configure.ac revision 251154
1# Process this file with autoconf to produce a configure script. 2 3# Copyright (C) 1984-2011 Mark Nudelman 4# 5# You may distribute under the terms of either the GNU General Public 6# License or the Less License, as specified in the README file. 7# 8# For more information about less, or for information on how to 9# contact the author, see the README file. 10 11# Autoconf initialization. 12AC_INIT(less, 1) 13AC_CONFIG_SRCDIR([forwback.c]) 14AC_CONFIG_HEADER([defines.h]) 15 16# Checks for programs. 17AC_PROG_CC 18AC_ISC_POSIX 19AC_PROG_GCC_TRADITIONAL 20AC_PROG_INSTALL 21 22# Checks for compilation model. 23AC_SYS_LARGEFILE 24 25# Checks for general libraries. 26AC_CHECK_LIB(tinfo, tgoto, [have_tinfo=yes], [have_tinfo=no]) 27AC_CHECK_LIB(xcurses, initscr, [have_xcurses=yes], [have_xcurses=no]) 28AC_CHECK_LIB(ncursesw, initscr, [have_ncursesw=yes], [have_ncursesw=no]) 29AC_CHECK_LIB(ncurses, initscr, [have_ncurses=yes], [have_ncurses=no]) 30AC_CHECK_LIB(curses, initscr, [have_curses=yes], [have_curses=no]) 31AC_CHECK_LIB(termcap, tgetent, [have_termcap=yes], [have_termcap=no]) 32AC_CHECK_LIB(termlib, tgetent, [have_termlib=yes], [have_termlib=no]) 33# Regular expressions (regcmp) are in -lgen on Solaris 2, (but in libc 34# at least on Solaris 10 (2.10)) and in -lintl on SCO Unix. 35AC_SEARCH_LIBS([regcmp], [gen intl PW]) 36 37# Checks for terminal libraries 38AC_MSG_CHECKING([for working terminal libraries]) 39TERMLIBS= 40 41# Check for systems where curses is broken. 42curses_broken=0 43if test x`uname -s` = "xHP-UX" >/dev/null 2>&1; then 44if test x`uname -r` = "xB.11.00" >/dev/null 2>&1; then 45 curses_broken=1 46fi 47if test x`uname -r` = "xB.11.11" >/dev/null 2>&1; then 48 curses_broken=1 49fi 50fi 51 52if test $curses_broken = 0; then 53 54# -- Try tinfo. 55if test "x$TERMLIBS" = x; then 56 if test $have_tinfo = yes; then 57 TERMLIBS="-ltinfo" 58 SAVE_LIBS=$LIBS 59 LIBS="$LIBS $TERMLIBS" 60 AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);], 61 [termok=yes], [termok=no]) 62 LIBS=$SAVE_LIBS 63 if test $termok = no; then TERMLIBS=""; fi 64 fi 65fi 66 67# -- Try xcurses. 68if test "x$TERMLIBS" = x; then 69 if test $have_xcurses = yes; then 70 TERMLIBS="-lxcurses" 71 SAVE_LIBS=$LIBS 72 LIBS="$LIBS $TERMLIBS" 73 AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);], 74 [termok=yes], [termok=no]) 75 LIBS=$SAVE_LIBS 76 if test $termok = no; then TERMLIBS=""; fi 77 fi 78fi 79 80# -- Try ncursesw. 81if test "x$TERMLIBS" = x; then 82 if test $have_ncursesw = yes; then 83 TERMLIBS="-lncursesw" 84 SAVE_LIBS=$LIBS 85 LIBS="$LIBS $TERMLIBS" 86 AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);], 87 [termok=yes], [termok=no]) 88 LIBS=$SAVE_LIBS 89 if test $termok = no; then TERMLIBS=""; fi 90 fi 91fi 92 93# -- Try ncurses. 94if test "x$TERMLIBS" = x; then 95 if test $have_ncurses = yes; then 96 TERMLIBS="-lncurses" 97 SAVE_LIBS=$LIBS 98 LIBS="$LIBS $TERMLIBS" 99 AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);], 100 [termok=yes], [termok=no]) 101 LIBS=$SAVE_LIBS 102 if test $termok = no; then TERMLIBS=""; fi 103 fi 104fi 105 106# -- Try curses. 