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
|
dnl Project : tin - a Usenet reader
dnl Module : aclocal.m4
dnl Author : Thomas E. Dickey <dickey@clark.net>
dnl Created : 24.08.95
dnl Updated : 20.02.98
dnl Notes :
dnl
dnl Copyright 1996,1997,1998 by Thomas Dickey
dnl You may freely copy or redistribute this software,
dnl so long as there is no profit made from its use, sale
dnl trade or reproduction. You may not change this copy-
dnl right notice, and it must be included in any copy made
dnl
dnl Macros used in TIN auto-configuration script.
dnl
dnl ---------------------------------------------------------------------------
dnl ---------------------------------------------------------------------------
dnl Add an include-directory to $CPPFLAGS. Don't add /usr/include, since it's
dnl redundant. We don't normally need to add -I/usr/local/include for gcc,
dnl but old versions (and some misinstalled ones) need that.
AC_DEFUN([CF_ADD_INCDIR],
[
for cf_add_incdir in $1
do
while true
do
case $cf_add_incdir in
/usr/include) # (vi
;;
*) # (vi
CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
;;
esac
cf_top_incdir=`echo $cf_add_incdir | sed -e 's:/include/.*$:/include:'`
test "$cf_top_incdir" = "$cf_add_incdir" && break
cf_add_incdir="$cf_top_incdir"
done
done
])dnl
dnl ---------------------------------------------------------------------------
dnl This is adapted from the macros 'fp_PROG_CC_STDC' and 'fp_C_PROTOTYPES'
dnl in the sharutils 4.2 distribution.
AC_DEFUN([CF_ANSI_CC_CHECK],
[
AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C)
AC_CACHE_VAL(cf_cv_ansi_cc,[
cf_cv_ansi_cc=no
cf_save_CFLAGS="$CFLAGS"
# Don't try gcc -ansi; that turns off useful extensions and
# breaks some systems' header files.
# AIX -qlanglvl=ansi
# Ultrix and OSF/1 -std1
# HP-UX -Aa -D_HPUX_SOURCE
# SVR4 -Xc
# UnixWare 1.2 (cannot use -Xc, since ANSI/POSIX clashes)
for cf_arg in "-DCC_HAS_PROTOS" "" -qlanglvl=ansi -std1 "-Aa -D_HPUX_SOURCE" -Xc
do
CFLAGS="$cf_save_CFLAGS $cf_arg"
AC_TRY_COMPILE(
[
#ifndef CC_HAS_PROTOS
#if !defined(__STDC__) || __STDC__ != 1
choke me
#endif
#endif
],[
int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};],
[cf_cv_ansi_cc="$cf_arg"; break])
done
CFLAGS="$cf_save_CFLAGS"
])
AC_MSG_RESULT($cf_cv_ansi_cc)
if test "$cf_cv_ansi_cc" != "no"; then
if test ".$cf_cv_ansi_cc" != ".-DCC_HAS_PROTOS"; then
CFLAGS="$CFLAGS $cf_cv_ansi_cc"
else
AC_DEFINE(CC_HAS_PROTOS)
fi
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl For programs that must use an ANSI compiler, obtain compiler options that
dnl will make it recognize prototypes. We'll do preprocessor checks in other
dnl macros, since tools such as unproto can fake prototypes, but only part of
dnl the preprocessor.
AC_DEFUN([CF_ANSI_CC_REQD],
[AC_REQUIRE([CF_ANSI_CC_CHECK])
if test "$cf_cv_ansi_cc" = "no"; then
AC_ERROR(
[Your compiler does not appear to recognize prototypes.
You have the following choices:
a. adjust your compiler options
b. get an up-to-date compiler
c. use a wrapper such as unproto])
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl Allow user to disable a normally-on option.
AC_DEFUN([CF_ARG_DISABLE],
[CF_ARG_OPTION($1,[$2 (default: on)],[$3],[$4],yes)])dnl
dnl ---------------------------------------------------------------------------
dnl Allow user to enable a normally-off option.
AC_DEFUN([CF_ARG_ENABLE],
[CF_ARG_OPTION($1,[$2 (default: off)],[$3],[$4],no)])dnl
dnl ---------------------------------------------------------------------------
dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
dnl values.
dnl
dnl Parameters:
dnl $1 = option name
dnl $2 = help-string
dnl $3 = action to perform if option is not default
dnl $4 = action if perform if option is default
dnl $5 = default option value (either 'yes' or 'no')
AC_DEFUN([CF_ARG_OPTION],
[AC_ARG_ENABLE($1,[$2],[test "$enableval" != ifelse($5,no,yes,no) && enableval=ifelse($5,no,no,yes)
if test "$enableval" != "$5" ; then
ifelse($3,,[ :]dnl
,[ $3]) ifelse($4,,,[
else
$4])
fi],[enableval=$5 ifelse($4,,,[
$4
])dnl
])])dnl
dnl ---------------------------------------------------------------------------
dnl Check for missing declarations in the system headers (adapted from vile).
dnl
dnl CHECK_DECL_FLAG and CHECK_DECL_HDRS must be set in configure.in
AC_DEFUN([CF_CHECK_1_DECL],
[
AC_MSG_CHECKING([for missing "$1" extern])
AC_CACHE_VAL([cf_cv_func_$1],[
CF_MSG_LOG([for missing "$1" external])
cf_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $CHECK_DECL_FLAG"
AC_TRY_LINK([
$CHECK_DECL_HDRS
#undef $1
struct zowie { int a; double b; struct zowie *c; char d; };
extern struct zowie *$1();
],
[
],
[eval 'cf_cv_func_'$1'=yes'],
[eval 'cf_cv_func_'$1'=no'])
CFLAGS="$cf_save_CFLAGS"
])
eval 'cf_result=$cf_cv_func_'$1
AC_MSG_RESULT($cf_result)
test $cf_result = yes && AC_DEFINE_UNQUOTED(DECL_$2)
])dnl
dnl ---------------------------------------------------------------------------
AC_DEFUN([CF_CHECK_DECL],
[for ac_func in $1
do
CF_UPPER(ac_tr_func,$ac_func)
CF_CHECK_1_DECL(${ac_func}, ${ac_tr_func})dnl
done
])dnl
dnl ---------------------------------------------------------------------------
dnl Check for data that is usually declared in <stdio.h> or <errno.h>
dnl $1 = the name to check
AC_DEFUN([CF_CHECK_ERRNO],
[
AC_MSG_CHECKING([declaration of $1])
AC_CACHE_VAL(cf_cv_dcl_$1,[
AC_TRY_COMPILE([
#include <stdio.h>
#include <sys/types.h>
#include <errno.h> ],
[long x = (long) $1],
[eval 'cf_cv_dcl_'$1'=yes'],
[eval 'cf_cv_dcl_'$1'=no]')])
eval 'cf_result=$cf_cv_dcl_'$1
AC_MSG_RESULT($cf_result)
# It's possible (for near-UNIX clones) that the data doesn't exist
AC_CACHE_VAL(cf_cv_have_$1,[
if test $cf_result = no ; then
eval 'cf_result=DECL_'$1
CF_UPPER(cf_result,$cf_result)
AC_DEFINE_UNQUOTED($cf_result)
AC_MSG_CHECKING([existence of $1])
AC_TRY_LINK([
#undef $1
extern long $1;
],
[$1 = 2],
[eval 'cf_cv_have_'$1'=yes'],
[eval 'cf_cv_have_'$1'=no'])
eval 'cf_result=$cf_cv_have_'$1
AC_MSG_RESULT($cf_result)
else
eval 'cf_cv_have_'$1'=yes'
fi
])
eval 'cf_result=HAVE_'$1
CF_UPPER(cf_result,$cf_result)
eval 'test $cf_cv_have_'$1' = yes && AC_DEFINE_UNQUOTED($cf_result)'
])dnl
dnl ---------------------------------------------------------------------------
dnl Check if the compiler allows nested parameter lists (some don't)
AC_DEFUN([CF_CHECK_NESTED_PARAMS],
[
AC_MSG_CHECKING([if nested parameters work])
AC_CACHE_VAL(cf_cv_nested_params,[
AC_TRY_COMPILE([],
[extern void (*sigdisp(int sig, void (*func)(int sig)))(int sig)],
[cf_cv_nested_params=yes],
[cf_cv_nested_params=no])
])
AC_MSG_RESULT($cf_cv_nested_params)
test $cf_cv_nested_params = yes && AC_DEFINE(HAVE_NESTED_PARAMS)
])dnl
dnl ---------------------------------------------------------------------------
dnl Check if the compiler uses 'void *' for qsort's compare function parameters
dnl (i.e., it's an ANSI prototype).
