make/autoconf/basics.m4
changeset 47216 71c04702a3d5
parent 44894 e1b5a6c45d39
child 47217 72e3ae9a25eb
equal deleted inserted replaced
47215:4ebc2e2fb97c 47216:71c04702a3d5
       
     1 #
       
     2 # Copyright (c) 2011, 2017, 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 # Create a function/macro that takes a series of named arguments. The call is
       
    27 # similar to AC_DEFUN, but the setup of the function looks like this:
       
    28 # BASIC_DEFUN_NAMED([MYFUNC], [FOO *BAR], [$@], [
       
    29 # ... do something
       
    30 #   AC_MSG_NOTICE([Value of BAR is ARG_BAR])
       
    31 # ])
       
    32 # A star (*) in front of a named argument means that it is required and it's
       
    33 # presence will be verified. To pass e.g. the first value as a normal indexed
       
    34 # argument, use [m4_shift($@)] as the third argument instead of [$@]. These
       
    35 # arguments are referenced in the function by their name prefixed by ARG_, e.g.
       
    36 # "ARG_FOO".
       
    37 #
       
    38 # The generated function can be called like this:
       
    39 # MYFUNC(FOO: [foo-val],
       
    40 #     BAR: [
       
    41 #         $ECHO hello world
       
    42 #     ])
       
    43 # Note that the argument value must start on the same line as the argument name.
       
    44 #
       
    45 # Argument 1: Name of the function to define
       
    46 # Argument 2: List of legal named arguments, with a * prefix for required arguments
       
    47 # Argument 3: Argument array to treat as named, typically $@
       
    48 # Argument 4: The main function body
       
    49 AC_DEFUN([BASIC_DEFUN_NAMED],
       
    50 [
       
    51   AC_DEFUN($1, [
       
    52     m4_foreach(arg, m4_split($2), [
       
    53       m4_if(m4_bregexp(arg, [^\*]), -1,
       
    54         [
       
    55           m4_set_add(legal_named_args, arg)
       
    56         ],
       
    57         [
       
    58           m4_set_add(legal_named_args, m4_substr(arg, 1))
       
    59           m4_set_add(required_named_args, m4_substr(arg, 1))
       
    60         ]
       
    61       )
       
    62     ])
       
    63 
       
    64     m4_foreach([arg], [$3], [
       
    65       m4_define(arg_name, m4_substr(arg, 0, m4_bregexp(arg, [: ])))
       
    66       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, [ ])'.])])
       
    67       m4_set_remove(required_named_args, arg_name)
       
    68       m4_set_remove(legal_named_args, arg_name)
       
    69       m4_pushdef([ARG_][]arg_name, m4_substr(arg, m4_incr(m4_incr(m4_bregexp(arg, [: ])))))
       
    70       m4_set_add(defined_args, arg_name)
       
    71       m4_undefine([arg_name])
       
    72     ])
       
    73     m4_set_empty(required_named_args, [], [
       
    74       AC_MSG_ERROR([Internal error: Required named arguments are missing for [$1]. Missing arguments: 'm4_set_contents(required_named_args, [ ])'])
       
    75     ])
       
    76     m4_foreach([arg], m4_indir([m4_dquote]m4_set_listc([legal_named_args])), [
       
    77       m4_pushdef([ARG_][]arg, [])
       
    78       m4_set_add(defined_args, arg)
       
    79     ])
       
    80     m4_set_delete(legal_named_args)
       
    81     m4_set_delete(required_named_args)
       
    82 
       
    83     # Execute function body
       
    84     $4
       
    85 
       
    86     m4_foreach([arg], m4_indir([m4_dquote]m4_set_listc([defined_args])), [
       
    87       m4_popdef([ARG_][]arg)
       
    88     ])
       
    89 
       
    90     m4_set_delete(defined_args)
       
    91   ])
       
    92 ])
       
    93 
       
    94 # Test if $1 is a valid argument to $3 (often is $JAVA passed as $3)
       
    95 # If so, then append $1 to $2 \
       
    96 # Also set JVM_ARG_OK to true/false depending on outcome.
       
    97 AC_DEFUN([ADD_JVM_ARG_IF_OK],
       
    98 [
       
    99   $ECHO "Check if jvm arg is ok: $1" >&AS_MESSAGE_LOG_FD
       
   100   $ECHO "Command: $3 $1 -version" >&AS_MESSAGE_LOG_FD
       
   101   OUTPUT=`$3 $1 -version 2>&1`
       
   102   FOUND_WARN=`$ECHO "$OUTPUT" | $GREP -i warn`
       
   103   FOUND_VERSION=`$ECHO $OUTPUT | $GREP " version \""`
       
   104   if test "x$FOUND_VERSION" != x && test "x$FOUND_WARN" = x; then
       
   105     $2="[$]$2 $1"
       
   106     JVM_ARG_OK=true
       
   107   else
       
   108     $ECHO "Arg failed:" >&AS_MESSAGE_LOG_FD
       
   109     $ECHO "$OUTPUT" >&AS_MESSAGE_LOG_FD
       
   110     JVM_ARG_OK=false
       
   111   fi
       
   112 ])
       
   113 
       
   114 # Appends a string to a path variable, only adding the : when needed.
       
   115 AC_DEFUN([BASIC_APPEND_TO_PATH],
       
   116 [
       
   117   if test "x$2" != x; then
       
   118     if test "x[$]$1" = x; then
       
   119       $1="$2"
       
   120     else
       
   121       $1="[$]$1:$2"
       
   122     fi
       
   123   fi
       
   124 ])
       
   125 
       
   126 # Prepends a string to a path variable, only adding the : when needed.
       
   127 AC_DEFUN([BASIC_PREPEND_TO_PATH],
       
   128 [
       
   129   if test "x$2" != x; then
       
   130     if test "x[$]$1" = x; then
       
   131       $1="$2"
       
   132     else
       
   133       $1="$2:[$]$1"
       
   134     fi
       
   135   fi
       
   136 ])
       
   137 
       
   138 # This will make sure the given variable points to a full and proper
       
   139 # path. This means:
       
   140 # 1) There will be no spaces in the path. On unix platforms,
       
   141 #    spaces in the path will result in an error. On Windows,
       
   142 #    the path will be rewritten using short-style to be space-free.
       
   143 # 2) The path will be absolute, and it will be in unix-style (on
       
   144 #     cygwin).
       
   145 # $1: The name of the variable to fix
       
   146 AC_DEFUN([BASIC_FIXUP_PATH],
       
   147 [
       
   148   # Only process if variable expands to non-empty
       
   149 
       
   150   if test "x[$]$1" != x; then
       
   151     if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
       
   152       BASIC_FIXUP_PATH_CYGWIN($1)
       
   153     elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
       
   154       BASIC_FIXUP_PATH_MSYS($1)
       
   155     else
       
   156       # We're on a unix platform. Hooray! :)
       
   157       path="[$]$1"
       
   158       has_space=`$ECHO "$path" | $GREP " "`
       
   159       if test "x$has_space" != x; then
       
   160         AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.])
       
   161         AC_MSG_ERROR([Spaces are not allowed in this path.])
       
   162       fi
       
   163 
       
   164       # Use eval to expand a potential ~
       
   165       eval path="$path"
       
   166       if test ! -f "$path" && test ! -d "$path"; then
       
   167         AC_MSG_ERROR([The path of $1, which resolves as "$path", is not found.])
       
   168       fi
       
   169 
       
   170       if test -d "$path"; then
       
   171         $1="`cd "$path"; $THEPWDCMD -L`"
       
   172       else
       
   173         dir="`$DIRNAME "$path"`"
       
   174         base="`$BASENAME "$path"`"
       
   175         $1="`cd "$dir"; $THEPWDCMD -L`/$base"
       
   176       fi
       
   177     fi
       
   178   fi
       
   179 ])
       
   180 
       
   181 # This will make sure the given variable points to a executable
       
   182 # with a full and proper path. This means:
       
   183 # 1) There will be no spaces in the path. On unix platforms,
       
   184 #    spaces in the path will result in an error. On Windows,
       
   185 #    the path will be rewritten using short-style to be space-free.
       
   186 # 2) The path will be absolute, and it will be in unix-style (on
       
   187 #     cygwin).
       
   188 # Any arguments given to the executable is preserved.
       
   189 # If the input variable does not have a directory specification, then
       
   190 # it need to be in the PATH.
       
