aboutsummaryrefslogtreecommitdiff
path: root/configure
blob: bdda912f3626000ed0006276a36919bcf30821c1 (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
#!/bin/sh
#
# qemu configure script (c) 2003 Fabrice Bellard
#

# Unset some variables known to interfere with behavior of common tools,
# just as autoconf does.  Unlike autoconf, we assume that unset exists.
unset CLICOLOR_FORCE GREP_OPTIONS BASH_ENV ENV MAIL MAILPATH CDPATH

# Don't allow CCACHE, if present, to use cached results of compile tests!
export CCACHE_RECACHE=yes

# make source path absolute
source_path=$(cd "$(dirname -- "$0")"; pwd)

if test "$PWD" = "$source_path"
then
    echo "Using './build' as the directory for build output"

    MARKER=build/auto-created-by-configure

    if test -e build
    then
        if test -f $MARKER
        then
           rm -rf build
        else
            echo "ERROR: ./build dir already exists and was not previously created by configure"
            exit 1
        fi
    fi

    if ! mkdir build || ! touch $MARKER
    then
        echo "ERROR: Could not create ./build directory. Check the permissions on"
        echo "your source directory, or try doing an out-of-tree build."
        exit 1
    fi

    cat > GNUmakefile <<'EOF'
# This file is auto-generated by configure to support in-source tree
# 'make' command invocation

build:
	@echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
	@$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
	@if test "$(MAKECMDGOALS)" = "distclean" && \
	    test -e build/auto-created-by-configure ; \
	then \
	    rm -rf build GNUmakefile ; \
	fi
%: build
	@
.PHONY: build
GNUmakefile: ;

EOF
    cd build
    exec "$source_path/configure" "$@"
fi

# Temporary directory used for files created while
# configure runs. Since it is in the build directory
# we can safely blow away any previous version of it
# (and we need not jump through hoops to try to delete
# it when configure exits.)
TMPDIR1="config-temp"
rm -rf "${TMPDIR1}"
if ! mkdir -p "${TMPDIR1}"; then
    echo "ERROR: failed to create temporary directory"
    exit 1
fi

TMPB="qemu-conf"
TMPC="${TMPDIR1}/${TMPB}.c"
TMPO="${TMPDIR1}/${TMPB}.o"
TMPE="${TMPDIR1}/${TMPB}.exe"

rm -f config.log

# Print a helpful header at the top of config.log
echo "# QEMU configure log $(date)" >> config.log
printf "# Configured with:" >> config.log
# repeat the invocation to log and stdout for CI
invoke=$(printf " '%s'" "$0" "$@")
test -n "$GITLAB_CI" && echo "configuring with: $invoke"
{ echo "$invoke"; echo; echo "#"; } >> config.log

quote_sh() {
    printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
}

error_exit() {
    (echo
    echo "ERROR: $1"
    while test -n "$2"; do
        echo "       $2"
        shift
    done
    echo) >&2
    exit 1
}

do_compiler() {
  # Run the compiler, capturing its output to the log. First argument
  # is compiler binary to execute.
  compiler="$1"
  shift
  if test -n "$BASH_VERSION"; then eval '
      echo >>config.log "
funcs: ${FUNCNAME[*]}
lines: ${BASH_LINENO[*]}"
  '; fi
  echo $compiler "$@" >> config.log
  $compiler "$@" >> config.log 2>&1 || return $?
}

do_cc() {
    do_compiler "$cc" $CPU_CFLAGS "$@"
}

compile_object() {
  local_cflags="$1"
  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
}

compile_prog() {
  local_cflags="$1"
  local_ldflags="$2"
  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
      $LDFLAGS $EXTRA_LDFLAGS $local_ldflags
}

# symbolically link $1 to $2.  Portable version of "ln -sf".
symlink() {
  rm -rf "$2"
  mkdir -p "$(dirname "$2")"
  ln -s "$1" "$2"
}

# check whether a command is available to this shell (may be either an
# executable or a builtin)
has() {
    type "$1" >/dev/null 2>&1
}

version_ge () {
    local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
    local_ver2=$(echo "$2" | tr . ' ')
    while true; do
        set x $local_ver1
        local_first=${2-0}
        # 'shift 2' if $2 is set, or 'shift' if $2 is not set
        shift ${2:+2}
        local_ver1=$*
        set x $local_ver2
        # the second argument finished, the first must be greater or equal
        test $# = 1 && return 0
        test $local_first -lt $2 && return 1
        test $local_first -gt $2 && return 0
        shift ${2:+2}
        local_ver2=$*
    done
}

if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
then
  error_exit "main directory cannot contain spaces nor colons"
fi

# parse CC options first; some compiler tests are used to establish
# some defaults, based on the host environment

# default parameters
container_engine="auto"
cpu=""
cross_compile="no"
cross_prefix=""
host_cc="cc"
EXTRA_CFLAGS=""
EXTRA_CXXFLAGS=""
EXTRA_OBJCFLAGS=""
EXTRA_LDFLAGS=""

# Default value for a variable defining feature "foo".
#  * foo="no"  feature will only be used if --enable-foo arg is given
#  * foo=""    feature will be searched for, and if found, will be used
#              unless --disable-foo is given
#  * foo="yes" this value will only be set by --enable-foo flag.
#              feature will searched for,
#              if not found, configure exits with error
#
# Always add --enable-foo and --disable-foo command line args.
# Distributions want to ensure that several features are compiled in, and it
# is impossible without a --enable-foo that exits if a feature is not found.
default_feature=""

for opt do
  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
  case "$opt" in
  --cross-prefix=*) cross_prefix="$optarg"
                    cross_compile="yes"
  ;;
  --cc=*) CC="$optarg"
  ;;
  --cxx=*) CXX="$optarg"
  ;;
  --objcc=*) objcc="$optarg"
  ;;
  --cpu=*) cpu="$optarg"
  ;;
  --extra-cflags=*)
    EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
    EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
    EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
    ;;
  --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
  ;;
  --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
  ;;
  --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
  ;;
  --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
  ;;
  --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
                      eval "cross_cc_cflags_${cc_arch}=\$optarg"
  ;;
  --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
                eval "cross_cc_${cc_arch}=\$optarg"
  ;;
  --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
  ;;
  --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
                    eval "cross_prefix_${cc_arch}=\$optarg"
  ;;
  --without-default-features) default_feature="no"
  ;;
  esac
done

default_cflags='-O2 -g'
git_submodules_action="update"
docs="auto"
EXESUF=""
system="yes"
linux_user=""
bsd_user=""
plugins="$default_feature"
subdirs=""
ninja=""
python=
download="enabled"
skip_meson=no
use_containers="yes"
gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
gdb_arches=""