107if test "x$TERMLIBS" = x; then 108 if test $have_curses = yes; then 109 TERMLIBS="-lcurses" 110 SAVE_LIBS=$LIBS 111 LIBS="$LIBS $TERMLIBS" 112 AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);], 113 [termok=yes], [termok=no]) 114 LIBS=$SAVE_LIBS 115 if test $termok = no; then TERMLIBS=""; fi 116 fi 117fi 118 119# -- Try curses & termcap. 120if test "x$TERMLIBS" = x; then 121 if test $have_curses = yes; then 122 if test $have_termcap = yes; then 123 TERMLIBS="-lcurses -ltermcap" 124 SAVE_LIBS=$LIBS 125 LIBS="$LIBS $TERMLIBS" 126 AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);], 127 [termok=yes], [termok=no]) 128 LIBS=$SAVE_LIBS 129 if test $termok = no; then TERMLIBS=""; fi 130 fi 131 fi 132fi 133fi 134 135# -- Try termcap. 136if test "x$TERMLIBS" = x; then 137 if test $have_termcap = yes; then 138 TERMLIBS="-ltermcap" 139 SAVE_LIBS=$LIBS 140 LIBS="$LIBS $TERMLIBS" 141 AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);], 142 [termok=yes], [termok=no]) 143 LIBS=$SAVE_LIBS 144 if test $termok = no; then TERMLIBS=""; fi 145 fi 146fi 147 148# -- Try termlib. 149if test "x$TERMLIBS" = x; then 150 if test $have_termlib = yes; then 151 TERMLIBS="-lcurses -ltermlib" 152 SAVE_LIBS=$LIBS 153 LIBS="$LIBS $TERMLIBS" 154 AC_TRY_LINK(, [tgetent(0,0); tgetflag(0); tgetnum(0); tgetstr(0,0);], 155 [termok=yes], [termok=no]) 156 LIBS=$SAVE_LIBS 157 if test $termok = no; then TERMLIBS=""; fi 158 fi 159fi 160 161if test "x$TERMLIBS" = x; then 162 AC_MSG_RESULT(Cannot find terminal libraries - configure failed) 163 exit 1 164fi 165AC_MSG_RESULT(using $TERMLIBS) 166LIBS="$LIBS $TERMLIBS" 167 168# Checks for header files. 169AC_HEADER_STDC 170AC_CHECK_HEADERS([ctype.h errno.h fcntl.h limits.h stdio.h stdlib.h string.h termcap.h termio.h termios.h time.h unistd.h values.h sys/ioctl.h sys/stream.h wctype.h]) 171 172# Checks for typedefs, structures, and compiler characteristics. 173AC_HEADER_STAT 174AC_C_CONST 175AC_TYPE_OFF_T 176AC_TYPE_SIZE_T 177AC_HEADER_TIME 178 179# Autoheader templates for symbols defined later by AC_DEFINE. 180AH_TEMPLATE([HAVE_GNU_REGEX], 181 [GNU regex library]) 182AH_TEMPLATE([HAVE_POSIX_REGCOMP], 183 [POSIX regcomp() and regex.h]) 184AH_TEMPLATE([HAVE_PCRE], 185 [PCRE (Perl-compatible regular expression) library]) 186AH_TEMPLATE([HAVE_RE_COMP], 187 [BSD re_comp()]) 188AH_TEMPLATE([HAVE_REGCMP], 189 [System V regcmp()]) 190AH_TEMPLATE([HAVE_V8_REGCOMP], 191 [Henry Spencer V8 regcomp() and regexp.h]) 192AH_TEMPLATE([NO_REGEX], 193 [pattern matching is supported, but without metacharacters.]) 194AH_TEMPLATE([HAVE_REGEXEC2], 195 []) 196AH_TEMPLATE([HAVE_VOID], 197 [Define HAVE_VOID if your compiler supports the "void" type.]) 198AH_TEMPLATE([HAVE_FLOAT], 199 [Define HAVE_FLOAT if your compiler supports the "double" type.]) 200AH_TEMPLATE([HAVE_CONST], 201 [Define HAVE_CONST if your compiler supports the "const" modifier.]) 202AH_TEMPLATE([HAVE_STAT_INO], 203 [Define HAVE_STAT_INO if your struct stat has st_ino and st_dev.]) 204AH_TEMPLATE([HAVE_TIME_T], 205 [Define HAVE_TIME_T if your system supports the "time_t" type.]) 206AH_TEMPLATE([HAVE_STRERROR], 207 [Define HAVE_STRERROR if you have the strerror() function.]) 208AH_TEMPLATE([HAVE_FILENO], 209 [Define HAVE_FILENO if you have the fileno() macro.]) 210AH_TEMPLATE([HAVE_ERRNO], 211 [Define HAVE_ERRNO if you have the errno variable.]) 