1 #
   2 # Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
   3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4 #
   5 # This code is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License version 2 only, as
   7 # published by the Free Software Foundation.  Oracle designates this
   8 # particular file as subject to the "Classpath" exception as provided
   9 # by Oracle in the LICENSE file that accompanied this code.
  10 #
  11 # This code is distributed in the hope that it will be useful, but WITHOUT
  12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 # version 2 for more details (a copy is included in the LICENSE file that
  15 # accompanied this code).
  16 #
  17 # You should have received a copy of the GNU General Public License version
  18 # 2 along with this work; if not, write to the Free Software Foundation,
  19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20 #
  21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22 # or visit www.oracle.com if you need additional information or have any
  23 # questions.
  24 #
  25 
  26 # Test if $1 is a valid argument to $3 (often is $JAVA passed as $3)
  27 # If so, then append $1 to $2\
  28 # Also set JVM_ARG_OK to true/false depending on outcome.
  29 AC_DEFUN([ADD_JVM_ARG_IF_OK],
  30 [
  31     $ECHO "Check if jvm arg is ok: $1" >&AS_MESSAGE_LOG_FD
  32     $ECHO "Command: $3 $1 -version" >&AS_MESSAGE_LOG_FD
  33     OUTPUT=`$3 $1 -version 2>&1`
  34     FOUND_WARN=`$ECHO "$OUTPUT" | grep -i warn`
  35     FOUND_VERSION=`$ECHO $OUTPUT | grep " version \""`
  36     if test "x$FOUND_VERSION" != x && test "x$FOUND_WARN" = x; then
  37         $2="[$]$2 $1"
  38         JVM_ARG_OK=true
  39     else
  40         $ECHO "Arg failed:" >&AS_MESSAGE_LOG_FD
  41         $ECHO "$OUTPUT" >&AS_MESSAGE_LOG_FD
  42         JVM_ARG_OK=false
  43     fi
  44 ])
  45 
  46 # This will make sure the given variable points to a full and proper
  47 # path. This means:
  48 # 1) There will be no spaces in the path. On posix platforms,
  49 #    spaces in the path will result in an error. On Windows,
  50 #    the path will be rewritten using short-style to be space-free.
  51 # 2) The path will be absolute, and it will be in unix-style (on
  52 #     cygwin).
  53 # $1: The name of the variable to fix
  54 AC_DEFUN([BASIC_FIXUP_PATH],
  55 [
  56   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
  57     BASIC_FIXUP_PATH_CYGWIN($1)
  58   elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
  59     BASIC_FIXUP_PATH_MSYS($1)
  60   else
  61     # We're on a posix platform. Hooray! :)
  62     path="[$]$1"
  63     has_space=`$ECHO "$path" | $GREP " "`
  64     if test "x$has_space" != x; then
  65       AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.])
  66       AC_MSG_ERROR([Spaces are not allowed in this path.])
  67     fi
  68 
  69     # Use eval to expand a potential ~
  70     eval path="$path"
  71     if test ! -f "$path" && test ! -d "$path"; then
  72       AC_MSG_ERROR([The path of $1, which resolves as "$path", is not found.])
  73     fi
  74 
  75     $1="`cd "$path"; $THEPWDCMD -L`" 
  76   fi
  77 ])
  78 
  79 # This will make sure the given variable points to a executable
  80 # with a full and proper path. This means:
  81 # 1) There will be no spaces in the path. On posix platforms,
  82 #    spaces in the path will result in an error. On Windows,
  83 #    the path will be rewritten using short-style to be space-free.
  84 # 2) The path will be absolute, and it will be in unix-style (on
  85 #     cygwin).
  86 # Any arguments given to the executable is preserved.
  87 # If the input variable does not have a directory specification, then
  88 # it need to be in the PATH.
  89 # $1: The name of the variable to fix
  90 AC_DEFUN([BASIC_FIXUP_EXECUTABLE],
  91 [
  92   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
  93     BASIC_FIXUP_EXECUTABLE_CYGWIN($1)
  94   elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
  95     BASIC_FIXUP_EXECUTABLE_MSYS($1)
  96   else
  97     # We're on a posix platform. Hooray! :)
  98     # First separate the path from the arguments. This will split at the first
  99     # space.
 100     complete="[$]$1"
 101     path="${complete%% *}"
 102     tmp="$complete EOL"
 103     arguments="${tmp#* }"
 104 
 105     # Cannot rely on the command "which" here since it doesn't always work.
