1 #
   2 # Copyright (c) 2011, 2018, 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 ###############################################################################
  27 # Create a function/macro that takes a series of named arguments. The call is
  28 # similar to AC_DEFUN, but the setup of the function looks like this:
  29 # BASIC_DEFUN_NAMED([MYFUNC], [FOO *BAR], [$@], [
  30 # ... do something
  31 #   AC_MSG_NOTICE([Value of BAR is ARG_BAR])
  32 # ])
  33 # A star (*) in front of a named argument means that it is required and it's
  34 # presence will be verified. To pass e.g. the first value as a normal indexed
  35 # argument, use [m4_shift($@)] as the third argument instead of [$@]. These
  36 # arguments are referenced in the function by their name prefixed by ARG_, e.g.
  37 # "ARG_FOO".
  38 #
  39 # The generated function can be called like this:
  40 # MYFUNC(FOO: [foo-val],
  41 #     BAR: [
  42 #         $ECHO hello world
  43 #     ])
  44 # Note that the argument value must start on the same line as the argument name.
  45 #
  46 # Argument 1: Name of the function to define
  47 # Argument 2: List of legal named arguments, with a * prefix for required arguments
  48 # Argument 3: Argument array to treat as named, typically $@
  49 # Argument 4: The main function body
  50 AC_DEFUN([BASIC_DEFUN_NAMED],
  51 [
  52   AC_DEFUN($1, [
  53     m4_foreach(arg, m4_split($2), [
  54       m4_if(m4_bregexp(arg, [^\*]), -1,
  55         [
  56           m4_set_add(legal_named_args, arg)
  57         ],
  58         [
  59           m4_set_add(legal_named_args, m4_substr(arg, 1))
  60           m4_set_add(required_named_args, m4_substr(arg, 1))
  61         ]
  62       )
  63     ])
  64 
  65     m4_foreach([arg], [$3], [
  66       m4_define(arg_name, m4_substr(arg, 0, m4_bregexp(arg, [: ])))
  67       m4_set_contains(legal_named_args, arg_name, [],[AC_MSG_ERROR([Internal error: arg_name is not a valid named argument to [$1]. Valid arguments are 'm4_set_contents(legal_named_args, [ ])'.])])
  68       m4_set_remove(required_named_args, arg_name)
  69       m4_set_remove(legal_named_args, arg_name)
  70       m4_pushdef([ARG_][]arg_name, m4_substr(arg, m4_incr(m4_incr(m4_bregexp(arg, [: ])))))
  71       m4_set_add(defined_args, arg_name)
  72       m4_undefine([arg_name])
  73     ])
  74     m4_set_empty(required_named_args, [], [
  75       AC_MSG_ERROR([Internal error: Required named arguments are missing for [$1]. Missing arguments: 'm4_set_contents(required_named_args, [ ])'])
  76     ])
  77     m4_foreach([arg], m4_indir([m4_dquote]m4_set_listc([legal_named_args])), [
  78       m4_pushdef([ARG_][]arg, [])
  79       m4_set_add(defined_args, arg)
  80     ])
  81     m4_set_delete(legal_named_args)
  82     m4_set_delete(required_named_args)
  83 
  84     # Execute function body
  85     $4
  86 
  87     m4_foreach([arg], m4_indir([m4_dquote]m4_set_listc([defined_args])), [
  88       m4_popdef([ARG_][]arg)
  89     ])
  90 
  91     m4_set_delete(defined_args)
  92   ])
  93 ])
  94 
  95 ###############################################################################
  96 # Check if a list of space-separated words are selected only from a list of
  97 # space-separated legal words. Typical use is to see if a user-specified
  98 # set of words is selected from a set of legal words.
  99 #
 100 # Sets the specified variable to list of non-matching (offending) words, or to
 101 # the empty string if all words are matching the legal set.
 102 #
 103 # $1: result variable name
 104 # $2: list of values to check
 105 # $3: list of legal values
 106 AC_DEFUN([BASIC_GET_NON_MATCHING_VALUES],
 107 [
 108   # grep filter function inspired by a comment to http://stackoverflow.com/a/1617326
 109   # Notice that the original variant fails on SLES 10 and 11
 110   values_to_check=`$ECHO $2 | $TR ' ' '\n'`
 111   legal_values=`$ECHO $3 | $TR ' ' '\n'`
 112   result=`$GREP -Fvx "$legal_values" <<< "$values_to_check" | $GREP -v '^$'`
 113   $1=${result//$'\n'/ }
 114 ])
 115 
 116 ###############################################################################
 117 # Sort a space-separated list, and remove duplicates.
 118 #
 119 # Sets the specified variable to the resulting list.
 120 #
 121 # $1: result variable name
 122 # $2: list of values to sort
 123 AC_DEFUN([BASIC_SORT_LIST],
 124 [
 125   values_to_sort=`$ECHO $2 | $TR ' ' '\n'`
 126   result=`$SORT -u <<< "$values_to_sort" | $GREP -v '^$'`
 127   $1=${result//$'\n'/ }
 128 ])
 129 
 130 ###############################################################################
 131 # Test if $1 is a valid argument to $3 (often is $JAVA passed as $3)
 132 # If so, then append $1 to $2 \
 133 # Also set JVM_ARG_OK to true/false depending on outcome.
 134 AC_DEFUN([ADD_JVM_ARG_IF_OK],
 135 [
 136   $ECHO "Check if jvm arg is ok: $1" >&AS_MESSAGE_LOG_FD
 137   $ECHO "Command: $3 $1 -version" >&AS_MESSAGE_LOG_FD
 138   OUTPUT=`$3 $1 -version 2>&1`
 139   FOUND_WARN=`$ECHO "$OUTPUT" | $GREP -i warn`
 140   FOUND_VERSION=`$ECHO $OUTPUT | $GREP " version \""`
 141   if test "x$FOUND_VERSION" != x && test "x$FOUND_WARN" = x; then
 142     $2="[$]$2 $1"
 143     JVM_ARG_OK=true
 144   else
 145     $ECHO "Arg failed:" >&AS_MESSAGE_LOG_FD
 146     $ECHO "$OUTPUT" >&AS_MESSAGE_LOG_FD
 147     JVM_ARG_OK=false
 148   fi
 149 ])
 150 
 151 # Appends a string to a path variable, only adding the : when needed.
 152 AC_DEFUN([BASIC_APPEND_TO_PATH],
 153 [
 154   if test "x$2" != x; then
 155     if test "x[$]$1" = x; then
 156       $1="$2"
 157     else
 158       $1="[$]$1:$2"
 159     fi
 160   fi
 161 ])
 162 
 163 # Prepends a string to a path variable, only adding the : when needed.
 164 AC_DEFUN([BASIC_PREPEND_TO_PATH],
 165 [
 166   if test "x$2" != x; then
 167     if test "x[$]$1" = x; then
 168       $1="$2"
 169     else
 170       $1="$2:[$]$1"
 171     fi
 172   fi
 173 ])
 174 
 175 ###############################################################################
 176 # This will make sure the given variable points to a full and proper
 177 # path. This means:
 178 # 1) There will be no spaces in the path. On unix platforms,
 179 #    spaces in the path will result in an error. On Windows,
 180 #    the path will be rewritten using short-style to be space-free.
 181 # 2) The path will be absolute, and it will be in unix-style (on
 182 #     cygwin).
 183 # $1: The name of the variable to fix
 184 AC_DEFUN([BASIC_FIXUP_PATH],
 185 [
 186   # Only process if variable expands to non-empty
 187 
 188   if test "x[$]$1" != x; then
 189     if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
 190       BASIC_FIXUP_PATH_CYGWIN($1)
 191     elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
 192       BASIC_FIXUP_PATH_MSYS($1)
 193     else
 194       # We're on a unix platform. Hooray! :)
 195       path="[$]$1"
 196       has_space=`$ECHO "$path" | $GREP " "`
 197       if test "x$has_space" != x; then
 198         AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.])
 199         AC_MSG_ERROR([Spaces are not allowed in this path.])
 200       fi
 201 
 202       # Use eval to expand a potential ~
 203       eval path="$path"
 204       if test ! -f "$path" && test ! -d "$path"; then
 205         AC_MSG_ERROR([The path of $1, which resolves as "$path", is not found.])
 206       fi
 207 
 208       if test -d "$path"; then
 209         $1="`cd "$path"; $THEPWDCMD -L`"
 210       else
 211         dir="`$DIRNAME "$path"`"
 212         base="`$BASENAME "$path"`"
 213         $1="`cd "$dir"; $THEPWDCMD -L`/$base"
 214       fi
 215     fi
 216   fi
 217 ])
 218 
 219 ###############################################################################
 220 # This will make sure the given variable points to a executable
 221 # with a full and proper path. This means:
 222 # 1) There will be no spaces in the path. On unix platforms,
 223 #    spaces in the path will result in an error. On Windows,
 224 #    the path will be rewritten using short-style to be space-free.
