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gerrit-public.fairphone.software / fp2-dev / platform / external / bison / refs/heads/fp2-m-sibon / . / m4 / javacomp.m4
blob: 8213c9fa5d9a1542e414cf0c1040a8b0e4812cd6 [file] [log] [blame]
Ying Wang05436632013-04-05 16:01:00 -0700[diff] [blame]1# javacomp.m4 serial 12
2dnl Copyright (C) 2001-2003, 2006-2007, 2009-2012 Free Software Foundation,
3dnl Inc.
4dnl This file is free software; the Free Software Foundation
5dnl gives unlimited permission to copy and/or distribute it,
6dnl with or without modifications, as long as this notice is preserved.
7
8# Prerequisites of javacomp.sh.
9# gt_JAVACOMP([source-version], [target-version])
10# Sets HAVE_JAVACOMP to nonempty if javacomp.sh will allow Java source code
11# according to source-version to be compiled to Java bytecode classes in the
12# target-version format.
13#
14# source-version can be: support for
15# 1.3 inner classes
16# 1.4 assert keyword
17# 1.5 generic classes and methods
18# 1.6 (not yet supported)
19#
20# target-version can be: classfile version:
21# 1.1 45.3
22# 1.2 46.0
23# 1.3 47.0
24# 1.4 48.0
25# 1.5 49.0
26# 1.6 50.0
27# The classfile version of a .class file can be determined through the "file"
28# command. More portably, the classfile major version can be determined through
29# "od -A n -t d1 -j 7 -N 1 classfile".
30# target-version can also be omitted. In this case, the required target-version
31# is determined from the found JVM (see macro gt_JAVAEXEC):
32# target-version for JVM
33# 1.1 JDK 1.1, jview
34# 1.2 JDK/JRE 1.2
35# 1.3 JDK/JRE 1.3, gij 3.3, 3.4
36# 1.4 JDK/JRE 1.4, gij 4.0, 4.1
37# 1.5 JDK/JRE 1.5
38# 1.6 JDK/JRE 1.6
39# Note: gij >= 3.3 can in some cases handle classes compiled with -target 1.4,
40# and gij >= 4.1 can in some cases partially handle classes compiled with
41# -target 1.5, but I have no idea how complete this support is.
42#
43# Specifying target-version is useful when building a library (.jar) that is
44# useful outside the given package. Omitting target-version is useful when
45# building an application.
46#
47# It is unreasonable to ask for:
48# - target-version < 1.4 with source-version >= 1.4, or
49# - target-version < 1.5 with source-version >= 1.5, or
50# - target-version < 1.6 with source-version >= 1.6,
51# because even Sun's javac doesn't support these combinations.
52#
53# It is redundant to ask for a target-version > source-version, since the
54# smaller target-version = source-version will also always work and newer JVMs
55# support the older target-versions too. Except for the case
56# target-version = 1.4, source-version = 1.3, which allows gcj versions 3.0
57# to 3.2 to be used.
58
59AC_DEFUN([gt_JAVACOMP],
60[
61 ifelse([$2], [], [AC_REQUIRE([gt_JAVAEXEC])], [])
62 AC_EGREP_CPP([yes], [
63#if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__
64 yes
65#endif
66], CLASSPATH_SEPARATOR=';', CLASSPATH_SEPARATOR=':')
67 source_version=$1
68 test -n "$source_version" || {
69 AC_MSG_ERROR([missing source-version argument to gt_@&t@JAVACOMP])
70 }
71 ifelse([$2], [],
72 [if test -n "$HAVE_JAVAEXEC"; then
73 dnl Use $CONF_JAVA to determine the JVM's version.
74changequote(,)dnl
75 cat > conftestver.java <<EOF
76public class conftestver {
77 public static void main (String[] args) {
78 System.out.println(System.getProperty("java.specification.version"));
79 }
80}
81EOF
82changequote([,])dnl
83 dnl A precompiled version of conftestver.java, compiled with
84 dnl "javac -target 1.1". This avoids having to compile conftestver.java
85 dnl during each test for a suitable Java compiler.
86 dnl For the conversion from binary to this ASCII encapsulation, avoiding
87 dnl to assume the presence of uudecode, use the command
88 dnl $ od -A n -t o1 < conftestver.class | tr ' ' '\012'| sort | uniq | sed -e '/^$/d' -e 's,^,\\,' | tr -d '\012'
89 dnl and the long tr command in opposite direction.