AC_DEFUN([CF_COMPTYPE],
[
AC_MSG_CHECKING([for ANSI qsort])
AC_CACHE_VAL(cf_cv_comptype,[
AC_TRY_COMPILE([
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif],
[extern int compare(const void *, const void *);
char *foo = "string";
qsort(foo, sizeof(foo)/sizeof(*foo), sizeof(*foo), compare)],
[cf_cv_comptype=yes],
[cf_cv_comptype=no])
])
AC_MSG_RESULT($cf_cv_comptype)
if test $cf_cv_comptype = yes; then
AC_DEFINE(HAVE_COMPTYPE_VOID)
else
AC_DEFINE(HAVE_COMPTYPE_CHAR)
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl Check if curses supports color. (Note that while SVr3 curses supports
dnl color, it does this differently from SVr4 curses; more work would be needed
dnl to accommodate SVr3).
dnl
AC_DEFUN([CF_COLOR_CURSES],
[
AC_MSG_CHECKING(if curses supports color attributes)
AC_CACHE_VAL(cf_cv_color_curses,[
AC_TRY_LINK([
#include <$cf_cv_ncurses_header>
],
[chtype x = COLOR_BLUE;
has_colors();
start_color();
#ifndef NCURSES_BROKEN
wbkgd(curscr, getbkgd(stdscr)); /* X/Open XPG4 aka SVr4 Curses */
#endif
],
[cf_cv_color_curses=yes],
[cf_cv_color_curses=no])
])
AC_MSG_RESULT($cf_cv_color_curses)
if test $cf_cv_color_curses = yes ; then
AC_DEFINE(COLOR_CURSES)
test ".$cf_cv_ncurses_broken" != .yes && AC_DEFINE(HAVE_GETBKGD)
fi
])
dnl ---------------------------------------------------------------------------
dnl Check if the application can dump core (for debugging).
AC_DEFUN([CF_COREFILE],
[
AC_MSG_CHECKING([if application can dump core])
AC_CACHE_VAL(cf_cv_corefile,[
AC_TRY_RUN([
#include <signal.h>
#include <sys/types.h>
#include <sys/stat.h>
int found()
{
struct stat sb;
return ((stat("core", &sb) == 0 /* UNIX */
|| stat("conftest.core", &sb) == 0 /* FreeBSD */
)
&& ((sb.st_mode & S_IFMT) == S_IFREG));
}
int main()
{
#ifdef __amiga__
/* Nicholas d'Alterio (nagd@ic.ac.uk) reports that the check for ability to
* core dump causes the machine to crash - reason unknown (gcc 2.7.2)
*/
exit(1);
#else
int pid, status;
if (found())
unlink("core");
if (found())
exit(1);
if ((pid = fork()) != 0) {
while (wait(&status) <= 0)
;
} else {
abort(); /* this will dump core, if anything will */
}
if (found()) {
unlink("core");
exit(0);
}
exit(1);
#endif
}],
[cf_cv_corefile=yes],
[cf_cv_corefile=no],
[cf_cv_corefile=unknown])])
AC_MSG_RESULT($cf_cv_corefile)
test $cf_cv_corefile = yes && AC_DEFINE(HAVE_COREFILE)
])dnl
dnl ---------------------------------------------------------------------------
dnl Test for ANSI token expansion (used in 'assert').
AC_DEFUN([CF_CPP_CONCATS],
[
AC_MSG_CHECKING([for ansi token concatenation])
AC_CACHE_VAL(cf_cv_cpp_concats,[
AC_TRY_COMPILE([
#define concat(a,b) a ## b],
[char *firstlast = "y", *s = concat(first,last)],
[cf_cv_cpp_concats=yes],
[cf_cv_cpp_concats=no])
])
AC_MSG_RESULT($cf_cv_cpp_concats)
test $cf_cv_cpp_concats = yes && AC_DEFINE(CPP_DOES_CONCAT)
])dnl
dnl ---------------------------------------------------------------------------
dnl Test for ANSI token expansion (used in 'assert').
AC_DEFUN([CF_CPP_EXPANDS],
[
AC_MSG_CHECKING([for ansi token expansion/substitution])
AC_CACHE_VAL(cf_cv_cpp_expands,[
AC_TRY_COMPILE([
#define string(n) #n],
[char *s = string(token)],
[cf_cv_cpp_expands=yes],
[cf_cv_cpp_expands=no])
])
AC_MSG_RESULT($cf_cv_cpp_expands)
test $cf_cv_cpp_expands = yes && AC_DEFINE(CPP_DOES_EXPAND)
])dnl
dnl ---------------------------------------------------------------------------
dnl Look for the curses libraries. Older curses implementations may require
dnl termcap/termlib to be linked as well.
AC_DEFUN([CF_CURSES_LIBS],[
AC_CHECK_FUNC(initscr,,[
case $host_os in #(vi
freebsd*) #(vi
AC_CHECK_LIB(mytinfo,tgoto,[LIBS="-lmytinfo $LIBS"])
;;
*hp-hpux10.*)
AC_CHECK_LIB(Hcurses,initscr,[
# HP's header uses __HP_CURSES, but user claims _HP_CURSES.
LIBS="-lHcurses $LIBS"
CFLAGS="-D__HP_CURSES -D_HP_CURSES $CFLAGS"
ac_cv_func_initscr=yes
],[
AC_CHECK_LIB(cur_color,initscr,[
LIBS="-lcur_color $LIBS"
CFLAGS="-I/usr/include/curses_colr $CFLAGS"
ac_cv_func_initscr=yes
])])
;;
esac
if test ".$With5lib" != ".no" ; then
if test -d /usr/5lib ; then
# SunOS 3.x or 4.x
CPPFLAGS="$CPPFLAGS -I/usr/5include"
LIBS="$LIBS -L/usr/5lib"
fi
fi
if test ".$ac_cv_func_initscr" != .yes ; then
cf_save_LIBS="$LIBS"
cf_term_lib=""
cf_curs_lib=""
# Check for library containing tgoto. Do this before curses library
# because it may be needed to link the test-case for initscr.
AC_CHECK_FUNC(tgoto,[cf_term_lib=predefined],[
for cf_term_lib in termcap termlib unknown
do
AC_CHECK_LIB($cf_term_lib,tgoto,[break])
done
])
# Check for library containing initscr
test "$cf_term_lib" != predefined && test "$cf_term_lib" != unknown && LIBS="-l$cf_term_lib $cf_save_LIBS"
for cf_curs_lib in curses ncurses xcurses cursesX jcurses unknown
do
AC_CHECK_LIB($cf_curs_lib,initscr,[break])
done
test $cf_curs_lib = unknown && AC_ERROR(no curses library found)
LIBS="-l$cf_curs_lib $cf_save_LIBS"
if test "$cf_term_lib" = unknown ; then
AC_MSG_CHECKING(if we can link with $cf_curs_lib library)
AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
[initscr()],
[cf_result=yes],
[cf_result=no])
AC_MSG_RESULT($cf_result)
test $cf_result = no && AC_ERROR(Cannot link curses library)
elif test "$cf_term_lib" != predefined ; then
AC_MSG_CHECKING(if we need both $cf_curs_lib and $cf_term_lib libraries)
AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
[initscr(); tgoto((char *)0, 0, 0);],
[cf_result=no],
[
LIBS="-l$cf_curs_lib -l$cf_term_lib $cf_save_LIBS"
AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
[initscr()],
[cf_result=yes],
[cf_result=error])
])
AC_MSG_RESULT($cf_result)
fi
fi
])])
dnl ---------------------------------------------------------------------------
dnl Check if we should include <curses.h> to pick up prototypes for termcap
dnl functions. On terminfo systems, these are normally declared in <curses.h>,
dnl but may be in <term.h>. We check for termcap.h as an alternate, but it
dnl isn't standard (usually associated with GNU termcap).
dnl
dnl The 'tgoto()' function is declared in both terminfo and termcap.
dnl
dnl See CF_TYPE_OUTCHAR for more details.