# Don't accept a target_list environment variable.
unset target_list
unset target_list_exclude

# The following Meson options are handled manually (still they
# are included in the automatically generated help message)
# because they automatically enable/disable other options
tcg="auto"
cfi="false"

# Meson has PIE as a boolean rather than enabled/disabled/auto,
# and we also need to check for -static-pie before Meson runs
# which requires knowing whether --static is enabled.
pie=""
static="no"

# Preferred compiler:
#  ${CC} (if set)
#  ${cross_prefix}gcc (if cross-prefix specified)
#  system compiler
if test -z "${CC}${cross_prefix}"; then
  cc="cc"
else
  cc="${CC-${cross_prefix}gcc}"
fi

if test -z "${CXX}${cross_prefix}"; then
  cxx="c++"
else
  cxx="${CXX-${cross_prefix}g++}"
fi

# Preferred ObjC compiler:
# $objcc (if set, i.e. via --objcc option)
# ${cross_prefix}clang (if cross-prefix specified)
# clang (if available)
# $cc
if test -z "${objcc}${cross_prefix}"; then
  if has clang; then
    objcc=clang
  else
    objcc="$cc"
  fi
else
  objcc="${objcc-${cross_prefix}clang}"
fi

ar="${AR-${cross_prefix}ar}"
as="${AS-${cross_prefix}as}"
ccas="${CCAS-$cc}"
dlltool="${DLLTOOL-${cross_prefix}dlltool}"
objcopy="${OBJCOPY-${cross_prefix}objcopy}"
ld="${LD-${cross_prefix}ld}"
ranlib="${RANLIB-${cross_prefix}ranlib}"
nm="${NM-${cross_prefix}nm}"
strip="${STRIP-${cross_prefix}strip}"
widl="${WIDL-${cross_prefix}widl}"
windres="${WINDRES-${cross_prefix}windres}"
windmc="${WINDMC-${cross_prefix}windmc}"
pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"

check_define() {
cat > $TMPC <<EOF
#if !defined($1)
#error $1 not defined
#endif
int main(void) { return 0; }
EOF
  compile_object
}

write_c_skeleton() {
    cat > $TMPC <<EOF
int main(void) { return 0; }
EOF
}

if check_define __linux__ ; then
  targetos=linux
elif check_define _WIN32 ; then
  targetos=windows
elif check_define __OpenBSD__ ; then
  targetos=openbsd
elif check_define __sun__ ; then
  targetos=sunos
elif check_define __HAIKU__ ; then
  targetos=haiku
elif check_define __FreeBSD__ ; then
  targetos=freebsd
elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
  targetos=gnu/kfreebsd
elif check_define __DragonFly__ ; then
  targetos=dragonfly
elif check_define __NetBSD__; then
  targetos=netbsd
elif check_define __APPLE__; then
  targetos=darwin
else
  # This is a fatal error, but don't report it yet, because we
  # might be going to just print the --help text, or it might
  # be the result of a missing compiler.
  targetos=bogus
fi

if test ! -z "$cpu" ; then
  # command line argument
  :
elif check_define __i386__ ; then
  cpu="i386"
elif check_define __x86_64__ ; then
  if check_define __ILP32__ ; then
    cpu="x32"
  else
    cpu="x86_64"
  fi
elif check_define __sparc__ ; then
  if check_define __arch64__ ; then
    cpu="sparc64"
  else
    cpu="sparc"
  fi
elif check_define _ARCH_PPC ; then
  if check_define _ARCH_PPC64 ; then
    if check_define _LITTLE_ENDIAN ; then
      cpu="ppc64le"
    else
      cpu="ppc64"
    fi
  else
    cpu="ppc"
  fi
elif check_define __mips__ ; then
  cpu="mips"
elif check_define __s390__ ; then
  if check_define __s390x__ ; then
    cpu="s390x"
  else
    cpu="s390"
  fi
elif check_define __riscv ; then
  if check_define _LP64 ; then
    cpu="riscv64"
  else
    cpu="riscv32"
  fi
elif check_define __arm__ ; then
  cpu="arm"
elif check_define __aarch64__ ; then
  cpu="aarch64"
elif check_define __loongarch64 ; then
  cpu="loongarch64"
else
  # Using uname is really broken, but it is just a fallback for architectures
  # that are going to use TCI anyway
  cpu=$(uname -m)
  echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
fi

# Normalise host CPU name to the values used by Meson cross files and in source
# directories, and set multilib cflags.  The canonicalization isn't really
# necessary, because the architectures that we check for should not hit the
# 'uname -m' case, but better safe than sorry in case --cpu= is used.
#
# Note that this case should only have supported host CPUs, not guests.
# Please keep it sorted and synchronized with meson.build's host_arch.
host_arch=
linux_arch=
case "$cpu" in
  aarch64)
    host_arch=aarch64
    linux_arch=arm64
    ;;

  armv*b|armv*l|arm)
    cpu=arm
    host_arch=arm
    linux_arch=arm
    ;;

  i386|i486|i586|i686)
    cpu="i386"
    host_arch=i386
    linux_arch=x86
    CPU_CFLAGS="-m32"
    ;;

  loongarch*)
    cpu=loongarch64
    host_arch=loongarch64
    ;;

  mips64*)
    cpu=mips64
    host_arch=mips
    linux_arch=mips
    ;;
  mips*)
    cpu=mips
    host_arch=mips
    linux_arch=mips
    ;;

  ppc)
    host_arch=ppc
    linux_arch=powerpc
    CPU_CFLAGS="-m32"
    ;;
  ppc64)
    host_arch=ppc64
    linux_arch=powerpc
    CPU_CFLAGS="-m64 -mbig-endian"
    ;;
  ppc64le)
    cpu=ppc64
    host_arch=ppc64
    linux_arch=powerpc
    CPU_CFLAGS="-m64 -mlittle-endian"
    ;;

  riscv32 | riscv64)
    host_arch=riscv
    linux_arch=riscv
    ;;

  s390)
    linux_arch=s390
    CPU_CFLAGS="-m31"
    ;;
  s390x)
    host_arch=s390x
    linux_arch=s390
    CPU_CFLAGS="-m64"
    ;;

  sparc|sun4[cdmuv])
    cpu=sparc
    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
    ;;
  sparc64)
    host_arch=sparc64
    CPU_CFLAGS="-m64 -mcpu=ultrasparc"
    ;;

  x32)
    cpu="x86_64"
    host_arch=x86_64
    linux_arch=x86
    CPU_CFLAGS="-mx32"
    ;;
  x86_64|amd64)
    cpu="x86_64"
    host_arch=x86_64
    linux_arch=x86
    # ??? Only extremely old AMD cpus do not have cmpxchg16b.
    # If we truly care, we should simply detect this case at
    # runtime and generate the fallback to serial emulation.
    CPU_CFLAGS="-m64 -mcx16"
    ;;
esac