 106     is_absolute_path=`$ECHO "$path" | $GREP ^/`
 107     if test -z "$is_absolute_path"; then
 108       # Path to executable is not absolute. Find it.
 109       IFS_save="$IFS"
 110       IFS=:
 111       for p in $PATH; do
 112         if test -f "$p/$path" && test -x "$p/$path"; then
 113           new_path="$p/$path"
 114           break
 115         fi
 116       done
 117       IFS="$IFS_save"
 118     else
 119       AC_MSG_NOTICE([Resolving $1 (as $path) failed, using $path directly.])
 120       new_path="$path"
 121     fi
 122     
 123     if test "x$new_path" = x; then
 124         AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
 125         has_space=`$ECHO "$complete" | $GREP " "`
 126         if test "x$has_space" != x; then
 127           AC_MSG_NOTICE([This might be caused by spaces in the path, which is not allowed.])
 128         fi
 129         AC_MSG_ERROR([Cannot locate the the path of $1])
 130       fi
 131   fi
 132 
 133       # Now join together the path and the arguments once again
 134       if test "x$arguments" != xEOL; then
 135         new_complete="$new_path ${arguments% *}"
 136       else
 137         new_complete="$new_path"
 138       fi
 139 
 140   if test "x$complete" != "x$new_complete"; then
 141       $1="$new_complete"
 142       AC_MSG_NOTICE([Rewriting $1 to "$new_complete"])
 143     fi
 144 ])
 145 
 146 AC_DEFUN([BASIC_REMOVE_SYMBOLIC_LINKS],
 147 [
 148     if test "x$OPENJDK_BUILD_OS" != xwindows; then
 149         # Follow a chain of symbolic links. Use readlink
 150         # where it exists, else fall back to horribly
 151         # complicated shell code.
 152         if test "x$READLINK_TESTED" != yes; then
 153             # On MacOSX there is a readlink tool with a different
 154             # purpose than the GNU readlink tool. Check the found readlink.
 155             ISGNU=`$READLINK --version 2>&1 | $GREP GNU`
 156             if test "x$ISGNU" = x; then
 157                  # A readlink that we do not know how to use.
 158                  # Are there other non-GNU readlinks out there?
 159                  READLINK_TESTED=yes
 160                  READLINK=
 161             fi
 162         fi
 163 
 164         if test "x$READLINK" != x; then
 165             $1=`$READLINK -f [$]$1`
 166         else
 167             # Save the current directory for restoring afterwards
 168             STARTDIR=$PWD
 169             COUNTER=0
 170             sym_link_dir=`$DIRNAME [$]$1`
 171             sym_link_file=`$BASENAME [$]$1`
 172             cd $sym_link_dir
 173             # Use -P flag to resolve symlinks in directories.
 174             cd `$THEPWDCMD -P`
 175             sym_link_dir=`$THEPWDCMD -P`
 176             # Resolve file symlinks
 177             while test $COUNTER -lt 20; do
 178                 ISLINK=`$LS -l $sym_link_dir/$sym_link_file | $GREP '\->' | $SED -e 's/.*-> \(.*\)/\1/'`
 179                 if test "x$ISLINK" == x; then
 180                     # This is not a symbolic link! We are done!
 181                     break
 182                 fi
 183                 # Again resolve directory symlinks since the target of the just found
 184                 # link could be in a different directory
 185                 cd `$DIRNAME $ISLINK`
 186                 sym_link_dir=`$THEPWDCMD -P`
 187                 sym_link_file=`$BASENAME $ISLINK`
 188                 let COUNTER=COUNTER+1
 189             done
 190             cd $STARTDIR
 191             $1=$sym_link_dir/$sym_link_file
 192         fi
 193     fi
 194 ])
 195 
 196 AC_DEFUN_ONCE([BASIC_INIT],
 197 [
 198 # Save the original command line. This is passed to us by the wrapper configure script.
 199 AC_SUBST(CONFIGURE_COMMAND_LINE)
 200 DATE_WHEN_CONFIGURED=`LANG=C date`
 201 AC_SUBST(DATE_WHEN_CONFIGURED)
 202 AC_MSG_NOTICE([Configuration created at $DATE_WHEN_CONFIGURED.])
 203 AC_MSG_NOTICE([configure script generated at timestamp $DATE_WHEN_GENERATED.])
 204 ])
 205 
 206 # Test that variable $1 denoting a program is not empty. If empty, exit with an error.
