/usr/bin/h2xs is in perl 5.26.1-6ubuntu0.3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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 | #!/usr/bin/perl
eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
if $running_under_some_shell;
BEGIN { pop @INC if $INC[-1] eq '.' }
use warnings;
=head1 NAME
h2xs - convert .h C header files to Perl extensions
=head1 SYNOPSIS
B<h2xs> [B<OPTIONS> ...] [headerfile ... [extra_libraries]]
B<h2xs> B<-h>|B<-?>|B<--help>
=head1 DESCRIPTION
I<h2xs> builds a Perl extension from C header files. The extension
will include functions which can be used to retrieve the value of any
#define statement which was in the C header files.
The I<module_name> will be used for the name of the extension. If
module_name is not supplied then the name of the first header file
will be used, with the first character capitalized.
If the extension might need extra libraries, they should be included
here. The extension Makefile.PL will take care of checking whether
the libraries actually exist and how they should be loaded. The extra
libraries should be specified in the form -lm -lposix, etc, just as on
the cc command line. By default, the Makefile.PL will search through
the library path determined by Configure. That path can be augmented
by including arguments of the form B<-L/another/library/path> in the
extra-libraries argument.
In spite of its name, I<h2xs> may also be used to create a skeleton pure
Perl module. See the B<-X> option.
=head1 OPTIONS
=over 5
=item B<-A>, B<--omit-autoload>
Omit all autoload facilities. This is the same as B<-c> but also
removes the S<C<use AutoLoader>> statement from the .pm file.
=item B<-B>, B<--beta-version>
Use an alpha/beta style version number. Causes version number to
be "0.00_01" unless B<-v> is specified.
=item B<-C>, B<--omit-changes>
Omits creation of the F<Changes> file, and adds a HISTORY section to
the POD template.
=item B<-F>, B<--cpp-flags>=I<addflags>
Additional flags to specify to C preprocessor when scanning header for
function declarations. Writes these options in the generated F<Makefile.PL>
too.
=item B<-M>, B<--func-mask>=I<regular expression>
selects functions/macros to process.
=item B<-O>, B<--overwrite-ok>
Allows a pre-existing extension directory to be overwritten.
=item B<-P>, B<--omit-pod>
Omit the autogenerated stub POD section.
=item B<-X>, B<--omit-XS>
Omit the XS portion. Used to generate a skeleton pure Perl module.
C<-c> and C<-f> are implicitly enabled.
=item B<-a>, B<--gen-accessors>
Generate an accessor method for each element of structs and unions. The
generated methods are named after the element name; will return the current
value of the element if called without additional arguments; and will set
the element to the supplied value (and return the new value) if called with
an additional argument. Embedded structures and unions are returned as a
pointer rather than the complete structure, to facilitate chained calls.
These methods all apply to the Ptr type for the structure; additionally
two methods are constructed for the structure type itself, C<_to_ptr>
which returns a Ptr type pointing to the same structure, and a C<new>
method to construct and return a new structure, initialised to zeroes.
=item B<-b>, B<--compat-version>=I<version>
Generates a .pm file which is backwards compatible with the specified
perl version.
For versions < 5.6.0, the changes are.
- no use of 'our' (uses 'use vars' instead)
- no 'use warnings'
Specifying a compatibility version higher than the version of perl you
are using to run h2xs will have no effect. If unspecified h2xs will default
to compatibility with the version of perl you are using to run h2xs.
=item B<-c>, B<--omit-constant>
Omit C<constant()> from the .xs file and corresponding specialised
C<AUTOLOAD> from the .pm file.
=item B<-d>, B<--debugging>
Turn on debugging messages.
=item B<-e>, B<--omit-enums>=[I<regular expression>]
If I<regular expression> is not given, skip all constants that are defined in
a C enumeration. Otherwise skip only those constants that are defined in an
enum whose name matches I<regular expression>.
Since I<regular expression> is optional, make sure that this switch is followed
by at least one other switch if you omit I<regular expression> and have some
pending arguments such as header-file names. This is ok:
h2xs -e -n Module::Foo foo.h
This is not ok:
h2xs -n Module::Foo -e foo.h
In the latter, foo.h is taken as I<regular expression>.
=item B<-f>, B<--force>
Allows an extension to be created for a header even if that header is
not found in standard include directories.
=item B<-g>, B<--global>
Include code for safely storing static data in the .xs file.
Extensions that do no make use of static data can ignore this option.
=item B<-h>, B<-?>, B<--help>
Print the usage, help and version for this h2xs and exit.
=item B<-k>, B<--omit-const-func>
For function arguments declared as C<const>, omit the const attribute in the
generated XS code.
=item B<-m>, B<--gen-tied-var>
B<Experimental>: for each variable declared in the header file(s), declare
a perl variable of the same name magically tied to the C variable.
=item B<-n>, B<--name>=I<module_name>
Specifies a name to be used for the extension, e.g., S<-n RPC::DCE>
=item B<-o>, B<--opaque-re>=I<regular expression>
Use "opaque" data type for the C types matched by the regular
expression, even if these types are C<typedef>-equivalent to types
from typemaps. Should not be used without B<-x>.
This may be useful since, say, types which are C<typedef>-equivalent
to integers may represent OS-related handles, and one may want to work
with these handles in OO-way, as in C<$handle-E<gt>do_something()>.
Use C<-o .> if you want to handle all the C<typedef>ed types as opaque
types.
The type-to-match is whitewashed (except for commas, which have no
whitespace before them, and multiple C<*> which have no whitespace
between them).
=item B<-p>, B<--remove-prefix>=I<prefix>
Specify a prefix which should be removed from the Perl function names,
e.g., S<-p sec_rgy_> This sets up the XS B<PREFIX> keyword and removes
the prefix from functions that are autoloaded via the C<constant()>
mechanism.
=item B<-s>, B<--const-subs>=I<sub1,sub2>
Create a perl subroutine for the specified macros rather than autoload
with the constant() subroutine. These macros are assumed to have a
return type of B<char *>, e.g.,
S<-s sec_rgy_wildcard_name,sec_rgy_wildcard_sid>.
=item B<-t>, B<--default-type>=I<type>
Specify the internal type that the constant() mechanism uses for macros.
The default is IV (signed integer). Currently all macros found during the
header scanning process will be assumed to have this type. Future versions
of C<h2xs> may gain the ability to make educated guesses.
=item B<--use-new-tests>
When B<--compat-version> (B<-b>) is present the generated tests will use
C<Test::More> rather than C<Test> which is the default for versions before
5.6.2. C<Test::More> will be added to PREREQ_PM in the generated
C<Makefile.PL>.
=item B<--use-old-tests>
Will force the generation of test code that uses the older C<Test> module.
=item B<--skip-exporter>
Do not use C<Exporter> and/or export any symbol.
=item B<--skip-ppport>
Do not use C<Devel::PPPort>: no portability to older version.
=item B<--skip-autoloader>
Do not use the module C<AutoLoader>; but keep the constant() function
and C<sub AUTOLOAD> for constants.
=item B<--skip-strict>
Do not use the pragma C<strict>.
=item B<--skip-warnings>
Do not use the pragma C<warnings>.
=item B<-v>, B<--version>=I<version>
Specify a version number for this extension. This version number is added
to the templates. The default is 0.01, or 0.00_01 if C<-B> is specified.
The version specified should be numeric.
=item B<-x>, B<--autogen-xsubs>
Automatically generate XSUBs basing on function declarations in the
header file. The package C<C::Scan> should be installed. If this
option is specified, the name of the header file may look like
C<NAME1,NAME2>. In this case NAME1 is used instead of the specified
string, but XSUBs are emitted only for the declarations included from
file NAME2.
Note that some types of arguments/return-values for functions may
result in XSUB-declarations/typemap-entries which need
hand-editing. Such may be objects which cannot be converted from/to a
pointer (like C<long long>), pointers to functions, or arrays. See
also the section on L<LIMITATIONS of B<-x>>.
