1 dnl Process this file with autoconf to produce a configure script.
3 dnl There are two types of comments in this file.
4 dnl Comments that refer to Autoconf macros begin with "dnl", and m4
5 dnl discards them. Other comments begin with "#", and they get copied
6 dnl to the configure script, hopefully making it easier to read.
8 dnl Autoconf 2.13 generates an incomplete config.h.in; see ELinks bug 936.
9 dnl Autoconf 2.61 is installed in the computer that generates our nightly
10 dnl snapshots, so we need to be compatible with that. (Also, some files
11 dnl in Autoconf 2.62 and 2.63 sources are not GPLv2 compatible.)
14 AC_CONFIG_SRCDIR([src/main/main.c])
15 AC_CONFIG_AUX_DIR(config)
21 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Package version])
22 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Package version])
23 AC_CONFIG_HEADERS(config.h)
25 AC_CHECK_PROG(ACLOCAL,[aclocal],[aclocal],[config/missing aclocal])
26 AC_CHECK_PROG(AUTOCONF,[autoconf],[autoconf],[config/missing autoconf])
27 AC_CHECK_PROG(AUTOHEADER,[autoheader],[autoheader],[config/missing autoheader])
31 for make in gnumake gmake make false; do
32 if test "x$MAKE" = x; then
33 AC_PATH_PROGS(MAKE, "$make")
39 # Cleanup if we are configuring with a previous build in the tree
40 if test -e Makefile.config; then
41 AC_MSG_CHECKING([for previous build to clean])
42 "$MAKE" -C "$builddir/src" cleanall >/dev/null 2>/dev/null
46 # ===================================================================
47 # Load feature configuration file and start logging features.
48 # ===================================================================
50 features="features.conf"
51 test -f "$srcdir/$features" && . "$srcdir/$features"
52 test -f "$builddir/$features" && . "$builddir/$features"
53 echo "Feature summary:" > features.log
55 # ===================================================================
56 # Checks for programs.
57 # ===================================================================
60 AC_CHECK_TOOL([LD], [ld])
62 AC_PATH_PROGS(AWK, "$AWK")
66 AC_PATH_PROGS(GIT, "git")
67 AC_PATH_PROGS(SPARSE, "sparse")
74 if test "x$CONFIG_DOC" != xno; then
75 AC_PATH_PROGS(PYTHON, "python")
76 if test "x$PYTHON" != "x"; then
77 EL_CONFIG(CONFIG_ASCIIDOC, [AsciiDoc])
78 EL_CONFIG(MANUAL_ASCIIDOC, [HTML (one file)])
79 EL_CONFIG(MAN_ASCIIDOC, [HTML])
82 AC_PATH_PROGS(XMLTO, "xmlto")
83 if test "x$XMLTO" != "x"; then
84 EL_CONFIG(CONFIG_XMLTO, [XmlTo])
85 EL_CONFIG(MANUAL_XMLTO, [HTML (multiple files)])
86 EL_CONFIG(MAN_XMLTO, [man (groff)])
89 AC_PATH_PROGS(JW, "jw")
90 if test "x$JW" != "x"; then
91 EL_CONFIG(CONFIG_JW, [JadeWrapper])
92 EL_CONFIG(MANUAL_JW, [PDF])
95 AC_PATH_PROGS(POD2HTML, "pod2html")
96 if test "x$POD2HTML" != "x"; then
97 EL_CONFIG(CONFIG_POD2HTML, [Pod2HTML])
100 AC_PATH_PROGS(DOXYGEN, "doxygen")
101 if test "x$DOXYGEN" != "x"; then
102 EL_CONFIG(CONFIG_DOXYGEN, [Doxygen])
103 api_srcdir="$(cd "$srcdir" && pwd)/src"
108 AC_SUBST(CONFIG_ASCIIDOC)
109 AC_SUBST(CONFIG_DOXYGEN)
110 AC_SUBST(CONFIG_POD2HTML)
111 AC_SUBST(CONFIG_XMLTO)
114 EL_CONFIG_DEPENDS(CONFIG_DOC, [CONFIG_ASCIIDOC CONFIG_XMLTO CONFIG_JW CONFIG_POD2HTML], [Documentation Tools])
115 EL_CONFIG_DEPENDS(CONFIG_MANUAL, [MANUAL_ASCIIDOC MANUAL_XMLTO MANUAL_JW], [Manual Formats])
116 EL_CONFIG_DEPENDS(CONFIG_MANPAGE, [MAN_ASCIIDOC MAN_XMLTO], [Man Page Formats])
117 EL_CONFIG_DEPENDS(CONFIG_APIDOCS, [CONFIG_DOXYGEN], [API Documentation])
119 # gcc specific options (to be continued at the bottom of configure)
120 if test "x$ac_cv_c_compiler_gnu" = "xyes"; then
121 # We want to see all warnings and live with none.
122 # We can't set up -Werror here as there may be some warnings in test
123 # suite of configure, and we don't want to fail them.
124 CFLAGS="$CFLAGS -Wall"
127 # ===================================================================
128 # Checks for special OSes.
129 # ===================================================================
131 dnl EL_CHECK_COMPILER_MACRO(define, name, flagname)
132 AC_DEFUN([EL_CHECK_COMPILER_MACROS],
134 AC_MSG_CHECKING([for $2])
137 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[#ifndef $flag
139 #endif ]])],[$1=yes],[$1=no])
140 if test "[$]$1" = yes; then
141 EL_CONFIG([$1], [$2])
149 EL_CHECK_COMPILER_MACROS(CONFIG_OS_BEOS, [BEOS], [__BEOS__])
150 AC_SUBST(CONFIG_OS_BEOS)
152 EL_CHECK_COMPILER_MACROS(CONFIG_OS_RISCOS, [RISCOS], [__riscos__])
153 AC_SUBST(CONFIG_OS_RISCOS)
155 EL_CHECK_COMPILER_MACROS(CONFIG_OS_WIN32, [WIN32], [_WIN32 __WIN32__])
156 AC_SUBST(CONFIG_OS_WIN32)
158 EL_CHECK_COMPILER_MACROS(CONFIG_OS_OS2, [EMX], [__EMX__])
159 AC_SUBST(CONFIG_OS_OS2)
160 test "$CONFIG_OS_OS2" = yes && LDFLAGS=`echo "$LDFLAGS" | sed "s/-Zexe//g"`
162 AC_MSG_CHECKING([for UNIX])
163 dnl FIXME: some depend kind of mechanism
164 if test "$CONFIG_OS_BEOS" = no && \
165 test "$CONFIG_OS_RISCOS" = no && \
166 test "$CONFIG_OS_WIN32" = no && \
167 test "$CONFIG_OS_OS2" = no; then
168 EL_CONFIG(CONFIG_OS_UNIX, [UNIX])
172 AC_MSG_RESULT($CONFIG_OS_UNIX)
173 AC_SUBST(CONFIG_OS_UNIX)
175 # ===================================================================
176 # Checks for header files.