 207 # $1: variable to check
 208 # $2: executable name to print in warning (optional)
 209 AC_DEFUN([BASIC_CHECK_NONEMPTY],
 210 [
 211     if test "x[$]$1" = x; then
 212         if test "x$2" = x; then
 213           PROG_NAME=translit($1,A-Z,a-z)
 214         else
 215           PROG_NAME=$2
 216         fi
 217         AC_MSG_NOTICE([Could not find $PROG_NAME!])
 218         AC_MSG_ERROR([Cannot continue])
 219     fi
 220 ])
 221 
 222 # Does AC_PATH_PROG followed by BASIC_CHECK_NONEMPTY.
 223 # Arguments as AC_PATH_PROG:
 224 # $1: variable to set
 225 # $2: executable name to look for
 226 AC_DEFUN([BASIC_REQUIRE_PROG],
 227 [
 228     AC_PATH_PROGS($1, $2)
 229     BASIC_CHECK_NONEMPTY($1, $2)
 230 ])
 231 
 232 # Setup the most fundamental tools that relies on not much else to set up,
 233 # but is used by much of the early bootstrap code.
 234 AC_DEFUN_ONCE([BASIC_SETUP_FUNDAMENTAL_TOOLS],
 235 [
 236 
 237 # Start with tools that do not need have cross compilation support
 238 # and can be expected to be found in the default PATH. These tools are
 239 # used by configure. Nor are these tools expected to be found in the
 240 # devkit from the builddeps server either, since they are
 241 # needed to download the devkit.
 242 
 243 # First are all the simple required tools.
 244 BASIC_REQUIRE_PROG(BASENAME, basename)
 245 BASIC_REQUIRE_PROG(BASH, bash)
 246 BASIC_REQUIRE_PROG(CAT, cat)
 247 BASIC_REQUIRE_PROG(CHMOD, chmod)
 248 BASIC_REQUIRE_PROG(CMP, cmp)
 249 BASIC_REQUIRE_PROG(COMM, comm)
 250 BASIC_REQUIRE_PROG(CP, cp)
 251 BASIC_REQUIRE_PROG(CPIO, cpio)
 252 BASIC_REQUIRE_PROG(CUT, cut)
 253 BASIC_REQUIRE_PROG(DATE, date)
 254 BASIC_REQUIRE_PROG(DIFF, [gdiff diff])
 255 BASIC_REQUIRE_PROG(DIRNAME, dirname)
 256 BASIC_REQUIRE_PROG(ECHO, echo)
 257 BASIC_REQUIRE_PROG(EXPR, expr)
 258 BASIC_REQUIRE_PROG(FILE, file)
 259 BASIC_REQUIRE_PROG(FIND, find)
 260 BASIC_REQUIRE_PROG(HEAD, head)
 261 BASIC_REQUIRE_PROG(LN, ln)
 262 BASIC_REQUIRE_PROG(LS, ls)
 263 BASIC_REQUIRE_PROG(MKDIR, mkdir)
 264 BASIC_REQUIRE_PROG(MKTEMP, mktemp)
 265 BASIC_REQUIRE_PROG(MV, mv)
 266 BASIC_REQUIRE_PROG(PRINTF, printf)
 267 BASIC_REQUIRE_PROG(RM, rm)
 268 BASIC_REQUIRE_PROG(SH, sh)
 269 BASIC_REQUIRE_PROG(SORT, sort)
 270 BASIC_REQUIRE_PROG(TAIL, tail)
 271 BASIC_REQUIRE_PROG(TAR, tar)
 272 BASIC_REQUIRE_PROG(TEE, tee)
 273 BASIC_REQUIRE_PROG(TOUCH, touch)
 274 BASIC_REQUIRE_PROG(TR, tr)
 275 BASIC_REQUIRE_PROG(UNAME, uname)
 276 BASIC_REQUIRE_PROG(UNIQ, uniq)
 277 BASIC_REQUIRE_PROG(WC, wc)
 278 BASIC_REQUIRE_PROG(WHICH, which)
 279 BASIC_REQUIRE_PROG(XARGS, xargs)
 280 
 281 # Then required tools that require some special treatment.