90 dnl Finally move the position corresponding to \055 to the last position,
91 dnl to work around a coreutils-5.x bug.
92 echo 'yzwx!$!I!D,!)!3+!4!5*!6,!4!7,!8!9)!:)!;"!(MeienN"!$FGW"!%Ojab"!2QeibRohZblVYZgb"!%hYei"!9FXQfYpYKgYidKUnleidLGW"!,Ujol_bPegb"!3_jicnbmnpblJfYpY/!*!+)!</!=!>"!=fYpYJmkb_ece_YnejiJpblmeji/!?!@)!A/!B!C"!._jicnbmnpbl"!3fYpYKgYidKSZfb_n"!3fYpYKgYidKUqmnbh"!$jon"!8QfYpYKejKTleinUnlbYhL"!.dbnTljkblnq"!EFQfYpYKgYidKUnleidLGQfYpYKgYidKUnleidL"!6fYpYKejKTleinUnlbYh"!)kleingi"!8FQfYpYKgYidKUnleidLGW!D!(!)!!!!!#!"!*!+!"!,!!!@!"!"!!!&Hu!"r!!!"!.!!!(!"!!!"!+!/!0!"!,!!!F!#!"!!!/s!#5$v!%t!&r!!!"!.!!!,!#!!!$!.!%!"!1!!!#!2' \
93 | tr -d '\012\015' \
94 | tr '!"#$%&()*+,./0123456789:;<=>?@ABCDEFGHJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyzI' '\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037\040\041\046\050\051\052\056\057\073\074\076\103\106\114\116\117\120\123\124\126\133\141\142\143\144\145\146\147\151\152\154\155\156\157\160\162\163\164\165\166\171\261\262\266\267\270\272\276\312\376\055' \
95 > conftestver.class
96 target_version=`{
97 unset JAVA_HOME
98 echo "$as_me:__oline__: CLASSPATH=.${CLASSPATH:+$CLASSPATH_SEPARATOR$CLASSPATH} $CONF_JAVA conftestver" >&AS_MESSAGE_LOG_FD
99 CLASSPATH=.${CLASSPATH:+$CLASSPATH_SEPARATOR$CLASSPATH} $CONF_JAVA conftestver 2>&AS_MESSAGE_LOG_FD
100 }`
101 case "$target_version" in
102 1.1 | 1.2 | 1.3 | 1.4 | 1.5 | 1.6) ;;
103 null)
104 dnl JDK 1.1.X returns null.
105 target_version=1.1 ;;
106 *) AC_MSG_WARN([unknown target-version $target_version, please update gt_@&t@JAVACOMP macro])
107 target_version=1.1 ;;
108 esac
109 else
110 target_version="1.1"
111 fi
112 ],
113 [target_version=$2])
114 case "$source_version" in
115 1.3) goodcode='class conftest {}'
116 failcode='class conftestfail { static { assert(true); } }' ;;
117 1.4) goodcode='class conftest { static { assert(true); } }'
118 failcode='class conftestfail<T> { T foo() { return null; } }' ;;
119 1.5) goodcode='class conftest<T> { T foo() { return null; } }'
120 failcode='class conftestfail syntax error' ;;
121 *) AC_MSG_ERROR([invalid source-version argument to gt_@&t@JAVACOMP: $source_version]) ;;
122 esac
123 case "$target_version" in
124 1.1) cfversion=45 ;;
125 1.2) cfversion=46 ;;
126 1.3) cfversion=47 ;;
127 1.4) cfversion=48 ;;
128 1.5) cfversion=49 ;;
129 1.6) cfversion=50 ;;
130 *) AC_MSG_ERROR([invalid target-version argument to gt_@&t@JAVACOMP: $target_version]) ;;
131 esac
132 # Function to output the classfile version of a file (8th byte) in decimal.
133 if od -A x < /dev/null >/dev/null 2>/dev/null; then
134 # Use POSIX od.
135 func_classfile_version ()
136 {
137 od -A n -t d1 -j 7 -N 1 "[$]1"
138 }
139 else
140 # Use BSD hexdump.
141 func_classfile_version ()
142 {
143 dd if="[$]1" bs=1 count=1 skip=7 2>/dev/null | hexdump -e '1/1 "%3d "'
144 echo
145 }
146 fi
147 AC_MSG_CHECKING([for Java compiler])
148 dnl
149 dnl The support of GNU gcj for target-version and source-version:
150 dnl
151 dnl gcj 3.0.4 to 4.2 does not have a way to specify the target-version.