212AH_TEMPLATE([MUST_DEFINE_ERRNO], 213 [Define MUST_DEFINE_ERRNO if you have errno but it is not define in errno.h.]) 214AH_TEMPLATE([HAVE_SYS_ERRLIST], 215 [Define HAVE_SYS_ERRLIST if you have the sys_errlist[] variable.]) 216AH_TEMPLATE([HAVE_OSPEED], 217 [Define HAVE_OSPEED if your termcap library has the ospeed variable.]) 218AH_TEMPLATE([MUST_DEFINE_OSPEED], 219 [Define MUST_DEFINE_OSPEED if you have ospeed but it is not defined in termcap.h.]) 220AH_TEMPLATE([HAVE_LOCALE], 221 [Define HAVE_LOCALE if you have locale.h and setlocale.]) 222AH_TEMPLATE([HAVE_TERMIOS_FUNCS], 223 [Define HAVE_TERMIOS_FUNCS if you have tcgetattr/tcsetattr.]) 224AH_TEMPLATE([HAVE_UPPER_LOWER], 225 [Define HAVE_UPPER_LOWER if you have isupper, islower, toupper, tolower.]) 226AH_TEMPLATE([HAVE_WCTYPE], 227 [Define HAVE_WCTYPE if you have iswupper, iswlower, towupper, towlower.]) 228AH_TEMPLATE([HAVE_SIGSET_T], 229 [Define HAVE_SIGSET_T you have the sigset_t type.]) 230AH_TEMPLATE([HAVE_SIGEMPTYSET], 231 [Define HAVE_SIGEMPTYSET if you have the sigemptyset macro.]) 232AH_TEMPLATE([EDIT_PGM], 233 [Define EDIT_PGM to your editor.]) 234AH_TEMPLATE([SECURE_COMPILE], 235 [Define SECURE_COMPILE=1 to build a secure version of less.]) 236 237# Checks for identifiers. 238AC_TYPE_OFF_T 239AC_MSG_CHECKING(for void) 240AC_TRY_COMPILE(, [void *foo = 0;], 241 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_VOID)], [AC_MSG_RESULT(no)]) 242AC_MSG_CHECKING(for const) 243AC_TRY_COMPILE(, [const int foo = 0;], 244 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_CONST)], [AC_MSG_RESULT(no)]) 245AC_MSG_CHECKING(for time_t) 246AC_TRY_COMPILE([#include <time.h>], [time_t t = 0;], 247 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_TIME_T)], [AC_MSG_RESULT(no)]) 248AC_MSG_CHECKING(for st_ino in struct stat) 249AC_TRY_COMPILE([#include <sys/types.h> 250#include <sys/stat.h>], 251 [struct stat s; dev_t dev = s.st_dev; ino_t ino = s.st_ino;], 252 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_STAT_INO)], [AC_MSG_RESULT(no)]) 253 254# Checks for library functions. 255AC_TYPE_SIGNAL 256AC_CHECK_FUNCS([fsync popen _setjmp sigprocmask sigsetmask snprintf stat system fchmod]) 257 258# AC_CHECK_FUNCS may not work for inline functions, so test these separately. 259AC_MSG_CHECKING(for memcpy) 260AC_TRY_LINK([ 261#if HAVE_STRING_H 262#include <string.h> 263#endif], [memcpy(0,0,0);], 264 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_MEMCPY)], [AC_MSG_RESULT(no)]) 265 266AC_MSG_CHECKING(for strchr) 267AC_TRY_LINK([ 268#if HAVE_STRING_H 269#include <string.h> 270#endif], [strchr("x",'x');], 271 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_STRCHR)], [AC_MSG_RESULT(no)]) 272 273AC_MSG_CHECKING(for strstr) 274AC_TRY_LINK([ 275#if HAVE_STRING_H 276#include <string.h> 277#endif], [strstr("x","x");], 278 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_STRSTR)], [AC_MSG_RESULT(no)]) 279 280# Some systems have termios.h but not the corresponding functions. 