=back
=head1 EXAMPLES
# Default behavior, extension is Rusers
h2xs rpcsvc/rusers
# Same, but extension is RUSERS
h2xs -n RUSERS rpcsvc/rusers
# Extension is rpcsvc::rusers. Still finds <rpcsvc/rusers.h>
h2xs rpcsvc::rusers
# Extension is ONC::RPC. Still finds <rpcsvc/rusers.h>
h2xs -n ONC::RPC rpcsvc/rusers
# Without constant() or AUTOLOAD
h2xs -c rpcsvc/rusers
# Creates templates for an extension named RPC
h2xs -cfn RPC
# Extension is ONC::RPC.
h2xs -cfn ONC::RPC
# Extension is a pure Perl module with no XS code.
h2xs -X My::Module
# Extension is Lib::Foo which works at least with Perl5.005_03.
# Constants are created for all #defines and enums h2xs can find
# in foo.h.
h2xs -b 5.5.3 -n Lib::Foo foo.h
# Extension is Lib::Foo which works at least with Perl5.005_03.
# Constants are created for all #defines but only for enums
# whose names do not start with 'bar_'.
h2xs -b 5.5.3 -e '^bar_' -n Lib::Foo foo.h
# Makefile.PL will look for library -lrpc in
# additional directory /opt/net/lib
h2xs rpcsvc/rusers -L/opt/net/lib -lrpc
# Extension is DCE::rgynbase
# prefix "sec_rgy_" is dropped from perl function names
h2xs -n DCE::rgynbase -p sec_rgy_ dce/rgynbase
# Extension is DCE::rgynbase
# prefix "sec_rgy_" is dropped from perl function names
# subroutines are created for sec_rgy_wildcard_name and
# sec_rgy_wildcard_sid
h2xs -n DCE::rgynbase -p sec_rgy_ \
-s sec_rgy_wildcard_name,sec_rgy_wildcard_sid dce/rgynbase
# Make XS without defines in perl.h, but with function declarations
# visible from perl.h. Name of the extension is perl1.
# When scanning perl.h, define -DEXT=extern -DdEXT= -DINIT(x)=
# Extra backslashes below because the string is passed to shell.
# Note that a directory with perl header files would
# be added automatically to include path.
h2xs -xAn perl1 -F "-DEXT=extern -DdEXT= -DINIT\(x\)=" perl.h
# Same with function declaration in proto.h as visible from perl.h.
h2xs -xAn perl2 perl.h,proto.h
# Same but select only functions which match /^av_/
h2xs -M '^av_' -xAn perl2 perl.h,proto.h
# Same but treat SV* etc as "opaque" types
h2xs -o '^[S]V \*$' -M '^av_' -xAn perl2 perl.h,proto.h
=head2 Extension based on F<.h> and F<.c> files
Suppose that you have some C files implementing some functionality,
and the corresponding header files. How to create an extension which
makes this functionality accessible in Perl? The example below
assumes that the header files are F<interface_simple.h> and
I<interface_hairy.h>, and you want the perl module be named as
C<Ext::Ension>. If you need some preprocessor directives and/or
linking with external libraries, see the flags C<-F>, C<-L> and C<-l>
in L<"OPTIONS">.
=over
=item Find the directory name
Start with a dummy run of h2xs:
h2xs -Afn Ext::Ension
The only purpose of this step is to create the needed directories, and
let you know the names of these directories. From the output you can
see that the directory for the extension is F<Ext/Ension>.
=item Copy C files
Copy your header files and C files to this directory F<Ext/Ension>.
=item Create the extension
Run h2xs, overwriting older autogenerated files:
h2xs -Oxan Ext::Ension interface_simple.h interface_hairy.h
h2xs looks for header files I<after> changing to the extension
directory, so it will find your header files OK.
=item Archive and test
As usual, run
cd Ext/Ension
perl Makefile.PL
make dist
make
make test
=item Hints
It is important to do C<make dist> as early as possible. This way you
can easily merge(1) your changes to autogenerated files if you decide
to edit your C<.h> files and rerun h2xs.
Do not forget to edit the documentation in the generated F<.pm> file.
Consider the autogenerated files as skeletons only, you may invent
better interfaces than what h2xs could guess.
Consider this section as a guideline only, some other options of h2xs
may better suit your needs.
=back
=head1 ENVIRONMENT
No environment variables are used.
=head1 AUTHOR
Larry Wall and others
=head1 SEE ALSO
L<perl>, L<perlxstut>, L<ExtUtils::MakeMaker>, and L<AutoLoader>.
=head1 DIAGNOSTICS
The usual warnings if it cannot read or write the files involved.
=head1 LIMITATIONS of B<-x>
F<h2xs> would not distinguish whether an argument to a C function
which is of the form, say, C<int *>, is an input, output, or
input/output parameter. In particular, argument declarations of the
form
int
foo(n)
int *n
should be better rewritten as
int
foo(n)
int &n
if C<n> is an input parameter.
Additionally, F<h2xs> has no facilities to intuit that a function
int
foo(addr,l)
char *addr
int l
takes a pair of address and length of data at this address, so it is better
to rewrite this function as
int
foo(sv)
SV *addr
PREINIT:
STRLEN len;
char *s;
CODE:
s = SvPV(sv,len);
RETVAL = foo(s, len);
OUTPUT:
RETVAL
or alternately
static int
my_foo(SV *sv)
{
STRLEN len;
char *s = SvPV(sv,len);
return foo(s, len);
}
MODULE = foo PACKAGE = foo PREFIX = my_
int
foo(sv)
SV *sv
See L<perlxs> and L<perlxstut> for additional details.
=cut
# ' # Grr
use strict;
my( $H2XS_VERSION ) = ' $Revision: 1.23 $ ' =~ /\$Revision:\s+([^\s]+)/;
my $TEMPLATE_VERSION = '0.01';
my @ARGS = @ARGV;
my $compat_version = $];
use Getopt::Long;
use Config;
use Text::Wrap;
$Text::Wrap::huge = 'overflow';
$Text::Wrap::columns = 80;
use ExtUtils::Constant qw (WriteConstants WriteMakefileSnippet autoload);
use File::Compare;
use File::Path;
sub usage {
warn "@_\n" if @_;
die <<EOFUSAGE;
h2xs [OPTIONS ... ] [headerfile [extra_libraries]]
version: $H2XS_VERSION
OPTIONS:
-A, --omit-autoload Omit all autoloading facilities (implies -c).
-B, --beta-version Use beta \$VERSION of 0.00_01 (ignored if -v).
-C, --omit-changes Omit creating the Changes file, add HISTORY heading
to stub POD.
-F, --cpp-flags Additional flags for C preprocessor/compile.
-M, --func-mask Mask to select C functions/macros
(default is select all).
-O, --overwrite-ok Allow overwriting of a pre-existing extension directory.
-P, --omit-pod Omit the stub POD section.
-X, --omit-XS Omit the XS portion (implies both -c and -f).
-a, --gen-accessors Generate get/set accessors for struct and union members
(used with -x).
-b, --compat-version Specify a perl version to be backwards compatible with.
-c, --omit-constant Omit the constant() function and specialised AUTOLOAD
from the XS file.
-d, --debugging Turn on debugging messages.
-e, --omit-enums Omit constants from enums in the constant() function.
If a pattern is given, only the matching enums are
ignored.
-f, --force Force creation of the extension even if the C header
does not exist.
-g, --global Include code for safely storing static data in the .xs file.
-h, -?, --help Display this help message.
-k, --omit-const-func Omit 'const' attribute on function arguments
(used with -x).
-m, --gen-tied-var Generate tied variables for access to declared
variables.
-n, --name Specify a name to use for the extension (recommended).
-o, --opaque-re Regular expression for \"opaque\" types.
-p, --remove-prefix Specify a prefix which should be removed from the
Perl function names.
-s, --const-subs Create subroutines for specified macros.
-t, --default-type Default type for autoloaded constants (default is IV).
--use-new-tests Use Test::More in backward compatible modules.
--use-old-tests Use the module Test rather than Test::More.
--skip-exporter Do not export symbols.
--skip-ppport Do not use portability layer.
--skip-autoloader Do not use the module C<AutoLoader>.
--skip-strict Do not use the pragma C<strict>.
--skip-warnings Do not use the pragma C<warnings>.
-v, --version Specify a version number for this extension.
-x, --autogen-xsubs Autogenerate XSUBs using C::Scan.
--use-xsloader Use XSLoader in backward compatible modules (ignored
when used with -X).
extra_libraries
are any libraries that might be needed for loading the
extension, e.g. -lm would try to link in the math library.
