basics.m4 revision 521:754f91d22e1c
1#
2# Copyright (c) 2011, 2012, 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
26AC_DEFUN([ADD_JVM_ARG_IF_OK],
27[
28    # Test if $1 is a valid argument to $3 (often is $JAVA passed as $3)
29    # If so, then append $1 to $2
30    FOUND_WARN=`$3 $1 -version 2>&1 | grep -i warn`
31    FOUND_VERSION=`$3 $1 -version 2>&1 | grep " version \""`
32    if test "x$FOUND_VERSION" != x && test "x$FOUND_WARN" = x; then
33        $2="[$]$2 $1"
34    fi
35])
36
37# This will make sure the given variable points to a full and proper
38# path. This means:
39# 1) There will be no spaces in the path. On posix platforms,
40#    spaces in the path will result in an error. On Windows,
41#    the path will be rewritten using short-style to be space-free.
42# 2) The path will be absolute, and it will be in unix-style (on
43#     cygwin).
44# $1: The name of the variable to fix
45AC_DEFUN([BASIC_FIXUP_PATH],
46[
47  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
48    BASIC_FIXUP_PATH_CYGWIN($1)
49  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
50    BASIC_FIXUP_PATH_MSYS($1)
51  else
52    # We're on a posix platform. Hooray! :)
53    path="[$]$1"
54    
55    if test ! -f "$path" && test ! -d "$path"; then
56      AC_MSG_ERROR([The path of $1, which resolves as "$path", is not found.])
57    fi
58
59    has_space=`$ECHO "$path" | $GREP " "`
60    if test "x$has_space" != x; then
61      AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.])
62      AC_MSG_ERROR([Spaces are not allowed in this path.])
63    fi
64  fi
65])
66
67# This will make sure the given variable points to a executable
68# with a full and proper path. This means:
69# 1) There will be no spaces in the path. On posix platforms,
70#    spaces in the path will result in an error. On Windows,
71#    the path will be rewritten using short-style to be space-free.
72# 2) The path will be absolute, and it will be in unix-style (on
73#     cygwin).
74# Any arguments given to the executable is preserved.
75# If the input variable does not have a directory specification, then
76# it need to be in the PATH.
77# $1: The name of the variable to fix
78AC_DEFUN([BASIC_FIXUP_EXECUTABLE],
79[
80  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
81    BASIC_FIXUP_EXECUTABLE_CYGWIN($1)
82  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
83    BASIC_FIXUP_EXECUTABLE_MSYS($1)
84  else
85    # We're on a posix platform. Hooray! :)
86    # First separate the path from the arguments. This will split at the first
87    # space.
88    complete="[$]$1"
89    path="${complete%% *}"
90    tmp="$complete EOL"
91    arguments="${tmp#* }"
92
93    new_path=`$WHICH $path 2> /dev/null`
94    if test "x$new_path" = x; then
95      is_absolute_path=`$ECHO "$path" | $GREP ^/`
96      if test "x$is_absolute_path" != x; then
97        AC_MSG_NOTICE([Resolving $1 (as $path) with 'which' failed, using $path directly.])
98        new_path="$path"
99      else
100        AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
101        has_space=`$ECHO "$complete" | $GREP " "`
102        if test "x$has_space" != x; then
103          AC_MSG_NOTICE([This might be caused by spaces in the path, which is not allowed.])
104        fi
105        AC_MSG_ERROR([Cannot locate the the path of $1])
106      fi
107    fi
108  fi
109
110  # Now join together the path and the arguments once again
111  if test "x$arguments" != xEOL; then
112      new_complete="$new_path ${arguments% *}"
113  else
114      new_complete="$new_path"
115  fi
116
117  if test "x$complete" != "x$new_complete"; then
118    $1="$new_complete"
119    AC_MSG_NOTICE([Rewriting $1 to "$new_complete"])
120  fi
121])
122
123AC_DEFUN([BASIC_REMOVE_SYMBOLIC_LINKS],
124[
125    if test "x$OPENJDK_BUILD_OS" != xwindows; then
126        # Follow a chain of symbolic links. Use readlink
127        # where it exists, else fall back to horribly
128        # complicated shell code.