if test -n "$host_arch" && {
    ! test -d "$source_path/linux-user/include/host/$host_arch" ||
    ! test -d "$source_path/common-user/host/$host_arch"; }; then
    error_exit "linux-user/include/host/$host_arch does not exist." \
       "This is a bug in the configure script, please report it."
fi
if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
    error_exit "linux-headers/asm-$linux_arch does not exist." \
       "This is a bug in the configure script, please report it."
fi

check_py_version() {
    # We require python >= 3.8.
    # NB: a True python conditional creates a non-zero return code (Failure)
    "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
}

first_python=
if test -z "${PYTHON}"; then
    # A bare 'python' is traditionally python 2.x, but some distros
    # have it as python 3.x, so check in both places.
    for binary in python3 python python3.12 python3.11 \
                          python3.10 python3.9 python3.8; do
        if has "$binary"; then
            python=$(command -v "$binary")
            if check_py_version "$python"; then
                # This one is good.
                first_python=
                break
            else
                first_python=$python
            fi
        fi
    done
else
    # Same as above, but only check the environment variable.
    has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
    python=$(command -v "$PYTHON")
    if check_py_version "$python"; then
        # This one is good.
        first_python=
    else
        first_python=$first_python
    fi
fi

# Check for ancillary tools used in testing
genisoimage=
for binary in genisoimage mkisofs
do
    if has $binary
    then
        genisoimage=$(command -v "$binary")
        break
    fi
done

if test "$targetos" = "windows" ; then
  EXESUF=".exe"
fi

meson_option_build_array() {
  printf '['
  (if test "$targetos" = windows; then
    IFS=\;
  else
    IFS=:
  fi
  for e in $1; do
    printf '"""'
    # backslash escape any '\' and '"' characters
    printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
    printf '""",'
  done)
  printf ']\n'
}

. "$source_path/scripts/meson-buildoptions.sh"

meson_options=
meson_option_add() {
  local arg
  for arg; do
    meson_options="$meson_options $(quote_sh "$arg")"
  done
}
meson_option_parse() {
  meson_options="$meson_options $(_meson_option_parse "$@")"
  if test $? -eq 1; then
    echo "ERROR: unknown option $1"
    echo "Try '$0 --help' for more information"
    exit 1
  fi
}

meson_add_machine_file() {
  if test "$cross_compile" = "yes"; then
    meson_option_add --cross-file "$1"
  else
    meson_option_add --native-file "$1"
  fi
}

for opt do
  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
  case "$opt" in
  --help|-h) show_help=yes
  ;;
  --version|-V) exec cat "$source_path/VERSION"
  ;;
  --cross-prefix=*)
  ;;
  --cc=*)
  ;;
  --host-cc=*) host_cc="$optarg"
  ;;
  --cxx=*)
  ;;
  --objcc=*)
  ;;
  --make=*)
  ;;
  --install=*)
  ;;
  --python=*) python="$optarg"
  ;;
  --skip-meson) skip_meson=yes
  ;;
  --ninja=*) ninja="$optarg"
  ;;
  --extra-cflags=*)
  ;;
  --extra-cxxflags=*)
  ;;
  --extra-objcflags=*)
  ;;
  --extra-ldflags=*)
  ;;
  --cross-cc-*)
  ;;
  --cross-prefix-*)
  ;;
  --enable-docs) docs=enabled
  ;;
  --disable-docs) docs=disabled
  ;;
  --cpu=*)
  ;;
  --target-list=*) target_list="$optarg"
                   if test "$target_list_exclude"; then
                       error_exit "Can't mix --target-list with --target-list-exclude"
                   fi
  ;;
  --target-list-exclude=*) target_list_exclude="$optarg"
                   if test "$target_list"; then
                       error_exit "Can't mix --target-list-exclude with --target-list"
                   fi
  ;;
  --with-default-devices) meson_option_add -Ddefault_devices=true
  ;;
  --without-default-devices) meson_option_add -Ddefault_devices=false
  ;;
  --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
  ;;
  --with-devices-*) device_arch=${opt#--with-devices-};
                    device_arch=${device_arch%%=*}
                    cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
                    if test -f "$cf"; then
                        device_archs="$device_archs $device_arch"
                        eval "devices_${device_arch}=\$optarg"
                    else
                        error_exit "File $cf does not exist"
                    fi
  ;;
  --without-default-features) # processed above
  ;;
  --static) static="yes"
  ;;
  --host=*|--build=*|\
  --disable-dependency-tracking|\
  --sbindir=*|--sharedstatedir=*|\
  --oldincludedir=*|--datarootdir=*|--infodir=*|\
  --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
    # These switches are silently ignored, for compatibility with
    # autoconf-generated configure scripts. This allows QEMU's
    # configure to be used by RPM and similar macros that set
    # lots of directory switches by default.
  ;;
  --enable-debug)
      # Enable debugging options that aren't excessively noisy
      meson_option_parse --enable-debug-tcg ""
      meson_option_parse --enable-debug-graph-lock ""
      meson_option_parse --enable-debug-mutex ""
      meson_option_add -Doptimization=0
      default_cflags='-O0 -g'
  ;;
  --disable-tcg) tcg="disabled"
  ;;
  --enable-tcg) tcg="enabled"
  ;;
  --disable-system) system="no"
  ;;
  --enable-system) system="yes"
  ;;
  --disable-user)
      linux_user="no" ;
      bsd_user="no" ;
  ;;
  --enable-user) ;;
  --disable-linux-user) linux_user="no"
  ;;
  --enable-linux-user) linux_user="yes"
  ;;
  --disable-bsd-user) bsd_user="no"
  ;;
  --enable-bsd-user) bsd_user="yes"
  ;;
  --enable-pie) pie="yes"
  ;;
  --disable-pie) pie="no"
  ;;
  --enable-cfi) cfi=true
  ;;
  --disable-cfi) cfi=false
  ;;
  --disable-download) download="disabled"; git_submodules_action=validate;
  ;;
  --enable-download) download="enabled"; git_submodules_action=update;
  ;;
  --enable-plugins) plugins="yes"
  ;;
  --disable-plugins) plugins="no"
  ;;
  --enable-containers) use_containers="yes"
  ;;
  --disable-containers) use_containers="no"
  ;;
  --container-engine=*) container_engine="$optarg"
  ;;
  --gdb=*) gdb_bin="$optarg"
  ;;
  # everything else has the same name in configure and meson
  --*) meson_option_parse "$opt" "$optarg"
  ;;
  # Pass through -Dxxxx options to meson
  -D*) meson_options="$meson_options $opt"
  ;;
  esac
done

