summaryrefslogtreecommitdiff
path: root/libjava/configure.ac
blob: 656384be1fae685f880fa3f5ef19b2f195b195d0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
dnl # Process this with autoconf to create configure

sinclude(../config/sjlj.m4)

AC_PREREQ(2.64)
# Still use "libjava" here to placate dejagnu.
AC_INIT([libjava], [version-unused],, [libjava])

AC_CONFIG_SRCDIR(java/lang/System.java)

GCC_TOPLEV_SUBDIRS

# We use these options to decide which functions to include.
AC_ARG_WITH(target-subdir,
  AS_HELP_STRING([--with-target-subdir=SUBDIR],
                 [configure in a subdirectory]))

# We may get other options which we don't document:
# --with-target-subdir, --with-multisrctop, --with-multisubdir

# Find the rest of the source tree framework.
AM_ENABLE_MULTILIB(, ..)

AC_CANONICAL_SYSTEM
_GCC_TOPLEV_NONCANONICAL_BUILD
_GCC_TOPLEV_NONCANONICAL_TARGET

AC_SUBST(target_noncanonical)

GCC_LIBSTDCXX_RAW_CXX_FLAGS

# This works around the fact that libtool configuration may change LD
# for this particular configuration, but some shells, instead of
# keeping the changes in LD private, export them just because LD is
# exported.
ORIGINAL_LD_FOR_MULTILIBS=$LD

AC_PROG_LN_S

# This works around an automake problem.
mkinstalldirs="`cd $ac_aux_dir && ${PWDCMD-pwd}`/mkinstalldirs"
AC_SUBST(mkinstalldirs)

AC_ARG_WITH(cross-host,
  AS_HELP_STRING([--with-cross-host=HOST],
                 [configure with a cross compiler from HOST]))

AC_ARG_WITH(newlib,
  AS_HELP_STRING([--with-newlib],
                 [configure with newlib]))

AC_ARG_ENABLE(version-specific-runtime-libs,
  AS_HELP_STRING([--enable-version-specific-runtime-libs],    
                 [specify that runtime libraries should be installed in a compiler-specific directory]),
    [case "$enableval" in
      yes) version_specific_libs=yes ;;
      no)  version_specific_libs=no ;;
      *)   AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
     esac],
    [version_specific_libs=no]
)

AC_ARG_ENABLE(browser-plugin,
  AS_HELP_STRING([--enable-browser-plugin],
                 [build gcjwebplugin web browser plugin]),
    [case "$enableval" in
      yes) browser_plugin_enabled=yes ;;
      no)  browser_plugin_enabled=no ;;
      *)   AC_MSG_ERROR([Unknown argument to enable/disable browser plugin]);;
     esac],
    [browser_plugin_enabled=no]
)

AC_ARG_ENABLE(gconf-peer,
  AS_HELP_STRING([--enable-gconf-peer],
                 [compile GConf native peers for util.preferences]),
    [case "$enableval" in
      yes) gconf_enabled=yes ;;
      no)  gconf_enabled=no ;;
      *)   AC_MSG_ERROR([Unknown argument to enable/disable gconf-peer]);;
     esac],
    [gconf_enabled=no]
)

AC_ARG_WITH([antlr-jar],
            [AS_HELP_STRING([--with-antlr-jar=file],[Use ANTLR from the specified jar file])],
            [
             ANTLR_JAR=$withval
            ],
            [
             ANTLR_JAR=
            ])

AC_MSG_CHECKING([for antlr.jar])
if test "x$ANTLR_JAR" = x; then
    for antlr_lib_home in `ls -d /usr/local/share/antlr* 2> /dev/null` \
	/usr/share/antlr/lib /usr/share/java /usr/lib;
    do
	if test -f "$antlr_lib_home/antlr.jar"; then
	    # FIXME: version check for antlr needed without using a VM
	    ANTLR_JAR="$antlr_lib_home/antlr.jar"
	    break
	fi
    done
    if test "x$ANTLR_JAR" = x; then
	AC_MSG_RESULT([not found])
    else
	AC_MSG_RESULT($ANTLR_JAR)
    fi
else
    if test -f "${ANTLR_JAR}"; then
	AC_MSG_RESULT($ANTLR_JAR)
    else
	AC_MSG_ERROR([antlr jar file not found: $ANTLR_JAR])
    fi
fi
AC_SUBST(ANTLR_JAR)

AC_ARG_ENABLE([gjdoc],
              [AS_HELP_STRING(--disable-gjdoc,compile GJDoc (disabled by --disable-gjdoc) [default=yes])],
              [case "${enableval}" in
                yes) BUILD_GJDOC=yes ;;
                no) BUILD_GJDOC=no ;;
                *) BUILD_GJDOC=yes ;;
              esac],
              [BUILD_GJDOC=maybe])

AC_MSG_CHECKING([whether to build gjdoc])
if test "x$BUILD_GJDOC" = xmaybe; then
    if test -f "${ANTLR_JAR}"; then
	BUILD_GJDOC=yes
	AC_MSG_RESULT(yes)
    else
	BUILD_GJDOC=no
	AC_MSG_RESULT([no, antlr.jar not found])
    fi
else
    AC_MSG_RESULT($BUILD_GJDOC)
fi
AM_CONDITIONAL(CREATE_GJDOC, test "x${BUILD_GJDOC}" = xyes)

AC_ARG_ENABLE(java-maintainer-mode,
	AS_HELP_STRING([--enable-java-maintainer-mode],
	[allow rebuilding of .class and .h files]))
AM_CONDITIONAL(JAVA_MAINTAINER_MODE, test "$enable_java_maintainer_mode" = yes)

# It may not be safe to run linking tests in AC_PROG_CC/AC_PROG_CXX.
GCC_NO_EXECUTABLES

# For libstdc++-v3, -fno-builtin must be present here so that a
# non-conflicting form of std::exit can be guessed by AC_PROG_CXX, and
# used in later tests.  This may not be necessary in libjava; I don't know.
save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-builtin"
AC_PROG_CC
AC_PROG_CXX
CXXFLAGS="$save_CXXFLAGS"

AM_INIT_AUTOMAKE([no-dist 1.9.0])

AC_CHECK_TOOL(AS, as)
AC_CHECK_TOOL(LD, ld)
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_CHECK_TOOL(DLLTOOL, dlltool, :)
AC_PROG_AWK
AC_CHECK_PROGS([JAR], [jar fastjar gjar], no)
AC_PATH_PROG([ZIP], [zip], no)
AC_PATH_PROG([UNZIP], [unzip], unzip)

# We need a jar that supports -@.  This is a GNU extension.
if test "$JAR" != no; then
   rm -f config-test.jar
   echo $srcdir/configure.ac | $JAR -cf@ config-test.jar >/dev/null 2>&1
   if test -f config-test.jar; then
     rm -f config-test.jar
   else
     JAR=no
   fi
fi

# Prefer the jar we found, but fall back to our jar script.
if test "$JAR" = no; then
  if test "$ZIP" = no; then
    AC_MSG_ERROR([cannot find neither zip nor jar, cannot continue])
  else
    # InfoZIP available, use the 'guaranteed' Bourne-shell JAR to build libjava
    JAR=`pwd`/scripts/jar
  fi
fi

AC_PROG_INSTALL

AM_MAINTAINER_MODE

AC_EXEEXT

# configure.host sets the following important variables
#	libgcj_cflags    - host specific C compiler flags
#	libgcj_cxxflags  - host specific C++ compiler flags
#	libgcj_javaflags - host specific Java compiler flags
#	libgcj_sublib_ltflags - host specific Libtool flags 
#	libgcj_sublib_core_extra_deps - host specific extra 
#			   dependencies for core sublib
#	(these last two only used when building sublibs)
# and a number of others; see the list at the start of the file.

libgcj_cflags=
libgcj_cxxflags=
libgcj_javaflags=
libgcj_sublib_ltflags=
libgcj_sublib_core_extra_deps=

. ${srcdir}/configure.host

ACX_PROG_LD_GNU_SYMBOLIC
libgcj_ld_symbolic_functions=$SYMBOLIC_LDFLAGS
if test -z "$libgcj_ld_symbolic"; then
  libgcj_ld_symbolic=$SYMBOLIC_LDFLAGS
fi

# for windows native targets enforce export of all symbols for shared libgcj.
libgcj_ld_export_all=
case "$host" in
      *mingw*)
	libgcj_ld_export_all=-Wl,--export-all-symbols
	;;
      *)
        ;;
esac

LIBGCJ_CFLAGS="${libgcj_cflags}"
LIBGCJ_CXXFLAGS="${libgcj_cxxflags}"
LIBGCJ_JAVAFLAGS="${libgcj_javaflags}"
LIBGCJ_SUBLIB_LTFLAGS="${libgcj_sublib_ltflags}"
LIBGCJ_SUBLIB_CORE_EXTRA_DEPS="${libgcj_sublib_core_extra_deps}"
LIBGCJ_LD_SYMBOLIC="${libgcj_ld_symbolic}"
LIBGCJ_LD_SYMBOLIC_FUNCTIONS="${libgcj_ld_symbolic_functions}"
LIBGCJ_LD_EXPORT_ALL="${libgcj_ld_export_all}"
AC_SUBST(LIBGCJ_CFLAGS)
AC_SUBST(LIBGCJ_CXXFLAGS)
AC_SUBST(LIBGCJ_JAVAFLAGS)
AC_SUBST(LIBGCJ_SUBLIB_LTFLAGS)
AC_SUBST(LIBGCJ_SUBLIB_CORE_EXTRA_DEPS)
AC_SUBST(LIBGCJ_LD_SYMBOLIC)
AC_SUBST(LIBGCJ_LD_SYMBOLIC_FUNCTIONS)
AC_SUBST(LIBGCJ_LD_EXPORT_ALL)

# Only use libltdl for non-newlib builds.
if test "x${with_newlib}" = "x" || test "x${with_newlib}" = "xno"; then
   AC_LTDL_SHLIBPATH
fi

AC_CONFIG_HEADERS([include/config.h gcj/libgcj-config.h])

# Possibly build libgcj as many sub-libraries.
AC_ARG_ENABLE(libgcj-sublibs,
  AS_HELP_STRING([--enable-libgcj-sublibs],
                 [build libgcj as many sub-libraries]))

if test -z "$enable_libgcj_sublibs"; then
   enable_libgcj_sublibs=$enable_libgcj_sublibs_default
fi
AM_CONDITIONAL(BUILD_SUBLIBS, test "$enable_libgcj_sublibs" = yes)
if test "$enable_libgcj_sublibs" = yes ; then
  # In theory we could make do with only one override and simply
  # tag "_bc" onto the end of it when we use it to generate the
  # spec, but that's an ugly thing to do when there are multiple
  # words in the string and you're relying on the ordering to
  # append the correct one.
  libgcj_spec_lgcj_override="-lgcj-noncore -lgcj"
  libgcj_spec_lgcj_bc_override="-lgcj-noncore -lgcj_bc"
fi