177 # ===================================================================
184 AC_CHECK_HEADERS(wchar.h wctype.h)
185 AC_CHECK_HEADERS(fcntl.h limits.h time.h unistd.h)
186 AC_CHECK_HEADERS(sigaction.h)
187 AC_CHECK_HEADERS(arpa/inet.h)
188 AC_CHECK_HEADERS(netinet/in_systm.h netinet/in_system.h netinet/ip.h)
189 AC_CHECK_HEADERS(netdb.h netinet/in.h netinet/in6_var.h)
190 AC_CHECK_HEADERS(ifaddrs.h)
191 AC_CHECK_HEADERS(sys/cygwin.h io.h)
192 AC_CHECK_HEADERS(sys/fmutex.h)
193 AC_CHECK_HEADERS(sys/ioctl.h sys/sockio.h)
194 AC_CHECK_HEADERS(sys/resource.h)
195 AC_CHECK_HEADERS(sys/select.h)
196 AC_CHECK_HEADERS(sys/signal.h)
197 AC_CHECK_HEADERS(sys/socket.h)
198 AC_CHECK_HEADERS(sys/time.h)
199 AC_CHECK_HEADERS(sys/utsname.h)
200 AC_CHECK_HEADERS([net/if.h], [], [],
201 [[#ifdef HAVE_SYS_SOCKET_H
202 # include <sys/socket.h> /* <net/if.h> on Mac OS X 10.5.4 needs this */
205 AC_CHECK_HEADERS(stdint.h inttypes.h)
206 AC_CHECK_HEADERS(locale.h pwd.h)
207 AC_CHECK_HEADERS(termios.h)
210 AC_CHECK_HEADERS(sys/un.h,
211 [CONFIG_INTERLINK=yes
212 EL_CONFIG([CONFIG_INTERLINK], [interlinking])],
213 [CONFIG_INTERLINK=no])
214 AC_SUBST(CONFIG_INTERLINK)
216 # ===================================================================
217 # Checks for typedefs, structures, and compiler characteristics.
218 # ===================================================================
223 AC_MSG_CHECKING([[for C99-conforming inline]])
241 [AC_MSG_RESULT([[yes]])
242 AC_DEFINE([NONSTATIC_INLINE], [inline],
243 [Define as inline if the compiler lets you declare a function without inline, then define it with inline, and have that definition refer to identifiers with internal linkage. This is allowed by C99 6.7.4p6 and 6.7.4p3 together. Otherwise define as nothing.])],
244 [AC_MSG_RESULT([[no]])
245 AC_DEFINE([NONSTATIC_INLINE], [])])
246 EL_CHECK_CODE(typeof, HAVE_TYPEOF, [], [int a; typeof(a) b;])
251 EL_CHECK_TYPE(ssize_t, int)
252 EL_CHECK_SYS_TYPE(long long, HAVE_LONG_LONG, [])
253 EL_CHECK_SYS_TYPE(off_t, HAVE_OFF_T, [])
254 EL_CHECK_INT_TYPE(int32_t, HAVE_INT32_T)
255 EL_CHECK_INT_TYPE(uint32_t, HAVE_UINT32_T)
256 EL_CHECK_INT_TYPE(uint16_t, HAVE_UINT16_T)
258 AC_CHECK_SIZEOF(char, 1)
259 AC_CHECK_SIZEOF(short, 2)
260 AC_CHECK_SIZEOF(int, 4)
261 AC_CHECK_SIZEOF(long, 4)
262 test "x$HAVE_LONG_LONG" = xyes && AC_CHECK_SIZEOF(long long, 8)
263 test "x$HAVE_OFF_T" = xyes && AC_CHECK_SIZEOF(off_t, 4)
265 # Check for variadic macros
266 EL_CHECK_CODE([variadic macros], HAVE_VARIADIC_MACROS,
268 #define a(b,c...) printf(b,##c)],
269 [a("foo");a("%s","bar");a("%s%s","baz","quux");])
271 # ===================================================================
272 # Checks for library functions.
273 # ===================================================================
275 AC_PROG_GCC_TRADITIONAL
279 AC_CHECK_FUNCS(atoll gethostbyaddr herror strerror)
280 AC_CHECK_FUNCS(popen uname access chmod alarm timegm mremap)
281 AC_CHECK_FUNCS(strcasecmp strncasecmp strcasestr strstr strchr strrchr)
282 AC_CHECK_FUNCS(memmove bcopy stpcpy strdup index isdigit mempcpy memrchr)
283 AC_CHECK_FUNCS(snprintf vsnprintf asprintf vasprintf)
284 AC_CHECK_FUNCS(getifaddrs getpwnam inet_pton inet_ntop)
285 AC_CHECK_FUNCS(fflush fsync fseeko ftello sigaction)
286 AC_CHECK_FUNCS(gettimeofday clock_gettime)
287 AC_CHECK_FUNCS(setitimer, HAVE_SETITIMER=yes)
289 AC_CHECK_FUNCS([cygwin_conv_to_full_win32_path])
291 AC_CHECK_FUNCS(setenv putenv, HAVE_SETENV_OR_PUTENV=yes)
292 AC_CHECK_FUNCS(unsetenv)
293 AC_CHECK_FUNCS(getuid, HAVE_GETUID=yes)
294 AC_CHECK_FUNCS(geteuid, HAVE_GETEUID=yes)
296 AC_CHECK_FUNCS(wcwidth, HAVE_WCWIDTH=yes)
300 # These aren't probably needed now, as they are commented in links.h.
301 # I've no idea about their historical background, but I keep them here
302 # just in the case they will help later. --pasky
303 AC_CHECK_FUNCS(getpid, HAVE_GETPID=yes)
304 AC_CHECK_FUNCS(setpgid getpgid setpgrp getpgrp)
305 AC_CHECK_FUNCS(raise, HAVE_RAISE=yes)
306 AC_CHECK_FUNCS(kill, HAVE_KILL=yes)
308 AC_CHECK_FUNCS(fpathconf, HAVE_FPATHCONF=yes)
310 if test x"$HAVE_RAISE" = x; then
311 if test x"$HAVE_KILL" = x || test x"$HAVE_GETPID" = x; then
312 AC_MSG_ERROR([Unable to emulate raise()])
316 AC_CACHE_CHECK([for __va_copy],el_cv_HAVE_VA_COPY,[
317 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
318 va_list ap1,ap2;]], [[__va_copy(ap1,ap2);]])],[el_cv_HAVE_VA_COPY=yes],[el_cv_HAVE_VA_COPY=no])])
319 if test x"$el_cv_HAVE_VA_COPY" = x"yes"; then
320 EL_DEFINE(HAVE_VA_COPY, __va_copy)
323 AC_CACHE_CHECK([for sysconf(_SC_PAGE_SIZE)],el_cv_HAVE_SC_PAGE_SIZE,[
324 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h>
325 ]], [[int page_size = sysconf(_SC_PAGE_SIZE);]])],[el_cv_HAVE_SC_PAGE_SIZE=yes],[el_cv_HAVE_SC_PAGE_SIZE=no])])
326 if test x"$el_cv_HAVE_SC_PAGE_SIZE" = x"yes"; then
327 EL_DEFINE(HAVE_SC_PAGE_SIZE, _SC_PAGE_SIZE)
330 AC_CACHE_CHECK([for C99 vsnprintf],el_cv_HAVE_C99_VSNPRINTF,[
331 AC_RUN_IFELSE([AC_LANG_SOURCE([[
339 int bar(char *buf, const char *format, va_list ap)
341 return vsnprintf(buf, 0, format, ap);
344 void foo(const char *format, ...) {
348 va_start(ap, format);
349 len = bar(buf, format, ap);
351 if ((len != 6) && (len != 7)) exit(1); /* \n -> \r\n */
353 va_start(ap, format);
354 len = bar(buf, format, ap);
356 if ((len != 6) && (len != 7)) exit(1);
358 if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) exit(1);
362 main() { foo("hello\n"); }
363 ]])],[el_cv_HAVE_C99_VSNPRINTF=yes],[el_cv_HAVE_C99_VSNPRINTF=no],[el_cv_HAVE_C99_VSNPRINTF=cross])])
364 if test x"$el_cv_HAVE_C99_VSNPRINTF" = x"yes"; then
365 EL_DEFINE(HAVE_C99_VSNPRINTF, [C99 compliant vsnprintf()])
368 # OpenSSL and Lua frequently need dlopen
369 AC_CHECK_LIB(dl, dlopen)
371 # ===================================================================
372 # Checks for libraries.