if ! test -e "$source_path/.git"
then
    git_submodules_action="validate"
fi

if ! test -f "$source_path/subprojects/keycodemapdb/README" \
    && test "$download" = disabled
then
    echo
    echo "ERROR: missing subprojects"
    echo
    if test -e "$source_path/.git"; then
        echo "--disable-download specified but subprojects were not"
        echo 'checked out.  Please invoke "meson subprojects download"'
        echo "before configuring QEMU, or remove --disable-download"
        echo "from the command line."
    else
        echo "This is not a GIT checkout but subproject content appears to"
        echo "be missing. Do not use 'git archive' or GitHub download links"
        echo "to acquire QEMU source archives. Non-GIT builds are only"
        echo "supported with source archives linked from:"
        echo
        echo "  https://www.qemu.org/download/#source"
        echo
        echo "Developers working with GIT can use scripts/archive-source.sh"
        echo "if they need to create valid source archives."
    fi
    echo
    exit 1
fi

default_target_list=""
mak_wilds=""

if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
    if [ "$linux_user" != no ]; then
        if [ "$targetos" = linux ]; then
            linux_user=yes
        elif [ "$linux_user" = yes ]; then
            error_exit "linux-user not supported on this architecture"
        fi
        if [ "$linux_user" = "yes" ]; then
            mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
        fi
    fi
    if [ "$bsd_user" != no ]; then
        if [ "$bsd_user" = "" ]; then
            test $targetos = freebsd && bsd_user=yes
        fi
        if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
            error_exit "bsd-user not supported on this host OS"
        fi
        if [ "$bsd_user" = "yes" ]; then
            mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
        fi
    fi
else
    if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
        error_exit "user mode emulation not supported on this architecture"
    fi
fi
if [ "$system" = "yes" ]; then
    mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
fi

for config in $mak_wilds; do
    target="$(basename "$config" .mak)"
    if echo "$target_list_exclude" | grep -vq "$target"; then
        default_target_list="${default_target_list} $target"
    fi
done

if test x"$show_help" = x"yes" ; then
cat << EOF

Usage: configure [options]
Options: [defaults in brackets after descriptions]

Standard options:
  --help                   print this message
  --target-list=LIST       set target list (default: build all)
$(echo Available targets: $default_target_list | \
  fold -s -w 53 | sed -e 's/^/                           /')
  --target-list-exclude=LIST exclude a set of targets from the default target-list

Advanced options (experts only):
  -Dmesonoptname=val       passthrough option to meson unmodified
  --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
  --cc=CC                  use C compiler CC [$cc]
  --host-cc=CC             when cross compiling, use C compiler CC for code run
                           at build time [$host_cc]
  --cxx=CXX                use C++ compiler CXX [$cxx]
  --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
  --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
  --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
  --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
  --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
  --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
  --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
  --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
  --python=PYTHON          use specified python [$python]
  --ninja=NINJA            use specified ninja [$ninja]
  --static                 enable static build [$static]
  --without-default-features default all --enable-* options to "disabled"
  --without-default-devices  do not include any device that is not needed to
                           start the emulator (only use if you are including
                           desired devices in configs/devices/)
  --with-devices-ARCH=NAME override default configs/devices
  --enable-debug           enable common debug build options
  --cpu=CPU                Build for host CPU [$cpu]
  --disable-containers     don't use containers for cross-building
  --container-engine=TYPE  which container engine to use [$container_engine]
  --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
EOF
  meson_options_help
cat << EOF
  system          all system emulation targets
  user            supported user emulation targets
  linux-user      all linux usermode emulation targets
  bsd-user        all BSD usermode emulation targets
  pie             Position Independent Executables

NOTE: The object files are built at the place where configure is launched
EOF
exit 0
fi

# Remove old dependency files to make sure that they get properly regenerated
rm -f ./*/config-devices.mak.d

if test -z "$python"
then
    # If first_python is set, there was a binary somewhere even though
    # it was not suitable.  Use it for the error message.
    if test -n "$first_python"; then
        error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
            "Use --python=/path/to/python to specify a supported Python."
    else
        error_exit "Python not found. Use --python=/path/to/python"
    fi
fi

if ! check_py_version "$python"; then
  error_exit "Cannot use '$python', Python >= 3.8 is required." \
             "Use --python=/path/to/python to specify a supported Python." \
             "Maybe try:" \
             "  openSUSE Leap 15.3+: zypper install python39" \
             "  CentOS 8: dnf install python38"
fi

# Resolve PATH
python="$(command -v "$python")"

# Create a Python virtual environment using our configured python.
# The stdout of this script will be the location of a symlink that
# points to the configured Python.
# Entry point scripts for pip, meson, and sphinx are generated if those
# packages are present.

# Defaults assumed for now:
# - venv is cleared if it exists already;
# - venv is allowed to use system packages;
# - all setup can be performed offline;
# - missing packages may be fetched from PyPI,
#   unless --disable-download is passed.
# - pip is not installed into the venv when possible,
#   but ensurepip is called as a fallback when necessary.

echo "python determined to be '$python'"
echo "python version: $($python --version)"

python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
if test "$?" -ne 0 ; then
    error_exit "python venv creation failed"
fi

# Suppress writing compiled files
python="$python -B"
mkvenv="$python ${source_path}/python/scripts/mkvenv.py"

# Finish preparing the virtual environment using vendored .whl files

if $python -c 'import sys; sys.exit(sys.version_info >= (3,11))'; then
    $mkvenv ensure --dir "${source_path}/python/wheels" \
        'tomli>=1.2.0' || exit 1
fi
$mkvenv ensuregroup --dir "${source_path}/python/wheels" \
     ${source_path}/pythondeps.toml meson || exit 1

# At this point, we expect Meson to be installed and available.
# We expect mkvenv or pip to have created pyvenv/bin/meson for us.
# We ignore PATH completely here: we want to use the venv's Meson
# *exclusively*.

meson="$(cd pyvenv/bin; pwd)/meson"

# Conditionally ensure Sphinx is installed.

mkvenv_online_flag=""
if test "$download" = "enabled" ; then
    mkvenv_online_flag=" --online"
fi

if test "$docs" != "disabled" ; then
    if ! $mkvenv ensuregroup \
         $(test "$docs" = "enabled" && echo "$mkvenv_online_flag") \
         ${source_path}/pythondeps.toml docs;
    then
        if test "$docs" = "enabled" ; then
            exit 1
        fi
        echo "Sphinx not found/usable, disabling docs."
        docs=disabled
    else
        docs=enabled
    fi
fi