 282 AC_PROG_AWK
 283 BASIC_CHECK_NONEMPTY(AWK)
 284 AC_PROG_GREP
 285 BASIC_CHECK_NONEMPTY(GREP)
 286 AC_PROG_EGREP
 287 BASIC_CHECK_NONEMPTY(EGREP)
 288 AC_PROG_FGREP
 289 BASIC_CHECK_NONEMPTY(FGREP)
 290 AC_PROG_SED
 291 BASIC_CHECK_NONEMPTY(SED)
 292 
 293 AC_PATH_PROGS(NAWK, [nawk gawk awk])
 294 BASIC_CHECK_NONEMPTY(NAWK)
 295 
 296 # Always force rm.
 297 RM="$RM -f"
 298 
 299 # pwd behaves differently on various platforms and some don't support the -L flag.
 300 # Always use the bash builtin pwd to get uniform behavior.
 301 THEPWDCMD=pwd
 302 
 303 # These are not required on all platforms
 304 AC_PATH_PROG(CYGPATH, cygpath)
 305 AC_PATH_PROG(READLINK, readlink)
 306 AC_PATH_PROG(DF, df)
 307 AC_PATH_PROG(SETFILE, SetFile)
 308 ])
 309 
 310 # Setup basic configuration paths, and platform-specific stuff related to PATHs.
 311 AC_DEFUN_ONCE([BASIC_SETUP_PATHS],
 312 [
 313 # Locate the directory of this script.
 314 SCRIPT="[$]0"
 315 AUTOCONF_DIR=`cd \`$DIRNAME $SCRIPT\`; $THEPWDCMD -L`
 316 
 317 # Where is the source? It is located two levels above the configure script.
 318 CURDIR="$PWD"
 319 cd "$AUTOCONF_DIR/../.."
 320 SRC_ROOT="`$THEPWDCMD -L`"
 321 
 322 if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 323   PATH_SEP=";"
 324   BASIC_CHECK_PATHS_WINDOWS
 325 else
 326   PATH_SEP=":"
 327 fi
 328 
 329 AC_SUBST(SRC_ROOT)
 330 AC_SUBST(PATH_SEP)
 331 cd "$CURDIR"
 332 
 333 BASIC_FIXUP_PATH(SRC_ROOT)
 334 BASIC_FIXUP_PATH(CURDIR)
 335 
 336 if test "x$OPENJDK_BUILD_OS" = "xsolaris"; then
 337     # Add extra search paths on solaris for utilities like ar and as etc...
 338     PATH="$PATH:/usr/ccs/bin:/usr/sfw/bin:/opt/csw/bin"
 339 fi
 340 
 341 # You can force the sys-root if the sys-root encoded into the cross compiler tools
 342 # is not correct.
 343 AC_ARG_WITH(sys-root, [AS_HELP_STRING([--with-sys-root],
 344   [pass this sys-root to the compilers and tools (for cross-compiling)])])
 345 
 346 if test "x$with_sys_root" != x; then
 347   SYS_ROOT=$with_sys_root
 348 else
 349   SYS_ROOT=/
 350 fi
 351 AC_SUBST(SYS_ROOT)
 352 
 353 AC_ARG_WITH([tools-dir], [AS_HELP_STRING([--with-tools-dir],
 354   [search this directory for compilers and tools (for cross-compiling)])], [TOOLS_DIR=$with_tools_dir])
 355 
 356 AC_ARG_WITH([devkit], [AS_HELP_STRING([--with-devkit],
 357   [use this directory as base for tools-dir and sys-root (for cross-compiling)])],
 358   [
 359     if test "x$with_sys_root" != x; then
 360       AC_MSG_ERROR([Cannot specify both --with-devkit and --with-sys-root at the same time])
 361     fi
 362     if test "x$with_tools_dir" != x; then
 363       AC_MSG_ERROR([Cannot specify both --with-devkit and --with-tools-dir at the same time])
 364     fi
 365     TOOLS_DIR=$with_devkit/bin
 366     if test -d "$with_devkit/$host_alias/libc"; then
 367       SYS_ROOT=$with_devkit/$host_alias/libc
 368     elif test -d "$with_devkit/$host/sys-root"; then
 369       SYS_ROOT=$with_devkit/$host/sys-root
 370     fi
 371   ])
 372 
 373 ])
 374 
 375 AC_DEFUN_ONCE([BASIC_SETUP_OUTPUT_DIR],
 376 [
 377 
 378 AC_ARG_WITH(conf-name, [AS_HELP_STRING([--with-conf-name],
 379         [use this as the name of the configuration @<:@generated from important configuration options@:>@])],
 380         [ CONF_NAME=${with_conf_name} ])
 381 
 382 # Test from where we are running configure, in or outside of src root.