 225 # 2) The path will be absolute, and it will be in unix-style (on
 226 #     cygwin).
 227 # Any arguments given to the executable is preserved.
 228 # If the input variable does not have a directory specification, then
 229 # it need to be in the PATH.
 230 # $1: The name of the variable to fix
 231 AC_DEFUN([BASIC_FIXUP_EXECUTABLE],
 232 [
 233   # Only process if variable expands to non-empty
 234 
 235   if test "x[$]$1" != x; then
 236     if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
 237       BASIC_FIXUP_EXECUTABLE_CYGWIN($1)
 238     elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
 239       BASIC_FIXUP_EXECUTABLE_MSYS($1)
 240     else
 241       # We're on a unix platform. Hooray! :)
 242       # First separate the path from the arguments. This will split at the first
 243       # space.
 244       complete="[$]$1"
 245       path="${complete%% *}"
 246       tmp="$complete EOL"
 247       arguments="${tmp#* }"
 248 
 249       # Cannot rely on the command "which" here since it doesn't always work.
 250       is_absolute_path=`$ECHO "$path" | $GREP ^/`
 251       if test -z "$is_absolute_path"; then
 252         # Path to executable is not absolute. Find it.
 253         IFS_save="$IFS"
 254         IFS=:
 255         for p in $PATH; do
 256           if test -f "$p/$path" && test -x "$p/$path"; then
 257             new_path="$p/$path"
 258             break
 259           fi
 260         done
 261         IFS="$IFS_save"
 262       else
 263         # This is an absolute path, we can use it without further modifications.
 264         new_path="$path"
 265       fi
 266 
 267       if test "x$new_path" = x; then
 268         AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
 269         has_space=`$ECHO "$complete" | $GREP " "`
 270         if test "x$has_space" != x; then
 271           AC_MSG_NOTICE([This might be caused by spaces in the path, which is not allowed.])
 272         fi
 273         AC_MSG_ERROR([Cannot locate the the path of $1])
 274       fi
 275     fi
 276 
 277     # Now join together the path and the arguments once again
 278     if test "x$arguments" != xEOL; then
 279       new_complete="$new_path ${arguments% *}"
 280     else
 281       new_complete="$new_path"
 282     fi
 283 
 284     if test "x$complete" != "x$new_complete"; then
 285       $1="$new_complete"
 286       AC_MSG_NOTICE([Rewriting $1 to "$new_complete"])
 287     fi
 288   fi
 289 ])
 290 
 291 ###############################################################################
 292 AC_DEFUN([BASIC_REMOVE_SYMBOLIC_LINKS],
 293 [
 294   if test "x$OPENJDK_BUILD_OS" != xwindows; then
 295     # Follow a chain of symbolic links. Use readlink
 296     # where it exists, else fall back to horribly
 297     # complicated shell code.
 298     if test "x$READLINK_TESTED" != yes; then
 299       # On MacOSX there is a readlink tool with a different
 300       # purpose than the GNU readlink tool. Check the found readlink.
 301       READLINK_ISGNU=`$READLINK --version 2>&1 | $GREP GNU`
 302       # If READLINK_ISGNU is empty, then it's a non-GNU readlink. Don't use it.
 303       READLINK_TESTED=yes
 304     fi
 305 
 306     if test "x$READLINK" != x && test "x$READLINK_ISGNU" != x; then
 307       $1=`$READLINK -f [$]$1`
 308     else
 309       # Save the current directory for restoring afterwards
 310       STARTDIR=$PWD
 311       COUNTER=0
 312       sym_link_dir=`$DIRNAME [$]$1`
 313       sym_link_file=`$BASENAME [$]$1`
 314       cd $sym_link_dir
 315       # Use -P flag to resolve symlinks in directories.
 316       cd `$THEPWDCMD -P`
 317       sym_link_dir=`$THEPWDCMD -P`
 318       # Resolve file symlinks
 319       while test $COUNTER -lt 20; do
 320         ISLINK=`$LS -l $sym_link_dir/$sym_link_file | $GREP '\->' | $SED -e 's/.*-> \(.*\)/\1/'`
 321         if test "x$ISLINK" == x; then
 322           # This is not a symbolic link! We are done!
 323           break
 324         fi
 325         # Again resolve directory symlinks since the target of the just found
 326         # link could be in a different directory
 327         cd `$DIRNAME $ISLINK`
 328         sym_link_dir=`$THEPWDCMD -P`
 329         sym_link_file=`$BASENAME $ISLINK`
 330         let COUNTER=COUNTER+1
 331       done
 332       cd $STARTDIR
 333       $1=$sym_link_dir/$sym_link_file
 334     fi
 335   fi
 336 ])
 337 
 338 ###############################################################################
 339 # Register a --with argument but mark it as deprecated
 340 # $1: The name of the with argument to deprecate, not including --with-
 341 AC_DEFUN([BASIC_DEPRECATED_ARG_WITH],
 342 [
 343   AC_ARG_WITH($1, [AS_HELP_STRING([--with-$1],
 344       [Deprecated. Option is kept for backwards compatibility and is ignored])],
 345       [AC_MSG_WARN([Option --with-$1 is deprecated and will be ignored.])])
 346 ])
 347 
 348 ###############################################################################
 349 # Register a --enable argument but mark it as deprecated
 350 # $1: The name of the with argument to deprecate, not including --enable-
 351 # $2: The name of the argument to deprecate, in shell variable style (i.e. with _ instead of -)
 352 # $3: Messages to user.
 353 AC_DEFUN([BASIC_DEPRECATED_ARG_ENABLE],
 354 [
 355   AC_ARG_ENABLE($1, [AS_HELP_STRING([--enable-$1],
 356       [Deprecated. Option is kept for backwards compatibility and is ignored])])
 357   if test "x$enable_$2" != x; then
 358     AC_MSG_WARN([Option --enable-$1 is deprecated and will be ignored.])
 359 
 360     if test "x$3" != x; then
 361       AC_MSG_WARN([$3])
 362     fi
 363 
 364   fi
 365 ])
 366 
 367 ###############################################################################
 368 AC_DEFUN_ONCE([BASIC_INIT],
 369 [
 370   # Save the original command line. This is passed to us by the wrapper configure script.
 371   AC_SUBST(CONFIGURE_COMMAND_LINE)
 372   # Save the path variable before it gets changed
 373   ORIGINAL_PATH="$PATH"
 374   AC_SUBST(ORIGINAL_PATH)
 375   DATE_WHEN_CONFIGURED=`LANG=C date`
 376   AC_SUBST(DATE_WHEN_CONFIGURED)
 377   AC_MSG_NOTICE([Configuration created at $DATE_WHEN_CONFIGURED.])
 378 ])
 379 
 380 ###############################################################################
 381 # Test that variable $1 denoting a program is not empty. If empty, exit with an error.
 382 # $1: variable to check
 383 AC_DEFUN([BASIC_CHECK_NONEMPTY],
 384 [
 385   if test "x[$]$1" = x; then
 386     AC_MSG_ERROR([Could not find required tool for $1])
 387   fi
 388 ])
 389 
 390 ###############################################################################
 391 # Check that there are no unprocessed overridden variables left.
 392 # If so, they are an incorrect argument and we will exit with an error.
 393 AC_DEFUN([BASIC_CHECK_LEFTOVER_OVERRIDDEN],
 394 [
 395   if test "x$CONFIGURE_OVERRIDDEN_VARIABLES" != x; then
 396     # Replace the separating ! with spaces before presenting for end user.
 397     unknown_variables=${CONFIGURE_OVERRIDDEN_VARIABLES//!/ }
 398     AC_MSG_WARN([The following variables might be unknown to configure: $unknown_variables])
 399   fi
 400 ])
 401 
 402 ###############################################################################
 403 # Setup a tool for the given variable. If correctly specified by the user,
 404 # use that value, otherwise search for the tool using the supplied code snippet.