   191 # $1: The name of the variable to fix
       
   192 AC_DEFUN([BASIC_FIXUP_EXECUTABLE],
       
   193 [
       
   194   # Only process if variable expands to non-empty
       
   195 
       
   196   if test "x[$]$1" != x; then
       
   197     if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
       
   198       BASIC_FIXUP_EXECUTABLE_CYGWIN($1)
       
   199     elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
       
   200       BASIC_FIXUP_EXECUTABLE_MSYS($1)
       
   201     else
       
   202       # We're on a unix platform. Hooray! :)
       
   203       # First separate the path from the arguments. This will split at the first
       
   204       # space.
       
   205       complete="[$]$1"
       
   206       path="${complete%% *}"
       
   207       tmp="$complete EOL"
       
   208       arguments="${tmp#* }"
       
   209 
       
   210       # Cannot rely on the command "which" here since it doesn't always work.
       
   211       is_absolute_path=`$ECHO "$path" | $GREP ^/`
       
   212       if test -z "$is_absolute_path"; then
       
   213         # Path to executable is not absolute. Find it.
       
   214         IFS_save="$IFS"
       
   215         IFS=:
       
   216         for p in $PATH; do
       
   217           if test -f "$p/$path" && test -x "$p/$path"; then
       
   218             new_path="$p/$path"
       
   219             break
       
   220           fi
       
   221         done
       
   222         IFS="$IFS_save"
       
   223       else
       
   224         # This is an absolute path, we can use it without further modifications.
       
   225         new_path="$path"
       
   226       fi
       
   227 
       
   228       if test "x$new_path" = x; then
       
   229         AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
       
   230         has_space=`$ECHO "$complete" | $GREP " "`
       
   231         if test "x$has_space" != x; then
       
   232           AC_MSG_NOTICE([This might be caused by spaces in the path, which is not allowed.])
       
   233         fi
       
   234         AC_MSG_ERROR([Cannot locate the the path of $1])
       
   235       fi
       
   236     fi
       
   237 
       
   238     # Now join together the path and the arguments once again
       
   239     if test "x$arguments" != xEOL; then
       
   240       new_complete="$new_path ${arguments% *}"
       
   241     else
       
   242       new_complete="$new_path"
       
   243     fi
       
   244 
       
   245     if test "x$complete" != "x$new_complete"; then
       
   246       $1="$new_complete"
       
   247       AC_MSG_NOTICE([Rewriting $1 to "$new_complete"])
       
   248     fi
       
   249   fi
       
   250 ])
       
   251 
       
   252 AC_DEFUN([BASIC_REMOVE_SYMBOLIC_LINKS],
       
   253 [
       
   254   if test "x$OPENJDK_BUILD_OS" != xwindows; then
       
   255     # Follow a chain of symbolic links. Use readlink
       
   256     # where it exists, else fall back to horribly
       
   257     # complicated shell code.
       
   258     if test "x$READLINK_TESTED" != yes; then
       
   259       # On MacOSX there is a readlink tool with a different
       
   260       # purpose than the GNU readlink tool. Check the found readlink.
       
   261       ISGNU=`$READLINK --version 2>&1 | $GREP GNU`
       
   262       if test "x$ISGNU" = x; then
       
   263         # A readlink that we do not know how to use.
       
   264         # Are there other non-GNU readlinks out there?
       
   265         READLINK_TESTED=yes
       
   266         READLINK=
       
   267       fi
       
   268     fi
       
   269 
       
   270     if test "x$READLINK" != x; then
       
   271       $1=`$READLINK -f [$]$1`
       
   272     else
       
   273       # Save the current directory for restoring afterwards
       
   274       STARTDIR=$PWD
       
   275       COUNTER=0
       
   276       sym_link_dir=`$DIRNAME [$]$1`
       
   277       sym_link_file=`$BASENAME [$]$1`
       
   278       cd $sym_link_dir
       
   279       # Use -P flag to resolve symlinks in directories.
       
   280       cd `$THEPWDCMD -P`
       
   281       sym_link_dir=`$THEPWDCMD -P`
       
   282       # Resolve file symlinks
       
   283       while test $COUNTER -lt 20; do
       
   284         ISLINK=`$LS -l $sym_link_dir/$sym_link_file | $GREP '\->' | $SED -e 's/.*-> \(.*\)/\1/'`
       
   285         if test "x$ISLINK" == x; then
       
   286           # This is not a symbolic link! We are done!
       
   287           break
       
   288         fi
       
   289         # Again resolve directory symlinks since the target of the just found
       
   290         # link could be in a different directory
       
   291         cd `$DIRNAME $ISLINK`
       
   292         sym_link_dir=`$THEPWDCMD -P`
       
   293         sym_link_file=`$BASENAME $ISLINK`
       
   294         let COUNTER=COUNTER+1
       
   295       done
       
   296       cd $STARTDIR
       
   297       $1=$sym_link_dir/$sym_link_file
       
   298     fi
       
   299   fi
       
   300 ])
       
   301 
       
   302 # Register a --with argument but mark it as deprecated
       
   303 # $1: The name of the with argument to deprecate, not including --with-
       
   304 AC_DEFUN([BASIC_DEPRECATED_ARG_WITH],
       
   305 [
       
   306   AC_ARG_WITH($1, [AS_HELP_STRING([--with-$1],
       
   307       [Deprecated. Option is kept for backwards compatibility and is ignored])],
       
   308       [AC_MSG_WARN([Option --with-$1 is deprecated and will be ignored.])])
       
   309 ])
       
   310 
       
   311 # Register a --enable argument but mark it as deprecated
       
   312 # $1: The name of the with argument to deprecate, not including --enable-
       
   313 # $2: The name of the argument to deprecate, in shell variable style (i.e. with _ instead of -)
       
   314 # $3: Messages to user.
       
   315 AC_DEFUN([BASIC_DEPRECATED_ARG_ENABLE],
       
   316 [
       
   317   AC_ARG_ENABLE($1, [AS_HELP_STRING([--enable-$1],
       
   318       [Deprecated. Option is kept for backwards compatibility and is ignored])])
       
   319   if test "x$enable_$2" != x; then
       
   320     AC_MSG_WARN([Option --enable-$1 is deprecated and will be ignored.])
       
   321 
       
   322     if test "x$3" != x; then
       
   323       AC_MSG_WARN([$3])
       
   324     fi
       
   325 
       
   326   fi
       
   327 ])
       
   328 
       
   329 AC_DEFUN_ONCE([BASIC_INIT],
       
   330 [
       
   331   # Save the original command line. This is passed to us by the wrapper configure script.
       
   332   AC_SUBST(CONFIGURE_COMMAND_LINE)
       
   333   # Save the path variable before it gets changed
       
   334   ORIGINAL_PATH="$PATH"
       
   335   AC_SUBST(ORIGINAL_PATH)
       
   336   DATE_WHEN_CONFIGURED=`LANG=C date`
       
   337   AC_SUBST(DATE_WHEN_CONFIGURED)
       
   338   AC_MSG_NOTICE([Configuration created at $DATE_WHEN_CONFIGURED.])
       
   339   AC_MSG_NOTICE([configure script generated at timestamp $DATE_WHEN_GENERATED.])
       
   340 ])
       
   341 
       
   342 # Test that variable $1 denoting a program is not empty. If empty, exit with an error.
       
   343 # $1: variable to check
       
   344 AC_DEFUN([BASIC_CHECK_NONEMPTY],
       
   345 [
       
   346   if test "x[$]$1" = x; then
       
   347     AC_MSG_ERROR([Could not find required tool for $1])
       
   348   fi
       
   349 ])
       
   350 
       
   351 # Check that there are no unprocessed overridden variables left.
       
   352 # If so, they are an incorrect argument and we will exit with an error.
       
   353 AC_DEFUN([BASIC_CHECK_LEFTOVER_OVERRIDDEN],
       
   354 [
       
   355   if test "x$CONFIGURE_OVERRIDDEN_VARIABLES" != x; then
       
   356     # Replace the separating ! with spaces before presenting for end user.
       
   357     unknown_variables=${CONFIGURE_OVERRIDDEN_VARIABLES//!/ }
       
   358     AC_MSG_WARN([The following variables might be unknown to configure: $unknown_variables])
       
   359   fi
       
   360 ])
       
   361 
       
   362 # Setup a tool for the given variable. If correctly specified by the user,
       
   363 # use that value, otherwise search for the tool using the supplied code snippet.
       
   364 # $1: variable to set
       
   365 # $2: code snippet to call to look for the tool
       
   366 # $3: code snippet to call if variable was used to find tool
       
   367 AC_DEFUN([BASIC_SETUP_TOOL],
       
   368 [
       
   369   # Publish this variable in the help.
       