373 # ===================================================================
375 AC_CHECK_FUNC(socket, cf_result=yes, cf_result=no)
376 if test "$cf_result" = no; then
377 AC_CHECK_LIB(socket, socket)
380 AC_CHECK_FUNC(setsockopt, cf_result=yes, cf_result=no)
381 if test "$cf_result" = no; then
382 AC_CHECK_LIB(socket, setsockopt)
385 AC_CHECK_FUNC(gethostbyname, cf_result=yes, cf_result=no)
386 if test "$cf_result" = no; then
387 AC_CHECK_LIB(socket, gethostbyname, cf_result=yes, cf_result=no)
388 if test "$cf_result" = no; then
389 AC_CHECK_LIB(nsl, gethostbyname)
391 test -z "`echo $LIBS | grep -- -lsocket`" && LIBS="$LIBS -lsocket"
395 # ===================================================================
396 # Checks for packaging specific options.
397 # ===================================================================
399 AC_ARG_WITH(xterm, [ --with-xterm how to invoke the X terminal emulator],
400 [ if test "$withval" != no && test "$withval" != yes; then
401 AC_DEFINE_UNQUOTED(XTERM, "$withval", [How to invoke XTerm])
404 # ===================================================================
405 # Checks for a libraries, optional even if installed.
406 # ===================================================================
408 dnl EL_CHECK_OPTIONAL_LIBRARY(define, name, header, lib, function)
409 AC_DEFUN([EL_CHECK_OPTIONAL_LIBRARY],
411 AC_MSG_CHECKING([for $2 support])
413 if test "[$]$1" != no; then
416 if test -n "$withval" && test -d "$withval"; then
417 # Be a little more careful when setting
418 # include and lib directories. This way
419 # $withval will work when includes are
420 # there but the library is in the common
421 # /usr/lib ... Does the right thing when
422 # looking for gc on Debian.
423 if test -d "$withval/include"; then
424 CFLAGS="$CFLAGS -I$withval/include"
425 CPPFLAGS="$CPPFLAGS -I$withval/include"
427 CFLAGS="$CFLAGS -I$withval"
428 CPPFLAGS="$CPPFLAGS -I$withval"
430 if test -d "$withval/lib"; then
431 LDFLAGS="$LDFLAGS -L$withval/lib"
435 AC_CHECK_HEADERS([$3], [$1=yes], [$1=no; break;])
436 if test "[$]$1" = yes; then
437 AC_CHECK_LIB([$4], [$5], [$1=yes], [$1=no])
440 if test "[$]$1" = yes; then
441 EL_CONFIG([$1], [$2])
444 if test -n "[$]WITHVAL_$1" &&
445 test "x[$]WITHVAL_$1" != xno; then
446 AC_MSG_ERROR([$2 not found])
451 AC_MSG_RESULT(disabled)
455 dnl EL_CONFIG_OPTIONAL_LIBRARY(define, name, header, lib, function, confhelp)
456 AC_DEFUN([EL_CONFIG_OPTIONAL_LIBRARY],
458 if test "x[$]$1" != xno; then $1=yes; fi
461 AC_ARG_WITH([$2], [$6], [WITHVAL_$1="[$]withval"])
462 if test "x[$]WITHVAL_$1" = xno; then $1=no; fi
463 if test "x[$]WITHVAL_$1" = xyes; then $1=yes; fi
465 EL_CHECK_OPTIONAL_LIBRARY([$1], [$2], [$3], [$4], [$5])
467 EL_LOG_CONFIG([$1], [$2], [])
470 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_GPM, gpm, gpm.h, gpm, Gpm_Open,
471 [ --without-gpm disable gpm (mouse) support])
473 # ELinks calls deflateInit2 with windowBits = MAX_WBITS | 32, to
474 # enable automatic decoding of both zlib and gzip headers. This
475 # feature was added in zlib 1.2.0.2; earlier versions return an error.
476 # The gzclearerr function was also added in zlib 1.2.0.2, so check for
477 # that, even though ELinks does not actually call gzclearerr.
478 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_GZIP, zlib, zlib.h, z, gzclearerr,
479 [ --without-zlib disable zlib support])
481 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_BZIP2, bzlib, bzlib.h, bz2, BZ2_bzReadOpen,
482 [ --without-bzlib disable bzlib support])
484 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_IDN, idn, idna.h, idn, stringprep_check_version,
485 [ --without-idn disable international domain names support])
487 if test "x${with_gc}" != xno; then
488 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_GC, gc, gc.h, gc, GC_init,
489 [ --with-gc enable Boehm's garbage collector])
492 # LZMA disabled by default, because of little usability and compilation problems
494 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_LZMA, lzma, lzma.h, lzma, lzma_code,
495 [ --with-lzma enable lzma encoding support])
497 # ===================================================================
498 # Check for GSSAPI, optional even if installed.
499 # ===================================================================
503 AC_ARG_WITH(gssapi, [ --with-gssapi enable GSSAPI support],
504 [ if test "x$withval" != xno; then enable_gssapi=yes; fi ])
506 AC_MSG_CHECKING([for GSSAPI])
508 if test "$enable_gssapi" = "yes"; then
510 GSSAPI_CFLAGS=`krb5-config --cflags gssapi`
511 GSSAPI_LIBS=`krb5-config --libs gssapi`
512 CFLAGS="$GSSAPI_CFLAGS $CFLAGS"
513 LIBS="$GSSAPI_LIBS $LIBS"
514 EL_CONFIG(CONFIG_GSSAPI, [GssApi])
519 AC_SUBST(CONFIG_GSSAPI)
521 # ===================================================================
522 # Bookmark and XBEL support
523 # ===================================================================
527 EL_ARG_ENABLE(CONFIG_BOOKMARKS, bookmarks, [Bookmarks],
528 [ --disable-bookmarks disable bookmark support])
530 # Check whether --enable-xbel or --disable-xbel was given.
531 if test "x${enable_xbel}" != xno; then
532 AC_CHECK_HEADERS(expat.h, HAVE_LIBEXPAT=yes, HAVE_LIBEXPAT=no)
534 if test "$HAVE_LIBEXPAT" = yes; then
535 AC_CHECK_LIB(expat, XML_ParserCreate, HAVE_LIBEXPAT=yes, HAVE_LIBEXPAT=no)
536 if test "$HAVE_LIBEXPAT" = yes; then
543 EL_ARG_DEPEND(CONFIG_XBEL_BOOKMARKS, xbel, [CONFIG_BOOKMARKS:yes HAVE_LIBEXPAT:yes],
545 [ --disable-xbel disable XBEL bookmark support (requires expat)])
547 if test "$CONFIG_XBEL_BOOKMARKS" != yes; then
551 # ===================================================================
552 # Checks for BSD sysmouse
553 # ===================================================================
555 HAVE_SYSMOUSE_HEADER="no"
557 # Either of these header files provides the (same) sysmouse interface
558 AC_CHECK_HEADERS(sys/consio.h machine/console.h, [HAVE_SYSMOUSE_HEADER="yes"])
560 # ===================================================================
562 # ===================================================================
564 if test "$CONFIG_OS_OS2" = yes; then
568 # ===================================================================
570 # ===================================================================
572 if test "$CONFIG_OS_WIN32" = yes; then
576 # ===================================================================
577 # Check for SpiderMonkey, optional even if installed.