281AC_CHECK_FUNC(tcgetattr, AC_DEFINE(HAVE_TERMIOS_FUNCS)) 282 283AC_MSG_CHECKING(for fileno) 284AC_TRY_LINK([ 285#if HAVE_STDIO_H 286#include <stdio.h> 287#endif], [static int x; x = fileno(stdin);], 288 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_FILENO)], [AC_MSG_RESULT(no)]) 289 290AC_MSG_CHECKING(for strerror) 291AC_TRY_LINK([ 292#if HAVE_STDIO_H 293#include <stdio.h> 294#endif 295#if HAVE_STRING_H 296#include <string.h> 297#endif 298#if HAVE_ERRNO_H 299#include <errno.h> 300#endif], [static char *x; x = strerror(0);], 301 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_STRERROR)], [AC_MSG_RESULT(no)]) 302 303AC_MSG_CHECKING(for sys_errlist) 304AC_TRY_LINK(, [extern char *sys_errlist[]; static char **x; x = sys_errlist;], 305 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYS_ERRLIST)], [AC_MSG_RESULT(no)]) 306 307AC_CHECK_TYPES([sigset_t],,,[#include <signal.h>]) 308 309AC_MSG_CHECKING(for sigemptyset) 310AC_TRY_LINK([ 311#include <signal.h> 312], [sigset_t s; sigemptyset(&s);], 313 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SIGEMPTYSET)], [AC_MSG_RESULT(no)]) 314 315have_errno=no 316AC_MSG_CHECKING(for errno) 317AC_TRY_LINK([ 318#if HAVE_ERRNO_H 319#include <errno.h> 320#endif], [static int x; x = errno;], 321 [AC_MSG_RESULT(yes - in errno.h); AC_DEFINE(HAVE_ERRNO) have_errno=yes]) 322if test $have_errno = no; then 323AC_TRY_LINK([ 324#if HAVE_ERRNO_H 325#include <errno.h> 326#endif], [extern int errno; static int x; x = errno;], 327 [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO) AC_DEFINE(MUST_DEFINE_ERRNO)], 328 [AC_MSG_RESULT(no)]) 329fi 330 331AC_MSG_CHECKING(for locale) 332AC_TRY_LINK([#include <locale.h> 333#include <ctype.h> 334#include <langinfo.h>], [setlocale(LC_CTYPE,""); isprint(0); iscntrl(0);], 335 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_LOCALE)], [AC_MSG_RESULT(no)]) 336 337AC_MSG_CHECKING(for ctype functions) 338AC_TRY_LINK([ 339#if HAVE_CTYPE_H 340#include <ctype.h> 341#endif], [static int x; x = isupper(x); x = tolower(x); x = toupper(x);], 342 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_UPPER_LOWER)], [AC_MSG_RESULT(no)]) 343 344AC_MSG_CHECKING(for wctype functions) 345AC_TRY_LINK([#include <wctype.h>], [iswlower(0); iswupper(0); towlower(0); towupper(0);], 346 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_WCTYPE)], [AC_MSG_RESULT(no)]) 347 348# Checks for external variable ospeed in the termcap library. 349have_ospeed=no 350AC_MSG_CHECKING(termcap for ospeed) 351AC_TRY_LINK([ 352#include <sys/types.h> 353#if HAVE_TERMIOS_H 354#include <termios.h> 355#endif 356#if HAVE_TERMCAP_H 357#include <termcap.h> 358#endif], [ospeed = 0;], 359[AC_MSG_RESULT(yes - in termcap.h); AC_DEFINE(HAVE_OSPEED) have_ospeed=yes]) 360if test $have_ospeed = no; then 361AC_TRY_LINK(, [extern short ospeed; ospeed = 0;], 362 [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_OSPEED) AC_DEFINE(MUST_DEFINE_OSPEED)], 363 [AC_MSG_RESULT(no)]) 364fi 365 366# Compile in secure mode? 367AC_ARG_WITH(secure, 368 [ --with-secure Compile in secure mode], 369 AC_DEFINE(SECURE_COMPILE, 1), AC_DEFINE(SECURE_COMPILE, 0)) 370 371# Should we use floating point? 372AC_MSG_CHECKING(for floating point) 373AC_ARG_WITH(no-float, 374 [ --with-no-float Do not use floating point], 375 WANT_NO_FLOAT=1, WANT_NO_FLOAT=0) 376if test $WANT_NO_FLOAT = 0; then 377 AC_TRY_LINK(, [double f1 = 12.5; double f2 = f1*f1/2.5;], 378 [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_FLOAT)], [AC_MSG_RESULT(no)]) 379else 380 AC_MSG_RESULT(disabled by user) 381fi 382 383# Checks for regular expression functions. 