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 # $3: list of legal values
 106 AC_DEFUN([BASIC_GET_NON_MATCHING_VALUES],
 107 [
 108   # grep filter function inspired by a comment to http://stackoverflow.com/a/1617326
 109   # Notice that the original variant fails on SLES 10 and 11
 110   # Some grep versions (at least bsd) behaves strangely on the base case with
 111   # no legal_values, so make it explicit.
 112   values_to_check=`$ECHO $2 | $TR ' ' '\n'`
 113   legal_values=`$ECHO $3 | $TR ' ' '\n'`
 114   if test -z "$legal_values"; then
 115     $1="$2"
 116   else
 117     result=`$GREP -Fvx "$legal_values" <<< "$values_to_check" | $GREP -v '^$'`
 118     $1=${result//$'\n'/ }
 119   fi
 120 ])
 121 
 122 ###############################################################################
 123 # Check if a list of space-separated words contains any word(s) from a list of
 124 # space-separated illegal words. Typical use is to see if a user-specified
 125 # set of words contains any from a set of illegal words.
 126 #
 127 # Sets the specified variable to list of matching illegal words, or to
 128 # the empty string if no words are matching the illegal set.
 129 #
 130 # $1: result variable name
 131 # $2: list of values to check
 132 # $3: list of illegal values
 133 AC_DEFUN([BASIC_GET_MATCHING_VALUES],
 134 [
 135   # grep filter function inspired by a comment to http://stackoverflow.com/a/1617326
 136   # Notice that the original variant fails on SLES 10 and 11
 137   # Some grep versions (at least bsd) behaves strangely on the base case with
 138   # no legal_values, so make it explicit.
 139   values_to_check=`$ECHO $2 | $TR ' ' '\n'`
 140   illegal_values=`$ECHO $3 | $TR ' ' '\n'`
 141   if test -z "$illegal_values"; then
 142     $1=""
 143   else
 144     result=`$GREP -Fx "$illegal_values" <<< "$values_to_check" | $GREP -v '^$'`
 145     $1=${result//$'\n'/ }
 146   fi
 147 ])
 148 
 149 ###############################################################################
 150 # Sort a space-separated list, and remove duplicates.
 151 #
 152 # Sets the specified variable to the resulting list.
 153 #
 154 # $1: result variable name
 155 # $2: list of values to sort
 156 AC_DEFUN([BASIC_SORT_LIST],
 157 [
 158   values_to_sort=`$ECHO $2 | $TR ' ' '\n'`
 159   result=`$SORT -u <<< "$values_to_sort" | $GREP -v '^$'`
 160   $1=${result//$'\n'/ }
 161 ])
 162 
 163 ###############################################################################
 164 # Test if $1 is a valid argument to $3 (often is $JAVA passed as $3)
 165 # If so, then append $1 to $2 \
 166 # Also set JVM_ARG_OK to true/false depending on outcome.
 167 AC_DEFUN([ADD_JVM_ARG_IF_OK],
 168 [
 169   $ECHO "Check if jvm arg is ok: $1" >&AS_MESSAGE_LOG_FD
 170   $ECHO "Command: $3 $1 -version" >&AS_MESSAGE_LOG_FD
 171   OUTPUT=`$3 $1 -version 2>&1`
 172   FOUND_WARN=`$ECHO "$OUTPUT" | $GREP -i warn`
 173   FOUND_VERSION=`$ECHO $OUTPUT | $GREP " version \""`
 174   if test "x$FOUND_VERSION" != x && test "x$FOUND_WARN" = x; then
 175     $2="[$]$2 $1"
 176     JVM_ARG_OK=true
 177   else
 178     $ECHO "Arg failed:" >&AS_MESSAGE_LOG_FD
 179     $ECHO "$OUTPUT" >&AS_MESSAGE_LOG_FD
 180     JVM_ARG_OK=false
 181   fi
 182 ])
 183 
 184 # Appends a string to a path variable, only adding the : when needed.
 185 AC_DEFUN([BASIC_APPEND_TO_PATH],
 186 [
 187   if test "x$2" != x; then
 188     if test "x[$]$1" = x; then
 189       $1="$2"
 190     else
 191       $1="[$]$1:$2"
 192     fi
 193   fi
 194 ])
 195 
 196 # Prepends a string to a path variable, only adding the : when needed.
 197 AC_DEFUN([BASIC_PREPEND_TO_PATH],
 198 [
 199   if test "x$2" != x; then
 200     if test "x[$]$1" = x; then
 201       $1="$2"
 202     else
 203       $1="$2:[$]$1"
 204     fi
 205   fi
 206 ])
 207 
 208 ###############################################################################
 209 # This will make sure the given variable points to a full and proper
 210 # path. This means:
 211 # 1) There will be no spaces in the path. On unix platforms,
 212 #    spaces in the path will result in an error. On Windows,
 213 #    the path will be rewritten using short-style to be space-free.
 214 # 2) The path will be absolute, and it will be in unix-style (on
 215 #     cygwin).
 216 # $1: The name of the variable to fix
 217 AC_DEFUN([BASIC_FIXUP_PATH],
 218 [
 219   # Only process if variable expands to non-empty
 220 
 221   if test "x[$]$1" != x; then
 222     if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
 223       BASIC_FIXUP_PATH_CYGWIN($1)
 224     elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
 225       BASIC_FIXUP_PATH_MSYS($1)
 226     else
 227       # We're on a unix platform. Hooray! :)
 228       path="[$]$1"
 229       has_space=`$ECHO "$path" | $GREP " "`
 230       if test "x$has_space" != x; then
 231         AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.])
 232         AC_MSG_ERROR([Spaces are not allowed in this path.])
 233       fi
 234 
 235       # Use eval to expand a potential ~
 236       eval path="$path"
 237       if test ! -f "$path" && test ! -d "$path"; then
 238         AC_MSG_ERROR([The path of $1, which resolves as "$path", is not found.])
 239       fi
 240 
 241       if test -d "$path"; then
 242         $1="`cd "$path"; $THEPWDCMD -L`"
 243       else
 244         dir="`$DIRNAME "$path"`"
 245         base="`$BASENAME "$path"`"
 246         $1="`cd "$dir"; $THEPWDCMD -L`/$base"
 247       fi
 248     fi
 249   fi
 250 ])
 251 
 252 ###############################################################################
 253 # This will make sure the given variable points to a executable
 254 # with a full and proper path. This means:
 255 # 1) There will be no spaces in the path. On unix platforms,
 256 #    spaces in the path will result in an error. On Windows,
 257 #    the path will be rewritten using short-style to be space-free.
 258 # 2) The path will be absolute, and it will be in unix-style (on
 259 #     cygwin).
 260 # Any arguments given to the executable is preserved.
 261 # If the input variable does not have a directory specification, then
 262 # it need to be in the PATH.
 263 # $1: The name of the variable to fix
 264 AC_DEFUN([BASIC_FIXUP_EXECUTABLE],
 265 [
 266   # Only process if variable expands to non-empty
 267 
 268   if test "x[$]$1" != x; then
 269     if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
 270       BASIC_FIXUP_EXECUTABLE_CYGWIN($1)
 271     elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
 272       BASIC_FIXUP_EXECUTABLE_MSYS($1)
 273     else
 274       # We're on a unix platform. Hooray! :)
 275       # First separate the path from the arguments. This will split at the first
 276       # space.
 277       complete="[$]$1"
 278       path="${complete%% *}"
 279       tmp="$complete EOL"
 280       arguments="${tmp#* }"
 281 
 282       # Cannot rely on the command "which" here since it doesn't always work.
 283       is_absolute_path=`$ECHO "$path" | $GREP ^/`
 284       if test -z "$is_absolute_path"; then
 285         # Path to executable is not absolute. Find it.
 286         IFS_save="$IFS"
 287         IFS=:
 288         for p in $PATH; do
 289           if test -f "$p/$path" && test -x "$p/$path"; then
 290             new_path="$p/$path"
 291             break
 292           fi
 293         done
 294         IFS="$IFS_save"
 295       else
 296         # This is an absolute path, we can use it without further modifications.