# See if the user has requested runtime debugging.
LIBGCJDEBUG="disable"
AC_SUBST(LIBGCJDEBUG)
AC_ARG_ENABLE(libgcj-debug,
  AS_HELP_STRING([--enable-libgcj-debug],
                 [enable runtime debugging code]),
  [if test "$enable_libgcj_debug" = yes; then
    AC_DEFINE(__GCJ_DEBUG, 1, [Define this if you want runtime debugging enabled.])
    LIBGCJDEBUG="enable"
  fi])

AC_ARG_WITH([escher],
         AS_HELP_STRING([--with-escher=ABS.PATH],
                        [specify path to escher dir or JAR for X peers]))
case "$with_escher" in
"")
        use_escher=false
        ;;
"no")
        use_escher=false
        ;;
"yes")
        AC_MSG_ERROR([Please supply an absolute path to Escher library])
        ;;
*)
        use_escher=true
        ;;
esac

# Determine which AWT peer libraries to build
AC_ARG_ENABLE(java-awt,
  AS_HELP_STRING([--enable-java-awt],
                 [list of AWT peer implementations to be built]))

peerlibs="`echo ${enable_java_awt} | tr ',' ' '`"
use_xlib_awt=""
use_gtk_awt=""
use_qt_awt=""
use_x_awt=""
# The default toolkit to use is the first one specified.
TOOLKIT=
AC_SUBST(TOOLKIT)

for peer in $peerlibs ; do
  case $peer in
    xlib)
      if test "$no_x" = yes; then
        echo "*** xlib peers requested but no X library available" 1>&2
        exit 1
      else
        use_xlib_awt="yes"
	if test -z "$TOOLKIT"; then
	   TOOLKIT=gnu.awt.xlib.XToolkit
	fi
      fi
      ;;
    gtk)
      if test "$no_x" = yes; then
	 echo "*** gtk peers requested but no X library available" 1>&2
	 exit 1
      else
	 use_gtk_awt=yes
	 if test -z "$TOOLKIT"; then
	    TOOLKIT=gnu.java.awt.peer.gtk.GtkToolkit
	 fi
      fi
      ;;
    qt)
      if test "$no_x" = yes; then
         # Perhaps we should admit the possibility of embedded Qt.
	 echo "*** Qt peers requested but no X library available" 1>&2
	 exit 1
      else
	 use_qt_awt=yes
	 if test -z "$TOOLKIT"; then
	    TOOLKIT=gnu.java.awt.peer.qt.QtToolkit
	 fi
      fi
      ;;
    x)
      use_x_awt=yes
      if test -z "$TOOLKIT"; then
	 TOOLKIT=gnu.java.awt.peer.x.XToolkit
      fi
      ;;
    no)
      use_xlib_awt=
      use_gtk_awt=
      use_qt_awt=
      use_x_awt=
      break
      ;;
    *)
      echo "*** unrecognised argument \"${peer}\" for --enable-java-awt" 1>&2
      exit 1
  esac
done

AM_CONDITIONAL(XLIB_AWT, test "$use_xlib_awt" = yes)
AM_CONDITIONAL(X_AWT, test "$use_x_awt" = yes)

AC_DEFINE_UNQUOTED(AWT_TOOLKIT, "$TOOLKIT", [Name of default AWT toolkit])

expanded_prefix=$prefix
if test "X$prefix" = XNONE; then
  expanded_prefix=${ac_default_prefix}
fi

AC_DEFINE_UNQUOTED(LIBGCJ_PREFIX, "$expanded_prefix", [Installation prefix])

# Create standard.omit based on decisions we just made.
cp $srcdir/standard.omit.in standard.omit
if test "$use_xlib_awt" != yes; then
   echo gnu/awt/xlib >> standard.omit
   echo gnu/gcj/xlib >> standard.omit
fi
if test "$use_x_awt" != yes; then
   echo gnu/java/awt/peer/x >> standard.omit
fi

# Tools that need to be compiled against classpath's tools classes
: > vm-tools-packages
for package in gnu/gcj/tools/gc_analyze ; do
    echo $package >> standard.omit
    echo $package >> vm-tools-packages
done

if test -z "${with_multisubdir}"; then
   builddotdot=.
else
   builddotdot=`echo ${with_multisubdir} | sed -e 's:[[^/]][[^/]]*:..:g'`
fi

NATIVE=yes

# Which gcj and host gcj (for ecjx) do we use?
which_gcj=default
host_exeext=${ac_exeext}
GCJ_FOR_ECJX='$(GCJ)'
GCC_FOR_ECJX='$(CXX)'
built_gcc_dir="`cd ${builddotdot}/../../${host_subdir}/gcc && ${PWDCMD-pwd}`"
if test -n "${with_cross_host}"; then
  # We are being configured with a cross compiler. We can't
  # use ac_exeext, because that is for the target platform.
  NATIVE=no
  cross_host_exeext=
  GCJ_FOR_ECJX="${with_cross_host}-gcj"
  GCC_FOR_ECJX="${with_cross_host}-gcc"
  case "${with_cross_host}" in
     *mingw* | *cygwin*)
         cross_host_exeext=.exe
     ;;
  esac
  host_exeext=${cross_host_exeext}
  if test -x "${built_gcc_dir}/gcj${cross_host_exeext}"; then
     if test x"$build_noncanonical" = x"$with_cross_host"; then
        # Ordinary cross (host!=target and host=build)
        which_gcj=built
     else
        # Canadian cross (host!=target and host!=build)
        which_gcj=cross
     fi
  else
     which_gcj=cross
  fi
else
  # We are being configured with a native or crossed-native compiler
  if test -x "${built_gcc_dir}/gcj${ac_exeext}"; then
     if test x"$build" = x"$host"; then
        # True native build (host=target and host=build)
        which_gcj=built
     else
        # Crossed-native build (host=target and host!=build)
        which_gcj=cross
     fi
  else
     which_gcj=path
  fi
fi
libgcjdir=`${PWDCMD-pwd}`
case $GCJ in
*" -B"*)
  # Just in case there is a comma in the build dir, quote it for the
  # sed command below.
  case $libgcjdir in
  *[[,\\]]*) qlibgcjdir=`echo "$libgcjdir" | sed 's:[[,\\]]:\\&:g'`;;
  *) qlibgcjdir=$libgcjdir;;
  esac
  GCJ=`echo "$GCJ" | sed "s, -B, -B$qlibgcjdir/&,"`
  ;;
*)
  GCJ=$GCJ" -B$libgcjdir/"
  ;;
esac
case "${which_gcj}" in
   built)
      GCJH='$(top_builddir)/$(MULTIBUILDTOP)../../$(host_subdir)/gcc/gcjh'
   ;;
   cross)
      if test "x${with_newlib}" = "xyes"; then
         # FIXME (comment): Why is this needed?
         LIBGCC_UNWIND_INCLUDE=
      fi
      GCJH='$(target_noncanonical)-gcjh'
   ;;
   path)
      GCJH=gcjh
   ;;
esac
JAVAC="$GCJ -C"
export JAVAC

AC_SUBST(GCJ_FOR_ECJX)
AC_SUBST(GCC_FOR_ECJX)
AC_SUBST(GCJH)
AC_SUBST(host_exeext)

# Create it, so that compile/link tests don't fail
test -f libgcj.spec || touch libgcj.spec



# Set up to configure Classpath.
# FIXME: no supported way to pass args in autoconf.
# Disable tool wrappers to avoid ltdl.h configure check.
ac_configure_args="$ac_configure_args --disable-tool-wrappers"
ac_configure_args="$ac_configure_args --disable-load-library"
ac_configure_args="$ac_configure_args --${LIBGCJDEBUG}-debug"
ac_configure_args="$ac_configure_args --enable-default-toolkit=$TOOLKIT"
dir1=`cd $srcdir && pwd`
dir2=`pwd`
ac_configure_args="$ac_configure_args --with-vm-classes=$dir1:$dir2"
ac_configure_args="$ac_configure_args --disable-core-jni"
dnl FIXME?
ac_configure_args="$ac_configure_args --disable-examples"
ac_configure_args="$ac_configure_args --with-glibj=build"
if test "$browser_plugin_enabled" != yes; then
  ac_configure_args="$ac_configure_args --disable-plugin"
else
  ac_configure_args="$ac_configure_args --enable-plugin"
fi
if test "$gconf_enabled" != yes; then
  ac_configure_args="$ac_configure_args --disable-gconf-peer"
  ac_configure_args="$ac_configure_args --enable-default-preferences-peer=gnu.java.util.prefs.FileBasedFactory"
fi
if test "$use_gtk_awt" != yes; then
  ac_configure_args="$ac_configure_args --disable-gtk-peer --disable-plugin"
fi
if test "$use_qt_awt" != yes; then
  ac_configure_args="$ac_configure_args --disable-qt-peer"
else
  # We need this as qt is disabled by default in classpath.
  ac_configure_args="$ac_configure_args --enable-qt-peer"
fi
if test "$use_x_awt" != yes; then
  ac_configure_args="$ac_configure_args --without-escher"
else
  # We need this as escher is disabled by default in classpath.
  if test "$use_escher" != true; then
    AC_MSG_ERROR([Please supply an absolute path to the Escher library])
  else
    ac_configure_args="$ac_configure_args --with-escher=$with_escher"
  fi
fi
if test "x$BUILD_GJDOC" = xno; then
  ac_configure_args="$ac_configure_args --disable-gjdoc"
fi
# -Werror causes unavoidable problems in code using alsa.
ac_configure_args="$ac_configure_args --disable-regen-headers"
ac_configure_args="$ac_configure_args --disable-Werror"
dnl --with-gcj=$GCJ
dnl --with-javah=$GCJH
dnl gtk-cairo -- just export here...
dnl --enable-regen-headers?