AC_DEFUN([CF_CURSES_TERMCAP],
[
AC_REQUIRE([CF_CURSES_TERM_H])
AC_MSG_CHECKING(if we should include curses.h or termcap.h)
AC_CACHE_VAL(cf_cv_need_curses_h,[
cf_save_CFLAGS="$CFLAGS"
cf_cv_need_curses_h=no
for cf_t_opts in "" "NEED_TERMCAP_H"
do
for cf_c_opts in "" "NEED_CURSES_H"
do
CFLAGS="$cf_save_CFLAGS $CHECK_DECL_FLAG"
test -n "$cf_c_opts" && CFLAGS="$CFLAGS -D$cf_c_opts"
test -n "$cf_t_opts" && CFLAGS="$CFLAGS -D$cf_t_opts"
AC_TRY_LINK([/* $cf_c_opts $cf_t_opts */
$CHECK_DECL_HDRS],
[char *x = (char *)tgoto("")],
[test "$cf_cv_need_curses_h" = no && {
cf_cv_need_curses_h=maybe
cf_ok_c_opts=$cf_c_opts
cf_ok_t_opts=$cf_t_opts
}],
[echo "Recompiling with corrected call (C:$cf_c_opts, T:$cf_t_opts)" >&AC_FD_CC
AC_TRY_LINK([
$CHECK_DECL_HDRS],
[char *x = (char *)tgoto("",0,0)],
[cf_cv_need_curses_h=yes
cf_ok_c_opts=$cf_c_opts
cf_ok_t_opts=$cf_t_opts])])
CFLAGS="$cf_save_CFLAGS"
test "$cf_cv_need_curses_h" = yes && break
done
test "$cf_cv_need_curses_h" = yes && break
done
if test "$cf_cv_need_curses_h" != no ; then
echo "Curses/termcap test = $cf_cv_need_curses_h (C:$cf_ok_c_opts, T:$cf_ok_t_opts)" >&AC_FD_CC
if test -n "$cf_ok_c_opts" ; then
if test -n "$cf_ok_t_opts" ; then
cf_cv_need_curses_h=both
else
cf_cv_need_curses_h=curses.h
fi
elif test -n "$cf_ok_t_opts" ; then
cf_cv_need_curses_h=termcap.h
elif test "$cf_cv_have_term_h" = yes ; then
cf_cv_need_curses_h=term.h
else
cf_cv_need_curses_h=no
fi
fi
])
AC_MSG_RESULT($cf_cv_need_curses_h)
case $cf_cv_need_curses_h in
both) #(vi
AC_DEFINE_UNQUOTED(NEED_CURSES_H)
AC_DEFINE_UNQUOTED(NEED_TERMCAP_H)
;;
curses.h) #(vi
AC_DEFINE_UNQUOTED(NEED_CURSES_H)
;;
termcap.h) #(vi
AC_DEFINE_UNQUOTED(NEED_TERMCAP_H)
;;
esac
])dnl
dnl ---------------------------------------------------------------------------
dnl SVr4 curses should have term.h as well (where it puts the definitions of
dnl the low-level interface). This may not be true in old/broken implementations,
dnl as well as in misconfigured systems (e.g., gcc configured for Solaris 2.4
dnl running with Solaris 2.5.1).
AC_DEFUN([CF_CURSES_TERM_H],
[
AC_MSG_CHECKING([for term.h])
AC_CACHE_VAL(cf_cv_have_term_h,[
AC_TRY_COMPILE([
#include <curses.h>
#include <term.h>],
[WINDOW *x],
[cf_cv_have_term_h=yes],
[cf_cv_have_term_h=no])
])
AC_MSG_RESULT($cf_cv_have_term_h)
test $cf_cv_have_term_h = yes && AC_DEFINE(HAVE_TERM_H)
])dnl
dnl ---------------------------------------------------------------------------
dnl Check if 'errno' is declared in <errno.h>
AC_DEFUN([CF_ERRNO],
[
CF_CHECK_ERRNO(errno)
])dnl
dnl ---------------------------------------------------------------------------
dnl Look for a non-standard library, given parameters for AC_TRY_LINK. We
dnl prefer a standard location, and use -L options only if we do not find the
dnl library in the standard library location(s).
dnl $1 = library name
dnl $2 = includes
dnl $3 = code fragment to compile/link
dnl $4 = corresponding function-name
dnl
dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
dnl to use a -L option.
AC_DEFUN([CF_FIND_LIBRARY],
[
cf_cv_have_lib_$1=no
cf_libdir=""
AC_CHECK_FUNC($4,cf_cv_have_lib_$1=yes,[
cf_save_LIBS="$LIBS"
AC_MSG_CHECKING(for $4 in -l$1)
LIBS="-l$1 $LIBS"
AC_TRY_LINK([$2],[$3],
[AC_MSG_RESULT(yes)
cf_cv_have_lib_$1=yes
],
[AC_MSG_RESULT(no)
CF_LIBRARY_PATH(cf_search,$1)
for cf_libdir in $cf_search
do
AC_MSG_CHECKING(for -l$1 in $cf_libdir)
LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
AC_TRY_LINK([$2],[$3],
[AC_MSG_RESULT(yes)
cf_cv_have_lib_$1=yes
break],
[AC_MSG_RESULT(no)
LIBS="$cf_save_LIBS"])
done
])
])
if test $cf_cv_have_lib_$1 = no ; then
AC_ERROR(Cannot link $1 library)
fi
case $host_os in #(vi
linux*) # Suse Linux does not follow /usr/lib convention
$1="[$]$1 /lib"
;;
esac
])dnl
dnl ---------------------------------------------------------------------------
dnl Check if 'fork()' is available, and working. Amiga (and possibly other
dnl machines) have a non-working 'fork()' entrypoint.
AC_DEFUN([CF_FUNC_FORK],
[AC_MSG_CHECKING([for fork])
AC_CACHE_VAL(cf_cv_func_fork,[
AC_TRY_RUN([
int main()
{
if (fork() < 0)
exit(1);
exit(0);
}], [cf_cv_func_fork=yes],
[cf_cv_func_fork=no],
[cf_cv_func_fork=unknown])
])dnl
AC_MSG_RESULT($cf_cv_func_fork)
test $cf_cv_func_fork = yes && AC_DEFINE(HAVE_FORK)
])dnl
dnl ---------------------------------------------------------------------------
dnl Check for memmove, or a bcopy that can handle overlapping copy. If neither
dnl is found, add our own version of memmove to the list of objects.
AC_DEFUN([CF_FUNC_MEMMOVE],
[
if test ".$ac_cv_func_memmove" != .yes ; then
if test ".$ac_cv_func_bcopy" = ".yes" ; then
AC_MSG_CHECKING(if bcopy does overlapping moves)
AC_CACHE_VAL(cf_cv_good_bcopy,[
AC_TRY_RUN([
int main() {
static char data[] = "abcdefghijklmnopqrstuwwxyz";
char temp[40];
bcopy(data, temp, sizeof(data));
bcopy(temp+10, temp, 15);
bcopy(temp+5, temp+15, 10);
exit (strcmp(temp, "klmnopqrstuwwxypqrstuwwxyz"));
}
],
[cf_cv_good_bcopy=yes],
[cf_cv_good_bcopy=no],
[cf_cv_good_bcopy=unknown])
])
AC_MSG_RESULT($cf_cv_good_bcopy)
else
cf_cv_good_bcopy=no
fi
if test $cf_cv_good_bcopy = yes ; then
AC_DEFINE(USE_OK_BCOPY)
else
AC_DEFINE(USE_MY_MEMMOVE)
fi
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl Check if the 'system()' function returns a usable status, or if not, try
dnl to use the status returned by a SIGCHLD.
AC_DEFUN([CF_FUNC_SYSTEM],
[
AC_REQUIRE([CF_UNION_WAIT])
AC_MSG_CHECKING(if the system function returns usable child-status)
AC_CACHE_VAL(cf_cv_system_status,[
AC_TRY_RUN([
#include <stdio.h>
#include <signal.h>
#if HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
RETSIGTYPE signal_handler (int sig)
{
#if HAVE_TYPE_UNIONWAIT
union wait wait_status;
#else
int wait_status = 1;
#endif
int system_status;
wait (&wait_status);
system_status = WEXITSTATUS(wait_status); /* should be nonzero */
exit(system_status != 23);
}
int main()
{
/* this looks weird, but apparently the SIGCHLD gets there first on
* machines where 'system()' doesn't return a usable code, so ...