384have_regex=no 385have_posix_regex=unknown 386supported_regex="" 387 388# Select a regular expression library. 389WANT_REGEX=auto 390AC_ARG_WITH(regex, 391 [ --with-regex={auto,gnu,pcre,posix,regcmp,re_comp,regcomp,regcomp-local,none} Select a regular expression library [auto]], 392 WANT_REGEX="$withval") 393 394if test $have_regex = no; then 395if test $WANT_REGEX = auto -o $WANT_REGEX = posix; then 396# Some versions of Solaris have a regcomp() function, but it doesn't work! 397# So we run a test program. If we're cross-compiling, do it the old way. 398AC_MSG_CHECKING(for POSIX regcomp) 399AC_TRY_RUN([ 400#include <sys/types.h> 401#include <regex.h> 402main() { regex_t r; regmatch_t rm; char *text = "xabcy"; 403if (regcomp(&r, "abc", 0)) exit(1); 404if (regexec(&r, text, 1, &rm, 0)) exit(1); 405#ifndef __WATCOMC__ 406if (rm.rm_so != 1) exit(1); /* check for correct offset */ 407#else 408if (rm.rm_sp != text + 1) exit(1); /* check for correct offset */ 409#endif 410exit(0); }], 411 have_posix_regex=yes, have_posix_regex=no, have_posix_regex=unknown) 412if test $have_posix_regex = yes; then 413 AC_MSG_RESULT(yes) 414 AC_DEFINE(HAVE_POSIX_REGCOMP) supported_regex="$supported_regex posix" 415 have_regex=yes 416elif test $have_posix_regex = unknown; then 417 AC_TRY_LINK([ 418#include <sys/types.h> 419#include <regex.h>], 420 [regex_t *r; regfree(r);], 421 AC_MSG_RESULT(yes) 422 AC_DEFINE(HAVE_POSIX_REGCOMP) have_regex=yes; supported_regex="$supported_regex posix") 423else 424 AC_MSG_RESULT(no) 425fi 426fi 427fi 428 429if test $have_regex = no; then 430if test $WANT_REGEX = auto -o $WANT_REGEX = pcre; then 431AC_CHECK_LIB(pcre, pcre_compile, 432[AC_DEFINE(HAVE_PCRE) LIBS="$LIBS -lpcre" have_regex=yes; supported_regex="$supported_regex pcre"], []) 433fi 434fi 435 436if test $have_regex = no; then 437if test $WANT_REGEX = auto -o $WANT_REGEX = gnu; then 438AC_CHECK_LIB(c, re_compile_pattern, 439[AC_DEFINE(HAVE_GNU_REGEX) have_regex=yes; supported_regex="$supported_regex gnu"], []) 440fi 441fi 442 443if test $have_regex = no; then 444if test $WANT_REGEX = auto -o $WANT_REGEX = regcmp; then 445AC_CHECK_FUNC(regcmp, 446[AC_DEFINE(HAVE_REGCMP) have_regex=yes; supported_regex="$supported_regex regcmp"],[]) 447fi 448fi 449 450if test $have_regex = no; then 451if test $WANT_REGEX = auto -o $WANT_REGEX = regcomp; then 452AC_MSG_CHECKING(for V8 regcomp) 453AC_TRY_LINK([ 454#include "regexp.h"], [regcomp("");], 455[AC_MSG_RESULT(yes); AC_DEFINE(HAVE_V8_REGCOMP) have_regex=yes; supported_regex="$supported_regex regcomp"],[AC_MSG_RESULT(no)]) 456fi 457fi 458 459if test $have_regex = no && test -f ${srcdir}/regexp.c; then 460if test $WANT_REGEX = auto -o $WANT_REGEX = regcomp-local; then 461AC_MSG_RESULT(using V8 regcomp -- local source); AC_DEFINE(HAVE_V8_REGCOMP) 462supported_regex="$supported_regex regcomp-local" 463AC_DEFINE(HAVE_REGEXEC2) REGEX_O='regexp.