# Only use libltdl for non-newlib builds.
if test "x${with_newlib}" = "x" || test "x${with_newlib}" = "xno"; then
   AC_LIBLTDL_CONVENIENCE
   AC_LIBTOOL_DLOPEN
   DIRLTDL=libltdl
   AC_DEFINE(USE_LTDL, 1, [Define if libltdl is in use.])
   # Sigh.  Libtool's macro doesn't do the right thing.
   INCLTDL="-I\$(top_srcdir)/libltdl $INCLTDL"
   # FIXME: this is a hack.
   sub_auxdir="`cd $ac_aux_dir && ${PWDCMD-pwd}`"
   ac_configure_args="$ac_configure_args --with-auxdir=$sub_auxdir"
fi
AC_SUBST(INCLTDL)
AC_SUBST(LIBLTDL)
AC_SUBST(DIRLTDL)
AC_PROG_LIBTOOL
ACX_LT_HOST_FLAGS
AM_PROG_GCJ
AM_PROG_CC_C_O

AC_CONFIG_SUBDIRS(classpath libltdl)

# The -no-testsuite modules omit the test subdir.
AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)

# Should the runtime set system properties by examining the 
# environment variable GCJ_PROPERTIES?
AC_ARG_ENABLE(getenv-properties,
  AS_HELP_STRING([--disable-getenv-properties],
                 [don't set system properties from GCJ_PROPERTIES]))

# Whether GCJ_PROPERTIES is used depends on the target.
if test -z "$enable_getenv_properties"; then
   enable_getenv_properties=${enable_getenv_properties_default-yes}
fi
if test "$enable_getenv_properties" = no; then
   AC_DEFINE(DISABLE_GETENV_PROPERTIES, 1,
     [Define if system properties shouldn't be read from getenv("GCJ_PROPERTIES").])
fi

# Whether we should use arguments to main()
if test -z "$enable_main_args"; then
   enable_main_args=${enable_main_args_default-yes}
fi
if test "$enable_main_args" = no; then
   AC_DEFINE(DISABLE_MAIN_ARGS, 1, [Define if we should ignore arguments to main().])
fi


# Should we use hashtable-based synchronization?
# Currently works only for Linux X86/ia64
# Typically faster and more space-efficient
AC_ARG_ENABLE(hash-synchronization,
  AS_HELP_STRING([--enable-hash-synchronization],
                 [use global hash table for monitor locks]))

if test -z "$enable_hash_synchronization"; then
   enable_hash_synchronization=$enable_hash_synchronization_default
fi


install_ecj_jar=no
ECJ_BUILD_JAR=
ECJ_JAR=
AC_ARG_WITH(ecj-jar,
	AS_HELP_STRING([--with-ecj-jar=FILE], [use preinstalled ecj jar]),
	[ECJ_JAR=$withval],
	[if test -f $multi_basedir/ecj.jar; then
	   ECJ_BUILD_JAR=$multi_basedir/ecj.jar
	   ECJ_JAR='$(jardir)/ecj.jar'
	   install_ecj_jar=yes
	 fi])
AC_SUBST(ECJ_BUILD_JAR)
AC_SUBST(ECJ_JAR)
AM_CONDITIONAL(BUILD_ECJ1, test "$ECJ_JAR" != "")
AM_CONDITIONAL(INSTALL_ECJ_JAR, test $install_ecj_jar = yes)

AC_ARG_WITH(java-home,
  AS_HELP_STRING([--with-java-home=DIRECTORY],
                 [value of java.home system property]),
		 [JAVA_HOME="${withval}"], [JAVA_HOME=""])
AM_CONDITIONAL(JAVA_HOME_SET, test ! -z "$JAVA_HOME")
AC_SUBST(JAVA_HOME)

suppress_libgcj_bc=no
AC_ARG_ENABLE(libgcj-bc,
  AS_HELP_STRING([--enable-libgcj-bc],
                 [enable(default) or disable BC ABI for portions of libgcj]),
  [if test "$enable_libgcj_bc" = "no"; then
     suppress_libgcj_bc=yes
   fi])
AM_CONDITIONAL(SUPPRESS_LIBGCJ_BC, test "$suppress_libgcj_bc" = "yes")

build_libgcj_reduced_reflection=no
AC_ARG_ENABLE(reduced-reflection,
  AS_HELP_STRING([--enable-reduced-reflection],
                 [enable or disable(default) -freduced-reflection when building portions of libgcj]),
  [if test "$enable_reduced_reflection" = "yes"; then
     build_libgcj_reduced_reflection=yes
   fi])
AM_CONDITIONAL(BUILD_LIBGCJ_REDUCED_REFLECTION, test "$build_libgcj_reduced_reflection" = "yes")

# What is the native OS API for MinGW?
AC_ARG_WITH(win32-nlsapi,
  AS_HELP_STRING([--with-win32-nlsapi=ansi or unicows or unicode],
                 [native MinGW libgcj Win32 OS API (default is ansi)]),
[case "${withval}" in
  ansi) with_win32_nlsapi=ansi ;;
  unicows) with_win32_nlsapi=unicows ;;
  unicode) with_win32_nlsapi=unicode ;;
  *) AC_MSG_ERROR(Bad value ${withval} for --with-win32-nlsapi.) ;;
esac],[with_win32_nlsapi=ansi])

case "${with_win32_nlsapi}" in
  unicows | unicode) 
    AC_DEFINE(MINGW_LIBGCJ_UNICODE, 1,
      [Define if MinGW libgcj uses the Windows UNICODE OS API.])
    ;;
esac

# configure.host sets slow_pthread_self if the synchronization code should 
# try to avoid pthread_self calls by caching thread IDs in a hashtable.
if test "${slow_pthread_self}" = "yes"; then
  AC_DEFINE(SLOW_PTHREAD_SELF, 1,
    [Define if if the synchronization code should try to avoid pthread_self calls by caching thread IDs in a hashtable.])
fi

# Check for gc debugging.  This option is handled both here and in the GC.
AC_ARG_ENABLE(gc-debug,
   AS_HELP_STRING([--enable-gc-debug],
		  [include full support for pointer backtracing etc.]),
[ if test "$enable_gc_debug" = "yes"; then
    AC_DEFINE(LIBGCJ_GC_DEBUG, 1, 
	      [Define if we want to use debug calls into the garbage collector.])
  fi])

# See if the user has the interpreter included.
AC_ARG_ENABLE(interpreter,
  AS_HELP_STRING([--enable-interpreter],
                 [enable interpreter]),
  [if test "$enable_interpreter" = yes; then
    # This can also be set in configure.host.
    libgcj_interpreter=yes
  elif test "$enable_interpreter" = no; then
    libgcj_interpreter=no
  fi])

if test "$libgcj_interpreter" = yes; then
   AC_DEFINE(INTERPRETER, 1, [Define if you want a bytecode interpreter.])
fi
INTERPRETER="$libgcj_interpreter"
AC_SUBST(INTERPRETER)
AM_CONDITIONAL(INTERPRETER, test "$libgcj_interpreter" = yes)

# If we are not using SJLJ exceptions, and this host does not have support 
# for unwinding from a signal handler, enable checked dereferences and divides.
GCC_CHECK_SJLJ_EXCEPTIONS
if test $ac_cv_sjlj_exceptions = no && test $can_unwind_signal = no; then
  CHECKREFSPEC=-fcheck-references
  DIVIDESPEC=-fuse-divide-subroutine
  EXCEPTIONSPEC=
fi

# See if the user wants to disable java.net.  This is the mildly
# ugly way that we admit that target-side configuration sucks.
AC_ARG_ENABLE(java-net,
  AS_HELP_STRING([--disable-java-net],
                 [disable java.net]))

# Whether java.net is built by default can depend on the target.
if test -z "$enable_java_net"; then
   enable_java_net=${enable_java_net_default-yes}
fi
if test "$enable_java_net" = no; then
   AC_DEFINE(DISABLE_JAVA_NET, 1, [Define if java.net native functions should be stubbed out.])
fi

# See if the user wants to configure without libffi.  Some
# architectures don't support it, and default values are set in 
# configure.host.
AC_ARG_WITH(libffi,
  AS_HELP_STRING([--without-libffi],
                 [don't use libffi]),
  [:],
  [with_libffi=${with_libffi_default-yes}])

LIBFFI=
LIBFFIINCS=
if test "$with_libffi" != no; then
   AC_DEFINE(USE_LIBFFI, 1, [Define if we're to use libffi.])
   LIBFFI=../libffi/libffi_convenience.la
   LIBFFIINCS='-I$(top_srcdir)/../libffi/include -I../libffi/include'
fi
AC_SUBST(LIBFFI)
AC_SUBST(LIBFFIINCS)

# See if the user wants to disable JVMPI support.
AC_ARG_ENABLE(jvmpi,
  AS_HELP_STRING([--disable-jvmpi],
                 [disable JVMPI support]))

if test "$enable_jvmpi" != no; then
    AC_DEFINE(ENABLE_JVMPI, 1, [Define if you are using JVMPI.])
fi

# If the target is an eCos system, use the appropriate eCos
# I/O routines.
# FIXME: this should not be a local option but a global target
# system; at present there is no eCos target.
TARGET_ECOS=${PROCESS-"no"}
AC_ARG_WITH(ecos,
[  --with-ecos             enable runtime eCos target support],
TARGET_ECOS="$with_ecos"
)

case "$TARGET_ECOS" in
   no) case "$host" in
      *mingw*)
            PLATFORM=Win32
	    PLATFORMNET=Win32
	    PLATFORMH=win32.h
        CHECK_FOR_BROKEN_MINGW_LD
      ;;
      *)
            PLATFORM=Posix
	    PLATFORMNET=Posix
	    PLATFORMH=posix.h
      ;;
      esac
      ;;
   *)
      PLATFORM=Ecos
      PLATFORMNET=NoNet
      AC_DEFINE(ECOS, 1, [Define if you're running eCos.])
      PLATFORMH=posix.h
      ;;
esac
AC_SUBST(PLATFORM)
AC_CONFIG_LINKS(include/platform.h:include/$PLATFORMH)

AC_EGREP_HEADER(uint32_t, stdint.h, AC_DEFINE(HAVE_INT32_DEFINED, 1,
                                      [Define if you have int32_t and uint32_t.]))
AC_EGREP_HEADER(uint32_t, inttypes.h, AC_DEFINE(HAVE_INT32_DEFINED, 1,
                                        [Define if you have int32_t and uint32_t.]))
AC_EGREP_HEADER(u_int32_t, sys/types.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED, 1,
                                          [Define if you have u_int32_t]))
AC_EGREP_HEADER(u_int32_t, sys/config.h, AC_DEFINE(HAVE_BSD_INT32_DEFINED, 1,
                                           [Define if you have u_int32_t]))

AM_CONDITIONAL(USING_WIN32_PLATFORM, test "$PLATFORM" = Win32)
AM_CONDITIONAL(USING_POSIX_PLATFORM, test "$PLATFORM" = Posix || test "$PLATFORM" = Ecos)

case "$host" in
  *-darwin*) DARWIN_CRT=true ;;
  *) DARWIN_CRT=false ;;
esac
AM_CONDITIONAL(USING_DARWIN_CRT, $DARWIN_CRT)

# This may not be defined in a non-ANS conformant embedded system.
# FIXME: Should these case a runtime exception in that case?
AC_EGREP_HEADER(localtime, time.h, AC_DEFINE(HAVE_LOCALTIME, 1,
                                  [Define is you have 'localtime' in <time.h>]))

# Create the subdirectory for natFile.cc, or the attempt
# to create the link will fail.
test -d java || mkdir java
test -d java/io || mkdir java/io
test -d gnu || mkdir gnu
AC_CONFIG_LINKS(java/io/natFile.cc:java/io/natFile${FILE-${PLATFORM}}.cc)

# Likewise for natConcreteProcess.cc.
test -d java/lang || mkdir java/lang
AC_CONFIG_LINKS(java/lang/natConcreteProcess.cc:java/lang/nat${PLATFORM}Process.cc)