 297         new_path="$path"
 298       fi
 299 
 300       if test "x$new_path" = x; then
 301         AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
 302         has_space=`$ECHO "$complete" | $GREP " "`
 303         if test "x$has_space" != x; then
 304           AC_MSG_NOTICE([This might be caused by spaces in the path, which is not allowed.])
 305         fi
 306         AC_MSG_ERROR([Cannot locate the the path of $1])
 307       fi
 308     fi
 309 
 310     # Now join together the path and the arguments once again
 311     if test "x$arguments" != xEOL; then
 312       new_complete="$new_path ${arguments% *}"
 313     else
 314       new_complete="$new_path"
 315     fi
 316 
 317     if test "x$complete" != "x$new_complete"; then
 318       $1="$new_complete"
 319       AC_MSG_NOTICE([Rewriting $1 to "$new_complete"])
 320     fi
 321   fi
 322 ])
 323 
 324 ###############################################################################
 325 AC_DEFUN([BASIC_REMOVE_SYMBOLIC_LINKS],
 326 [
 327   if test "x$OPENJDK_BUILD_OS" != xwindows; then
 328     # Follow a chain of symbolic links. Use readlink
 329     # where it exists, else fall back to horribly
 330     # complicated shell code.
 331     if test "x$READLINK_TESTED" != yes; then
 332       # On MacOSX there is a readlink tool with a different
 333       # purpose than the GNU readlink tool. Check the found readlink.
 334       READLINK_ISGNU=`$READLINK --version 2>&1 | $GREP GNU`
 335       # If READLINK_ISGNU is empty, then it's a non-GNU readlink. Don't use it.
 336       READLINK_TESTED=yes
 337     fi
 338 
 339     if test "x$READLINK" != x && test "x$READLINK_ISGNU" != x; then
 340       $1=`$READLINK -f [$]$1`
 341     else
 342       # Save the current directory for restoring afterwards
 343       STARTDIR=$PWD
 344       COUNTER=0
 345       sym_link_dir=`$DIRNAME [$]$1`
 346       sym_link_file=`$BASENAME [$]$1`
 347       cd $sym_link_dir
 348       # Use -P flag to resolve symlinks in directories.
 349       cd `$THEPWDCMD -P`
 350       sym_link_dir=`$THEPWDCMD -P`
 351       # Resolve file symlinks
 352       while test $COUNTER -lt 20; do
 353         ISLINK=`$LS -l $sym_link_dir/$sym_link_file | $GREP '\->' | $SED -e 's/.*-> \(.*\)/\1/'`
 354         if test "x$ISLINK" == x; then
 355           # This is not a symbolic link! We are done!
 356           break
 357         fi
 358         # Again resolve directory symlinks since the target of the just found
 359         # link could be in a different directory
 360         cd `$DIRNAME $ISLINK`
 361         sym_link_dir=`$THEPWDCMD -P`
 362         sym_link_file=`$BASENAME $ISLINK`
 363         let COUNTER=COUNTER+1
 364       done
 365       cd $STARTDIR
 366       $1=$sym_link_dir/$sym_link_file
 367     fi
 368   fi
 369 ])
 370 
 371 ###############################################################################
 372 # Register a --with argument but mark it as deprecated
 373 # $1: The name of the with argument to deprecate, not including --with-
 374 AC_DEFUN([BASIC_DEPRECATED_ARG_WITH],
 375 [
 376   AC_ARG_WITH($1, [AS_HELP_STRING([--with-$1],
 377       [Deprecated. Option is kept for backwards compatibility and is ignored])],
 378       [AC_MSG_WARN([Option --with-$1 is deprecated and will be ignored.])])
 379 ])
 380 
 381 ###############################################################################
 382 # Register a --enable argument but mark it as deprecated
 383 # $1: The name of the with argument to deprecate, not including --enable-
 384 # $2: The name of the argument to deprecate, in shell variable style (i.e. with _ instead of -)
 385 # $3: Messages to user.
 386 AC_DEFUN([BASIC_DEPRECATED_ARG_ENABLE],
 387 [
 388   AC_ARG_ENABLE($1, [AS_HELP_STRING([--enable-$1],
 389       [Deprecated. Option is kept for backwards compatibility and is ignored])])
 390   if test "x$enable_$2" != x; then
 391     AC_MSG_WARN([Option --enable-$1 is deprecated and will be ignored.])
 392 
 393     if test "x$3" != x; then
 394       AC_MSG_WARN([$3])
 395     fi
 396 
 397   fi
 398 ])
 399 
 400 ###############################################################################
 401 AC_DEFUN_ONCE([BASIC_INIT],
 402 [
 403   # Save the original command line. This is passed to us by the wrapper configure script.
 404   AC_SUBST(CONFIGURE_COMMAND_LINE)
 405   # Save the path variable before it gets changed
 406   ORIGINAL_PATH="$PATH"
 407   AC_SUBST(ORIGINAL_PATH)
 408   DATE_WHEN_CONFIGURED=`LANG=C date`
 409   AC_SUBST(DATE_WHEN_CONFIGURED)
 410   AC_MSG_NOTICE([Configuration created at $DATE_WHEN_CONFIGURED.])
 411 ])
 412 
 413 ###############################################################################
 414 # Test that variable $1 denoting a program is not empty. If empty, exit with an error.
 415 # $1: variable to check
 416 AC_DEFUN([BASIC_CHECK_NONEMPTY],
 417 [
 418   if test "x[$]$1" = x; then
 419     AC_MSG_ERROR([Could not find required tool for $1])
 420   fi
 421 ])
 422 
 423 ###############################################################################
 424 # Check that there are no unprocessed overridden variables left.
 425 # If so, they are an incorrect argument and we will exit with an error.
 426 AC_DEFUN([BASIC_CHECK_LEFTOVER_OVERRIDDEN],
 427 [
 428   if test "x$CONFIGURE_OVERRIDDEN_VARIABLES" != x; then
 429     # Replace the separating ! with spaces before presenting for end user.
 430     unknown_variables=${CONFIGURE_OVERRIDDEN_VARIABLES//!/ }
 431     AC_MSG_WARN([The following variables might be unknown to configure: $unknown_variables])
 432   fi
 433 ])
 434 
 435 ###############################################################################
 436 # Setup a tool for the given variable. If correctly specified by the user,
 437 # use that value, otherwise search for the tool using the supplied code snippet.
 438 # $1: variable to set
 439 # $2: code snippet to call to look for the tool
 440 # $3: code snippet to call if variable was used to find tool
 441 AC_DEFUN([BASIC_SETUP_TOOL],
 442 [
 443   # Publish this variable in the help.
 444   AC_ARG_VAR($1, [Override default value for $1])
 445 
 446   if [[ -z "${$1+x}" ]]; then
 447     # The variable is not set by user, try to locate tool using the code snippet
 448     $2
 449   else
 450     # The variable is set, but is it from the command line or the environment?
 451 
 452     # Try to remove the string !$1! from our list.
 453     try_remove_var=${CONFIGURE_OVERRIDDEN_VARIABLES//!$1!/}
 454     if test "x$try_remove_var" = "x$CONFIGURE_OVERRIDDEN_VARIABLES"; then
 455       # If it failed, the variable was not from the command line. Ignore it,
 456       # but warn the user (except for BASH, which is always set by the calling BASH).
 457       if test "x$1" != xBASH; then
 458         AC_MSG_WARN([Ignoring value of $1 from the environment. Use command line variables instead.])
 459       fi
 460       # Try to locate tool using the code snippet
 461       $2
 462     else
 463       # If it succeeded, then it was overridden by the user. We will use it
 464       # for the tool.
 465 
 466       # First remove it from the list of overridden variables, so we can test
 467       # for unknown variables in the end.
