basics.m4 revision 980:73d85b04c45c
1#
2# Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
3# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4#
5# This code is free software; you can redistribute it and/or modify it
6# under the terms of the GNU General Public License version 2 only, as
7# published by the Free Software Foundation.  Oracle designates this
8# particular file as subject to the "Classpath" exception as provided
9# by Oracle in the LICENSE file that accompanied this code.
10#
11# This code is distributed in the hope that it will be useful, but WITHOUT
12# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14# version 2 for more details (a copy is included in the LICENSE file that
15# accompanied this code).
16#
17# You should have received a copy of the GNU General Public License version
18# 2 along with this work; if not, write to the Free Software Foundation,
19# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20#
21# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22# or visit www.oracle.com if you need additional information or have any
23# questions.
24#
25
26# Test if $1 is a valid argument to $3 (often is $JAVA passed as $3)
27# If so, then append $1 to $2 \
28# Also set JVM_ARG_OK to true/false depending on outcome.
29AC_DEFUN([ADD_JVM_ARG_IF_OK],
30[
31  $ECHO "Check if jvm arg is ok: $1" >&AS_MESSAGE_LOG_FD
32  $ECHO "Command: $3 $1 -version" >&AS_MESSAGE_LOG_FD
33  OUTPUT=`$3 $1 -version 2>&1`
34  FOUND_WARN=`$ECHO "$OUTPUT" | grep -i warn`
35  FOUND_VERSION=`$ECHO $OUTPUT | grep " version \""`
36  if test "x$FOUND_VERSION" != x && test "x$FOUND_WARN" = x; then
37    $2="[$]$2 $1"
38    JVM_ARG_OK=true
39  else
40    $ECHO "Arg failed:" >&AS_MESSAGE_LOG_FD
41    $ECHO "$OUTPUT" >&AS_MESSAGE_LOG_FD
42    JVM_ARG_OK=false
43  fi
44])
45
46# Appends a string to a path variable, only adding the : when needed.
47AC_DEFUN([BASIC_APPEND_TO_PATH],
48[
49  if test "x[$]$1" = x; then
50    $1="$2"
51  else
52    $1="[$]$1:$2"
53  fi
54])
55
56# This will make sure the given variable points to a full and proper
57# path. This means:
58# 1) There will be no spaces in the path. On posix platforms,
59#    spaces in the path will result in an error. On Windows,
60#    the path will be rewritten using short-style to be space-free.
61# 2) The path will be absolute, and it will be in unix-style (on
62#     cygwin).
63# $1: The name of the variable to fix
64AC_DEFUN([BASIC_FIXUP_PATH],
65[
66  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
67    BASIC_FIXUP_PATH_CYGWIN($1)
68  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
69    BASIC_FIXUP_PATH_MSYS($1)
70  else
71    # We're on a posix platform. Hooray! :)
72    path="[$]$1"
73    has_space=`$ECHO "$path" | $GREP " "`
74    if test "x$has_space" != x; then
75      AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.])
76      AC_MSG_ERROR([Spaces are not allowed in this path.])
77    fi
78
79    # Use eval to expand a potential ~
80    eval path="$path"
81    if test ! -f "$path" && test ! -d "$path"; then
82      AC_MSG_ERROR([The path of $1, which resolves as "$path", is not found.])
83    fi
84
85    $1="`cd "$path"; $THEPWDCMD -L`"
86  fi
87])
88
89# This will make sure the given variable points to a executable
90# with a full and proper path. This means:
91# 1) There will be no spaces in the path. On posix platforms,
92#    spaces in the path will result in an error. On Windows,
93#    the path will be rewritten using short-style to be space-free.
94# 2) The path will be absolute, and it will be in unix-style (on
95#     cygwin).
96# Any arguments given to the executable is preserved.
97# If the input variable does not have a directory specification, then
98# it need to be in the PATH.
99# $1: The name of the variable to fix
100AC_DEFUN([BASIC_FIXUP_EXECUTABLE],
101[
102  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
103    BASIC_FIXUP_EXECUTABLE_CYGWIN($1)
104  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
105    BASIC_FIXUP_EXECUTABLE_MSYS($1)
106  else
107    # We're on a posix platform. Hooray! :)
108    # First separate the path from the arguments. This will split at the first
109    # space.
110    complete="[$]$1"
111    path="${complete%% *}"
112    tmp="$complete EOL"
113    arguments="${tmp#* }"
114
115    # Cannot rely on the command "which" here since it doesn't always work.
116    is_absolute_path=`$ECHO "$path" | $GREP ^/`
117    if test -z "$is_absolute_path"; then
118      # Path to executable is not absolute. Find it.
119      IFS_save="$IFS"
120      IFS=:
121      for p in $PATH; do
122        if test -f "$p/$path" && test -x "$p/$path"; then
123          new_path="$p/$path"
124          break
125        fi
126      done
127      IFS="$IFS_save"
128    else
129      # This is an absolute path, we can use it without further modifications.