# Likewise for natVMInetAddress.cc and natVMNetworkInterface.cc.
test -d java/net || mkdir java/net
AC_CONFIG_LINKS(java/net/natVMInetAddress.cc:java/net/natVMInetAddress${PLATFORMNET}.cc)
AC_CONFIG_LINKS(java/net/natVMNetworkInterface.cc:java/net/natVMNetworkInterface${PLATFORMNET}.cc)

# Likewise for natPlainSocketImpl.cc and natPlainDatagramSocketImpl.cc.
test -d gnu/java || mkdir gnu/java
test -d gnu/java/net || mkdir gnu/java/net
AC_CONFIG_LINKS(gnu/java/net/natPlainSocketImpl.cc:gnu/java/net/natPlainSocketImpl${PLATFORMNET}.cc)
AC_CONFIG_LINKS(gnu/java/net/natPlainDatagramSocketImpl.cc:gnu/java/net/natPlainDatagramSocketImpl${PLATFORMNET}.cc)

# Likewise for natVMPipe.cc and natVMSelector.cc.
test -d gnu/java/nio || mkdir gnu/java/nio
AC_CONFIG_LINKS(gnu/java/nio/natVMPipe.cc:gnu/java/nio/natVMPipe${PLATFORM}.cc)
AC_CONFIG_LINKS(gnu/java/nio/natVMSelector.cc:gnu/java/nio/natVMSelector${PLATFORM}.cc)

# Likewise for natFileChannelImpl.cc
test -d gnu/java/nio/channels || mkdir gnu/java/nio/channels
AC_CONFIG_LINKS(gnu/java/nio/channels/natFileChannelImpl.cc:gnu/java/nio/channels/natFileChannel${FILE-${PLATFORM}}.cc)

# Likewise for natVMSecureRandom.cc
test -d gnu/java/security || mkdir gnu/java/security
test -d gnu/java/security/jce || mkdir gnu/java/security/jce
test -d gnu/java/security/jce/prng || mkdir gnu/java/security/jce/prng
AC_CONFIG_LINKS(gnu/java/security/jce/prng/natVMSecureRandom.cc:gnu/java/security/jce/prng/natVMSecureRandom${FILE-${PLATFORM}}.cc)

case "${host}" in
    *mingw*)
      SYSTEMSPEC="-lgdi32 -lws2_32"
      if test "${with_win32_nlsapi}" = "unicows"; then
        SYSTEMSPEC="-lunicows $SYSTEMSPEC"
      fi
    ;;
    *-*-darwin[[912]]*)
      SYSTEMSPEC="%{!Zdynamiclib:%{!Zbundle:-allow_stack_execute}}"
    ;;
    *)
      SYSTEMSPEC=
    ;;
esac
AC_SUBST(SYSTEMSPEC)

AC_ARG_WITH(system-zlib,
  AS_HELP_STRING([--with-system-zlib],
                 [use installed libz]))
ZLIBSPEC=
AC_SUBST(ZLIBSPEC)
ZLIBTESTSPEC=
AC_SUBST(ZLIBTESTSPEC)

AC_PATH_XTRA

# FIXME: this should be _libs on some hosts.
libsubdir=.libs

LIBGCJTESTSPEC="-L`${PWDCMD-pwd}`/.libs -rpath `${PWDCMD-pwd}`/.libs"

LIBSTDCXXSPEC=
# extra LD Flags which are required for targets
case "${host}" in
*-*-darwin[[0-7]].*)
    # For now we have to disable it on darwin[8-9] because it slows down
    # the linking phase. A possible bug in ld?
    # on Darwin -single_module speeds up loading of the dynamic libraries.
    extra_ldflags_libjava=-Wl,-single_module
    ;;
arm*-*-linux-*)
    # Some of the ARM unwinder code is actually in libstdc++.  We
    # could in principle replicate it in libgcj, but it's better to
    # have a dependency on libstdc++.
    extra_ldflags='-L$(here)/../libstdc++-v3/src/.libs -lstdc++'
    LIBSTDCXXSPEC=-lstdc++
    LIBGCJTESTSPEC="-L`${PWDCMD-pwd}`/.libs -L`${PWDCMD-pwd}`/../libstdc++-v3/src/.libs -rpath `${PWDCMD-pwd}`/.libs:`${PWDCMD-pwd}`/../libstdc++-v3/src/.libs -lstdc++"
    ;;
*-*-cygwin)
    extra_ldflags_libjava=-liconv
    ;;
*-*-mingw*)
    extra_ldflags_libjava=-lws2_32
    ;;
esac

LIBMATHSPEC=
# extra LD Flags which are required for targets
case "${host}" in
*-*-darwin*)
     ;;
*)
     LIBMATHSPEC=-lm
     ;;
esac

# Check for --no-merge-exidx-entries, an ARM-specific linker option.
AC_CACHE_CHECK([for --no-merge-exidx-entries], [libgcj_cv_exidx],
  [saved_ldflags="$LDFLAGS"
   LDFLAGS="${LDFLAGS} -Wl,--no-merge-exidx-entries"
   AC_LINK_IFELSE([int main(void){ return 0;} ],
		      [eval "libgcj_cv_exidx=yes"],
		      [eval "libgcj_cv_exidx=no"])
   LDFLAGS="${saved_ldflags}"]
)
if test "${libgcj_cv_exidx}" = "yes"; then
  SYSTEMSPEC="${SYSTEMSPEC} --no-merge-exidx-entries"
  extra_ldflags="${extra_ldflags} -Wl,--no-merge-exidx-entries"
fi   

AC_SUBST(extra_ldflags_libjava)
AC_SUBST(extra_ldflags)
AC_SUBST(LIBSTDCXXSPEC)
AC_SUBST(LIBMATHSPEC)

AC_SUBST(LIBGCJTESTSPEC)

# Allow the GC to be disabled.  Can be useful when debugging.
AC_MSG_CHECKING([for garbage collector to use])
AC_ARG_ENABLE(java-gc,
  AS_HELP_STRING([--enable-java-gc=TYPE],
                 [choose garbage collector (default is boehm)]),
  [GC=$enableval],
  [GC=boehm])
GCLIBS=
GCINCS=
GCDEPS=
GCSPEC=
JC1GCSPEC=
GCTESTSPEC=
case "$GC" in
 boehm)
    AC_MSG_RESULT(boehm)
    GCLIBS=../boehm-gc/libgcjgc_convenience.la
    JC1GCSPEC='-fuse-boehm-gc'
    GCTESTSPEC="-L`${PWDCMD-pwd}`/../boehm-gc/.libs -rpath `${PWDCMD-pwd}`/../boehm-gc/.libs"
    GCINCS='-I$(top_srcdir)/../boehm-gc/include -I../boehm-gc/include'
    GCOBJS=boehm.lo    
    GCHDR=boehm-gc.h
    # The POSIX thread support needs to know this.
    AC_DEFINE(HAVE_BOEHM_GC, 1, [Define if Boehm GC in use.])
    ;;
 no)
    AC_MSG_RESULT(none)
    GCHDR=no-gc.h
    ;;
 *)
    AC_MSG_ERROR([unrecognized collector "$GC"])
    ;;
esac
AC_SUBST(GCLIBS)
AC_SUBST(GCINCS)
AC_SUBST(GCDEPS)
AC_SUBST(GCSPEC)
AC_SUBST(JC1GCSPEC)
AC_SUBST(GCTESTSPEC)
AC_CONFIG_LINKS(include/java-gc.h:include/$GCHDR)
AM_CONDITIONAL(USING_BOEHMGC, test "$GC" = boehm)
AM_CONDITIONAL(USING_NOGC, test "$GC" = no)


AC_MSG_CHECKING([for thread model used by GCC])
THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
AC_MSG_RESULT([$THREADS])

case "$THREADS" in
 no | none | single)
    THREADS=none
    ;;
 aix | posix | pthreads)
    THREADS=posix
    case "$host" in
     *-*-linux*)
	AC_DEFINE(LINUX_THREADS, 1, [Define if using POSIX threads on Linux.])
	;;
    esac
    ;;
 win32)
    ;;
 dce | vxworks)
    AC_MSG_ERROR(thread package $THREADS not yet supported)
    ;;
 *)
    AC_MSG_ERROR($THREADS is an unknown thread package)
    ;;
esac

THREADCXXFLAGS=
THREADLDFLAGS=
THREADLIBS=
THREADINCS=
THREADDEPS=
THREADH=
THREADSPEC=
THREADSTARTFILESPEC=
case "$THREADS" in
 posix)
    case "$host" in
     *-*-cygwin*)
	# Don't set THREADLIBS here.  Cygwin doesn't have -lpthread.
	;;
     *-*-freebsd[[34]].*)
	# Before FreeBSD 5, it didn't have -lpthread (or any library which
	# merely adds pthread_* functions) but it does have a -pthread switch
	# which is required at link-time to select -lc_r *instead* of -lc.
	THREADLDFLAGS=-pthread
	# Don't set THREADSPEC here as might be expected since -pthread is
	# not processed when found within a spec file, it must come from
	# the command line.  For now, the user must provide the -pthread
	# switch to link code compiled with gcj.  In future, consider adding
	# support for weak references to pthread_* functions ala gthr.h API.
	THREADSPEC='%{!pthread: %{!shared: %eUnder this configuration, the user must provide -pthread when linking.}}'
	;;
     *-*-freebsd*)
	# FreeBSD >=5.3 implements a model much closer to other modern UNIX
	# systems which support threads and -lpthread.
	THREADLDFLAGS=-pthread
	THREADSPEC=-lpthread
	;;
     hppa*-hp-hpux*)
	THREADCXXFLAGS=-pthread
	# boehm-gc needs some functions from librt, so link that too.
	THREADLIBS='-lpthread -lrt'
	THREADSPEC='-lpthread -lrt'
	;;
     *-*-darwin*)
	# Don't set THREADLIBS or THREADSPEC as Darwin already
	# provides pthread via libSystem.
	;;
     *)
	THREADLIBS=-lpthread
	THREADSPEC=-lpthread
	;;
    esac
    THREADH=posix-threads.h
    # MIT pthreads doesn't seem to have the mutexattr functions.
    # But for now we don't check for it.  We just assume you aren't
    # using MIT pthreads.
    AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT, 1, [Define if using POSIX threads that have the mutexattr functions.])

