summaryrefslogtreecommitdiff
path: root/configure
blob: cd3b600dabf576f1a8e5ca494c95455ec417105b (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
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
#!/bin/sh
#
# FFmpeg configure script
#
# Copyright (c) 2000, 2001, 2002 Fabrice Bellard
# Copyright (c) 2005-2006 Diego Biurrun
# Copyright (c) 2005-2006 Mans Rullgard
#

# make sure we are running under a compatible shell
# try to make this part work with most shells

try_exec(){
    echo "Trying shell $1"
    type "$1" > /dev/null 2>&1 && exec "$@"
}

unset foo
(: ${foo%%bar}) 2> /dev/null
E1="$?"

(: ${foo?}) 2> /dev/null
E2="$?"

if test "$E1" != 0 || test "$E2" = 0; then
    echo "Broken shell detected.  Trying alternatives."
    export FF_CONF_EXEC
    if test "0$FF_CONF_EXEC" -lt 1; then
        FF_CONF_EXEC=1
        try_exec bash "$0" "$@"
    fi
    if test "0$FF_CONF_EXEC" -lt 2; then
        FF_CONF_EXEC=2
        try_exec ksh "$0" "$@"
    fi
    if test "0$FF_CONF_EXEC" -lt 3; then
        FF_CONF_EXEC=3
        try_exec /usr/xpg4/bin/sh "$0" "$@"
    fi
    echo "No compatible shell script interpreter found."
    echo "This configure script requires a POSIX-compatible shell"
    echo "such as bash or ksh."
    echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
    echo "Instead, install a working POSIX-compatible shell."
    echo "Disabling this configure test will create a broken FFmpeg."
    if test "$BASH_VERSION" = '2.04.0(1)-release'; then
        echo "This bash version ($BASH_VERSION) is broken on your platform."
        echo "Upgrade to a later version if available."
    fi
    exit 1
fi

show_help(){
  echo "Usage: configure [options]"
  echo "Options: [defaults in brackets after descriptions]"
  echo
  echo "Standard options:"
  echo "  --help                   print this message"
  echo "  --logfile=FILE           log tests and output to FILE [config.err]"
  echo "  --disable-logging        do not log configure debug information"
  echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
  echo "  --bindir=DIR             install binaries in DIR [PREFIX/bin]"
  echo "  --libdir=DIR             install libs in DIR [PREFIX/lib]"
  echo "  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]"
  echo "  --incdir=DIR             install includes in DIR [PREFIX/include]"
  echo "  --mandir=DIR             install man page in DIR [PREFIX/share/man]"
  echo "  --enable-static          build static libraries [default=yes]"
  echo "  --disable-static         do not build static libraries [default=no]"
  echo "  --enable-shared          build shared libraries [default=no]"
  echo "  --disable-shared         do not build shared libraries [default=yes]"
  echo "  --enable-gpl             allow use of GPL code, the resulting libav*"
  echo "                           and ffmpeg will be under GPL [default=no]"
  echo "  --enable-nonfree         allow use of nonfree code, the resulting libav*"
  echo "                           and ffmpeg will be unredistributable [default=no]"
  echo "  --enable-postproc        enable GPLed postprocessing support [default=no]"
  echo "  --enable-swscale         software scaler support [default=no]"
  echo "  --enable-avfilter        video filter support (replaces vhook) [default=no]"
  echo "  --enable-avfilter-lavf   video filters dependant on avformat [default=no]"
  echo "  --enable-beosthreads     use BeOS threads [default=no]"
  echo "  --enable-os2threads      use OS/2 threads [default=no]"
  echo "  --enable-pthreads        use pthreads [default=no]"
  echo "  --enable-w32threads      use Win32 threads [default=no]"
  echo "  --enable-x11grab         enable X11 grabbing [default=no]"
  echo
  echo "External library support:"
  echo "  --enable-mlib            use Sun medialib [default=no]"
  echo "  --enable-liba52          enable GPLed liba52 support [default=no]"
  echo "  --enable-liba52bin       open liba52.so.0 at runtime [default=no]"
  echo "  --enable-avisynth        allow reading AVISynth script files [default=no]"
  echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec"
  echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec"
  echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
  echo "                           and libraw1394 [default=no]"
  echo "  --enable-libdirac        enable Dirac support via libdirac [default=no]"
  echo "  --enable-libfaac         enable FAAC support via libfaac [default=no]"
  echo "  --enable-libfaad         enable FAAD support via libfaad [default=no]"
  echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [default=no]"
  echo "  --enable-libgsm          enable GSM support via libgsm [default=no]"
  echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [default=no]"
  echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
  echo "                           native demuxer exists [default=no]"
  echo "  --enable-libschroedinger enable Dirac support via libschroedinger [default=no]"
  echo "  --enable-libtheora       enable Theora encoding via libtheora [default=no]"
  echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
  echo "                           native implementation exists [default=no]"
  echo "  --enable-libx264         enable H.264 encoding via x264 [default=no]"
  echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
  echo "                           native MPEG-4/Xvid encoder exists [default=no]"
  echo ""
  echo "Advanced options (experts only):"
  echo "  --source-path=PATH       path to source code [$source_path]"
  echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
  echo "  --enable-cross-compile   assume a cross-compiler is used"
  echo "  --target-os=OS           compiler targets OS [$target_os]"
  echo "  --cc=CC                  use C compiler CC [$cc]"
  echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
  echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
  echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
  echo "  --build-suffix=SUFFIX    suffix for application specific build []"
  echo "  --arch=ARCH              select architecture  [$arch]"
  echo "  --cpu=CPU                selects the minimum cpu required (affects"
  echo "                           instruction selection, may crash on older CPUs)"
  echo "  --enable-powerpc-perf    enable performance report on PPC"
  echo "                           (requires enabling PMC)"
  echo "  --disable-mmx            disable MMX usage"
  echo "  --disable-mmx2           disable MMX2 usage"
  echo "  --disable-ssse3          disable SSSE3 usage"
  echo "  --disable-armv5te        disable armv5te usage"
  echo "  --disable-armv6          disable armv6 usage"
  echo "  --disable-armvfp         disable ARM VFP usage"
  echo "  --disable-iwmmxt         disable iwmmxt usage"
  echo "  --disable-altivec        disable AltiVec usage"
  echo "  --disable-network        disable network support [default=no]"
  echo "  --disable-ipv6           disable ipv6 support [default=no]"
  echo "  --disable-zlib           disable zlib [default=no]"
  echo "  --disable-bzlib          disable bzlib [default=no]"
  echo "  --disable-vhook          disable video hooking support"
  echo "  --disable-debug          disable debugging symbols"
  echo "  --disable-mpegaudio-hp   faster (but less accurate)"
  echo "                           MPEG audio decoding [default=no]"
  echo "  --enable-gray            enable full grayscale support (slower color)"
  echo "  --disable-ffmpeg         disable ffmpeg build"
  echo "  --disable-ffserver       disable ffserver build"
  echo "  --disable-ffplay         disable ffplay build"
  echo "  --enable-small           optimize for size instead of speed"
  echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
  echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
  echo "  --disable-encoder=NAME   disables encoder NAME"
  echo "  --enable-encoder=NAME    enables encoder NAME"
  echo "  --disable-decoder=NAME   disables decoder NAME"
  echo "  --enable-decoder=NAME    enables decoder NAME"
  echo "  --disable-encoders       disables all encoders"
  echo "  --disable-decoders       disables all decoders"
  echo "  --disable-muxer=NAME     disables muxer NAME"
  echo "  --enable-muxer=NAME      enables muxer NAME"
  echo "  --disable-muxers         disables all muxers"
  echo "  --disable-demuxer=NAME   disables demuxer NAME"
  echo "  --enable-demuxer=NAME    enables demuxer NAME"
  echo "  --disable-demuxers       disables all demuxers"
  echo "  --enable-parser=NAME     enables parser NAME"
  echo "  --disable-parser=NAME    disables parser NAME"
  echo "  --disable-parsers        disables all parsers"
  echo "  --enable-bsf=NAME        enables bitstream filter NAME"
  echo "  --disable-bsf=NAME       disables bitstream filter NAME"
  echo "  --disable-bsfs           disables all bitstream filters"
  echo "  --enable-protocol=NAME   enables protocol NAME"
  echo "  --disable-protocol=NAME  disables protocol NAME"
  echo "  --disable-protocols      disables all protocols"
  echo "  --disable-devices        disables all devices"
  echo "  --list-decoders          show all available decoders"
  echo "  --list-encoders          show all available encoders"
  echo "  --list-muxers            show all available muxers"
  echo "  --list-demuxers          show all available demuxers"
  echo "  --list-parsers           show all available parsers"
  echo "  --list-protocols         show all available protocols"
  echo "  --list-bsfs              show all available bitstream filters"
  echo "  --list-indevs            show all available input devices"
  echo "  --list-outdevs           show all available output devices"
  echo
  echo "Developer options (useful when working on FFmpeg itself):"
  echo "  --enable-gprof           enable profiling with gprof [$gprof]"
  echo "  --disable-optimizations  disable compiler optimizations"
  echo "  --enable-extra-warnings  enable more compiler warnings"
  echo "  --disable-stripping      disable stripping of executables and shared libraries"
  echo ""
  echo "NOTE: Object files are built at the place where configure is launched."
  exit 1
}