152 dnl It always assumes target-version=1.4 but labels the class files as 1.1.
153 dnl One consequence of this is that gcj compiles GetURL.java to invalid
154 dnl bytecode, which crashes with a VerifyError when executed by Sun Java
155 dnl 1.3.1. The bug is registered as java/7066, see
156 dnl http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7066
157 dnl gcj 4.3 and newer has an option -ftarget=1.X.
158 dnl
159 dnl For gcj < 3.3, the source-version always is 1.3.
160 dnl For 3.3 <= gcj < 4.3, the source-version defaults to 1.4; option
161 dnl "-fno-assert" switches to source-version 1.3.
162 dnl gcj >= 4.3 has an option -fsource=1.X.
163 dnl
164 dnl The support of Sun javac for target-version and source-version:
165 dnl
166 dnl javac 1.3: -target 1.1 1.2 1.3 default: 1.1
167 dnl source always: 1.3
168 dnl
169 dnl javac 1.4: -target 1.1 1.2 1.3 1.4 default: 1.2
170 dnl -source 1.3 1.4 default: 1.3
171 dnl -target 1.1/1.2/1.3 only possible with -source 1.3 or no -source
172 dnl
173 dnl javac 1.5: -target 1.1 1.2 1.3 1.4 1.5 default: 1.5
174 dnl -source 1.3 1.4 1.5 default: 1.5
175 dnl -target 1.1/1.2/1.3 only possible with -source 1.3
176 dnl -target 1.4 only possible with -source 1.3/1.4
177 dnl
178 dnl javac 1.6: -target 1.1 1.2 1.3 1.4 1.5 1.6 default: 1.6
179 dnl -source 1.3 1.4 1.5 1.6 default: 1.5
180 dnl -target 1.1/1.2/1.3 only possible with -source 1.3
181 dnl -target 1.4 only possible with -source 1.3/1.4
182 dnl -target 1.5 only possible with -source 1.3/1.4/1.5 or no -source
183 dnl
184 dnl The support of jikes for target-version and source-version:
185 dnl
186 dnl jikes 1.14 does not have a way to specify the target-version. It
187 dnl always assumes target-version=1.1.
188 dnl
189 dnl For jikes 1.14, the source-version always is 1.3.
190 dnl
191 CONF_JAVAC=
192 HAVE_JAVAC_ENVVAR=
193 HAVE_GCJ_C=
194 HAVE_JAVAC=
195 HAVE_JIKES=
196 HAVE_JAVACOMP=
197changequote(,)dnl
198 cat > conftestlib.java <<EOF
199public class conftestlib {
200 public static void main (String[] args) {
201 }
202}
203EOF
204changequote([,])dnl
205 echo "$goodcode" > conftest.java
206 echo "$failcode" > conftestfail.java
207 dnl If the user has set the JAVAC environment variable, use that, if it
208 dnl satisfies the constraints (possibly after adding -target and -source
209 dnl options).
210 if test -n "$JAVAC"; then
211 dnl Try the original $JAVAC.
212 if $JAVAC --version 2>/dev/null | sed -e 1q | grep gcj > /dev/null; then
213 dnl It's a version of gcj.
214changequote(,)dnl
215 if $JAVAC --version 2>/dev/null | sed -e 's,^[^0-9]*,,' -e 1q | sed -e '/^4\.[012]/d' | grep '^[4-9]' >/dev/null; then
216changequote([,])dnl
217 dnl It's a version of gcj >= 4.3. Assume the classfile versions are correct.
218 dnl Try $JAVAC.
219 rm -f conftest.class
220 if { echo "$as_me:__oline__: $JAVAC -d . conftest.java" >&AS_MESSAGE_LOG_FD
221 $JAVAC -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
222 } \
223 && test -f conftest.class \
224 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
225 dnl Try adding -fsource option if it is useful.