*/
signal (SIGCHLD, signal_handler);
system("exit 23");
exit(1);
}
],
[cf_cv_system_status=no],
[AC_TRY_RUN(
[int main() { exit(system("exit 23") != (23 << 8)); }],
[cf_cv_system_status=yes],
[cf_cv_system_status=unknown],
[cf_cv_system_status=unknown])],
[cf_cv_system_status=unknown])
])
AC_MSG_RESULT($cf_cv_system_status)
test $cf_cv_system_status = no && AC_DEFINE(USE_SYSTEM_STATUS)
])dnl
dnl ---------------------------------------------------------------------------
dnl Check if the compiler supports useful warning options. There's a few that
dnl we don't use, simply because they're too noisy:
dnl
dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
dnl -Wredundant-decls (system headers make this too noisy)
dnl -Wtraditional (combines too many unrelated messages, only a few useful)
dnl -Wwrite-strings (too noisy, but should review occasionally)
dnl -pedantic
dnl
AC_DEFUN([CF_GCC_WARNINGS],
[
if test -n "$GCC"
then
changequote(,)dnl
cat > conftest.$ac_ext <<EOF
#line __oline__ "configure"
int main(int argc, char *argv[]) { return argv[argc-1] == 0; }
EOF
changequote([,])dnl
AC_CHECKING([for gcc warning options])
cf_save_CFLAGS="$CFLAGS"
EXTRA_CFLAGS="-W -Wall"
cf_warn_CONST=""
test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
for cf_opt in \
Wbad-function-cast \
Wcast-align \
Wcast-qual \
Winline \
Wmissing-declarations \
Wmissing-prototypes \
Wnested-externs \
Wpointer-arith \
Wshadow \
Wstrict-prototypes $cf_warn_CONST
do
CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
if AC_TRY_EVAL(ac_compile); then
test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
test "$cf_opt" = Wcast-qual && EXTRA_CFLAGS="$EXTRA_CFLAGS -DXTSTRINGDEFINES"
fi
done
rm -f conftest*
CFLAGS="$cf_save_CFLAGS"
fi
AC_SUBST(EXTRA_CFLAGS)
])dnl
dnl ---------------------------------------------------------------------------
dnl Construct a search-list for a nonstandard header-file
AC_DEFUN([CF_HEADER_PATH],
[$1=""
if test -d "$includedir" ; then
test "$includedir" != NONE && $1="[$]$1 $includedir $includedir/$2"
fi
if test -d "$oldincludedir" ; then
test "$oldincludedir" != NONE && $1="[$]$1 $oldincludedir $oldincludedir/$2"
fi
if test -d "$prefix"; then
test "$prefix" != NONE && $1="[$]$1 $prefix/include $prefix/include/$2"
fi
test "$prefix" != /usr/local && $1="[$]$1 /usr/local/include /usr/local/include/$2"
test "$prefix" != /usr && $1="[$]$1 /usr/include /usr/include/$2"
])dnl
dnl ---------------------------------------------------------------------------
dnl Construct a search-list for a nonstandard library-file
AC_DEFUN([CF_LIBRARY_PATH],
[$1=""
if test -d "$libdir" ; then
test "$libdir" != NONE && $1="[$]$1 $libdir $libdir/$2"
fi
if test -d "$exec_prefix"; then
test "$exec_prefix" != NONE && $1="[$]$1 $exec_prefix/lib $exec_prefix/lib/$2"
fi
if test -d "$prefix"; then
test "$prefix" != NONE && \
test "$prefix" != "$exec_prefix" && $1="[$]$1 $prefix/lib $prefix/lib/$2"
fi
test "$prefix" != /usr/local && $1="[$]$1 /usr/local/lib /usr/local/lib/$2"
test "$prefix" != /usr && $1="[$]$1 /usr/lib /usr/lib/$2"
])dnl
dnl ---------------------------------------------------------------------------
dnl Some 'make' programs support $(MAKEFLAGS), some $(MFLAGS), to pass 'make'
dnl options to lower-levels. It's very useful for "make -n" -- if we have it.
dnl (GNU 'make' does both :-)
AC_DEFUN([CF_MAKEFLAGS],
[
AC_MSG_CHECKING([for makeflags variable])
AC_CACHE_VAL(cf_cv_makeflags,[
cf_cv_makeflags=''
for cf_option in '$(MFLAGS)' '-$(MAKEFLAGS)'
do
cat >cf_makeflags.tmp <<CF_EOF
all :
echo '.$cf_option'
CF_EOF
set cf_result=`${MAKE-make} -f cf_makeflags.tmp 2>/dev/null`
if test "$cf_result" != "."
then
cf_cv_makeflags=$cf_option
break
fi
done
rm -f cf_makeflags.tmp])
AC_MSG_RESULT($cf_cv_makeflags)
AC_SUBST(cf_cv_makeflags)
])dnl
dnl ---------------------------------------------------------------------------
dnl Write a debug message to config.log, along with the line number in the
dnl configure script.
AC_DEFUN([CF_MSG_LOG],[
echo "(line __oline__) testing $* ..." 1>&AC_FD_CC
])dnl
dnl ---------------------------------------------------------------------------
dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
dnl the CPPFLAGS variable.
dnl
dnl The header files may be installed as either curses.h, or ncurses.h
dnl (obsolete). If not installed for overwrite, the curses.h file would be
dnl in an ncurses subdirectory (e.g., /usr/include/ncurses), but someone may
dnl have installed overwriting the vendor's curses. Only very old versions
dnl (pre-1.9.2d, the first autoconf'd version) of ncurses don't define
dnl either __NCURSES_H or NCURSES_VERSION in the header.
dnl
dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
dnl is already in the include-path, don't even bother with this, since we cannot
dnl easily determine which file it is. In this case, it has to be <curses.h>.
dnl
AC_DEFUN([CF_NCURSES_CPPFLAGS],
[
AC_MSG_CHECKING(for ncurses header file)
AC_CACHE_VAL(cf_cv_ncurses_header,[
AC_TRY_COMPILE([#include <curses.h>],[
#ifdef NCURSES_VERSION
printf("%s\n", NCURSES_VERSION);
#else
#ifdef __NCURSES_H
printf("old\n");
#else
make an error
#endif
#endif
],
[cf_cv_ncurses_header=predefined],[
CF_HEADER_PATH(cf_search,ncurses)
test -n "$verbose" && echo
for cf_incdir in $cf_search
do
for cf_header in \
curses.h \
ncurses.h
do
changequote(,)dnl
if egrep "NCURSES_[VH]" $cf_incdir/$cf_header 1>&AC_FD_CC 2>&1; then
changequote([,])dnl
cf_cv_ncurses_header=$cf_incdir/$cf_header
test -n "$verbose" && echo $ac_n " ... found $ac_c" 1>&AC_FD_MSG
break
fi
test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
done
test -n "$cf_cv_ncurses_header" && break
done
test -z "$cf_cv_ncurses_header" && AC_ERROR(not found)
])])
AC_MSG_RESULT($cf_cv_ncurses_header)
AC_DEFINE(NCURSES)
changequote(,)dnl
cf_incdir=`echo $cf_cv_ncurses_header | sed -e 's:/[^/]*$::'`
changequote([,])dnl
case $cf_cv_ncurses_header in # (vi
*/ncurses.h)
AC_DEFINE(HAVE_NCURSES_H)
;;
esac
case $cf_cv_ncurses_header in # (vi
predefined) # (vi
cf_cv_ncurses_header=curses.h
;;
*)
CF_ADD_INCDIR($cf_incdir)
;;
esac
CF_NCURSES_VERSION
])dnl
dnl ---------------------------------------------------------------------------
dnl Look for the ncurses library. This is a little complicated on Linux,
dnl because it may be linked with the gpm (general purpose mouse) library.
dnl Some distributions have gpm linked with (bsd) curses, which makes it
dnl unusable with ncurses. However, we don't want to link with gpm unless
dnl ncurses has a dependency, since gpm is normally set up as a shared library,
dnl and the linker will record a dependency.