 468       CONFIGURE_OVERRIDDEN_VARIABLES="$try_remove_var"
 469 
 470       # Check if we try to supply an empty value
 471       if test "x[$]$1" = x; then
 472         AC_MSG_NOTICE([Setting user supplied tool $1= (no value)])
 473         AC_MSG_CHECKING([for $1])
 474         AC_MSG_RESULT([disabled])
 475       else
 476         # Check if the provided tool contains a complete path.
 477         tool_specified="[$]$1"
 478         tool_basename="${tool_specified##*/}"
 479         if test "x$tool_basename" = "x$tool_specified"; then
 480           # A command without a complete path is provided, search $PATH.
 481           AC_MSG_NOTICE([Will search for user supplied tool $1=$tool_basename])
 482           AC_PATH_PROG($1, $tool_basename)
 483           if test "x[$]$1" = x; then
 484             AC_MSG_ERROR([User supplied tool $tool_basename could not be found])
 485           fi
 486         else
 487           # Otherwise we believe it is a complete path. Use it as it is.
 488           AC_MSG_NOTICE([Will use user supplied tool $1=$tool_specified])
 489           AC_MSG_CHECKING([for $1])
 490           if test ! -x "$tool_specified"; then
 491             AC_MSG_RESULT([not found])
 492             AC_MSG_ERROR([User supplied tool $1=$tool_specified does not exist or is not executable])
 493           fi
 494           AC_MSG_RESULT([$tool_specified])
 495         fi
 496       fi
 497     fi
 498     $3
 499   fi
 500 ])
 501 
 502 ###############################################################################
 503 # Call BASIC_SETUP_TOOL with AC_PATH_PROGS to locate the tool
 504 # $1: variable to set
 505 # $2: executable name (or list of names) to look for
 506 # $3: [path]
 507 AC_DEFUN([BASIC_PATH_PROGS],
 508 [
 509   BASIC_SETUP_TOOL($1, [AC_PATH_PROGS($1, $2, , $3)])
 510 ])
 511 
 512 ###############################################################################
 513 # Call BASIC_SETUP_TOOL with AC_CHECK_TOOLS to locate the tool
 514 # $1: variable to set
 515 # $2: executable name (or list of names) to look for
 516 AC_DEFUN([BASIC_CHECK_TOOLS],
 517 [
 518   BASIC_SETUP_TOOL($1, [AC_CHECK_TOOLS($1, $2)])
 519 ])
 520 
 521 ###############################################################################
 522 # Like BASIC_PATH_PROGS but fails if no tool was found.
 523 # $1: variable to set
 524 # $2: executable name (or list of names) to look for
 525 # $3: [path]
 526 AC_DEFUN([BASIC_REQUIRE_PROGS],
 527 [
 528   BASIC_PATH_PROGS($1, $2, , $3)
 529   BASIC_CHECK_NONEMPTY($1)
 530 ])
 531 
 532 ###############################################################################
 533 # Like BASIC_SETUP_TOOL but fails if no tool was found.
 534 # $1: variable to set
 535 # $2: autoconf macro to call to look for the special tool
 536 AC_DEFUN([BASIC_REQUIRE_SPECIAL],
 537 [
 538   BASIC_SETUP_TOOL($1, [$2])
 539   BASIC_CHECK_NONEMPTY($1)
 540 ])
 541 
 542 ###############################################################################
 543 # Setup the most fundamental tools that relies on not much else to set up,
 544 # but is used by much of the early bootstrap code.
 545 AC_DEFUN_ONCE([BASIC_SETUP_FUNDAMENTAL_TOOLS],
 546 [
 547   # Start with tools that do not need have cross compilation support
 548   # and can be expected to be found in the default PATH. These tools are
 549   # used by configure.
 550 
 551   # First are all the simple required tools.
 552   BASIC_REQUIRE_PROGS(BASENAME, basename)
 553   BASIC_REQUIRE_PROGS(BASH, bash)
 554   BASIC_REQUIRE_PROGS(CAT, cat)
 555   BASIC_REQUIRE_PROGS(CHMOD, chmod)
 556   BASIC_REQUIRE_PROGS(CMP, cmp)
 557   BASIC_REQUIRE_PROGS(COMM, comm)
 558   BASIC_REQUIRE_PROGS(CP, cp)
 559   BASIC_REQUIRE_PROGS(CUT, cut)
 560   BASIC_REQUIRE_PROGS(DATE, date)
 561   BASIC_REQUIRE_PROGS(DIFF, [gdiff diff])
 562   BASIC_REQUIRE_PROGS(DIRNAME, dirname)
 563   BASIC_REQUIRE_PROGS(ECHO, echo)
 564   BASIC_REQUIRE_PROGS(EXPR, expr)
 565   BASIC_REQUIRE_PROGS(FILE, file)
 566   BASIC_REQUIRE_PROGS(FIND, find)
 567   BASIC_REQUIRE_PROGS(HEAD, head)
 568   BASIC_REQUIRE_PROGS(GUNZIP, gunzip)
 569   BASIC_REQUIRE_PROGS(GZIP, pigz gzip)
 570   BASIC_REQUIRE_PROGS(LN, ln)
 571   BASIC_REQUIRE_PROGS(LS, ls)
 572   BASIC_REQUIRE_PROGS(MKDIR, mkdir)
 573   BASIC_REQUIRE_PROGS(MKTEMP, mktemp)
 574   BASIC_REQUIRE_PROGS(MV, mv)
 575   BASIC_REQUIRE_PROGS(NAWK, [nawk gawk awk])
 576   BASIC_REQUIRE_PROGS(PRINTF, printf)
 577   BASIC_REQUIRE_PROGS(READLINK, [greadlink readlink])
 578   BASIC_REQUIRE_PROGS(RM, rm)
 579   BASIC_REQUIRE_PROGS(RMDIR, rmdir)
 580   BASIC_REQUIRE_PROGS(SH, sh)
 581   BASIC_REQUIRE_PROGS(SORT, sort)
 582   BASIC_REQUIRE_PROGS(TAIL, tail)
 583   BASIC_REQUIRE_PROGS(TAR, gtar tar)
 584   BASIC_REQUIRE_PROGS(TEE, tee)
 585   BASIC_REQUIRE_PROGS(TOUCH, touch)
 586   BASIC_REQUIRE_PROGS(TR, tr)
 587   BASIC_REQUIRE_PROGS(UNAME, uname)
 588   BASIC_REQUIRE_PROGS(UNIQ, uniq)
 589   BASIC_REQUIRE_PROGS(WC, wc)
 590   BASIC_REQUIRE_PROGS(WHICH, which)
 591   BASIC_REQUIRE_PROGS(XARGS, xargs)
 592 
 593   # Then required tools that require some special treatment.
 594   BASIC_REQUIRE_SPECIAL(AWK, [AC_PROG_AWK])
 595   BASIC_REQUIRE_SPECIAL(GREP, [AC_PROG_GREP])
 596   BASIC_REQUIRE_SPECIAL(EGREP, [AC_PROG_EGREP])
 597   BASIC_REQUIRE_SPECIAL(FGREP, [AC_PROG_FGREP])
 598   BASIC_REQUIRE_SPECIAL(SED, [AC_PROG_SED])
 599 
 600   # Always force rm.
 601   RM="$RM -f"
 602 
 603   # pwd behaves differently on various platforms and some don't support the -L flag.
 604   # Always use the bash builtin pwd to get uniform behavior.
 605   THEPWDCMD=pwd
 606 
 607   # These are not required on all platforms
 608   BASIC_PATH_PROGS(CYGPATH, cygpath)
 609   BASIC_PATH_PROGS(DF, df)
 610   BASIC_PATH_PROGS(CPIO, [cpio bsdcpio])
 611   BASIC_PATH_PROGS(NICE, nice)
 612   BASIC_PATH_PROGS(PANDOC, pandoc)
 613 ])
 614 
 615 ###############################################################################
 616 # Setup basic configuration paths, and platform-specific stuff related to PATHs.