 383 if test "x$CURDIR" = "x$SRC_ROOT" || test "x$CURDIR" = "x$SRC_ROOT/common" \
 384         || test "x$CURDIR" = "x$SRC_ROOT/common/autoconf" \
 385         || test "x$CURDIR" = "x$SRC_ROOT/common/makefiles" ; then
 386     # We are running configure from the src root.
 387     # Create a default ./build/target-variant-debuglevel output root.
 388     if test "x${CONF_NAME}" = x; then
 389         CONF_NAME="${OPENJDK_TARGET_OS}-${OPENJDK_TARGET_CPU}-${JDK_VARIANT}-${ANDED_JVM_VARIANTS}-${DEBUG_LEVEL}"
 390     fi
 391     OUTPUT_ROOT="$SRC_ROOT/build/${CONF_NAME}"
 392     $MKDIR -p "$OUTPUT_ROOT"
 393     if test ! -d "$OUTPUT_ROOT"; then
 394         AC_MSG_ERROR([Could not create build directory $OUTPUT_ROOT])
 395     fi
 396 else
 397     # We are running configure from outside of the src dir.
 398     # Then use the current directory as output dir!
 399     # If configuration is situated in normal build directory, just use the build
 400     # directory name as configuration name, otherwise use the complete path.
 401     if test "x${CONF_NAME}" = x; then
 402         CONF_NAME=`$ECHO $CURDIR | $SED -e "s!^${SRC_ROOT}/build/!!"`
 403     fi
 404     OUTPUT_ROOT="$CURDIR"
 405 
 406     # WARNING: This might be a bad thing to do. You need to be sure you want to
 407     # have a configuration in this directory. Do some sanity checks!
 408 
 409     if test ! -e "$OUTPUT_ROOT/spec.gmk"; then
 410       # If we have a spec.gmk, we have run here before and we are OK. Otherwise, check for
 411       # other files
 412       files_present=`$LS $OUTPUT_ROOT`
 413       # Configure has already touched config.log and confdefs.h in the current dir when this check 
 414       # is performed.
 415       filtered_files=`$ECHO "$files_present" | $SED -e 's/config.log//g' -e 's/confdefs.h//g' -e 's/ //g' \
 416                                              | $TR -d '\n'`
 417       if test "x$filtered_files" != x; then
 418         AC_MSG_NOTICE([Current directory is $CURDIR.])
 419         AC_MSG_NOTICE([Since this is not the source root, configure will output the configuration here])
 420         AC_MSG_NOTICE([(as opposed to creating a configuration in <src_root>/build/<conf-name>).])
 421         AC_MSG_NOTICE([However, this directory is not empty. This is not allowed, since it could])
 422         AC_MSG_NOTICE([seriously mess up just about everything.])
 423         AC_MSG_NOTICE([Try 'cd $SRC_ROOT' and restart configure])
 424         AC_MSG_NOTICE([(or create a new empty directory and cd to it).])
 425         AC_MSG_ERROR([Will not continue creating configuration in $CURDIR])
 426       fi
 427     fi
 428 fi
 429 AC_MSG_CHECKING([what configuration name to use])
 430 AC_MSG_RESULT([$CONF_NAME])
 431 
 432 BASIC_FIXUP_PATH(OUTPUT_ROOT)
 433 
 434 AC_SUBST(SPEC, $OUTPUT_ROOT/spec.gmk)
 435 AC_SUBST(CONF_NAME, $CONF_NAME)
 436 AC_SUBST(OUTPUT_ROOT, $OUTPUT_ROOT)
 437 
 438 # Most of the probed defines are put into config.h
 439 AC_CONFIG_HEADERS([$OUTPUT_ROOT/config.h:$AUTOCONF_DIR/config.h.in])
 440 # The spec.gmk file contains all variables for the make system.
 441 AC_CONFIG_FILES([$OUTPUT_ROOT/spec.gmk:$AUTOCONF_DIR/spec.gmk.in])
 442 # The hotspot-spec.gmk file contains legacy variables for the hotspot make system.
 443 AC_CONFIG_FILES([$OUTPUT_ROOT/hotspot-spec.gmk:$AUTOCONF_DIR/hotspot-spec.gmk.in])
 444 # The bootcycle-spec.gmk file contains support for boot cycle builds.
 445 AC_CONFIG_FILES([$OUTPUT_ROOT/bootcycle-spec.gmk:$AUTOCONF_DIR/bootcycle-spec.gmk.in])
 446 # The compare.sh is used to compare the build output to other builds.