AC_DEFUN([CF_NCURSES_LIBS],
[AC_REQUIRE([CF_NCURSES_CPPFLAGS])
# This works, except for the special case where we find gpm, but
# ncurses is in a nonstandard location via $LIBS, and we really want
# to link gpm.
cf_ncurses_LIBS=""
cf_ncurses_SAVE="$LIBS"
AC_CHECK_LIB(gpm,Gpm_Open,
[AC_CHECK_LIB(gpm,initscr,
[LIBS="$cf_ncurses_SAVE"],
[cf_ncurses_LIBS="-lgpm"])])
case $host_os in #(vi
freebsd*)
# This is only necessary if you are linking against an obsolete
# version of ncurses (but it should do no harm, since it's static).
AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
;;
esac
LIBS="$cf_ncurses_LIBS $LIBS"
CF_FIND_LIBRARY(ncurses,
[#include <${cf_cv_ncurses_header-curses.h}>],
[initscr()],
initscr)
if test -n "$cf_ncurses_LIBS" ; then
AC_MSG_CHECKING(if we can link ncurses without $cf_ncurses_LIBS)
cf_ncurses_SAVE="$LIBS"
for p in $cf_ncurses_LIBS ; do
q=`echo $LIBS | sed -e 's/'$p' //' -e 's/'$p'$//'`
if test "$q" != "$LIBS" ; then
LIBS="$q"
fi
done
AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
[initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
[AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)
LIBS="$cf_ncurses_SAVE"])
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl Check for the version of ncurses, to aid in reporting bugs, etc.
AC_DEFUN([CF_NCURSES_VERSION],
[AC_MSG_CHECKING(for ncurses version)
AC_CACHE_VAL(cf_cv_ncurses_version,[
cf_cv_ncurses_version=no
cf_tempfile=out$$
AC_TRY_RUN([
#include <${cf_cv_ncurses_header-curses.h}>
int main()
{
FILE *fp = fopen("$cf_tempfile", "w");
#ifdef NCURSES_VERSION
# ifdef NCURSES_VERSION_PATCH
fprintf(fp, "%s.%d\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
# else
fprintf(fp, "%s\n", NCURSES_VERSION);
# endif
#else
# ifdef __NCURSES_H
fprintf(fp, "old\n");
# else
make an error
# endif
#endif
exit(0);
}],[
cf_cv_ncurses_version=`cat $cf_tempfile`
rm -f $cf_tempfile],,[
# This will not work if the preprocessor splits the line after the
# Autoconf token. The 'unproto' program does that.
cat > conftest.$ac_ext <<EOF
#include <${cf_cv_ncurses_header-curses.h}>
#undef Autoconf
#ifdef NCURSES_VERSION
Autoconf NCURSES_VERSION
#else
#ifdef __NCURSES_H
Autoconf "old"
#endif
;
#endif
EOF
cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
AC_TRY_EVAL(cf_try)
if test -f conftest.out ; then
changequote(,)dnl
cf_out=`cat conftest.out | sed -e 's@^Autoconf @@' -e 's@^[^"]*"@@' -e 's@".*@@'`
changequote([,])dnl
test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
rm -f conftest.out
fi
])])
AC_MSG_RESULT($cf_cv_ncurses_version)
])
dnl ---------------------------------------------------------------------------
dnl After checking for functions in the default $LIBS, make a further check
dnl for the functions that are netlib-related (these aren't always in the
dnl libc, etc., and have to be handled specially because there are conflicting
dnl and broken implementations.
dnl Common library requirements (in order):
dnl -lresolv -lsocket -lnsl
dnl -lnsl -lsocket
dnl -lsocket
dnl -lbsd
AC_DEFUN([CF_NETLIBS],[
cf_test_netlibs=no
AC_MSG_CHECKING(for network libraries)
AC_CACHE_VAL(cf_cv_netlibs,[
AC_MSG_RESULT(working...)
cf_cv_netlibs=""
cf_test_netlibs=yes
AC_CHECK_FUNCS(gethostname,,[
CF_RECHECK_FUNC(gethostname,nsl,cf_cv_netlibs,[
CF_RECHECK_FUNC(gethostname,socket,cf_cv_netlibs)])])
#
# FIXME: sequent needs this library (i.e., -lsocket -linet -lnsl), but
# I don't know the entrypoints - 97/7/22 TD
AC_HAVE_LIBRARY(inet,cf_cv_netlibs="-linet $cf_cv_netlibs")
#
if test "$ac_cv_func_lsocket" != no ; then
AC_CHECK_FUNCS(socket,,[
CF_RECHECK_FUNC(socket,socket,cf_cv_netlibs,[
CF_RECHECK_FUNC(socket,bsd,cf_cv_netlibs)])])
fi
#
AC_CHECK_FUNCS(gethostbyname,,[
CF_RECHECK_FUNC(gethostbyname,nsl,cf_cv_netlibs)])
#
AC_CHECK_FUNCS(strcasecmp,,[
CF_RECHECK_FUNC(strcasecmp,resolv,cf_cv_netlibs)])
])
LIBS="$LIBS $cf_cv_netlibs"
test $cf_test_netlibs = no && echo "$cf_cv_netlibs" >&AC_FD_MSG
])dnl
dnl ---------------------------------------------------------------------------
dnl Look for the default editor (vi)
AC_DEFUN([CF_PATH_EDITOR],
[
AC_MSG_CHECKING(for default editor)
AC_ARG_WITH(editor,
[ --with-editor=PROG specify editor (default: vi)],
[DEFAULT_EDITOR=$withval],[
if test -z "$DEFAULT_EDITOR" ; then
if test -n "$EDITOR" ; then
DEFAULT_EDITOR="$EDITOR"
elif test -n "$VISUAL" ; then
DEFAULT_EDITOR="$VISUAL"
else
AC_PATH_PROG(DEFAULT_EDITOR,vi,vi,$PATH:/usr/bin:/usr/ucb)
fi
fi
])
AC_MSG_RESULT($DEFAULT_EDITOR)
AC_DEFINE_UNQUOTED(DEFAULT_EDITOR,"$DEFAULT_EDITOR")
])dnl
dnl ---------------------------------------------------------------------------
dnl Look for the directory that contains incoming mail. I would check for an
dnl actual mail-file, to verify this, but that is not always easy to arrange.
AC_DEFUN([CF_PATH_MAILBOX],
[
AC_MSG_CHECKING(for incoming-mail directory)
AC_ARG_WITH(mailbox,
[ --with-mailbox=DIR directory for incoming mailboxes],
[DEFAULT_MAILBOX=$withval],[
if test -z "$DEFAULT_MAILBOX" ; then
for cf_dir in \
/var/spool/mail \
/usr/spool/mail \
/var/mail \
/usr/mail \
/mail
do
if test -d $cf_dir ; then
DEFAULT_MAILBOX=$cf_dir
break
fi
done
fi
])
if test -n "$DEFAULT_MAILBOX" ; then
AC_DEFINE_UNQUOTED(DEFAULT_MAILBOX,"$DEFAULT_MAILBOX")
else
DEFAULT_MAILBOX=none
fi
AC_MSG_RESULT($DEFAULT_MAILBOX)
])dnl
dnl ---------------------------------------------------------------------------
dnl Look for the program that sends outgoing mail.
AC_DEFUN([CF_PATH_MAILER],
[
AC_PATH_PROG(DEFAULT_MAILER,sendmail,,$PATH:/usr/sbin:/usr/lib)
AC_ARG_WITH(mailer,
[ --with-mailer=PROG specify default mailer-program],
[DEFAULT_MAILER=$withval],[
if test -z "$DEFAULT_MAILER" ; then
AC_PATH_PROG(DEFAULT_MAILER,mailx,,$PATH:/usr/bin)
fi
if test -z "$DEFAULT_MAILER" ; then
AC_PATH_PROG(DEFAULT_MAILER,mail,,$PATH:/usr/bin)
fi
if test -n "$DEFAULT_MAILER" ; then
AC_DEFINE_UNQUOTED(DEFAULT_MAILER,"$DEFAULT_MAILER")
else
DEFAULT_MAILER=none
fi
AC_MSG_RESULT($DEFAULT_MAILER)
])
])dnl
dnl ---------------------------------------------------------------------------
dnl See if sum can take -r
AC_DEFUN([CF_PROG_SUM_R],
[
if test $ac_cv_path_PATH_SUM
then
AC_MSG_CHECKING([if $ac_cv_path_PATH_SUM takes -r])
AC_CACHE_VAL(ac_cv_prog_sum_r,[
if AC_TRY_COMMAND($ac_cv_path_PATH_SUM -r config.log 1>&AC_FD_CC)
then
ac_cv_prog_sum_r=yes
else
ac_cv_prog_sum_r=no
fi
])
if test $ac_cv_prog_sum_r = yes; then
AC_DEFINE(SUM_TAKES_DASH_R)
AC_DEFINE_UNQUOTED(PATH_SUM_R, "$ac_cv_path_PATH_SUM -r")
else
AC_DEFINE_UNQUOTED(PATH_SUM_R, "$ac_cv_path_PATH_SUM")
fi
AC_MSG_RESULT($ac_cv_prog_sum_r)
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl A better version of AC_PROC_YACC, verifies that we'll only choose bison if
dnl we'll be able to compile with it. Bison uses alloca, which isn't all that
dnl portable.