129        if test "x$READLINK_TESTED" != yes; then
130            # On MacOSX there is a readlink tool with a different
131            # purpose than the GNU readlink tool. Check the found readlink.
132            ISGNU=`$READLINK --version 2>&1 | $GREP GNU`
133            if test "x$ISGNU" = x; then
134                 # A readlink that we do not know how to use.
135                 # Are there other non-GNU readlinks out there?
136                 READLINK_TESTED=yes
137                 READLINK=
138            fi
139        fi
140
141        if test "x$READLINK" != x; then
142            $1=`$READLINK -f [$]$1`
143        else
144            # Save the current directory for restoring afterwards
145            STARTDIR=$PWD
146            COUNTER=0
147            sym_link_dir=`$DIRNAME [$]$1`
148            sym_link_file=`$BASENAME [$]$1`
149            # Use the system pwd and not the shell builtin to resolve directory symlinks
150            cd $sym_link_dir
151            cd `$THEPWDCMD`
152            sym_link_dir=`$THEPWDCMD`
153            # Resolve file symlinks
154            while test $COUNTER -lt 20; do
155                ISLINK=`$LS -l $sym_link_dir/$sym_link_file | $GREP '\->' | $SED -e 's/.*-> \(.*\)/\1/'`
156                if test "x$ISLINK" == x; then
157                    # This is not a symbolic link! We are done!
158                    break
159                fi
160                # Again resolve directory symlinks since the target of the just found
161                # link could be in a different directory
162                cd `$DIRNAME $ISLINK`
163                sym_link_dir=`$THEPWDCMD`
164                sym_link_file=`$BASENAME $ISLINK`
165                let COUNTER=COUNTER+1
166            done
167            cd $STARTDIR
168            $1=$sym_link_dir/$sym_link_file
169        fi
170    fi
171])
172
173AC_DEFUN_ONCE([BASIC_INIT],
174[
175# Save the original command line. This is passed to us by the wrapper configure script.
176AC_SUBST(CONFIGURE_COMMAND_LINE)
177DATE_WHEN_CONFIGURED=`LANG=C date`
178AC_SUBST(DATE_WHEN_CONFIGURED)
179AC_MSG_NOTICE([Configuration created at $DATE_WHEN_CONFIGURED.])
180AC_MSG_NOTICE([configure script generated at timestamp $DATE_WHEN_GENERATED.])
181])
182
183# Test that variable $1 denoting a program is not empty. If empty, exit with an error.
184# $1: variable to check
185# $2: executable name to print in warning (optional)
186AC_DEFUN([BASIC_CHECK_NONEMPTY],
187[
188    if test "x[$]$1" = x; then
189        if test "x$2" = x; then
190          PROG_NAME=translit($1,A-Z,a-z)
191        else
192          PROG_NAME=$2
193        fi
194        AC_MSG_NOTICE([Could not find $PROG_NAME!])
195        AC_MSG_ERROR([Cannot continue])
196    fi
197])
198
199# Does AC_PATH_PROG followed by BASIC_CHECK_NONEMPTY.
200# Arguments as AC_PATH_PROG:
201# $1: variable to set
202# $2: executable name to look for
203AC_DEFUN([BASIC_REQUIRE_PROG],
204[
205    AC_PATH_PROGS($1, $2)
206    BASIC_CHECK_NONEMPTY($1, $2)
207])
208
209# Setup the most fundamental tools that relies on not much else to set up,
210# but is used by much of the early bootstrap code.
211AC_DEFUN_ONCE([BASIC_SETUP_FUNDAMENTAL_TOOLS],
212[
213
214# Start with tools that do not need have cross compilation support
215# and can be expected to be found in the default PATH. These tools are
216# used by configure. Nor are these tools expected to be found in the
217# devkit from the builddeps server either, since they are
218# needed to download the devkit.
219
220# First are all the simple required tools.