 617 AC_DEFUN_ONCE([BASIC_SETUP_PATHS],
 618 [
 619   # Save the current directory this script was started from
 620   CURDIR="$PWD"
 621 
 622   # We might need to rewrite ORIGINAL_PATH, if it includes "#", to quote them
 623   # for make. We couldn't do this when we retrieved ORIGINAL_PATH, since SED
 624   # was not available at that time.
 625   REWRITTEN_PATH=`$ECHO "$ORIGINAL_PATH" | $SED -e 's/#/\\\\#/g'`
 626   if test "x$REWRITTEN_PATH" != "x$ORIGINAL_PATH"; then
 627     ORIGINAL_PATH="$REWRITTEN_PATH"
 628     AC_MSG_NOTICE([Rewriting ORIGINAL_PATH to $REWRITTEN_PATH])
 629   fi
 630 
 631   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
 632     PATH_SEP=";"
 633     BASIC_CHECK_PATHS_WINDOWS
 634   else
 635     PATH_SEP=":"
 636   fi
 637   AC_SUBST(PATH_SEP)
 638 
 639   # We get the top-level directory from the supporting wrappers.
 640   AC_MSG_CHECKING([for top-level directory])
 641   AC_MSG_RESULT([$TOPDIR])
 642   AC_SUBST(TOPDIR)
 643 
 644   # We can only call BASIC_FIXUP_PATH after BASIC_CHECK_PATHS_WINDOWS.
 645   BASIC_FIXUP_PATH(CURDIR)
 646   BASIC_FIXUP_PATH(TOPDIR)
 647 
 648   # Locate the directory of this script.
 649   AUTOCONF_DIR=$TOPDIR/make/autoconf
 650 
 651   # Setup username (for use in adhoc version strings etc)
 652   # Outer [ ] to quote m4.
 653   [ USERNAME=`$ECHO "$USER" | $TR -d -c '[a-z][A-Z][0-9]'` ]
 654   AC_SUBST(USERNAME)
 655 ])
 656 
 657 ###############################################################################
 658 # Evaluates platform specific overrides for devkit variables.
 659 # $1: Name of variable
 660 AC_DEFUN([BASIC_EVAL_DEVKIT_VARIABLE],
 661 [
 662   if test "x[$]$1" = x; then
 663     eval $1="\${$1_${OPENJDK_TARGET_CPU}}"
 664   fi
 665 ])
 666 
 667 ###############################################################################
 668 AC_DEFUN_ONCE([BASIC_SETUP_DEVKIT],
 669 [
 670   AC_ARG_WITH([devkit], [AS_HELP_STRING([--with-devkit],
 671       [use this devkit for compilers, tools and resources])])
 672 
 673   if test "x$with_devkit" = xyes; then
 674     AC_MSG_ERROR([--with-devkit must have a value])
 675   elif test "x$with_devkit" != x && test "x$with_devkit" != xno; then
 676     BASIC_FIXUP_PATH([with_devkit])
 677     DEVKIT_ROOT="$with_devkit"
 678     # Check for a meta data info file in the root of the devkit
 679     if test -f "$DEVKIT_ROOT/devkit.info"; then
 680       . $DEVKIT_ROOT/devkit.info
 681       # This potentially sets the following:
 682       # A descriptive name of the devkit
 683       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_NAME])
 684       # Corresponds to --with-extra-path
 685       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_EXTRA_PATH])
 686       # Corresponds to --with-toolchain-path
 687       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_TOOLCHAIN_PATH])
 688       # Corresponds to --with-sysroot
 689       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_SYSROOT])
 690 
 691       # Identifies the Visual Studio version in the devkit
 692       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_VS_VERSION])
 693       # The Visual Studio include environment variable
 694       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_VS_INCLUDE])
 695       # The Visual Studio lib environment variable
 696       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_VS_LIB])
 697       # Corresponds to --with-msvcr-dll
 698       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_MSVCR_DLL])
 699       # Corresponds to --with-msvcp-dll
 700       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_MSVCP_DLL])
 701       # Corresponds to --with-ucrt-dll-dir
 702       BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_UCRT_DLL_DIR])
 703     fi
 704 
 705     AC_MSG_CHECKING([for devkit])
 706     if test "x$DEVKIT_NAME" != x; then
 707       AC_MSG_RESULT([$DEVKIT_NAME in $DEVKIT_ROOT])
 708     else
 709       AC_MSG_RESULT([$DEVKIT_ROOT])
 710     fi
 711 
 712     BASIC_PREPEND_TO_PATH([EXTRA_PATH],$DEVKIT_EXTRA_PATH)
 713 
 714     # Fallback default of just /bin if DEVKIT_PATH is not defined
 715     if test "x$DEVKIT_TOOLCHAIN_PATH" = x; then
 716       DEVKIT_TOOLCHAIN_PATH="$DEVKIT_ROOT/bin"
 717     fi
 718     BASIC_PREPEND_TO_PATH([TOOLCHAIN_PATH],$DEVKIT_TOOLCHAIN_PATH)
 719 
 720     # If DEVKIT_SYSROOT is set, use that, otherwise try a couple of known
 721     # places for backwards compatiblity.
 722     if test "x$DEVKIT_SYSROOT" != x; then
 723       SYSROOT="$DEVKIT_SYSROOT"
 724     elif test -d "$DEVKIT_ROOT/$host_alias/libc"; then
 725       SYSROOT="$DEVKIT_ROOT/$host_alias/libc"
 726     elif test -d "$DEVKIT_ROOT/$host/sys-root"; then
 727       SYSROOT="$DEVKIT_ROOT/$host/sys-root"
 728     fi
 729 
 730     if test "x$DEVKIT_ROOT" != x; then
 731       DEVKIT_LIB_DIR="$DEVKIT_ROOT/lib"
 732       if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
 733         DEVKIT_LIB_DIR="$DEVKIT_ROOT/lib64"
 734       fi
 735       AC_SUBST(DEVKIT_LIB_DIR)
 736     fi
 737   fi
 738 
 739   # You can force the sysroot if the sysroot encoded into the compiler tools
 740   # is not correct.
 741   AC_ARG_WITH(sys-root, [AS_HELP_STRING([--with-sys-root],
 742       [alias for --with-sysroot for backwards compatability])],
 743       [SYSROOT=$with_sys_root]
 744   )
 745 
 746   AC_ARG_WITH(sysroot, [AS_HELP_STRING([--with-sysroot],
 747       [use this directory as sysroot])],
 748       [SYSROOT=$with_sysroot]
 749   )
 750 
 751   AC_ARG_WITH([tools-dir], [AS_HELP_STRING([--with-tools-dir],
 752       [alias for --with-toolchain-path for backwards compatibility])],
 753       [BASIC_PREPEND_TO_PATH([TOOLCHAIN_PATH],$with_tools_dir)]
 754   )
 755 
 756   AC_ARG_WITH([toolchain-path], [AS_HELP_STRING([--with-toolchain-path],
 757       [prepend these directories when searching for toolchain binaries (compilers etc)])],
 758       [BASIC_PREPEND_TO_PATH([TOOLCHAIN_PATH],$with_toolchain_path)]
 759   )
 760 
 761   AC_ARG_WITH([extra-path], [AS_HELP_STRING([--with-extra-path],
 762       [prepend these directories to the default path])],
 763       [BASIC_PREPEND_TO_PATH([EXTRA_PATH],$with_extra_path)]
 764   )
 765 
 766   if test "x$OPENJDK_BUILD_OS" = "xmacosx"; then
 767     # If a devkit has been supplied, find xcodebuild in the toolchain_path.