226 rm -f conftest.class
227 rm -f conftestfail.class
228 if { echo "$as_me:__oline__: $JAVAC -fsource=$source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
229 $JAVAC -fsource="$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
230 } \
231 && test -f conftest.class \
232 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD \
233 && { echo "$as_me:__oline__: $JAVAC -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
234 $JAVAC -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
235 } \
236 && test -f conftestfail.class \
237 && ! { echo "$as_me:__oline__: $JAVAC -fsource=$source_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
238 $JAVAC -fsource="$source_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
239 }; then
240 CONF_JAVAC="$JAVAC -fsource=$source_version"
241 HAVE_JAVAC_ENVVAR=1
242 HAVE_JAVACOMP=1
243 else
244 CONF_JAVAC="$JAVAC"
245 HAVE_JAVAC_ENVVAR=1
246 HAVE_JAVACOMP=1
247 fi
248 else
249 dnl Try with -fsource and -ftarget options.
250 rm -f conftest.class
251 rm -f conftestfail.class
252 if { echo "$as_me:__oline__: $JAVAC -fsource=$source_version -ftarget=$target_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
253 $JAVAC -fsource="$source_version" -ftarget="$target_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
254 } \
255 && test -f conftest.class \
256 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
257 CONF_JAVAC="$JAVAC -fsource=$source_version -ftarget=$target_version"
258 HAVE_JAVAC_ENVVAR=1
259 HAVE_JAVACOMP=1
260 fi
261 fi
262 else
263 dnl It's a version of gcj < 4.3. Ignore the version of conftest.class.
264 if test "$target_version" = 1.4 && test "$source_version" = 1.4; then
265 dnl Try $JAVAC.
266 rm -f conftest.class
267 if { echo "$as_me:__oline__: $JAVAC -d . conftest.java" >&AS_MESSAGE_LOG_FD
268 $JAVAC -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
269 } \
270 && test -f conftest.class; then
271 CONF_JAVAC="$JAVAC"
272 HAVE_JAVAC_ENVVAR=1
273 HAVE_JAVACOMP=1
274 fi
275 else
276 if test "$target_version" = 1.4 && test "$source_version" = 1.3; then
277 dnl Try $JAVAC and "$JAVAC -fno-assert". But add -fno-assert only if
278 dnl it makes a difference. (It could already be part of $JAVAC.)
279 javac_works=
280 rm -f conftest.class
281 if { echo "$as_me:__oline__: $JAVAC -d . conftest.java" >&AS_MESSAGE_LOG_FD
282 $JAVAC -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
283 } \
284 && test -f conftest.class; then
285 javac_works=1
286 fi
287 javac_noassert_works=
288 rm -f conftest.class
289 if { echo "$as_me:__oline__: $JAVAC -fno-assert -d . conftest.java" >&AS_MESSAGE_LOG_FD
290 $JAVAC -fno-assert -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
291 } \
292 && test -f conftest.class; then
293 javac_noassert_works=1
294 fi
295 if test -n "$javac_works" && test -n "$javac_noassert_works"; then
296 rm -f conftestfail.class
297 if { echo "$as_me:__oline__: $JAVAC -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
298 $JAVAC -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
299 } \
300 && test -f conftestfail.class \
301 && ! { echo "$as_me:__oline__: $JAVAC -fno-assert -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
302 $JAVAC -fno-assert -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
303 }; then
304 dnl "$JAVAC -fno-assert" works better than $JAVAC.
305 javac_works=
306 fi
307 fi
308 if test -n "$javac_works"; then
309 CONF_JAVAC="$JAVAC"
310 HAVE_JAVAC_ENVVAR=1
311 HAVE_JAVACOMP=1
312 else
313 if test -n "$javac_noassert_works"; then
314 CONF_JAVAC="$JAVAC -fno-assert"
315 HAVE_JAVAC_ENVVAR=1
316 HAVE_JAVACOMP=1
317 fi
318 fi
319 fi
320 fi
321 fi
322 else
323 dnl It's not gcj. Assume the classfile versions are correct.
324 dnl Try $JAVAC.
325 rm -f conftest.class
326 if { echo "$as_me:__oline__: $JAVAC -d . conftest.java" >&AS_MESSAGE_LOG_FD
327 $JAVAC -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
328 } \
329 && test -f conftest.class \
330 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
331 dnl Try adding -source option if it is useful.