130      new_path="$path"
131    fi
132
133    if test "x$new_path" = x; then
134      AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
135      has_space=`$ECHO "$complete" | $GREP " "`
136      if test "x$has_space" != x; then
137        AC_MSG_NOTICE([This might be caused by spaces in the path, which is not allowed.])
138      fi
139      AC_MSG_ERROR([Cannot locate the the path of $1])
140    fi
141  fi
142
143  # Now join together the path and the arguments once again
144  if test "x$arguments" != xEOL; then
145    new_complete="$new_path ${arguments% *}"
146  else
147    new_complete="$new_path"
148  fi
149
150  if test "x$complete" != "x$new_complete"; then
151    $1="$new_complete"
152    AC_MSG_NOTICE([Rewriting $1 to "$new_complete"])
153  fi
154])
155
156AC_DEFUN([BASIC_REMOVE_SYMBOLIC_LINKS],
157[
158  if test "x$OPENJDK_BUILD_OS" != xwindows; then
159    # Follow a chain of symbolic links. Use readlink
160    # where it exists, else fall back to horribly
161    # complicated shell code.
162    if test "x$READLINK_TESTED" != yes; then
163      # On MacOSX there is a readlink tool with a different
164      # purpose than the GNU readlink tool. Check the found readlink.
165      ISGNU=`$READLINK --version 2>&1 | $GREP GNU`
166      if test "x$ISGNU" = x; then
167        # A readlink that we do not know how to use.
168        # Are there other non-GNU readlinks out there?
169        READLINK_TESTED=yes
170        READLINK=
171      fi
172    fi
173
174    if test "x$READLINK" != x; then
175      $1=`$READLINK -f [$]$1`
176    else
177      # Save the current directory for restoring afterwards
178      STARTDIR=$PWD
179      COUNTER=0
180      sym_link_dir=`$DIRNAME [$]$1`
181      sym_link_file=`$BASENAME [$]$1`
182      cd $sym_link_dir
183      # Use -P flag to resolve symlinks in directories.
184      cd `$THEPWDCMD -P`
185      sym_link_dir=`$THEPWDCMD -P`
186      # Resolve file symlinks
187      while test $COUNTER -lt 20; do
188        ISLINK=`$LS -l $sym_link_dir/$sym_link_file | $GREP '\->' | $SED -e 's/.*-> \(.*\)/\1/'`
189        if test "x$ISLINK" == x; then
190          # This is not a symbolic link! We are done!
191          break
192        fi
193        # Again resolve directory symlinks since the target of the just found
194        # link could be in a different directory
195        cd `$DIRNAME $ISLINK`
196        sym_link_dir=`$THEPWDCMD -P`
197        sym_link_file=`$BASENAME $ISLINK`
198        let COUNTER=COUNTER+1
199      done
200      cd $STARTDIR
201      $1=$sym_link_dir/$sym_link_file
202    fi
203  fi
204])
205
206# Register a --with argument but mark it as deprecated
207# $1: The name of the with argument to deprecate, not including --with-
208AC_DEFUN([BASIC_DEPRECATED_ARG_WITH],
209[
210  AC_ARG_WITH($1, [AS_HELP_STRING([--with-$1],
211      [Deprecated. Option is kept for backwards compatibility and is ignored])],
212      [AC_MSG_WARN([Option --with-$1 is deprecated and will be ignored.])])
213])
214
215# Register a --enable argument but mark it as deprecated
216# $1: The name of the with argument to deprecate, not including --enable-
217# $2: The name of the argument to deprecate, in shell variable style (i.e. with _ instead of -)
218AC_DEFUN([BASIC_DEPRECATED_ARG_ENABLE],
219[
220  AC_ARG_ENABLE($1, [AS_HELP_STRING([--enable-$1],
221      [Deprecated. Option is kept for backwards compatibility and is ignored])])
222  if test "x$enable_$2" != x; then
223    AC_MSG_WARN([Option --enable-$1 is deprecated and will be ignored.])
224  fi
225])
226
227AC_DEFUN_ONCE([BASIC_INIT],
228[
229  # Save the original command line. This is passed to us by the wrapper configure script.
230  AC_SUBST(CONFIGURE_COMMAND_LINE)
231  DATE_WHEN_CONFIGURED=`LANG=C date`
232  AC_SUBST(DATE_WHEN_CONFIGURED)
233  AC_MSG_NOTICE([Configuration created at $DATE_WHEN_CONFIGURED.])
234  AC_MSG_NOTICE([configure script generated at timestamp $DATE_WHEN_GENERATED.])
235])
236
237# Test that variable $1 denoting a program is not empty. If empty, exit with an error.