log(){
    echo "$@" >> $logfile
}

log_file(){
    log BEGIN $1
    pr -n -t $1 >> $logfile
    log END $1
}

echolog(){
    log "$@"
    echo "$@"
}

die(){
    echolog "$@"
    cat <<EOF
If you think configure made a mistake, make sure you are using the latest
version from SVN.  If the latest version fails, report the problem to the
ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
EOF
    if disabled logging; then
        cat <<EOF
Rerun configure with logging enabled (do not use --disable-logging), and
include the log this produces with your report.
EOF
    else
cat <<EOF
Include the log file "$logfile" produced by configure as this will help
solving the problem.
EOF
    fi
    rm -f $TMPC $TMPE $TMPH $TMPO $TMPS $TMPSH
    exit 1
}

# Avoid locale weirdness, besides we really just want to translate ASCII.
toupper(){
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
}

tolower(){
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
}

set_all(){
    value=$1
    shift
    for var in $*; do
        eval $var=$value
    done
}

pushvar(){
    for var in $*; do
        eval level=\${${var}_level:=0}
        eval ${var}_${level}="\$$var"
        eval ${var}_level=$(($level+1))
    done
}

popvar(){
    for var in $*; do
        eval level=\${${var}_level:-0}
        test $level = 0 && continue
        eval level=$(($level-1))
        eval $var="\${${var}_${level}}"
        eval ${var}_level=$level
        eval unset ${var}_${level}
    done
}

enable(){
    set_all yes $*
}

disable(){
    set_all no $*
}

enabled(){
    eval test "x\$$1" = "xyes"
}

disabled(){
    eval test "x\$$1" = "xno"
}

enabled_all(){
    for opt; do
        enabled $opt || return 1
    done
}

disabled_all(){
    for opt; do
        disabled $opt || return 1
    done
}

enabled_any(){
    for opt; do
        enabled $opt && return 0
    done
}

disabled_any(){
    for opt; do
        disabled $opt && return 0
    done
}

set_default(){
    for opt; do
        eval test -z "\$$opt" && eval $opt=\$${opt}_default
    done
}

is_in(){
    value=$1
    shift
    for var in $*; do
        [ $var = $value ] && return 0
    done
    return 1
}

check_deps(){
    for cfg; do
        enabled ${cfg}_checking && die "Circular dependency for $cfg."
        disabled ${cfg}_checking && continue
        enable ${cfg}_checking

        eval dep_all="\$${cfg}_deps"
        eval dep_any="\$${cfg}_deps_any"

        pushvar cfg dep_all dep_any
        check_deps $dep_all $dep_any
        popvar cfg dep_all dep_any

        enabled_all $dep_all || disable $cfg
        enabled_any $dep_any || disable $cfg

        if enabled $cfg; then
            eval dep_extralibs="\$${cfg}_extralibs"
            test -n "$dep_extralibs" && add_extralibs $dep_extralibs
        fi

        disable ${cfg}_checking
    done
}

print_config(){
    pfx=$1
    header=$2
    makefile=$3
    shift 3
    for cfg; do
        ucname="`toupper $cfg`"
        if enabled $cfg; then
            echo "#define ${pfx}${ucname} 1" >> $header
            echo "#define ENABLE_${ucname} 1" >> $header
            echo "${pfx}${ucname}=yes" >> $makefile
        else
            echo "#define ENABLE_${ucname} 0" >> $header
        fi
    done
}

flags_saved(){
    (: ${SAVE_CFLAGS?}) 2> /dev/null
}

save_flags(){
    flags_saved && return
    SAVE_CFLAGS="$CFLAGS"
    SAVE_LDFLAGS="$LDFLAGS"
    SAVE_extralibs="$extralibs"
}

restore_flags(){
    flags_saved || return
    CFLAGS="$SAVE_CFLAGS"
    LDFLAGS="$SAVE_LDFLAGS"
    extralibs="$SAVE_extralibs"
    unset SAVE_CFLAGS
    unset SAVE_LDFLAGS
    unset SAVE_extralibs
}

temp_cflags(){
    save_flags
    CFLAGS="$CFLAGS $*"
}

temp_ldflags(){
    save_flags
    LDFLAGS="$LDFLAGS $*"
}

temp_extralibs(){
    save_flags
    extralibs="$extralibs $*"
}

append(){
    var=$1
    shift
    flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
    eval "$var=\"\$$var $*\""
}

add_cflags(){
    append CFLAGS "$@"
}

add_ldflags(){
    append LDFLAGS "$@"
}

add_extralibs(){
    append extralibs "$@"
}

check_cmd(){
    log "$@"
    "$@" >> $logfile 2>&1
}

check_cc(){
    log check_cc "$@"
    cat > $TMPC
    log_file $TMPC
    check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
}

check_cpp(){
    log check_cpp "$@"
    cat > $TMPC
    log_file $TMPC
    check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
}

check_asm(){
    log check_asm "$@"
    name="$1"
    asm="$2"
    shift 2
    check_cc "$@" <<EOF && enable $name || disable $name
int foo(void){ asm volatile($asm); }
EOF
}

check_ld(){
    log check_ld "$@"
    check_cc || return
    flags=''
    libs=''
    for f; do
        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
    done
    check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
}

check_cflags(){
    log check_cflags "$@"
    check_cc "$@" <<EOF && add_cflags "$@"
int x;
EOF
}

check_ldflags(){
    log check_ldflags "$@"
    check_ld "$@" <<EOF && add_ldflags "$@"
int main(void){ return 0; }
EOF
}

check_header(){
    log check_header "$@"
    header=$1
    shift
    var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
    disable $var
    check_cpp "$@" <<EOF && enable $var
#include <$header>
int x;
EOF
}

check_func(){
    log check_func "$@"
    func=$1
    shift
    disable $func
    check_ld "$@" <<EOF && enable $func
extern int $func();
int main(void){ $func(); }
EOF
}

check_func2(){
    log check_func2 "$@"
    headers=$1
    func=$2
    shift 2
    disable $func
    incs=""
    for hdr in $headers; do
        incs="$incs
#include <$hdr>"
    done
    check_ld "$@" <<EOF && enable $func
$incs
int main(int argc, char **argv){
    (void) $func;
    return 0;
}
EOF
}

check_lib(){
    log check_lib "$@"
    header="$1"
    func="$2"
    shift 2
    temp_extralibs "$@"
    check_header $header && check_func $func && add_extralibs "$@"
    err=$?
    restore_flags
    return $err
}

check_lib2(){
    log check_lib2 "$@"
    headers="$1"
    func="$2"
    shift 2
    temp_extralibs "$@"
    check_func2 "$headers" $func && add_extralibs "$@"
    err=$?
    restore_flags
    return $err
}

check_exec(){
    check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
}

check_exec_crash(){
    code=`cat`

    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
    # are safe but may not be available everywhere.  Thus we use
    # raise(SIGTERM) instead.  The check is run in a subshell so we
    # can redirect the "Terminated" message from the shell.  SIGBUS
    # is not defined by standard C so it is used conditionally.