332 rm -f conftest.class
333 rm -f conftestfail.class
334 if { echo "$as_me:__oline__: $JAVAC -source $source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
335 $JAVAC -source "$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
336 } \
337 && test -f conftest.class \
338 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD \
339 && { echo "$as_me:__oline__: $JAVAC -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
340 $JAVAC -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
341 } \
342 && test -f conftestfail.class \
343 && ! { echo "$as_me:__oline__: $JAVAC -source $source_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
344 $JAVAC -source "$source_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
345 }; then
346 CONF_JAVAC="$JAVAC -source $source_version"
347 HAVE_JAVAC_ENVVAR=1
348 HAVE_JAVACOMP=1
349 else
350 CONF_JAVAC="$JAVAC"
351 HAVE_JAVAC_ENVVAR=1
352 HAVE_JAVACOMP=1
353 fi
354 else
355 dnl Try with -target option alone. (Sun javac 1.3.1 has the -target
356 dnl option but no -source option.)
357 rm -f conftest.class
358 if { echo "$as_me:__oline__: $JAVAC -target $target_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
359 $JAVAC -target "$target_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
360 } \
361 && test -f conftest.class \
362 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
363 dnl Try adding -source option if it is useful.
364 rm -f conftest.class
365 rm -f conftestfail.class
366 if { echo "$as_me:__oline__: $JAVAC -target $target_version -source $source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
367 $JAVAC -target "$target_version" -source "$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
368 } \
369 && test -f conftest.class \
370 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD \
371 && { echo "$as_me:__oline__: $JAVAC -target $target_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
372 $JAVAC -target "$target_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
373 } \
374 && test -f conftestfail.class \
375 && ! { echo "$as_me:__oline__: $JAVAC -target $target_version -source $source_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
376 $JAVAC -target "$target_version" -source "$source_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
377 }; then
378 CONF_JAVAC="$JAVAC -target $target_version -source $source_version"
379 HAVE_JAVAC_ENVVAR=1
380 HAVE_JAVACOMP=1
381 else
382 CONF_JAVAC="$JAVAC -target $target_version"
383 HAVE_JAVAC_ENVVAR=1
384 HAVE_JAVACOMP=1
385 fi
386 else
387 dnl Maybe this -target option requires a -source option? Try with
388 dnl -target and -source options. (Supported by Sun javac 1.4 and
389 dnl higher.)
390 rm -f conftest.class
391 if { echo "$as_me:__oline__: $JAVAC -target $target_version -source $source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
392 $JAVAC -target "$target_version" -source "$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
393 } \
394 && test -f conftest.class \
395 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
396 CONF_JAVAC="$JAVAC -target $target_version -source $source_version"
397 HAVE_JAVAC_ENVVAR=1
398 HAVE_JAVACOMP=1
399 fi
400 fi
401 fi
402 fi
403 fi
404 if test -z "$HAVE_JAVACOMP"; then
405 pushdef([AC_MSG_CHECKING],[:])dnl
406 pushdef([AC_CHECKING],[:])dnl
407 pushdef([AC_MSG_RESULT],[:])dnl
408 AC_CHECK_PROG([HAVE_GCJ_IN_PATH], [gcj], [yes])
409 AC_CHECK_PROG([HAVE_JAVAC_IN_PATH], [javac], [yes])
410 AC_CHECK_PROG([HAVE_JIKES_IN_PATH], [jikes], [yes])
411 popdef([AC_MSG_RESULT])dnl
412 popdef([AC_CHECKING])dnl
413 popdef([AC_MSG_CHECKING])dnl
414 if test -z "$HAVE_JAVACOMP" && test -n "$HAVE_GCJ_IN_PATH"; then
415 dnl Test for a good gcj version (>= 3.0).
416changequote(,)dnl
417 if gcj --version 2>/dev/null | sed -e 's,^[^0-9]*,,' -e 1q | sed -e '/^3\.[01]/d' | grep '^[3-9]' >/dev/null; then
418changequote([,])dnl
419 dnl See if libgcj.jar is well installed.
420 if { echo "$as_me:__oline__: gcj -C -d . conftestlib.java" >&AS_MESSAGE_LOG_FD
421 gcj -C -d . conftestlib.java >&AS_MESSAGE_LOG_FD 2>&1
422 }; then
423 dnl OK, gcj works.
424changequote(,)dnl
425 if gcj --version 2>/dev/null | sed -e 's,^[^0-9]*,,' -e 1q | sed -e '/^4\.[012]/d' | grep '^[4-9]' >/dev/null; then
426changequote([,])dnl
427 dnl It's a version of gcj >= 4.3. Assume the classfile versions are correct.
428 dnl Try gcj.