238# $1: variable to check
239AC_DEFUN([BASIC_CHECK_NONEMPTY],
240[
241  if test "x[$]$1" = x; then
242    AC_MSG_ERROR([Could not find required tool for $1])
243  fi
244])
245
246# Check that there are no unprocessed overridden variables left.
247# If so, they are an incorrect argument and we will exit with an error.
248AC_DEFUN([BASIC_CHECK_LEFTOVER_OVERRIDDEN],
249[
250  if test "x$CONFIGURE_OVERRIDDEN_VARIABLES" != x; then
251    # Replace the separating ! with spaces before presenting for end user.
252    unknown_variables=${CONFIGURE_OVERRIDDEN_VARIABLES//!/ }
253    AC_MSG_WARN([The following variables might be unknown to configure: $unknown_variables])
254  fi
255])
256
257# Setup a tool for the given variable. If correctly specified by the user, 
258# use that value, otherwise search for the tool using the supplied code snippet.
259# $1: variable to set
260# $2: code snippet to call to look for the tool
261AC_DEFUN([BASIC_SETUP_TOOL],
262[
263  # Publish this variable in the help.
264  AC_ARG_VAR($1, [Override default value for $1])
265
266  if test "x[$]$1" = x; then
267    # The variable is not set by user, try to locate tool using the code snippet
268    $2
269  else
270    # The variable is set, but is it from the command line or the environment?
271
272    # Try to remove the string !$1! from our list.
273    try_remove_var=${CONFIGURE_OVERRIDDEN_VARIABLES//!$1!/}
274    if test "x$try_remove_var" = "x$CONFIGURE_OVERRIDDEN_VARIABLES"; then
275      # If it failed, the variable was not from the command line. Ignore it,
276      # but warn the user (except for BASH, which is always set by the calling BASH).
277      if test "x$1" != xBASH; then
278        AC_MSG_WARN([Ignoring value of $1 from the environment. Use command line variables instead.])
279      fi
280      # Try to locate tool using the code snippet
281      $2
282    else
283      # If it succeeded, then it was overridden by the user. We will use it
284      # for the tool.
285
286      # First remove it from the list of overridden variables, so we can test
287      # for unknown variables in the end.
288      CONFIGURE_OVERRIDDEN_VARIABLES="$try_remove_var"
289
290      # Check if the provided tool contains a complete path.
291      tool_specified="[$]$1"
292      tool_basename="${tool_specified##*/}"
293      if test "x$tool_basename" = "x$tool_specified"; then
294        # A command without a complete path is provided, search $PATH.
295        AC_MSG_NOTICE([Will search for user supplied tool $1=$tool_basename])
296        AC_PATH_PROG($1, $tool_basename)
297        if test "x[$]$1" = x; then
298          AC_MSG_ERROR([User supplied tool $tool_basename could not be found])
299        fi
300      else
301        # Otherwise we believe it is a complete path. Use it as it is.
302        AC_MSG_NOTICE([Will use user supplied tool $1=$tool_specified])
303        AC_MSG_CHECKING([for $1])
304        if test ! -x "$tool_specified"; then
305          AC_MSG_RESULT([not found])
306          AC_MSG_ERROR([User supplied tool $1=$tool_specified does not exist or is not executable])
307        fi
308        AC_MSG_RESULT([$tool_specified])
309      fi
310    fi
311  fi
312])
313
314# Call BASIC_SETUP_TOOL with AC_PATH_PROGS to locate the tool
315# $1: variable to set
316# $2: executable name (or list of names) to look for
317AC_DEFUN([BASIC_PATH_PROGS],
318[
319  BASIC_SETUP_TOOL($1, [AC_PATH_PROGS($1, $2)])
320])
321
322# Call BASIC_SETUP_TOOL with AC_CHECK_TOOLS to locate the tool
323# $1: variable to set
324# $2: executable name (or list of names) to look for
325AC_DEFUN([BASIC_CHECK_TOOLS],
326[
327  BASIC_SETUP_TOOL($1, [AC_CHECK_TOOLS($1, $2)])
328])
329
330# Like BASIC_PATH_PROGS but fails if no tool was found.
331# $1: variable to set
332# $2: executable name (or list of names) to look for
333AC_DEFUN([BASIC_REQUIRE_PROGS],
334[
335  BASIC_PATH_PROGS($1, $2)
336  BASIC_CHECK_NONEMPTY($1)
337])
338
339# Like BASIC_SETUP_TOOL but fails if no tool was found.
340# $1: variable to set
341# $2: autoconf macro to call to look for the special tool
342AC_DEFUN([BASIC_REQUIRE_SPECIAL],
343[
344  BASIC_SETUP_TOOL($1, [$2])
345  BASIC_CHECK_NONEMPTY($1)
346])
347
348# Setup the most fundamental tools that relies on not much else to set up,
349# but is used by much of the early bootstrap code.