221BASIC_REQUIRE_PROG(BASENAME, basename)
222BASIC_REQUIRE_PROG(BASH, bash)
223BASIC_REQUIRE_PROG(CAT, cat)
224BASIC_REQUIRE_PROG(CHMOD, chmod)
225BASIC_REQUIRE_PROG(CMP, cmp)
226BASIC_REQUIRE_PROG(CP, cp)
227BASIC_REQUIRE_PROG(CUT, cut)
228BASIC_REQUIRE_PROG(DATE, date)
229BASIC_REQUIRE_PROG(DIFF, [gdiff diff])
230BASIC_REQUIRE_PROG(DIRNAME, dirname)
231BASIC_REQUIRE_PROG(ECHO, echo)
232BASIC_REQUIRE_PROG(EXPR, expr)
233BASIC_REQUIRE_PROG(FILE, file)
234BASIC_REQUIRE_PROG(FIND, find)
235BASIC_REQUIRE_PROG(HEAD, head)
236BASIC_REQUIRE_PROG(LN, ln)
237BASIC_REQUIRE_PROG(LS, ls)
238BASIC_REQUIRE_PROG(MKDIR, mkdir)
239BASIC_REQUIRE_PROG(MKTEMP, mktemp)
240BASIC_REQUIRE_PROG(MV, mv)
241BASIC_REQUIRE_PROG(PRINTF, printf)
242BASIC_REQUIRE_PROG(THEPWDCMD, pwd)
243BASIC_REQUIRE_PROG(RM, rm)
244BASIC_REQUIRE_PROG(SH, sh)
245BASIC_REQUIRE_PROG(SORT, sort)
246BASIC_REQUIRE_PROG(TAIL, tail)
247BASIC_REQUIRE_PROG(TAR, tar)
248BASIC_REQUIRE_PROG(TEE, tee)
249BASIC_REQUIRE_PROG(TOUCH, touch)
250BASIC_REQUIRE_PROG(TR, tr)
251BASIC_REQUIRE_PROG(UNAME, uname)
252BASIC_REQUIRE_PROG(UNIQ, uniq)
253BASIC_REQUIRE_PROG(WC, wc)
254BASIC_REQUIRE_PROG(WHICH, which)
255BASIC_REQUIRE_PROG(XARGS, xargs)
256
257# Then required tools that require some special treatment.
258AC_PROG_AWK
259BASIC_CHECK_NONEMPTY(AWK)
260AC_PROG_GREP
261BASIC_CHECK_NONEMPTY(GREP)
262AC_PROG_EGREP
263BASIC_CHECK_NONEMPTY(EGREP)
264AC_PROG_FGREP
265BASIC_CHECK_NONEMPTY(FGREP)
266AC_PROG_SED
267BASIC_CHECK_NONEMPTY(SED)
268
269AC_PATH_PROGS(NAWK, [nawk gawk awk])
270BASIC_CHECK_NONEMPTY(NAWK)
271
272# Always force rm.
273RM="$RM -f"
274
275# These are not required on all platforms
276AC_PATH_PROG(CYGPATH, cygpath)
277AC_PATH_PROG(READLINK, readlink)
278AC_PATH_PROG(DF, df)
279AC_PATH_PROG(SETFILE, SetFile)
280])
281
282# Setup basic configuration paths, and platform-specific stuff related to PATHs.
283AC_DEFUN_ONCE([BASIC_SETUP_PATHS],
284[
285# Locate the directory of this script.
286SCRIPT="[$]0"
287BASIC_REMOVE_SYMBOLIC_LINKS(SCRIPT)
288AUTOCONF_DIR=`cd \`$DIRNAME $SCRIPT\`; $THEPWDCMD`
289
290# Where is the source? It is located two levels above the configure script.
291CURDIR="$PWD"
292cd "$AUTOCONF_DIR/../.."
293SRC_ROOT="`$THEPWDCMD`"
294
295if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
296  PATH_SEP=";"
297  BASIC_CHECK_PATHS_WINDOWS
298else
299  PATH_SEP=":"
300fi
301
302AC_SUBST(SRC_ROOT)
303AC_SUBST(PATH_SEP)
304cd "$CURDIR"
305
306BASIC_FIXUP_PATH(SRC_ROOT)
307BASIC_FIXUP_PATH(CURDIR)
308
309if test "x$OPENJDK_BUILD_OS" = "xsolaris"; then
310    # Add extra search paths on solaris for utilities like ar and as etc...
311    PATH="$PATH:/usr/ccs/bin:/usr/sfw/bin:/opt/csw/bin"
312fi
313
314# You can force the sys-root if the sys-root encoded into the cross compiler tools
315# is not correct.