429 rm -f conftest.class
430 if { echo "$as_me:__oline__: gcj -C -d . conftest.java" >&AS_MESSAGE_LOG_FD
431 gcj -C -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
432 } \
433 && test -f conftest.class \
434 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
435 dnl Try adding -fsource option if it is useful.
436 rm -f conftest.class
437 rm -f conftestfail.class
438 if { echo "$as_me:__oline__: gcj -C -fsource=$source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
439 gcj -C -fsource="$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
440 } \
441 && test -f conftest.class \
442 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD \
443 && { echo "$as_me:__oline__: gcj -C -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
444 gcj -C -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
445 } \
446 && test -f conftestfail.class \
447 && ! { echo "$as_me:__oline__: gcj -C -fsource=$source_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
448 gcj -C -fsource="$source_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
449 }; then
450 CONF_JAVAC="gcj -C -fsource=$source_version"
451 HAVE_JAVAC_ENVVAR=1
452 HAVE_JAVACOMP=1
453 else
454 CONF_JAVAC="gcj -C"
455 HAVE_JAVAC_ENVVAR=1
456 HAVE_JAVACOMP=1
457 fi
458 else
459 dnl Try with -fsource and -ftarget options.
460 rm -f conftest.class
461 rm -f conftestfail.class
462 if { echo "$as_me:__oline__: gcj -C -fsource=$source_version -ftarget=$target_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
463 gcj -C -fsource="$source_version" -ftarget="$target_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
464 } \
465 && test -f conftest.class \
466 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
467 CONF_JAVAC="gcj -C -fsource=$source_version -ftarget=$target_version"
468 HAVE_JAVAC_ENVVAR=1
469 HAVE_JAVACOMP=1
470 fi
471 fi
472 else
473 dnl It's a version of gcj < 4.3. Ignore the version of conftest.class.
474 dnl Now test whether it supports the desired target-version and
475 dnl source-version.
476 if test "$target_version" = 1.4 && test "$source_version" = 1.4; then
477 rm -f conftest.class
478 if { echo "$as_me:__oline__: gcj -C -d . conftest.java" >&AS_MESSAGE_LOG_FD
479 gcj -C -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
480 } \
481 && test -f conftest.class; then
482 CONF_JAVAC="gcj -C"
483 HAVE_GCJ_C=1
484 HAVE_JAVACOMP=1
485 fi
486 else
487 if test "$target_version" = 1.4 && test "$source_version" = 1.3; then
488 dnl Try gcj and "gcj -fno-assert". But add -fno-assert only if
489 dnl it works (not gcj < 3.3).
490 rm -f conftest.class
491 if { echo "$as_me:__oline__: gcj -C -fno-assert -d . conftest.java" >&AS_MESSAGE_LOG_FD
492 gcj -C -fno-assert -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
493 } \
494 && test -f conftest.class; then
495 CONF_JAVAC="gcj -C -fno-assert"
496 HAVE_GCJ_C=1
497 HAVE_JAVACOMP=1
498 else
499 rm -f conftest.class
500 if { echo "$as_me:__oline__: gcj -C -d . conftest.java" >&AS_MESSAGE_LOG_FD
501 gcj -C -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
502 } \
503 && test -f conftest.class; then
504 CONF_JAVAC="gcj -C"
505 HAVE_GCJ_C=1
506 HAVE_JAVACOMP=1
507 fi
508 fi
509 fi
510 fi
511 fi
512 fi
513 fi
514 fi
515 if test -z "$HAVE_JAVACOMP" && test -n "$HAVE_JAVAC_IN_PATH"; then
516 dnl Test whether javac is usable.
517 if { javac -version >/dev/null 2>/dev/null || test $? -le 2; } \
518 && ( if javac -help 2>&1 >/dev/null | grep at.dms.kjc.Main >/dev/null && javac -help 2>/dev/null | grep 'released.*2000' >/dev/null ; then exit 1; else exit 0; fi ); then
519 dnl OK, javac works.
520 dnl Now test whether it supports the desired target-version and
521 dnl source-version.
522 rm -f conftest.class
523 if { echo "$as_me:__oline__: javac -d . conftest.java" >&AS_MESSAGE_LOG_FD
524 javac -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
525 } \
526 && test -f conftest.class \
527 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
528 dnl Try adding -source option if it is useful.