 768     # If not, detect if Xcode is installed by running xcodebuild -version
 769     # if no Xcode installed, xcodebuild exits with 1
 770     # if Xcode is installed, even if xcode-select is misconfigured, then it exits with 0
 771     if test "x$DEVKIT_ROOT" != x || /usr/bin/xcodebuild -version >/dev/null 2>&1; then
 772       # We need to use xcodebuild in the toolchain dir provided by the user, this will
 773       # fall back on the stub binary in /usr/bin/xcodebuild
 774       AC_PATH_PROG([XCODEBUILD], [xcodebuild], [/usr/bin/xcodebuild], [$TOOLCHAIN_PATH])
 775     else
 776       # this should result in SYSROOT being empty, unless --with-sysroot is provided
 777       # when only the command line tools are installed there are no SDKs, so headers
 778       # are copied into the system frameworks
 779       XCODEBUILD=
 780       AC_SUBST(XCODEBUILD)
 781     fi
 782 
 783     AC_MSG_CHECKING([for sdk name])
 784     AC_ARG_WITH([sdk-name], [AS_HELP_STRING([--with-sdk-name],
 785         [use the platform SDK of the given name. @<:@macosx@:>@])],
 786         [SDKNAME=$with_sdk_name]
 787     )
 788     AC_MSG_RESULT([$SDKNAME])
 789 
 790     # if toolchain path is specified then don't rely on system headers, they may not compile
 791     HAVE_SYSTEM_FRAMEWORK_HEADERS=0
 792     test -z "$TOOLCHAIN_PATH" && \
 793       HAVE_SYSTEM_FRAMEWORK_HEADERS=`test ! -f /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h; echo $?`
 794 
 795     if test -z "$SYSROOT"; then
 796       if test -n "$XCODEBUILD"; then
 797         # if we don't have system headers, use default SDK name (last resort)
 798         if test -z "$SDKNAME" -a $HAVE_SYSTEM_FRAMEWORK_HEADERS -eq 0; then
 799           SDKNAME=${SDKNAME:-macosx}
 800         fi
 801 
 802         if test -n "$SDKNAME"; then
 803           # Call xcodebuild to determine SYSROOT
 804           SYSROOT=`"$XCODEBUILD" -sdk $SDKNAME -version | $GREP '^Path: ' | $SED 's/Path: //'`
 805         fi
 806       else
 807         if test $HAVE_SYSTEM_FRAMEWORK_HEADERS -eq 0; then
 808           AC_MSG_ERROR([No xcodebuild tool and no system framework headers found, use --with-sysroot or --with-sdk-name to provide a path to a valid SDK])
 809         fi
 810       fi
 811     else
 812       # warn user if --with-sdk-name was also set
 813       if test -n "$with_sdk_name"; then
 814         AC_MSG_WARN([Both SYSROOT and --with-sdk-name are set, only SYSROOT will be used])
 815       fi
 816     fi
 817 
 818     if test $HAVE_SYSTEM_FRAMEWORK_HEADERS -eq 0 -a -z "$SYSROOT"; then
 819       # If no system framework headers, then SYSROOT must be set, or we won't build
 820       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.])
 821     fi
 822 
 823     # Perform a basic sanity test
 824     if test ! -f "$SYSROOT/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h"; then
 825       if test -z "$SYSROOT"; then
 826         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])
 827       else
 828         AC_MSG_ERROR([Invalid SDK or SYSROOT path, dependent framework headers not found])
 829       fi
 830     fi
 831 
 832     # set SDKROOT too, Xcode tools will pick it up
 833     SDKROOT="$SYSROOT"
 834     AC_SUBST(SDKROOT)
 835   fi
 836 
 837   # Prepend the extra path to the global path
 838   BASIC_PREPEND_TO_PATH([PATH],$EXTRA_PATH)
 839 
 840   AC_MSG_CHECKING([for sysroot])
 841   AC_MSG_RESULT([$SYSROOT])
 842   AC_MSG_CHECKING([for toolchain path])
 843   AC_MSG_RESULT([$TOOLCHAIN_PATH])
 844   AC_MSG_CHECKING([for extra path])
 845   AC_MSG_RESULT([$EXTRA_PATH])
 846 ])
 847 
 848 ###############################################################################
 849 AC_DEFUN_ONCE([BASIC_SETUP_OUTPUT_DIR],
 850 [
 851 
 852   AC_ARG_WITH(conf-name, [AS_HELP_STRING([--with-conf-name],
 853       [use this as the name of the configuration @<:@generated from important configuration options@:>@])],
 854       [ CONF_NAME=${with_conf_name} ])
 855 
 856   # Test from where we are running configure, in or outside of src root.
 857   AC_MSG_CHECKING([where to store configuration])
 858   if test "x$CURDIR" = "x$TOPDIR" || test "x$CURDIR" = "x$CUSTOM_ROOT" \
 859       || test "x$CURDIR" = "x$TOPDIR/make/autoconf" \
 860       || test "x$CURDIR" = "x$TOPDIR/make" ; then
 861     # We are running configure from the src root.
 862     # Create a default ./build/target-variant-debuglevel output root.
 863     if test "x${CONF_NAME}" = x; then
 864       AC_MSG_RESULT([in default location])
 865       CONF_NAME="${OPENJDK_TARGET_OS}-${OPENJDK_TARGET_CPU}-${JDK_VARIANT}-${JVM_VARIANTS_WITH_AND}-${DEBUG_LEVEL}"
 866     else
 867       AC_MSG_RESULT([in build directory with custom name])
 868     fi
 869 
 870     if test "x$CUSTOM_ROOT" != x; then
 871       OUTPUTDIR="${CUSTOM_ROOT}/build/${CONF_NAME}"
 872     else
 873       OUTPUTDIR="${TOPDIR}/build/${CONF_NAME}"
 874     fi
 875     $MKDIR -p "$OUTPUTDIR"
 876     if test ! -d "$OUTPUTDIR"; then
 877       AC_MSG_ERROR([Could not create build directory $OUTPUTDIR])
 878     fi
 879   else
 880     # We are running configure from outside of the src dir.
 881     # Then use the current directory as output dir!
 882     # If configuration is situated in normal build directory, just use the build
 883     # directory name as configuration name, otherwise use the complete path.
 884     if test "x${CONF_NAME}" = x; then
 885       CONF_NAME=`$ECHO $CURDIR | $SED -e "s!^${TOPDIR}/build/!!"`
 886     fi
 887     OUTPUTDIR="$CURDIR"
 888     AC_MSG_RESULT([in current directory])
 889 
 890     # WARNING: This might be a bad thing to do. You need to be sure you want to
 891     # have a configuration in this directory. Do some sanity checks!
 892 
 893     if test ! -e "$OUTPUTDIR/spec.gmk"; then
 894       # If we have a spec.gmk, we have run here before and we are OK. Otherwise, check for
 895       # other files
 896       files_present=`$LS $OUTPUTDIR`
 897       # Configure has already touched config.log and confdefs.h in the current dir when this check
 898       # is performed.
 899       filtered_files=`$ECHO "$files_present" \
 900           | $SED -e 's/config.log//g' \
 901               -e 's/configure.log//g' \
 902               -e 's/confdefs.h//g' \
 903               -e 's/configure-support//g' \
 904               -e 's/ //g' \
 905           | $TR -d '\n'`
 906       if test "x$filtered_files" != x; then
 907         AC_MSG_NOTICE([Current directory is $CURDIR.])
 908         AC_MSG_NOTICE([Since this is not the source root, configure will output the configuration here])
 909         AC_MSG_NOTICE([(as opposed to creating a configuration in <src_root>/build/<conf-name>).])
 910         AC_MSG_NOTICE([However, this directory is not empty. This is not allowed, since it could])
 911         AC_MSG_NOTICE([seriously mess up just about everything.])
 912         AC_MSG_NOTICE([Try 'cd $TOPDIR' and restart configure])
 913         AC_MSG_NOTICE([(or create a new empty directory and cd to it).])
 914         AC_MSG_ERROR([Will not continue creating configuration in $CURDIR])
 915       fi
 916     fi
 917   fi
 918   AC_MSG_CHECKING([what configuration name to use])
 919   AC_MSG_RESULT([$CONF_NAME])
 920 
 921   BASIC_FIXUP_PATH(OUTPUTDIR)
 922 
 923   CONFIGURESUPPORT_OUTPUTDIR="$OUTPUTDIR/configure-support"
 924   $MKDIR -p "$CONFIGURESUPPORT_OUTPUTDIR"
 925 
 926   SPEC="$OUTPUTDIR/spec.gmk"
 927   AC_SUBST(SPEC)
 928   AC_SUBST(CONF_NAME)
 929   AC_SUBST(OUTPUTDIR)
 930   AC_SUBST(CONFIGURESUPPORT_OUTPUTDIR)
 931 
 932   # The spec.gmk file contains all variables for the make system.