316AC_ARG_WITH(sys-root, [AS_HELP_STRING([--with-sys-root],
317  [pass this sys-root to the compilers and tools (for cross-compiling)])])
318
319if test "x$with_sys_root" != x; then
320  SYS_ROOT=$with_sys_root
321else
322  SYS_ROOT=/
323fi
324AC_SUBST(SYS_ROOT)
325
326AC_ARG_WITH([tools-dir], [AS_HELP_STRING([--with-tools-dir],
327  [search this directory for compilers and tools (for cross-compiling)])], [TOOLS_DIR=$with_tools_dir])
328
329AC_ARG_WITH([devkit], [AS_HELP_STRING([--with-devkit],
330  [use this directory as base for tools-dir and sys-root (for cross-compiling)])],
331  [
332    if test "x$with_sys_root" != x; then
333      AC_MSG_ERROR([Cannot specify both --with-devkit and --with-sys-root at the same time])
334    fi
335    if test "x$with_tools_dir" != x; then
336      AC_MSG_ERROR([Cannot specify both --with-devkit and --with-tools-dir at the same time])
337    fi
338    TOOLS_DIR=$with_devkit/bin
339    SYS_ROOT=$with_devkit/$host_alias/libc
340  ])
341
342])
343
344AC_DEFUN_ONCE([BASIC_SETUP_OUTPUT_DIR],
345[
346
347AC_ARG_WITH(conf-name, [AS_HELP_STRING([--with-conf-name],
348	[use this as the name of the configuration @<:@generated from important configuration options@:>@])],
349        [ CONF_NAME=${with_conf_name} ])
350
351# Test from where we are running configure, in or outside of src root.
352# To enable comparison of directories, CURDIR needs to be symlink free
353# just like SRC_ROOT already is
354NOSYM_CURDIR="$CURDIR"
355BASIC_REMOVE_SYMBOLIC_LINKS(NOSYM_CURDIR)
356if test "x$NOSYM_CURDIR" = "x$SRC_ROOT" || test "x$NOSYM_CURDIR" = "x$SRC_ROOT/common" \
357        || test "x$NOSYM_CURDIR" = "x$SRC_ROOT/common/autoconf" \
358        || test "x$NOSYM_CURDIR" = "x$SRC_ROOT/common/makefiles" ; then
359    # We are running configure from the src root.
360    # Create a default ./build/target-variant-debuglevel output root.
361    if test "x${CONF_NAME}" = x; then
362        CONF_NAME="${OPENJDK_TARGET_OS}-${OPENJDK_TARGET_CPU}-${JDK_VARIANT}-${ANDED_JVM_VARIANTS}-${DEBUG_LEVEL}"
363    fi
364    OUTPUT_ROOT="$SRC_ROOT/build/${CONF_NAME}"
365    $MKDIR -p "$OUTPUT_ROOT"
366    if test ! -d "$OUTPUT_ROOT"; then
367        AC_MSG_ERROR([Could not create build directory $OUTPUT_ROOT])
368    fi
369else
370    # We are running configure from outside of the src dir.
371    # Then use the current directory as output dir!
372    # If configuration is situated in normal build directory, just use the build
373    # directory name as configuration name, otherwise use the complete path.
374    if test "x${CONF_NAME}" = x; then
375        CONF_NAME=`$ECHO $CURDIR | $SED -e "s!^${SRC_ROOT}/build/!!"`
376    fi
377    OUTPUT_ROOT="$CURDIR"
378
379    # WARNING: This might be a bad thing to do. You need to be sure you want to
380    # have a configuration in this directory. Do some sanity checks!
381
382    if test ! -e "$OUTPUT_ROOT/spec.gmk"; then
383      # If we have a spec.gmk, we have run here before and we are OK. Otherwise, check for
384      # other files
385      files_present=`$LS $OUTPUT_ROOT`
386      # Configure has already touched config.log and confdefs.h in the current dir when this check 
387      # is performed.
