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