 447 AC_CONFIG_FILES([$OUTPUT_ROOT/compare.sh:$AUTOCONF_DIR/compare.sh.in])
 448 # Spec.sh is currently used by compare-objects.sh
 449 AC_CONFIG_FILES([$OUTPUT_ROOT/spec.sh:$AUTOCONF_DIR/spec.sh.in])
 450 # The generated Makefile knows where the spec.gmk is and where the source is.
 451 # You can run make from the OUTPUT_ROOT, or from the top-level Makefile
 452 # which will look for generated configurations
 453 AC_CONFIG_FILES([$OUTPUT_ROOT/Makefile:$AUTOCONF_DIR/Makefile.in])
 454 
 455 # Save the arguments given to us
 456 echo "$CONFIGURE_COMMAND_LINE" > $OUTPUT_ROOT/configure-arguments
 457 ])
 458 
 459 AC_DEFUN_ONCE([BASIC_SETUP_LOGGING],
 460 [
 461 # Setup default logging of stdout and stderr to build.log in the output root.
 462 BUILD_LOG='$(OUTPUT_ROOT)/build.log'
 463 BUILD_LOG_PREVIOUS='$(OUTPUT_ROOT)/build.log.old'
 464 BUILD_LOG_WRAPPER='$(BASH) $(SRC_ROOT)/common/bin/logger.sh $(BUILD_LOG)'
 465 AC_SUBST(BUILD_LOG)
 466 AC_SUBST(BUILD_LOG_PREVIOUS)
 467 AC_SUBST(BUILD_LOG_WRAPPER)
 468 ])
 469 
 470 
 471 #%%% Simple tools %%%
 472 
 473 # Check if we have found a usable version of make
 474 # $1: the path to a potential make binary (or empty)
 475 # $2: the description on how we found this
 476 AC_DEFUN([BASIC_CHECK_MAKE_VERSION],
 477 [
 478   MAKE_CANDIDATE="$1"
 479   DESCRIPTION="$2"
 480   if test "x$MAKE_CANDIDATE" != x; then
 481     AC_MSG_NOTICE([Testing potential make at $MAKE_CANDIDATE, found using $DESCRIPTION])
 482     MAKE_VERSION_STRING=`$MAKE_CANDIDATE --version | $HEAD -n 1`
 483     IS_GNU_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP 'GNU Make'`
 484     if test "x$IS_GNU_MAKE" = x; then
 485       AC_MSG_NOTICE([Found potential make at $MAKE_CANDIDATE, however, this is not GNU Make. Ignoring.])
 486     else
 487       IS_MODERN_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP '3.8[[12346789]]'`
 488       if test "x$IS_MODERN_MAKE" = x; then
 489         AC_MSG_NOTICE([Found GNU make at $MAKE_CANDIDATE, however this is not version 3.81 or later. (it is: $MAKE_VERSION_STRING). Ignoring.])
 490       else
 491         if test "x$OPENJDK_BUILD_OS" = "xwindows"; then
 492           if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
 493             MAKE_EXPECTED_ENV='cygwin'
 494           elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
 495             MAKE_EXPECTED_ENV='msys'
 496           else
 497             AC_MSG_ERROR([Unknown Windows environment])
 498           fi
 499           MAKE_BUILT_FOR=`$MAKE_CANDIDATE --version | $GREP -i 'built for'`
 500           IS_MAKE_CORRECT_ENV=`$ECHO $MAKE_BUILT_FOR | $GREP $MAKE_EXPECTED_ENV`
 501         else
 502           # Not relevant for non-Windows
 503           IS_MAKE_CORRECT_ENV=true
 504         fi
 505         if test "x$IS_MAKE_CORRECT_ENV" = x; then
 506           AC_MSG_NOTICE([Found GNU make version $MAKE_VERSION_STRING at $MAKE_CANDIDATE, but it is not for $MAKE_EXPECTED_ENV (it says: $MAKE_BUILT_FOR). Ignoring.])
 507         else
 508           FOUND_MAKE=$MAKE_CANDIDATE
 509           BASIC_FIXUP_EXECUTABLE(FOUND_MAKE)
 510         fi
 511       fi
 512     fi
 513   fi
 514 ])
 515 
 516 # Goes looking for a usable version of GNU make.
 517 AC_DEFUN([BASIC_CHECK_GNU_MAKE],
 518 [
 519   # We need to find a recent version of GNU make. Especially on Solaris, this can be tricky.