 405 # $1: variable to set
 406 # $2: code snippet to call to look for the tool
 407 # $3: code snippet to call if variable was used to find tool
 408 AC_DEFUN([BASIC_SETUP_TOOL],
 409 [
 410   # Publish this variable in the help.
 411   AC_ARG_VAR($1, [Override default value for $1])
 412 
 413   if [[ -z "${$1+x}" ]]; then
 414     # The variable is not set by user, try to locate tool using the code snippet
 415     $2
 416   else
 417     # The variable is set, but is it from the command line or the environment?
 418 
 419     # Try to remove the string !$1! from our list.
 420     try_remove_var=${CONFIGURE_OVERRIDDEN_VARIABLES//!$1!/}
 421     if test "x$try_remove_var" = "x$CONFIGURE_OVERRIDDEN_VARIABLES"; then
 422       # If it failed, the variable was not from the command line. Ignore it,
 423       # but warn the user (except for BASH, which is always set by the calling BASH).
 424       if test "x$1" != xBASH; then
 425         AC_MSG_WARN([Ignoring value of $1 from the environment. Use command line variables instead.])
 426       fi
 427       # Try to locate tool using the code snippet
 428       $2
 429     else
 430       # If it succeeded, then it was overridden by the user. We will use it
 431       # for the tool.
 432 
 433       # First remove it from the list of overridden variables, so we can test
 434       # for unknown variables in the end.
 435       CONFIGURE_OVERRIDDEN_VARIABLES="$try_remove_var"
 436 
 437       # Check if we try to supply an empty value
 438       if test "x[$]$1" = x; then
 439         AC_MSG_NOTICE([Setting user supplied tool $1= (no value)])
 440         AC_MSG_CHECKING([for $1])
 441         AC_MSG_RESULT([disabled])
 442       else
 443         # Check if the provided tool contains a complete path.
 444         tool_specified="[$]$1"
 445         tool_basename="${tool_specified##*/}"
 446         if test "x$tool_basename" = "x$tool_specified"; then
 447           # A command without a complete path is provided, search $PATH.
 448           AC_MSG_NOTICE([Will search for user supplied tool $1=$tool_basename])
 449           AC_PATH_PROG($1, $tool_basename)
 450           if test "x[$]$1" = x; then
 451             AC_MSG_ERROR([User supplied tool $tool_basename could not be found])
 452           fi
 453         else
 454           # Otherwise we believe it is a complete path. Use it as it is.
 455           AC_MSG_NOTICE([Will use user supplied tool $1=$tool_specified])
 456           AC_MSG_CHECKING([for $1])
 457           if test ! -x "$tool_specified"; then
 458             AC_MSG_RESULT([not found])
 459             AC_MSG_ERROR([User supplied tool $1=$tool_specified does not exist or is not executable])
 460           fi
 461           AC_MSG_RESULT([$tool_specified])
 462         fi
 463       fi
 464     fi
 465     $3
 466   fi
 467 ])
 468 
 469 ###############################################################################
 470 # Call BASIC_SETUP_TOOL with AC_PATH_PROGS to locate the tool
 471 # $1: variable to set
 472 # $2: executable name (or list of names) to look for
 473 # $3: [path]
 474 AC_DEFUN([BASIC_PATH_PROGS],
 475 [
 476   BASIC_SETUP_TOOL($1, [AC_PATH_PROGS($1, $2, , $3)])
 477 ])
 478 
 479 ###############################################################################
 480 # Call BASIC_SETUP_TOOL with AC_CHECK_TOOLS to locate the tool
 481 # $1: variable to set
 482 # $2: executable name (or list of names) to look for
 483 AC_DEFUN([BASIC_CHECK_TOOLS],
 484 [
 485   BASIC_SETUP_TOOL($1, [AC_CHECK_TOOLS($1, $2)])
 486 ])
 487 
 488 ###############################################################################
 489 # Like BASIC_PATH_PROGS but fails if no tool was found.
 490 # $1: variable to set
 491 # $2: executable name (or list of names) to look for
 492 # $3: [path]
 493 AC_DEFUN([BASIC_REQUIRE_PROGS],
 494 [
 495   BASIC_PATH_PROGS($1, $2, , $3)
 496   BASIC_CHECK_NONEMPTY($1)
 497 ])
 498 
 499 ###############################################################################
 500 # Like BASIC_SETUP_TOOL but fails if no tool was found.
 501 # $1: variable to set
 502 # $2: autoconf macro to call to look for the special tool
 503 AC_DEFUN([BASIC_REQUIRE_SPECIAL],
 504 [
 505   BASIC_SETUP_TOOL($1, [$2])
 506   BASIC_CHECK_NONEMPTY($1)
 507 ])
 508 
 509 ###############################################################################
 510 # Setup the most fundamental tools that relies on not much else to set up,
 511 # but is used by much of the early bootstrap code.
 512 AC_DEFUN_ONCE([BASIC_SETUP_FUNDAMENTAL_TOOLS],
 513 [
 514   # Start with tools that do not need have cross compilation support
 515   # and can be expected to be found in the default PATH. These tools are
 516   # used by configure.
 517 
 518   # First are all the simple required tools.
 519   BASIC_REQUIRE_PROGS(BASENAME, basename)
 520   BASIC_REQUIRE_PROGS(BASH, bash)
 521   BASIC_REQUIRE_PROGS(CAT, cat)
 522   BASIC_REQUIRE_PROGS(CHMOD, chmod)
 523   BASIC_REQUIRE_PROGS(CMP, cmp)
 524   BASIC_REQUIRE_PROGS(COMM, comm)
 525   BASIC_REQUIRE_PROGS(CP, cp)
 526   BASIC_REQUIRE_PROGS(CUT, cut)
 527   BASIC_REQUIRE_PROGS(DATE, date)
 528   BASIC_REQUIRE_PROGS(DIFF, [gdiff diff])
 529   BASIC_REQUIRE_PROGS(DIRNAME, dirname)
 530   BASIC_REQUIRE_PROGS(ECHO, echo)
 531   BASIC_REQUIRE_PROGS(EXPR, expr)
 532   BASIC_REQUIRE_PROGS(FILE, file)
 533   BASIC_REQUIRE_PROGS(FIND, find)
 534   BASIC_REQUIRE_PROGS(HEAD, head)
 535   BASIC_REQUIRE_PROGS(GUNZIP, gunzip)
 536   BASIC_REQUIRE_PROGS(GZIP, pigz gzip)
 537   BASIC_REQUIRE_PROGS(LN, ln)
 538   BASIC_REQUIRE_PROGS(LS, ls)
 539   BASIC_REQUIRE_PROGS(MKDIR, mkdir)
 540   BASIC_REQUIRE_PROGS(MKTEMP, mktemp)
 541   BASIC_REQUIRE_PROGS(MV, mv)
 542   BASIC_REQUIRE_PROGS(NAWK, [nawk gawk awk])
 543   BASIC_REQUIRE_PROGS(PRINTF, printf)
 544   BASIC_REQUIRE_PROGS(READLINK, [greadlink readlink])
 545   BASIC_REQUIRE_PROGS(RM, rm)
 546   BASIC_REQUIRE_PROGS(RMDIR, rmdir)
 547   BASIC_REQUIRE_PROGS(SH, sh)
 548   BASIC_REQUIRE_PROGS(SORT, sort)
 549   BASIC_REQUIRE_PROGS(TAIL, tail)
 550   BASIC_REQUIRE_PROGS(TAR, gtar tar)
 551   BASIC_REQUIRE_PROGS(TEE, tee)
 552   BASIC_REQUIRE_PROGS(TOUCH, touch)
 553   BASIC_REQUIRE_PROGS(TR, tr)
 554   BASIC_REQUIRE_PROGS(UNAME, uname)
 555   BASIC_REQUIRE_PROGS(UNIQ, uniq)
 556   BASIC_REQUIRE_PROGS(WC, wc)
 557   BASIC_REQUIRE_PROGS(WHICH, which)
 558   BASIC_REQUIRE_PROGS(XARGS, xargs)
 559 
 560   # Then required tools that require some special treatment.