388      filtered_files=`$ECHO "$files_present" | $SED -e 's/config.log//g' -e 's/confdefs.h//g' -e 's/ //g' \
389                                             | $TR -d '\n'`
390      if test "x$filtered_files" != x; then
391        AC_MSG_NOTICE([Current directory is $CURDIR.])
392        AC_MSG_NOTICE([Since this is not the source root, configure will output the configuration here])
393        AC_MSG_NOTICE([(as opposed to creating a configuration in <src_root>/build/<conf-name>).])
394        AC_MSG_NOTICE([However, this directory is not empty. This is not allowed, since it could])
395        AC_MSG_NOTICE([seriously mess up just about everything.])
396        AC_MSG_NOTICE([Try 'cd $SRC_ROOT' and restart configure])
397        AC_MSG_NOTICE([(or create a new empty directory and cd to it).])
398        AC_MSG_ERROR([Will not continue creating configuration in $CURDIR])
399      fi
400    fi
401fi
402AC_MSG_CHECKING([what configuration name to use])
403AC_MSG_RESULT([$CONF_NAME])
404
405BASIC_FIXUP_PATH(OUTPUT_ROOT)
406
407AC_SUBST(SPEC, $OUTPUT_ROOT/spec.gmk)
408AC_SUBST(CONF_NAME, $CONF_NAME)
409AC_SUBST(OUTPUT_ROOT, $OUTPUT_ROOT)
410
411# Most of the probed defines are put into config.h
412AC_CONFIG_HEADERS([$OUTPUT_ROOT/config.h:$AUTOCONF_DIR/config.h.in])
413# The spec.gmk file contains all variables for the make system.
414AC_CONFIG_FILES([$OUTPUT_ROOT/spec.gmk:$AUTOCONF_DIR/spec.gmk.in])
415# The hotspot-spec.gmk file contains legacy variables for the hotspot make system.
416AC_CONFIG_FILES([$OUTPUT_ROOT/hotspot-spec.gmk:$AUTOCONF_DIR/hotspot-spec.gmk.in])
417# The bootcycle-spec.gmk file contains support for boot cycle builds.
418AC_CONFIG_FILES([$OUTPUT_ROOT/bootcycle-spec.gmk:$AUTOCONF_DIR/bootcycle-spec.gmk.in])
419# The compare.sh is used to compare the build output to other builds.
420AC_CONFIG_FILES([$OUTPUT_ROOT/compare.sh:$AUTOCONF_DIR/compare.sh.in])
421# Spec.sh is currently used by compare-objects.sh
422AC_CONFIG_FILES([$OUTPUT_ROOT/spec.sh:$AUTOCONF_DIR/spec.sh.in])
423# The generated Makefile knows where the spec.gmk is and where the source is.
424# You can run make from the OUTPUT_ROOT, or from the top-level Makefile
425# which will look for generated configurations
426AC_CONFIG_FILES([$OUTPUT_ROOT/Makefile:$AUTOCONF_DIR/Makefile.in])
427
428# Save the arguments given to us
429echo "$CONFIGURE_COMMAND_LINE" > $OUTPUT_ROOT/configure-arguments
430])
431
432AC_DEFUN_ONCE([BASIC_SETUP_LOGGING],
433[
434# Setup default logging of stdout and stderr to build.log in the output root.
435BUILD_LOG='$(OUTPUT_ROOT)/build.log'
436BUILD_LOG_PREVIOUS='$(OUTPUT_ROOT)/build.log.old'
437BUILD_LOG_WRAPPER='$(BASH) $(SRC_ROOT)/common/bin/logger.sh $(BUILD_LOG)'
438AC_SUBST(BUILD_LOG)
439AC_SUBST(BUILD_LOG_PREVIOUS)
440AC_SUBST(BUILD_LOG_WRAPPER)
441])
442
443
444#%%% Simple tools %%%
445
446# Check if we have found a usable version of make
447# $1: the path to a potential make binary (or empty)
448# $2: the description on how we found this
449AC_DEFUN([BASIC_CHECK_MAKE_VERSION],
450[
451  MAKE_CANDIDATE="$1"
452  DESCRIPTION="$2"
453  if test "x$MAKE_CANDIDATE" != x; then
454    AC_MSG_NOTICE([Testing potential make at $MAKE_CANDIDATE, found using $DESCRIPTION])
455    MAKE_VERSION_STRING=`$MAKE_CANDIDATE --version | $HEAD -n 1`
456    IS_GNU_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP 'GNU Make'`
457    if test "x$IS_GNU_MAKE" = x; then
458      AC_MSG_NOTICE([Found potential make at $MAKE_CANDIDATE, however, this is not GNU Make. Ignoring.])
459    else
460      IS_MODERN_MAKE=`$ECHO $MAKE_VERSION_STRING | $GREP '3.8[[12346789]]'`
461      if test "x$IS_MODERN_MAKE" = x; then
462        AC_MSG_NOTICE([Found GNU make at $MAKE_CANDIDATE, however this is not version 3.81 or later. (it is: $MAKE_VERSION_STRING). Ignoring.])