   370   AC_ARG_VAR($1, [Override default value for $1])
       
   371 
       
   372   if [[ -z "${$1+x}" ]]; then
       
   373     # The variable is not set by user, try to locate tool using the code snippet
       
   374     $2
       
   375   else
       
   376     # The variable is set, but is it from the command line or the environment?
       
   377 
       
   378     # Try to remove the string !$1! from our list.
       
   379     try_remove_var=${CONFIGURE_OVERRIDDEN_VARIABLES//!$1!/}
       
   380     if test "x$try_remove_var" = "x$CONFIGURE_OVERRIDDEN_VARIABLES"; then
       
   381       # If it failed, the variable was not from the command line. Ignore it,
       
   382       # but warn the user (except for BASH, which is always set by the calling BASH).
       
   383       if test "x$1" != xBASH; then
       
   384         AC_MSG_WARN([Ignoring value of $1 from the environment. Use command line variables instead.])
       
   385       fi
       
   386       # Try to locate tool using the code snippet
       
   387       $2
       
   388     else
       
   389       # If it succeeded, then it was overridden by the user. We will use it
       
   390       # for the tool.
       
   391 
       
   392       # First remove it from the list of overridden variables, so we can test
       
   393       # for unknown variables in the end.
       
   394       CONFIGURE_OVERRIDDEN_VARIABLES="$try_remove_var"
       
   395 
       
   396       # Check if we try to supply an empty value
       
   397       if test "x[$]$1" = x; then
       
   398         AC_MSG_NOTICE([Setting user supplied tool $1= (no value)])
       
   399         AC_MSG_CHECKING([for $1])
       
   400         AC_MSG_RESULT([disabled])
       
   401       else
       
   402         # Check if the provided tool contains a complete path.
       
   403         tool_specified="[$]$1"
       
   404         tool_basename="${tool_specified##*/}"
       
   405         if test "x$tool_basename" = "x$tool_specified"; then
       
   406           # A command without a complete path is provided, search $PATH.
       
   407           AC_MSG_NOTICE([Will search for user supplied tool $1=$tool_basename])
       
   408           AC_PATH_PROG($1, $tool_basename)
       
   409           if test "x[$]$1" = x; then
       
   410             AC_MSG_ERROR([User supplied tool $tool_basename could not be found])
       
   411           fi
       
   412         else
       
   413           # Otherwise we believe it is a complete path. Use it as it is.
       
   414           AC_MSG_NOTICE([Will use user supplied tool $1=$tool_specified])
       
   415           AC_MSG_CHECKING([for $1])
       
   416           if test ! -x "$tool_specified"; then
       
   417             AC_MSG_RESULT([not found])
       
   418             AC_MSG_ERROR([User supplied tool $1=$tool_specified does not exist or is not executable])
       
   419           fi
       
   420           AC_MSG_RESULT([$tool_specified])
       
   421         fi
       
   422       fi
       
   423     fi
       
   424     $3
       
   425   fi
       
   426 ])
       
   427 
       
   428 # Call BASIC_SETUP_TOOL with AC_PATH_PROGS to locate the tool
       
   429 # $1: variable to set
       
   430 # $2: executable name (or list of names) to look for
       
   431 # $3: [path]
       
   432 AC_DEFUN([BASIC_PATH_PROGS],
       
   433 [
       
   434   BASIC_SETUP_TOOL($1, [AC_PATH_PROGS($1, $2, , $3)])
       
   435 ])
       
   436 
       
   437 # Call BASIC_SETUP_TOOL with AC_CHECK_TOOLS to locate the tool
       
   438 # $1: variable to set
       
   439 # $2: executable name (or list of names) to look for
       
   440 AC_DEFUN([BASIC_CHECK_TOOLS],
       
   441 [
       
   442   BASIC_SETUP_TOOL($1, [AC_CHECK_TOOLS($1, $2)])
       
   443 ])
       
   444 
       
   445 # Like BASIC_PATH_PROGS but fails if no tool was found.
       
   446 # $1: variable to set
       
   447 # $2: executable name (or list of names) to look for
       
   448 # $3: [path]
       
   449 AC_DEFUN([BASIC_REQUIRE_PROGS],
       
   450 [
       
   451   BASIC_PATH_PROGS($1, $2, , $3)
       
   452   BASIC_CHECK_NONEMPTY($1)
       
   453 ])
       
   454 
       
   455 # Like BASIC_SETUP_TOOL but fails if no tool was found.
       
   456 # $1: variable to set
       
   457 # $2: autoconf macro to call to look for the special tool
       
   458 AC_DEFUN([BASIC_REQUIRE_SPECIAL],
       
   459 [
       
   460   BASIC_SETUP_TOOL($1, [$2])
       
   461   BASIC_CHECK_NONEMPTY($1)
       
   462 ])
       
   463 
       
   464 # Setup the most fundamental tools that relies on not much else to set up,
       
   465 # but is used by much of the early bootstrap code.
       
   466 AC_DEFUN_ONCE([BASIC_SETUP_FUNDAMENTAL_TOOLS],
       
   467 [
       
   468   # Start with tools that do not need have cross compilation support
       
   469   # and can be expected to be found in the default PATH. These tools are
       
   470   # used by configure.
       
   471 
       
   472   # First are all the simple required tools.
       
   473   BASIC_REQUIRE_PROGS(BASENAME, basename)
       
   474   BASIC_REQUIRE_PROGS(BASH, bash)
       
   475   BASIC_REQUIRE_PROGS(CAT, cat)
       
   476   BASIC_REQUIRE_PROGS(CHMOD, chmod)
       
   477   BASIC_REQUIRE_PROGS(CMP, cmp)
       
   478   BASIC_REQUIRE_PROGS(COMM, comm)
       
   479   BASIC_REQUIRE_PROGS(CP, cp)
       
   480   BASIC_REQUIRE_PROGS(CUT, cut)
       
   481   BASIC_REQUIRE_PROGS(DATE, date)
       
   482   BASIC_REQUIRE_PROGS(DIFF, [gdiff diff])
       
   483   BASIC_REQUIRE_PROGS(DIRNAME, dirname)
       
   484   BASIC_REQUIRE_PROGS(ECHO, echo)
       
   485   BASIC_REQUIRE_PROGS(EXPR, expr)
       
   486   BASIC_REQUIRE_PROGS(FILE, file)
       
   487   BASIC_REQUIRE_PROGS(FIND, find)
       
   488   BASIC_REQUIRE_PROGS(HEAD, head)
       
   489   BASIC_REQUIRE_PROGS(GUNZIP, gunzip)
       
   490   BASIC_REQUIRE_PROGS(GZIP, pigz gzip)
       
   491   BASIC_REQUIRE_PROGS(LN, ln)
       
   492   BASIC_REQUIRE_PROGS(LS, ls)
       
   493   BASIC_REQUIRE_PROGS(MKDIR, mkdir)
       
   494   BASIC_REQUIRE_PROGS(MKTEMP, mktemp)
       
   495   BASIC_REQUIRE_PROGS(MV, mv)
       
   496   BASIC_REQUIRE_PROGS(NAWK, [nawk gawk awk])
       
   497   BASIC_REQUIRE_PROGS(PRINTF, printf)
       
   498   BASIC_REQUIRE_PROGS(RM, rm)
       
   499   BASIC_REQUIRE_PROGS(RMDIR, rmdir)
       
   500   BASIC_REQUIRE_PROGS(SH, sh)
       
   501   BASIC_REQUIRE_PROGS(SORT, sort)
       
   502   BASIC_REQUIRE_PROGS(TAIL, tail)
       
   503   BASIC_REQUIRE_PROGS(TAR, gtar tar)
       
   504   BASIC_REQUIRE_PROGS(TEE, tee)
       
   505   BASIC_REQUIRE_PROGS(TOUCH, touch)
       
   506   BASIC_REQUIRE_PROGS(TR, tr)
       
   507   BASIC_REQUIRE_PROGS(UNAME, uname)
       
   508   BASIC_REQUIRE_PROGS(UNIQ, uniq)
       
   509   BASIC_REQUIRE_PROGS(WC, wc)
       
   510   BASIC_REQUIRE_PROGS(WHICH, which)
       
   511   BASIC_REQUIRE_PROGS(XARGS, xargs)
       
   512 
       
   513   # Then required tools that require some special treatment.
       
   514   BASIC_REQUIRE_SPECIAL(AWK, [AC_PROG_AWK])
       
   515   BASIC_REQUIRE_SPECIAL(GREP, [AC_PROG_GREP])
       
   516   BASIC_REQUIRE_SPECIAL(EGREP, [AC_PROG_EGREP])
       
   517   BASIC_REQUIRE_SPECIAL(FGREP, [AC_PROG_FGREP])
       
   518   BASIC_REQUIRE_SPECIAL(SED, [AC_PROG_SED])
       
   519 
       
   520   # Always force rm.
       