 561   BASIC_REQUIRE_SPECIAL(AWK, [AC_PROG_AWK])
 562   BASIC_REQUIRE_SPECIAL(GREP, [AC_PROG_GREP])
 563   BASIC_REQUIRE_SPECIAL(EGREP, [AC_PROG_EGREP])
 564   BASIC_REQUIRE_SPECIAL(FGREP, [AC_PROG_FGREP])
 565   BASIC_REQUIRE_SPECIAL(SED, [AC_PROG_SED])
 566 
 567   # Always force rm.
 568   RM="$RM -f"
 569 
 570   # pwd behaves differently on various platforms and some don't support the -L flag.
 571   # Always use the bash builtin pwd to get uniform behavior.
 572   THEPWDCMD=pwd
 573 
 574   # These are not required on all platforms
 575   BASIC_PATH_PROGS(CYGPATH, cygpath)
 576   BASIC_PATH_PROGS(DF, df)
 577   BASIC_PATH_PROGS(CPIO, [cpio bsdcpio])
 578   BASIC_PATH_PROGS(NICE, nice)
 579   BASIC_PATH_PROGS(PANDOC, pandoc)
 580 ])
 581 
 582 ###############################################################################
 583 # Setup basic configuration paths, and platform-specific stuff related to PATHs.
 584 AC_DEFUN_ONCE([BASIC_SETUP_PATHS],
 585 [
 586   # Save the current directory this script was started from
 587   CURDIR="$PWD"
 588 
 589   # We might need to rewrite ORIGINAL_PATH, if it includes "#", to quote them
 590   # for make. We couldn't do this when we retrieved ORIGINAL_PATH, since SED
 591   # was not available at that time.
 592   REWRITTEN_PATH=`$ECHO "$ORIGINAL_PATH" | $SED -e 's/#/\\\\#/g'`
 593   if test "x$REWRITTEN_PATH" != "x$ORIGINAL_PATH"; then
 594     ORIGINAL_PATH="$REWRITTEN_PATH"
 595     AC_MSG_NOTICE([Rewriting ORIGINAL_PATH to $REWRITTEN_PATH])
 596   fi
 597 
 598   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 599     PATH_SEP=";"
 600     BASIC_CHECK_PATHS_WINDOWS
 601   else
 602     PATH_SEP=":"
 603   fi
 604   AC_SUBST(PATH_SEP)
 605 
 606   # We get the top-level directory from the supporting wrappers.
 607   AC_MSG_CHECKING([for top-level directory])
 608   AC_MSG_RESULT([$TOPDIR])
 609   AC_SUBST(TOPDIR)
 610 
 611   # We can only call BASIC_FIXUP_PATH after BASIC_CHECK_PATHS_WINDOWS.
 612   BASIC_FIXUP_PATH(CURDIR)
 613   BASIC_FIXUP_PATH(TOPDIR)
 614 
 615   # Locate the directory of this script.
 616   AUTOCONF_DIR=$TOPDIR/make/autoconf
 617 
 618   # Setup username (for use in adhoc version strings etc)
 619   # Outer [ ] to quote m4.
 620   [ USERNAME=`$ECHO "$USER" | $TR -d -c '[a-z][A-Z][0-9]'` ]
 621   AC_SUBST(USERNAME)
 622 ])
 623 
 624 ###############################################################################
 625 # Evaluates platform specific overrides for devkit variables.
 626 # $1: Name of variable
 627 AC_DEFUN([BASIC_EVAL_DEVKIT_VARIABLE],
 628 [
 629   if test "x[$]$1" = x; then
 630     eval $1="\${$1_${OPENJDK_TARGET_CPU}}"
 631   fi
 632 ])
 633 
 634 ###############################################################################
 635 AC_DEFUN_ONCE([BASIC_SETUP_DEVKIT],
 636 [
 637   AC_ARG_WITH([devkit], [AS_HELP_STRING([--with-devkit],
 638       [use this devkit for compilers, tools and resources])])
 639 
 640   if test "x$with_devkit" = xyes; then
 641     AC_MSG_ERROR([--with-devkit must have a value])
 642   elif test "x$with_devkit" != x && test "x$with_devkit" != xno; then
 643     BASIC_FIXUP_PATH([with_devkit])
 644     DEVKIT_ROOT="$with_devkit"
 645     # Check for a meta data info file in the root of the devkit
 646     if test -f "$DEVKIT_ROOT/devkit.info"; then
 647       . $DEVKIT_ROOT/devkit.info
 648       # This potentially sets the following:
 649       # A descriptive name of the devkit
 650       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_NAME])
 651       # Corresponds to --with-extra-path
 652       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_EXTRA_PATH])
 653       # Corresponds to --with-toolchain-path
 654       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_TOOLCHAIN_PATH])
 655       # Corresponds to --with-sysroot
 656       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_SYSROOT])
 657 
 658       # Identifies the Visual Studio version in the devkit
 659       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_VS_VERSION])
 660       # The Visual Studio include environment variable
 661       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_VS_INCLUDE])
 662       # The Visual Studio lib environment variable
 663       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_VS_LIB])
 664       # Corresponds to --with-msvcr-dll
 665       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_MSVCR_DLL])
 666       # Corresponds to --with-msvcp-dll
 667       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_MSVCP_DLL])
 668     fi
 669 
 670     AC_MSG_CHECKING([for devkit])
 671     if test "x$DEVKIT_NAME" != x; then
 672       AC_MSG_RESULT([$DEVKIT_NAME in $DEVKIT_ROOT])
 673     else
 674       AC_MSG_RESULT([$DEVKIT_ROOT])
 675     fi
 676 
 677     BASIC_PREPEND_TO_PATH([EXTRA_PATH],$DEVKIT_EXTRA_PATH)
 678 
 679     # Fallback default of just /bin if DEVKIT_PATH is not defined
 680     if test "x$DEVKIT_TOOLCHAIN_PATH" = x; then
 681       DEVKIT_TOOLCHAIN_PATH="$DEVKIT_ROOT/bin"
 682     fi
 683     BASIC_PREPEND_TO_PATH([TOOLCHAIN_PATH],$DEVKIT_TOOLCHAIN_PATH)
 684 
 685     # If DEVKIT_SYSROOT is set, use that, otherwise try a couple of known
 686     # places for backwards compatiblity.
 687     if test "x$DEVKIT_SYSROOT" != x; then
 688       SYSROOT="$DEVKIT_SYSROOT"
 689     elif test -d "$DEVKIT_ROOT/$host_alias/libc"; then
 690       SYSROOT="$DEVKIT_ROOT/$host_alias/libc"
 691     elif test -d "$DEVKIT_ROOT/$host/sys-root"; then
 692       SYSROOT="$DEVKIT_ROOT/$host/sys-root"
 693     fi
 694 
 695     if test "x$DEVKIT_ROOT" != x; then
 696       DEVKIT_LIB_DIR="$DEVKIT_ROOT/lib"
 697       if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
 698         DEVKIT_LIB_DIR="$DEVKIT_ROOT/lib64"
 699       fi
 700       AC_SUBST(DEVKIT_LIB_DIR)
 701     fi
 702   fi
 703 
 704   # You can force the sysroot if the sysroot encoded into the compiler tools
 705   # is not correct.
 706   AC_ARG_WITH(sys-root, [AS_HELP_STRING([--with-sys-root],
 707       [alias for --with-sysroot for backwards compatability])],
 708       [SYSROOT=$with_sys_root]
 709   )
 710 
 711   AC_ARG_WITH(sysroot, [AS_HELP_STRING([--with-sysroot],
 712       [use this directory as sysroot])],
 713       [SYSROOT=$with_sysroot]
 714   )
 715 
 716   AC_ARG_WITH([tools-dir], [AS_HELP_STRING([--with-tools-dir],
 717       [alias for --with-toolchain-path for backwards compatibility])],
 718       [BASIC_PREPEND_TO_PATH([TOOLCHAIN_PATH],$with_tools_dir)]
 719   )
 720 
 721   AC_ARG_WITH([toolchain-path], [AS_HELP_STRING([--with-toolchain-path],
 722       [prepend these directories when searching for toolchain binaries (compilers etc)])],
 723       [BASIC_PREPEND_TO_PATH([TOOLCHAIN_PATH],$with_toolchain_path)]
 724   )
 725 
 726   AC_ARG_WITH([extra-path], [AS_HELP_STRING([--with-extra-path],
 727       [prepend these directories to the default path])],
 728       [BASIC_PREPEND_TO_PATH([EXTRA_PATH],$with_extra_path)]
 729   )
 730 
 731   if test "x$OPENJDK_BUILD_OS" = "xmacosx"; then
 732     # If a devkit has been supplied, find xcodebuild in the toolchain_path.