463      else
464        if test "x$OPENJDK_BUILD_OS" = "xwindows"; then
465          if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
466            MAKE_EXPECTED_ENV='cygwin'
467          elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
468            MAKE_EXPECTED_ENV='msys'
469          else
470            AC_MSG_ERROR([Unknown Windows environment])
471          fi
472          MAKE_BUILT_FOR=`$MAKE_CANDIDATE --version | $GREP -i 'built for'`
473          IS_MAKE_CORRECT_ENV=`$ECHO $MAKE_BUILT_FOR | $GREP $MAKE_EXPECTED_ENV`
474        else
475          # Not relevant for non-Windows
476          IS_MAKE_CORRECT_ENV=true
477        fi
478        if test "x$IS_MAKE_CORRECT_ENV" = x; then
479          AC_MSG_NOTICE([Found GNU make version $MAKE_VERSION_STRING at $MAKE_CANDIDATE, but it is not for $MAKE_EXPECTED_ENV (it says: $MAKE_BUILT_FOR). Ignoring.])
480        else
481          FOUND_MAKE=$MAKE_CANDIDATE
482          BASIC_FIXUP_EXECUTABLE(FOUND_MAKE)
483        fi
484      fi
485    fi
486  fi
487])
488
489# Goes looking for a usable version of GNU make.
490AC_DEFUN([BASIC_CHECK_GNU_MAKE],
491[
492  # We need to find a recent version of GNU make. Especially on Solaris, this can be tricky.
493  if test "x$MAKE" != x; then
494    # User has supplied a make, test it.
495    if test ! -f "$MAKE"; then
496      AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not found.])
497    fi
498    BASIC_CHECK_MAKE_VERSION("$MAKE", [user supplied MAKE=$MAKE])
499    if test "x$FOUND_MAKE" = x; then
500      AC_MSG_ERROR([The specified make (by MAKE=$MAKE) is not GNU make 3.81 or newer.])
501    fi
502  else
503    # Try our hardest to locate a correct version of GNU make
504    AC_PATH_PROGS(CHECK_GMAKE, gmake)
505    BASIC_CHECK_MAKE_VERSION("$CHECK_GMAKE", [gmake in PATH])
506
507    if test "x$FOUND_MAKE" = x; then
508      AC_PATH_PROGS(CHECK_MAKE, make)
509      BASIC_CHECK_MAKE_VERSION("$CHECK_MAKE", [make in PATH])
510    fi
511
512    if test "x$FOUND_MAKE" = x; then
513      if test "x$TOOLS_DIR" != x; then
514        # We have a tools-dir, check that as well before giving up.
515        OLD_PATH=$PATH
516        PATH=$TOOLS_DIR:$PATH
517        AC_PATH_PROGS(CHECK_TOOLSDIR_GMAKE, gmake)
518        BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_GMAKE", [gmake in tools-dir])
519        if test "x$FOUND_MAKE" = x; then
520          AC_PATH_PROGS(CHECK_TOOLSDIR_MAKE, make)
521          BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_MAKE", [make in tools-dir])
522        fi
523        PATH=$OLD_PATH
524      fi
525    fi
526
527    if test "x$FOUND_MAKE" = x; then
528      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.])
529    fi
530  fi
531
532  MAKE=$FOUND_MAKE
533  AC_SUBST(MAKE)
534  AC_MSG_NOTICE([Using GNU make 3.81 (or later) at $FOUND_MAKE (version: $MAKE_VERSION_STRING)])
535])
536
537AC_DEFUN([BASIC_CHECK_FIND_DELETE],
538[
539    # Test if find supports -delete
540    AC_MSG_CHECKING([if find supports -delete])
541    FIND_DELETE="-delete"
542
543    DELETEDIR=`$MKTEMP -d tmp.XXXXXXXXXX` || (echo Could not create temporary directory!; exit $?)
544
545    echo Hejsan > $DELETEDIR/TestIfFindSupportsDelete
546
547    TEST_DELETE=`$FIND "$DELETEDIR" -name TestIfFindSupportsDelete $FIND_DELETE 2>&1`
548    if test -f $DELETEDIR/TestIfFindSupportsDelete; then
549        # No, it does not.