578 # ===================================================================
580 # This option sets the $with_spidermonkey variable.
581 AC_ARG_WITH([spidermonkey],
582 [AS_HELP_STRING([--without-spidermonkey],
583 [disable SpiderMonkey Mozilla JavaScript engine support])])
585 # CONFIG_SPIDERMONKEY is initially blank. We change it to "yes" or "no"
586 # when we know for sure whether we're going to use SpiderMonkey or not.
587 # (features.conf is not supposed to define it.)
591 case "$with_spidermonkey" in
593 # The user specified --without-spidermonkey.
594 # That overrides the other SpiderMonkey options.
595 AC_MSG_CHECKING([for SpiderMonkey])
596 AC_MSG_RESULT([disabled])
597 CONFIG_SPIDERMONKEY="no"
602 AC_MSG_WARN([This version of ELinks does not support --with-spidermonkey=DIRECTORY.])
606 # The SpiderMonkey 1.8.5 standalone sources install mozjs185.pc,
607 # but the Debian libmozjs-dev package installs mozilla-js.pc.
608 # Check mozjs185 first, because it has the version number in the name
609 # and therefore is less likely to be a newer incompatible version.
610 # (This configure script rejects older incompatible versions
611 # but can let newer ones through.)
612 for package in mozjs185 mozilla-js; do
613 if test -n "$CONFIG_SPIDERMONKEY"; then
616 AC_MSG_CHECKING([for SpiderMonkey (1.8.5 or later) in pkg-config $package])
617 # In pkg-config 0.25, pkg-config --exists mozjs185
618 # returns 0 (success) even if mozjs185 depends on
619 # nspr, which has not been installed. However,
620 # pkg-config --cflags mozjs185 returns 1 then.
621 if pkg-config --cflags --libs $package > /dev/null 2>&AS_MESSAGE_LOG_FD; then
622 SPIDERMONKEY_LIBS="$(pkg-config --libs $package)"
623 SPIDERMONKEY_CFLAGS="$(pkg-config --cflags $package)"
624 LIBS="$SPIDERMONKEY_LIBS $LIBS_X"
625 CFLAGS="$CFLAGS_X $SPIDERMONKEY_CFLAGS"
626 CPPFLAGS="$CPPFLAGS_X $SPIDERMONKEY_CFLAGS"
629 /* mozilla-js.pc may have -DXP_UNIX or similar in Cflags.
630 * Avoid warnings about conflicting definitions. */
631 #if !defined(XP_BEOS) && !defined(XP_OS2) && !defined(XP_UNIX) && !defined(XP_WIN)
636 # error <jsapi.h> did not define JS_VERSION
637 #elif JS_VERSION < 185
640 [CONFIG_SPIDERMONKEY=yes
641 AC_MSG_RESULT([yes])],
642 [# Leave CONFIG_SPIDERMONKEY blank, to continue the search.
643 AC_MSG_RESULT([found but unusable])])
650 if test -z "$CONFIG_SPIDERMONKEY"; then
651 # Didn't find SpiderMonkey anywhere.
652 CONFIG_SPIDERMONKEY=no
655 if test "$CONFIG_SPIDERMONKEY" = "yes"; then
656 # LIBS, CFLAGS, and CPPFLAGS still include the SpiderMonkey options.
657 AC_CHECK_FUNCS([JS_ReportAllocationOverflow])
658 AC_CHECK_FUNCS([JS_SetBranchCallback])
659 AC_CHECK_FUNCS([JS_TriggerOperationCallback], [HAVE_JS_TRIGGEROPERATIONCALLBACK=yes])
660 elif test -n "$with_spidermonkey" && test "x$with_spidermonkey" != "xno"; then
661 AC_MSG_WARN([SpiderMonkey was not found even though you specified --with-spidermonkey.])
665 if test "x$CONFIG_SPIDERMONKEY" = xyes; then
666 EL_CONFIG(CONFIG_ECMASCRIPT_SMJS, [SpiderMonkey document scripting])
668 CONFIG_ECMASCRIPT_SMJS=no
671 EL_CONFIG_DEPENDS(CONFIG_ECMASCRIPT, [CONFIG_ECMASCRIPT_SMJS], [ECMAScript (JavaScript)])
672 AC_SUBST(CONFIG_ECMASCRIPT_SMJS)
674 if test "x$CONFIG_ECMASCRIPT_SMJS" = xyes &&
675 test "x$HAVE_JS_TRIGGEROPERATIONCALLBACK" = xyes &&
676 test "x$HAVE_SETITIMER" = xyes; then
677 EL_CONFIG(CONFIG_ECMASCRIPT_SMJS_HEARTBEAT, [ECMAScript heartbeat support])
679 CONFIG_ECMASCRIPT_SMJS_HEARTBEAT=no
681 AC_SUBST(CONFIG_ECMASCRIPT_SMJS_HEARTBEAT)
684 # ===================================================================
685 # Optional Spidermonkey-based ECMAScript browser scripting
686 # ===================================================================
688 AC_ARG_ENABLE(sm-scripting,
689 [ --disable-sm-scripting ECMAScript browser scripting (requires Spidermonkey)],
690 [if test "$enableval" != no; then enableval="yes"; fi
691 CONFIG_SCRIPTING_SPIDERMONKEY="$enableval";])
693 if test "x$CONFIG_SPIDERMONKEY" = xyes &&
694 test "x$CONFIG_SCRIPTING_SPIDERMONKEY" = xyes; then
695 EL_CONFIG(CONFIG_SCRIPTING_SPIDERMONKEY, [SpiderMonkey])
697 CONFIG_SCRIPTING_SPIDERMONKEY=no
700 if test "x$CONFIG_ECMASCRIPT_SMJS" = xyes ||
701 test "x$CONFIG_SCRIPTING_SPIDERMONKEY" = xyes; then
702 LIBS="$LIBS $SPIDERMONKEY_LIBS"
703 AC_SUBST(SPIDERMONKEY_LIBS)
704 AC_SUBST(SPIDERMONKEY_CFLAGS)
705 AC_SUBST(CONFIG_SPIDERMONKEY)
708 # ===================================================================
709 # Check for Guile, optional even if installed.
710 # ===================================================================
714 AC_ARG_WITH(guile, [ --with-guile enable Guile support],
715 [ if test "x$withval" != xno; then enable_guile=yes; fi ])
717 # The following is probably bad, ugly and so on. Stolen from Guile's (1.4)
718 # GUILE_FLAGS but I really don't want to require people to have Guile in order
719 # to compile CVS. Also, the macro seems to be really stupid regarding searching
720 # for Guile in $PATH etc. --pasky
722 AC_MSG_CHECKING([for Guile])
724 if test "$enable_guile" = "yes"; then
726 ## Based on the GUILE_FLAGS macro.