AC_DEFUN([CF_PROG_YACC],
[
AC_REQUIRE([AC_PROG_CC])
AC_CACHE_VAL(cf_cv_prog_YACC,[
if test -n "$YACC" ; then
cf_cv_prog_YACC="$YACC" # Let the user override the test.
else
cat >conftest.y <<EOF
%{
void yyerror(s) char *s; { }
%}
%token NUMBER
%%
time : NUMBER ':' NUMBER
;
%%
int yylex() { return NUMBER; }
int main() { return yyparse(); }
EOF
for cf_prog in 'bison -y' byacc yacc
do
rm -f y.tab.[ch]
AC_MSG_CHECKING(for $cf_prog)
cf_command="$cf_prog conftest.y"
cf_result=no
if AC_TRY_EVAL(cf_command) && test -s y.tab.c ; then
mv y.tab.c conftest.c
rm -f y.tab.h
if test "$cf_prog" = 'bison -y' ; then
if AC_TRY_EVAL(ac_link) && test -s conftest ; then
cf_result=yes
fi
else
cf_result=yes
fi
fi
AC_MSG_RESULT($cf_result)
if test $cf_result = yes ; then
cf_cv_prog_YACC="$cf_prog"
break
fi
done
fi
])
YACC="$cf_cv_prog_YACC"
AC_SUBST(YACC)dnl
])dnl
dnl ---------------------------------------------------------------------------
dnl Re-check on a function to see if we can pick it up by adding a library.
dnl $1 = function to check
dnl $2 = library to check in
dnl $3 = environment to update (e.g., $LIBS)
dnl $4 = what to do if this fails
dnl
dnl This uses 'unset' if the shell happens to support it, but leaves the
dnl configuration variable set to 'unknown' if not. This is a little better
dnl than the normal autoconf test, which gives misleading results if a test
dnl for the function is made (e.g., with AC_CHECK_FUNC) after this macro is
dnl used (autoconf does not distinguish between a null token and one that is
dnl set to 'no').
AC_DEFUN([CF_RECHECK_FUNC],[
AC_CHECK_LIB($2,$1,[
CF_UPPER(cf_tr_func,$1)
AC_DEFINE_UNQUOTED(HAVE_$cf_tr_func)
ac_cv_func_$1=yes
$3="-l$2 [$]$3"],[
ac_cv_func_$1=unknown
unset ac_cv_func_$1 2>/dev/null
$4],
[[$]$3])
])dnl
dnl ---------------------------------------------------------------------------
dnl Check for the functions that set effective/real uid/gid. This has to
dnl follow the AC_CHECK_FUNCS call.
AC_DEFUN([CF_SET_GID_UID],
[
AC_MSG_CHECKING([for setuid-like functions])
AC_CACHE_VAL(cf_cv_setuid_funcs,[
if test -n "${ac_cv_func_setuid}${ac_cv_func_seteuid}${ac_cv_func_setreuid}"; then
cf_cv_setuid_funcs=yes
else
cf_cv_setuid_funcs=no
fi
])
AC_MSG_RESULT($cf_cv_setuid_funcs)
test $cf_cv_setuid_funcs = yes && AC_DEFINE(HAVE_SET_GID_UID)
])dnl
dnl ---------------------------------------------------------------------------
dnl Check for systems that have signal-handlers prototyped with one argument
dnl versus those with more than one argument, define the symbol SIG_ARGS to
dnl match. (If it's empty, that's ok too).
AC_DEFUN([CF_SIG_ARGS],
[
AC_MSG_CHECKING([declaration of signal arguments])
AC_CACHE_VAL(cf_cv_sig_args,[
cf_cv_sig_args=
for cf_test in "int sig" "int sig, ..."
do
AC_TRY_COMPILE([
#include <signal.h>],
[extern RETSIGTYPE catch($cf_test); signal(SIGINT, catch)],
[cf_cv_sig_args="$cf_test";break])
done
])
AC_MSG_RESULT($cf_cv_sig_args)
AC_DEFINE_UNQUOTED(SIG_ARGS,$cf_cv_sig_args)
])dnl
dnl ---------------------------------------------------------------------------
dnl Check for systems where the special signal constants aren't prototyped
dnl (there's a lot of them, and the compiler can generate a lot of warning
dnl messages that make it hard to pick out genuine errors).
AC_DEFUN([CF_SIG_CONST],
[
AC_REQUIRE([CF_SIG_ARGS])
AC_MSG_CHECKING([for redefinable signal constants])
AC_CACHE_VAL(cf_cv_sig_const,[
cf_cv_sig_const=no
if test -n "$cf_cv_sig_args"; then
cf_test=`echo $cf_cv_sig_args|sed -e s/sig//`
AC_TRY_RUN([
#define NEW_DFL ((RETSIGTYPE (*)($cf_test))0)
#define NEW_IGN ((RETSIGTYPE (*)($cf_test))1)
#define NEW_ERR ((RETSIGTYPE (*)($cf_test))-1)
#include <signal.h>
int main()
{
if (NEW_DFL != SIG_DFL
|| NEW_IGN != SIG_IGN
|| NEW_ERR != SIG_ERR
/* at least one system won't let me redefine these! */
#undef SIG_DFL
#undef SIG_IGN
#undef SIG_ERR
#define SIG_DFL NEW_DFL
#define SIG_IGN NEW_IGN
#define SIG_ERR NEW_ERR
|| NEW_DFL != SIG_DFL)
exit(1);
signal(SIGINT, SIG_DFL);
exit(0);
}],
[cf_cv_sig_const=yes],
[cf_cv_sig_const=no],
[cf_cv_sig_const=unknown])
fi
])
AC_MSG_RESULT($cf_cv_sig_const)
test "$cf_cv_sig_const" = yes && AC_DEFINE(DECL_SIG_CONST)
])dnl
dnl ---------------------------------------------------------------------------
dnl Check for definitions & structures needed for window size-changing
dnl FIXME: check that this works with "snake" (HP-UX 10.x)
AC_DEFUN([CF_SIZECHANGE],
[
AC_MSG_CHECKING([declaration of size-change])
AC_CACHE_VAL(cf_cv_sizechange,[
cf_cv_sizechange=unknown
cf_save_CFLAGS="$CFLAGS"
for cf_opts in "" "NEED_PTEM_H"
do
CFLAGS="$cf_save_CFLAGS"
test -n "$cf_opts" && CFLAGS="$CFLAGS -D$cf_opts"
AC_TRY_COMPILE([#include <sys/types.h>
#if HAVE_TERMIOS_H
#include <termios.h>
#else
#if HAVE_TERMIO_H
#include <termio.h>
#endif
#endif
#if NEED_PTEM_H
/* This is a workaround for SCO: they neglected to define struct winsize in
* termios.h -- it's only in termio.h and ptem.h
*/
#include <sys/stream.h>
#include <sys/ptem.h>
#endif
#if !defined(sun) || !defined(HAVE_TERMIOS_H)
#include <sys/ioctl.h>
#endif
],[
#ifdef TIOCGSIZE
struct ttysize win; /* FIXME: what system is this? */
int y = win.ts_lines;
int x = win.ts_cols;
#else
#ifdef TIOCGWINSZ
struct winsize win;
int y = win.ws_row;
int x = win.ws_col;
#else
no TIOCGSIZE or TIOCGWINSZ
#endif /* TIOCGWINSZ */
#endif /* TIOCGSIZE */
],
[cf_cv_sizechange=yes],
[cf_cv_sizechange=no])
CFLAGS="$cf_save_CFLAGS"
if test "$cf_cv_sizechange" = yes ; then
echo "size-change succeeded ($cf_opts)" >&AC_FD_CC
test -n "$cf_opts" && AC_DEFINE_UNQUOTED($cf_opts)
break
fi
done
])
AC_MSG_RESULT($cf_cv_sizechange)
test $cf_cv_sizechange != no && AC_DEFINE(HAVE_SIZECHANGE)
])dnl
dnl ---------------------------------------------------------------------------
dnl Check for socks5 configuration
AC_DEFUN([CF_SOCKS5],[
AC_MSG_CHECKING(if we can link against socks5 library)
AC_CACHE_VAL(cf_cv_lib_socks5,[
LIBS="$LIBS -lsocks5"
AC_TRY_LINK([
#define SOCKS
#include <socks.h>],[
#ifdef USE_SOCKS4_PREFIX
Rinit((char *)0);
#else
SOCKSinit((char *)0);
#endif
getpeername(0, (struct sockaddr *)0, (int *)0);],
[cf_cv_lib_socks5=yes],
[cf_cv_lib_socks5=no])
])
AC_MSG_RESULT($cf_cv_lib_socks5)
if test $cf_cv_lib_socks5 = yes ; then
AC_DEFINE(USE_SOCKS5)
else
AC_ERROR(Sorry. Cannot link against socks5 library)
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl Check for declaration of sys_nerr and sys_errlist in one of stdio.h and
dnl errno.h. Declaration of sys_errlist on BSD4.4 interferes with our
dnl declaration. Reported by Keith Bostic.