 520   if test "x$MAKE" != x; then
 521     # User has supplied a make, test it.
 522     if test ! -f "$MAKE"; then
 523       AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not found.])
 524     fi
 525     BASIC_CHECK_MAKE_VERSION("$MAKE", [user supplied MAKE=$MAKE])
 526     if test "x$FOUND_MAKE" = x; then
 527       AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not GNU make 3.81 or newer.])
 528     fi
 529   else
 530     # Try our hardest to locate a correct version of GNU make
 531     AC_PATH_PROGS(CHECK_GMAKE, gmake)
 532     BASIC_CHECK_MAKE_VERSION("$CHECK_GMAKE", [gmake in PATH])
 533 
 534     if test "x$FOUND_MAKE" = x; then
 535       AC_PATH_PROGS(CHECK_MAKE, make)
 536       BASIC_CHECK_MAKE_VERSION("$CHECK_MAKE", [make in PATH])
 537     fi
 538 
 539     if test "x$FOUND_MAKE" = x; then
 540       if test "x$TOOLS_DIR" != x; then
 541         # We have a tools-dir, check that as well before giving up.
 542         OLD_PATH=$PATH
 543         PATH=$TOOLS_DIR:$PATH
 544         AC_PATH_PROGS(CHECK_TOOLSDIR_GMAKE, gmake)
 545         BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_GMAKE", [gmake in tools-dir])
 546         if test "x$FOUND_MAKE" = x; then
 547           AC_PATH_PROGS(CHECK_TOOLSDIR_MAKE, make)
 548           BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_MAKE", [make in tools-dir])
 549         fi
 550         PATH=$OLD_PATH
 551       fi
 552     fi
 553 
 554     if test "x$FOUND_MAKE" = x; then
 555       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.])
 556     fi
 557   fi
 558 
 559   MAKE=$FOUND_MAKE
 560   AC_SUBST(MAKE)
 561   AC_MSG_NOTICE([Using GNU make 3.81 (or later) at $FOUND_MAKE (version: $MAKE_VERSION_STRING)])
 562 ])
 563 
 564 AC_DEFUN([BASIC_CHECK_FIND_DELETE],
 565 [
 566     # Test if find supports -delete
 567     AC_MSG_CHECKING([if find supports -delete])
 568     FIND_DELETE="-delete"
 569 
 570     DELETEDIR=`$MKTEMP -d tmp.XXXXXXXXXX` || (echo Could not create temporary directory!; exit $?)
 571 
 572     echo Hejsan > $DELETEDIR/TestIfFindSupportsDelete
 573 
 574     TEST_DELETE=`$FIND "$DELETEDIR" -name TestIfFindSupportsDelete $FIND_DELETE 2>&1`
 575     if test -f $DELETEDIR/TestIfFindSupportsDelete; then
 576         # No, it does not.
 577         rm $DELETEDIR/TestIfFindSupportsDelete
 578         FIND_DELETE="-exec rm \{\} \+"
 579         AC_MSG_RESULT([no])    
 580     else
 581         AC_MSG_RESULT([yes])    
 582     fi
 583     rmdir $DELETEDIR
 584     AC_SUBST(FIND_DELETE)
 585 ])
 586 
 587 AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
 588 [
 589 BASIC_CHECK_GNU_MAKE
 590 
 591 BASIC_CHECK_FIND_DELETE
 592 
 593 # These tools might not be installed by default, 
 594 # need hint on how to install them.
 595 BASIC_REQUIRE_PROG(UNZIP, unzip)
 596 BASIC_REQUIRE_PROG(ZIP, zip)
 597 
 598 # Non-required basic tools
 599 
 600 AC_PATH_PROG(LDD, ldd)
 601 if test "x$LDD" = "x"; then
 602     # List shared lib dependencies is used for
 603     # debug output and checking for forbidden dependencies.
 604     # We can build without it.