728 if test -d "$withval"; then
729 GUILE_PATH="$withval:$PATH"
734 AC_PATH_PROG(GUILE_CONFIG, guile-config, no, $GUILE_PATH)
736 ## First, let's just see if we can find Guile at all.
737 if test "$GUILE_CONFIG" != no; then
740 GUILE_LIBS="`guile-config link`"
741 GUILE_CFLAGS="`guile-config compile`"
742 LIBS="$GUILE_LIBS $LIBS"
743 EL_CONFIG(CONFIG_SCRIPTING_GUILE, [Guile])
744 AC_SUBST(GUILE_CFLAGS)
746 ***********************************************************************
747 The Guile support is incomplete and not so well integrated to ELinks
748 yet. That means, e.g., that you have no Guile console and there might
749 not be all the necessary hooks. Also, the Guile interface is not too
750 well tested (success stories heartily welcomed!). See
751 src/scripting/guile/README for further details and hints.
752 ***********************************************************************
755 if test -n "$withval" && test "x$withval" != xno; then
756 AC_MSG_ERROR([Guile not found])
758 AC_MSG_WARN([Guile support disabled])
765 # ===================================================================
767 # ===================================================================
770 AC_ARG_WITH(perl, [ --with-perl enable Perl support],
772 if test "$withval" = yes; then
773 # FIXME: If withval is a valid directory append it to PATH
774 # so that you can specify one of several perl installations.
780 AC_MSG_CHECKING([for Perl])
786 if test "$enable_perl" = "yes"; then
787 PERL_LIBS="`perl -MExtUtils::Embed -e ldopts`"
788 PERL_CFLAGS="`perl -MExtUtils::Embed -e ccopts`"
789 LIBS="$PERL_LIBS $LIBS"
790 CFLAGS="$PERL_CFLAGS $CFLAGS"
791 CPPFLAGS="$CPPFLAGS $PERL_CFLAGS"
792 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
796 ]], [[PerlInterpreter *my_perl = perl_alloc();]])],[cf_result=yes],[cf_result=no])
799 if test "$cf_result"; then AC_MSG_RESULT($cf_result); fi
801 AC_MSG_CHECKING([whether POPpx works without an n_a variable])
802 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
805 extern PerlInterpreter *my_perl;
806 ]], [[dSP; (void) POPpx;]])],[AC_MSG_RESULT([yes])
807 AC_DEFINE([CONFIG_PERL_POPPX_WITHOUT_N_A], [1],
808 [Define if using Perl 5.8.8 or later, where the "POPpx" macro
809 no longer needs an "n_a" variable like it did in 5.8.7])],[AC_MSG_RESULT([no])])
811 if test "$cf_result" != "yes"; then
814 EL_CONFIG(CONFIG_SCRIPTING_PERL, [Perl])
817 CPPFLAGS="$CPPFLAGS_X"
819 AC_SUBST(PERL_CFLAGS)
822 # ===================================================================
824 # ===================================================================
827 AC_ARG_WITH(python, [[ --with-python[=DIR] enable Python support]],
828 [ if test "x$withval" != xno; then enable_python=yes; fi ])
833 AC_MSG_CHECKING([for Python])
835 if test "$enable_python" = "yes"; then
838 if test -d "$withval"; then
839 PYTHON_PATH="$withval:$PATH"
844 AC_PATH_PROG(PYTHON, python, no, $PYTHON_PATH)
846 if test "$PYTHON" != no; then
849 PYTHON_CFLAGS="`$PYTHON -c 'from distutils import sysconfig; print "-I%s -I%s" % (sysconfig.get_python_inc(), sysconfig.get_python_inc(plat_specific=True))'`"
850 PYTHON_LIBS="`$PYTHON -c 'from distutils import sysconfig; var = sysconfig.get_config_var; print "%s %s %s -L%s -lpython%s" % (var("LINKFORSHARED"), var("LIBS"), var("SYSLIBS"), var("LIBPL"), var("VERSION"))'`"
851 LIBS="$PYTHON_LIBS $LIBS"
852 CPPFLAGS="$CPPFLAGS $PYTHON_CFLAGS"
853 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <Python.h>]], [[Py_Initialize();]])],[cf_result=yes],[cf_result=no])
855 if test "$cf_result" != "yes"; then
858 EL_CONFIG(CONFIG_SCRIPTING_PYTHON, [Python])
859 AC_SUBST(PYTHON_LIBS)
860 AC_SUBST(PYTHON_CFLAGS)
861 CPPFLAGS="$CPPFLAGS_X"
863 ***********************************************************************
864 The Python support is incomplete and not so well integrated to ELinks
865 yet. That means, e.g., that you have no Python console and there might
866 not be all the necessary hooks. Also, the Python interface is not too
867 well tested (success stories heartily welcomed!).
868 ***********************************************************************
872 if test -n "$withval" && test "x$withval" != xno; then
873 AC_MSG_ERROR([Python not found])
875 AC_MSG_WARN([Python support disabled])
883 # ===================================================================
884 # Check for Lua, optional even if installed.
885 # ===================================================================
887 # Do this the long way, as FreeBSD reportedly needs -L<dir> for
888 # anything other than /usr/lib, and Lua is very often in /usr/local/lib.
890 AC_ARG_WITH(lua, [ --without-lua disable Lua support],
891 [if test "$withval" = no; then disable_lua=yes; fi])
892 AC_MSG_CHECKING([for Lua])
897 if test -z "$disable_lua"; then
898 if test ! -d "$withval"; then
901 for luadir in "$withval" "" /usr /usr/local; do
902 for suffix in "" 5.1 51; do
903 if test "$cf_result" = no && ( test -f "$luadir/include/lua.h" || \
904 test -f "$luadir/include/lua$suffix/lua.h" ) ; then
905 LUA_LIBS="-L$luadir/lib -llua$suffix -lm"
906 LUA_CFLAGS="-I$luadir/include -I$luadir/include/lua$suffix"
908 LIBS="$LUA_LIBS $LIBS_X"
909 CFLAGS="$CFLAGS_X $LUA_CFLAGS"
910 CPPFLAGS="$CPPFLAGS_X $LUA_CFLAGS"
912 # Check that it is a compatible Lua version
913 AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <lauxlib.h>]
916 ], [[ lua_State *L = luaL_newstate();
918 lua_pushboolean(L, 1);
919 lua_close(L);]])],[cf_result=yes],[cf_result=no])
925 AC_MSG_RESULT($cf_result)
927 if test "$cf_result" != yes; then
930 EL_CONFIG(CONFIG_SCRIPTING_LUA, [Lua])
931 AC_CHECK_HEADERS(lauxlib.h)
934 CPPFLAGS="$CPPFLAGS_X"
939 # ===================================================================
940 # Check for TRE library
941 # ===================================================================
943 # This section only checks that --without-tre is not given and the
944 # library seems to work, and sets TRE_CFLAGS, TRE_LIBS, and
945 # tre_log. It does not define CONFIG_TRE, and always resets
946 # LIBS and CFLAGS back to their original values.
948 # After any --enable-utf-8 and --disable-utf-8 options have been
949 # handled, a separate section decides whether to actually use TRE.