350AC_DEFUN_ONCE([BASIC_SETUP_FUNDAMENTAL_TOOLS],
351[
352  # Start with tools that do not need have cross compilation support
353  # and can be expected to be found in the default PATH. These tools are
354  # used by configure. Nor are these tools expected to be found in the
355  # devkit from the builddeps server either, since they are
356  # needed to download the devkit.
357
358  # First are all the simple required tools.
359  BASIC_REQUIRE_PROGS(BASENAME, basename)
360  BASIC_REQUIRE_PROGS(BASH, bash)
361  BASIC_REQUIRE_PROGS(CAT, cat)
362  BASIC_REQUIRE_PROGS(CHMOD, chmod)
363  BASIC_REQUIRE_PROGS(CMP, cmp)
364  BASIC_REQUIRE_PROGS(COMM, comm)
365  BASIC_REQUIRE_PROGS(CP, cp)
366  BASIC_REQUIRE_PROGS(CPIO, cpio)
367  BASIC_REQUIRE_PROGS(CUT, cut)
368  BASIC_REQUIRE_PROGS(DATE, date)
369  BASIC_REQUIRE_PROGS(DIFF, [gdiff diff])
370  BASIC_REQUIRE_PROGS(DIRNAME, dirname)
371  BASIC_REQUIRE_PROGS(ECHO, echo)
372  BASIC_REQUIRE_PROGS(EXPR, expr)
373  BASIC_REQUIRE_PROGS(FILE, file)
374  BASIC_REQUIRE_PROGS(FIND, find)
375  BASIC_REQUIRE_PROGS(HEAD, head)
376  BASIC_REQUIRE_PROGS(LN, ln)
377  BASIC_REQUIRE_PROGS(LS, ls)
378  BASIC_REQUIRE_PROGS(MKDIR, mkdir)
379  BASIC_REQUIRE_PROGS(MKTEMP, mktemp)
380  BASIC_REQUIRE_PROGS(MV, mv)
381  BASIC_REQUIRE_PROGS(NAWK, [nawk gawk awk])
382  BASIC_REQUIRE_PROGS(PRINTF, printf)
383  BASIC_REQUIRE_PROGS(RM, rm)
384  BASIC_REQUIRE_PROGS(SH, sh)
385  BASIC_REQUIRE_PROGS(SORT, sort)
386  BASIC_REQUIRE_PROGS(TAIL, tail)
387  BASIC_REQUIRE_PROGS(TAR, tar)
388  BASIC_REQUIRE_PROGS(TEE, tee)
389  BASIC_REQUIRE_PROGS(TOUCH, touch)
390  BASIC_REQUIRE_PROGS(TR, tr)
391  BASIC_REQUIRE_PROGS(UNAME, uname)
392  BASIC_REQUIRE_PROGS(UNIQ, uniq)
393  BASIC_REQUIRE_PROGS(WC, wc)
394  BASIC_REQUIRE_PROGS(WHICH, which)
395  BASIC_REQUIRE_PROGS(XARGS, xargs)
396
397  # Then required tools that require some special treatment.
398  BASIC_REQUIRE_SPECIAL(AWK, [AC_PROG_AWK])
399  BASIC_REQUIRE_SPECIAL(GREP, [AC_PROG_GREP])
400  BASIC_REQUIRE_SPECIAL(EGREP, [AC_PROG_EGREP])
401  BASIC_REQUIRE_SPECIAL(FGREP, [AC_PROG_FGREP])
402  BASIC_REQUIRE_SPECIAL(SED, [AC_PROG_SED])
403
404  # Always force rm.
405  RM="$RM -f"
406
407  # pwd behaves differently on various platforms and some don't support the -L flag.
408  # Always use the bash builtin pwd to get uniform behavior.
409  THEPWDCMD=pwd
410
411  # These are not required on all platforms
412  BASIC_PATH_PROGS(CYGPATH, cygpath)
413  BASIC_PATH_PROGS(READLINK, [greadlink readlink])
414  BASIC_PATH_PROGS(DF, df)
415  BASIC_PATH_PROGS(SETFILE, SetFile)
416])
417
418# Setup basic configuration paths, and platform-specific stuff related to PATHs.
419AC_DEFUN_ONCE([BASIC_SETUP_PATHS],
420[
421  # Save the current directory this script was started from
422  CURDIR="$PWD"
423
424  if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
425    PATH_SEP=";"
426    BASIC_CHECK_PATHS_WINDOWS
427  else
428    PATH_SEP=":"
429  fi
430  AC_SUBST(PATH_SEP)
431
432  # We get the top-level directory from the supporting wrappers.
433  AC_MSG_CHECKING([for top-level directory])
434  AC_MSG_RESULT([$TOPDIR])
435  AC_SUBST(TOPDIR)
436
437  # We can only call BASIC_FIXUP_PATH after BASIC_CHECK_PATHS_WINDOWS.