# Probe for ninja

if test -z "$ninja"; then
    for c in ninja ninja-build samu; do
        if has $c; then
            ninja=$(command -v "$c")
            break
        fi
    done
    if test -z "$ninja"; then
      error_exit "Cannot find Ninja"
    fi
fi

if test "$targetos" = "bogus"; then
    # Now that we know that we're not printing the help and that
    # the compiler works (so the results of the check_defines we used
    # to identify the OS are reliable), if we didn't recognize the
    # host OS we should stop now.
    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
fi

# test for any invalid configuration combinations
if test "$targetos" = "windows" && ! has "$dlltool"; then
  if test "$plugins" = "yes"; then
    error_exit "TCG plugins requires dlltool to build on Windows platforms"
  fi
  plugins="no"
fi
if test "$tcg" = "disabled" ; then
  if test "$plugins" = "yes"; then
    error_exit "Can't enable plugins on non-TCG builds"
  fi
  plugins="no"
fi
if test "$static" = "yes" ; then
  if test "$plugins" = "yes"; then
    error_exit "static and plugins are mutually incompatible"
  fi
  plugins="no"
fi
if test "$plugins" != "no"; then
  plugins=yes
  subdirs="$subdirs contrib/plugins"
fi

cat > $TMPC << EOF

#ifdef __linux__
#  define THREAD __thread
#else
#  define THREAD
#endif
static THREAD int tls_var;
int main(void) { return tls_var; }
EOF

if test "$targetos" = windows || test "$targetos" = haiku; then
  if test "$pie" = "yes"; then
    error_exit "PIE not available due to missing OS support"
  fi
  pie=no
fi

if test "$pie" != "no"; then
  if test "$static" = "yes"; then
    pie_ldflags=-static-pie
  else
    pie_ldflags=-pie
  fi
  if compile_prog "-Werror -fPIE -DPIE" "$pie_ldflags"; then
    pie="yes"
  elif test "$pie" = "yes"; then
    error_exit "-static-pie not available due to missing toolchain support"
  else
    echo "Disabling PIE due to missing toolchain support"
    pie="no"
  fi
fi

##########################################

if test -z "${target_list+xxx}" ; then
    default_targets=yes
    for target in $default_target_list; do
        target_list="$target_list $target"
    done
    target_list="${target_list# }"
else
    default_targets=no
    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
    for target in $target_list; do
        # Check that we recognised the target name; this allows a more
        # friendly error message than if we let it fall through.
        case " $default_target_list " in
            *" $target "*)
                ;;
            *)
                error_exit "Unknown target name '$target'"
                ;;
        esac
    done
fi

if test "$tcg" = "auto"; then
  if test -z "$target_list"; then
    tcg="disabled"
  else
    tcg="enabled"
  fi
fi

#########################################
# gdb test

if test -n "$gdb_bin"; then
    gdb_version=$($gdb_bin --version | head -n 1)
    if version_ge ${gdb_version##* } 9.1; then
        gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
    else
        gdb_bin=""
    fi
fi

##########################################
# big/little endian test
cat > $TMPC << EOF
#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
# error LITTLE
#endif
int main(void) { return 0; }
EOF

if ! compile_prog ; then
  bigendian="no"
else
  cat > $TMPC << EOF
#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
# error BIG
#endif
int main(void) { return 0; }
EOF

  if ! compile_prog ; then
    bigendian="yes"
  else
    echo big/little test failed
    exit 1
  fi
fi

##########################################
# functions to probe cross compilers

container="no"
runc=""
if test $use_containers = "yes" && (has "docker" || has "podman"); then
    case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
        *docker) container=docker ;;
        podman) container=podman ;;
        no) container=no ;;
    esac
    if test "$container" != "no"; then
        docker_py="$python $source_path/tests/docker/docker.py --engine $container"
        runc=$container
    fi
fi

# cross compilers defaults, can be overridden with --cross-cc-ARCH
: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
: ${cross_prefix_alpha="alpha-linux-gnu-"}
: ${cross_prefix_arm="arm-linux-gnueabihf-"}
: ${cross_prefix_armeb="$cross_prefix_arm"}
: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
: ${cross_prefix_hppa="hppa-linux-gnu-"}
: ${cross_prefix_i386="i686-linux-gnu-"}
: ${cross_prefix_m68k="m68k-linux-gnu-"}
: ${cross_prefix_microblaze="microblaze-linux-musl-"}
: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
: ${cross_prefix_mips="mips-linux-gnu-"}
: ${cross_prefix_nios2="nios2-linux-gnu-"}
: ${cross_prefix_ppc="powerpc-linux-gnu-"}
: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
: ${cross_prefix_s390x="s390x-linux-gnu-"}
: ${cross_prefix_sh4="sh4-linux-gnu-"}
: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
: ${cross_prefix_sparc="$cross_prefix_sparc64"}
: ${cross_prefix_tricore="tricore-"}
: ${cross_prefix_x86_64="x86_64-linux-gnu-"}

: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
: ${cross_cc_armeb="$cross_cc_arm"}
: ${cross_cc_cflags_armeb="-mbig-endian"}
: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
: ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
: ${cross_cc_cflags_i386="-m32"}
: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
: ${cross_cc_ppc64le="$cross_cc_ppc64"}
: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
: ${cross_cc_sparc="$cross_cc_sparc64"}
: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
: ${cross_cc_cflags_x86_64="-m64"}

compute_target_variable() {
  eval "$2="
  if eval test -n "\"\${cross_prefix_$1}\""; then
    if eval has "\"\${cross_prefix_$1}\$3\""; then
      eval "$2=\"\${cross_prefix_$1}\$3\""
    fi
  fi
}

have_target() {
  for i; do
    case " $target_list " in
      *" $i "*) return 0;;
      *) ;;
    esac
  done
  return 1
}