EOFUSAGE
}
my ($opt_A,
$opt_B,
$opt_C,
$opt_F,
$opt_M,
$opt_O,
$opt_P,
$opt_X,
$opt_a,
$opt_c,
$opt_d,
$opt_e,
$opt_f,
$opt_g,
$opt_h,
$opt_k,
$opt_m,
$opt_n,
$opt_o,
$opt_p,
$opt_s,
$opt_v,
$opt_x,
$opt_b,
$opt_t,
$new_test,
$old_test,
$skip_exporter,
$skip_ppport,
$skip_autoloader,
$skip_strict,
$skip_warnings,
$use_xsloader
);
Getopt::Long::Configure('bundling');
Getopt::Long::Configure('pass_through');
my %options = (
'omit-autoload|A' => \$opt_A,
'beta-version|B' => \$opt_B,
'omit-changes|C' => \$opt_C,
'cpp-flags|F=s' => \$opt_F,
'func-mask|M=s' => \$opt_M,
'overwrite_ok|O' => \$opt_O,
'omit-pod|P' => \$opt_P,
'omit-XS|X' => \$opt_X,
'gen-accessors|a' => \$opt_a,
'compat-version|b=s' => \$opt_b,
'omit-constant|c' => \$opt_c,
'debugging|d' => \$opt_d,
'omit-enums|e:s' => \$opt_e,
'force|f' => \$opt_f,
'global|g' => \$opt_g,
'help|h|?' => \$opt_h,
'omit-const-func|k' => \$opt_k,
'gen-tied-var|m' => \$opt_m,
'name|n=s' => \$opt_n,
'opaque-re|o=s' => \$opt_o,
'remove-prefix|p=s' => \$opt_p,
'const-subs|s=s' => \$opt_s,
'default-type|t=s' => \$opt_t,
'version|v=s' => \$opt_v,
'autogen-xsubs|x' => \$opt_x,
'use-new-tests' => \$new_test,
'use-old-tests' => \$old_test,
'skip-exporter' => \$skip_exporter,
'skip-ppport' => \$skip_ppport,
'skip-autoloader' => \$skip_autoloader,
'skip-warnings' => \$skip_warnings,
'skip-strict' => \$skip_strict,
'use-xsloader' => \$use_xsloader,
);
GetOptions(%options) || usage;
usage if $opt_h;
if( $opt_b ){
usage "You cannot use -b and -m at the same time.\n" if ($opt_b && $opt_m);
$opt_b =~ /^v?(\d+)\.(\d+)\.(\d+)/ ||
usage "You must provide the backwards compatibility version in X.Y.Z form. "
. "(i.e. 5.5.0)\n";
my ($maj,$min,$sub) = ($1,$2,$3);
if ($maj < 5 || ($maj == 5 && $min < 6)) {
$compat_version =
$sub ? sprintf("%d.%03d%02d",$maj,$min,$sub) :
sprintf("%d.%03d", $maj,$min);
} else {
$compat_version = sprintf("%d.%03d%03d",$maj,$min,$sub);
}
} else {
my ($maj,$min,$sub) = $compat_version =~ /(\d+)\.(\d\d\d)(\d*)/;
$sub ||= 0;
warn sprintf <<'EOF', $maj,$min,$sub;
Defaulting to backwards compatibility with perl %d.%d.%d
If you intend this module to be compatible with earlier perl versions, please
specify a minimum perl version with the -b option.
EOF
}
if( $opt_B ){
$TEMPLATE_VERSION = '0.00_01';
}
if( $opt_v ){
$TEMPLATE_VERSION = $opt_v;
# check if it is numeric
my $temp_version = $TEMPLATE_VERSION;
my $beta_version = $temp_version =~ s/(\d)_(\d\d)/$1$2/;
my $notnum;
{
local $SIG{__WARN__} = sub { $notnum = 1 };
use warnings 'numeric';
$temp_version = 0+$temp_version;
}
if ($notnum) {
my $module = $opt_n || 'Your::Module';
warn <<"EOF";
You have specified a non-numeric version. Unless you supply an
appropriate VERSION class method, users may not be able to specify a
minimum required version with C<use $module versionnum>.
EOF
}
else {
$opt_B = $beta_version;
}
}
# -A implies -c.
$skip_autoloader = $opt_c = 1 if $opt_A;
# -X implies -c and -f
$opt_c = $opt_f = 1 if $opt_X;
$opt_t ||= 'IV';
my %const_xsub;
%const_xsub = map { $_,1 } split(/,+/, $opt_s) if $opt_s;
my $extralibs = '';
my @path_h;
while (my $arg = shift) {
if ($arg =~ /^-l/i) {
$extralibs .= "$arg ";
next;
}
last if $extralibs;
push(@path_h, $arg);
}
usage "Must supply header file or module name\n"
unless (@path_h or $opt_n);
my $fmask;
my $tmask;
$fmask = qr{$opt_M} if defined $opt_M;
$tmask = qr{$opt_o} if defined $opt_o;
my $tmask_all = $tmask && $opt_o eq '.';
if ($opt_x) {
eval {require C::Scan; 1}
or die <<EOD;
C::Scan required if you use -x option.
To install C::Scan, execute
perl -MCPAN -e "install C::Scan"
EOD
unless ($tmask_all) {
$C::Scan::VERSION >= 0.70
or die <<EOD;
C::Scan v. 0.70 or later required unless you use -o . option.
You have version $C::Scan::VERSION installed as $INC{'C/Scan.pm'}.
To install C::Scan, execute
perl -MCPAN -e "install C::Scan"
EOD
}
if (($opt_m || $opt_a) && $C::Scan::VERSION < 0.73) {
die <<EOD;
C::Scan v. 0.73 or later required to use -m or -a options.
You have version $C::Scan::VERSION installed as $INC{'C/Scan.pm'}.
To install C::Scan, execute
perl -MCPAN -e "install C::Scan"
EOD
}
}
elsif ($opt_o or $opt_F) {
warn <<EOD if $opt_o;
Option -o does not make sense without -x.
EOD
warn <<EOD if $opt_F and $opt_X ;
Option -F does not make sense with -X.
EOD
}
my @path_h_ini = @path_h;
my ($name, %fullpath, %prefix, %seen_define, %prefixless, %const_names);
my $module = $opt_n;
if( @path_h ){
use File::Spec;
my @paths;
my $pre_sub_tri_graphs = 1;
if ($^O eq 'VMS') { # Consider overrides of default location
# XXXX This is not equivalent to what the older version did:
# it was looking at $hadsys header-file per header-file...
my($hadsys) = grep s!^sys/!!i , @path_h;
@paths = qw( Sys$Library VAXC$Include );
push @paths, ($hadsys ? 'GNU_CC_Include[vms]' : 'GNU_CC_Include[000000]');
push @paths, qw( DECC$Library_Include DECC$System_Include );
}
else {
@paths = (File::Spec->curdir(), $Config{usrinc},
(split / +/, $Config{locincpth} // ""), '/usr/include');
}
foreach my $path_h (@path_h) {
$name ||= $path_h;
$module ||= do {
$name =~ s/\.h$//;
if ( $name !~ /::/ ) {
$name =~ s#^.*/##;
$name = "\u$name";
}
$name;
};
if( $path_h =~ s#::#/#g && $opt_n ){
warn "Nesting of headerfile ignored with -n\n";
}
$path_h .= ".h" unless $path_h =~ /\.h$/;
my $fullpath = $path_h;
$path_h =~ s/,.*$// if $opt_x;
$fullpath{$path_h} = $fullpath;
# Minor trickery: we can't chdir() before we processed the headers
# (so know the name of the extension), but the header may be in the
# extension directory...
my $tmp_path_h = $path_h;
my $rel_path_h = $path_h;
my @dirs = @paths;
if (not -f $path_h) {
my $found;
for my $dir (@paths) {
$found++, last
if -f ($path_h = File::Spec->catfile($dir, $tmp_path_h));
}
if ($found) {
$rel_path_h = $path_h;
$fullpath{$path_h} = $fullpath;
} else {
(my $epath = $module) =~ s,::,/,g;
$epath = File::Spec->catdir('ext', $epath) if -d 'ext';
$rel_path_h = File::Spec->catfile($epath, $tmp_path_h);
$path_h = $tmp_path_h; # Used during -x
push @dirs, $epath;
}
}
if (!$opt_c) {
die "Can't find $tmp_path_h in @dirs\n"
if ( ! $opt_f && ! -f "$rel_path_h" );