 733     # If not, detect if Xcode is installed by running xcodebuild -version
 734     # if no Xcode installed, xcodebuild exits with 1
 735     # if Xcode is installed, even if xcode-select is misconfigured, then it exits with 0
 736     if test "x$DEVKIT_ROOT" != x || /usr/bin/xcodebuild -version >/dev/null 2>&1; then
 737       # We need to use xcodebuild in the toolchain dir provided by the user, this will
 738       # fall back on the stub binary in /usr/bin/xcodebuild
 739       AC_PATH_PROG([XCODEBUILD], [xcodebuild], [/usr/bin/xcodebuild], [$TOOLCHAIN_PATH])
 740     else
 741       # this should result in SYSROOT being empty, unless --with-sysroot is provided
 742       # when only the command line tools are installed there are no SDKs, so headers
 743       # are copied into the system frameworks
 744       XCODEBUILD=
 745       AC_SUBST(XCODEBUILD)
 746     fi
 747 
 748     AC_MSG_CHECKING([for sdk name])
 749     AC_ARG_WITH([sdk-name], [AS_HELP_STRING([--with-sdk-name],
 750         [use the platform SDK of the given name. @<:@macosx@:>@])],
 751         [SDKNAME=$with_sdk_name]
 752     )
 753     AC_MSG_RESULT([$SDKNAME])
 754 
 755     # if toolchain path is specified then don't rely on system headers, they may not compile
 756     HAVE_SYSTEM_FRAMEWORK_HEADERS=0
 757     test -z "$TOOLCHAIN_PATH" && \
 758       HAVE_SYSTEM_FRAMEWORK_HEADERS=`test ! -f /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h; echo $?`
 759 
 760     if test -z "$SYSROOT"; then
 761       if test -n "$XCODEBUILD"; then
 762         # if we don't have system headers, use default SDK name (last resort)
 763         if test -z "$SDKNAME" -a $HAVE_SYSTEM_FRAMEWORK_HEADERS -eq 0; then
 764           SDKNAME=${SDKNAME:-macosx}
 765         fi
 766 
 767         if test -n "$SDKNAME"; then
 768           # Call xcodebuild to determine SYSROOT
 769           SYSROOT=`"$XCODEBUILD" -sdk $SDKNAME -version | $GREP '^Path: ' | $SED 's/Path: //'`
 770         fi
 771       else
 772         if test $HAVE_SYSTEM_FRAMEWORK_HEADERS -eq 0; then
 773           AC_MSG_ERROR([No xcodebuild tool and no system framework headers found, use --with-sysroot or --with-sdk-name to provide a path to a valid SDK])
 774         fi
 775       fi
 776     else
 777       # warn user if --with-sdk-name was also set
 778       if test -n "$with_sdk_name"; then
 779         AC_MSG_WARN([Both SYSROOT and --with-sdk-name are set, only SYSROOT will be used])
 780       fi
 781     fi
 782 
 783     if test $HAVE_SYSTEM_FRAMEWORK_HEADERS -eq 0 -a -z "$SYSROOT"; then
 784       # If no system framework headers, then SYSROOT must be set, or we won't build
 785       AC_MSG_ERROR([Unable to determine SYSROOT and no headers found in /System/Library/Frameworks. Check Xcode configuration, --with-sysroot or --with-sdk-name arguments.])
 786     fi
 787 
 788     # Perform a basic sanity test
 789     if test ! -f "$SYSROOT/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h"; then
 790       if test -z "$SYSROOT"; then
 791         AC_MSG_ERROR([Unable to find required framework headers, provide a path to an SDK via --with-sysroot or --with-sdk-name and be sure Xcode is installed properly])
 792       else
 793         AC_MSG_ERROR([Invalid SDK or SYSROOT path, dependent framework headers not found])
 794       fi
 795     fi
 796 
 797     # set SDKROOT too, Xcode tools will pick it up
 798     SDKROOT="$SYSROOT"
 799     AC_SUBST(SDKROOT)
 800   fi
 801 
 802   # Prepend the extra path to the global path
 803   BASIC_PREPEND_TO_PATH([PATH],$EXTRA_PATH)
 804 
 805   AC_MSG_CHECKING([for sysroot])
 806   AC_MSG_RESULT([$SYSROOT])
 807   AC_MSG_CHECKING([for toolchain path])
 808   AC_MSG_RESULT([$TOOLCHAIN_PATH])
 809   AC_MSG_CHECKING([for extra path])
 810   AC_MSG_RESULT([$EXTRA_PATH])
 811 ])
 812 
 813 ###############################################################################
 814 AC_DEFUN_ONCE([BASIC_SETUP_OUTPUT_DIR],
 815 [
 816 
 817   AC_ARG_WITH(conf-name, [AS_HELP_STRING([--with-conf-name],
 818       [use this as the name of the configuration @<:@generated from important configuration options@:>@])],
 819       [ CONF_NAME=${with_conf_name} ])
 820 
 821   # Test from where we are running configure, in or outside of src root.
 822   AC_MSG_CHECKING([where to store configuration])
 823   if test "x$CURDIR" = "x$TOPDIR" || test "x$CURDIR" = "x$CUSTOM_ROOT" \
 824       || test "x$CURDIR" = "x$TOPDIR/make/autoconf" \
 825       || test "x$CURDIR" = "x$TOPDIR/make" ; then
 826     # We are running configure from the src root.
 827     # Create a default ./build/target-variant-debuglevel output root.
 828     if test "x${CONF_NAME}" = x; then
 829       AC_MSG_RESULT([in default location])
 830       CONF_NAME="${OPENJDK_TARGET_OS}-${OPENJDK_TARGET_CPU}-${JDK_VARIANT}-${JVM_VARIANTS_WITH_AND}-${DEBUG_LEVEL}"
 831     else
 832       AC_MSG_RESULT([in build directory with custom name])
 833     fi
 834 
 835     if test "x$CUSTOM_ROOT" != x; then
 836       OUTPUTDIR="${CUSTOM_ROOT}/build/${CONF_NAME}"
 837     else
 838       OUTPUTDIR="${TOPDIR}/build/${CONF_NAME}"
 839     fi
 840     $MKDIR -p "$OUTPUTDIR"
 841     if test ! -d "$OUTPUTDIR"; then
 842       AC_MSG_ERROR([Could not create build directory $OUTPUTDIR])
 843     fi
 844   else
 845     # We are running configure from outside of the src dir.
 846     # Then use the current directory as output dir!
 847     # If configuration is situated in normal build directory, just use the build
 848     # directory name as configuration name, otherwise use the complete path.
 849     if test "x${CONF_NAME}" = x; then
 850       CONF_NAME=`$ECHO $CURDIR | $SED -e "s!^${TOPDIR}/build/!!"`
 851     fi
 852     OUTPUTDIR="$CURDIR"
 853     AC_MSG_RESULT([in current directory])
 854 
 855     # WARNING: This might be a bad thing to do. You need to be sure you want to
 856     # have a configuration in this directory. Do some sanity checks!
 857 
 858     if test ! -e "$OUTPUTDIR/spec.gmk"; then
 859       # If we have a spec.gmk, we have run here before and we are OK. Otherwise, check for
 860       # other files
 861       files_present=`$LS $OUTPUTDIR`
 862       # Configure has already touched config.log and confdefs.h in the current dir when this check
 863       # is performed.