    # If we're using the Boehm GC, then we happen to know that it
    # defines _REENTRANT, so we don't bother.  Eww.
    if test "$GC" != boehm; then
       AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
    fi
    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1, [Required define if using POSIX threads])
    ;;

 win32)
    THREADH=win32-threads.h
    THREADCXXFLAGS=-mthreads
    # We need thread-safe exception handling so _CRT_MT should be set to 1.
    # But we do not want the executables created to be dependent on
    # mingwm10.dll which provides a __mingwthr_key_dtor() that cleans up
    # exception handling contexts.  The following kludge achieves this effect
    # and causes a dummy __mingwthr_key_dtor() to be linked in from
    # libmingw32.a.  This causes a memory leak of about 24 bytes per thread.
    # A workaround is to explicitly use -mthreads while linking Java programs.
    # See PR libgcj/28263.
    #
    # FIXME: In Java we are able to detect thread death at the end of
    # Thread.run() so we should be able to clean up the exception handling
    # contexts ourselves.
    case "$host" in
    *-w64-mingw*)
      ;;
    *)
      THREADSTARTFILESPEC='crtmt%O%s'
      ;;
    esac
    ;;
 none)
    THREADH=no-threads.h
    ;;
esac
AC_CONFIG_LINKS(include/java-threads.h:include/$THREADH)
AC_SUBST(THREADLIBS)
AC_SUBST(THREADINCS)
AC_SUBST(THREADDEPS)
AC_SUBST(THREADSPEC)
AC_SUBST(THREADSTARTFILESPEC)
AC_SUBST(THREADLDFLAGS)
AC_SUBST(THREADCXXFLAGS)
AM_CONDITIONAL(USING_POSIX_THREADS, test "$THREADS" = posix)
AM_CONDITIONAL(USING_WIN32_THREADS, test "$THREADS" = win32)
AM_CONDITIONAL(USING_NO_THREADS, test "$THREADS" = none)
if test "$enable_shared" != yes; then
  use_libgcj_bc=no
fi
AM_CONDITIONAL(USE_LIBGCJ_BC, test "$use_libgcj_bc" = yes)

if test -d sysdep; then true; else mkdir sysdep; fi
AC_CONFIG_LINKS(sysdep/locks.h:sysdep/$sysdeps_dir/locks.h)
AC_CONFIG_LINKS(sysdep/backtrace.h:$fallback_backtrace_h)
AC_CONFIG_LINKS(sysdep/descriptor.h:$descriptor_h)

LIBGCJ_SPEC_LGCJ=-lgcj
LIBGCJ_SPEC_LGCJ_BC=-lgcj_bc
if test x"$libgcj_spec_lgcj_override" != x ; then
  LIBGCJ_SPEC_LGCJ=$libgcj_spec_lgcj_override
fi
if test x"$libgcj_spec_lgcj_bc_override" != x ; then
  LIBGCJ_SPEC_LGCJ_BC=$libgcj_spec_lgcj_bc_override
fi
LIBGCJ_SPEC="%{s-bc-abi:} $LIBGCJ_SPEC_LGCJ"
if test "$use_libgcj_bc" = yes; then
  LIBGCJ_SPEC="%{static|static-libgcj|!s-bc-abi:$LIBGCJ_SPEC_LGCJ;:$LIBGCJ_SPEC_LGCJ_BC}"
  LIBGCJ_BC_SPEC="%{findirect-dispatch:-fPIC}"
fi
AC_SUBST(LIBGCJ_SPEC)
AC_SUBST(LIBGCJ_BC_SPEC)

HASH_SYNC_SPEC=
# Hash synchronization is only useful with posix threads right now.
if test "$enable_hash_synchronization" = yes && test "$THREADS" != "none"; then
   HASH_SYNC_SPEC=-fhash-synchronization
   AC_DEFINE(JV_HASH_SYNCHRONIZATION, 1, [Define if hash synchronization is in use])
fi
AC_SUBST(HASH_SYNC_SPEC)

AM_CONDITIONAL(USING_GCC, test "$GCC" = yes)

# We're in the tree with libgcc, and need to include some of its headers.
LIBGCC_UNWIND_INCLUDE='-I$(multi_basedir)/./libjava/../libgcc'

if test "x${with_newlib}" = "xyes"; then
   # We are being configured with a cross compiler.  AC_REPLACE_FUNCS
   # may not work correctly, because the compiler may not be able to
   # link executables.

   # We assume newlib.  This lets us hard-code the functions we know
   # we'll have.
   AC_DEFINE(HAVE_MEMMOVE, 1, [Define if you have memmove.])
   AC_DEFINE(HAVE_MEMCPY, 1, [Define if you have memcpy.])
   AC_DEFINE(HAVE_TIME, 1, [Define if you have time.])
   AC_DEFINE(HAVE_GMTIME_R, 1, [Define if you have the 'gmtime_r' function])
   AC_DEFINE(HAVE_LOCALTIME_R, 1, [Define if you have the 'localtime_r' function.])
   AC_DEFINE(HAVE_USLEEP_DECL, 1, [Define if usleep is declared in <unistd.h>.])
   # This is only for POSIX threads.
   AC_DEFINE(HAVE_PTHREAD_MUTEXATTR_INIT, 1, [Define if using POSIX threads that have the mutexattr functions.])

   # Assume we do not have getuid and friends.
   AC_DEFINE(NO_GETUID, 1, [Define if getuid() and friends are missing.])
   PLATFORMNET=NoNet
else
   AC_CHECK_FUNCS([strerror_r select fstat open fsync sleep opendir \
                   localtime_r getpwuid_r getcwd \
		   access stat lstat mkdir rename rmdir unlink utime chmod readlink \
		   nl_langinfo setlocale \
		   inet_pton uname inet_ntoa \
		   getrlimit sigaction ftruncate mmap \
		   getifaddrs])
   AC_CHECK_FUNCS(inet_aton inet_addr, break)
   AC_CHECK_HEADERS(unistd.h dlfcn.h sys/resource.h)
   # Do an additional check on dld, HP-UX for example has dladdr in libdld.sl
   AC_CHECK_LIB(dl, dladdr, [
       AC_DEFINE(HAVE_DLADDR, 1, [Define if you have dladdr()])], [
       AC_CHECK_LIB(dld, dladdr, [
       AC_DEFINE(HAVE_DLADDR, 1, [Define if you have dladdr()])])])

   if test x"$cross_compiling" = x"no"; then
     AC_CHECK_FILES(/proc/self/exe, [
       AC_DEFINE(HAVE_PROC_SELF_EXE, 1, [Define if you have /proc/self/exe])])
     AC_CHECK_FILES(/proc/self/maps, [
       AC_DEFINE(HAVE_PROC_SELF_MAPS, 1,
         [Define if you have /proc/self/maps])])
   else
     case $host in
     *-linux*)
       AC_DEFINE(HAVE_PROC_SELF_EXE, 1, [Define if you have /proc/self/exe])
       AC_DEFINE(HAVE_PROC_SELF_MAPS, 1, [Define if you have /proc/self/maps])
       ;;
     esac
   fi

   AM_ICONV
   AM_LC_MESSAGES
   AC_STRUCT_TIMEZONE
   LDLIBICONV=`echo " $LIBICONV " | sed "s/${acl_cv_wl--Wl,}/ /g; s/,/ /g"`
   AC_SUBST([LDLIBICONV])

   AC_CHECK_FUNCS(gethostbyname_r, [
     AC_DEFINE(HAVE_GETHOSTBYNAME_R, 1,
       [Define if you have the 'gethostbyname_r' function.])
     # There are two different kinds of gethostbyname_r.
     # We look for the one that returns `int'.
     # Hopefully this check is robust enough.
     AC_EGREP_HEADER(int.*gethostbyname_r, netdb.h, [
       AC_DEFINE(GETHOSTBYNAME_R_RETURNS_INT, 1, [Define if gethostbyname_r returns 'int'.])])

     case " $GCINCS " in
     *" -D_REENTRANT "*) ;;
     *)
	dnl On DU4.0, gethostbyname_r is only declared with -D_REENTRANT
	AC_CACHE_CHECK([whether gethostbyname_r declaration requires -D_REENTRANT],
	[libjava_cv_gethostbyname_r_needs_reentrant],
	[ AC_LANG_PUSH(C++)
	  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
	    [[gethostbyname_r("", 0, 0);]])],
	    [libjava_cv_gethostbyname_r_needs_reentrant=no], [dnl
		CPPFLAGS_SAVE="$CPPFLAGS"
		CPPFLAGS="$CPPFLAGS -D_REENTRANT"
		AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]], [[gethostbyname_r("", 0, 0);]])],
		    [libjava_cv_gethostbyname_r_needs_reentrant=yes],
		    [libjava_cv_gethostbyname_r_needs_reentrant=fail])
		CPPFLAGS="$CPPFLAGS_SAVE"
	  ])
	  AC_LANG_POP(C++)
	])
	if test "x$libjava_cv_gethostbyname_r_needs_reentrant" = xyes; then
	  AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
	fi
     ;;
     esac

     AC_CACHE_CHECK([for struct hostent_data],
	[libjava_cv_struct_hostent_data], [dnl
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#if GETHOSTBYNAME_R_NEEDS_REENTRANT && !defined(_REENTRANT)
# define _REENTRANT 1
#endif
#include <netdb.h>]], [[struct hostent_data data;]])],
	  [libjava_cv_struct_hostent_data=yes],
	  [libjava_cv_struct_hostent_data=no])])
     if test "x$libjava_cv_struct_hostent_data" = xyes; then
       AC_DEFINE(HAVE_STRUCT_HOSTENT_DATA, 1,
         [Define if struct hostent_data is defined in netdb.h])
     fi
   ])

   # FIXME: libjava source code expects to find a prototype for
   # gethostbyaddr_r in netdb.h.  The outer check ensures that
   # HAVE_GETHOSTBYADDR_R will not be defined if the prototype fails
   # to exist where expected.  (The root issue: AC_CHECK_FUNCS assumes C
   # linkage check is enough, yet C++ code requires proper prototypes.)
   AC_EGREP_HEADER(gethostbyaddr_r, netdb.h, [
   AC_CHECK_FUNCS(gethostbyaddr_r, [
     AC_DEFINE(HAVE_GETHOSTBYADDR_R, 1,
       [Define if you have the 'gethostbyaddr_r' function.])
     # There are two different kinds of gethostbyaddr_r.
     # We look for the one that returns `int'.
     # Hopefully this check is robust enough.
     AC_EGREP_HEADER(int.*gethostbyaddr_r, netdb.h, [
       AC_DEFINE(GETHOSTBYADDR_R_RETURNS_INT, 1,
         [Define if gethostbyaddr_r returns 'int'.])])])])

   AC_CHECK_FUNCS(gethostname, [
     AC_DEFINE(HAVE_GETHOSTNAME, 1,
       [Define if you have the 'gethostname' function.])
     AC_EGREP_HEADER(gethostname, unistd.h, [
       AC_DEFINE(HAVE_GETHOSTNAME_DECL, 1,
         [Define if gethostname is declared in <unistd.h>.])])])

   AC_CHECK_FUNCS(usleep, [
     AC_EGREP_HEADER(usleep, unistd.h, [
       AC_DEFINE(HAVE_USLEEP_DECL, 1,
          [Define if usleep is declared in <unistd.h>.])])])