   521   RM="$RM -f"
       
   522 
       
   523   # pwd behaves differently on various platforms and some don't support the -L flag.
       
   524   # Always use the bash builtin pwd to get uniform behavior.
       
   525   THEPWDCMD=pwd
       
   526 
       
   527   # These are not required on all platforms
       
   528   BASIC_PATH_PROGS(CYGPATH, cygpath)
       
   529   BASIC_PATH_PROGS(READLINK, [greadlink readlink])
       
   530   BASIC_PATH_PROGS(DF, df)
       
   531   BASIC_PATH_PROGS(CPIO, [cpio bsdcpio])
       
   532   BASIC_PATH_PROGS(NICE, nice)
       
   533   BASIC_PATH_PROGS(PANDOC, pandoc)
       
   534 ])
       
   535 
       
   536 # Setup basic configuration paths, and platform-specific stuff related to PATHs.
       
   537 AC_DEFUN_ONCE([BASIC_SETUP_PATHS],
       
   538 [
       
   539   # Save the current directory this script was started from
       
   540   CURDIR="$PWD"
       
   541 
       
   542   # We might need to rewrite ORIGINAL_PATH, if it includes "#", to quote them
       
   543   # for make. We couldn't do this when we retrieved ORIGINAL_PATH, since SED
       
   544   # was not available at that time.
       
   545   REWRITTEN_PATH=`$ECHO "$ORIGINAL_PATH" | $SED -e 's/#/\\\\#/g'`
       
   546   if test "x$REWRITTEN_PATH" != "x$ORIGINAL_PATH"; then
       
   547     ORIGINAL_PATH="$REWRITTEN_PATH"
       
   548     AC_MSG_NOTICE([Rewriting ORIGINAL_PATH to $REWRITTEN_PATH])
       
   549   fi
       
   550 
       
   551   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
       
   552     PATH_SEP=";"
       
   553     BASIC_CHECK_PATHS_WINDOWS
       
   554   else
       
   555     PATH_SEP=":"
       
   556   fi
       
   557   AC_SUBST(PATH_SEP)
       
   558 
       
   559   # We get the top-level directory from the supporting wrappers.
       
   560   AC_MSG_CHECKING([for top-level directory])
       
   561   AC_MSG_RESULT([$TOPDIR])
       
   562   AC_SUBST(TOPDIR)
       
   563 
       
   564   # Save the original version of TOPDIR for string comparisons
       
   565   ORIGINAL_TOPDIR="$TOPDIR"
       
   566   AC_SUBST(ORIGINAL_TOPDIR)
       
   567 
       
   568   # We can only call BASIC_FIXUP_PATH after BASIC_CHECK_PATHS_WINDOWS.
       
   569   BASIC_FIXUP_PATH(CURDIR)
       
   570   BASIC_FIXUP_PATH(TOPDIR)
       
   571   # SRC_ROOT is a traditional alias for TOPDIR.
       
   572   SRC_ROOT=$TOPDIR
       
   573 
       
   574   # Calculate a canonical version of TOPDIR for string comparisons
       
   575   CANONICAL_TOPDIR=$TOPDIR
       
   576   BASIC_REMOVE_SYMBOLIC_LINKS([CANONICAL_TOPDIR])
       
   577   AC_SUBST(CANONICAL_TOPDIR)
       
   578 
       
   579   # Locate the directory of this script.
       
   580   AUTOCONF_DIR=$TOPDIR/common/autoconf
       
   581 
       
   582   # Setup username (for use in adhoc version strings etc)
       
   583   # Outer [ ] to quote m4.
       
   584   [ USERNAME=`$ECHO "$USER" | $TR -d -c '[a-z][A-Z][0-9]'` ]
       
   585   AC_SUBST(USERNAME)
       
   586 ])
       
   587 
       
   588 # Evaluates platform specific overrides for devkit variables.
       
   589 # $1: Name of variable
       
   590 AC_DEFUN([BASIC_EVAL_DEVKIT_VARIABLE],
       
   591 [
       
   592   if test "x[$]$1" = x; then
       
   593     eval $1="\${$1_${OPENJDK_TARGET_CPU}}"
       
   594   fi
       
   595 ])
       
   596 
       
   597 AC_DEFUN_ONCE([BASIC_SETUP_DEVKIT],
       
   598 [
       
   599   AC_ARG_WITH([devkit], [AS_HELP_STRING([--with-devkit],
       
   600       [use this devkit for compilers, tools and resources])],
       
   601       [
       
   602         BASIC_FIXUP_PATH([with_devkit])
       
   603         DEVKIT_ROOT="$with_devkit"
       
   604         # Check for a meta data info file in the root of the devkit
       
   605         if test -f "$DEVKIT_ROOT/devkit.info"; then
       
   606           . $DEVKIT_ROOT/devkit.info
       
   607           # This potentially sets the following:
       
   608           # A descriptive name of the devkit
       
   609           BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_NAME])
       
   610           # Corresponds to --with-extra-path
       
   611           BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_EXTRA_PATH])
       
   612           # Corresponds to --with-toolchain-path
       
   613           BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_TOOLCHAIN_PATH])
       
   614           # Corresponds to --with-sysroot
       
   615           BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_SYSROOT])
       
   616 
       
   617           # Identifies the Visual Studio version in the devkit
       
   618           BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_VS_VERSION])
       
   619           # The Visual Studio include environment variable
       
   620           BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_VS_INCLUDE])
       
   621           # The Visual Studio lib environment variable
       
   622           BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_VS_LIB])
       
   623           # Corresponds to --with-msvcr-dll
       
   624           BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_MSVCR_DLL])
       
   625           # Corresponds to --with-msvcp-dll
       
   626           BASIC_EVAL_DEVKIT_VARIABLE([DEVKIT_MSVCP_DLL])
       
   627         fi
       
   628 
       
   629         AC_MSG_CHECKING([for devkit])
       
   630         if test "x$DEVKIT_NAME" != x; then
       
   631           AC_MSG_RESULT([$DEVKIT_NAME in $DEVKIT_ROOT])
       
   632         else
       
   633           AC_MSG_RESULT([$DEVKIT_ROOT])
       
   634         fi
       
   635 
       
   636         BASIC_PREPEND_TO_PATH([EXTRA_PATH],$DEVKIT_EXTRA_PATH)
       
   637 
       
   638         # Fallback default of just /bin if DEVKIT_PATH is not defined
       
   639         if test "x$DEVKIT_TOOLCHAIN_PATH" = x; then
       
   640           DEVKIT_TOOLCHAIN_PATH="$DEVKIT_ROOT/bin"
       
   641         fi
       
   642         BASIC_PREPEND_TO_PATH([TOOLCHAIN_PATH],$DEVKIT_TOOLCHAIN_PATH)
       
   643 
       
   644         # If DEVKIT_SYSROOT is set, use that, otherwise try a couple of known
       
   645         # places for backwards compatiblity.
       
   646         if test "x$DEVKIT_SYSROOT" != x; then
       
   647           SYSROOT="$DEVKIT_SYSROOT"
       
   648         elif test -d "$DEVKIT_ROOT/$host_alias/libc"; then
       
   649           SYSROOT="$DEVKIT_ROOT/$host_alias/libc"
       
   650         elif test -d "$DEVKIT_ROOT/$host/sys-root"; then
       
   651           SYSROOT="$DEVKIT_ROOT/$host/sys-root"
       
   652         fi
       
   653       ]
       
   654   )
       
   655 
       
   656   # You can force the sysroot if the sysroot encoded into the compiler tools
       
   657   # is not correct.
       
   658   AC_ARG_WITH(sys-root, [AS_HELP_STRING([--with-sys-root],
       
   659       [alias for --with-sysroot for backwards compatability])],
       
   660       [SYSROOT=$with_sys_root]
       
   661   )
       
   662 
       
   663   AC_ARG_WITH(sysroot, [AS_HELP_STRING([--with-sysroot],
       
   664       [use this directory as sysroot])],
       
   665       [SYSROOT=$with_sysroot]
       
   666   )
       
   667 
       
   668   AC_ARG_WITH([tools-dir], [AS_HELP_STRING([--with-tools-dir],
       
   669       [alias for --with-toolchain-path for backwards compatibility])],
       
   670       [BASIC_PREPEND_TO_PATH([TOOLCHAIN_PATH],$with_tools_dir)]
       
   671   )
       
   672 
       
   673   AC_ARG_WITH([toolchain-path], [AS_HELP_STRING([--with-toolchain-path],
       
   674       [prepend these directories when searching for toolchain binaries (compilers etc)])],
       
   675       [BASIC_PREPEND_TO_PATH([TOOLCHAIN_PATH],$with_toolchain_path)]
       
   676   )
       
   677 
       
   678   AC_ARG_WITH([extra-path], [AS_HELP_STRING([--with-extra-path],
       
   679       [prepend these directories to the default path])],
       
   680       [BASIC_PREPEND_TO_PATH([EXTRA_PATH],$with_extra_path)]
       
   681   )
       
   682 
       
   683   if test "x$OPENJDK_BUILD_OS" = "xmacosx"; then
       
   684     # If a devkit has been supplied, find xcodebuild in the toolchain_path.
       