951 # tre version 0.8.0 or higher is required which have the "tre_" prefix
954 AC_ARG_WITH([[tre]], [[ --without-tre disable TRE regex search support]])
955 if test "$with_tre" = no; then
956 AC_MSG_CHECKING([[for TRE]])
957 AC_MSG_RESULT([[disabled]])
958 tre_log="no (explicitly disabled)"
960 AC_MSG_CHECKING([[for TRE in pkg-config]])
961 if pkg-config tre; then
962 TRE_CFLAGS=`pkg-config --cflags tre`
963 TRE_LIBS=`pkg-config --libs tre`
964 AC_MSG_RESULT([[yes]])
966 # <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513055>
967 # "libtre-dev: /usr/lib/pkgconfig/tre.pc missing"
968 # so we look for the library even if pkg-config doesn't know about it.
971 AC_MSG_RESULT([[no, but let's try defaults]])
974 AC_MSG_CHECKING([[for TRE header and library]])
976 CFLAGS="$TRE_CFLAGS $CFLAGS"
977 LIBS="$TRE_LIBS $LIBS" # must be first, because of regfree conflict
978 AC_TRY_LINK([#include <tre/tre.h>],
981 tre_regwcomp(&re, L"zap", REG_ICASE);
982 tre_regwexec(&re, L"ELIZAPROGRAM", 1, match, 0);],
983 [AC_MSG_RESULT([[yes]])
984 tre_log="available"],
985 [AC_MSG_RESULT([[no]])
986 tre_log="no (TRE not found)"])
990 # ===================================================================
991 # Check for Ruby, optional even if installed.
992 # ===================================================================
994 EL_CONFIG_SCRIPTING_RUBY
996 # ===================================================================
997 # Setup global scripting
998 # ===================================================================
1000 EL_CONFIG_DEPENDS(CONFIG_SCRIPTING, [CONFIG_SCRIPTING_GUILE CONFIG_SCRIPTING_LUA CONFIG_SCRIPTING_PERL CONFIG_SCRIPTING_PYTHON CONFIG_SCRIPTING_RUBY CONFIG_SCRIPTING_SPIDERMONKEY], [Browser scripting])
1001 AC_SUBST(CONFIG_SCRIPTING_GUILE)
1002 AC_SUBST(CONFIG_SCRIPTING_LUA)
1003 AC_SUBST(CONFIG_SCRIPTING_PERL)
1004 AC_SUBST(CONFIG_SCRIPTING_PYTHON)
1005 AC_SUBST(CONFIG_SCRIPTING_RUBY)
1006 AC_SUBST(CONFIG_SCRIPTING_SPIDERMONKEY)
1007 AC_SUBST(CONFIG_SCRIPTING)
1010 # ===================================================================
1011 # Check for SSL support.
1012 # ===================================================================
1014 # We by default use OpenSSL, and we always prefer it. However, when GNUTLS
1015 # is enabled, we won't try to use OpenSSL anymore.
1017 # For wiping SSL hooks..
1020 chosen_ssl_library=""
1022 AC_ARG_WITH(gnutls, [[ --without-gnutls disable GNUTLS SSL support]])
1023 AC_ARG_WITH(gnutls, [[ --with-gnutls enable GNUTLS SSL support]],
1024 [case "$with_gnutls" in
1026 "yes") chosen_ssl_library="GNUTLS" ;;
1027 *) chosen_ssl_library="GNUTLS"
1028 AC_MSG_WARN([[Support for --with-gnutls=DIR has been removed.
1029 You may have to set the PKG_CONFIG_PATH environment variable instead.]]) ;;
1032 AC_ARG_WITH(openssl, [[ --without-openssl disable OpenSSL support]])
1033 AC_ARG_WITH(openssl, [[ --with-openssl[=DIR] enable OpenSSL support (default)]],
1034 [case "$with_openssl" in
1036 *) chosen_ssl_library="OpenSSL" ;;
1039 AC_ARG_WITH(nss_compat_ossl, [[ --with-nss_compat_ossl[=DIR]
1040 NSS compatibility SSL libraries/include files]],
1041 [case "$with_nss_compat_ossl" in
1043 *) chosen_ssl_library="nss_compat_ossl" ;;
1046 # ---- nss_compat_ossl
1048 if test "$with_nss_compat_ossl" = no; then
1049 # explicitly disabled
1051 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "nss_compat_ossl"; then
1052 # not used, because $chosen_ssl_library was chosen
1054 elif test -z "${with_nss_compat_ossl+set}"; then
1055 # SSL_library_init() in nss_compat_ossl 0.9.2 calls exit(1)
1056 # with no error message if there is no certificate database.
1057 # https://bugzilla.redhat.com/show_bug.cgi?id=463437
1058 # So ELinks uses nss_compat_ossl only if explicitly requested.
1062 if test "$with_nss_compat_ossl" = yes; then
1063 if pkg-config nss; then
1064 CFLAGS="$CFLAGS_X `pkg-config --cflags nss`"
1065 LIBS="$LIBS_X `pkg-config --libs nss`"
1067 with_nss_compat_ossl=no
1070 # Without pkg-config, we'll kludge in some defaults
1071 CFLAGS="$CFLAGS_X -I$with_nss_compat_ossl/include -I/usr/include/nss3 -I/usr/include/nspr4"
1072 LIBS="$LIBS_X -L$with_nss_compat_ossl/lib -lssl3 -lsmime3 -lnss3 -lplds4 -lplc4 -lnspr4 -lpthread -ldl"
1074 AC_CHECK_HEADERS(nss_compat_ossl/nss_compat_ossl.h,, [with_nss_compat_ossl=no], [#define NSS_COMPAT_OSSL_H])
1075 AC_CHECK_LIB(nss_compat_ossl, X509_free,, [with_nss_compat_ossl=no])
1077 if test "$with_nss_compat_ossl" = "no"; then
1080 LIBS="$LIBS -lnss_compat_ossl"
1081 EL_CONFIG(CONFIG_NSS_COMPAT_OSSL, [nss_compat_ossl])
1082 chosen_ssl_library="nss_compat_ossl"
1088 AC_MSG_CHECKING([for OpenSSL])
1092 if test "$with_openssl" = no; then
1093 cf_result="explicitly disabled"
1095 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "OpenSSL"; then
1096 cf_result="not used, because $chosen_ssl_library was chosen"
1100 for ssldir in "$with_openssl" "" /usr /usr/local/openssl \
1101 /usr/lib/openssl /usr/local/ssl \
1102 /usr/local/www /usr/lib/ssl /usr/local \
1103 /usr/pkg /opt /opt/openssl; do
1104 if test "$cf_result" = no; then
1105 if test -d "$ssldir"; then
1106 OPENSSL_CFLAGS="-I$ssldir/include"
1107 LIBS="-L$ssldir/lib -lssl -lcrypto $LIBS_X"
1108 CFLAGS="$CFLAGS_X $OPENSSL_CFLAGS"
1109 CPPFLAGS="$CPPFLAGS_X $OPENSSL_CFLAGS"
1110 # # FIXME: This created serious portability problems. --pasky
1111 # if test "$CC" == "gcc"; then
1112 # # I'm not sure about compatibility here. --pasky
1113 # LIBS="$LIBS -R$ssldir/lib"
1116 LIBS="-lssl -lcrypto $LIBS_X"
1118 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <openssl/ssl.h>]], [[OpenSSL_add_all_algorithms()]])],[cf_result=yes],[cf_result=no])
1119 if test "$cf_result" != yes; then
1120 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <openssl/ssl.h>]], [[SSLeay_add_ssl_algorithms()]])],[cf_result=yes],[cf_result=no])
1125 if test "$cf_result" != yes; then
1126 if test "${with_openssl-no}" != "no"; then
1127 AC_MSG_ERROR([OpenSSL not found])
1131 EL_CONFIG(CONFIG_OPENSSL, [OpenSSL])
1132 chosen_ssl_library="OpenSSL"
1135 AC_SUBST(OPENSSL_CFLAGS)
1139 AC_MSG_RESULT($cf_result)
1143 # GnuTLS 2.2.0 changed libgnutls-openssl from GPLv2+
1144 # to GPLv3+. Don't link that with the GPLv2 ELinks.