AC_DEFUN([CF_SYS_ERRLIST],
[
for cf_name in sys_nerr sys_errlist
do
CF_CHECK_ERRNO($cf_name)
done
])dnl
dnl ---------------------------------------------------------------------------
dnl Derive the system name, as a check for reusing the autoconf cache
AC_DEFUN([CF_SYS_NAME],
[
SYS_NAME=`(uname -s -r || uname -a || hostname) 2>/dev/null | sed 1q`
test -z "$SYS_NAME" && SYS_NAME=unknown
AC_DEFINE_UNQUOTED(SYS_NAME,"$SYS_NAME")
AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$SYS_NAME"])
if test ".$SYS_NAME" != ".$cf_cv_system_name" ; then
AC_MSG_RESULT("Cached system name does not agree with actual")
AC_ERROR("Please remove config.cache and try again.")
fi])
dnl ---------------------------------------------------------------------------
dnl Check if there is a conflict between <sys/select.h> and <sys/time.h>.
dnl This is known to be a problem with SCO.
AC_DEFUN([CF_SYS_SELECT_TIMEVAL],
[
AC_MSG_CHECKING(if sys/time.h conflicts with sys/select.h)
AC_CACHE_VAL(cf_cv_sys_select_timeval,[
for cf_opts in no yes
do
AC_TRY_COMPILE([
#define yes 1
#define no 0
#if $cf_opts
#define timeval fake_timeval
#endif
#include <sys/types.h>
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#undef timeval
#ifdef HAVE_SYS_SELECT_H
# include <sys/select.h>
#endif
],[struct timeval foo],
[cf_cv_sys_select_timeval=$cf_opts
break],
[cf_cv_sys_select_timeval=no])
done
])
AC_MSG_RESULT($cf_cv_sys_select_timeval)
test $cf_cv_sys_select_timeval = yes && AC_DEFINE(NEED_TIMEVAL_FIX)
])
dnl ---------------------------------------------------------------------------
dnl See if we can link with the termios functions tcsetattr/tcgetattr
AC_DEFUN([CF_TERMIOS],
[
AC_MSG_CHECKING([for nonconflicting termios.h])
AC_CACHE_VAL(cf_cv_use_termios_h,[
AC_TRY_LINK([
#ifdef HAVE_IOCTL_H
# include <ioctl.h>
#else
# ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
# endif
#endif
#if !defined(sun) || !defined(NL0)
#include <termios.h>
#endif
],[
struct termios save_tty;
(void) tcsetattr (0, TCSANOW, &save_tty);
(void) tcgetattr (0, &save_tty)],
[cf_cv_use_termios_h=yes],
[cf_cv_use_termios_h=no])
])
AC_MSG_RESULT($cf_cv_use_termios_h)
if test $cf_cv_use_termios_h = yes; then
AC_DEFINE(HAVE_TERMIOS_H)
AC_DEFINE(HAVE_TCGETATTR)
AC_DEFINE(HAVE_TCSETATTR)
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl On some systems ioctl(fd, TIOCGWINSZ, &size) will always return {0,0} until
dnl ioctl(fd, TIOCSWINSZ, &size) is called to explicitly set the size of the
dnl screen.
dnl
dnl Attempt to determine if we're on such a system by running a test-program.
dnl This won't work, of course, if the configure script is run in batch mode,
dnl since we've got to have access to the terminal.
dnl
dnl CHECK_DECL_FLAG and CHECK_DECL_HDRS must be set in configure.in
AC_DEFUN([CF_TIOCGWINSZ],
[
AC_MSG_CHECKING([for working TIOCGWINSZ])
AC_CACHE_VAL(cf_cv_use_tiocgwinsz,[
cf_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -D__CPROTO__ $CHECK_DECL_FLAG"
AC_TRY_RUN([
$CHECK_DECL_HDRS
int main()
{
int fd;
for (fd = 0; fd <= 2; fd++) { /* try in/out/err in case redirected */
#ifdef TIOCGSIZE
struct ttysize size;
if (ioctl (0, TIOCGSIZE, &size) == 0
&& size.ts_lines > 0
&& size.ts_cols > 0)
exit(0);
#else
struct winsize size;
if (ioctl(0, TIOCGWINSZ, &size) == 0
&& size.ws_row > 0
&& size.ws_col > 0)
exit(0);
#endif
}
exit(0); /* we cannot guarantee this is run interactively */
}],
[cf_cv_use_tiocgwinsz=yes],
[cf_cv_use_tiocgwinsz=no],
[cf_cv_use_tiocgwinsz=unknown])
rm -f autoconf.h
CFLAGS="$cf_save_CFLAGS"])
AC_MSG_RESULT($cf_cv_use_tiocgwinsz)
test $cf_cv_use_tiocgwinsz != yes && AC_DEFINE(DONT_HAVE_SIGWINCH)
])dnl
dnl ---------------------------------------------------------------------------
dnl Check if the tm-struct defines the '.tm_gmtoff' member (useful in decoding
dnl dates).
AC_DEFUN([CF_TM_GMTOFF],
[
AC_MSG_CHECKING([for tm.tm_gmtoff])
AC_CACHE_VAL(cf_cv_tm_gmtoff,[
AC_TRY_COMPILE([
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
],[
struct tm foo;
long bar = foo.tm_gmtoff],
[cf_cv_tm_gmtoff=yes],
[cf_cv_tm_gmtoff=no])])
AC_MSG_RESULT($cf_cv_tm_gmtoff)
test $cf_cv_tm_gmtoff = no && AC_DEFINE(DONT_HAVE_TM_GMTOFF)
])dnl
dnl ---------------------------------------------------------------------------
dnl Check for return and param type of 3rd -- OutChar() -- param of tputs().
dnl
dnl For this check, and for CF_CURSES_TERMCAP, the $CHECK_DECL_HDRS variable
dnl must point to a header file containing this (or equivalent):
dnl
dnl #ifdef NEED_CURSES_H
dnl # if HAVE_NCURSES_H
dnl # include <ncurses.h>
dnl # else
dnl # include <curses.h>
dnl # endif
dnl #endif
dnl #if HAVE_TERM_H
dnl # include <term.h>
dnl #endif
dnl #if NEED_TERMCAP_H
dnl # include <termcap.h>
dnl #endif
dnl
AC_DEFUN([CF_TYPE_OUTCHAR],
[
AC_REQUIRE([CF_CURSES_TERMCAP])
AC_MSG_CHECKING([declaration of tputs 3rd param])
AC_CACHE_VAL(cf_cv_type_outchar,[
cf_cv_type_outchar="int OutChar(int)"
cf_cv_found=no
cf_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $CHECK_DECL_FLAG"
for P in int void; do
for Q in int void; do
for R in int char; do
for S in "" const; do
AC_TRY_COMPILE([$CHECK_DECL_HDRS],
[extern $Q OutChar($R);
extern $P tputs ($S char *string, int nlines, $Q (*_f)($R));
tputs("", 1, OutChar)],
[cf_cv_type_outchar="$Q OutChar($R)"
cf_cv_found=yes
break])
done
test $cf_cv_found = yes && break
done
test $cf_cv_found = yes && break
done
test $cf_cv_found = yes && break
done
])
AC_MSG_RESULT($cf_cv_type_outchar)
case $cf_cv_type_outchar in
int*)
AC_DEFINE(OUTC_RETURN)
;;
esac
case $cf_cv_type_outchar in
*char*)
AC_DEFINE(OUTC_ARGS,char c)
;;
esac
CFLAGS="$cf_save_CFLAGS"
])dnl
dnl ---------------------------------------------------------------------------
dnl
AC_DEFUN([CF_TYPE_SIGACTION],
[
AC_MSG_CHECKING([for type sigaction_t])
AC_CACHE_VAL(cf_cv_type_sigaction,[
AC_TRY_COMPILE([
#include <signal.h>],
[sigaction_t x],
[cf_cv_type_sigaction=yes],
[cf_cv_type_sigaction=no])])
AC_MSG_RESULT($cf_cv_type_sigaction)
test $cf_cv_type_sigaction = yes && AC_DEFINE(HAVE_TYPE_SIGACTION)
])dnl
dnl ---------------------------------------------------------------------------
dnl Check to see if the BSD-style union wait is declared. Some platforms may
dnl use this, though it is deprecated in favor of the 'int' type in Posix.