    (check_exec "$@") >> $logfile 2>&1 <<EOF
#include <signal.h>
static void sighandler(int sig){
    raise(SIGTERM);
}
int main(void){
    signal(SIGILL, sighandler);
    signal(SIGFPE, sighandler);
    signal(SIGSEGV, sighandler);
#ifdef SIGBUS
    signal(SIGBUS, sighandler);
#endif
    { $code }
}
EOF
}

check_type(){
    log check_type "$@"
    headers=$1
    type=$2
    shift 2
    disable $type
    incs=""
    for hdr in $headers; do
        incs="$incs
#include <$hdr>"
    done
    check_cc "$@" <<EOF && enable $type
$incs
$type v;
EOF
}

require(){
    name="$1"
    header="$2"
    func="$3"
    shift 3
    check_lib $header $func "$@" || die "ERROR: $name not found"
}

require2(){
    name="$1"
    headers="$2"
    func="$3"
    shift 3
    check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
}

check_foo_config(){
    cfg=$1
    pkg=$2
    header=$3
    func=$4
    shift 4
    disable $cfg
    check_cmd ${pkg}-config --version
    err=$?
    if test "$err" = 0; then
        temp_cflags `${pkg}-config --cflags`
        temp_extralibs `${pkg}-config --libs`
        check_lib "$@" $header $func && enable $cfg
    fi
    return $err
}

apply(){
    file=$1
    shift
    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
}

COMPONENT_LIST="
    bsfs
    decoders
    demuxers
    encoders
    filters
    indevs
    muxers
    outdevs
    parsers
    protocols
"

CONFIG_LIST="
    $COMPONENT_LIST
    avfilter
    avfilter_lavf
    avisynth
    beos_netserver
    bzlib
    ffmpeg
    ffplay
    ffserver
    gpl
    gprof
    gray
    hardcoded_tables
    ipv6
    liba52
    liba52bin
    libamr_nb
    libamr_wb
    libdc1394
    libdirac
    libfaac
    libfaad
    libfaadbin
    libgsm
    libmp3lame
    libnut
    libschroedinger
    libtheora
    libvorbis
    libx264
    libxvid
    memalign_hack
    mlib
    mpegaudio_hp
    network
    nonfree
    postproc
    powerpc_perf
    small
    swscale
    vhook
    x11grab
    zlib
"

THREADS_LIST='
    beosthreads
    os2threads
    pthreads
    w32threads
'

ARCH_LIST='
    alpha
    armv4l
    bfin
    ia64
    m68k
    mips
    parisc
    powerpc
    s390
    sh4
    sparc
    sparc64
    x86
    x86_32
    x86_64
'

ARCH_EXT_LIST='
    altivec
    armv5te
    armv6
    armvfp
    iwmmxt
    mmi
    mmx
    mmx2
    neon
    ssse3
    vis
'

HAVE_LIST="
    $ARCH_EXT_LIST
    $THREADS_LIST
    altivec_h
    altivec_vector_braces
    arpa_inet_h
    bswap
    byteswap_h
    closesocket
    cmov
    conio_h
    dcbzl
    dev_bktr_ioctl_bt848_h
    dev_bktr_ioctl_meteor_h
    dev_ic_bt8xx_h
    dev_video_meteor_ioctl_meteor_h
    dev_video_bktr_ioctl_bt848_h
    dlfcn_h
    dlopen
    ebp_available
    ebx_available
    fast_64bit
    fast_cmov
    fast_unaligned
    fork
    freetype2
    gethrtime
    GetProcessTimes
    getrusage
    imlib2
    inet_aton
    inline_asm
    libdc1394_1
    libdc1394_2
    llrint
    lrint
    lrintf
    machine_ioctl_bt848_h
    machine_ioctl_meteor_h
    malloc_h
    memalign
    mkstemp
    pld
    ppc64
    round
    roundf
    sdl
    sdl_video_size
    socklen_t
    soundcard_h
    poll_h
    sys_mman_h
    sys_resource_h
    sys_select_h
    sys_soundcard_h
    termios_h
    threads
    winsock2_h
"

CMDLINE_SELECT="
    $ARCH_EXT_LIST
    $CONFIG_LIST
    $THREADS_LIST
    cross_compile
    debug
    extra_warnings
    logging
    optimizations
    shared
    static
    stripping
"

PATHS_LIST='
    bindir
    incdir
    libdir
    mandir
    prefix
    shlibdir
'

CMDLINE_SET="
    $PATHS_LIST
    arch
    build_suffix
    cc
    cpu
    cross_prefix
    logfile
    source_path
    target_os
"

# code dependency declarations

# architecture extensions
altivec_deps="powerpc"
armv5te_deps="armv4l"
armv6_deps="armv4l"
armvfp_deps="armv4l"
iwmmxt_deps="armv4l"
mmi_deps="mips"
mmx_deps="x86"
mmx2_deps="x86 mmx"
neon_deps="armv4l"
ssse3_deps="x86"
vis_deps="sparc"

# decoders / encoders
ac3_decoder_deps="gpl"
dxa_decoder_deps="zlib"
flashsv_decoder_deps="zlib"
flashsv_encoder_deps="zlib"
mpeg_xvmc_decoder_deps="xvmc"
png_decoder_deps="zlib"
png_encoder_deps="zlib"
zmbv_decoder_deps="zlib"
zmbv_encoder_deps="zlib"

# external libraries
liba52_decoder_deps="liba52"
liba52bin_decoder_extralibs='$ldl'
libamr_nb_decoder_deps="libamr_nb"
libamr_nb_encoder_deps="libamr_nb"
libamr_wb_decoder_deps="libamr_wb"
libamr_wb_encoder_deps="libamr_wb"
libdirac_decoder_deps="libdirac"
libdirac_encoder_deps="libdirac"
libfaac_encoder_deps="libfaac"
libfaad_decoder_deps="libfaad"
libfaadbin_decoder_extralibs='$ldl'
libgsm_decoder_deps="libgsm"
libgsm_encoder_deps="libgsm"
libgsm_ms_decoder_deps="libgsm"
libgsm_ms_encoder_deps="libgsm"
libmp3lame_encoder_deps="libmp3lame"
libschroedinger_decoder_deps="libschroedinger"
libschroedinger_encoder_deps="libschroedinger"
libtheora_encoder_deps="libtheora"
libvorbis_encoder_deps="libvorbis"
libx264_encoder_deps="libx264"
libxvid_encoder_deps="libxvid"
mpeg4aac_decoder_deps="libfaad"

# demuxers / muxers
ac3_demuxer_deps="ac3_parser"
audio_beos_demuxer_deps="audio_beos"
audio_beos_demuxer_extralibs="-lmedia -lbe"
audio_beos_muxer_deps="audio_beos"
audio_beos_muxer_extralibs="-lmedia -lbe"
avisynth_demuxer_deps="avisynth"
bktr_demuxer_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
dirac_demuxer_deps="dirac_parser"
dv1394_demuxer_deps="dv1394 dv_demuxer"
libdc1394_demuxer_deps="libdc1394"
libnut_demuxer_deps="libnut"
libnut_muxer_deps="libnut"
mp3_demuxer_deps="mpegaudio_parser"
oss_demuxer_deps_any="soundcard_h sys_soundcard_h"
oss_muxer_deps_any="soundcard_h sys_soundcard_h"
redir_demuxer_deps="network"
rtp_muxer_deps="network rtp_protocol"
rtsp_demuxer_deps="sdp_demuxer"
sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
v4l_demuxer_deps="linux_videodev_h"
v4l2_demuxer_deps="linux_videodev2_h"
vfwcap_demuxer_deps="capCreateCaptureWindow"
vfwcap_demuxer_extralibs="-lvfw32"
x11_grab_device_demuxer_deps="x11grab XShmCreateImage"
x11_grab_device_demuxer_extralibs="-lX11 -lXext"