   685     # If not, detect if Xcode is installed by running xcodebuild -version
       
   686     # if no Xcode installed, xcodebuild exits with 1
       
   687     # if Xcode is installed, even if xcode-select is misconfigured, then it exits with 0
       
   688     if test "x$DEVKIT_ROOT" != x || /usr/bin/xcodebuild -version >/dev/null 2>&1; then
       
   689       # We need to use xcodebuild in the toolchain dir provided by the user, this will
       
   690       # fall back on the stub binary in /usr/bin/xcodebuild
       
   691       AC_PATH_PROG([XCODEBUILD], [xcodebuild], [/usr/bin/xcodebuild], [$TOOLCHAIN_PATH])
       
   692     else
       
   693       # this should result in SYSROOT being empty, unless --with-sysroot is provided
       
   694       # when only the command line tools are installed there are no SDKs, so headers
       
   695       # are copied into the system frameworks
       
   696       XCODEBUILD=
       
   697       AC_SUBST(XCODEBUILD)
       
   698     fi
       
   699 
       
   700     AC_MSG_CHECKING([for sdk name])
       
   701     AC_ARG_WITH([sdk-name], [AS_HELP_STRING([--with-sdk-name],
       
   702         [use the platform SDK of the given name. @<:@macosx@:>@])],
       
   703         [SDKNAME=$with_sdk_name]
       
   704     )
       
   705     AC_MSG_RESULT([$SDKNAME])
       
   706 
       
   707     # if toolchain path is specified then don't rely on system headers, they may not compile
       
   708     HAVE_SYSTEM_FRAMEWORK_HEADERS=0
       
   709     test -z "$TOOLCHAIN_PATH" && \
       
   710       HAVE_SYSTEM_FRAMEWORK_HEADERS=`test ! -f /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h; echo $?`
       
   711 
       
   712     if test -z "$SYSROOT"; then
       
   713       if test -n "$XCODEBUILD"; then
       
   714         # if we don't have system headers, use default SDK name (last resort)
       
   715         if test -z "$SDKNAME" -a $HAVE_SYSTEM_FRAMEWORK_HEADERS -eq 0; then
       
   716           SDKNAME=${SDKNAME:-macosx}
       
   717         fi
       
   718 
       
   719         if test -n "$SDKNAME"; then
       
   720           # Call xcodebuild to determine SYSROOT
       
   721           SYSROOT=`"$XCODEBUILD" -sdk $SDKNAME -version | $GREP '^Path: ' | $SED 's/Path: //'`
       
   722         fi
       
   723       else
       
   724         if test $HAVE_SYSTEM_FRAMEWORK_HEADERS -eq 0; then
       
   725           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])
       
   726         fi
       
   727       fi
       
   728     else
       
   729       # warn user if --with-sdk-name was also set
       
   730       if test -n "$with_sdk_name"; then
       
   731         AC_MSG_WARN([Both SYSROOT and --with-sdk-name are set, only SYSROOT will be used])
       
   732       fi
       
   733     fi
       
   734 
       
   735     if test $HAVE_SYSTEM_FRAMEWORK_HEADERS -eq 0 -a -z "$SYSROOT"; then
       
   736       # If no system framework headers, then SYSROOT must be set, or we won't build
       
   737       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.])
       
   738     fi
       
   739 
       
   740     # Perform a basic sanity test
       
   741     if test ! -f "$SYSROOT/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h"; then
       
   742       if test -z "$SYSROOT"; then
       
   743         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])
       
   744       else
       
   745         AC_MSG_ERROR([Invalid SDK or SYSROOT path, dependent framework headers not found])
       
   746       fi
       
   747     fi
       
   748 
       
   749     # set SDKROOT too, Xcode tools will pick it up
       
   750     SDKROOT="$SYSROOT"
       
   751     AC_SUBST(SDKROOT)
       
   752   fi
       
   753 
       
   754   # Prepend the extra path to the global path
       
   755   BASIC_PREPEND_TO_PATH([PATH],$EXTRA_PATH)
       
   756 
       
   757   AC_MSG_CHECKING([for sysroot])
       
   758   AC_MSG_RESULT([$SYSROOT])
       
   759   AC_MSG_CHECKING([for toolchain path])
       
   760   AC_MSG_RESULT([$TOOLCHAIN_PATH])
       
   761   AC_MSG_CHECKING([for extra path])
       
   762   AC_MSG_RESULT([$EXTRA_PATH])
       
   763 ])
       
   764 
       
   765 AC_DEFUN_ONCE([BASIC_SETUP_OUTPUT_DIR],
       
   766 [
       
   767 
       
   768   AC_ARG_WITH(conf-name, [AS_HELP_STRING([--with-conf-name],
       
   769       [use this as the name of the configuration @<:@generated from important configuration options@:>@])],
       
   770       [ CONF_NAME=${with_conf_name} ])
       
   771 
       
   772   # Test from where we are running configure, in or outside of src root.
       
   773   AC_MSG_CHECKING([where to store configuration])
       
   774   if test "x$CURDIR" = "x$SRC_ROOT" || test "x$CURDIR" = "x$SRC_ROOT/common" \
       
   775       || test "x$CURDIR" = "x$SRC_ROOT/common/autoconf" \
       
   776       || test "x$CURDIR" = "x$SRC_ROOT/make" ; then
       
   777     # We are running configure from the src root.
       
   778     # Create a default ./build/target-variant-debuglevel output root.
       
   779     if test "x${CONF_NAME}" = x; then
       
   780       AC_MSG_RESULT([in default location])
       
   781       CONF_NAME="${OPENJDK_TARGET_OS}-${OPENJDK_TARGET_CPU}-${JDK_VARIANT}-${JVM_VARIANTS_WITH_AND}-${DEBUG_LEVEL}"
       
   782     else
       
   783       AC_MSG_RESULT([in build directory with custom name])
       
   784     fi
       
   785     OUTPUT_ROOT="$SRC_ROOT/build/${CONF_NAME}"
       
   786     $MKDIR -p "$OUTPUT_ROOT"
       
   787     if test ! -d "$OUTPUT_ROOT"; then
       
   788       AC_MSG_ERROR([Could not create build directory $OUTPUT_ROOT])
       
   789     fi
       
   790   else
       
   791     # We are running configure from outside of the src dir.
       
   792     # Then use the current directory as output dir!
       
   793     # If configuration is situated in normal build directory, just use the build
       
   794     # directory name as configuration name, otherwise use the complete path.
       
   795     if test "x${CONF_NAME}" = x; then
       
   796       CONF_NAME=`$ECHO $CURDIR | $SED -e "s!^${SRC_ROOT}/build/!!"`
       
   797     fi
       
   798     OUTPUT_ROOT="$CURDIR"
       
   799     AC_MSG_RESULT([in current directory])
       
   800 
       
   801     # WARNING: This might be a bad thing to do. You need to be sure you want to
       
   802     # have a configuration in this directory. Do some sanity checks!
       
   803 
       
   804     if test ! -e "$OUTPUT_ROOT/spec.gmk"; then
       
   805       # If we have a spec.gmk, we have run here before and we are OK. Otherwise, check for
       
   806       # other files
       
   807       files_present=`$LS $OUTPUT_ROOT`
       
   808       # Configure has already touched config.log and confdefs.h in the current dir when this check
       
   809       # is performed.
       