dnl Some vendors provide a bogus implementation that declares union wait, but
dnl uses the 'int' type instead; we try to spot these by checking for the
dnl associated macros.
dnl
dnl Ahem. Some implementers cast the status value to an int*, as an attempt to
dnl use the macros for either union wait or int. So we do a check compile to
dnl see if the macros are defined and apply to an int.
dnl
dnl Sets: $cf_cv_type_unionwait
dnl Defines: HAVE_TYPE_UNIONWAIT
AC_DEFUN([CF_UNION_WAIT],
[
AC_REQUIRE([CF_WAIT_HEADERS])
AC_MSG_CHECKING([for union wait])
AC_CACHE_VAL(cf_cv_type_unionwait,[
AC_TRY_LINK($cf_wait_headers,
[int x;
int y = WEXITSTATUS(x);
int z = WTERMSIG(x);
wait(&x);
],
[cf_cv_type_unionwait=no
echo compiles ok w/o union wait 1>&AC_FD_CC
],[
AC_TRY_LINK($cf_wait_headers,
[union wait x;
#ifdef WEXITSTATUS
int y = WEXITSTATUS(x);
#endif
#ifdef WTERMSIG
int z = WTERMSIG(x);
#endif
wait(&x);
],
[cf_cv_type_unionwait=yes
echo compiles ok with union wait and possibly macros too 1>&AC_FD_CC
],
[cf_cv_type_unionwait=no])])])
AC_MSG_RESULT($cf_cv_type_unionwait)
test $cf_cv_type_unionwait = yes && AC_DEFINE(HAVE_TYPE_UNIONWAIT)
])dnl
dnl ---------------------------------------------------------------------------
dnl Make an uppercase version of a variable
dnl $1=uppercase($2)
AC_DEFUN([CF_UPPER],
[
changequote(,)dnl
$1=`echo $2 | tr '[a-z]' '[A-Z]'`
changequote([,])dnl
])dnl
dnl ---------------------------------------------------------------------------
dnl Build up an expression $cf_wait_headers with the header files needed to
dnl compile against the prototypes for 'wait()', 'waitpid()', etc. Assume it's
dnl Posix, which uses <sys/types.h> and <sys/wait.h>, but allow SVr4 variation
dnl with <wait.h>.
AC_DEFUN([CF_WAIT_HEADERS],
[
AC_HAVE_HEADERS(sys/wait.h)
cf_wait_headers="#include <sys/types.h>
"
if test $ac_cv_header_sys_wait_h = yes; then
cf_wait_headers="$cf_wait_headers
#include <sys/wait.h>
"
else
AC_HAVE_HEADERS(wait.h)
AC_HAVE_HEADERS(waitstatus.h)
if test $ac_cv_header_wait_h = yes; then
cf_wait_headers="$cf_wait_headers
#include <wait.h>
"
fi
if test $ac_cv_header_waitstatus_h = yes; then
cf_wait_headers="$cf_wait_headers
#include <waitstatus.h>
"
fi
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl Wrapper for AC_ARG_WITH to inherit/override an environment variable's
dnl "#define" in the compile.
AC_DEFUN([CF_WITH_DFTENV],
[AC_ARG_WITH($1,[$2 ](default: ifelse($4,,empty,$4)),,
ifelse($4,,[withval="${$3}"],[withval="${$3-$4}"]))dnl
case "$withval" in #(vi
yes|no)
echo 'configure: error: expected a value for $3' 1>&2
exit 1
;;
esac
$3="$withval"
AC_DEFINE_UNQUOTED($3,"[$]$3")dnl
])dnl
dnl ---------------------------------------------------------------------------
dnl Wrapper for AC_ARG_WITH to ensure that user supplies a pathname, not just
dnl defaulting to yes/no.
dnl
dnl $1 = option name
dnl $2 = help-text
dnl $3 = environment variable to set
dnl $4 = default value, shown in the help-message, must be a constant
dnl $5 = default value, if it's an expression & cannot be in the help-message
dnl
AC_DEFUN([CF_WITH_PATH],
[AC_ARG_WITH($1,[$2 ](default: ifelse($4,,empty,$4)),,
ifelse($4,,[withval="${$3}"],[withval="${$3-ifelse($5,,$4,$5)}"]))dnl
case ".$withval" in #(vi
./*) #(vi
;;
.\[$]{*prefix}*) #(vi
eval withval="$withval"
case ".$withval" in #(vi
.NONE/*)
withval=`echo $withval | sed -e s@NONE@$ac_default_prefix@`
;;
esac
;; #(vi
.NONE/*)
withval=`echo $withval | sed -e s@NONE@$ac_default_prefix@`
;;
*)
AC_ERROR(expected a pathname for $1)
;;
esac
eval $3="$withval"
AC_SUBST($3)dnl
])dnl
dnl ---------------------------------------------------------------------------
dnl Wrapper for AC_PATH_PROG, with command-line option.
dnl Params:
dnl $1 = program name
dnl $2 = help-string (I'd use format, but someone's disable it in autoconf)
dnl $3 = caller-supplied default if no --with option is given. If this is
dnl blank, the macro uses AC_PATH_PROG.
AC_DEFUN([CF_WITH_PROGRAM],
[dnl
changequote(<<,>>)dnl
define(<<cf_path_name>>, PATH_<<>>translit($1, [a-z], [A-Z]))dnl
define(<<cf_have_name>>, HAVE_<<>>translit($1, [a-z], [A-Z]))dnl
changequote([,])dnl
AC_ARG_WITH($1,[$2],ifelse($3,,
[case "$withval" in #(vi
yes[)]
echo 'configure: error: "--with-$1" requires value' 1>&2
exit 1
;; #(vi
no[)]
;; #(vi
*[)]
# user supplied option-value for "--with-$1=path"
AC_MSG_CHECKING(for $1)
ac_cv_path_]cf_path_name[="$withval"
AC_DEFINE(cf_have_name)dnl
AC_MSG_RESULT($withval)
;;
esac],[$3]),[
# user did not specify "--with-$1"; do automatic check
AC_PATH_PROG(cf_path_name,$1)
if test -n "$cf_path_name"; then
AC_DEFINE_UNQUOTED(cf_path_name,"$cf_path_name")dnl
AC_DEFINE(cf_have_name)dnl
fi
])dnl
undefine([cf_path_name])undefine([cf_have_name])])dnl
dnl ---------------------------------------------------------------------------
dnl Wrapper for AC_ARG_WITH to ensure that if the user supplies a value, it is
dnl not simply defaulting to yes/no. Empty strings are ok if the macro is
dnl invoked without a default value
AC_DEFUN([CF_WITH_VALUE],
[AC_ARG_WITH($1,[$2 ](default: ifelse($4,,empty,$4)),,
ifelse($4,,[withval="${$3}"],[withval="${$3-$4}"]))dnl
ifelse($4,,[test -n "$withval" && \
],[test -z "$withval" && withval=no
])dnl
case "$withval" in #(vi
yes) echo 'configure: error: expected a value for $3' 1>&2
exit 1
;; #(vi
no) withval=""
;;
esac
$3="$withval"
AC_DEFINE_UNQUOTED($3,"$withval")dnl
])dnl
|