# protocols
http_protocol_deps="network"
rtp_protocol_deps="udp_protocol"
tcp_protocol_deps="network"
udp_protocol_deps="network"

# filters
movie_filter_deps="avfilter_lavf"

# programs
ffplay_deps="sdl"
ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
ffserver_extralibs='$ldl'
vhook_extralibs='$ldl'


# default parameters

logfile="config.err"

# installation paths
prefix_default="/usr/local"
bindir_default='${prefix}/bin'
incdir_default='${prefix}/include'
libdir_default='${prefix}/lib'
mandir_default='${prefix}/share/man'
shlibdir_default="$libdir_default"

# toolchain
cc="gcc"
ar="ar"
nm="nm"
ranlib="ranlib"
strip="strip"
asmalign_pot="unknown"
ln_s="ln -sf"

# machine
arch=`uname -m`
cpu="generic"

# OS
target_os=$(tolower $(uname -s))

# libraries
enable bzlib
enable zlib

# configurable options
enable debug
enable ffmpeg
enable ffplay
enable ffserver
enable ipv6
enable mpegaudio_hp
enable network
enable optimizations
enable protocols
enable static
enable stripping
vhook="default"

# build settings
SHFLAGS='-shared -Wl,-soname,$$(@F)'
VHOOKSHFLAGS='$(SHFLAGS)'
LDLATEFLAGS='-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
FFSERVERLDFLAGS=-Wl,-E
LIBPREF="lib"
LIBSUF=".a"
FULLNAME='$(NAME)$(BUILDSUF)'
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
SLIBPREF="lib"
SLIBSUF=".so"
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

# gcc stupidly only outputs the basename of targets with -MM
DEPEND_CMD='$(CC) $(CFLAGS) -MM -MG $< | sed -e "/^\#.*/d" -e "1s,^,$(@D)/,"'

# find source path
source_path="`dirname \"$0\"`"
enable source_path_used
if test -z "$source_path" -o "$source_path" = "." ; then
    source_path="`pwd`"
    disable source_path_used
else
    source_path="`cd \"$source_path\"; pwd`"
    echo "$source_path" | grep -q '[[:blank:]]' &&
        die "Out of tree builds are impossible with whitespace in source path."
fi

FFMPEG_CONFIGURATION="$@"

find_things(){
    thing=$1
    pattern=$2
    file=$source_path/$3
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
}

ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
OUTDEV_LIST=$(find_things   muxer    _MUX     libavdevice/alldevices.c)
INDEV_LIST=$(find_things    demuxer  DEMUX    libavdevice/alldevices.c)
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)

enable $ARCH_EXT_LIST \
       $DECODER_LIST \
       $ENCODER_LIST \
       $PARSER_LIST \
       $BSF_LIST \
       $DEMUXER_LIST \
       $MUXER_LIST \
       $FILTER_LIST \
       $PROTOCOL_LIST \
       $INDEV_LIST \
       $OUTDEV_LIST \

die_unknown(){
    echo "Unknown option \"$1\"."
    echo "See $0 --help for available options."
    exit 1
}

show_list() {
    suffix=_$1
    shift
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
    exit 0
}

for opt do
    optval="${opt#*=}"
    case "$opt" in
    --extra-cflags=*) add_cflags "$optval"
    ;;
    --extra-ldflags=*) add_ldflags "$optval"
    ;;
    --extra-libs=*) add_extralibs "$optval"
    ;;
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
    ;;
    --enable-debug=*) debuglevel="$optval"
    ;;
    --enable-*=*|--disable-*=*)
    eval `echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/'`
    case "$thing" in
        encoder|decoder|muxer|demuxer|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
        *) die_unknown "$opt" ;;
    esac
    ;;
    --enable-?*|--disable-?*)
    eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
    if is_in $option $COMPONENT_LIST; then
        eval $action \$$(toupper ${option%s})_LIST
    elif is_in $option $CMDLINE_SELECT; then
        $action $option
    else
        die_unknown $opt
    fi
    ;;
    --list-*)
        NAME="${opt#--list-}"
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
        NAME=${NAME%s}
        eval show_list $NAME \$$(toupper $NAME)_LIST
    ;;
    --help|-h) show_help
    ;;
    *)
    optname="${opt%=*}"
    optname="${optname#--}"
    optname=$(echo "$optname" | sed 's/-/_/g')
    is_in $optname $CMDLINE_SET || die_unknown $opt
    eval $optname='$optval'
    ;;
    esac
done

disabled logging && logfile=/dev/null

echo "# $0 $@" > $logfile
set >> $logfile

cc="${cross_prefix}${cc}"
ar="${cross_prefix}${ar}"
nm="${cross_prefix}${nm}"
ranlib="${cross_prefix}${ranlib}"
strip="${cross_prefix}${strip}"

# set temporary file name
if test ! -z "$TMPDIR" ; then
    TMPDIR1="${TMPDIR}"
elif test ! -z "$TEMPDIR" ; then
    TMPDIR1="${TEMPDIR}"
else
    TMPDIR1="/tmp"
fi

TMPC="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.c"
TMPE="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}${EXESUF}"
TMPH="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.h"
TMPO="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.o"
TMPS="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.S"
TMPSH="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.sh"

case "$arch" in
    i386|i486|i586|i686|i86pc|BePC)
        arch="x86_32"
        enable fast_unaligned
    ;;
    x86_64|amd64)
        arch="x86_32"
        enable fast_unaligned
        check_cc <<EOF && enable fast_64bit && arch="x86_64"
        int test[sizeof(char*) - 7];
EOF
    ;;
    # armv4l is a subset of armv[567]*l
    arm|armv[4567]*l)
        arch="armv4l"
    ;;
    alpha)
        arch="alpha"
        enable fast_64bit
    ;;
    "Power Macintosh"|ppc|powerpc)
        arch="powerpc"
    ;;
    ppc64)
        arch="powerpc"
        enable fast_64bit
    ;;
    mips|mipsel|IP*)
        arch="mips"
    ;;
    sun4u|sparc64)
        arch="sparc64"
        enable fast_64bit
    ;;
    sparc)
        arch="sparc"
    ;;
    sh4)
        arch="sh4"
    ;;
    parisc)
        arch="parisc"
    ;;
    parisc64)
        arch="parisc"
        enable fast_64bit
    ;;
    s390|s390x)
        arch="s390"
    ;;
    m68k)
        arch="m68k"
    ;;
    ia64)
        arch="ia64"
        enable fast_64bit
    ;;
    bfin)
        arch="bfin"
    ;;
    *)
        arch="unknown"
    ;;
esac

enable $arch
enabled_any x86_32 x86_64 && enable x86
enabled     sparc64       && enable sparc