550        rm $DELETEDIR/TestIfFindSupportsDelete
551        FIND_DELETE="-exec rm \{\} \+"
552        AC_MSG_RESULT([no])    
553    else
554        AC_MSG_RESULT([yes])    
555    fi
556    rmdir $DELETEDIR
557    AC_SUBST(FIND_DELETE)
558])
559
560AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
561[
562BASIC_CHECK_GNU_MAKE
563
564BASIC_CHECK_FIND_DELETE
565
566# These tools might not be installed by default, 
567# need hint on how to install them.
568BASIC_REQUIRE_PROG(UNZIP, unzip)
569BASIC_REQUIRE_PROG(ZIP, zip)
570
571# Non-required basic tools
572
573AC_PATH_PROG(LDD, ldd)
574if test "x$LDD" = "x"; then
575    # List shared lib dependencies is used for
576    # debug output and checking for forbidden dependencies.
577    # We can build without it.
578    LDD="true"
579fi
580AC_PATH_PROG(OTOOL, otool)
581if test "x$OTOOL" = "x"; then
582   OTOOL="true"
583fi
584AC_PATH_PROGS(READELF, [readelf greadelf])
585AC_PATH_PROG(HG, hg)
586AC_PATH_PROG(STAT, stat)
587AC_PATH_PROG(TIME, time)
588
589if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
590  BASIC_REQUIRE_PROG(COMM, comm)
591fi
592])
593
594# Check if build directory is on local disk. If not possible to determine,
595# we prefer to claim it's local.
596# Argument 1: directory to test
597# Argument 2: what to do if it is on local disk
598# Argument 3: what to do otherwise (remote disk or failure)
599AC_DEFUN([BASIC_CHECK_DIR_ON_LOCAL_DISK],
600[
601	# df -l lists only local disks; if the given directory is not found then
602	# a non-zero exit code is given
603  if test "x$DF" = x; then
604    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
605      # msys does not have df; use Windows "net use" instead.
606      IS_NETWORK_DISK=`net use | grep \`pwd -W | cut -d ":" -f 1 | tr a-z A-Z\`:`
607      if test "x$IS_NETWORK_DISK" = x; then
608        $2
609      else
610        $3
611      fi
612    else
613      # No df here, say it's local
614      $2
615    fi
616  else
617    if $DF -l $1 > /dev/null 2>&1; then
618      $2
619    else
620      $3
621    fi
622  fi
623])
624
625AC_DEFUN_ONCE([BASIC_TEST_USABILITY_ISSUES],
626[
627
628AC_MSG_CHECKING([if build directory is on local disk])
629BASIC_CHECK_DIR_ON_LOCAL_DISK($OUTPUT_ROOT,
630  [OUTPUT_DIR_IS_LOCAL="yes"],
631  [OUTPUT_DIR_IS_LOCAL="no"])
632AC_MSG_RESULT($OUTPUT_DIR_IS_LOCAL)
633
634# Check if the user has any old-style ALT_ variables set.
635FOUND_ALT_VARIABLES=`env | grep ^ALT_`
636
637# Before generating output files, test if they exist. If they do, this is a reconfigure.
638# Since we can't properly handle the dependencies for this, warn the user about the situation
639if test -e $OUTPUT_ROOT/spec.gmk; then
640  IS_RECONFIGURE=yes
641else
642  IS_RECONFIGURE=no
643fi
644
645if test -e $SRC_ROOT/build/.hide-configure-performance-hints; then
646  HIDE_PERFORMANCE_HINTS=yes
647else
648  HIDE_PERFORMANCE_HINTS=no
649  # Hide it the next time around...
650  $TOUCH $SRC_ROOT/build/.hide-configure-performance-hints > /dev/null 2>&1
651fi
652
653])
654