 864       filtered_files=`$ECHO "$files_present" \
 865           | $SED -e 's/config.log//g' \
 866               -e 's/configure.log//g' \
 867               -e 's/confdefs.h//g' \
 868               -e 's/configure-support//g' \
 869               -e 's/ //g' \
 870           | $TR -d '\n'`
 871       if test "x$filtered_files" != x; then
 872         AC_MSG_NOTICE([Current directory is $CURDIR.])
 873         AC_MSG_NOTICE([Since this is not the source root, configure will output the configuration here])
 874         AC_MSG_NOTICE([(as opposed to creating a configuration in <src_root>/build/<conf-name>).])
 875         AC_MSG_NOTICE([However, this directory is not empty. This is not allowed, since it could])
 876         AC_MSG_NOTICE([seriously mess up just about everything.])
 877         AC_MSG_NOTICE([Try 'cd $TOPDIR' and restart configure])
 878         AC_MSG_NOTICE([(or create a new empty directory and cd to it).])
 879         AC_MSG_ERROR([Will not continue creating configuration in $CURDIR])
 880       fi
 881     fi
 882   fi
 883   AC_MSG_CHECKING([what configuration name to use])
 884   AC_MSG_RESULT([$CONF_NAME])
 885 
 886   BASIC_FIXUP_PATH(OUTPUTDIR)
 887 
 888   CONFIGURESUPPORT_OUTPUTDIR="$OUTPUTDIR/configure-support"
 889   $MKDIR -p "$CONFIGURESUPPORT_OUTPUTDIR"
 890 
 891   SPEC="$OUTPUTDIR/spec.gmk"
 892   AC_SUBST(SPEC)
 893   AC_SUBST(CONF_NAME)
 894   AC_SUBST(OUTPUTDIR)
 895   AC_SUBST(CONFIGURESUPPORT_OUTPUTDIR)
 896 
 897   # The spec.gmk file contains all variables for the make system.
 898   AC_CONFIG_FILES([$OUTPUTDIR/spec.gmk:$AUTOCONF_DIR/spec.gmk.in])
 899   # The bootcycle-spec.gmk file contains support for boot cycle builds.
 900   AC_CONFIG_FILES([$OUTPUTDIR/bootcycle-spec.gmk:$AUTOCONF_DIR/bootcycle-spec.gmk.in])
 901   # The buildjdk-spec.gmk file contains support for building a buildjdk when cross compiling.
 902   AC_CONFIG_FILES([$OUTPUTDIR/buildjdk-spec.gmk:$AUTOCONF_DIR/buildjdk-spec.gmk.in])
 903   # The compare.sh is used to compare the build output to other builds.
 904   AC_CONFIG_FILES([$OUTPUTDIR/compare.sh:$AUTOCONF_DIR/compare.sh.in])
 905   # The generated Makefile knows where the spec.gmk is and where the source is.
 906   # You can run make from the OUTPUTDIR, or from the top-level Makefile
 907   # which will look for generated configurations
 908   AC_CONFIG_FILES([$OUTPUTDIR/Makefile:$AUTOCONF_DIR/Makefile.in])
 909 ])
 910 
 911 #%%% Simple tools %%%
 912 
 913 ###############################################################################
 914 # Check if we have found a usable version of make
 915 # $1: the path to a potential make binary (or empty)
 916 # $2: the description on how we found this
 917 AC_DEFUN([BASIC_CHECK_MAKE_VERSION],
 918 [
 919   MAKE_CANDIDATE="$1"
 920   DESCRIPTION="$2"
 921 
 922   # On Cygwin, we require a newer version of make than on other platforms
 923   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
 924     MAKE_VERSION_EXPR="-e 4\."
 925     MAKE_REQUIRED_VERSION="4.0"
 926    else
 927     MAKE_VERSION_EXPR="-e 3\.8[[12]] -e 4\."
 928     MAKE_REQUIRED_VERSION="3.81"
 929   fi
 930 
 931   if test "x$MAKE_CANDIDATE" != x; then
 932     AC_MSG_NOTICE([Testing potential make at $MAKE_CANDIDATE, found using $DESCRIPTION])
 933     MAKE_VERSION_STRING=`$MAKE_CANDIDATE --version | $HEAD -n 1`
 934     IS_GNU_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP 'GNU Make'`
 935     if test "x$IS_GNU_MAKE" = x; then
 936       AC_MSG_NOTICE([Found potential make at $MAKE_CANDIDATE, however, this is not GNU Make. Ignoring.])
 937     else
 938       IS_MODERN_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP $MAKE_VERSION_EXPR`
 939       if test "x$IS_MODERN_MAKE" = x; then
 940         AC_MSG_NOTICE([Found GNU make at $MAKE_CANDIDATE, however this is not version $MAKE_REQUIRED_VERSION or later. (it is: $MAKE_VERSION_STRING). Ignoring.])
 941       else
 942         if test "x$OPENJDK_BUILD_OS" = "xwindows"; then
 943           if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
 944             MAKE_EXPECTED_ENV='cygwin'
 945           elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
 946             MAKE_EXPECTED_ENV='msys'
 947           else
 948             AC_MSG_ERROR([Unknown Windows environment])
 949           fi
 950           MAKE_BUILT_FOR=`$MAKE_CANDIDATE --version | $GREP -i 'built for'`
 951           IS_MAKE_CORRECT_ENV=`$ECHO $MAKE_BUILT_FOR | $GREP $MAKE_EXPECTED_ENV`
 952         else
 953           # Not relevant for non-Windows
 954           IS_MAKE_CORRECT_ENV=true
 955         fi
 956         if test "x$IS_MAKE_CORRECT_ENV" = x; then
 957           AC_MSG_NOTICE([Found GNU make version $MAKE_VERSION_STRING at $MAKE_CANDIDATE, but it is not for $MAKE_EXPECTED_ENV (it says: $MAKE_BUILT_FOR). Ignoring.])
 958         else
 959           FOUND_MAKE=$MAKE_CANDIDATE
 960           BASIC_FIXUP_EXECUTABLE(FOUND_MAKE)
 961         fi
 962       fi
 963     fi
 964   fi
 965 ])
 966 
 967 ###############################################################################
 968 AC_DEFUN([BASIC_CHECK_MAKE_OUTPUT_SYNC],
 969 [
 970   # Check if make supports the output sync option and if so, setup using it.
 971   AC_MSG_CHECKING([if make --output-sync is supported])
 972   if $MAKE --version -O > /dev/null 2>&1; then
 973     OUTPUT_SYNC_SUPPORTED=true
 974     AC_MSG_RESULT([yes])
 975     AC_MSG_CHECKING([for output-sync value])
 976     AC_ARG_WITH([output-sync], [AS_HELP_STRING([--with-output-sync],
 977       [set make output sync type if supported by make. @<:@recurse@:>@])],
 978       [OUTPUT_SYNC=$with_output_sync])
 979     if test "x$OUTPUT_SYNC" = "x"; then
 980       OUTPUT_SYNC=none
 981     fi
 982     AC_MSG_RESULT([$OUTPUT_SYNC])
 983     if ! $MAKE --version -O$OUTPUT_SYNC > /dev/null 2>&1; then
 984       AC_MSG_ERROR([Make did not the support the value $OUTPUT_SYNC as output sync type.])
 985     fi
 986   else
 987     OUTPUT_SYNC_SUPPORTED=false
 988     AC_MSG_RESULT([no])
 989   fi
 990   AC_SUBST(OUTPUT_SYNC_SUPPORTED)
 991   AC_SUBST(OUTPUT_SYNC)
 992 ])
 993 
 994 ###############################################################################
 995 # Goes looking for a usable version of GNU make.
 996 AC_DEFUN([BASIC_CHECK_GNU_MAKE],
 997 [
 998   BASIC_SETUP_TOOL([MAKE],
 999   [
1000     # Try our hardest to locate a correct version of GNU make
1001     AC_PATH_PROGS(CHECK_GMAKE, gmake)
1002     BASIC_CHECK_MAKE_VERSION("$CHECK_GMAKE", [gmake in PATH])
1003 
1004     if test "x$FOUND_MAKE" = x; then
1005       AC_PATH_PROGS(CHECK_MAKE, make)
1006       BASIC_CHECK_MAKE_VERSION("$CHECK_MAKE", [make in PATH])
1007     fi
1008 
1009     if test "x$FOUND_MAKE" = x; then
1010       if test "x$TOOLCHAIN_PATH" != x; then
1011         # We have a toolchain path, check that as well before giving up.