 933   AC_CONFIG_FILES([$OUTPUTDIR/spec.gmk:$AUTOCONF_DIR/spec.gmk.in])
 934   # The bootcycle-spec.gmk file contains support for boot cycle builds.
 935   AC_CONFIG_FILES([$OUTPUTDIR/bootcycle-spec.gmk:$AUTOCONF_DIR/bootcycle-spec.gmk.in])
 936   # The buildjdk-spec.gmk file contains support for building a buildjdk when cross compiling.
 937   AC_CONFIG_FILES([$OUTPUTDIR/buildjdk-spec.gmk:$AUTOCONF_DIR/buildjdk-spec.gmk.in])
 938   # The compare.sh is used to compare the build output to other builds.
 939   AC_CONFIG_FILES([$OUTPUTDIR/compare.sh:$AUTOCONF_DIR/compare.sh.in])
 940   # The generated Makefile knows where the spec.gmk is and where the source is.
 941   # You can run make from the OUTPUTDIR, or from the top-level Makefile
 942   # which will look for generated configurations
 943   AC_CONFIG_FILES([$OUTPUTDIR/Makefile:$AUTOCONF_DIR/Makefile.in])
 944 ])
 945 
 946 #%%% Simple tools %%%
 947 
 948 ###############################################################################
 949 # Check if we have found a usable version of make
 950 # $1: the path to a potential make binary (or empty)
 951 # $2: the description on how we found this
 952 AC_DEFUN([BASIC_CHECK_MAKE_VERSION],
 953 [
 954   MAKE_CANDIDATE="$1"
 955   DESCRIPTION="$2"
 956 
 957   # On Cygwin, we require a newer version of make than on other platforms
 958   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
 959     MAKE_VERSION_EXPR="-e 4\."
 960     MAKE_REQUIRED_VERSION="4.0"
 961    else
 962     MAKE_VERSION_EXPR="-e 3\.8[[12]] -e 4\."
 963     MAKE_REQUIRED_VERSION="3.81"
 964   fi
 965 
 966   if test "x$MAKE_CANDIDATE" != x; then
 967     AC_MSG_NOTICE([Testing potential make at $MAKE_CANDIDATE, found using $DESCRIPTION])
 968     MAKE_VERSION_STRING=`$MAKE_CANDIDATE --version | $HEAD -n 1`
 969     IS_GNU_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP 'GNU Make'`
 970     if test "x$IS_GNU_MAKE" = x; then
 971       AC_MSG_NOTICE([Found potential make at $MAKE_CANDIDATE, however, this is not GNU Make. Ignoring.])
 972     else
 973       IS_MODERN_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP $MAKE_VERSION_EXPR`
 974       if test "x$IS_MODERN_MAKE" = x; then
 975         AC_MSG_NOTICE([Found GNU make at $MAKE_CANDIDATE, however this is not version $MAKE_REQUIRED_VERSION or later. (it is: $MAKE_VERSION_STRING). Ignoring.])
 976       else
 977         if test "x$OPENJDK_BUILD_OS" = "xwindows"; then
 978           if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
 979             MAKE_EXPECTED_ENV='cygwin'
 980           elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
 981             MAKE_EXPECTED_ENV='msys'
 982           else
 983             AC_MSG_ERROR([Unknown Windows environment])
 984           fi
 985           MAKE_BUILT_FOR=`$MAKE_CANDIDATE --version | $GREP -i 'built for'`
 986           IS_MAKE_CORRECT_ENV=`$ECHO $MAKE_BUILT_FOR | $GREP $MAKE_EXPECTED_ENV`
 987         else
 988           # Not relevant for non-Windows
 989           IS_MAKE_CORRECT_ENV=true
 990         fi
 991         if test "x$IS_MAKE_CORRECT_ENV" = x; then
 992           AC_MSG_NOTICE([Found GNU make version $MAKE_VERSION_STRING at $MAKE_CANDIDATE, but it is not for $MAKE_EXPECTED_ENV (it says: $MAKE_BUILT_FOR). Ignoring.])
 993         else
 994           FOUND_MAKE=$MAKE_CANDIDATE
 995           BASIC_FIXUP_EXECUTABLE(FOUND_MAKE)
 996         fi
 997       fi
 998     fi
 999   fi
1000 ])
1001 
1002 ###############################################################################
1003 AC_DEFUN([BASIC_CHECK_MAKE_OUTPUT_SYNC],
1004 [
1005   # Check if make supports the output sync option and if so, setup using it.
1006   AC_MSG_CHECKING([if make --output-sync is supported])
1007   if $MAKE --version -O > /dev/null 2>&1; then
1008     OUTPUT_SYNC_SUPPORTED=true
1009     AC_MSG_RESULT([yes])
1010     AC_MSG_CHECKING([for output-sync value])
1011     AC_ARG_WITH([output-sync], [AS_HELP_STRING([--with-output-sync],
1012       [set make output sync type if supported by make. @<:@recurse@:>@])],
1013       [OUTPUT_SYNC=$with_output_sync])
1014     if test "x$OUTPUT_SYNC" = "x"; then
1015       OUTPUT_SYNC=none
1016     fi
1017     AC_MSG_RESULT([$OUTPUT_SYNC])
1018     if ! $MAKE --version -O$OUTPUT_SYNC > /dev/null 2>&1; then
1019       AC_MSG_ERROR([Make did not the support the value $OUTPUT_SYNC as output sync type.])
1020     fi
1021   else
1022     OUTPUT_SYNC_SUPPORTED=false
1023     AC_MSG_RESULT([no])
1024   fi
1025   AC_SUBST(OUTPUT_SYNC_SUPPORTED)
1026   AC_SUBST(OUTPUT_SYNC)
1027 ])
1028 
1029 ###############################################################################
1030 # Goes looking for a usable version of GNU make.
1031 AC_DEFUN([BASIC_CHECK_GNU_MAKE],
1032 [
1033   BASIC_SETUP_TOOL([MAKE],
1034   [
1035     # Try our hardest to locate a correct version of GNU make
1036     AC_PATH_PROGS(CHECK_GMAKE, gmake)
1037     BASIC_CHECK_MAKE_VERSION("$CHECK_GMAKE", [gmake in PATH])
1038 
1039     if test "x$FOUND_MAKE" = x; then
1040       AC_PATH_PROGS(CHECK_MAKE, make)
1041       BASIC_CHECK_MAKE_VERSION("$CHECK_MAKE", [make in PATH])
1042     fi
1043 
1044     if test "x$FOUND_MAKE" = x; then
1045       if test "x$TOOLCHAIN_PATH" != x; then
1046         # We have a toolchain path, check that as well before giving up.
1047         OLD_PATH=$PATH
1048         PATH=$TOOLCHAIN_PATH:$PATH
1049         AC_PATH_PROGS(CHECK_TOOLSDIR_GMAKE, gmake)
1050         BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_GMAKE", [gmake in tools-dir])
1051         if test "x$FOUND_MAKE" = x; then
1052           AC_PATH_PROGS(CHECK_TOOLSDIR_MAKE, make)
1053           BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_MAKE", [make in tools-dir])
1054         fi
1055         PATH=$OLD_PATH
1056       fi
1057     fi
1058 
1059     if test "x$FOUND_MAKE" = x; then
1060       AC_MSG_ERROR([Cannot find GNU make $MAKE_REQUIRED_VERSION or newer! Please put it in the path, or add e.g. MAKE=/opt/gmake3.81/make as argument to configure.])