 605     LDD="true"
 606 fi
 607 AC_PATH_PROG(OTOOL, otool)
 608 if test "x$OTOOL" = "x"; then
 609    OTOOL="true"
 610 fi
 611 AC_PATH_PROGS(READELF, [readelf greadelf])
 612 AC_PATH_PROG(HG, hg)
 613 AC_PATH_PROG(STAT, stat)
 614 AC_PATH_PROG(TIME, time)
 615 # Check if it's GNU time
 616 IS_GNU_TIME=`$TIME --version 2>&1 | $GREP 'GNU time'`
 617 if test "x$IS_GNU_TIME" != x; then
 618   IS_GNU_TIME=yes
 619 else
 620   IS_GNU_TIME=no
 621 fi
 622 AC_SUBST(IS_GNU_TIME)
 623 
 624 if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 625   BASIC_REQUIRE_PROG(COMM, comm)
 626 fi
 627 
 628 if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
 629   BASIC_REQUIRE_PROG(XATTR, xattr)
 630   AC_PATH_PROG(CODESIGN, codesign)
 631   if test "x$CODESIGN" != "x"; then
 632     # Verify that the openjdk_codesign certificate is present
 633     AC_MSG_CHECKING([if openjdk_codesign certificate is present])
 634     rm -f codesign-testfile
 635     touch codesign-testfile
 636     codesign -s openjdk_codesign codesign-testfile 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD || CODESIGN=
 637     rm -f codesign-testfile
 638     if test "x$CODESIGN" = x; then
 639       AC_MSG_RESULT([no])
 640     else
 641       AC_MSG_RESULT([yes])
 642     fi
 643   fi
 644 fi
 645 ])
 646 
 647 # Check if build directory is on local disk. If not possible to determine,
 648 # we prefer to claim it's local.
 649 # Argument 1: directory to test
 650 # Argument 2: what to do if it is on local disk
 651 # Argument 3: what to do otherwise (remote disk or failure)
 652 AC_DEFUN([BASIC_CHECK_DIR_ON_LOCAL_DISK],
 653 [
 654         # df -l lists only local disks; if the given directory is not found then
 655         # a non-zero exit code is given
 656   if test "x$DF" = x; then
 657     if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
 658       # msys does not have df; use Windows "net use" instead.
 659       IS_NETWORK_DISK=`net use | grep \`pwd -W | cut -d ":" -f 1 | tr a-z A-Z\`:`
 660       if test "x$IS_NETWORK_DISK" = x; then
 661         $2
 662       else
 663         $3
 664       fi
 665     else
 666       # No df here, say it's local
 667       $2
 668     fi
 669   else
 670     if $DF -l $1 > /dev/null 2>&1; then
 671       $2
 672     else
 673       $3
 674     fi
 675   fi
 676 ])
 677 
 678 # Check that source files have basic read permissions set. This might
 679 # not be the case in cygwin in certain conditions.
 680 AC_DEFUN_ONCE([BASIC_CHECK_SRC_PERMS],
 681 [
 682   if test x"$OPENJDK_BUILD_OS" = xwindows; then
 683     file_to_test="$SRC_ROOT/LICENSE"
 684     if test `$STAT -c '%a' "$file_to_test"` -lt 400; then
 685       AC_MSG_ERROR([Bad file permissions on src files. This is usually caused by cloning the repositories with a non cygwin hg in a directory not created in cygwin.])
 686     fi
 687   fi
 688 ])
 689 
 690 AC_DEFUN_ONCE([BASIC_TEST_USABILITY_ISSUES],
 691 [
 692 
 693 AC_MSG_CHECKING([if build directory is on local disk])
 694 BASIC_CHECK_DIR_ON_LOCAL_DISK($OUTPUT_ROOT,
 695   [OUTPUT_DIR_IS_LOCAL="yes"],
 696   [OUTPUT_DIR_IS_LOCAL="no"])
 697 AC_MSG_RESULT($OUTPUT_DIR_IS_LOCAL)
 698 
 699 BASIC_CHECK_SRC_PERMS
 700 
 701 # Check if the user has any old-style ALT_ variables set.
 702 FOUND_ALT_VARIABLES=`env | grep ^ALT_`
 703 
 704 # Before generating output files, test if they exist. If they do, this is a reconfigure.
 705 # Since we can't properly handle the dependencies for this, warn the user about the situation
 706 if test -e $OUTPUT_ROOT/spec.gmk; then
 707   IS_RECONFIGURE=yes
 708 else
 709   IS_RECONFIGURE=no
 710 fi
 711 
 712 if test -e $SRC_ROOT/build/.hide-configure-performance-hints; then
 713   HIDE_PERFORMANCE_HINTS=yes
 714 else
 715   HIDE_PERFORMANCE_HINTS=no
 716   # Hide it the next time around...
 717   $TOUCH $SRC_ROOT/build/.hide-configure-performance-hints > /dev/null 2>&1
 718 fi
 719 
 720 ])