1012         OLD_PATH=$PATH
1013         PATH=$TOOLCHAIN_PATH:$PATH
1014         AC_PATH_PROGS(CHECK_TOOLSDIR_GMAKE, gmake)
1015         BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_GMAKE", [gmake in tools-dir])
1016         if test "x$FOUND_MAKE" = x; then
1017           AC_PATH_PROGS(CHECK_TOOLSDIR_MAKE, make)
1018           BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_MAKE", [make in tools-dir])
1019         fi
1020         PATH=$OLD_PATH
1021       fi
1022     fi
1023 
1024     if test "x$FOUND_MAKE" = x; then
1025       AC_MSG_ERROR([Cannot find GNU make $MAKE_REQUIRED_VERSION or newer! Please put it in the path, or add e.g. MAKE=/opt/gmake3.81/make as argument to configure.])
1026     fi
1027   ],[
1028     # If MAKE was set by user, verify the version
1029     BASIC_CHECK_MAKE_VERSION("$MAKE", [user supplied MAKE=$MAKE])
1030     if test "x$FOUND_MAKE" = x; then
1031       AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not GNU make $MAKE_REQUIRED_VERSION or newer.])
1032     fi
1033   ])
1034 
1035   MAKE=$FOUND_MAKE
1036   AC_SUBST(MAKE)
1037   AC_MSG_NOTICE([Using GNU make at $FOUND_MAKE (version: $MAKE_VERSION_STRING)])
1038 
1039   BASIC_CHECK_MAKE_OUTPUT_SYNC
1040 ])
1041 
1042 ###############################################################################
1043 AC_DEFUN([BASIC_CHECK_FIND_DELETE],
1044 [
1045   # Test if find supports -delete
1046   AC_MSG_CHECKING([if find supports -delete])
1047   FIND_DELETE="-delete"
1048 
1049   DELETEDIR=`$MKTEMP -d tmp.XXXXXXXXXX` || (echo Could not create temporary directory!; exit $?)
1050 
1051   echo Hejsan > $DELETEDIR/TestIfFindSupportsDelete
1052 
1053   TEST_DELETE=`$FIND "$DELETEDIR" -name TestIfFindSupportsDelete $FIND_DELETE 2>&1`
1054   if test -f $DELETEDIR/TestIfFindSupportsDelete; then
1055     # No, it does not.
1056     $RM $DELETEDIR/TestIfFindSupportsDelete
1057     if test "x$OPENJDK_TARGET_OS" = "xaix"; then
1058       # AIX 'find' is buggy if called with '-exec {} \+' and an empty file list
1059       FIND_DELETE="-print | $XARGS $RM"
1060     else
1061       FIND_DELETE="-exec $RM \{\} \+"
1062     fi
1063     AC_MSG_RESULT([no])
1064   else
1065     AC_MSG_RESULT([yes])
1066   fi
1067   $RMDIR $DELETEDIR
1068   AC_SUBST(FIND_DELETE)
1069 ])
1070 
1071 ###############################################################################
1072 AC_DEFUN([BASIC_CHECK_TAR],
1073 [
1074   # Test which kind of tar was found
1075   if test "x$($TAR --version | $GREP "GNU tar")" != "x"; then
1076     TAR_TYPE="gnu"
1077   elif test "x$($TAR --version | $GREP "bsdtar")" != "x"; then
1078     TAR_TYPE="bsd"
1079   elif test "x$($TAR -v | $GREP "bsdtar")" != "x"; then
1080     TAR_TYPE="bsd"
1081   elif test "x$OPENJDK_BUILD_OS" = "xsolaris"; then
1082     TAR_TYPE="solaris"
1083   fi
1084   AC_MSG_CHECKING([what type of tar was found])
1085   AC_MSG_RESULT([$TAR_TYPE])
1086 
1087   TAR_CREATE_FILE_PARAM=""
1088 
1089   if test "x$TAR_TYPE" = "xgnu"; then
1090     TAR_INCLUDE_PARAM="T"
1091     TAR_SUPPORTS_TRANSFORM="true"
1092     if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
1093       # When using gnu tar for Solaris targets, need to use compatibility mode
1094       TAR_CREATE_EXTRA_PARAM="--format=ustar"
1095     fi
1096   else
1097     TAR_INCLUDE_PARAM="I"
1098     TAR_SUPPORTS_TRANSFORM="false"
1099   fi
1100   AC_SUBST(TAR_TYPE)
1101   AC_SUBST(TAR_CREATE_EXTRA_PARAM)
1102   AC_SUBST(TAR_INCLUDE_PARAM)
1103   AC_SUBST(TAR_SUPPORTS_TRANSFORM)
1104 ])
1105 
1106 ###############################################################################
1107 AC_DEFUN([BASIC_CHECK_GREP],
1108 [
1109   # Test that grep supports -Fx with a list of pattern which includes null pattern.
1110   # This is a problem for the grep resident on AIX.
1111   AC_MSG_CHECKING([that grep ($GREP) -Fx handles empty lines in the pattern list correctly])
1112   # Multiple subsequent spaces..
1113   STACK_SPACES='aaa   bbb   ccc'
1114   # ..converted to subsequent newlines, causes STACK_LIST to be a list with some empty
1115   # patterns in it.
1116   STACK_LIST=${STACK_SPACES// /$'\n'}
1117   NEEDLE_SPACES='ccc bbb aaa'
1118   NEEDLE_LIST=${NEEDLE_SPACES// /$'\n'}
1119   RESULT="$($GREP -Fvx "$STACK_LIST" <<< "$NEEDLE_LIST")"
1120   if test "x$RESULT" == "x"; then
1121     AC_MSG_RESULT([yes])
1122   else
1123     if test "x$OPENJDK_TARGET_OS" = "xaix"; then
1124       ADDINFO="Please make sure you use GNU grep, usually found at /opt/freeware/bin."
1125     fi
1126     AC_MSG_ERROR([grep does not handle -Fx correctly. ${ADDINFO}])
1127   fi
1128 ])
1129 
1130 ###############################################################################
1131 AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
1132 [
1133   BASIC_CHECK_GNU_MAKE
1134 
1135   BASIC_CHECK_FIND_DELETE
1136   BASIC_CHECK_TAR
1137   BASIC_CHECK_GREP
1138 
1139   # These tools might not be installed by default,
1140   # need hint on how to install them.
1141   BASIC_REQUIRE_PROGS(UNZIP, unzip)
1142   # Since zip uses "ZIP" as a environment variable for passing options, we need
1143   # to name our variable differently, hence ZIPEXE.
1144   BASIC_REQUIRE_PROGS(ZIPEXE, zip)
1145 
1146   # Non-required basic tools
1147 
1148   BASIC_PATH_PROGS(LDD, ldd)
1149   if test "x$LDD" = "x"; then
1150     # List shared lib dependencies is used for
1151     # debug output and checking for forbidden dependencies.
1152     # We can build without it.
1153     LDD="true"
1154   fi
1155   BASIC_PATH_PROGS(READELF, [greadelf readelf])
1156   BASIC_PATH_PROGS(DOT, dot)
1157   BASIC_PATH_PROGS(HG, hg)
1158   BASIC_PATH_PROGS(STAT, stat)
1159   BASIC_PATH_PROGS(TIME, time)
1160   BASIC_PATH_PROGS(FLOCK, flock)
1161   # Dtrace is usually found in /usr/sbin on Solaris, but that directory may not
1162   # be in the user path.
1163   BASIC_PATH_PROGS(DTRACE, dtrace, $PATH:/usr/sbin)
1164   BASIC_PATH_PROGS(PATCH, [gpatch patch])
1165   # Check if it's GNU time
1166   IS_GNU_TIME=`$TIME --version 2>&1 | $GREP 'GNU time'`
1167   if test "x$IS_GNU_TIME" != x; then
1168     IS_GNU_TIME=yes
1169   else
1170     IS_GNU_TIME=no
1171   fi
1172   AC_SUBST(IS_GNU_TIME)
1173 
1174   if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
1175     BASIC_REQUIRE_PROGS(DSYMUTIL, dsymutil)
1176     BASIC_REQUIRE_PROGS(XATTR, xattr)
1177     BASIC_PATH_PROGS(CODESIGN, codesign)
1178     if test "x$CODESIGN" != "x"; then
1179       # Verify that the openjdk_codesign certificate is present
1180       AC_MSG_CHECKING([if openjdk_codesign certificate is present])
1181       $RM codesign-testfile
1182       $TOUCH codesign-testfile
1183       $CODESIGN -s openjdk_codesign codesign-testfile 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD || CODESIGN=
1184       $RM codesign-testfile
1185       if test "x$CODESIGN" = x; then
1186         AC_MSG_RESULT([no])
1187       else
1188         AC_MSG_RESULT([yes])
1189       fi
1190     fi
1191     BASIC_REQUIRE_PROGS(SETFILE, SetFile)
1192   elif test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
1193     BASIC_REQUIRE_PROGS(ELFEDIT, elfedit)
1194   fi
1195 ])
1196 
1197 ###############################################################################
1198 # Check if build directory is on local disk. If not possible to determine,
1199 # we prefer to claim it's local.