# probe_target_compiler TARGET
#
# Look for a compiler for the given target, either native or cross.
# Set variables target_* if a compiler is found, and container_cross_*
# if a Docker-based cross-compiler image is known for the target.
# Set got_cross_cc to yes/no depending on whether a non-container-based
# compiler was found.
#
# If TARGET is a user-mode emulation target, also set build_static to
# "y" if static linking is possible.
#
probe_target_compiler() {
  # reset all output variables
  got_cross_cc=no
  container_image=
  container_hosts=
  container_cross_cc=
  container_cross_ar=
  container_cross_as=
  container_cross_ld=
  container_cross_nm=
  container_cross_objcopy=
  container_cross_ranlib=
  container_cross_strip=

  target_arch=${1%%-*}
  case $target_arch in
    aarch64) container_hosts="x86_64 aarch64" ;;
    alpha) container_hosts=x86_64 ;;
    arm) container_hosts="x86_64 aarch64" ;;
    cris) container_hosts=x86_64 ;;
    hexagon) container_hosts=x86_64 ;;
    hppa) container_hosts=x86_64 ;;
    i386) container_hosts=x86_64 ;;
    loongarch64) container_hosts=x86_64 ;;
    m68k) container_hosts=x86_64 ;;
    microblaze) container_hosts=x86_64 ;;
    mips64el) container_hosts=x86_64 ;;
    mips64) container_hosts=x86_64 ;;
    mipsel) container_hosts=x86_64 ;;
    mips) container_hosts=x86_64 ;;
    nios2) container_hosts=x86_64 ;;
    ppc) container_hosts=x86_64 ;;
    ppc64|ppc64le) container_hosts=x86_64 ;;
    riscv64) container_hosts=x86_64 ;;
    s390x) container_hosts=x86_64 ;;
    sh4) container_hosts=x86_64 ;;
    sparc64) container_hosts=x86_64 ;;
    tricore) container_hosts=x86_64 ;;
    x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
    xtensa*) container_hosts=x86_64 ;;
  esac

  for host in $container_hosts; do
    test "$container" != no || continue
    test "$host" = "$cpu" || continue
    case $target_arch in
      aarch64)
        # We don't have any bigendian build tools so we only use this for AArch64
        container_image=debian-arm64-cross
        container_cross_prefix=aarch64-linux-gnu-
        container_cross_cc=${container_cross_prefix}gcc
        ;;
      alpha)
        container_image=debian-legacy-test-cross
        container_cross_prefix=alpha-linux-gnu-
        container_cross_cc=${container_cross_prefix}gcc
        ;;
      arm)
        # We don't have any bigendian build tools so we only use this for ARM
        container_image=debian-armhf-cross
        container_cross_prefix=arm-linux-gnueabihf-
        ;;
      cris)
        container_image=fedora-cris-cross
        container_cross_prefix=cris-linux-gnu-
        ;;
      hexagon)
        container_image=debian-hexagon-cross
        container_cross_prefix=hexagon-unknown-linux-musl-
        container_cross_cc=${container_cross_prefix}clang
        ;;
      hppa)
        container_image=debian-all-test-cross
        container_cross_prefix=hppa-linux-gnu-
        container_cross_cc=${container_cross_prefix}gcc
        ;;
      i386)
        container_image=debian-i686-cross
        container_cross_prefix=i686-linux-gnu-
        ;;
      loongarch64)
        container_image=debian-loongarch-cross
        container_cross_prefix=loongarch64-unknown-linux-gnu-
        ;;
      m68k)
        container_image=debian-all-test-cross
        container_cross_prefix=m68k-linux-gnu-
        container_cross_cc=${container_cross_prefix}gcc
        ;;
      microblaze)
        container_image=debian-microblaze-cross
        container_cross_prefix=microblaze-linux-musl-
        ;;
      mips64el)
        container_image=debian-mips64el-cross
        container_cross_prefix=mips64el-linux-gnuabi64-
        ;;
      mips64)
        container_image=debian-all-test-cross
        container_cross_prefix=mips64-linux-gnuabi64-
        ;;
      mips)
        container_image=debian-all-test-cross
        container_cross_prefix=mips-linux-gnu-
        ;;
      nios2)
        container_image=debian-nios2-cross
        container_cross_prefix=nios2-linux-gnu-
        ;;
      ppc)
        container_image=debian-all-test-cross
        container_cross_prefix=powerpc-linux-gnu-
        container_cross_cc=${container_cross_prefix}gcc
        ;;
      ppc64|ppc64le)
        container_image=debian-all-test-cross
        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
        ;;
      riscv64)
        container_image=debian-all-test-cross
        container_cross_prefix=riscv64-linux-gnu-
        ;;
      sh4)
        container_image=debian-legacy-test-cross
        container_cross_prefix=sh4-linux-gnu-
        ;;
      sparc64)
        container_image=debian-all-test-cross
        container_cross_prefix=sparc64-linux-gnu-
        ;;
      tricore)
        container_image=debian-tricore-cross
        container_cross_prefix=tricore-
        ;;
      x86_64)
        container_image=debian-amd64-cross
        container_cross_prefix=x86_64-linux-gnu-
        ;;
      xtensa*)
        container_image=debian-xtensa-cross

        # default to the dc232b cpu
        container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
        ;;
      *)
        # Debian and GNU architecture names usually match
        container_image=debian-$target_arch-cross
        container_cross_prefix=$target_arch-linux-gnu-
        ;;
    esac
    : ${container_cross_cc:=${container_cross_prefix}gcc}
    : ${container_cross_ar:=${container_cross_prefix}ar}
    : ${container_cross_as:=${container_cross_prefix}as}
    : ${container_cross_ld:=${container_cross_prefix}ld}
    : ${container_cross_nm:=${container_cross_prefix}nm}
    : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
    : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
    : ${container_cross_strip:=${container_cross_prefix}strip}
  done

  try=cross
  # For softmmu/roms we might be able to use the host compiler
  if [ "${1%softmmu}" != "$1" ]; then
      case "$target_arch:$cpu" in
        aarch64_be:aarch64 | \
        armeb:arm | \
        i386:x86_64 | \
        mips*:mips64 | \
        ppc*:ppc64 | \
        sparc:sparc64 | \
        "$cpu:$cpu")
        try='native cross' ;;
      esac
  fi
  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
  for thistry in $try; do
    case $thistry in
    native)
      target_cc=$cc
      target_ccas=$ccas
      target_ar=$ar
      target_as=$as
      target_ld=$ld
      target_nm=$nm
      target_objcopy=$objcopy
      target_ranlib=$ranlib
      target_strip=$strip
      ;;
    cross)
      target_cc=
      if eval test -n "\"\${cross_cc_$target_arch}\""; then
        if eval has "\"\${cross_cc_$target_arch}\""; then
          eval "target_cc=\"\${cross_cc_$target_arch}\""
        fi
      else
        compute_target_variable $target_arch target_cc gcc
      fi
      target_ccas=$target_cc
      compute_target_variable $target_arch target_ar ar
      compute_target_variable $target_arch target_as as
      compute_target_variable $target_arch target_ld ld
      compute_target_variable $target_arch target_nm nm
      compute_target_variable $target_arch target_objcopy objcopy
      compute_target_variable $target_arch target_ranlib ranlib
      compute_target_variable $target_arch target_strip strip
      ;;
    esac

    if test -n "$target_cc"; then
      case $target_arch in
        i386|x86_64)
          if $target_cc --version | grep -qi "clang"; then
            continue
          fi
          ;;
      esac
    elif test -n "$target_as" && test -n "$target_ld"; then
      # Special handling for assembler only targets
      case $target in
        tricore-softmmu)
          build_static=
          got_cross_cc=yes
          break
          ;;
        *)
          continue
          ;;
      esac
    else
      continue
    fi