$(O)' AC_SUBST(REGEX_O) have_regex=yes 464fi 465fi 466 467if test $have_regex = no; then 468if test $WANT_REGEX = auto -o $WANT_REGEX = re_comp; then 469AC_MSG_CHECKING(for re_comp) 470AC_CHECK_FUNC(re_comp, 471[AC_DEFINE(HAVE_RE_COMP) have_regex=yes; supported_regex="$supported_regex re_comp"],[]) 472fi 473fi 474 475if test $have_regex = no; then 476if test $WANT_REGEX = auto -o $WANT_REGEX = none; then 477AC_MSG_RESULT(using no regex) 478else 479AC_MSG_WARN(cannot find regular expression library) 480fi 481AC_DEFINE(NO_REGEX) supported_regex="$supported_regex none" 482fi 483 484AC_MSG_RESULT(regular expression library: $supported_regex) 485 486AC_ARG_WITH(editor, 487 [ --with-editor=PROGRAM use PROGRAM as the default editor [vi]], 488 AC_DEFINE_UNQUOTED(EDIT_PGM, "$withval"), AC_DEFINE(EDIT_PGM, "vi")) 489 490AH_TOP([ 491/* Unix definition file for less. -*- C -*- 492 * 493 * This file has 3 sections: 494 * User preferences. 495 * Settings always true on Unix. 496 * Settings automatically determined by configure. 497 * 498 * * * * * * WARNING * * * * * * 499 * If you edit defines.h by hand, do "touch stamp-h" before you run make 500 * so config.status doesn't overwrite your changes. 501 */ 502 503/* User preferences. */ 504 505/* 506 * SECURE is 1 if you wish to disable a bunch of features in order to 507 * be safe to run by unprivileged users. 508 * SECURE_COMPILE is set by the --with-secure configure option. 509 */ 510#define SECURE SECURE_COMPILE 511 512/* 513 * SHELL_ESCAPE is 1 if you wish to allow shell escapes. 514 * (This is possible only if your system supplies the system() function.) 515 */ 516#define SHELL_ESCAPE (!SECURE) 517 518/* 519 * EXAMINE is 1 if you wish to allow examining files by name from within less. 520 */ 521#define EXAMINE (!SECURE) 522 523/* 524 * TAB_COMPLETE_FILENAME is 1 if you wish to allow the TAB key 525 * to complete filenames at prompts. 526 */ 527#define TAB_COMPLETE_FILENAME (!SECURE) 528 529/* 530 * CMD_HISTORY is 1 if you wish to allow keys to cycle through 531 * previous commands at prompts. 532 */ 533#define CMD_HISTORY 1 534 535/* 536 * HILITE_SEARCH is 1 if you wish to have search targets to be 537 * displayed in standout mode. 538 */ 539#define HILITE_SEARCH 1 540 541/* 542 * EDITOR is 1 if you wish to allow editor invocation (the "v" command). 543 * (This is possible only if your system supplies the system() function.) 544 * EDIT_PGM is the name of the (default) editor to be invoked. 545 */ 546#define EDITOR (!SECURE) 547 548/* 549 * TAGS is 1 if you wish to support tag files. 550 */ 551#define TAGS (!SECURE) 552 553/* 554 * USERFILE is 1 if you wish to allow a .less file to specify 555 * user-defined key bindings. 556 */ 557#define USERFILE (!SECURE) 558 559/* 560 * GLOB is 1 if you wish to have shell metacharacters expanded in filenames. 561 * This will generally work if your system provides the "popen" function 562 * and the "echo" shell command. 563 */ 564#define GLOB (!SECURE) 565 566/* 567 * PIPEC is 1 if you wish to have the "|" command 568 * which allows the user to pipe data into a shell command. 569 */ 570#define PIPEC (!SECURE) 571 572/* 573 * LOGFILE is 1 if you wish to allow the -l option (to create log files). 574 */ 575#define LOGFILE (!SECURE) 576 577/* 578 * GNU_OPTIONS is 1 if you wish to support the GNU-style command 579 * line options --help and --version. 580 */ 581#define GNU_OPTIONS 1 582 583/* 584 * ONLY_RETURN is 1 if you want RETURN to be the only input which 585 * will continue past an error message. 586 * Otherwise, any key will continue past an error message. 587 */ 588#define ONLY_RETURN 0 589 590/* 591 * LESSKEYFILE is the filename of the default lesskey output file 592 * (in the HOME directory). 