1200 # Argument 1: directory to test
1201 # Argument 2: what to do if it is on local disk
1202 # Argument 3: what to do otherwise (remote disk or failure)
1203 AC_DEFUN([BASIC_CHECK_DIR_ON_LOCAL_DISK],
1204 [
1205   # df -l lists only local disks; if the given directory is not found then
1206   # a non-zero exit code is given
1207   if test "x$DF" = x; then
1208     if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
1209       # msys does not have df; use Windows "net use" instead.
1210       IS_NETWORK_DISK=`net use | grep \`pwd -W | cut -d ":" -f 1 | tr a-z A-Z\`:`
1211       if test "x$IS_NETWORK_DISK" = x; then
1212         $2
1213       else
1214         $3
1215       fi
1216     else
1217       # No df here, say it's local
1218       $2
1219     fi
1220   else
1221     # JDK-8189619
1222     # df on AIX does not understand -l. On modern AIXes it understands "-T local" which
1223     # is the same. On older AIXes we just continue to live with a "not local build" warning.
1224     if test "x$OPENJDK_TARGET_OS" = xaix; then
1225       DF_LOCAL_ONLY_OPTION='-T local'
1226     else
1227       DF_LOCAL_ONLY_OPTION='-l'
1228     fi
1229     if $DF $DF_LOCAL_ONLY_OPTION $1 > /dev/null 2>&1; then
1230       $2
1231     else
1232       $3
1233     fi
1234   fi
1235 ])
1236 
1237 ###############################################################################
1238 # Check that source files have basic read permissions set. This might
1239 # not be the case in cygwin in certain conditions.
1240 AC_DEFUN_ONCE([BASIC_CHECK_SRC_PERMS],
1241 [
1242   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
1243     file_to_test="$TOPDIR/LICENSE"
1244     if test `$STAT -c '%a' "$file_to_test"` -lt 400; then
1245       AC_MSG_ERROR([Bad file permissions on src files. This is usually caused by cloning the repositories with a non cygwin hg in a directory not created in cygwin.])
1246     fi
1247   fi
1248 ])
1249 
1250 ###############################################################################
1251 AC_DEFUN_ONCE([BASIC_TEST_USABILITY_ISSUES],
1252 [
1253   AC_MSG_CHECKING([if build directory is on local disk])
1254   BASIC_CHECK_DIR_ON_LOCAL_DISK($OUTPUTDIR,
1255       [OUTPUT_DIR_IS_LOCAL="yes"],
1256       [OUTPUT_DIR_IS_LOCAL="no"])
1257   AC_MSG_RESULT($OUTPUT_DIR_IS_LOCAL)
1258 
1259   BASIC_CHECK_SRC_PERMS
1260 
1261   # Check if the user has any old-style ALT_ variables set.
1262   FOUND_ALT_VARIABLES=`env | grep ^ALT_`
1263 
1264   # Before generating output files, test if they exist. If they do, this is a reconfigure.
1265   # Since we can't properly handle the dependencies for this, warn the user about the situation
1266   if test -e $OUTPUTDIR/spec.gmk; then
1267     IS_RECONFIGURE=yes
1268   else
1269     IS_RECONFIGURE=no
1270   fi
1271 ])
1272 
1273 ###############################################################################
1274 # Check for support for specific options in bash
1275 AC_DEFUN_ONCE([BASIC_CHECK_BASH_OPTIONS],
1276 [
1277   # Check bash version
1278   # Extra [ ] to stop m4 mangling
1279   [ BASH_VER=`$BASH --version | $SED -n  -e 's/^.*bash.*ersion *\([0-9.]*\).*$/\1/ p'` ]
1280   AC_MSG_CHECKING([bash version])
1281   AC_MSG_RESULT([$BASH_VER])
1282 
1283   BASH_MAJOR=`$ECHO $BASH_VER | $CUT -d . -f 1`
1284   BASH_MINOR=`$ECHO $BASH_VER | $CUT -d . -f 2`
1285   if test $BASH_MAJOR -lt 3 || (test $BASH_MAJOR -eq 3 && test $BASH_MINOR -lt 2); then
1286     AC_MSG_ERROR([bash version 3.2 or better is required])
1287   fi
1288 
1289   # Test if bash supports pipefail.
1290   AC_MSG_CHECKING([if bash supports pipefail])
1291   if ${BASH} -c 'set -o pipefail'; then
1292     BASH_ARGS="$BASH_ARGS -o pipefail"
1293     AC_MSG_RESULT([yes])
1294   else
1295     AC_MSG_RESULT([no])
1296   fi
1297 
1298   AC_MSG_CHECKING([if bash supports errexit (-e)])
1299   if ${BASH} -e -c 'true'; then
1300     BASH_ARGS="$BASH_ARGS -e"
1301     AC_MSG_RESULT([yes])
1302   else
1303     AC_MSG_RESULT([no])
1304   fi
1305 
1306   AC_SUBST(BASH_ARGS)
1307 ])
1308 
1309 ################################################################################
1310 #
1311 # Default make target
1312 #
1313 AC_DEFUN_ONCE([BASIC_SETUP_DEFAULT_MAKE_TARGET],
1314 [
1315   AC_ARG_WITH(default-make-target, [AS_HELP_STRING([--with-default-make-target],
1316       [set the default make target @<:@exploded-image@:>@])])
1317   if test "x$with_default_make_target" = "x" \
1318       || test "x$with_default_make_target" = "xyes"; then
1319     DEFAULT_MAKE_TARGET="exploded-image"
1320   elif test "x$with_default_make_target" = "xno"; then
1321     AC_MSG_ERROR([--without-default-make-target is not a valid option])
1322   else
1323     DEFAULT_MAKE_TARGET="$with_default_make_target"
1324   fi
1325 
1326   AC_SUBST(DEFAULT_MAKE_TARGET)
1327 ])
1328 
1329 ###############################################################################
1330 # Setup the default value for LOG=
1331 #
1332 AC_DEFUN_ONCE([BASIC_SETUP_DEFAULT_LOG],
1333 [
1334   AC_ARG_WITH(log, [AS_HELP_STRING([--with-log],
1335       [[default vaue for make LOG argument [warn]]])])
1336   AC_MSG_CHECKING([for default LOG value])
1337   if test "x$with_log" = x; then
1338     DEFAULT_LOG=""
1339   else
1340     # Syntax for valid LOG options is a bit too complex for it to be worth
1341     # implementing a test for correctness in configure. Just accept it.
1342     DEFAULT_LOG=$with_log
1343   fi
1344   AC_MSG_RESULT([$DEFAULT_LOG])
1345   AC_SUBST(DEFAULT_LOG)
1346 ])
1347 
1348 ###############################################################################
1349 # Code to run after AC_OUTPUT
1350 AC_DEFUN_ONCE([BASIC_POST_CONFIG_OUTPUT],
1351 [
1352   # Try to move config.log (generated by autoconf) to the configure-support directory.
1353   if test -e ./config.log; then
1354     $MV -f ./config.log "$CONFIGURESUPPORT_OUTPUTDIR/config.log" 2> /dev/null
1355   fi
1356 
1357   # Rotate our log file (configure.log)
1358   if test -e "$OUTPUTDIR/configure.log.old"; then
1359     $RM -f "$OUTPUTDIR/configure.log.old"
1360   fi
1361   if test -e "$OUTPUTDIR/configure.log"; then
1362     $MV -f "$OUTPUTDIR/configure.log" "$OUTPUTDIR/configure.log.old" 2> /dev/null
1363   fi
1364 
1365   # Move configure.log from current directory to the build output root
1366   if test -e ./configure.log; then
1367     $MV -f ./configure.log "$OUTPUTDIR/configure.log" 2> /dev/null
1368   fi
1369 
1370   # Make the compare script executable
1371   $CHMOD +x $OUTPUTDIR/compare.sh
1372 ])