   # Look for these functions in the thread library, but only bother
   # if using POSIX threads.
   if test "$THREADS" = posix; then
      save_LIBS="$LIBS"
      LIBS="$LIBS $THREADLIBS"

      # Look for sched_yield.  Up to Solaris 2.6, it is in libposix4, since
      # Solaris 7 the name librt is preferred.
      AC_CHECK_FUNCS(sched_yield, , [
	AC_CHECK_LIB(rt, sched_yield, [
	  AC_DEFINE(HAVE_SCHED_YIELD)
	  THREADLIBS="$THREADLIBS -lrt"
	  THREADSPEC="$THREADSPEC -lrt"], [
	  AC_CHECK_LIB(posix4, sched_yield, [
	    AC_DEFINE(HAVE_SCHED_YIELD)
	    THREADLIBS="$THREADLIBS -lposix4"
	    THREADSPEC="$THREADSPEC -lposix4"])])])

      AC_CHECK_LIB(rt, clock_gettime, [
         AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [Define if you have clock_gettime()])
	 case "$THREADSPEC" in
	   *-lrt*) ;;
	   *)
 	     THREADSPEC="$THREADSPEC -lrt"
	     THREADLIBS="$THREADLIBS -lrt"
	     ;;
	 esac])

      LIBS="$save_LIBS"

      # We can save a little space at runtime if the mutex has m_count
      # or __m_count.  This is a nice hack for Linux.
      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]], [[
          extern pthread_mutex_t *mutex; int q = mutex->m_count;
        ]])], AC_DEFINE(PTHREAD_MUTEX_HAVE_M_COUNT, 1,
             [Define if pthread_mutex_t has m_count member.]), [
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]], [[
	    extern pthread_mutex_t *mutex; int q = mutex->__m_count;
	  ]])], AC_DEFINE(PTHREAD_MUTEX_HAVE___M_COUNT, 1,
            [Define if pthread_mutex_t has __m_count member.]))])
   fi

   # We require a way to get the time.
   time_found=no
   AC_CHECK_FUNCS(gettimeofday time ftime, time_found=yes)
   if test "$time_found" = no; then
      AC_MSG_ERROR([no function found to get the time])
   fi

   AC_CHECK_FUNCS(memmove)

   # We require memcpy.
   memcpy_found=no
   AC_CHECK_FUNCS(memcpy, memcpy_found=yes)
   if test "$memcpy_found" = no; then
      AC_MSG_ERROR([memcpy is required])
   fi
   # Do an additional check on dld, HP-UX for example has dlopen in libdld.sl
   AC_CHECK_LIB(dl, dlopen, [
       AC_DEFINE(HAVE_DLOPEN, 1, [Define if dlopen is available])], [
       AC_CHECK_LIB(dld, dlopen, [
       AC_DEFINE(HAVE_DLOPEN, 1, [Define if dlopen is available])])])

   # Some library-finding code we stole from Tcl.
   #--------------------------------------------------------------------
   #	Check for the existence of the -lsocket and -lnsl libraries.
   #	The order here is important, so that they end up in the right
   #	order in the command line generated by make.  Here are some
   #	special considerations:
   #	1. Use "connect" and "accept" to check for -lsocket, and
   #	   "gethostbyname" to check for -lnsl.
   #	2. Use each function name only once:  can't redo a check because
   #	   autoconf caches the results of the last check and won't redo it.
   #	3. Use -lnsl and -lsocket only if they supply procedures that
   #	   aren't already present in the normal libraries.  This is because
   #	   IRIX 5.2 has libraries, but they aren't needed and they're
   #	   bogus:  they goof up name resolution if used.
   #	4. On some SVR4 systems, can't use -lsocket without -lnsl too.
   #	   To get around this problem, check for both libraries together
   #	   if -lsocket doesn't work by itself.
   #--------------------------------------------------------------------

   AC_CACHE_CHECK([for socket libraries], gcj_cv_lib_sockets,
    [gcj_cv_lib_sockets=
     gcj_checkBoth=0
     unset ac_cv_func_connect
     AC_CHECK_FUNC(connect, gcj_checkSocket=0, gcj_checkSocket=1)
     if test "$gcj_checkSocket" = 1; then
	 unset ac_cv_func_connect
	 AC_CHECK_LIB(socket, main, gcj_cv_lib_sockets="-lsocket",
		      gcj_checkBoth=1)
     fi
     if test "$gcj_checkBoth" = 1; then
	 gcj_oldLibs=$LIBS
	 LIBS="$LIBS -lsocket -lnsl"
	 unset ac_cv_func_accept
	 AC_CHECK_FUNC(accept,
		       [gcj_checkNsl=0
			gcj_cv_lib_sockets="-lsocket -lnsl"])
	 unset ac_cv_func_accept
	 LIBS=$gcj_oldLibs
     fi
     unset ac_cv_func_gethostbyname
     gcj_oldLibs=$LIBS
     LIBS="$LIBS $gcj_cv_lib_sockets"
     AC_CHECK_FUNC(gethostbyname, ,
		   [AC_CHECK_LIB(nsl, main,
				 [gcj_cv_lib_sockets="$gcj_cv_lib_sockets -lnsl"])])
     unset ac_cv_func_gethostbyname
     LIBS=$gcj_oldLIBS
   ])
   SYSTEMSPEC="$SYSTEMSPEC $gcj_cv_lib_sockets"

   if test "$with_system_zlib" = yes; then
      AC_CHECK_LIB(z, deflate, ZLIBSPEC=-lz, ZLIBSPEC=)
   fi

   # Test for Gtk stuff, if asked for.
   if test "$use_gtk_awt" = yes; then
      PKG_CHECK_MODULES(GTK, gtk+-2.0 >= 2.4)
      AC_SUBST(GTK_CFLAGS)
      AC_SUBST(GTK_LIBS)

      PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.4 gthread-2.0 >= 2.4)
      AC_SUBST(GLIB_CFLAGS)
      AC_SUBST(GLIB_LIBS)

      PKG_CHECK_MODULES(LIBART, libart-2.0 >= 2.1)
      AC_SUBST(LIBART_CFLAGS)
      AC_SUBST(LIBART_LIBS)

      # We require the XTest Extension to support java.awt.Robot.
      AC_CHECK_LIB([Xtst], [XTestQueryExtension], [true],
		   [AC_MSG_ERROR([libXtst not found, required by java.awt.Robot])],
		   [${X_LIBS}])
   fi

   # On Solaris, and maybe other architectures, the Boehm collector
   # requires -ldl.
   if test "$GC" = boehm; then
      case "${host}" in
	  *-*-darwin*)
	    ;;
	  *)
            AC_CHECK_LIB(dl, main, SYSTEMSPEC="$SYSTEMSPEC -ldl")
	    ;;
      esac
   fi
fi

# Use a semicolon as CLASSPATH separator for MinGW, otherwise a colon.
case $build in
    *-mingw32) CLASSPATH_SEPARATOR=';' ;;
    *)         CLASSPATH_SEPARATOR=':' ;;
esac
AC_SUBST(CLASSPATH_SEPARATOR)

# We must search the source tree for java.lang, since we still don't
# have libgcj.jar nor java/lang/*.class
GCJ_SAVE_CPPFLAGS=$CPPFLAGS
CPPFLAGS="$CPPFLAGS -I`${PWDCMD-pwd}` -I`cd $srcdir && ${PWDCMD-pwd}`"

# Since some classes depend on this one, we need its source available
# before we can do any GCJ compilation test :-(
if test ! -f gnu/classpath/Configuration.java; then
  test -d gnu || mkdir gnu
  test -d gnu/classpath || mkdir gnu/classpath
  # Note that it is not crucial that all the values here be correct.
  sed -e "s,@prefix@,$expanded_prefix," \
      -e "s,@VERSION@,$VERSION," \
      -e "s,@LIBDEBUG@,false," \
      -e "s,@INIT_LOAD_LIBRARY@,false," \
      -e "s,@@,$LIBGCJDEBUG," \
      -e "s,@default_toolkit@,$TOOLKIT," \
      -e "s,@JAVA_LANG_SYSTEM_EXPLICIT_INITIALIZATION@,false," \
      -e "s,@GTK_CAIRO_ENABLED@,false," \
      -e "s,@ECJ_JAR@,," \
      -e "s,@WANT_NATIVE_BIG_INTEGER@,false," \
	< $srcdir/classpath/gnu/classpath/Configuration.java.in \
	> gnu/classpath/Configuration.java
  # We do not want to redirect the output of the grep below to /dev/null,
  # but we add /dev/null to the input list so that grep will print the
  # filename of Configuration.java in case it finds any matches.
  if grep '@.*@' gnu/classpath/Configuration.java /dev/null; then
    AC_MSG_ERROR([configure.ac is missing the substitutions above])
  fi
fi

LT_AC_PROG_GCJ

# Now remove it.
rm -f gnu/classpath/Configuration.java

CPPFLAGS=$GCJ_SAVE_CPPFLAGS

AC_CHECK_SIZEOF(void *)

AC_C_BIGENDIAN

ZLIBS=
SYS_ZLIBS=
ZINCS=

if test -z "$ZLIBSPEC"; then
   # Use zlib from the GCC tree.
   ZINCS='-I$(top_srcdir)/../zlib'
   ZLIBS=../zlib/libzgcj_convenience.la
else
   # System's zlib.
   SYS_ZLIBS="$ZLIBSPEC"
fi
AC_SUBST(ZLIBS)
AC_SUBST(SYS_ZLIBS)
AC_SUBST(ZINCS)
AC_SUBST(DIVIDESPEC)
AC_SUBST(CHECKREFSPEC)
AC_SUBST(EXCEPTIONSPEC)
AC_SUBST(BACKTRACESPEC)
AC_SUBST(IEEESPEC)
AC_SUBST(ATOMICSPEC)

AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes)
AM_CONDITIONAL(ENABLE_SHARED, test "$enable_shared" = yes)
AM_CONDITIONAL(NEEDS_DATA_START, test "$NEEDS_DATA_START" = yes && test "$NATIVE" = yes)
AM_CONDITIONAL(INSTALL_BINARIES, test -z "${with_multisubdir}")
AC_SUBST(LIBGCC_UNWIND_INCLUDE)

# Process the option "--enable-version-specific-runtime-libs"
# Calculate toolexeclibdir
case ${version_specific_libs} in
  yes)
    # Need the gcc compiler version to know where to install libraries
    # and header files if --enable-version-specific-runtime-libs option
    # is selected.
    includedir='$(libdir)/gcc/$(target_noncanonical)/$(gcc_version)/include/'
    toolexecdir='$(libdir)/gcc/$(target_noncanonical)'
    toolexecmainlibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
    toolexeclibdir=$toolexecmainlibdir
    ;;
  no)
    if test -n "$with_cross_host" &&
       test x"$with_cross_host" != x"no"; then
      # Install a library built with a cross compiler in tooldir, not libdir.
      toolexecdir='$(exec_prefix)/$(target_noncanonical)'
      toolexecmainlibdir='$(toolexecdir)/lib'
    else
      toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'
      toolexecmainlibdir='$(libdir)'
    fi
    multi_os_directory=`$CC -print-multi-os-directory`
    case $multi_os_directory in
      .) toolexeclibdir=$toolexecmainlibdir ;; # Avoid trailing /.
      *) toolexeclibdir=$toolexecmainlibdir/$multi_os_directory ;;
    esac
    ;;
esac
AC_SUBST(toolexecdir)
AC_SUBST(toolexecmainlibdir)
AC_SUBST(toolexeclibdir)