# OS specific
case $target_os in
    beos|haiku|zeta)
        prefix_default="$HOME/config"
        # helps building libavcodec
        add_cflags "-DPIC -fomit-frame-pointer"
        # 3 gcc releases known for BeOS, each with ugly bugs
        gcc_version="`$cc -v 2>&1 | grep version | cut -d ' ' -f3-`"
        case "$gcc_version" in
          2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
            disable mmx
            ;;
          *20010315*) echo "BeBits gcc"
            add_cflags "-fno-expensive-optimizations"
            ;;
        esac
        SHFLAGS=-nostart
        # enable BeOS things
        enable audio_beos
        # no need for libm, but the inet stuff
        # Check for BONE
        # XXX: actually should check for NOT net_server
        if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
            network_extralibs="-lbind -lsocket"
        else
            enable beos_netserver
            network_extralibs="-lnet"
        fi ;;
    sunos)
        FFSERVERLDFLAGS=""
        SHFLAGS='-shared -Wl,-h,$$(@F)'
        network_extralibs="-lsocket -lnsl"
        ;;
    netbsd)
        oss_demuxer_extralibs="-lossaudio"
        oss_muxer_extralibs="-lossaudio"
        ;;
    openbsd)
        disable need_memalign
        LIBOBJFLAGS='$(PIC)'
        SHFLAGS='-shared'
        SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF).$(LIBVERSION)'
        SLIBNAME_WITH_VERSION='$(SLIBNAME)'
        SLIBNAME_WITH_MAJOR='$(SLIBNAME)'
        oss_demuxer_extralibs="-lossaudio"
        oss_muxer_extralibs="-lossaudio"
        ;;
    freebsd)
        disable need_memalign
        ;;
    bsd/os)
        osextralibs="-lpoll -lgnugetopt"
        strip="strip -d"
        ;;
    darwin)
        disable need_memalign
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
        VHOOKSHFLAGS='-dynamiclib -Wl,-single_module -flat_namespace -undefined suppress -Wl,-install_name,$(SHLIBDIR)/vhook/$$(@F)'
        strip="strip -x"
        FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
        SLIBSUF=".dylib"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
        FFSERVERLDFLAGS=-Wl,-bind_at_load
        ;;
    mingw32*)
        target_os=mingw32
        LIBTARGET=i386
        if test $arch = x86_64; then
            disable need_memalign
            LIBTARGET=x64
        fi
        shlibdir_default="$bindir"
        VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libavutil'
        VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'
        if enabled swscale; then
            VHOOKSHFLAGS="$VHOOKSHFLAGS -L\$(BUILD_ROOT)/libswscale"
            VHOOKLIBS="$VHOOKLIBS -lswscale\$(BUILDSUF)"
        fi
        disable ffserver
        SLIBPREF=""
        SLIBSUF=".dll"
        EXESUF=".exe"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
        SLIB_EXTRA_CMD='-lib /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
        SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
        ;;
    cygwin*)
        target_os=cygwin
        shlibdir_default="$bindir"
        VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libavutil'
        VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'
        if enabled swscale; then
            VHOOKSHFLAGS="$VHOOKSHFLAGS -L\$(BUILD_ROOT)/libswscale"
            VHOOKLIBS="$VHOOKLIBS -lswscale\$(BUILDSUF)"
        fi
        EXESUF=".exe"
        SLIBPREF="cyg"
        SLIBSUF=".dll"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
        ;;
    *-dos|freedos|opendos)
        disable ffplay ffserver vhook
        disable $INDEV_LIST $OUTDEV_LIST
        network_extralibs="-lsocket"
        EXESUF=".exe"
        ;;
    linux)
        LDLATEFLAGS="-Wl,--as-needed $LDLATEFLAGS"
        enable dv1394
        ;;
    irix*)
        target_os=irix
        ranlib="echo ignoring ranlib"
        ;;
    os/2*)
        strip="lxlite"
        ln_s="cp -f"
        EXESUF=".exe"
        FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
        FFSERVERLDFLAGS=""
        LIBSUF="_s.a"
        SLIBPREF=""
        SLIBSUF=".dll"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
          echo PROTMODE >> $(SUBDIR)$(NAME).def; \
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
          echo EXPORTS >> $(SUBDIR)$(NAME).def; \
          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
        disable vhook
        ;;
    interix)
        disable vhook
        ;;

    *)
        target_os="${target_os}-UNKNOWN"
        ;;
esac

set_default $PATHS_LIST

add_extralibs $osextralibs

# Combine FFLDFLAGS and the LDFLAGS environment variable.
LDFLAGS="$FFLDFLAGS $LDFLAGS"

test -n "$cross_prefix" && enable cross_compile

# we need to build at least one lib type
if ! enabled_any static shared; then
    cat <<EOF
At least one library type must be built.
Specify --enable-static to build the static libraries or --enable-shared to
build the shared libraries as well. To only build the shared libraries specify
--disable-static in addition to --enable-shared.
EOF
    exit 1;
fi

disabled static && LIBNAME=""

if enabled_any libfaad libfaadbin ; then
    if check_header faad.h; then
        check_cc << EOF
#include <faad.h>
#ifndef FAAD2_VERSION
ok faad1
#endif
int main(void) { return 0; }
EOF
        test $? = 0 && enable libfaad2
    else
        die "FAAD test failed."
    fi
fi


if ! enabled gpl; then
    die_gpl_disabled(){
        name=$1
        shift
        enabled_any $@ && die "$name is under GPL and --enable-gpl is not specified."
    }
    die_gpl_disabled "The Postprocessing code" postproc
    die_gpl_disabled "liba52"                  liba52
    die_gpl_disabled "libx264"                 libx264
    die_gpl_disabled "libxvidcore"             libxvid
    die_gpl_disabled "FAAD2"                   libfaad2
    die_gpl_disabled "The X11 grabber"         x11grab
    die_gpl_disabled "The software scaler"     swscale
fi

if ! enabled nonfree && enabled_any libamr_nb libamr_wb; then
    die "libamr is nonfree and --enable-nonfree is not specified."
fi

check_deps $ARCH_EXT_LIST

test -z "$need_memalign" && need_memalign="$mmx"

#Darwin CC versions
if test $target_os = darwin; then
    if $cc -v 2>&1 | grep -q xlc; then
        add_cflags "-qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto"
    else
        add_cflags "-pipe"
        check_cflags "-force_cpusubtype_ALL"
        check_cflags "-Wno-sign-compare"
        enabled shared || check_cflags -mdynamic-no-pic
    fi
fi

disabled optimizations || add_cflags -fomit-frame-pointer

# Add processor-specific flags
if test $cpu != "generic"; then
    warn_altivec(){
        $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
    }
    case $cpu in
        601|ppc601|PowerPC601)
            add_cflags "-mcpu=601"
            warn_altivec enabled PPC601
        ;;
        603*|ppc603*|PowerPC603*)
            add_cflags "-mcpu=603"
            warn_altivec enabled PPC603
        ;;
        604*|ppc604*|PowerPC604*)
            add_cflags "-mcpu=604"
            warn_altivec enabled PPC604
        ;;
        G3|g3|75*|ppc75*|PowerPC75*)
            add_cflags "-mcpu=750 -mpowerpc-gfxopt"
            warn_altivec enabled PPC75x
        ;;
        G4|g4|745*|ppc745*|PowerPC745*)
            add_cflags "-mcpu=7450 -mpowerpc-gfxopt"
            warn_altivec disabled PPC745x
        ;;
        74*|ppc74*|PowerPC74*)
            add_cflags "-mcpu=7400 -mpowerpc-gfxopt"
            warn_altivec disabled PPC74xx
        ;;
        G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
            add_cflags "-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
            warn_altivec disabled PPC970
            enable ppc64
        ;;
        Cell|CELL|cell)
            add_cflags "-mcpu=cell"
            warn_altivec disabled Cell
            enable ppc64
        ;;
        # targets that do NOT support conditional mov (cmov)
        i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
            add_cflags "-march=$cpu"
            disable cmov
        ;;
        # targets that do support conditional mov (cmov)
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
            add_cflags "-march=$cpu"
            enable cmov
            enable fast_cmov
        ;;
        # targets that do support conditional mov but on which it's slow
        pentium4|pentium4m|prescott|nocona)
            add_cflags "-march=$cpu"
            enable cmov
            disable fast_cmov
        ;;
        sparc64)
            add_cflags "-mcpu=v9"
        ;;
        arm*|cortex*)
            add_cflags "-mcpu=$cpu"
        ;;
        *)
            echo "WARNING: Unknown CPU \"$cpu\", ignored."
        ;;
    esac
fi