# Scan the header file (we should deal with nested header files)
# Record the names of simple #define constants into const_names
# Function prototypes are processed below.
open(CH, "<", "$rel_path_h") || die "Can't open $rel_path_h: $!\n";
defines:
while (<CH>) {
if ($pre_sub_tri_graphs) {
# Preprocess all tri-graphs
# including things stuck in quoted string constants.
s/\?\?=/#/g; # | ??=| #|
s/\?\?\!/|/g; # | ??!| ||
s/\?\?'/^/g; # | ??'| ^|
s/\?\?\(/[/g; # | ??(| [|
s/\?\?\)/]/g; # | ??)| ]|
s/\?\?\-/~/g; # | ??-| ~|
s/\?\?\//\\/g; # | ??/| \|
s/\?\?</{/g; # | ??<| {|
s/\?\?>/}/g; # | ??>| }|
}
if (/^[ \t]*#[ \t]*define\s+([\$\w]+)\b(?!\()\s*(?=[^"\s])(.*)/) {
my $def = $1;
my $rest = $2;
$rest =~ s!/\*.*?(\*/|\n)|//.*!!g; # Remove comments
$rest =~ s/^\s+//;
$rest =~ s/\s+$//;
if ($rest eq '') {
print("Skip empty $def\n") if $opt_d;
next defines;
}
# Cannot do: (-1) and ((LHANDLE)3) are OK:
#print("Skip non-wordy $def => $rest\n"),
# next defines if $rest =~ /[^\w\$]/;
if ($rest =~ /"/) {
print("Skip stringy $def => $rest\n") if $opt_d;
next defines;
}
print "Matched $_ ($def)\n" if $opt_d;
$seen_define{$def} = $rest;
$_ = $def;
next if /^_.*_h_*$/i; # special case, but for what?
if (defined $opt_p) {
if (!/^$opt_p(\d)/) {
++$prefix{$_} if s/^$opt_p//;
}
else {
warn "can't remove $opt_p prefix from '$_'!\n";
}
}
$prefixless{$def} = $_;
if (!$fmask or /$fmask/) {
print "... Passes mask of -M.\n" if $opt_d and $fmask;
$const_names{$_}++;
}
}
}
if (defined $opt_e and !$opt_e) {
close(CH);
}
else {
# Work from miniperl too - on "normal" systems
my $SEEK_SET = eval 'use Fcntl qw/SEEK_SET/; SEEK_SET' || 0;
seek CH, 0, $SEEK_SET;
my $src = do { local $/; <CH> };
close CH;
no warnings 'uninitialized';
# Remove C and C++ comments
$src =~ s#/\*[^*]*\*+([^/*][^*]*\*+)*/|("(\\.|[^"\\])*"|'(\\.|[^'\\])*'|.[^/"'\\]*)#$2#gs;
$src =~ s#//.*$##gm;
while ($src =~ /\benum\s*([\w_]*)\s*\{\s([^}]+)\}/gsc) {
my ($enum_name, $enum_body) = ($1, $2);
# skip enums matching $opt_e
next if $opt_e && $enum_name =~ /$opt_e/;
my $val = 0;
for my $item (split /,/, $enum_body) {
next if $item =~ /\A\s*\Z/;
my ($key, $declared_val) = $item =~ /(\w+)\s*(?:=\s*(.*))?/;
$val = defined($declared_val) && length($declared_val) ? $declared_val : 1 + $val;
$seen_define{$key} = $val;
$const_names{$key} = { name => $key, macro => 1 };
}
} # while (...)
} # if (!defined $opt_e or $opt_e)
}
}
}
# Save current directory so that C::Scan can use it
my $cwd = File::Spec->rel2abs( File::Spec->curdir );
# As Ilya suggested, use a name that contains - and then it can't clash with
# the names of any packages. A directory 'fallback' will clash with any
# new pragmata down the fallback:: tree, but that seems unlikely.
my $constscfname = 'const-c.inc';
my $constsxsfname = 'const-xs.inc';
my $fallbackdirname = 'fallback';
my $ext = chdir 'ext' ? 'ext/' : '';
my @modparts = split(/::/,$module);
my $modpname = join('-', @modparts);
my $modfname = pop @modparts;
my $modpmdir = join '/', 'lib', @modparts;
my $modpmname = join '/', $modpmdir, $modfname.'.pm';
if ($opt_O) {
warn "Overwriting existing $ext$modpname!!!\n" if -e $modpname;
}
else {
die "Won't overwrite existing $ext$modpname\n" if -e $modpname;
}
-d "$modpname" || mkpath([$modpname], 0, 0775);
chdir($modpname) || die "Can't chdir $ext$modpname: $!\n";
my %types_seen;
my %std_types;
my $fdecls = [];
my $fdecls_parsed = [];
my $typedef_rex;
my %typedefs_pre;
my %known_fnames;
my %structs;
my @fnames;
my @fnames_no_prefix;
my %vdecl_hash;
my @vdecls;
if( ! $opt_X ){ # use XS, unless it was disabled
unless ($skip_ppport) {
require Devel::PPPort;
warn "Writing $ext$modpname/ppport.h\n";
Devel::PPPort::WriteFile('ppport.h')
|| die "Can't create $ext$modpname/ppport.h: $!\n";
}
open(XS, ">", "$modfname.xs") || die "Can't create $ext$modpname/$modfname.xs: $!\n";
if ($opt_x) {
warn "Scanning typemaps...\n";
get_typemap();
my @td;
my @good_td;
my $addflags = $opt_F || '';
foreach my $filename (@path_h) {
my $c;
my $filter;
if ($fullpath{$filename} =~ /,/) {
$filename = $`;
$filter = $';
}
warn "Scanning $filename for functions...\n";
my @styles = $Config{gccversion} ? qw(C++ C9X GNU) : qw(C++ C9X);
$c = C::Scan->new('filename' => $filename, 'filename_filter' => $filter,
'add_cppflags' => $addflags, 'c_styles' => \@styles);
$c->set('includeDirs' => ["$Config::Config{archlib}/CORE", $cwd]);
$c->get('keywords')->{'__restrict'} = 1;
push @$fdecls_parsed, @{ $c->get('parsed_fdecls') };
push(@$fdecls, @{$c->get('fdecls')});
push @td, @{$c->get('typedefs_maybe')};
if ($opt_a) {
my $structs = $c->get('typedef_structs');
@structs{keys %$structs} = values %$structs;
}
if ($opt_m) {
%vdecl_hash = %{ $c->get('vdecl_hash') };
@vdecls = sort keys %vdecl_hash;
for (local $_ = 0; $_ < @vdecls; ++$_) {
my $var = $vdecls[$_];
my($type, $post) = @{ $vdecl_hash{$var} };
if (defined $post) {
warn "Can't handle variable '$type $var $post', skipping.\n";
splice @vdecls, $_, 1;
redo;
}
$type = normalize_type($type);
$vdecl_hash{$var} = $type;
}
}
unless ($tmask_all) {
warn "Scanning $filename for typedefs...\n";
my $td = $c->get('typedef_hash');
# eval {require 'dumpvar.pl'; ::dumpValue($td)} or warn $@ if $opt_d;
my @f_good_td = grep $td->{$_}[1] eq '', keys %$td;
push @good_td, @f_good_td;
@typedefs_pre{@f_good_td} = map $_->[0], @$td{@f_good_td};
}
}
{ local $" = '|';
$typedef_rex = qr(\b(?<!struct )(?<!enum )(?:@good_td)\b) if @good_td;
}
%known_fnames = map @$_[1,3], @$fdecls_parsed; # [1,3] is NAME, FULLTEXT
if ($fmask) {
my @good;
for my $i (0..$#$fdecls_parsed) {
next unless $fdecls_parsed->[$i][1] =~ /$fmask/; # [1] is NAME
push @good, $i;
print "... Function $fdecls_parsed->[$i][1] passes -M mask.\n"
if $opt_d;
}
$fdecls = [@$fdecls[@good]];
$fdecls_parsed = [@$fdecls_parsed[@good]];
}
@fnames = sort map $_->[1], @$fdecls_parsed; # 1 is NAME
# Sort declarations:
{
my %h = map( ($_->[1], $_), @$fdecls_parsed);
$fdecls_parsed = [ @h{@fnames} ];
}
@fnames_no_prefix = @fnames;
@fnames_no_prefix
= sort map { ++$prefix{$_} if s/^$opt_p(?!\d)//; $_ } @fnames_no_prefix
if defined $opt_p;
# Remove macros which expand to typedefs
print "Typedefs are @td.\n" if $opt_d;
my %td = map {($_, $_)} @td;
# Add some other possible but meaningless values for macros
for my $k (qw(char double float int long short unsigned signed void)) {
$td{"$_$k"} = "$_$k" for ('', 'signed ', 'unsigned ');
}
# eval {require 'dumpvar.pl'; ::dumpValue( [\@td, \%td] ); 1} or warn $@;
my $n = 0;
my %bad_macs;
while (keys %td > $n) {
$n = keys %td;
my ($k, $v);
while (($k, $v) = each %seen_define) {
# print("found '$k'=>'$v'\n"),
$bad_macs{$k} = $td{$k} = $td{$v} if exists $td{$v};
}
}
# Now %bad_macs contains names of bad macros
for my $k (keys %bad_macs) {
delete $const_names{$prefixless{$k}};
print "Ignoring macro $k which expands to a typedef name '$bad_macs{$k}'\n" if $opt_d;
}
}
}
my (@const_specs, @const_names);
for (sort(keys(%const_names))) {
my $v = $const_names{$_};
push(@const_specs, ref($v) ? $v : $_);
push(@const_names, $_);
}
-d $modpmdir || mkpath([$modpmdir], 0, 0775);
open(PM, ">", "$modpmname") || die "Can't create $ext$modpname/$modpmname: $!\n";
$" = "\n\t";
warn "Writing $ext$modpname/$modpmname\n";
print PM <<"END";
package $module;
use $compat_version;
END
print PM <<"END" unless $skip_strict;
use strict;
END
print PM "use warnings;\n" unless $skip_warnings or $compat_version < 5.006;