    write_c_skeleton
    case $1 in
      *-softmmu)
        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
          got_cross_cc=yes
          break
        fi
        ;;
      *)
        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
          build_static=y
          got_cross_cc=yes
          break
        fi
        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
          build_static=
          got_cross_cc=yes
          break
        fi
        ;;
    esac
  done
  if test $got_cross_cc != yes; then
    build_static=
    target_cc=
    target_ccas=
    target_ar=
    target_as=
    target_ld=
    target_nm=
    target_objcopy=
    target_ranlib=
    target_strip=
  fi
  test -n "$target_cc"
}

write_target_makefile() {
  echo "EXTRA_CFLAGS=$target_cflags"
  if test -z "$target_cc" && test -z "$target_as"; then
    test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
    echo "$1: docker-image-$container_image" >> Makefile.prereqs
    if test -n "$container_cross_cc"; then
      echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
      echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
    fi
    echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
    echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
    echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
    echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
    echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
    echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
    echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
  else
    if test -n "$target_cc"; then
      echo "CC=$target_cc"
      echo "CCAS=$target_ccas"
    fi
    if test -n "$target_ar"; then
      echo "AR=$target_ar"
    fi
    if test -n "$target_as"; then
      echo "AS=$target_as"
    fi
    if test -n "$target_ld"; then
      echo "LD=$target_ld"
    fi
    if test -n "$target_nm"; then
      echo "NM=$target_nm"
    fi
    if test -n "$target_objcopy"; then
      echo "OBJCOPY=$target_objcopy"
    fi
    if test -n "$target_ranlib"; then
      echo "RANLIB=$target_ranlib"
    fi
    if test -n "$target_strip"; then
      echo "STRIP=$target_strip"
    fi
  fi
}

#######################################
# cross-compiled firmware targets

# Set up build tree symlinks that point back into the source tree
# (these can be both files and directories).
# Caution: avoid adding files or directories here using wildcards. This
# will result in problems later if a new file matching the wildcard is
# added to the source tree -- nothing will cause configure to be rerun
# so the build tree will be missing the link back to the new file, and
# tests might fail. Prefer to keep the relevant files in their own
# directory and symlink the directory instead.
LINKS="Makefile"
LINKS="$LINKS docs/config"
LINKS="$LINKS pc-bios/optionrom/Makefile"
LINKS="$LINKS pc-bios/s390-ccw/Makefile"
LINKS="$LINKS pc-bios/vof/Makefile"
LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
LINKS="$LINKS tests/avocado tests/data"
LINKS="$LINKS tests/qemu-iotests/check"
LINKS="$LINKS python"
LINKS="$LINKS contrib/plugins/Makefile "
for f in $LINKS ; do
    if [ -e "$source_path/$f" ]; then
        symlink "$source_path/$f" "$f"
    fi
done

echo "# Automatically generated by configure - do not modify" > Makefile.prereqs

# Mac OS X ships with a broken assembler
if have_target i386-softmmu x86_64-softmmu && \
        test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
        test "$targetos" != "haiku" && \
        probe_target_compiler i386-softmmu; then
    subdirs="$subdirs pc-bios/optionrom"
    config_mak=pc-bios/optionrom/config.mak
    echo "# Automatically generated by configure - do not modify" > $config_mak
    echo "TOPSRC_DIR=$source_path" >> $config_mak
    write_target_makefile >> $config_mak
fi

if have_target ppc-softmmu ppc64-softmmu && \
        probe_target_compiler ppc-softmmu; then
    subdirs="$subdirs pc-bios/vof"
    config_mak=pc-bios/vof/config.mak
    echo "# Automatically generated by configure - do not modify" > $config_mak
    echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
    write_target_makefile >> $config_mak
fi

# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
# (which is the lowest architecture level that Clang supports)
if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
    GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
  write_c_skeleton
  do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
  has_z900=$?
  if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
    if [ $has_z900 != 0 ]; then
      echo "WARNING: Your compiler does not support the z900!"
      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
    fi
    subdirs="$subdirs pc-bios/s390-ccw"
    config_mak=pc-bios/s390-ccw/config-host.mak
    echo "# Automatically generated by configure - do not modify" > $config_mak
    echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
    echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
    write_target_makefile >> $config_mak
  fi
fi

#######################################
# generate config-host.mak

config_host_mak="config-host.mak"

echo "# Automatically generated by configure - do not modify" > $config_host_mak
echo >> $config_host_mak

echo all: >> $config_host_mak

echo "SRC_PATH=$source_path" >> $config_host_mak
echo "TARGET_DIRS=$target_list" >> $config_host_mak
echo "GDB=$gdb_bin" >> $config_host_mak
if test "$container" != no; then
    echo "RUNC=$runc" >> $config_host_mak
fi
echo "SUBDIRS=$subdirs" >> $config_host_mak
echo "PYTHON=$python" >> $config_host_mak
echo "MKVENV_ENSUREGROUP=$mkvenv ensuregroup $mkvenv_online_flag" >> $config_host_mak
echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
echo "MESON=$meson" >> $config_host_mak
echo "NINJA=$ninja" >> $config_host_mak
echo "EXESUF=$EXESUF" >> $config_host_mak

# use included Linux headers for KVM architectures
if test "$targetos" = "linux" && test -n "$linux_arch"; then
  symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
fi

for target in $target_list; do
    target_dir="$target"
    target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
    case $target in
        *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
        *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
    esac
done

if test "$default_targets" = "yes"; then
  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
fi

# contrib/plugins configuration
echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
if test "$targetos" = windows; then
  echo "DLLTOOL=$dlltool" >> contrib/plugins/$config_host_mak
fi
if test "$targetos" = darwin; then
  echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
fi
if test "$targetos" = windows; then
  echo "CONFIG_WIN32=y" >> contrib/plugins/$config_host_mak
fi

# tests/tcg configuration
(config_host_mak=tests/tcg/config-host.mak
mkdir -p tests/tcg
echo "# Automatically generated by configure - do not modify" > $config_host_mak
echo "SRC_PATH=$source_path" >> $config_host_mak

tcg_tests_targets=
for target in $target_list; do
  arch=${target%%-*}

  case $target in
    xtensa*-linux-user)
      # the toolchain is not complete with headers, only build system tests
      continue
      ;;
    *-softmmu)
      test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
      qemu="qemu-system-$arch"
      ;;
    *-linux-user|*-bsd-user)
      qemu="qemu-$arch"
      ;;
  esac

  if probe_target_compiler $target || test -n "$container_image"; then
      test -n "$container_image" && build_static=y
      mkdir -p "tests/tcg/$target"
      config_target_mak=tests/tcg/$target/config-target.mak
      ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
      echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
      echo "TARGET_NAME=$arch" >> "$config_target_mak"
      echo "TARGET=$target" >> "$config_target_mak"
      write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
      echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
      echo "QEMU=$PWD/$qemu" >> "$config_target_mak"