# make sure we can execute files in $TMPDIR
cat > $TMPSH 2>> $logfile <<EOF
#! /bin/sh
EOF
chmod +x $TMPSH >> $logfile 2>&1
if ! $TMPSH >> $logfile 2>&1; then
    cat <<EOF
Unable to create and execute files in $TMPDIR1.  Set the TMPDIR environment
variable to another directory and make sure that $TMPDIR1 is not mounted
noexec.
EOF
    die "Sanity test failed."
fi
rm $TMPSH

# compiler sanity check
check_exec <<EOF
int main(void){ return 0; }
EOF
if test "$?" != 0; then
    echo "$cc is unable to create an executable file."
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
        echo "Only do this if you know what cross compiling means."
    fi
    die "C compiler test failed."
fi

check_cc <<EOF || die "Symbol mangling check failed."
int ff_extern;
EOF
sym=$($nm -P -g $TMPO | grep ff_extern)
extern_prefix=${sym%%ff_extern*}

check_asm inline_asm '""'

if enabled x86; then
    # check whether EBP is available on x86
    # As 'i' is stored on the stack, this program will crash
    # if the base pointer is used to access it because the
    # base pointer is cleared in the inline assembly code.
    check_exec_crash <<EOF && enable ebp_available
    volatile int i=0;
    asm volatile (
        "xorl %%ebp, %%ebp"
    ::: "%ebp");
    return i;
EOF

    # check wether EBX is available on x86
    check_asm ebx_available '"":::"%ebx"'

    # check whether binutils is new enough to compile SSSE3/MMX2
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
    enabled mmx2  && check_asm mmx2  '"movss %xmm0, %xmm0"'

    check_asm bswap '"bswap %%eax" ::: "%eax"'
fi

# check for assembler specific support

if test $arch = "powerpc"; then
check_cc <<EOF && enable dcbzl
int main(void) {
    register long zero = 0;
    char data[1024];
    asm volatile("dcbzl %0, %1" : : "b" (data), "r" (zero));
return 0;
}
EOF
fi

# check for SIMD availability

# AltiVec flags: The FSF version of GCC differs from the Apple version
if enabled altivec; then
    check_cflags -maltivec -mabi=altivec &&
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
        check_cflags -faltivec

    # check if our compiler supports Motorola AltiVec C API
    check_cc <<EOF || disable altivec
$inc_altivec_h
int main(void) {
    vector signed int v1, v2, v3;
    v1 = vec_add(v2,v3);
    return 0;
}
EOF

    # check if our compiler supports braces for vector declarations
    check_cc <<EOF && enable altivec_vector_braces
$inc_altivec_h
#define AVV(x...) {x}
int main (void) { (vector int) AVV(1); return 0; }
EOF
fi

# We have to check if pld is a nop and disable it.
enabled armv4l  && check_asm pld     '"pld [r0]"'
enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc

enabled vis && add_cflags "-mcpu=ultrasparc -mtune=ultrasparc"

# ---
# big/little-endian test
check_cc <<EOF || die "endian test failed"
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
EOF
od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

# ---
# check availability of some header files

if check_func dlopen; then
    ldl=
elif check_func dlopen -ldl; then
    ldl=-ldl
fi

check_func  fork
check_func  gethrtime
check_func  getrusage
check_func  inet_aton $network_extralibs
check_func  memalign
check_func  mkstemp
check_func2 windows.h GetProcessTimes

check_header byteswap.h
check_header conio.h
check_header dlfcn.h
check_header malloc.h
check_header sys/mman.h
check_header sys/resource.h
check_header termios.h

if ! enabled_any memalign memalign_hack && enabled need_memalign ; then
    die "Error, no memalign() but SSE enabled, disable it or use --enable-memalign-hack."
fi

enabled  zlib && check_lib  zlib.h      zlibVersion -lz   || disable  zlib
enabled bzlib && check_lib bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib

# ffserver uses poll(),
# if it's not found we can emulate it using select().
if enabled ffserver; then
    check_header poll.h
    check_header sys/select.h
fi

# check for some common methods of building with pthread support
# do this before the optional library checks as some of them require pthreads
if enabled pthreads; then
    if check_func pthread_create; then
        :
    elif check_func pthread_create -pthread; then
        add_cflags -pthread
        add_extralibs -pthread
    elif check_func pthread_create -pthreads; then
        add_cflags -pthreads
        add_extralibs -pthreads
    elif check_func pthread_create -lpthreadGC2; then
        add_extralibs -lpthreadGC2
    elif ! check_lib pthread.h pthread_create -lpthread; then
        die "ERROR: can't find pthreads library"
    fi
fi

for thread in $THREADS_LIST; do
    if enabled $thread; then
        test -n "$thread_type" &&
            die "ERROR: Only one thread type must be selected." ||
            thread_type="$thread"
    fi
done

check_lib math.h sin -lm

# test for C99 functions in math.h
for func in llrint lrint lrintf round roundf; do
    check_exec <<EOF && enable $func || disable $func
#define _ISOC9X_SOURCE  1
#include <math.h>
int main(void) { return ($func(3.999f) > 0)?0:1; }
EOF
done

# these are off by default, so fail if requested and not available
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
enabled liba52     && require  liba52 a52dec/a52.h a52_init -la52
enabled libamr_nb  && require  libamrnb amrnb/interf_dec.h Speech_Decode_Frame_init -lamrnb -lm
enabled libamr_wb  && require  libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
enabled libdirac   && add_cflags "$(pkg-config --cflags dirac)" \
                   && require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder \
                   && require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
enabled libmp3lame && require  LAME lame/lame.h lame_init -lmp3lame -lm
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) \
                        && require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
enabled libx264    && require  x264 x264.h x264_encoder_open -lx264 -lm
enabled libxvid    && require  Xvid xvid.h xvid_global -lxvidcore
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib

# disable the native AC-3 decoder if liba52 is enabled
enabled liba52 && disable ac3_decoder

# disable the slower libdirac decoder if libschroedinger is enabled
enabled libschroedinger && enabled libdirac && disable libdirac_decoder

# libdc1394 check
if enabled libdc1394; then
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
        enable libdc1394_2; } ||
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
        enable libdc1394_1; } ||
    die "ERROR: No version of libdc1394 found "
fi


_restrict=
for restrict_keyword in restrict __restrict__ __restrict; do
    check_cc <<EOF && _restrict=$restrict_keyword && break
void foo(char * $restrict_keyword p);
EOF
done

test "$vhook" = "default" && vhook="$dlopen"

if test "$target_os" = cygwin -o "$target_os" = mingw32 && enabled_all static vhook ; then
    disable vhook
    echo
    echo "At the moment vhooks don't work on Cygwin or MinGW static builds."
    echo "Patches welcome."
    echo
fi

if enabled vhook; then
    check_ldflags -rdynamic
    check_ldflags -export-dynamic
fi

check_foo_config imlib2 imlib2 Imlib2.h imlib_load_font
check_foo_config freetype2 freetype ft2build.h FT_Init_FreeType

##########################################
# SDL check

disable sdl_too_old
disable sdl
SDL_CONFIG="${cross_prefix}sdl-config"
if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
    sdl_cflags=`"${SDL_CONFIG}" --cflags`
    temp_cflags $sdl_cflags
    temp_extralibs `"${SDL_CONFIG}" --libs`
    if check_lib2 SDL.h SDL_Init; then
        _sdlversion=`"${SDL_CONFIG}" --version | sed 's/[^0-9]//g'`
        if test "$_sdlversion" -lt 121 ; then
            enable sdl_too_old
        else
            enable sdl
            check_cc $sdl_cflags <<EOF && enable sdl_video_size
#include <SDL.h>
int main(int argc, char **argv){
    const SDL_VideoInfo *vi = SDL_GetVideoInfo();
    int w = vi->current_w;
    return 0;
}
EOF
        fi
    fi
    restore_flags
fi

texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html

check_type sys/socket.h socklen_t

##########################################
# Network check

if enabled network; then
    # Prefer arpa/inet.h over winsock2
    if check_header arpa/inet.h ; then
        check_func closesocket
    elif check_header winsock2.h ; then
        network_extralibs="-lws2_32"
        check_type ws2tcpip.h socklen_t
        check_func2 winsock2.h closesocket
    fi
fi