   810       filtered_files=`$ECHO "$files_present" \
       
   811           | $SED -e 's/config.log//g' \
       
   812               -e 's/configure.log//g' \
       
   813               -e 's/confdefs.h//g' \
       
   814               -e 's/ //g' \
       
   815           | $TR -d '\n'`
       
   816       if test "x$filtered_files" != x; then
       
   817         AC_MSG_NOTICE([Current directory is $CURDIR.])
       
   818         AC_MSG_NOTICE([Since this is not the source root, configure will output the configuration here])
       
   819         AC_MSG_NOTICE([(as opposed to creating a configuration in <src_root>/build/<conf-name>).])
       
   820         AC_MSG_NOTICE([However, this directory is not empty. This is not allowed, since it could])
       
   821         AC_MSG_NOTICE([seriously mess up just about everything.])
       
   822         AC_MSG_NOTICE([Try 'cd $SRC_ROOT' and restart configure])
       
   823         AC_MSG_NOTICE([(or create a new empty directory and cd to it).])
       
   824         AC_MSG_ERROR([Will not continue creating configuration in $CURDIR])
       
   825       fi
       
   826     fi
       
   827   fi
       
   828   AC_MSG_CHECKING([what configuration name to use])
       
   829   AC_MSG_RESULT([$CONF_NAME])
       
   830 
       
   831   BASIC_FIXUP_PATH(OUTPUT_ROOT)
       
   832 
       
   833   CONFIGURESUPPORT_OUTPUTDIR="$OUTPUT_ROOT/configure-support"
       
   834   $MKDIR -p "$CONFIGURESUPPORT_OUTPUTDIR"
       
   835 
       
   836   SPEC="$OUTPUT_ROOT/spec.gmk"
       
   837   AC_SUBST(SPEC)
       
   838   AC_SUBST(CONF_NAME)
       
   839   AC_SUBST(OUTPUT_ROOT)
       
   840   AC_SUBST(CONFIGURESUPPORT_OUTPUTDIR)
       
   841 
       
   842   # The spec.gmk file contains all variables for the make system.
       
   843   AC_CONFIG_FILES([$OUTPUT_ROOT/spec.gmk:$AUTOCONF_DIR/spec.gmk.in])
       
   844   # The bootcycle-spec.gmk file contains support for boot cycle builds.
       
   845   AC_CONFIG_FILES([$OUTPUT_ROOT/bootcycle-spec.gmk:$AUTOCONF_DIR/bootcycle-spec.gmk.in])
       
   846   # The buildjdk-spec.gmk file contains support for building a buildjdk when cross compiling.
       
   847   AC_CONFIG_FILES([$OUTPUT_ROOT/buildjdk-spec.gmk:$AUTOCONF_DIR/buildjdk-spec.gmk.in])
       
   848   # The compare.sh is used to compare the build output to other builds.
       
   849   AC_CONFIG_FILES([$OUTPUT_ROOT/compare.sh:$AUTOCONF_DIR/compare.sh.in])
       
   850   # The generated Makefile knows where the spec.gmk is and where the source is.
       
   851   # You can run make from the OUTPUT_ROOT, or from the top-level Makefile
       
   852   # which will look for generated configurations
       
   853   AC_CONFIG_FILES([$OUTPUT_ROOT/Makefile:$AUTOCONF_DIR/Makefile.in])
       
   854 ])
       
   855 
       
   856 #%%% Simple tools %%%
       
   857 
       
   858 # Check if we have found a usable version of make
       
   859 # $1: the path to a potential make binary (or empty)
       
   860 # $2: the description on how we found this
       
   861 AC_DEFUN([BASIC_CHECK_MAKE_VERSION],
       
   862 [
       
   863   MAKE_CANDIDATE="$1"
       
   864   DESCRIPTION="$2"
       
   865 
       
   866   # On Cygwin, we require a newer version of make than on other platforms
       
   867   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
       
   868     MAKE_VERSION_EXPR="-e 4\."
       
   869     MAKE_REQUIRED_VERSION="4.0"
       
   870    else
       
   871     MAKE_VERSION_EXPR="-e 3\.8[[12]] -e 4\."
       
   872     MAKE_REQUIRED_VERSION="3.81"
       
   873   fi
       
   874 
       
   875   if test "x$MAKE_CANDIDATE" != x; then
       
   876     AC_MSG_NOTICE([Testing potential make at $MAKE_CANDIDATE, found using $DESCRIPTION])
       
   877     MAKE_VERSION_STRING=`$MAKE_CANDIDATE --version | $HEAD -n 1`
       
   878     IS_GNU_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP 'GNU Make'`
       
   879     if test "x$IS_GNU_MAKE" = x; then
       
   880       AC_MSG_NOTICE([Found potential make at $MAKE_CANDIDATE, however, this is not GNU Make. Ignoring.])
       
   881     else
       
   882       IS_MODERN_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP $MAKE_VERSION_EXPR`
       
   883       if test "x$IS_MODERN_MAKE" = x; then
       
   884         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.])
       
   885       else
       
   886         if test "x$OPENJDK_BUILD_OS" = "xwindows"; then
       
   887           if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
       
   888             MAKE_EXPECTED_ENV='cygwin'
       
   889           elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
       
   890             MAKE_EXPECTED_ENV='msys'
       
   891           else
       
   892             AC_MSG_ERROR([Unknown Windows environment])
       
   893           fi
       
   894           MAKE_BUILT_FOR=`$MAKE_CANDIDATE --version | $GREP -i 'built for'`
       
   895           IS_MAKE_CORRECT_ENV=`$ECHO $MAKE_BUILT_FOR | $GREP $MAKE_EXPECTED_ENV`
       
   896         else
       
   897           # Not relevant for non-Windows
       
   898           IS_MAKE_CORRECT_ENV=true
       
   899         fi
       
   900         if test "x$IS_MAKE_CORRECT_ENV" = x; then
       
   901           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.])
       
   902         else
       
   903           FOUND_MAKE=$MAKE_CANDIDATE
       
   904           BASIC_FIXUP_EXECUTABLE(FOUND_MAKE)
       
   905         fi
       
   906       fi
       
   907     fi
       
   908   fi
       
   909 ])
       
   910 
       
   911 AC_DEFUN([BASIC_CHECK_MAKE_OUTPUT_SYNC],
       
   912 [
       
   913   # Check if make supports the output sync option and if so, setup using it.
       
   914   AC_MSG_CHECKING([if make --output-sync is supported])
       
   915   if $MAKE --version -O > /dev/null 2>&1; then
       
   916     OUTPUT_SYNC_SUPPORTED=true
       
   917     AC_MSG_RESULT([yes])
       
   918     AC_MSG_CHECKING([for output-sync value])
       
   919     AC_ARG_WITH([output-sync], [AS_HELP_STRING([--with-output-sync],
       
   920       [set make output sync type if supported by make. @<:@recurse@:>@])],
       
   921       [OUTPUT_SYNC=$with_output_sync])
       
   922     if test "x$OUTPUT_SYNC" = "x"; then
       
   923       OUTPUT_SYNC=none
       
   924     fi
       
   925     AC_MSG_RESULT([$OUTPUT_SYNC])
       
   926     if ! $MAKE --version -O$OUTPUT_SYNC > /dev/null 2>&1; then
       
   927       AC_MSG_ERROR([Make did not the support the value $OUTPUT_SYNC as output sync type.])
       
   928     fi
       
   929   else
       
   930     OUTPUT_SYNC_SUPPORTED=false
       
   931     AC_MSG_RESULT([no])
       
   932   fi
       
   933   AC_SUBST(OUTPUT_SYNC_SUPPORTED)
       
   934   AC_SUBST(OUTPUT_SYNC)
       
   935 ])
       
   936 
       
   937 # Goes looking for a usable version of GNU make.
       
   938 AC_DEFUN([BASIC_CHECK_GNU_MAKE],
       
   939 [
       
   940   BASIC_SETUP_TOOL([MAKE],
       
   941   [
       
   942     # Try our hardest to locate a correct version of GNU make
       
   943     AC_PATH_PROGS(CHECK_GMAKE, gmake)
       
   944     BASIC_CHECK_MAKE_VERSION("$CHECK_GMAKE", [gmake in PATH])
       
   945 
       
   946     if test "x$FOUND_MAKE" = x; then
       
   947       AC_PATH_PROGS(CHECK_MAKE, make)
       
   948       BASIC_CHECK_MAKE_VERSION("$CHECK_MAKE", [make in PATH])
       
   949     fi
       
   950 
       
   951     if test "x$FOUND_MAKE" = x; then
       
   952       if test "x$TOOLCHAIN_PATH" != x; then
       
   953         # We have a toolchain path, check that as well before giving up.
       
   954         OLD_PATH=$PATH
       
   955         PATH=$TOOLCHAIN_PATH:$PATH
       
   956         AC_PATH_PROGS(CHECK_TOOLSDIR_GMAKE, gmake)
       
   957         BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_GMAKE", [gmake in tools-dir])
       
   958         if test "x$FOUND_MAKE" = x; then
       
   959           AC_PATH_PROGS(CHECK_TOOLSDIR_MAKE, make)
       
   960           BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_MAKE", [make in tools-dir])
       
   961         fi
       
   962         PATH=$OLD_PATH
       
   963       fi
       
   964     fi
       
   965 
       
   966     if test "x$FOUND_MAKE" = x; then
       
   967       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.])
       