438  BASIC_FIXUP_PATH(CURDIR)
439  BASIC_FIXUP_PATH(TOPDIR)
440  # SRC_ROOT is a traditional alias for TOPDIR.
441  SRC_ROOT=$TOPDIR
442
443  # Locate the directory of this script.
444  AUTOCONF_DIR=$TOPDIR/common/autoconf
445
446  if test "x$OPENJDK_BUILD_OS" = "xsolaris"; then
447    # Add extra search paths on solaris for utilities like ar and as etc...
448    PATH="$PATH:/usr/ccs/bin:/usr/sfw/bin:/opt/csw/bin"
449  fi
450
451  # You can force the sys-root if the sys-root encoded into the cross compiler tools
452  # is not correct.
453  AC_ARG_WITH(sys-root, [AS_HELP_STRING([--with-sys-root],
454      [pass this sys-root to the compilers and tools (for cross-compiling)])])
455
456  if test "x$with_sys_root" != x; then
457    SYS_ROOT=$with_sys_root
458  else
459    SYS_ROOT=/
460  fi
461  AC_SUBST(SYS_ROOT)
462
463  AC_ARG_WITH([tools-dir], [AS_HELP_STRING([--with-tools-dir],
464      [search this directory for compilers and tools (for cross-compiling)])],
465      [TOOLS_DIR=$with_tools_dir]
466  )
467
468  AC_ARG_WITH([devkit], [AS_HELP_STRING([--with-devkit],
469      [use this directory as base for tools-dir and sys-root (for cross-compiling)])],
470      [
471        if test "x$with_sys_root" != x; then
472          AC_MSG_ERROR([Cannot specify both --with-devkit and --with-sys-root at the same time])
473        fi
474        BASIC_FIXUP_PATH([with_devkit])
475        BASIC_APPEND_TO_PATH([TOOLS_DIR],$with_devkit/bin)
476        if test -d "$with_devkit/$host_alias/libc"; then
477          SYS_ROOT=$with_devkit/$host_alias/libc
478        elif test -d "$with_devkit/$host/sys-root"; then
479          SYS_ROOT=$with_devkit/$host/sys-root
480        fi
481      ])
482])
483
484AC_DEFUN_ONCE([BASIC_SETUP_OUTPUT_DIR],
485[
486
487  AC_ARG_WITH(conf-name, [AS_HELP_STRING([--with-conf-name],
488      [use this as the name of the configuration @<:@generated from important configuration options@:>@])],
489      [ CONF_NAME=${with_conf_name} ])
490
491  # Test from where we are running configure, in or outside of src root.
492  AC_MSG_CHECKING([where to store configuration])
493  if test "x$CURDIR" = "x$SRC_ROOT" || test "x$CURDIR" = "x$SRC_ROOT/common" \
494      || test "x$CURDIR" = "x$SRC_ROOT/common/autoconf" \
495      || test "x$CURDIR" = "x$SRC_ROOT/make" ; then
496    # We are running configure from the src root.
497    # Create a default ./build/target-variant-debuglevel output root.
498    if test "x${CONF_NAME}" = x; then
499      AC_MSG_RESULT([in default location])
500      CONF_NAME="${OPENJDK_TARGET_OS}-${OPENJDK_TARGET_CPU}-${JDK_VARIANT}-${ANDED_JVM_VARIANTS}-${DEBUG_LEVEL}"
501    else
502      AC_MSG_RESULT([in build directory with custom name])
503    fi
504    OUTPUT_ROOT="$SRC_ROOT/build/${CONF_NAME}"
505    $MKDIR -p "$OUTPUT_ROOT"
506    if test ! -d "$OUTPUT_ROOT"; then
507      AC_MSG_ERROR([Could not create build directory $OUTPUT_ROOT])
508    fi
509  else
510    # We are running configure from outside of the src dir.
511    # Then use the current directory as output dir!
512    # If configuration is situated in normal build directory, just use the build
513    # directory name as configuration name, otherwise use the complete path.
514    if test "x${CONF_NAME}" = x; then
515      CONF_NAME=`$ECHO $CURDIR | $SED -e "s!^${SRC_ROOT}/build/!!"`
516    fi
517    OUTPUT_ROOT="$CURDIR"
518    AC_MSG_RESULT([in current directory])
519
520    # WARNING: This might be a bad thing to do. You need to be sure you want to
521    # have a configuration in this directory. Do some sanity checks!
522
523    if test ! -e "$OUTPUT_ROOT/spec.gmk"; then
524      # If we have a spec.gmk, we have run here before and we are OK. Otherwise, check for
525      # other files
526      files_present=`$LS $OUTPUT_ROOT`
527      # Configure has already touched config.log and confdefs.h in the current dir when this check
528      # is performed.