1061     fi
1062   ],[
1063     # If MAKE was set by user, verify the version
1064     BASIC_CHECK_MAKE_VERSION("$MAKE", [user supplied MAKE=$MAKE])
1065     if test "x$FOUND_MAKE" = x; then
1066       AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not GNU make $MAKE_REQUIRED_VERSION or newer.])
1067     fi
1068   ])
1069 
1070   MAKE=$FOUND_MAKE
1071   AC_SUBST(MAKE)
1072   AC_MSG_NOTICE([Using GNU make at $FOUND_MAKE (version: $MAKE_VERSION_STRING)])
1073 
1074   BASIC_CHECK_MAKE_OUTPUT_SYNC
1075 ])
1076 
1077 ###############################################################################
1078 AC_DEFUN([BASIC_CHECK_FIND_DELETE],
1079 [
1080   # Test if find supports -delete
1081   AC_MSG_CHECKING([if find supports -delete])
1082   FIND_DELETE="-delete"
1083 
1084   DELETEDIR=`$MKTEMP -d tmp.XXXXXXXXXX` || (echo Could not create temporary directory!; exit $?)
1085 
1086   echo Hejsan > $DELETEDIR/TestIfFindSupportsDelete
1087 
1088   TEST_DELETE=`$FIND "$DELETEDIR" -name TestIfFindSupportsDelete $FIND_DELETE 2>&1`
1089   if test -f $DELETEDIR/TestIfFindSupportsDelete; then
1090     # No, it does not.
1091     $RM $DELETEDIR/TestIfFindSupportsDelete
1092     if test "x$OPENJDK_TARGET_OS" = "xaix"; then
1093       # AIX 'find' is buggy if called with '-exec {} \+' and an empty file list
1094       FIND_DELETE="-print | $XARGS $RM"
1095     else
1096       FIND_DELETE="-exec $RM \{\} \+"
1097     fi
1098     AC_MSG_RESULT([no])
1099   else
1100     AC_MSG_RESULT([yes])
1101   fi
1102   $RMDIR $DELETEDIR
1103   AC_SUBST(FIND_DELETE)
1104 ])
1105 
1106 ###############################################################################
1107 AC_DEFUN([BASIC_CHECK_TAR],
1108 [
1109   # Test which kind of tar was found
1110   if test "x$($TAR --version | $GREP "GNU tar")" != "x"; then
1111     TAR_TYPE="gnu"
1112   elif test "x$($TAR --version | $GREP "bsdtar")" != "x"; then
1113     TAR_TYPE="bsd"
1114   elif test "x$($TAR -v | $GREP "bsdtar")" != "x"; then
1115     TAR_TYPE="bsd"
1116   elif test "x$OPENJDK_BUILD_OS" = "xsolaris"; then
1117     TAR_TYPE="solaris"
1118   fi
1119   AC_MSG_CHECKING([what type of tar was found])
1120   AC_MSG_RESULT([$TAR_TYPE])
1121 
1122   TAR_CREATE_FILE_PARAM=""
1123 
1124   if test "x$TAR_TYPE" = "xgnu"; then
1125     TAR_INCLUDE_PARAM="T"
1126     TAR_SUPPORTS_TRANSFORM="true"
1127     if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
1128       # When using gnu tar for Solaris targets, need to use compatibility mode
1129       TAR_CREATE_EXTRA_PARAM="--format=ustar"
1130     fi
1131   else
1132     TAR_INCLUDE_PARAM="I"
1133     TAR_SUPPORTS_TRANSFORM="false"
1134   fi
1135   AC_SUBST(TAR_TYPE)
1136   AC_SUBST(TAR_CREATE_EXTRA_PARAM)
1137   AC_SUBST(TAR_INCLUDE_PARAM)
1138   AC_SUBST(TAR_SUPPORTS_TRANSFORM)
1139 ])
1140 
1141 ###############################################################################
1142 AC_DEFUN([BASIC_CHECK_GREP],
1143 [
1144   # Test that grep supports -Fx with a list of pattern which includes null pattern.
1145   # This is a problem for the grep resident on AIX.
1146   AC_MSG_CHECKING([that grep ($GREP) -Fx handles empty lines in the pattern list correctly])
1147   # Multiple subsequent spaces..
1148   STACK_SPACES='aaa   bbb   ccc'
1149   # ..converted to subsequent newlines, causes STACK_LIST to be a list with some empty
1150   # patterns in it.
1151   STACK_LIST=${STACK_SPACES// /$'\n'}
1152   NEEDLE_SPACES='ccc bbb aaa'
1153   NEEDLE_LIST=${NEEDLE_SPACES// /$'\n'}
1154   RESULT="$($GREP -Fvx "$STACK_LIST" <<< "$NEEDLE_LIST")"
1155   if test "x$RESULT" == "x"; then
1156     AC_MSG_RESULT([yes])
1157   else
1158     if test "x$OPENJDK_TARGET_OS" = "xaix"; then
1159       ADDINFO="Please make sure you use GNU grep, usually found at /opt/freeware/bin."
1160     fi
1161     AC_MSG_ERROR([grep does not handle -Fx correctly. ${ADDINFO}])
1162   fi
1163 ])
1164 
1165 ###############################################################################
1166 AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
1167 [
1168   BASIC_CHECK_GNU_MAKE
1169 
1170   BASIC_CHECK_FIND_DELETE
1171   BASIC_CHECK_TAR
1172   BASIC_CHECK_GREP
1173 
1174   # These tools might not be installed by default,
1175   # need hint on how to install them.
1176   BASIC_REQUIRE_PROGS(UNZIP, unzip)
1177   # Since zip uses "ZIP" as a environment variable for passing options, we need
1178   # to name our variable differently, hence ZIPEXE.
1179   BASIC_REQUIRE_PROGS(ZIPEXE, zip)
1180 
1181   # Non-required basic tools
1182 
1183   BASIC_PATH_PROGS(LDD, ldd)
1184   if test "x$LDD" = "x"; then
1185     # List shared lib dependencies is used for
1186     # debug output and checking for forbidden dependencies.
1187     # We can build without it.
1188     LDD="true"
1189   fi
1190   BASIC_PATH_PROGS(READELF, [greadelf readelf])
1191   BASIC_PATH_PROGS(DOT, dot)
1192   BASIC_PATH_PROGS(HG, hg)
1193   BASIC_PATH_PROGS(STAT, stat)
1194   BASIC_PATH_PROGS(TIME, time)
1195   BASIC_PATH_PROGS(FLOCK, flock)
1196   # Dtrace is usually found in /usr/sbin on Solaris, but that directory may not
1197   # be in the user path.
1198   BASIC_PATH_PROGS(DTRACE, dtrace, $PATH:/usr/sbin)
1199   BASIC_PATH_PROGS(PATCH, [gpatch patch])
1200   # Check if it's GNU time
1201   IS_GNU_TIME=`$TIME --version 2>&1 | $GREP 'GNU time'`
1202   if test "x$IS_GNU_TIME" != x; then
1203     IS_GNU_TIME=yes
1204   else
1205     IS_GNU_TIME=no
1206   fi
1207   AC_SUBST(IS_GNU_TIME)
1208 
1209   if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
1210     BASIC_REQUIRE_PROGS(DSYMUTIL, dsymutil)
1211     BASIC_REQUIRE_PROGS(MIG, mig)
1212     BASIC_REQUIRE_PROGS(XATTR, xattr)
1213     BASIC_PATH_PROGS(CODESIGN, codesign)
1214     if test "x$CODESIGN" != "x"; then
1215       # Verify that the openjdk_codesign certificate is present
1216       AC_MSG_CHECKING([if openjdk_codesign certificate is present])
1217       $RM codesign-testfile
1218       $TOUCH codesign-testfile
1219       $CODESIGN -s openjdk_codesign codesign-testfile 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD || CODESIGN=
1220       $RM codesign-testfile
1221       if test "x$CODESIGN" = x; then
1222         AC_MSG_RESULT([no])
1223       else
1224         AC_MSG_RESULT([yes])
1225       fi
1226     fi
1227     BASIC_REQUIRE_PROGS(SETFILE, SetFile)
1228   elif test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
1229     BASIC_REQUIRE_PROGS(ELFEDIT, elfedit)
1230   fi
1231 ])
1232 
1233 ###############################################################################
1234 # Check if build directory is on local disk. If not possible to determine,
1235 # we prefer to claim it's local.