unless( $opt_X || $opt_c || $opt_A ){
# we'll have an AUTOLOAD(), and it will have $AUTOLOAD and
# will want Carp.
print PM <<'END';
use Carp;
END
}
print PM <<'END' unless $skip_exporter;
require Exporter;
END
my $use_Dyna = (not $opt_X and $compat_version < 5.006 and not $use_xsloader);
print PM <<"END" if $use_Dyna; # use DynaLoader, unless XS was disabled
require DynaLoader;
END
# Are we using AutoLoader or not?
unless ($skip_autoloader) { # no autoloader whatsoever.
unless ($opt_c) { # we're doing the AUTOLOAD
print PM "use AutoLoader;\n";
}
else {
print PM "use AutoLoader qw(AUTOLOAD);\n"
}
}
if ( $compat_version < 5.006 ) {
my $vars = '$VERSION @ISA';
$vars .= ' @EXPORT @EXPORT_OK %EXPORT_TAGS' unless $skip_exporter;
$vars .= ' $AUTOLOAD' unless $opt_X || $opt_c || $opt_A;
$vars .= ' $XS_VERSION' if $opt_B && !$opt_X;
print PM "use vars qw($vars);";
}
# Determine @ISA.
my @modISA;
push @modISA, 'Exporter' unless $skip_exporter;
push @modISA, 'DynaLoader' if $use_Dyna; # no XS
my $myISA = "our \@ISA = qw(@modISA);";
$myISA =~ s/^our // if $compat_version < 5.006;
print PM "\n$myISA\n\n";
my @exported_names = (@const_names, @fnames_no_prefix, map '$'.$_, @vdecls);
my $tmp='';
$tmp .= <<"END" unless $skip_exporter;
# Items to export into callers namespace by default. Note: do not export
# names by default without a very good reason. Use EXPORT_OK instead.
# Do not simply export all your public functions/methods/constants.
# This allows declaration use $module ':all';
# If you do not need this, moving things directly into \@EXPORT or \@EXPORT_OK
# will save memory.
our %EXPORT_TAGS = ( 'all' => [ qw(
@exported_names
) ] );
our \@EXPORT_OK = ( \@{ \$EXPORT_TAGS{'all'} } );
our \@EXPORT = qw(
@const_names
);
END
$tmp .= "our \$VERSION = '$TEMPLATE_VERSION';\n";
if ($opt_B) {
$tmp .= "our \$XS_VERSION = \$VERSION;\n" unless $opt_X;
$tmp .= "\$VERSION = eval \$VERSION; # see L<perlmodstyle>\n";
}
$tmp .= "\n";
$tmp =~ s/^our //mg if $compat_version < 5.006;
print PM $tmp;
if (@vdecls) {
printf PM "our(@{[ join ', ', map '$'.$_, @vdecls ]});\n\n";
}
print PM autoload ($module, $compat_version) unless $opt_c or $opt_X;
if( ! $opt_X ){ # print bootstrap, unless XS is disabled
if ($use_Dyna) {
$tmp = <<"END";
bootstrap $module \$VERSION;
END
} else {
$tmp = <<"END";
require XSLoader;
XSLoader::load('$module', \$VERSION);
END
}
$tmp =~ s:\$VERSION:\$XS_VERSION:g if $opt_B;
print PM $tmp;
}
# tying the variables can happen only after bootstrap
if (@vdecls) {
printf PM <<END;
{
@{[ join "\n", map " _tievar_$_(\$$_);", @vdecls ]}
}
END
}
my $after;
if( $opt_P ){ # if POD is disabled
$after = '__END__';
}
else {
$after = '=cut';
}
print PM <<"END";
# Preloaded methods go here.
END
print PM <<"END" unless $opt_A;
# Autoload methods go after $after, and are processed by the autosplit program.
END
print PM <<"END";
1;
__END__
END
my ($email,$author,$licence);
eval {
my $username;
($username,$author) = (getpwuid($>))[0,6];
if (defined $username && defined $author) {
$author =~ s/,.*$//; # in case of sub fields
my $domain = $Config{'mydomain'};
$domain =~ s/^\.//;
$email = "$username\@$domain";
}
};
$author =~ s/'/\\'/g if defined $author;
$author ||= "A. U. Thor";
$email ||= 'a.u.thor@a.galaxy.far.far.away';
$licence = sprintf << "DEFAULT", $^V;
Copyright (C) ${\(1900 + (localtime) [5])} by $author
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version %vd or,
at your option, any later version of Perl 5 you may have available.
DEFAULT
my $revhist = '';
$revhist = <<EOT if $opt_C;
#
#=head1 HISTORY
#
#=over 8
#
#=item $TEMPLATE_VERSION
#
#Original version; created by h2xs $H2XS_VERSION with options
#
# @ARGS
#
#=back
#
EOT
my $exp_doc = $skip_exporter ? '' : <<EOD;
#
#=head2 EXPORT
#
#None by default.
#
EOD
if (@const_names and not $opt_P) {
$exp_doc .= <<EOD unless $skip_exporter;
#=head2 Exportable constants
#
# @{[join "\n ", @const_names]}
#
EOD
}
if (defined $fdecls and @$fdecls and not $opt_P) {
$exp_doc .= <<EOD unless $skip_exporter;
#=head2 Exportable functions
#
EOD
# $exp_doc .= <<EOD if $opt_p;
#When accessing these functions from Perl, prefix C<$opt_p> should be removed.
#
#EOD
$exp_doc .= <<EOD unless $skip_exporter;
# @{[join "\n ", @known_fnames{@fnames}]}
#
EOD
}
my $meth_doc = '';
if ($opt_x && $opt_a) {
my($name, $struct);
$meth_doc .= accessor_docs($name, $struct)
while ($name, $struct) = each %structs;
}
# Prefix the default licence with hash symbols.
# Is this just cargo cult - it seems that the first thing that happens to this
# block is that all the hashes are then s///g out.
my $licence_hash = $licence;
$licence_hash =~ s/^/#/gm;
my $pod;
$pod = <<"END" unless $opt_P;
## Below is stub documentation for your module. You'd better edit it!
#
#=head1 NAME
#
#$module - Perl extension for blah blah blah
#
#=head1 SYNOPSIS
#
# use $module;
# blah blah blah
#
#=head1 DESCRIPTION
#
#Stub documentation for $module, created by h2xs. It looks like the
#author of the extension was negligent enough to leave the stub
#unedited.
#
#Blah blah blah.
$exp_doc$meth_doc$revhist
#
#=head1 SEE ALSO
#
#Mention other useful documentation such as the documentation of
#related modules or operating system documentation (such as man pages
#in UNIX), or any relevant external documentation such as RFCs or
#standards.
#
#If you have a mailing list set up for your module, mention it here.
#
#If you have a web site set up for your module, mention it here.