   968     fi
       
   969   ],[
       
   970     # If MAKE was set by user, verify the version
       
   971     BASIC_CHECK_MAKE_VERSION("$MAKE", [user supplied MAKE=$MAKE])
       
   972     if test "x$FOUND_MAKE" = x; then
       
   973       AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not GNU make $MAKE_REQUIRED_VERSION or newer.])
       
   974     fi
       
   975   ])
       
   976 
       
   977   MAKE=$FOUND_MAKE
       
   978   AC_SUBST(MAKE)
       
   979   AC_MSG_NOTICE([Using GNU make at $FOUND_MAKE (version: $MAKE_VERSION_STRING)])
       
   980 
       
   981   BASIC_CHECK_MAKE_OUTPUT_SYNC
       
   982 ])
       
   983 
       
   984 AC_DEFUN([BASIC_CHECK_FIND_DELETE],
       
   985 [
       
   986   # Test if find supports -delete
       
   987   AC_MSG_CHECKING([if find supports -delete])
       
   988   FIND_DELETE="-delete"
       
   989 
       
   990   DELETEDIR=`$MKTEMP -d tmp.XXXXXXXXXX` || (echo Could not create temporary directory!; exit $?)
       
   991 
       
   992   echo Hejsan > $DELETEDIR/TestIfFindSupportsDelete
       
   993 
       
   994   TEST_DELETE=`$FIND "$DELETEDIR" -name TestIfFindSupportsDelete $FIND_DELETE 2>&1`
       
   995   if test -f $DELETEDIR/TestIfFindSupportsDelete; then
       
   996     # No, it does not.
       
   997     $RM $DELETEDIR/TestIfFindSupportsDelete
       
   998     if test "x$OPENJDK_TARGET_OS" = "xaix"; then
       
   999       # AIX 'find' is buggy if called with '-exec {} \+' and an empty file list
       
  1000       FIND_DELETE="-print | $XARGS $RM"
       
  1001     else
       
  1002       FIND_DELETE="-exec $RM \{\} \+"
       
  1003     fi
       
  1004     AC_MSG_RESULT([no])
       
  1005   else
       
  1006     AC_MSG_RESULT([yes])
       
  1007   fi
       
  1008   $RMDIR $DELETEDIR
       
  1009   AC_SUBST(FIND_DELETE)
       
  1010 ])
       
  1011 
       
  1012 AC_DEFUN([BASIC_CHECK_TAR],
       
  1013 [
       
  1014   # Test which kind of tar was found
       
  1015   if test "x$($TAR --version | $GREP "GNU tar")" != "x"; then
       
  1016     TAR_TYPE="gnu"
       
  1017   elif test "x$($TAR --version | $GREP "bsdtar")" != "x"; then
       
  1018     TAR_TYPE="bsd"
       
  1019   elif test "x$($TAR -v | $GREP "bsdtar")" != "x"; then
       
  1020     TAR_TYPE="bsd"
       
  1021   elif test "x$OPENJDK_BUILD_OS" = "xsolaris"; then
       
  1022     TAR_TYPE="solaris"
       
  1023   fi
       
  1024   AC_MSG_CHECKING([what type of tar was found])
       
  1025   AC_MSG_RESULT([$TAR_TYPE])
       
  1026 
       
  1027   TAR_CREATE_FILE_PARAM=""
       
  1028 
       
  1029   if test "x$TAR_TYPE" = "xgnu"; then
       
  1030     TAR_INCLUDE_PARAM="T"
       
  1031     TAR_SUPPORTS_TRANSFORM="true"
       
  1032     if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then
       
  1033       # When using gnu tar for Solaris targets, need to use compatibility mode
       
  1034       TAR_CREATE_EXTRA_PARAM="--format=ustar"
       
  1035     fi
       
  1036   else
       
  1037     TAR_INCLUDE_PARAM="I"
       
  1038     TAR_SUPPORTS_TRANSFORM="false"
       
  1039   fi
       
  1040   AC_SUBST(TAR_TYPE)
       
  1041   AC_SUBST(TAR_CREATE_EXTRA_PARAM)
       
  1042   AC_SUBST(TAR_INCLUDE_PARAM)
       
  1043   AC_SUBST(TAR_SUPPORTS_TRANSFORM)
       
  1044 ])
       
  1045 
       
  1046 AC_DEFUN([BASIC_CHECK_GREP],
       
  1047 [
       
  1048   # Test that grep supports -Fx with a list of pattern which includes null pattern.
       
  1049   # This is a problem for the grep resident on AIX.
       
  1050   AC_MSG_CHECKING([that grep ($GREP) -Fx handles empty lines in the pattern list correctly])
       
  1051   # Multiple subsequent spaces..
       
  1052   STACK_SPACES='aaa   bbb   ccc'
       
  1053   # ..converted to subsequent newlines, causes STACK_LIST to be a list with some empty
       
  1054   # patterns in it.
       
  1055   STACK_LIST=${STACK_SPACES// /$'\n'}
       
  1056   NEEDLE_SPACES='ccc bbb aaa'
       
  1057   NEEDLE_LIST=${NEEDLE_SPACES// /$'\n'}
       
  1058   RESULT="$($GREP -Fvx "$STACK_LIST" <<< "$NEEDLE_LIST")"
       
  1059   if test "x$RESULT" == "x"; then
       
  1060     AC_MSG_RESULT([yes])
       
  1061   else
       
  1062     if test "x$OPENJDK_TARGET_OS" = "xaix"; then
       
  1063       ADDINFO="Please make sure you use GNU grep, usually found at /opt/freeware/bin."
       
  1064     fi
       
  1065     AC_MSG_ERROR([grep does not handle -Fx correctly. ${ADDINFO}])
       
  1066   fi
       
  1067 ])
       
  1068 
       
  1069 AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
       
  1070 [
       
  1071   BASIC_CHECK_GNU_MAKE
       
  1072 
       
  1073   BASIC_CHECK_FIND_DELETE
       
  1074   BASIC_CHECK_TAR
       
  1075   BASIC_CHECK_GREP
       
  1076 
       
  1077   # These tools might not be installed by default,
       
  1078   # need hint on how to install them.
       
  1079   BASIC_REQUIRE_PROGS(UNZIP, unzip)
       
  1080   # Since zip uses "ZIP" as a environment variable for passing options, we need
       
  1081   # to name our variable differently, hence ZIPEXE.
       
  1082   BASIC_REQUIRE_PROGS(ZIPEXE, zip)
       
  1083 
       
  1084   # Non-required basic tools
       
  1085 
       
  1086   BASIC_PATH_PROGS(LDD, ldd)
       
  1087   if test "x$LDD" = "x"; then
       
  1088     # List shared lib dependencies is used for
       
  1089     # debug output and checking for forbidden dependencies.
       
  1090     # We can build without it.
       
  1091     LDD="true"
       
  1092   fi
       
  1093   BASIC_PATH_PROGS(OTOOL, otool)
       
  1094   if test "x$OTOOL" = "x"; then
       
  1095     OTOOL="true"
       
  1096   fi
       
  1097   BASIC_PATH_PROGS(READELF, [greadelf readelf])
       
  1098   BASIC_PATH_PROGS(DOT, dot)
       
  1099   BASIC_PATH_PROGS(HG, hg)
       
  1100   BASIC_PATH_PROGS(STAT, stat)
       
  1101   BASIC_PATH_PROGS(TIME, time)
       
  1102   BASIC_PATH_PROGS(FLOCK, flock)
       
  1103   # Dtrace is usually found in /usr/sbin on Solaris, but that directory may not
       
  1104   # be in the user path.
       