1236 # Argument 1: directory to test
1237 # Argument 2: what to do if it is on local disk
1238 # Argument 3: what to do otherwise (remote disk or failure)
1239 AC_DEFUN([BASIC_CHECK_DIR_ON_LOCAL_DISK],
1240 [
1241   # df -l lists only local disks; if the given directory is not found then
1242   # a non-zero exit code is given
1243   if test "x$DF" = x; then
1244     if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
1245       # msys does not have df; use Windows "net use" instead.
1246       IS_NETWORK_DISK=`net use | grep \`pwd -W | cut -d ":" -f 1 | tr a-z A-Z\`:`
1247       if test "x$IS_NETWORK_DISK" = x; then
1248         $2
1249       else
1250         $3
1251       fi
1252     else
1253       # No df here, say it's local
1254       $2
1255     fi
1256   else
1257     # JDK-8189619
1258     # df on AIX does not understand -l. On modern AIXes it understands "-T local" which
1259     # is the same. On older AIXes we just continue to live with a "not local build" warning.
1260     if test "x$OPENJDK_TARGET_OS" = xaix; then
1261       DF_LOCAL_ONLY_OPTION='-T local'
1262     else
1263       DF_LOCAL_ONLY_OPTION='-l'
1264     fi
1265     if $DF $DF_LOCAL_ONLY_OPTION $1 > /dev/null 2>&1; then
1266       $2
1267     else
1268       $3
1269     fi
1270   fi
1271 ])
1272 
1273 ###############################################################################
1274 # Check that source files have basic read permissions set. This might
1275 # not be the case in cygwin in certain conditions.
1276 AC_DEFUN_ONCE([BASIC_CHECK_SRC_PERMS],
1277 [
1278   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
1279     file_to_test="$TOPDIR/LICENSE"
1280     if test `$STAT -c '%a' "$file_to_test"` -lt 400; then
1281       AC_MSG_ERROR([Bad file permissions on src files. This is usually caused by cloning the repositories with a non cygwin hg in a directory not created in cygwin.])
1282     fi
1283   fi
1284 ])
1285 
1286 ###############################################################################
1287 AC_DEFUN_ONCE([BASIC_TEST_USABILITY_ISSUES],
1288 [
1289   AC_MSG_CHECKING([if build directory is on local disk])
1290   BASIC_CHECK_DIR_ON_LOCAL_DISK($OUTPUTDIR,
1291       [OUTPUT_DIR_IS_LOCAL="yes"],
1292       [OUTPUT_DIR_IS_LOCAL="no"])
1293   AC_MSG_RESULT($OUTPUT_DIR_IS_LOCAL)
1294 
1295   BASIC_CHECK_SRC_PERMS
1296 
1297   # Check if the user has any old-style ALT_ variables set.
1298   FOUND_ALT_VARIABLES=`env | grep ^ALT_`
1299 
1300   # Before generating output files, test if they exist. If they do, this is a reconfigure.
1301   # Since we can't properly handle the dependencies for this, warn the user about the situation
1302   if test -e $OUTPUTDIR/spec.gmk; then
1303     IS_RECONFIGURE=yes
1304   else
1305     IS_RECONFIGURE=no
1306   fi
1307 ])
1308 
1309 ###############################################################################
1310 # Check for support for specific options in bash
1311 AC_DEFUN_ONCE([BASIC_CHECK_BASH_OPTIONS],
1312 [
1313   # Check bash version
1314   # Extra [ ] to stop m4 mangling
1315   [ BASH_VER=`$BASH --version | $SED -n  -e 's/^.*bash.*ersion *\([0-9.]*\).*$/\1/ p'` ]
1316   AC_MSG_CHECKING([bash version])
1317   AC_MSG_RESULT([$BASH_VER])
1318 
1319   BASH_MAJOR=`$ECHO $BASH_VER | $CUT -d . -f 1`
1320   BASH_MINOR=`$ECHO $BASH_VER | $CUT -d . -f 2`
1321   if test $BASH_MAJOR -lt 3 || (test $BASH_MAJOR -eq 3 && test $BASH_MINOR -lt 2); then
1322     AC_MSG_ERROR([bash version 3.2 or better is required])
1323   fi
1324 
1325   # Test if bash supports pipefail.
1326   AC_MSG_CHECKING([if bash supports pipefail])
1327   if ${BASH} -c 'set -o pipefail'; then
1328     BASH_ARGS="$BASH_ARGS -o pipefail"
1329     AC_MSG_RESULT([yes])
1330   else
1331     AC_MSG_RESULT([no])
1332   fi
1333 
1334   AC_MSG_CHECKING([if bash supports errexit (-e)])
1335   if ${BASH} -e -c 'true'; then
1336     BASH_ARGS="$BASH_ARGS -e"
1337     AC_MSG_RESULT([yes])
1338   else
1339     AC_MSG_RESULT([no])
1340   fi
1341 
1342   AC_SUBST(BASH_ARGS)
1343 ])
1344 
1345 ################################################################################
1346 #
1347 # Default make target
1348 #
1349 AC_DEFUN_ONCE([BASIC_SETUP_DEFAULT_MAKE_TARGET],
1350 [
1351   AC_ARG_WITH(default-make-target, [AS_HELP_STRING([--with-default-make-target],
1352       [set the default make target @<:@exploded-image@:>@])])
1353   if test "x$with_default_make_target" = "x" \
1354       || test "x$with_default_make_target" = "xyes"; then
1355     DEFAULT_MAKE_TARGET="exploded-image"
1356   elif test "x$with_default_make_target" = "xno"; then
1357     AC_MSG_ERROR([--without-default-make-target is not a valid option])
1358   else
1359     DEFAULT_MAKE_TARGET="$with_default_make_target"
1360   fi
1361 
1362   AC_SUBST(DEFAULT_MAKE_TARGET)
1363 ])
1364 
1365 ###############################################################################
1366 # Setup the default value for LOG=
1367 #
1368 AC_DEFUN_ONCE([BASIC_SETUP_DEFAULT_LOG],
1369 [
1370   AC_ARG_WITH(log, [AS_HELP_STRING([--with-log],
1371       [[default vaue for make LOG argument [warn]]])])
1372   AC_MSG_CHECKING([for default LOG value])
1373   if test "x$with_log" = x; then
1374     DEFAULT_LOG=""
1375   else
1376     # Syntax for valid LOG options is a bit too complex for it to be worth
1377     # implementing a test for correctness in configure. Just accept it.
1378     DEFAULT_LOG=$with_log
1379   fi
1380   AC_MSG_RESULT([$DEFAULT_LOG])
1381   AC_SUBST(DEFAULT_LOG)
1382 ])
1383 
1384 ###############################################################################
1385 # Code to run after AC_OUTPUT
1386 AC_DEFUN_ONCE([BASIC_POST_CONFIG_OUTPUT],
1387 [
1388   # Try to move config.log (generated by autoconf) to the configure-support directory.
1389   if test -e ./config.log; then
1390     $MV -f ./config.log "$CONFIGURESUPPORT_OUTPUTDIR/config.log" 2> /dev/null
1391   fi
1392 
1393   # Rotate our log file (configure.log)
1394   if test -e "$OUTPUTDIR/configure.log.old"; then
1395     $RM -f "$OUTPUTDIR/configure.log.old"
1396   fi
1397   if test -e "$OUTPUTDIR/configure.log"; then
1398     $MV -f "$OUTPUTDIR/configure.log" "$OUTPUTDIR/configure.log.old" 2> /dev/null
1399   fi
1400 
1401   # Move configure.log from current directory to the build output root
1402   if test -e ./configure.log; then
1403     $MV -f ./configure.log "$OUTPUTDIR/configure.log" 2> /dev/null
1404   fi
1405 
1406   # Make the compare script executable
1407   $CHMOD +x $OUTPUTDIR/compare.sh
1408 ])