1145 # ELinks will use its internal MD5 code instead.
1146 CONFIG_GNUTLS_OPENSSL_COMPAT=no
1148 if test "$with_gnutls" = no; then
1149 AC_MSG_CHECKING([[for GNUTLS]])
1150 AC_MSG_RESULT([[explicitly disabled]])
1152 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "GNUTLS"; then
1153 AC_MSG_CHECKING([[for GNUTLS]])
1154 AC_MSG_RESULT([[not used, because $chosen_ssl_library was chosen]])
1158 AC_MSG_CHECKING([[for GNUTLS (1.2 or later) in pkg-config]])
1159 if pkg-config --atleast-version=1.2 gnutls; then
1160 GNUTLS_CFLAGS=`pkg-config --cflags gnutls`
1161 GNUTLS_LIBS=`pkg-config --libs gnutls`
1162 AC_MSG_RESULT([[yes: $GNUTLS_CFLAGS $GNUTLS_LIBS]])
1165 LIBS="$GNUTLS_LIBS $LIBS"
1166 CFLAGS="$CFLAGS $GNUTLS_CFLAGS"
1167 CPPFLAGS="$CPPFLAGS $GNUTLS_CFLAGS"
1169 # Verify if it's really usable. gnutls_session was
1170 # renamed to gnutls_session_t before GNU TLS 1.2.0
1171 # (on 2004-06-13); ELinks now requires this.
1172 AC_MSG_CHECKING([[whether GNUTLS can be linked with]])
1173 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <gnutls/gnutls.h>]],
1174 [[gnutls_session_t dummy;
1175 gnutls_check_version(NULL)]])],
1178 AC_MSG_RESULT([[$cf_result]])
1180 if test "$cf_result" = yes; then
1181 # According to gnutls/NEWS, the function was originally
1182 # added as gnutls_set_default_priority2 in GNUTLS 2.1.4
1183 # (released 2007-10-27) and then renamed to
1184 # gnutls_priority_set_direct in GNUTLS 2.1.7 (released
1186 AC_CHECK_FUNCS([gnutls_priority_set_direct])
1191 AC_MSG_RESULT([[$cf_result]])
1194 if test "$cf_result" = yes; then
1195 EL_CONFIG(CONFIG_GNUTLS, [GNUTLS])
1196 chosen_ssl_library="GNUTLS"
1198 # gcry_create_nounce is part of libgcrypt
1199 LIBGCRYPT_CFLAGS=`libgcrypt-config --cflags`
1200 LIBGCRYPT_LIBS=`libgcrypt-config --libs`
1202 LIBS="$LIBGCRYPT_LIBS $GNUTLS_LIBS $LIBS"
1203 AC_SUBST(LIBGCRYPT_CFLAGS)
1204 AC_SUBST(GNUTLS_CFLAGS)
1206 elif test "${with_gnutls-no}" != "no"; then
1207 AC_MSG_ERROR([[GNUTLS (1.2 or later) not found. ELinks no longer supports GNUTLS 1.1.]])
1213 EL_CONFIG_DEPENDS(CONFIG_SSL, [CONFIG_OPENSSL CONFIG_GNUTLS CONFIG_NSS_COMPAT_OSSL], [SSL])
1214 AC_SUBST(CONFIG_GNUTLS_OPENSSL_COMPAT)
1215 AC_SUBST(CONFIG_OPENSSL)
1216 AC_SUBST(CONFIG_GNUTLS)
1217 AC_SUBST(CONFIG_NSS_COMPAT_OSSL)
1221 AC_MSG_CHECKING([whether to be or not to be])
1222 AC_MSG_RESULT([needs to be determined experimentally])
1224 # ===================================================================
1225 # Check for IPv6 support and related functions.
1226 # ===================================================================
1228 EL_CHECK_NET_TYPE(struct sockaddr_storage, HAVE_SA_STORAGE, [])
1229 EL_CHECK_NET_TYPE(struct sockaddr_in6, HAVE_SA_IN6, [#include <netinet/in.h>])
1230 EL_CHECK_NET_TYPE(struct addrinfo, HAVE_ADDRINFO, [#include <netdb.h>])
1232 AC_CHECK_FUNC(getaddrinfo, HAVE_GETADDRINFO=yes, HAVE_GETADDRINFO=no)
1233 if test "$HAVE_GETADDRINFO" != yes; then
1234 AC_CHECK_LIB(inet6, getaddrinfo, HAVE_GETADDRINFO=yes, HAVE_GETADDRINFO=no)
1235 if test "$HAVE_GETADDRINFO" = yes; then
1236 LIBS="$LIBS -linet6"
1241 # ===================================================================
1242 # Checking for X11 (window title restoring).
1243 # ===================================================================
1246 if test x"$no_x" != xyes; then
1248 if test -n "$x_includes"; then
1249 X_CFLAGS="-I$x_includes"
1250 CPPFLAGS="$CPPLAGS $X_CFLAGS"
1251 CFLAGS="$CFLAGS $X_CFLAGS"
1253 if test -n "$x_libraries"; then
1254 LDFLAGS="$LDFLAGS -L$x_libraries"
1257 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]], [[XrmInitialize()]])],[cf_result=yes],[cf_result=no])
1259 if test "$cf_result" = yes; then
1260 if test -n "$x_libraries"; then
1261 LDFLAGS="$LDFLAGS -L$x_libraries"
1264 EL_DEFINE(HAVE_X11, [X11 for restoring window titles])
1270 # ===================================================================
1271 # Backtraces displaying support.
1272 # ===================================================================
1274 AC_CHECK_HEADERS(execinfo.h, HAVE_EXECINFO=yes, HAVE_EXECINFO=no)
1275 # possible checks for other system-specific means go here
1278 # ===================================================================
1279 # Gettext grey zone. Beware.
