINTS=yes

 else

   HIDE_PERFORMANCE_HINTS=no

   # Hide it the next time around...

   $TOUCH $SRC_ROOT/build/.hide-configure-performance-hints > /dev/null 2>&1

 fi

 ])