# Determine gcj and libgcj version number.
gcjversion=`cat "$srcdir/../gcc/BASE-VER"`
libgcj_soversion=`awk -F: '/^[[^#]].*:/ { print $1 }' $srcdir/libtool-version`
GCJVERSION=$gcjversion
AC_SUBST(GCJVERSION)
AC_DEFINE_UNQUOTED(GCJVERSION, "$GCJVERSION", [Short GCJ version ID])

# Determine where the standard .db file and GNU Classpath JNI
# libraries are found.
gcjsubdir=gcj-$gcjversion-$libgcj_soversion
dbexecdir='$(toolexeclibdir)/'$gcjsubdir
AC_SUBST(dbexecdir)
AC_SUBST(gcjsubdir)

AC_DEFINE(JV_VERSION, "1.5.0", [Compatibility version string])
AC_DEFINE(JV_API_VERSION, "1.5", [API compatibility version string])

TL_AC_GXX_INCLUDE_DIR

# We check for sys/filio.h because Solaris 2.5 defines FIONREAD there.
# On that system, sys/ioctl.h will not include sys/filio.h unless
# BSD_COMP is defined; just including sys/filio.h is simpler.
# We avoid AC_HEADER_DIRENT since we really only care about dirent.h
# for now.  If you change this, you also must update natFile.cc.
AC_CHECK_HEADERS([unistd.h sys/time.h sys/types.h fcntl.h \
		  sys/ioctl.h sys/filio.h sys/stat.h sys/select.h \
		  sys/socket.h netinet/in.h arpa/inet.h netdb.h \
		  pwd.h sys/config.h stdint.h langinfo.h locale.h \
		  dirent.h sys/rw_lock.h magic.h ifaddrs.h])

# sys/socket.h is a prerequisite for net/if.h on Solaris.
AC_CHECK_HEADERS(net/if.h, [], [], [
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])

AC_CHECK_HEADERS(inttypes.h, [
    AC_DEFINE(HAVE_INTTYPES_H, 1, [Define if <inttypes.h> is available])
    AC_DEFINE(JV_HAVE_INTTYPES_H, 1, [Define if <inttypes.h> is available])
])

AC_CHECK_TYPE([ssize_t], [int])
AC_CHECK_TYPE([magic_t], [
    AC_DEFINE(HAVE_MAGIC_T, 1, [Define if magic.h declares magic_t])], [], [
#ifdef HAVE_MAGIC_H
#include <magic.h>
#endif])

AC_MSG_CHECKING([for in_addr_t])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
#endif
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif]], [[in_addr_t foo;]])],
  [AC_DEFINE(HAVE_IN_ADDR_T, 1,
     [Define to 1 if 'in_addr_t' is defined in sys/types.h or netinet/in.h.])
   AC_MSG_RESULT(yes)],
  [AC_MSG_RESULT(no)])

AC_MSG_CHECKING([whether struct ip_mreq is in netinet/in.h])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>]], [[struct ip_mreq mreq;]])],
  [AC_DEFINE(HAVE_STRUCT_IP_MREQ, 1,
     [Define if struct ip_mreq is defined in netinet/in.h.])
   AC_MSG_RESULT(yes)],
  [AC_MSG_RESULT(no)])

AC_MSG_CHECKING([whether struct ipv6_mreq is in netinet/in.h])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>]], [[struct ipv6_mreq mreq6;]])],
  [AC_DEFINE(HAVE_STRUCT_IPV6_MREQ, 1,
     [Define if struct ipv6_mreq is defined in netinet/in.h.])
   AC_MSG_RESULT(yes)],
  [AC_MSG_RESULT(no)])

AC_MSG_CHECKING([whether struct sockaddr_in6 is in netinet/in.h])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>]], [[struct sockaddr_in6 addr6;]])],
  [AC_DEFINE(HAVE_INET6, 1,
     [Define if inet6 structures are defined in netinet/in.h.])
   AC_MSG_RESULT(yes)],
  [AC_MSG_RESULT(no)])

AC_MSG_CHECKING([for socklen_t in sys/socket.h])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#define _POSIX_PII_SOCKET
#include <sys/types.h>
#include <sys/socket.h>]], [[socklen_t x = 5;]])],
  [AC_DEFINE(HAVE_SOCKLEN_T, 1, [Define it socklen_t typedef is in sys/socket.h.])
   AC_MSG_RESULT(yes)],
  [AC_MSG_RESULT(no)])

AC_MSG_CHECKING([for tm_gmtoff in struct tm])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]], [[struct tm tim; tim.tm_gmtoff = 0;]])],
  [AC_DEFINE(STRUCT_TM_HAS_GMTOFF, 1, [Define if struct tm has tm_gmtoff field.])
   AC_MSG_RESULT(yes)],
  [AC_MSG_RESULT(no)
   AC_MSG_CHECKING([for global timezone variable])
   dnl FIXME: we don't want a link check here because that won't work
   dnl when cross-compiling.  So instead we make an assumption that
   dnl the header file will mention timezone if it exists.
   dnl Don't find the win32 function timezone
   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]], [[void i(){long z2 = 2*timezone;}]])],
     [AC_DEFINE(HAVE_TIMEZONE, 1, [Define if global 'timezone' exists.])
      AC_MSG_RESULT(yes)],
     [AC_MSG_RESULT(no)
       AC_MSG_CHECKING([for global _timezone variable])
       dnl FIXME: As above, don't want link check
       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]], [[long z2 = _timezone;]])],
         [AC_DEFINE(HAVE_UNDERSCORE_TIMEZONE, 1,
            [Define if your platform has the global _timezone variable.])
          AC_MSG_RESULT(yes)],
          [AC_MSG_RESULT(no)])])])

AC_CHECK_PROGS(PERL, perl, false)

SYSDEP_SOURCES=
SIGNAL_HANDLER_AUX=

case "${host}" in
 *-*-solaris2*)
    SIGNAL_HANDLER=include/posix-signal.h
    ;;
 i?86-*-linux*)
    SIGNAL_HANDLER=include/i386-signal.h
    SIGNAL_HANDLER_AUX=include/x86_64-signal.h
    ;;
# ia64-*)
#    SYSDEP_SOURCES=sysdep/ia64.c
#    test -d sysdep || mkdir sysdep
#    ;;
 hppa*-*-linux*)
    SIGNAL_HANDLER=include/pa-signal.h
    ;;
 hppa*-hp-hpux*)
    SIGNAL_HANDLER=include/hppa-signal.h
    ;;
 ia64-*-linux*)
    SIGNAL_HANDLER=include/dwarf2-signal.h
    ;;
 powerpc*-*-linux*)
    SIGNAL_HANDLER=include/powerpc-signal.h
    ;;
 alpha*-*-linux*)
    SIGNAL_HANDLER=include/dwarf2-signal.h
    ;;
 s390*-*-linux*)
    SIGNAL_HANDLER=include/s390-signal.h
    ;;
 x86_64*-*-linux*)
    SIGNAL_HANDLER=include/x86_64-signal.h
    SIGNAL_HANDLER_AUX=include/i386-signal.h
    ;;
 sparc*-*-linux*)
    SIGNAL_HANDLER=include/dwarf2-signal.h
    ;;
 sh*-*-linux*)
    SIGNAL_HANDLER=include/sh-signal.h
    ;;
 *mingw*)
    SIGNAL_HANDLER=include/win32-signal.h
    ;;
 mips*-*-linux*)
    SIGNAL_HANDLER=include/mips-signal.h
    ;;
 m68*-*-linux*)
    SIGNAL_HANDLER=include/dwarf2-signal.h
    ;;
 powerpc*-*-darwin* | i?86-*-darwin[[912]]* | x86_64-*-darwin[[912]]*)
    SIGNAL_HANDLER=include/darwin-signal.h
    ;;
 powerpc*-*-aix*)
    SIGNAL_HANDLER=include/aix-signal.h
    ;;
 i?86-*-freebsd* | x86_64-*-freebsd*)
    SIGNAL_HANDLER=include/freebsd-signal.h
    ;;
 *)
    SIGNAL_HANDLER=include/default-signal.h
    ;;
esac

# If we're using sjlj exceptions, forget what we just learned.
if test "$ac_cv_sjlj_exceptions" = yes; then
   SIGNAL_HANDLER=include/default-signal.h
   SIGNAL_HANDLER_AUX=
fi

AC_SUBST(SYSDEP_SOURCES)

if test -z "$SIGNAL_HANDLER_AUX"; then
  SIGNAL_HANDLER_AUX=$SIGNAL_HANDLER
fi

AC_CONFIG_LINKS(include/java-signal.h:$SIGNAL_HANDLER
		include/java-signal-aux.h:$SIGNAL_HANDLER_AUX)

if test "${multilib}" = "yes"; then
  multilib_arg="--enable-multilib"
else
  multilib_arg=
fi

# See if we support thread-local storage.
GCC_CHECK_TLS

# For _Unwind_GetIPInfo.
GCC_CHECK_UNWIND_GETIPINFO

# See if linker supports anonymous version scripts.
AC_CACHE_CHECK([whether ld supports anonymous version scripts],
  [libjava_cv_anon_version_script],
  [AC_ARG_ENABLE(symvers,
     AS_HELP_STRING([--disable-symvers],
		    [disable symbol versioning for libjava]),
       [case "$enableval" in
         yes|gnu*) libjava_cv_anon_version_script=yes ;;
         no)  libjava_cv_anon_version_script=no ;;
         *)   AC_MSG_ERROR([Unknown argument to enable/disable symvers]);;
        esac],
       [libjava_cv_anon_version_script=yes]
   )
   if test x$libjava_cv_anon_version_script = xyes; then
     save_CFLAGS="$CFLAGS"; save_LDFLAGS="$LDFLAGS"
     CFLAGS="$CFLAGS -fPIC";
     LDFLAGS="$LDFLAGS -shared -Wl,--version-script,conftest.map"
     echo '{ global: globalsymb*; local: *; };' > conftest.map
     AC_TRY_LINK(void globalsymbol (void) {} void localsymbol (void) {},,
	         [libjava_cv_anon_version_script=gnu],
		 [libjava_cv_anon_version_script=no])
     if test x$libjava_cv_anon_version_script = xno; then
       case "$target_os" in
         solaris2*)
           LDFLAGS="$save_LDFLAGS"
           LDFLAGS="$LDFLAGS -shared -Wl,-M,conftest.map"
           # Sun ld doesn't understand wildcards here.
           echo '{ global: globalsymbol; local: *; };' > conftest.map
           AC_TRY_LINK(void globalsymbol (void) {} void localsymbol (void) {},,
	 	       [libjava_cv_anon_version_script=sun], [])
           ;;
       esac
     fi
     CFLAGS="$save_CFLAGS"; LDFLAGS="$save_LDFLAGS"
   fi
  ])
AM_CONDITIONAL(ANONVERSCRIPT, test "$libjava_cv_anon_version_script" != no)
AM_CONDITIONAL(ANONVERSCRIPT_GNU, test "$libjava_cv_anon_version_script" = gnu)
AM_CONDITIONAL(ANONVERSCRIPT_SUN, test "$libjava_cv_anon_version_script" = sun)