529      filtered_files=`$ECHO "$files_present" | $SED -e 's/config.log//g' -e 's/confdefs.h//g' -e 's/ //g' \
530      | $TR -d '\n'`
531      if test "x$filtered_files" != x; then
532        AC_MSG_NOTICE([Current directory is $CURDIR.])
533        AC_MSG_NOTICE([Since this is not the source root, configure will output the configuration here])
534        AC_MSG_NOTICE([(as opposed to creating a configuration in <src_root>/build/<conf-name>).])
535        AC_MSG_NOTICE([However, this directory is not empty. This is not allowed, since it could])
536        AC_MSG_NOTICE([seriously mess up just about everything.])
537        AC_MSG_NOTICE([Try 'cd $SRC_ROOT' and restart configure])
538        AC_MSG_NOTICE([(or create a new empty directory and cd to it).])
539        AC_MSG_ERROR([Will not continue creating configuration in $CURDIR])
540      fi
541    fi
542  fi
543  AC_MSG_CHECKING([what configuration name to use])
544  AC_MSG_RESULT([$CONF_NAME])
545
546  BASIC_FIXUP_PATH(OUTPUT_ROOT)
547
548  AC_SUBST(SPEC, $OUTPUT_ROOT/spec.gmk)
549  AC_SUBST(CONF_NAME, $CONF_NAME)
550  AC_SUBST(OUTPUT_ROOT, $OUTPUT_ROOT)
551
552  # Most of the probed defines are put into config.h
553  AC_CONFIG_HEADERS([$OUTPUT_ROOT/config.h:$AUTOCONF_DIR/config.h.in])
554  # The spec.gmk file contains all variables for the make system.
555  AC_CONFIG_FILES([$OUTPUT_ROOT/spec.gmk:$AUTOCONF_DIR/spec.gmk.in])
556  # The hotspot-spec.gmk file contains legacy variables for the hotspot make system.
557  AC_CONFIG_FILES([$OUTPUT_ROOT/hotspot-spec.gmk:$AUTOCONF_DIR/hotspot-spec.gmk.in])
558  # The bootcycle-spec.gmk file contains support for boot cycle builds.
559  AC_CONFIG_FILES([$OUTPUT_ROOT/bootcycle-spec.gmk:$AUTOCONF_DIR/bootcycle-spec.gmk.in])
560  # The compare.sh is used to compare the build output to other builds.
561  AC_CONFIG_FILES([$OUTPUT_ROOT/compare.sh:$AUTOCONF_DIR/compare.sh.in])
562  # Spec.sh is currently used by compare-objects.sh
563  AC_CONFIG_FILES([$OUTPUT_ROOT/spec.sh:$AUTOCONF_DIR/spec.sh.in])
564  # The generated Makefile knows where the spec.gmk is and where the source is.
565  # You can run make from the OUTPUT_ROOT, or from the top-level Makefile
566  # which will look for generated configurations
567  AC_CONFIG_FILES([$OUTPUT_ROOT/Makefile:$AUTOCONF_DIR/Makefile.in])
568])
569
570AC_DEFUN_ONCE([BASIC_SETUP_LOGGING],
571[
572  # Setup default logging of stdout and stderr to build.log in the output root.
573  BUILD_LOG='$(OUTPUT_ROOT)/build.log'
574  BUILD_LOG_PREVIOUS='$(OUTPUT_ROOT)/build.log.old'
575  BUILD_LOG_WRAPPER='$(BASH) $(SRC_ROOT)/common/bin/logger.sh $(BUILD_LOG)'
576  AC_SUBST(BUILD_LOG)
577  AC_SUBST(BUILD_LOG_PREVIOUS)
578  AC_SUBST(BUILD_LOG_WRAPPER)
579])
580
581
582#%%% Simple tools %%%
583
584# Check if we have found a usable version of make
585# $1: the path to a potential make binary (or empty)
586# $2: the description on how we found this
587AC_DEFUN([BASIC_CHECK_MAKE_VERSION],
588[
589  MAKE_CANDIDATE="$1"
590  DESCRIPTION="$2"
591  if test "x$MAKE_CANDIDATE" != x; then
592    AC_MSG_NOTICE([Testing potential make at $MAKE_CANDIDATE, found using $DESCRIPTION])
593    MAKE_VERSION_STRING=`$MAKE_CANDIDATE --version | $HEAD -n 1`
594    IS_GNU_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP 'GNU Make'`
595    if test "x$IS_GNU_MAKE" = x; then
596      AC_MSG_NOTICE([Found potential make at $MAKE_CANDIDATE, however, this is not GNU Make. Ignoring.])
597    else
598      IS_MODERN_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP -e '3\.8[[12]]' -e '4\.'`
599      if test "x$IS_MODERN_MAKE" = x; then
600        AC_MSG_NOTICE([Found GNU make at $MAKE_CANDIDATE, however this is not version 3.81 or later. (it is: $MAKE_VERSION_STRING). Ignoring.])