  1105   BASIC_PATH_PROGS(DTRACE, dtrace, $PATH:/usr/sbin)
       
  1106   BASIC_PATH_PROGS(PATCH, [gpatch patch])
       
  1107   # Check if it's GNU time
       
  1108   IS_GNU_TIME=`$TIME --version 2>&1 | $GREP 'GNU time'`
       
  1109   if test "x$IS_GNU_TIME" != x; then
       
  1110     IS_GNU_TIME=yes
       
  1111   else
       
  1112     IS_GNU_TIME=no
       
  1113   fi
       
  1114   AC_SUBST(IS_GNU_TIME)
       
  1115 
       
  1116   if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
       
  1117     BASIC_REQUIRE_PROGS(DSYMUTIL, dsymutil)
       
  1118     BASIC_REQUIRE_PROGS(XATTR, xattr)
       
  1119     BASIC_PATH_PROGS(CODESIGN, codesign)
       
  1120     if test "x$CODESIGN" != "x"; then
       
  1121       # Verify that the openjdk_codesign certificate is present
       
  1122       AC_MSG_CHECKING([if openjdk_codesign certificate is present])
       
  1123       $RM codesign-testfile
       
  1124       $TOUCH codesign-testfile
       
  1125       $CODESIGN -s openjdk_codesign codesign-testfile 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD || CODESIGN=
       
  1126       $RM codesign-testfile
       
  1127       if test "x$CODESIGN" = x; then
       
  1128         AC_MSG_RESULT([no])
       
  1129       else
       
  1130         AC_MSG_RESULT([yes])
       
  1131       fi
       
  1132     fi
       
  1133     BASIC_REQUIRE_PROGS(SETFILE, SetFile)
       
  1134   fi
       
  1135 ])
       
  1136 
       
  1137 # Check if build directory is on local disk. If not possible to determine,
       
  1138 # we prefer to claim it's local.
       
  1139 # Argument 1: directory to test
       
  1140 # Argument 2: what to do if it is on local disk
       
  1141 # Argument 3: what to do otherwise (remote disk or failure)
       
  1142 AC_DEFUN([BASIC_CHECK_DIR_ON_LOCAL_DISK],
       
  1143 [
       
  1144   # df -l lists only local disks; if the given directory is not found then
       
  1145   # a non-zero exit code is given
       
  1146   if test "x$DF" = x; then
       
  1147     if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
       
  1148       # msys does not have df; use Windows "net use" instead.
       
  1149       IS_NETWORK_DISK=`net use | grep \`pwd -W | cut -d ":" -f 1 | tr a-z A-Z\`:`
       
  1150       if test "x$IS_NETWORK_DISK" = x; then
       
  1151         $2
       
  1152       else
       
  1153         $3
       
  1154       fi
       
  1155     else
       
  1156       # No df here, say it's local
       
  1157       $2
       
  1158     fi
       
  1159   else
       
  1160     if $DF -l $1 > /dev/null 2>&1; then
       
  1161       $2
       
  1162     else
       
  1163       $3
       
  1164     fi
       
  1165   fi
       
  1166 ])
       
  1167 
       
  1168 # Check that source files have basic read permissions set. This might
       
  1169 # not be the case in cygwin in certain conditions.
       
  1170 AC_DEFUN_ONCE([BASIC_CHECK_SRC_PERMS],
       
  1171 [
       
  1172   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
       
  1173     file_to_test="$SRC_ROOT/LICENSE"
       
  1174     if test `$STAT -c '%a' "$file_to_test"` -lt 400; then
       
  1175       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.])
       
  1176     fi
       
  1177   fi
       
  1178 ])
       
  1179 
       
  1180 AC_DEFUN_ONCE([BASIC_TEST_USABILITY_ISSUES],
       
  1181 [
       
  1182   # Did user specify any unknown variables?
       
  1183   BASIC_CHECK_LEFTOVER_OVERRIDDEN
       
  1184 
       
  1185   AC_MSG_CHECKING([if build directory is on local disk])
       
  1186   BASIC_CHECK_DIR_ON_LOCAL_DISK($OUTPUT_ROOT,
       
  1187       [OUTPUT_DIR_IS_LOCAL="yes"],
       
  1188       [OUTPUT_DIR_IS_LOCAL="no"])
       
  1189   AC_MSG_RESULT($OUTPUT_DIR_IS_LOCAL)
       
  1190 
       
  1191   BASIC_CHECK_SRC_PERMS
       
  1192 
       
  1193   # Check if the user has any old-style ALT_ variables set.
       
  1194   FOUND_ALT_VARIABLES=`env | grep ^ALT_`
       
  1195 
       
  1196   # Before generating output files, test if they exist. If they do, this is a reconfigure.
       
  1197   # Since we can't properly handle the dependencies for this, warn the user about the situation
       
  1198   if test -e $OUTPUT_ROOT/spec.gmk; then
       
  1199     IS_RECONFIGURE=yes
       
  1200   else
       
  1201     IS_RECONFIGURE=no
       
  1202   fi
       
  1203 ])
       
  1204 
       
  1205 # Check for support for specific options in bash
       
  1206 AC_DEFUN_ONCE([BASIC_CHECK_BASH_OPTIONS],
       
  1207 [
       
  1208   # Check bash version
       
  1209   # Extra [ ] to stop m4 mangling
       
  1210   [ BASH_VER=`$BASH --version | $SED -n  -e 's/^.*bash.*ersion *\([0-9.]*\).*$/\1/ p'` ]
       
  1211   AC_MSG_CHECKING([bash version])
       
  1212   AC_MSG_RESULT([$BASH_VER])
       
  1213 
       
  1214   BASH_MAJOR=`$ECHO $BASH_VER | $CUT -d . -f 1`
       
  1215   BASH_MINOR=`$ECHO $BASH_VER | $CUT -d . -f 2`
       
  1216   if test $BASH_MAJOR -lt 3 || (test $BASH_MAJOR -eq 3 && test $BASH_MINOR -lt 2); then
       
  1217     AC_MSG_ERROR([bash version 3.2 or better is required])
       
  1218   fi
       
  1219 
       
  1220   # Test if bash supports pipefail.
       
  1221   AC_MSG_CHECKING([if bash supports pipefail])
       
  1222   if ${BASH} -c 'set -o pipefail'; then
       
  1223     BASH_ARGS="$BASH_ARGS -o pipefail"
       
  1224     AC_MSG_RESULT([yes])
       
  1225   else
       
  1226     AC_MSG_RESULT([no])
       
  1227   fi
       
  1228 
       
  1229   AC_MSG_CHECKING([if bash supports errexit (-e)])
       
  1230   if ${BASH} -e -c 'true'; then
       
  1231     BASH_ARGS="$BASH_ARGS -e"
       
  1232     AC_MSG_RESULT([yes])
       
  1233   else
       
  1234     AC_MSG_RESULT([no])
       
  1235   fi
       
  1236 
       
  1237   AC_SUBST(BASH_ARGS)
       
  1238 ])
       
  1239 
       
  1240 ################################################################################
       
  1241 #
       
  1242 # Default make target
       
  1243 #
       
  1244 AC_DEFUN_ONCE([BASIC_SETUP_DEFAULT_MAKE_TARGET],
       
  1245 [
       
  1246   AC_ARG_WITH(default-make-target, [AS_HELP_STRING([--with-default-make-target],
       
  1247       [set the default make target @<:@exploded-image@:>@])])
       
  1248   if test "x$with_default_make_target" = "x" \
       
  1249       || test "x$with_default_make_target" = "xyes"; then
       
  1250     DEFAULT_MAKE_TARGET="exploded-image"
       
  1251   elif test "x$with_default_make_target" = "xno"; then
       
  1252     AC_MSG_ERROR([--without-default-make-target is not a valid option])
       
  1253   else
       
  1254     DEFAULT_MAKE_TARGET="$with_default_make_target"
       
  1255   fi
       
  1256 
       
  1257   AC_SUBST(DEFAULT_MAKE_TARGET)
       
  1258 ])
       
  1259 
       
  1260 # Code to run after AC_OUTPUT
       
  1261 AC_DEFUN_ONCE([BASIC_POST_CONFIG_OUTPUT],
       
  1262 [
       
  1263   # Try to move config.log (generated by autoconf) to the configure-support directory.
       
  1264   if test -e ./config.log; then
       
  1265     $MV -f ./config.log "$CONFIGURESUPPORT_OUTPUTDIR/config.log" 2> /dev/null
       
  1266   fi
       
  1267 
       
  1268   # Rotate our log file (configure.log)
       
  1269   if test -e "$OUTPUT_ROOT/configure.log.old"; then
       
  1270     $RM -f "$OUTPUT_ROOT/configure.log.old"
       
  1271   fi
       
  1272   if test -e "$OUTPUT_ROOT/configure.log"; then
       
  1273     $MV -f "$OUTPUT_ROOT/configure.log" "$OUTPUT_ROOT/configure.log.old" 2> /dev/null
       
  1274   fi
       
  1275 
       
  1276   # Move configure.log from current directory to the build output root
       
  1277   if test -e ./configure.log; then
       
  1278     $MV -f ./configure.log "$OUTPUT_ROOT/configure.log" 2> /dev/null
       
  1279   fi
       
  1280 
       
  1281   # Make the compare script executable
       
  1282   $CHMOD +x $OUTPUT_ROOT/compare.sh
       
  1283 ])