# Check if linker supports static linking on a per library basis
LD_START_STATIC_SPEC=
LD_FINISH_STATIC_SPEC=
if $LD --help 2>&1 | grep -- -call_shared >/dev/null 2>&1; then
  if $LD --help 2>&1 | grep -- -non_shared >/dev/null 2>&1; then
    LD_START_STATIC_SPEC='%{static-libgcj:-non_shared}'
    LD_FINISH_STATIC_SPEC='%{static-libgcj:-call_shared}'
  fi
fi
AC_SUBST(LD_START_STATIC_SPEC)
AC_SUBST(LD_FINISH_STATIC_SPEC)

here=`${PWDCMD-pwd}`
AC_SUBST(here)

# We get this from the environment.
AC_SUBST(GCJFLAGS)

default_python_dir="/share/gcc-`cat ${srcdir}/../gcc/BASE-VER`/python/libjava"
AC_ARG_WITH([python-dir],
            AS_HELP_STRING([--with-python-dir],
                           [the location to install Python modules. This path should NOT include the prefix.]),
            [with_python_dir=$withval], [with_python_dir="${default_python_dir}"])

# Needed for installing Python modules during make install.
python_mod_dir="\${prefix}${with_python_dir}"

# Needed for substituting into aot-compile*
python_mod_dir_expanded="${expanded_prefix}${with_python_dir}"

AC_MSG_RESULT(Python modules dir: ${python_mod_dir_expanded});
AC_SUBST(python_mod_dir)
AC_SUBST(python_mod_dir_expanded)

# needed for aot-compile-rpm
MAKE=`which make`
AC_SUBST(MAKE)

AC_ARG_ENABLE([aot-compile-rpm],
  [AS_HELP_STRING([--enable-aot-compile-rpm],
                 [enable installation of aot-compile-rpm [default=no]])],
  [case "${enableval}" in
    yes) AOT_RPM_ENABLED=yes ;;
    no)  AOT_RPM_ENABLED=no ;;
    *)   AC_MSG_ERROR([Unknown argument to enable/disable aot-compile-rpm]) ;;
  esac],
  [AOT_RPM_ENABLED=no]
)
AM_CONDITIONAL(INSTALL_AOT_RPM, test "x${AOT_RPM_ENABLED}" = xyes)

AC_ARG_ENABLE([java-home],
  [AS_HELP_STRING([--enable-java-home],
                 [create a standard JDK-style directory layout in the install tree [default=no]])],
  [case "${enableval}" in
    yes) JAVA_HOME_ENABLED=yes ;;
    no)  JAVA_HOME_ENABLED=no ;;
    *)   AC_MSG_ERROR([Unknown argument to enable/disable java-home]) ;;
  esac],
  [JAVA_HOME_ENABLED=no]
)
AM_CONDITIONAL(CREATE_JAVA_HOME, test "x${JAVA_HOME_ENABLED}" = xyes)

# Only do these checks if java-home above is enabled.
if test "x${JAVA_HOME_ENABLED}" = xyes
then

  AC_ARG_WITH([gcc-suffix],
              AS_HELP_STRING([--with-gcc-suffix],
                             [the GCC tool suffix (defaults to empty string)]),
              [gcc_suffix=$withval], [gcc_suffix=""])
  AC_MSG_RESULT(GCC suffix: ${gcc_suffix})
  AC_SUBST(gcc_suffix)

  AC_ARG_WITH([arch-directory],
              AS_HELP_STRING([--with-arch-directory],
                             [the arch directory under jre/lib (defaults to auto-detect)]),
              [host_cpu=$withval], [host_cpu=""])

  AC_ARG_WITH([os-directory],
              AS_HELP_STRING([--with-os-directory],
                             [the os directory under include (defaults to auto-detect)]),
              [host_os=$withval], [host_os=""])

  AC_ARG_WITH([origin-name],
              AS_HELP_STRING([--with-origin-name],
                             [the JPackage origin name of this package (default is gcj${gcc_suffix}]),
              [origin_name=$withval], [origin_name=gcj${gcc_suffix}])
  AC_MSG_RESULT(JPackage origin name: ${origin_name})

  AC_ARG_WITH([arch-suffix],
              AS_HELP_STRING([--with-arch-suffix],
                             [the arch directory suffix (default is the empty string]),
              [arch_suffix=$withval], [arch_suffix=""])
  AC_MSG_RESULT(arch suffix: ${arch_suffix})

  AC_ARG_WITH([jvm-root-dir],
              AS_HELP_STRING([--with-jvm-root-dir],
                             [where to install SDK (default is ${prefix}/lib/jvm)]),
              [jvm_root_dir=$withval], [jvm_root_dir="\${prefix}/lib/jvm"])
  AC_MSG_RESULT(JVM root installation directory: ${jvm_root_dir})

  AC_ARG_WITH([jvm-jar-dir],
              AS_HELP_STRING([--with-jvm-jar-dir],
			                 [where to install jars (default is ${prefix}/lib/jvm-exports)]),
              [jvm_jar_dir=$withval], [jvm_jar_dir=\${prefix}/lib/jvm-exports])
  AC_MSG_RESULT(JAR root installation directory: ${jvm_jar_dir})

  JAVA_VERSION=1.5.0
  BUILD_VERSION=0
  AC_SUBST(JAVA_VERSION)
  AC_SUBST(BUILD_VERSION)
  AC_MSG_RESULT(Java version: ${JAVA_VERSION})

  jre_dir=jre
  jre_lnk=jre-${JAVA_VERSION}-${origin_name}
  sdk_lnk=java-${JAVA_VERSION}-${origin_name}

  JVM_ROOT_DIR=${jvm_root_dir}
  AC_SUBST(JVM_ROOT_DIR)
  AC_MSG_RESULT(JVM ROOT directory: ${JVM_ROOT_DIR})

  JVM_JAR_ROOT_DIR=${jvm_jar_dir}
  AC_SUBST(JVM_JAR_ROOT_DIR)
  AC_MSG_RESULT(JVM JAR ROOT directory: ${JVM_JAR_ROOT_DIR})

  JVM_JAR_DIR=${jvm_jar_dir}
  AC_SUBST(JVM_JAR_DIR)
  AC_MSG_RESULT(JVM JAR directory: ${JVM_JAR_DIR})

  JRE_DIR=${jre_dir}
  AC_SUBST(JRE_DIR)

  JRE_LNK=${jre_lnk}
  AC_SUBST(JRE_LNK)

  SDK_LNK=${sdk_lnk}
  AC_SUBST(SDK_LNK)

  SDK_BIN_DIR=${jvm_root_dir}/bin
  AC_SUBST(SDK_BIN_DIR)
  AC_MSG_RESULT(SDK tools directory: ${SDK_BIN_DIR})

  SDK_LIB_DIR=${jvm_root_dir}/lib
  AC_SUBST(SDK_LIB_DIR)
  AC_MSG_RESULT(SDK jar directory: ${SDK_LIB_DIR})

  SDK_INCLUDE_DIR=${jvm_root_dir}/include
  AC_SUBST(SDK_INCLUDE_DIR)
  AC_MSG_RESULT(SDK include directory: ${SDK_INCLUDE_DIR})

  JRE_BIN_DIR=${jvm_root_dir}/${jre_dir}/bin
  AC_SUBST(JRE_BIN_DIR)
  AC_MSG_RESULT(JRE tools directory: ${JRE_BIN_DIR})

  JRE_LIB_DIR=${jvm_root_dir}/${jre_dir}/lib
  AC_SUBST(JRE_LIB_DIR)
  AC_MSG_RESULT(JRE lib directory: ${JRE_LIB_DIR})

  # Find gcj prefix using gcj found in PATH.
  gcj_prefix=`which gcj${gcc_suffix} | sed "s%/bin/gcj${gcc_suffix}%%"`

  # Where do the gcj binaries live?
  # For jhbuild based builds, they all live in a sibling of bin called
  # gcj-bin.  Check for gcj-bin first, and use bin otherwise.
  GCJ_BIN_DIR=`if test -d ${gcj_prefix}/gcj-bin; then echo ${gcj_prefix}/gcj-bin; else echo ${gcj_prefix}/bin; fi`
  AC_SUBST(GCJ_BIN_DIR)
  AC_MSG_RESULT(GCJ tools directory: ${GCJ_BIN_DIR})

  AC_MSG_RESULT(host is ${host})
  if test "x${host_cpu}" = "x"
  then
    case ${host} in
      *-mingw* | *-cygwin*)
        host_cpu=x86;;
      i486-* | i586-* | i686-*)
        host_cpu=i386;;
      x86_64-*)
        host_cpu=amd64;;
      *)
        host_cpu=${host_cpu};;
    esac
  fi
  AC_MSG_RESULT(arch directory: ${host_cpu})
  CPU=${host_cpu}
  AC_SUBST(CPU)

  if test "x${host_os}" = "x"
  then
    case ${host} in
      *-mingw* | *-cygwin*)
        host_os=win32;;
      *-linux*)
        host_os=linux;;
      *)
        host_os=${host_os};;
    esac
  fi
  echo os directory: ${host_os}
  OS=${host_os}
  AC_SUBST(OS)

  # make an expanded $libdir, for substituting into
  # scripts (and other non-Makefile things).
  LIBDIR=$libdir
  if test "x${exec_prefix}" = "xNONE"
  then
      lib_exec_prefix=$expanded_prefix
  else
      lib_exec_prefix=$exec_prefix
  fi
  LIBDIR=`echo $libdir | sed "s:\\\${exec_prefix}:$lib_exec_prefix:g"`
  AC_SUBST(LIBDIR)
fi

AC_CONFIG_FILES([
Makefile
libgcj.pc
libgcj.spec
libgcj-test.spec
gcj/Makefile
include/Makefile
testsuite/Makefile
contrib/aotcompile.py
contrib/aot-compile
contrib/aot-compile-rpm
contrib/generate-cacerts.pl
contrib/rebuild-gcj-db
])

if test ${multilib} = yes; then
  multilib_arg="--enable-multilib"
else
  multilib_arg=
fi

AC_CONFIG_FILES([scripts/jar], [chmod +x scripts/jar])
AC_OUTPUT