#
#=head1 AUTHOR
#
#$author, E<lt>${email}E<gt>
#
#=head1 COPYRIGHT AND LICENSE
#
$licence_hash
#
#=cut
END
$pod =~ s/^\#//gm unless $opt_P;
print PM $pod unless $opt_P;
close PM;
if( ! $opt_X ){ # print XS, unless it is disabled
warn "Writing $ext$modpname/$modfname.xs\n";
print XS <<"END";
#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
END
print XS <<"END" unless $skip_ppport;
#include "ppport.h"
END
if( @path_h ){
foreach my $path_h (@path_h_ini) {
my($h) = $path_h;
$h =~ s#^/usr/include/##;
if ($^O eq 'VMS') { $h =~ s#.*vms\]#sys/# or $h =~ s#.*[:>\]]##; }
print XS qq{#include <$h>\n};
}
print XS "\n";
}
print XS <<"END" if $opt_g;
/* Global Data */
#define MY_CXT_KEY "${module}::_guts" XS_VERSION
typedef struct {
/* Put Global Data in here */
int dummy; /* you can access this elsewhere as MY_CXT.dummy */
} my_cxt_t;
START_MY_CXT
END
my %pointer_typedefs;
my %struct_typedefs;
sub td_is_pointer {
my $type = shift;
my $out = $pointer_typedefs{$type};
return $out if defined $out;
my $otype = $type;
$out = ($type =~ /\*$/);
# This converts only the guys which do not have trailing part in the typedef
if (not $out
and $typedef_rex and $type =~ s/($typedef_rex)/$typedefs_pre{$1}/go) {
$type = normalize_type($type);
print "Is-Pointer: Type mutation via typedefs: $otype ==> $type\n"
if $opt_d;
$out = td_is_pointer($type);
}
return ($pointer_typedefs{$otype} = $out);
}
sub td_is_struct {
my $type = shift;
my $out = $struct_typedefs{$type};
return $out if defined $out;
my $otype = $type;
$out = ($type =~ /^(struct|union)\b/) && !td_is_pointer($type);
# This converts only the guys which do not have trailing part in the typedef
if (not $out
and $typedef_rex and $type =~ s/($typedef_rex)/$typedefs_pre{$1}/go) {
$type = normalize_type($type);
print "Is-Struct: Type mutation via typedefs: $otype ==> $type\n"
if $opt_d;
$out = td_is_struct($type);
}
return ($struct_typedefs{$otype} = $out);
}
print_tievar_subs(\*XS, $_, $vdecl_hash{$_}) for @vdecls;
if( ! $opt_c ) {
# We write the "sample" files used when this module is built by perl without
# ExtUtils::Constant.
# h2xs will later check that these are the same as those generated by the
# code embedded into Makefile.PL
unless (-d $fallbackdirname) {
mkdir "$fallbackdirname" or die "Cannot mkdir $fallbackdirname: $!\n";
}
warn "Writing $ext$modpname/$fallbackdirname/$constscfname\n";
warn "Writing $ext$modpname/$fallbackdirname/$constsxsfname\n";
my $cfallback = File::Spec->catfile($fallbackdirname, $constscfname);
my $xsfallback = File::Spec->catfile($fallbackdirname, $constsxsfname);
WriteConstants ( C_FILE => $cfallback,
XS_FILE => $xsfallback,
DEFAULT_TYPE => $opt_t,
NAME => $module,
NAMES => \@const_specs,
);
print XS "#include \"$constscfname\"\n";
}
my $prefix = defined $opt_p ? "PREFIX = $opt_p" : '';
# Now switch from C to XS by issuing the first MODULE declaration:
print XS <<"END";
MODULE = $module PACKAGE = $module $prefix
END
# If a constant() function was #included then output a corresponding
# XS declaration:
print XS "INCLUDE: $constsxsfname\n" unless $opt_c;
print XS <<"END" if $opt_g;
BOOT:
{
MY_CXT_INIT;
/* If any of the fields in the my_cxt_t struct need
to be initialised, do it here.
*/
}
END
foreach (sort keys %const_xsub) {
print XS <<"END";
char *
$_()
CODE:
#ifdef $_
RETVAL = $_;
#else
croak("Your vendor has not defined the $module macro $_");
#endif
OUTPUT:
RETVAL
END
}
my %seen_decl;
my %typemap;
sub print_decl {
my $fh = shift;
my $decl = shift;
my ($type, $name, $args) = @$decl;
return if $seen_decl{$name}++; # Need to do the same for docs as well?
my @argnames = map {$_->[1]} @$args;
my @argtypes = map { normalize_type( $_->[0], 1 ) } @$args;
if ($opt_k) {
s/^\s*const\b\s*// for @argtypes;
}
my @argarrays = map { $_->[4] || '' } @$args;
my $numargs = @$args;
if ($numargs and $argtypes[-1] eq '...') {
$numargs--;
$argnames[-1] = '...';
}
local $" = ', ';
$type = normalize_type($type, 1);
print $fh <<"EOP";
$type
$name(@argnames)
EOP
for my $arg (0 .. $numargs - 1) {
print $fh <<"EOP";
$argtypes[$arg] $argnames[$arg]$argarrays[$arg]
EOP
}
}
sub print_tievar_subs {
my($fh, $name, $type) = @_;
print $fh <<END;
I32
_get_$name(IV index, SV *sv) {
dSP;
PUSHMARK(SP);
XPUSHs(sv);
PUTBACK;
(void)call_pv("$module\::_get_$name", G_DISCARD);
return (I32)0;
}
I32
_set_$name(IV index, SV *sv) {
dSP;
PUSHMARK(SP);
XPUSHs(sv);
PUTBACK;
(void)call_pv("$module\::_set_$name", G_DISCARD);
return (I32)0;
}
END
}
sub print_tievar_xsubs {
my($fh, $name, $type) = @_;
print $fh <<END;
void
_tievar_$name(sv)
SV* sv
PREINIT:
struct ufuncs uf;
CODE:
uf.uf_val = &_get_$name;
uf.uf_set = &_set_$name;
uf.uf_index = (IV)&_get_$name;
sv_magic(sv, 0, 'U', (char*)&uf, sizeof(uf));
void
_get_$name(THIS)
$type THIS = NO_INIT
CODE:
THIS = $name;
OUTPUT:
SETMAGIC: DISABLE
THIS
void
_set_$name(THIS)
$type THIS
CODE:
$name = THIS;
END
}
sub print_accessors {
my($fh, $name, $struct) = @_;
return unless defined $struct && $name !~ /\s|_ANON/;
$name = normalize_type($name);
my $ptrname = normalize_type("$name *");
print $fh <<"EOF";
MODULE = $module PACKAGE = ${name} $prefix
$name *
_to_ptr(THIS)
$name THIS = NO_INIT
PROTOTYPE: \$
CODE:
if (sv_derived_from(ST(0), "$name")) {
STRLEN len;
char *s = SvPV((SV*)SvRV(ST(0)), len);
if (len != sizeof(THIS))
croak("Size \%d of packed data != expected \%d",
len, sizeof(THIS));
RETVAL = ($name *)s;
}
else
croak("THIS is not of type $name");
OUTPUT:
RETVAL
$name
new(CLASS)
char *CLASS = NO_INIT
PROTOTYPE: \$
CODE:
Zero((void*)&RETVAL, sizeof(RETVAL), char);
OUTPUT:
RETVAL
MODULE = $module PACKAGE = ${name}Ptr $prefix
EOF
my @items = @$struct;
while (@items) {
my $item = shift @items;
if ($item->[0] =~ /_ANON/) {
if (defined $item->[2]) {
push @items, map [
@$_[0, 1], "$item->[2]_$_->[2]", "$item->[2].$_->[2]",
], @{ $structs{$item->[0]} };
} else {
push @items, @{ $structs{$item->[0]} };
}
} else {
my $type = normalize_type($item->[0]);
my $ttype = $structs{$type} ? normalize_type("$type *") : $type;
print $fh <<"EOF";
$ttype
$item->[2](THIS, __value = NO_INIT)
$ptrname THIS
$type __value
PROTOTYPE: \$;\$
CODE:
if (items > 1)
THIS->$item->[-1] = __value;
RETVAL = @{[
$type eq $ttype ? "THIS->$item->[-1]" : "&(THIS->$item->[-1])"
]};
OUTPUT:
RETVAL
EOF
}
}
}
sub accessor_docs {
my($name, $struct) = @_;
return unless defined $struct && $name !~ /\s|_ANON/;
$name = normalize_type($name);
my $ptrname = $name . 'Ptr';
my @items = @$struct;
my @list;
while (@items) {
my $item = shift @items;
if ($item->[0] =~ /_ANON/) {
if (defined $item->[2]) {
push @items, map [
@$_[0, 1], "$item->[2]_$_->[2]", "$item->[2].$_->[2]",
], @{ $structs{$item->[0]} };
} else {
push @items, @{ $structs{$item->[0]} };
}
} else {
push @list, $item->[2];
}
}
my $methods = (join '(...)>, C<', @list) . '(...)';
my $pod = <<"EOF";
#
#=head2 Object and class methods for C<$name>/C<$ptrname>
#
#The principal Perl representation of a C object of type C<$name> is an
#object of class C<$ptrname> which is a reference to an integer
#representation of a C pointer. To create such an object, one may use
#a combination
#
# my \$buffer = $name->new();
# my \$obj = \$buffer->_to_ptr();
#
#This exercises the following two methods, and an additional class
#C<$name>, the internal representation of which is a reference to a
#packed string with the C structure. Keep in mind that \$buffer should
#better survive longer than \$obj.