      # will GDB work with these binaries?
      if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
          echo "GDB=$gdb_bin" >> $config_target_mak
      fi

      echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
      tcg_tests_targets="$tcg_tests_targets $target"
  fi
done

if test "$tcg" = "enabled"; then
    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
fi
)

if test "$skip_meson" = no; then
  cross="config-meson.cross.new"
  meson_quote() {
    test $# = 0 && return
    echo "'$(echo $* | sed "s/ /','/g")'"
  }

  echo "# Automatically generated by configure - do not modify" > $cross
  echo "[properties]" >> $cross

  # unroll any custom device configs
  for a in $device_archs; do
      eval "c=\$devices_${a}"
      echo "${a}-softmmu = '$c'" >> $cross
  done

  echo "[built-in options]" >> $cross
  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
  test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross

  # Only enable by default for git builds and on select OSes
  echo "# environment defaults, can still be overridden on " >> $cross
  echo "# the command line" >> $cross
  if test -e "$source_path/.git" && \
      { test "$targetos" = linux || test "$targetos" = "windows"; }; then
      echo 'werror = true' >> $cross
  fi
  echo "[project options]" >> $cross
  if test "$SMBD" != ''; then
    echo "smbd = $(meson_quote "$SMBD")" >> $cross
  fi
  if test "${QEMU_GA_MANUFACTURER}" != ''; then
    echo "qemu_ga_manufacturer = $(meson_quote "${QEMU_GA_MANUFACTURER}")" >> $cross
  fi
  if test "${QEMU_GA_DISTRO}" != ''; then
    echo "qemu_ga_distro = $(meson_quote "${QEMU_GA_DISTRO}")" >> $cross
  fi
  if test "${QEMU_GA_VERSION}" != ''; then
    echo "qemu_ga_version = $(meson_quote "${QEMU_GA_VERSION}")" >> $cross
  fi

  echo >> $cross
  echo "[binaries]" >> $cross
  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
  echo "ar = [$(meson_quote $ar)]" >> $cross
  echo "dlltool = [$(meson_quote $dlltool)]" >> $cross
  echo "nm = [$(meson_quote $nm)]" >> $cross
  echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
  echo "pkg-config = [$(meson_quote $pkg_config)]" >> $cross
  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
  if has $sdl2_config; then
    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
  fi
  echo "strip = [$(meson_quote $strip)]" >> $cross
  echo "widl = [$(meson_quote $widl)]" >> $cross
  echo "windres = [$(meson_quote $windres)]" >> $cross
  echo "windmc = [$(meson_quote $windmc)]" >> $cross
  if test "$cross_compile" = "yes"; then
    echo "[host_machine]" >> $cross
    echo "system = '$targetos'" >> $cross
    case "$cpu" in
        i386)
            echo "cpu_family = 'x86'" >> $cross
            ;;
        *)
            echo "cpu_family = '$cpu'" >> $cross
            ;;
    esac
    echo "cpu = '$cpu'" >> $cross
    if test "$bigendian" = "yes" ; then
        echo "endian = 'big'" >> $cross
    else
        echo "endian = 'little'" >> $cross
    fi

    native="config-meson.native.new"
    echo "# Automatically generated by configure - do not modify" > $native
    echo "[binaries]" >> $native
    echo "c = [$(meson_quote $host_cc)]" >> $native
    mv $native config-meson.native
    meson_option_add --native-file
    meson_option_add config-meson.native
  fi
  mv $cross config-meson.cross
  meson_add_machine_file config-meson.cross
  if test -f "$source_path/configs/meson/$targetos.txt"; then
    meson_add_machine_file $source_path/configs/meson/$targetos.txt
  fi

  rm -rf meson-private meson-info meson-logs

  test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
  test "$default_feature" = no && meson_option_add -Dauto_features=disabled
  test "$static" = yes && meson_option_add -Dprefer_static=true
  test "$pie" = no && meson_option_add -Db_pie=false

  # QEMU options
  test "$cfi" != false && meson_option_add "-Dcfi=$cfi" "-Db_lto=$cfi"
  test "$docs" != auto && meson_option_add "-Ddocs=$docs"
  test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
  test "$plugins" = yes && meson_option_add "-Dplugins=true"
  test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
  run_meson() {
    NINJA=$ninja $meson setup "$@" "$PWD" "$source_path"
  }
  eval run_meson $meson_options
  if test "$?" -ne 0 ; then
      error_exit "meson setup failed"
  fi
  echo "$meson" > build.ninja.stamp
else
  if test -f meson-private/cmd_line.txt; then
    # Adjust old command line options that were removed
    # sed -i is not portable
    perl -i -ne '
      /^sphinx_build/ && next;
      print;' meson-private/cmd_line.txt
  fi
fi

# Save the configure command line for later reuse.
cat <<EOD >config.status
#!/bin/sh
# Generated by configure.
# Run this file to recreate the current configuration.
# Compiler output produced by configure, useful for debugging
# configure, is in config.log if it exists.
EOD

preserve_env() {
    envname=$1

    eval envval=\$$envname

    if test -n "$envval"
    then
	echo "$envname='$envval'" >> config.status
	echo "export $envname" >> config.status
    else
	echo "unset $envname" >> config.status
    fi
}

# Preserve various env variables that influence what
# features/build target configure will detect
preserve_env AR
preserve_env AS
preserve_env CC
preserve_env CFLAGS
preserve_env CXX
preserve_env CXXFLAGS
preserve_env DLLTOOL
preserve_env LD
preserve_env LDFLAGS
preserve_env LD_LIBRARY_PATH
preserve_env NM
preserve_env OBJCFLAGS
preserve_env OBJCOPY
preserve_env PATH
preserve_env PKG_CONFIG
preserve_env PKG_CONFIG_LIBDIR
preserve_env PKG_CONFIG_PATH
preserve_env PYTHON
preserve_env QEMU_GA_MANUFACTURER
preserve_env QEMU_GA_DISTRO
preserve_env QEMU_GA_VERSION
preserve_env SDL2_CONFIG
preserve_env SMBD
preserve_env STRIP
preserve_env WIDL
preserve_env WINDRES
preserve_env WINDMC

printf "exec" >>config.status
for i in "$0" "$@"; do
  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
done
echo ' "$@"' >>config.status
chmod +x config.status

rm -r "$TMPDIR1"