##########################################
# IPv6 check

enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
int main(void) {
    struct sockaddr_storage saddr;
    struct ipv6_mreq mreq6;
    getaddrinfo(0,0,0,0);
    getnameinfo(0,0,0,0,0,0,0);
    IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
}
EOF

check_header linux/videodev.h
check_header linux/videodev2.h

check_func2 "windows.h vfw.h" capCreateCaptureWindow -lvfw32

# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
{ check_header dev/bktr/ioctl_meteor.h &&
  check_header dev/bktr/ioctl_bt848.h; } ||
{ check_header machine/ioctl_meteor.h &&
  check_header machine/ioctl_bt848.h; } ||
{ check_header dev/video/meteor/ioctl_meteor.h &&
  check_header dev/video/bktr/ioctl_bt848.h; } ||
check_header dev/ic/bt8xx.h

check_header sys/soundcard.h
check_header soundcard.h

# deal with the X11 frame grabber
enabled x11grab                         &&
check_header X11/Xlib.h                 &&
check_header X11/extensions/XShm.h      &&
check_func XOpenDisplay -lX11           &&
check_func XShmCreateImage -lX11 -lXext

enabled debug && add_cflags -g"$debuglevel"

# add some useful compiler flags if supported
check_cflags -Wdeclaration-after-statement
check_cflags -Wall
check_cflags -Wno-switch
check_cflags -Wdisabled-optimization
check_cflags -Wpointer-arith
check_cflags -Wredundant-decls
check_cflags -Wno-pointer-sign
check_cflags -Wcast-qual
check_cflags -Wwrite-strings
check_cflags -Wtype-limits
enabled extra_warnings && check_cflags -Winline

# add some linker flags
check_ldflags -Wl,--warn-common
check_ldflags $LDLATEFLAGS
check_ldflags -Wl,-Bsymbolic

if enabled small; then
    check_cflags -Os            # not all compilers support -Os
    optimizations="small"
elif enabled optimizations; then
    if $cc -v 2>&1 | grep -q xlc; then
        add_cflags  "-O5"
        add_ldflags "-O5"
    else
        add_cflags "-O3"
    fi
fi
check_cflags -fno-math-errno
check_cflags -fno-signed-zeros

# add some flags for Intel C Compiler
if $cc --version | grep -q Intel; then
  # Just warnings, no remarks
  check_cflags -w1
  # -wd: Disable following warnings
  # 144, 167, 556: -Wno-pointer-sign
  # 10006: ignoring unknown option -fno-signed-zeros
  # 10156: ignoring option '-W'; no argument required
  check_cflags -wd144,167,556,10006,10156
  # 11030: Warning unknown option --as-needed
  # 10156: ignoring option '-export'; no argument required
  check_ldflags -wd10156,11030
  # Allow to compile with optimizations
  check_ldflags -march=$cpu
fi

# PIC flags for shared library objects where they are needed
if enabled shared; then
    # LIBOBJFLAGS may have already been set in the OS configuration
    if test -z "$LIBOBJFLAGS" ; then
        case "$arch" in
            x86_64|ia64|alpha|sparc*|power*) LIBOBJFLAGS='$(PIC)' ;;
        esac
    fi
fi

if enabled gprof; then
    add_cflags  "-p"
    add_ldflags "-p"
fi

VHOOKCFLAGS="-fPIC"

# Find out if the .align argument is a power of two or not.
if test $asmalign_pot = "unknown"; then
    disable asmalign_pot
    echo 'asm (".align 3");' | check_cc && enable asmalign_pot
fi

enabled_any $DECODER_LIST      && enable decoders
enabled_any $ENCODER_LIST      && enable encoders
enabled_any $BSF_LIST          && enable bsfs
enabled_any $DEMUXER_LIST      && enable demuxers
enabled_any $MUXER_LIST        && enable muxers
enabled_any $FILTER_LIST       && enable filters
enabled_any $INDEV_LIST        && enable demuxers
enabled_any $OUTDEV_LIST       && enable muxers
enabled_any $PROTOCOL_LIST     && enable protocols

enabled_any $THREADS_LIST      && enable threads

check_deps $CONFIG_LIST       \
           $HAVE_LIST         \
           $DECODER_LIST      \
           $ENCODER_LIST      \
           $PARSER_LIST       \
           $BSF_LIST          \
           $DEMUXER_LIST      \
           $MUXER_LIST        \
           $FILTER_LIST       \
           $INDEV_LIST        \
           $OUTDEV_LIST       \
           $PROTOCOL_LIST     \

enabled libdc1394 && append pkg_requires "libraw1394"
enabled libdirac  && append pkg_requires "dirac"
enabled libtheora && append pkg_requires "theora"
enabled libvorbis && append pkg_requires "vorbisenc"

echo "install prefix            $prefix"
echo "source path               $source_path"
echo "C compiler                $cc"
echo ".align is power-of-two    $asmalign_pot"
echo "ARCH                      $arch ($cpu)"
if test "$build_suffix" != ""; then
    echo "build suffix              $build_suffix"
fi
echo "big-endian                ${bigendian-no}"
if test $arch = "x86_32" -o $arch = "x86_64"; then
    echo "MMX enabled               ${mmx-no}"
    echo "CMOV enabled              ${cmov-no}"
    echo "CMOV is fast              ${fast_cmov-no}"
    echo "EBX available             ${ebx_available-no}"
    echo "EBP available             ${ebp_available-no}"
fi
if test $arch = "armv4l"; then
    echo "ARMv5TE enabled           ${armv5te-no}"
    echo "ARMv6 enabled             ${armv6-no}"
    echo "ARM VFP enabled           ${armvfp-no}"
    echo "IWMMXT enabled            ${iwmmxt-no}"
    echo "NEON enabled              ${neon-no}"
fi
if test $arch = "mips"; then
    echo "MMI enabled               ${mmi-no}"
fi
if test $arch = "powerpc"; then
    echo "AltiVec enabled           ${altivec-no}"
    echo "dcbzl available           ${dcbzl-no}"
fi
echo "gprof enabled             ${gprof-no}"
echo "debug symbols             ${debug-no}"
echo "strip symbols             ${stripping-no}"
echo "optimizations             ${optimizations-no}"
echo "static                    ${static-no}"
echo "shared                    ${shared-no}"
echo "postprocessing support    ${postproc-no}"
echo "software scaler enabled   ${swscale-no}"
echo "new filter support        ${avfilter-no}"
echo "filters using lavformat   ${avfilter_lavf-no}"
echo "video hooking             ${vhook-no}"
if enabled vhook; then
    echo "Imlib2 support            ${imlib2-no}"
    echo "FreeType support          ${freetype2-no}"
fi
echo "network support           ${network-no}"
if enabled network; then
    echo "IPv6 support              ${ipv6-no}"
fi
echo "threading support         ${thread_type-no}"
echo "SDL support               ${sdl-no}"
if enabled sdl_too_old; then
    echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
fi
echo "Sun medialib support      ${mlib-no}"
echo "AVISynth enabled          ${avisynth-no}"
echo "liba52 support            ${liba52-no}"
echo "liba52 dlopened           ${liba52bin-no}"
echo "libamr-nb support         ${libamr_nb-no}"
echo "libamr-wb support         ${libamr_wb-no}"
echo "libdc1394 support         ${libdc1394-no}"
echo "libdirac enabled          ${libdirac-no}"
echo "libfaac enabled           ${libfaac-no}"
echo "libfaad enabled           ${libfaad-no}"
echo "libfaad dlopened          ${libfaadbin-no}"
echo "libgsm enabled            ${libgsm-no}"
echo "libmp3lame enabled        ${libmp3lame-no}"
echo "libnut enabled            ${libnut-no}"
echo "libschroedinger enabled   ${libschroedinger-no}"
echo "libtheora enabled         ${libtheora-no}"
echo "libvorbis enabled         ${libvorbis-no}"
echo "libx264 enabled           ${libx264-no}"
echo "libxvid enabled           ${libxvid-no}"
echo "zlib enabled              ${zlib-no}"
echo "bzlib enabled             ${bzlib-no}"
echo

for type in decoder encoder parser demuxer muxer protocol filter bsf indev outdev; do
    echo "Enabled ${type}s:"
    eval list=\$$(toupper $type)_LIST
    for part in $list; do
        enabled $part && echo ${part%_*}
    done | sort | pr -3 -t
    echo
done

license="LGPL"
if enabled nonfree; then
    license="unredistributable"
elif enabled gpl; then
    license="GPL"
fi

echo "License: $license"

echo "Creating config.mak and config.h..."