#
#=over
#
#=item C<\$object_of_type_$name-E<gt>_to_ptr()>
#
#Converts an object of type C<$name> to an object of type C<$ptrname>.
#
#=item C<$name-E<gt>new()>
#
#Creates an empty object of type C<$name>. The corresponding packed
#string is zeroed out.
#
#=item C<$methods>
#
#return the current value of the corresponding element if called
#without additional arguments. Set the element to the supplied value
#(and return the new value) if called with an additional argument.
#
#Applicable to objects of type C<$ptrname>.
#
#=back
#
EOF
$pod =~ s/^\#//gm;
return $pod;
}
# Should be called before any actual call to normalize_type().
sub get_typemap {
# We do not want to read ./typemap by obvios reasons.
my @tm = qw(../../../typemap ../../typemap ../typemap);
my $stdtypemap = "$Config::Config{privlib}/ExtUtils/typemap";
unshift @tm, $stdtypemap;
my $proto_re = "[" . quotemeta('\$%&*@;') . "]" ;
# Start with useful default values
$typemap{float} = 'T_NV';
foreach my $typemap (@tm) {
next unless -e $typemap ;
# skip directories, binary files etc.
warn " Scanning $typemap\n";
warn("Warning: ignoring non-text typemap file '$typemap'\n"), next
unless -T $typemap ;
open(TYPEMAP, "<", $typemap)
or warn ("Warning: could not open typemap file '$typemap': $!\n"), next;
my $mode = 'Typemap';
while (<TYPEMAP>) {
next if /^\s*\#/;
if (/^INPUT\s*$/) { $mode = 'Input'; next; }
elsif (/^OUTPUT\s*$/) { $mode = 'Output'; next; }
elsif (/^TYPEMAP\s*$/) { $mode = 'Typemap'; next; }
elsif ($mode eq 'Typemap') {
next if /^\s*($|\#)/ ;
my ($type, $image);
if ( ($type, $image) =
/^\s*(.*?\S)\s+(\S+)\s*($proto_re*)\s*$/o
# This may reference undefined functions:
and not ($image eq 'T_PACKED' and $typemap eq $stdtypemap)) {
$typemap{normalize_type($type)} = $image;
}
}
}
close(TYPEMAP) or die "Cannot close $typemap: $!";
}
%std_types = %types_seen;
%types_seen = ();
}
sub normalize_type { # Second arg: do not strip const's before \*
my $type = shift;
my $do_keep_deep_const = shift;
# If $do_keep_deep_const this is heuristic only
my $keep_deep_const = ($do_keep_deep_const ? '\b(?![^(,)]*\*)' : '');
my $ignore_mods
= "(?:\\b(?:(?:__const__|const)$keep_deep_const|static|inline|__inline__)\\b\\s*)*";
if ($do_keep_deep_const) { # Keep different compiled /RExen/o separately!
$type =~ s/$ignore_mods//go;
}
else {
$type =~ s/$ignore_mods//go;
}
$type =~ s/([^\s\w])/ $1 /g;
$type =~ s/\s+$//;
$type =~ s/^\s+//;
$type =~ s/\s+/ /g;
$type =~ s/\* (?=\*)/*/g;
$type =~ s/\. \. \./.../g;
$type =~ s/ ,/,/g;
$types_seen{$type}++
unless $type eq '...' or $type eq 'void' or $std_types{$type};
$type;
}
my $need_opaque;
sub assign_typemap_entry {
my $type = shift;
my $otype = $type;
my $entry;
if ($tmask and $type =~ /$tmask/) {
print "Type $type matches -o mask\n" if $opt_d;
$entry = (td_is_struct($type) ? "T_OPAQUE_STRUCT" : "T_PTROBJ");
}
elsif ($typedef_rex and $type =~ s/($typedef_rex)/$typedefs_pre{$1}/go) {
$type = normalize_type $type;
print "Type mutation via typedefs: $otype ==> $type\n" if $opt_d;
$entry = assign_typemap_entry($type);
}
# XXX good do better if our UV happens to be long long
return "T_NV" if $type =~ /^(unsigned\s+)?long\s+(long|double)\z/;
$entry ||= $typemap{$otype}
|| (td_is_struct($type) ? "T_OPAQUE_STRUCT" : "T_PTROBJ");
$typemap{$otype} = $entry;
$need_opaque = 1 if $entry eq "T_OPAQUE_STRUCT";
return $entry;
}
for (@vdecls) {
print_tievar_xsubs(\*XS, $_, $vdecl_hash{$_});
}
if ($opt_x) {
for my $decl (@$fdecls_parsed) { print_decl(\*XS, $decl) }
if ($opt_a) {
while (my($name, $struct) = each %structs) {
print_accessors(\*XS, $name, $struct);
}
}
}
close XS;
if (%types_seen) {
my $type;
warn "Writing $ext$modpname/typemap\n";
open TM, ">", "typemap" or die "Cannot open typemap file for write: $!";
for $type (sort keys %types_seen) {
my $entry = assign_typemap_entry $type;
print TM $type, "\t" x (5 - int((length $type)/8)), "\t$entry\n"
}
print TM <<'EOP' if $need_opaque; # Older Perls do not have correct entry
#############################################################################
INPUT
T_OPAQUE_STRUCT
if (sv_derived_from($arg, \"${ntype}\")) {
STRLEN len;
char *s = SvPV((SV*)SvRV($arg), len);
if (len != sizeof($var))
croak(\"Size %d of packed data != expected %d\",
len, sizeof($var));
$var = *($type *)s;
}
else
croak(\"$var is not of type ${ntype}\")
#############################################################################
OUTPUT
T_OPAQUE_STRUCT
sv_setref_pvn($arg, \"${ntype}\", (char *)&$var, sizeof($var));
EOP
close TM or die "Cannot close typemap file for write: $!";
}
} # if( ! $opt_X )
warn "Writing $ext$modpname/Makefile.PL\n";
open(PL, ">", "Makefile.PL") || die "Can't create $ext$modpname/Makefile.PL: $!\n";
my $prereq_pm = '';
if ( $compat_version < 5.006002 and $new_test )
{
$prereq_pm .= q%'Test::More' => 0, %;
}
elsif ( $compat_version < 5.006002 )
{
$prereq_pm .= q%'Test' => 0, %;
}
if (!$opt_X and $use_xsloader)
{
$prereq_pm .= q%'XSLoader' => 0, %;
}
print PL <<"END";
use $compat_version;
use ExtUtils::MakeMaker;
# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.