529 rm -f conftest.class
530 rm -f conftestfail.class
531 if { echo "$as_me:__oline__: javac -source $source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
532 javac -source "$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
533 } \
534 && test -f conftest.class \
535 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD \
536 && { echo "$as_me:__oline__: javac -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
537 javac -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
538 } \
539 && test -f conftestfail.class \
540 && ! { echo "$as_me:__oline__: javac -source $source_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
541 javac -source "$source_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
542 }; then
543 CONF_JAVAC="javac -source $source_version"
544 HAVE_JAVAC=1
545 HAVE_JAVACOMP=1
546 else
547 CONF_JAVAC="javac"
548 HAVE_JAVAC=1
549 HAVE_JAVACOMP=1
550 fi
551 else
552 dnl Try with -target option alone. (Sun javac 1.3.1 has the -target
553 dnl option but no -source option.)
554 rm -f conftest.class
555 if { echo "$as_me:__oline__: javac -target $target_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
556 javac -target "$target_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
557 } \
558 && test -f conftest.class \
559 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
560 dnl Try adding -source option if it is useful.
561 rm -f conftest.class
562 rm -f conftestfail.class
563 if { echo "$as_me:__oline__: javac -target $target_version -source $source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
564 javac -target "$target_version" -source "$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
565 } \
566 && test -f conftest.class \
567 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD \
568 && { echo "$as_me:__oline__: javac -target $target_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
569 javac -target "$target_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
570 } \
571 && test -f conftestfail.class \
572 && ! { echo "$as_me:__oline__: javac -target $target_version -source $source_version -d . conftestfail.java" >&AS_MESSAGE_LOG_FD
573 javac -target "$target_version" -source "$source_version" -d . conftestfail.java >&AS_MESSAGE_LOG_FD 2>&1
574 }; then
575 CONF_JAVAC="javac -target $target_version -source $source_version"
576 HAVE_JAVAC=1
577 HAVE_JAVACOMP=1
578 else
579 CONF_JAVAC="javac -target $target_version"
580 HAVE_JAVAC=1
581 HAVE_JAVACOMP=1
582 fi
583 else
584 dnl Maybe this -target option requires a -source option? Try with
585 dnl -target and -source options. (Supported by Sun javac 1.4 and
586 dnl higher.)
587 rm -f conftest.class
588 if { echo "$as_me:__oline__: javac -target $target_version -source $source_version -d . conftest.java" >&AS_MESSAGE_LOG_FD
589 javac -target "$target_version" -source "$source_version" -d . conftest.java >&AS_MESSAGE_LOG_FD 2>&1
590 } \
591 && test -f conftest.class \
592 && expr `func_classfile_version conftest.class` '<=' $cfversion >/dev/null 2>&AS_MESSAGE_LOG_FD; then
593 CONF_JAVAC="javac -target $target_version -source $source_version"
594 HAVE_JAVAC=1
595 HAVE_JAVACOMP=1
596 fi
597 fi
598 fi
599 fi
600 fi
601 if test -z "$HAVE_JAVACOMP" && test -n "$HAVE_JIKES_IN_PATH"; then
602 dnl Test whether jikes is usable.
603 if { jikes >/dev/null 2>/dev/null || test $? = 1; } \
604 && (
605 # See if the existing CLASSPATH is sufficient to make jikes work.
606 unset JAVA_HOME
607 jikes conftestlib.java >&AS_MESSAGE_LOG_FD 2>&1
608 error=$?
609 rm -f conftestlib.class
610 exit $error
611 ); then
612 dnl OK, jikes works.
613 dnl Now test whether it supports the desired target-version and
614 dnl source-version.
615 if test "$source_version" = 1.3; then
616 CONF_JAVAC="jikes"
617 HAVE_JIKES=1
618 HAVE_JAVACOMP=1
619 fi
620 fi
621 fi
622 fi
623 rm -f conftest*.java conftest*.class
624 if test -n "$HAVE_JAVACOMP"; then
625 ac_result="$CONF_JAVAC"
626 else
627 ac_result="no"
628 fi
629 AC_MSG_RESULT([$ac_result])
630 AC_SUBST([CONF_JAVAC])
631 AC_SUBST([CLASSPATH])
632 AC_SUBST([CLASSPATH_SEPARATOR])
633 AC_SUBST([HAVE_JAVAC_ENVVAR])
634 AC_SUBST([HAVE_GCJ_C])
635 AC_SUBST([HAVE_JAVAC])
636 AC_SUBST([HAVE_JIKES])
637])