601      else
602        if test "x$OPENJDK_BUILD_OS" = "xwindows"; then
603          if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
604            MAKE_EXPECTED_ENV='cygwin'
605          elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
606            MAKE_EXPECTED_ENV='msys'
607          else
608            AC_MSG_ERROR([Unknown Windows environment])
609          fi
610          MAKE_BUILT_FOR=`$MAKE_CANDIDATE --version | $GREP -i 'built for'`
611          IS_MAKE_CORRECT_ENV=`$ECHO $MAKE_BUILT_FOR | $GREP $MAKE_EXPECTED_ENV`
612        else
613          # Not relevant for non-Windows
614          IS_MAKE_CORRECT_ENV=true
615        fi
616        if test "x$IS_MAKE_CORRECT_ENV" = x; then
617          AC_MSG_NOTICE([Found GNU make version $MAKE_VERSION_STRING at $MAKE_CANDIDATE, but it is not for $MAKE_EXPECTED_ENV (it says: $MAKE_BUILT_FOR). Ignoring.])
618        else
619          FOUND_MAKE=$MAKE_CANDIDATE
620          BASIC_FIXUP_EXECUTABLE(FOUND_MAKE)
621        fi
622      fi
623    fi
624  fi
625])
626
627# Goes looking for a usable version of GNU make.
628AC_DEFUN([BASIC_CHECK_GNU_MAKE],
629[
630  # We need to find a recent version of GNU make. Especially on Solaris, this can be tricky.
631  if test "x$MAKE" != x; then
632    # User has supplied a make, test it.
633    if test ! -f "$MAKE"; then
634      AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not found.])
635    fi
636    BASIC_CHECK_MAKE_VERSION("$MAKE", [user supplied MAKE=$MAKE])
637    if test "x$FOUND_MAKE" = x; then
638      AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not GNU make 3.81 or newer.])
639    fi
640  else
641    # Try our hardest to locate a correct version of GNU make
642    AC_PATH_PROGS(CHECK_GMAKE, gmake)
643    BASIC_CHECK_MAKE_VERSION("$CHECK_GMAKE", [gmake in PATH])
644
645    if test "x$FOUND_MAKE" = x; then
646      AC_PATH_PROGS(CHECK_MAKE, make)
647      BASIC_CHECK_MAKE_VERSION("$CHECK_MAKE", [make in PATH])
648    fi
649
650    if test "x$FOUND_MAKE" = x; then
651      if test "x$TOOLS_DIR" != x; then
652        # We have a tools-dir, check that as well before giving up.
653        OLD_PATH=$PATH
654        PATH=$TOOLS_DIR:$PATH
655        AC_PATH_PROGS(CHECK_TOOLSDIR_GMAKE, gmake)
656        BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_GMAKE", [gmake in tools-dir])
657        if test "x$FOUND_MAKE" = x; then
658          AC_PATH_PROGS(CHECK_TOOLSDIR_MAKE, make)
659          BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_MAKE", [make in tools-dir])
660        fi
661        PATH=$OLD_PATH
662      fi
663    fi
664
665    if test "x$FOUND_MAKE" = x; then
666      AC_MSG_ERROR([Cannot find GNU make 3.81 or newer! Please put it in the path, or add e.g. MAKE=/opt/gmake3.81/make as argument to configure.])
667    fi
668  fi
669
670  MAKE=$FOUND_MAKE
671  AC_SUBST(MAKE)
672  AC_MSG_NOTICE([Using GNU make 3.81 (or later) at $FOUND_MAKE (version: $MAKE_VERSION_STRING)])
673])
674
675AC_DEFUN([BASIC_CHECK_FIND_DELETE],
676[
677  # Test if find supports -delete
678  AC_MSG_CHECKING([if find supports -delete])
679  FIND_DELETE="-delete"
680
681  DELETEDIR=`$MKTEMP -d tmp.XXXXXXXXXX` || (echo Could not create temporary directory!; exit $?)
682
683  echo Hejsan > $DELETEDIR/TestIfFindSupportsDelete
684
685  TEST_DELETE=`$FIND "$DELETEDIR" -name TestIfFindSupportsDelete $FIND_DELETE 2>&1`
686  if test -f $DELETEDIR/TestIfFindSupportsDelete; then
687    # No, it does not.
688    rm $DELETEDIR/TestIfFindSupportsDelete
689    FIND_DELETE="-exec rm \{\} \+"
690    AC_MSG_RESULT([no])
691  else
692    AC_MSG_RESULT([yes])
693  fi
694  rmdir $DELETEDIR
695  AC_SUBST(FIND_DELETE)
696])
697
698AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
699[
700  BASIC_CHECK_GNU_MAKE
701
702  BASIC_CHECK_FIND_DELETE
703
704  # These tools might not be installed by default,
705  # need hint on how to install them.