593 * LESSKEYFILE_SYS is the filename of the system-wide lesskey output file. 594 * DEF_LESSKEYINFILE is the filename of the default lesskey input 595 * (in the HOME directory). 596 * LESSHISTFILE is the filename of the history file 597 * (in the HOME directory). 598 */ 599#define LESSKEYFILE ".less" 600#define LESSKEYFILE_SYS SYSDIR "/sysless" 601#define DEF_LESSKEYINFILE ".lesskey" 602#define LESSHISTFILE ".lesshst" 603 604 605/* Settings always true on Unix. */ 606 607/* 608 * Define MSDOS_COMPILER if compiling under Microsoft C. 609 */ 610#define MSDOS_COMPILER 0 611 612/* 613 * Pathname separator character. 614 */ 615#define PATHNAME_SEP "/" 616 617/* 618 * The value returned from tgetent on success. 619 * Some HP-UX systems return 0 on success. 620 */ 621#define TGETENT_OK 1 622 623/* 624 * HAVE_SYS_TYPES_H is 1 if your system has <sys/types.h>. 625 */ 626#define HAVE_SYS_TYPES_H 1 627 628/* 629 * Define if you have the <sgstat.h> header file. 630 */ 631#undef HAVE_SGSTAT_H 632 633/* 634 * HAVE_PERROR is 1 if your system has the perror() call. 635 * (Actually, if it has sys_errlist, sys_nerr and errno.) 636 */ 637#define HAVE_PERROR 1 638 639/* 640 * HAVE_TIME is 1 if your system has the time() call. 641 */ 642#define HAVE_TIME 1 643 644/* 645 * HAVE_SHELL is 1 if your system supports a SHELL command interpreter. 646 */ 647#define HAVE_SHELL 1 648 649/* 650 * Default shell metacharacters and meta-escape character. 651 */ 652#define DEF_METACHARS "; *?\t\n'\"()<>[]|&^`#\\$%=~" 653#define DEF_METAESCAPE "\\" 654 655/* 656 * HAVE_DUP is 1 if your system has the dup() call. 657 */ 658#define HAVE_DUP 1 659 660/* Define to 1 if you have the memcpy() function. */ 661#define HAVE_MEMCPY 1 662 663/* Define to 1 if you have the strchr() function. */ 664#define HAVE_STRCHR 1 665 666/* Define to 1 if you have the strstr() function. */ 667#define HAVE_STRSTR 1 668 669/* 670 * Sizes of various buffers. 671 */ 672#if 0 /* old sizes for small memory machines */ 673#define CMDBUF_SIZE 512 /* Buffer for multichar commands */ 674#define UNGOT_SIZE 100 /* Max chars to unget() */ 675#define LINEBUF_SIZE 1024 /* Max size of line in input file */ 676#define OUTBUF_SIZE 1024 /* Output buffer */ 677#define PROMPT_SIZE 200 /* Max size of prompt string */ 678#define TERMBUF_SIZE 2048 /* Termcap buffer for tgetent */ 679#define TERMSBUF_SIZE 1024 /* Buffer to hold termcap strings */ 680#define TAGLINE_SIZE 512 /* Max size of line in tags file */ 681#define TABSTOP_MAX 32 /* Max number of custom tab stops */ 682#else /* more reasonable sizes for modern machines */ 683#define CMDBUF_SIZE 2048 /* Buffer for multichar commands */ 684#define UNGOT_SIZE 200 /* Max chars to unget() */ 685#define LINEBUF_SIZE 1024 /* Initial max size of line in input file */ 686#define OUTBUF_SIZE 1024 /* Output buffer */ 687#define PROMPT_SIZE 2048 /* Max size of prompt string */ 688#define TERMBUF_SIZE 2048 /* Termcap buffer for tgetent */ 689#define TERMSBUF_SIZE 1024 /* Buffer to hold termcap strings */ 690#define TAGLINE_SIZE 1024 /* Max size of line in tags file */ 691#define TABSTOP_MAX 128 /* Max number of custom tab stops */ 692#endif 693 694/* Settings automatically determined by configure. */ 695]) 696 697AC_CONFIG_FILES([Makefile]) 698AC_OUTPUT 699