echo "# Automatically generated by configure - do not modify!" > config.mak
echo "/* Automatically generated by configure - do not modify! */" > $TMPH
echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
echo "#define FFMPEG_CONFIG_H" >> $TMPH
echo "#define FFMPEG_CONFIGURATION \"$FFMPEG_CONFIGURATION\"" >> $TMPH

echo "prefix=$prefix" >> config.mak
echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
echo "CC=$cc" >> config.mak
echo "AR=$ar" >> config.mak
echo "RANLIB=$ranlib" >> config.mak
echo "LN_S=$ln_s" >> config.mak
enabled stripping &&
    echo "STRIP=$strip" >> config.mak ||
    echo "STRIP=echo ignoring strip" >> config.mak

echo "OPTFLAGS=$CFLAGS" >> config.mak
echo "VHOOKCFLAGS=$VHOOKCFLAGS" >> config.mak
echo "LDFLAGS=$LDFLAGS" >> config.mak
echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
echo "SHFLAGS=$SHFLAGS" >> config.mak
echo "VHOOKSHFLAGS=$VHOOKSHFLAGS" >> config.mak
echo "VHOOKLIBS=$VHOOKLIBS" >> config.mak
echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
echo "BUILD_STATIC=$static" >> config.mak
echo "BUILDSUF=$build_suffix" >> config.mak
echo "FULLNAME=$FULLNAME" >> config.mak
echo "LIBPREF=$LIBPREF" >> config.mak
echo "LIBSUF=$LIBSUF" >> config.mak
echo "LIBNAME=$LIBNAME" >> config.mak
echo "SLIBPREF=$SLIBPREF" >> config.mak
echo "SLIBSUF=$SLIBSUF" >> config.mak
echo "EXESUF=$EXESUF" >> config.mak
echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak

if enabled bigendian; then
    echo "WORDS_BIGENDIAN=yes" >> config.mak
    echo "#define WORDS_BIGENDIAN 1" >> $TMPH
fi

if enabled sdl; then
    echo "SDL_LIBS=`"${SDL_CONFIG}" --libs`" >> config.mak
    echo "SDL_CFLAGS=`"${SDL_CONFIG}" --cflags`" >> config.mak
fi
if enabled texi2html; then
    echo "BUILD_DOC=yes" >> config.mak
fi

get_version(){
    name=$1
    file=$source_path/$2
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
    lcname=$(tolower $name)
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
}

get_version LIBSWSCALE  libswscale/swscale.h
get_version LIBPOSTPROC libpostproc/postprocess.h
get_version LIBAVCODEC  libavcodec/avcodec.h
get_version LIBAVDEVICE libavdevice/avdevice.h
get_version LIBAVFORMAT libavformat/avformat.h
get_version LIBAVUTIL   libavutil/avutil.h
get_version LIBAVFILTER libavfilter/avfilter.h

if enabled shared; then
    echo "BUILD_SHARED=yes" >> config.mak
    echo "PIC=-fPIC -DPIC" >> config.mak
    echo "LIBTARGET=${LIBTARGET}" >> config.mak
    echo "SLIBNAME=${SLIBNAME}" >> config.mak
    echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
    echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
    echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
    echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
    echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
    echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
fi
echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
echo "EXTRALIBS=$extralibs" >> config.mak

print_config ARCH_   $TMPH config.mak $ARCH_LIST
print_config HAVE_   $TMPH config.mak $HAVE_LIST
print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
                                      $DECODER_LIST      \
                                      $ENCODER_LIST      \
                                      $PARSER_LIST       \
                                      $BSF_LIST          \
                                      $DEMUXER_LIST      \
                                      $MUXER_LIST        \
                                      $FILTER_LIST       \
                                      $PROTOCOL_LIST     \
                                      $INDEV_LIST        \
                                      $OUTDEV_LIST       \

echo "#define restrict $_restrict" >> $TMPH

if enabled small; then
    echo "#define av_always_inline"  >> $TMPH
fi

echo "SRC_PATH=\"$source_path\"" >> config.mak
echo "SRC_PATH_BARE=$source_path" >> config.mak
echo "BUILD_ROOT=\"$PWD\"" >> config.mak

# Apparently it's not possible to portably echo a backslash.
enabled asmalign_pot &&
    printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
    printf '#define ASMALIGN(ZEROBITS) ".align 1<<" #ZEROBITS "\\n\\t"\n' >> $TMPH

echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH

echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH

# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
cmp -s $TMPH config.h &&
    echo "config.h is unchanged" ||
    mv -f $TMPH config.h

rm -f $TMPC $TMPE $TMPH $TMPO $TMPS $TMPSH

# build tree in object directory if source path is different from current one
if enabled source_path_used; then
    DIRS="\
        doc               \
        libavcodec        \
        libavcodec/alpha  \
        libavcodec/armv4l \
        libavcodec/bfin   \
        libavcodec/i386   \
        libavcodec/mlib   \
        libavcodec/ppc    \
        libavcodec/sh4    \
        libavcodec/sparc  \
        libavdevice       \
        libavfilter       \
        libavformat       \
        libavutil         \
        libpostproc       \
        libswscale        \
        tests             \
        tools             \
        vhook             \
        "
    FILES="\
        Makefile             \
        common.mak           \
        subdir.mak           \
        doc/texi2pod.pl      \
        libavcodec/Makefile  \
        libavdevice/Makefile \
        libavfilter/Makefile \
        libavformat/Makefile \
        libavutil/Makefile   \
        libpostproc/Makefile \
        libswscale/Makefile  \
        "
    for dir in $DIRS ; do
        mkdir -p $dir
    done
    for f in $FILES ; do
        $ln_s "$source_path/$f" $f
    done
fi


# build pkg-config files

pkgconfig_generate(){
name=$1
shortname=${name#lib}
comment=$2
version=$3
libs=$4
requires=$5
cat <<EOF > $name.pc
prefix=$prefix
exec_prefix=\${prefix}
libdir=$libdir
includedir=$incdir

Name: $name
Description: $comment
Version: $version
Requires: $(disabled shared && echo $requires)
Requires.private: $(enabled shared && echo $requires)
Conflicts:
Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
Libs.private: $(enabled shared && echo $libs)
Cflags: -I\${includedir}
EOF
cat <<EOF > $name-uninstalled.pc
prefix=
exec_prefix=
libdir=\${pcfiledir}/$name
includedir=\${pcfiledir}

Name: $name
Description: $comment
Version: $version
Requires: $requires
Conflicts:
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
Cflags: -I\${includedir}
EOF
}

pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "$pkg_requires libavutil = $LIBAVUTIL_VERSION"
pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "$pkg_requires libavcodec = $LIBAVCODEC_VERSION"
pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$pkg_requires libavformat = $LIBAVFORMAT_VERSION"
enabled avfilter &&
    pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$pkg_requires libavutil = $LIBAVUTIL_VERSION"
enabled postproc &&
    pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
if enabled swscale; then
    pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
else
    pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "$pkg_requires libavcodec = $LIBAVCODEC_VERSION"
    apply libswscale.pc sed s/^Libs:.*$/Libs:/
fi