WriteMakefile(
NAME => '$module',
VERSION_FROM => '$modpmname', # finds \$VERSION, requires EU::MM from perl >= 5.5
PREREQ_PM => {$prereq_pm}, # e.g., Module::Name => 1.1
ABSTRACT_FROM => '$modpmname', # retrieve abstract from module
AUTHOR => '$author <$email>',
#LICENSE => 'perl',
#Value must be from legacy list of licenses here
#http://search.cpan.org/perldoc?Module%3A%3ABuild%3A%3AAPI
END
if (!$opt_X) { # print C stuff, unless XS is disabled
$opt_F = '' unless defined $opt_F;
my $I = (((glob '*.h') || (glob '*.hh')) ? '-I.' : '');
my $Ihelp = ($I ? '-I. ' : '');
my $Icomment = ($I ? '' : <<EOC);
# Insert -I. if you add *.h files later:
EOC
print PL <<END;
LIBS => ['$extralibs'], # e.g., '-lm'
DEFINE => '$opt_F', # e.g., '-DHAVE_SOMETHING'
$Icomment INC => '$I', # e.g., '${Ihelp}-I/usr/include/other'
END
my $C = grep {$_ ne "$modfname.c"}
(glob '*.c'), (glob '*.cc'), (glob '*.C');
my $Cpre = ($C ? '' : '# ');
my $Ccomment = ($C ? '' : <<EOC);
# Un-comment this if you add C files to link with later:
EOC
print PL <<END;
$Ccomment ${Cpre}OBJECT => '\$(O_FILES)', # link all the C files too
END
} # ' # Grr
print PL ");\n";
if (!$opt_c) {
my $generate_code =
WriteMakefileSnippet ( C_FILE => $constscfname,
XS_FILE => $constsxsfname,
DEFAULT_TYPE => $opt_t,
NAME => $module,
NAMES => \@const_specs,
);
print PL <<"END";
if (eval {require ExtUtils::Constant; 1}) {
# If you edit these definitions to change the constants used by this module,
# you will need to use the generated $constscfname and $constsxsfname
# files to replace their "fallback" counterparts before distributing your
# changes.
$generate_code
}
else {
use File::Copy;
use File::Spec;
foreach my \$file ('$constscfname', '$constsxsfname') {
my \$fallback = File::Spec->catfile('$fallbackdirname', \$file);
copy (\$fallback, \$file) or die "Can't copy \$fallback to \$file: \$!";
}
}
END
eval $generate_code;
if ($@) {
warn <<"EOM";
Attempting to test constant code in $ext$modpname/Makefile.PL:
$generate_code
__END__
gave unexpected error $@
Please report the circumstances of this bug in h2xs version $H2XS_VERSION
using the perlbug script.
EOM
} else {
my $fail;
foreach my $file ($constscfname, $constsxsfname) {
my $fallback = File::Spec->catfile($fallbackdirname, $file);
if (compare($file, $fallback)) {
warn << "EOM";
Files "$ext$modpname/$fallbackdirname/$file" and "$ext$modpname/$file" differ.
EOM
$fail++;
}
}
if ($fail) {
warn fill ('','', <<"EOM") . "\n";
It appears that the code in $ext$modpname/Makefile.PL does not autogenerate
the files $ext$modpname/$constscfname and $ext$modpname/$constsxsfname
correctly.
Please report the circumstances of this bug in h2xs version $H2XS_VERSION
using the perlbug script.
EOM
} else {
unlink $constscfname, $constsxsfname;
}
}
}
close(PL) || die "Can't close $ext$modpname/Makefile.PL: $!\n";
# Create a simple README since this is a CPAN requirement
# and it doesn't hurt to have one
warn "Writing $ext$modpname/README\n";
open(RM, ">", "README") || die "Can't create $ext$modpname/README:$!\n";
my $thisyear = (gmtime)[5] + 1900;
my $rmhead = "$modpname version $TEMPLATE_VERSION";
my $rmheadeq = "=" x length($rmhead);
my $rm_prereq;
if ( $compat_version < 5.006002 and $new_test )
{
$rm_prereq = 'Test::More';
}
elsif ( $compat_version < 5.006002 )
{
$rm_prereq = 'Test';
}
else
{
$rm_prereq = 'blah blah blah';
}
print RM <<_RMEND_;
$rmhead
$rmheadeq
The README is used to introduce the module and provide instructions on
how to install the module, any machine dependencies it may have (for
example C compilers and installed libraries) and any other information
that should be provided before the module is installed.
A README file is required for CPAN modules since CPAN extracts the
README file from a module distribution so that people browsing the
archive can use it get an idea of the modules uses. It is usually a
good idea to provide version information here so that people can
decide whether fixes for the module are worth downloading.
INSTALLATION
To install this module type the following:
perl Makefile.PL
make
make test
make install
DEPENDENCIES
This module requires these other modules and libraries:
$rm_prereq
COPYRIGHT AND LICENCE
Put the correct copyright and licence information here.
$licence
_RMEND_
close(RM) || die "Can't close $ext$modpname/README: $!\n";
my $testdir = "t";
my $testfile = "$testdir/$modpname.t";
unless (-d "$testdir") {
mkdir "$testdir" or die "Cannot mkdir $testdir: $!\n";
}
warn "Writing $ext$modpname/$testfile\n";
my $tests = @const_names ? 2 : 1;
open EX, ">", "$testfile" or die "Can't create $ext$modpname/$testfile: $!\n";
print EX <<_END_;
# Before 'make install' is performed this script should be runnable with
# 'make test'. After 'make install' it should work as 'perl $modpname.t'
#########################
# change 'tests => $tests' to 'tests => last_test_to_print';
use strict;
use warnings;
_END_
my $test_mod = 'Test::More';
if ( $old_test or ($compat_version < 5.006002 and not $new_test ))
{
my $test_mod = 'Test';
print EX <<_END_;
use Test;
BEGIN { plan tests => $tests };
use $module;
ok(1); # If we made it this far, we're ok.
_END_
if (@const_names) {
my $const_names = join " ", @const_names;
print EX <<'_END_';
my $fail;
foreach my $constname (qw(
_END_
print EX wrap ("\t", "\t", $const_names);
print EX (")) {\n");
print EX <<_END_;
next if (eval "my \\\$a = \$constname; 1");
if (\$\@ =~ /^Your vendor has not defined $module macro \$constname/) {
print "# pass: \$\@";
} else {
print "# fail: \$\@";
\$fail = 1;
}
}
if (\$fail) {
print "not ok 2\\n";
} else {
print "ok 2\\n";
}
_END_
}
}
else
{
print EX <<_END_;
use Test::More tests => $tests;
BEGIN { use_ok('$module') };
_END_
if (@const_names) {
my $const_names = join " ", @const_names;
print EX <<'_END_';
my $fail = 0;
foreach my $constname (qw(
_END_
print EX wrap ("\t", "\t", $const_names);
print EX (")) {\n");
print EX <<_END_;
next if (eval "my \\\$a = \$constname; 1");
if (\$\@ =~ /^Your vendor has not defined $module macro \$constname/) {
print "# pass: \$\@";
} else {
print "# fail: \$\@";
\$fail = 1;
}
}
ok( \$fail == 0 , 'Constants' );
_END_
}
}
print EX <<_END_;
#########################
# Insert your test code below, the $test_mod module is use()ed here so read
# its man page ( perldoc $test_mod ) for help writing this test script.
_END_
close(EX) || die "Can't close $ext$modpname/$testfile: $!\n";
unless ($opt_C) {
warn "Writing $ext$modpname/Changes\n";
$" = ' ';
open(EX, ">", "Changes") || die "Can't create $ext$modpname/Changes: $!\n";
@ARGS = map {/[\s\"\'\`\$*?^|&<>\[\]\{\}\(\)]/ ? "'$_'" : $_} @ARGS;
print EX <<EOP;
Revision history for Perl extension $module.
$TEMPLATE_VERSION @{[scalar localtime]}
\t- original version; created by h2xs $H2XS_VERSION with options
\t\t@ARGS
EOP
close(EX) || die "Can't close $ext$modpname/Changes: $!\n";
}
warn "Writing $ext$modpname/MANIFEST\n";
open(MANI, '>', 'MANIFEST') or die "Can't create MANIFEST: $!";
my @files = grep { -f } (<*>, <t/*>, <$fallbackdirname/*>, <$modpmdir/*>);
if (!@files) {
eval {opendir(D,'.');};
unless ($@) { @files = readdir(D); closedir(D); }
}
if (!@files) { @files = map {chomp && $_} `ls`; }
if ($^O eq 'VMS') {
foreach (@files) {
# Clip trailing '.' for portability -- non-VMS OSs don't expect it
s%\.$%%;
# Fix up for case-sensitive file systems
s/$modfname/$modfname/i && next;
$_ = "\U$_" if $_ eq 'manifest' or $_ eq 'changes';
$_ = 'Makefile.PL' if $_ eq 'makefile.pl';
}
}
print MANI join("\n",@files), "\n";
close MANI;
|