706  BASIC_REQUIRE_PROGS(UNZIP, unzip)
707  BASIC_REQUIRE_PROGS(ZIP, zip)
708
709  # Non-required basic tools
710
711  BASIC_PATH_PROGS(LDD, ldd)
712  if test "x$LDD" = "x"; then
713    # List shared lib dependencies is used for
714    # debug output and checking for forbidden dependencies.
715    # We can build without it.
716    LDD="true"
717  fi
718  BASIC_PATH_PROGS(OTOOL, otool)
719  if test "x$OTOOL" = "x"; then
720    OTOOL="true"
721  fi
722  BASIC_PATH_PROGS(READELF, [greadelf readelf])
723  BASIC_PATH_PROGS(HG, hg)
724  BASIC_PATH_PROGS(STAT, stat)
725  BASIC_PATH_PROGS(TIME, time)
726  # Check if it's GNU time
727  IS_GNU_TIME=`$TIME --version 2>&1 | $GREP 'GNU time'`
728  if test "x$IS_GNU_TIME" != x; then
729    IS_GNU_TIME=yes
730  else
731    IS_GNU_TIME=no
732  fi
733  AC_SUBST(IS_GNU_TIME)
734
735  if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
736    BASIC_REQUIRE_PROGS(COMM, comm)
737  fi
738
739  if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
740    BASIC_REQUIRE_PROGS(DSYMUTIL, dsymutil)
741    BASIC_REQUIRE_PROGS(XATTR, xattr)
742    BASIC_PATH_PROGS(CODESIGN, codesign)
743    if test "x$CODESIGN" != "x"; then
744      # Verify that the openjdk_codesign certificate is present
745      AC_MSG_CHECKING([if openjdk_codesign certificate is present])
746      rm -f codesign-testfile
747      touch codesign-testfile
748      codesign -s openjdk_codesign codesign-testfile 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD || CODESIGN=
749      rm -f codesign-testfile
750      if test "x$CODESIGN" = x; then
751        AC_MSG_RESULT([no])
752      else
753        AC_MSG_RESULT([yes])
754      fi
755    fi
756  fi
757])
758
759# Check if build directory is on local disk. If not possible to determine,
760# we prefer to claim it's local.
761# Argument 1: directory to test
762# Argument 2: what to do if it is on local disk
763# Argument 3: what to do otherwise (remote disk or failure)
764AC_DEFUN([BASIC_CHECK_DIR_ON_LOCAL_DISK],
765[
766  # df -l lists only local disks; if the given directory is not found then
767  # a non-zero exit code is given
768  if test "x$DF" = x; then
769    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
770      # msys does not have df; use Windows "net use" instead.
771      IS_NETWORK_DISK=`net use | grep \`pwd -W | cut -d ":" -f 1 | tr a-z A-Z\`:`
772      if test "x$IS_NETWORK_DISK" = x; then
773        $2
774      else
775        $3
776      fi
777    else
778      # No df here, say it's local
779      $2
780    fi
781  else
782    if $DF -l $1 > /dev/null 2>&1; then
783      $2
784    else
785      $3
786    fi
787  fi
788])
789
790# Check that source files have basic read permissions set. This might
791# not be the case in cygwin in certain conditions.
792AC_DEFUN_ONCE([BASIC_CHECK_SRC_PERMS],
793[
794  if test x"$OPENJDK_BUILD_OS" = xwindows; then
795    file_to_test="$SRC_ROOT/LICENSE"
796    if test `$STAT -c '%a' "$file_to_test"` -lt 400; then
797      AC_MSG_ERROR([Bad file permissions on src files. This is usually caused by cloning the repositories with a non cygwin hg in a directory not created in cygwin.])
798    fi
799  fi
800])
801
802AC_DEFUN_ONCE([BASIC_TEST_USABILITY_ISSUES],
803[
804  # Did user specify any unknown variables?
805  BASIC_CHECK_LEFTOVER_OVERRIDDEN
806
807  AC_MSG_CHECKING([if build directory is on local disk])
808  BASIC_CHECK_DIR_ON_LOCAL_DISK($OUTPUT_ROOT,
809      [OUTPUT_DIR_IS_LOCAL="yes"],
810      [OUTPUT_DIR_IS_LOCAL="no"])
811  AC_MSG_RESULT($OUTPUT_DIR_IS_LOCAL)
812
813  BASIC_CHECK_SRC_PERMS
814
815  # Check if the user has any old-style ALT_ variables set.
816  FOUND_ALT_VARIABLES=`env | grep ^ALT_`
817
818  # Before generating output files, test if they exist. If they do, this is a reconfigure.
819  # Since we can't properly handle the dependencies for this, warn the user about the situation
820  if test -e $OUTPUT_ROOT/spec.gmk; then
821    IS_RECONFIGURE=yes
822  else
823    IS_RECONFIGURE=no
824  fi
825])
826