1280 # ===================================================================
1282 ALL_LINGUAS="af be bg ca cs da de el es et fi fr gl hr hu id is it lt nl nb pl pt pt_BR ro ru sk sr sv tr uk"
1286 # iconv is always used
1287 LIBS="$LIBS $LIBICONV"
1289 dnl AC_MSG_CHECKING([how many characters your English alphabet has])
1290 dnl # f33r d4 l33t... I hope it's portable. :)
1291 dnl cf_result=$((48#z - 48#a + 1));
1292 dnl AC_MSG_RESULT($cf_result)
1295 # ===================================================================
1296 # Compile-time features control
1297 # ===================================================================
1299 EL_ARG_ENABLE(CONFIG_COOKIES, cookies, [Cookies],
1300 [ --disable-cookies disable cookie support])
1302 EL_ARG_ENABLE(CONFIG_FORMHIST, formhist, [Form history],
1303 [ --disable-formhist disable form history support])
1305 EL_ARG_ENABLE(CONFIG_GLOBHIST, globhist, [Global history],
1306 [ --disable-globhist disable global history support])
1309 EL_ARG_ENABLE(CONFIG_MAILCAP, mailcap, [Mailcap],
1310 [ --disable-mailcap disable mailcap support])
1312 EL_ARG_ENABLE(CONFIG_MIMETYPES, mimetypes, [Mimetypes files],
1313 [ --disable-mimetypes disable mimetypes files support])
1316 EL_ARG_DEPEND(CONFIG_IPV6, ipv6,
1317 [HAVE_SA_STORAGE:yes HAVE_SA_IN6:yes HAVE_ADDRINFO:yes HAVE_GETADDRINFO:yes],
1319 [ --disable-ipv6 disable IPv6 support])
1321 EL_ARG_ENABLE(CONFIG_BITTORRENT, bittorrent, [BitTorrent protocol],
1322 [ --enable-bittorrent enable BitTorrent protocol support])
1324 EL_ARG_ENABLE(CONFIG_DATA, data, [Data protocol],
1325 [ --disable-data disable data protocol support])
1327 EL_ARG_ENABLE(CONFIG_URI_REWRITE, uri-rewrite, [URI rewriting],
1328 [ --disable-uri-rewrite disable URI rewrite support])
1330 EL_ARG_DEPEND(CONFIG_CGI, cgi, [HAVE_SETENV_OR_PUTENV:yes], [Local CGI],
1331 [ --enable-cgi enable local CGI support])
1333 EL_ARG_ENABLE(CONFIG_FINGER, finger, [Finger protocol],
1334 [ --enable-finger enable finger protocol support])
1336 # ===================================================================
1338 # ===================================================================
1341 if test "x${enable_fsp}" != xno; then
1342 AC_CHECK_HEADERS(fsplib.h, HAVE_FSPLIB=yes, HAVE_FSPLIB=no)
1344 if test "$HAVE_FSPLIB" = yes; then
1345 AC_CHECK_LIB(fsplib, fsp_open_session, HAVE_FSPLIB=yes, HAVE_FSPLIB=no)
1346 if test "$HAVE_FSPLIB" = yes; then
1347 LIBS="$LIBS -lfsplib"
1349 AC_CHECK_LIB(fsp, fsp_open_session, HAVE_FSPLIB=yes, HAVE_FSPLIB=no)
1350 if test "$HAVE_FSPLIB" = yes; then
1357 EL_ARG_DEPEND(CONFIG_FSP, fsp, [HAVE_FSPLIB:yes], [FSP protocol],
1358 [ --enable-fsp enable FSP protocol support])
1360 if test "x$CONFIG_FSP" = xno; then
1364 EL_ARG_ENABLE(CONFIG_FTP, ftp, [FTP protocol],
1365 [ --disable-ftp disable ftp protocol support])
1367 EL_ARG_ENABLE(CONFIG_GOPHER, gopher, [Gopher protocol],
1368 [ --enable-gopher enable gopher protocol support])
1370 EL_ARG_ENABLE(CONFIG_NNTP, nntp, [NNTP protocol],
1371 [ --enable-nntp enable nntp protocol support])
1373 # ===================================================================
1374 # SMB protocol support.
1375 # ===================================================================
1378 if test "x${enable_smb}" != xno; then
1379 AC_CHECK_HEADERS(libsmbclient.h, HAVE_SMBCLIENT=yes, HAVE_SMBCLIENT=no)
1381 if test "$HAVE_SMBCLIENT" = yes; then
1382 AC_CHECK_LIB(smbclient, smbc_init, HAVE_SMBCLIENT=yes, HAVE_SMBCLIENT=no)
1383 if test "$HAVE_SMBCLIENT" = yes; then
1384 LIBS="$LIBS -lsmbclient"
1389 EL_ARG_DEPEND(CONFIG_SMB, smb, [HAVE_SMBCLIENT:yes], [Samba protocol],
1390 [ --enable-smb enable Samba protocol support])
1392 if test "x$CONFIG_SMB" = xno; then
1397 EL_ARG_ENABLE(CONFIG_MOUSE, mouse, [Mouse handling],
1398 [ --disable-mouse disable mouse support])
1400 # GPM mouse is Linux specific, so ...
1402 EL_ARG_DEPEND(CONFIG_SYSMOUSE, sysmouse,
1403 [CONFIG_MOUSE:yes CONFIG_GPM:no HAVE_SYSMOUSE_HEADER:yes],
1405 [ --disable-sysmouse disable BSD sysmouse support])
1407 EL_ARG_ENABLE(CONFIG_88_COLORS, 88-colors, [88 colors],
1408 [ --enable-88-colors enable 88 color support])
1410 EL_ARG_ENABLE(CONFIG_256_COLORS, 256-colors, [256 colors],
1411 [ --enable-256-colors enable 256 color support])
1413 EL_ARG_ENABLE(CONFIG_TRUE_COLOR, true-color, [true color],
1414 [ --enable-true-color enable true color support])
1416 EL_ARG_ENABLE(CONFIG_EXMODE, exmode, [Exmode interface],
1417 [ --enable-exmode enable exmode (CLI) interface])
1419 EL_ARG_ENABLE(CONFIG_LEDS, leds, [LEDs],
1420 [ --disable-leds disable LEDs support])
1422 EL_ARG_ENABLE(CONFIG_MARKS, marks, [Marks],
1423 [ --disable-marks disable document marks support])
1426 EL_ARG_ENABLE(CONFIG_CSS, css, [Cascading Style Sheets],
1427 [ --disable-css disable Cascading Style Sheet support])
1429 EL_ARG_DEPEND(CONFIG_HTML_HIGHLIGHT, html-highlight, [CONFIG_CSS:yes], [HTML highlighting],
1430 [ --enable-html-highlight HTML highlighting using DOM engine])
1432 # Everything in the tree already uses CONFIG_DOM
1433 # so resolve CONFIG_HTML_HIGHLIGHT to CONFIG_DOM
1434 EL_CONFIG_DEPENDS(CONFIG_DOM, [CONFIG_HTML_HIGHLIGHT], [DOM engine])
1436 EL_ARG_DEPEND(CONFIG_BACKTRACE, backtrace, [HAVE_EXECINFO:yes], [Backtrace],
1437 [ --disable-backtrace disable backtrace support])
1439 EL_ARG_DEPEND(CONFIG_NO_ROOT_EXEC, no-root, [HAVE_GETUID:yes HAVE_GETEUID:yes], [No root exec],
1440 [ --enable-no-root enable prevention of usage by root])
1443 EL_ARG_ENABLE(CONFIG_DEBUG, debug, [Debug mode],
1444 [ --enable-debug enable leak debug and internal error checking])
1446 EL_ARG_DEPEND(CONFIG_FASTMEM, fastmem, [CONFIG_DEBUG:no], [Fast mode],
1447 [ --enable-fastmem enable direct use of system allocation functions, not usable with --enable-debug])
1449 EL_ARG_ENABLE(CONFIG_OWN_LIBC, own-libc, [Own libc stubs],
1450 [ --enable-own-libc force use of internal functions instead of those of system libc])
1452 EL_ARG_ENABLE(CONFIG_SMALL, small, [Small binary],
1453 [ --enable-small reduce binary size as far as possible (but see the bottom of doc/small.txt!)])
1455 EL_ARG_ENABLE(CONFIG_UTF8, utf-8, [UTF-8],
1456 [ --disable-utf-8 disable UTF-8 support])
1458 EL_ARG_DEPEND(CONFIG_COMBINE, combining, [CONFIG_UTF8:yes HAVE_WCWIDTH:yes], [Combining characters],
1459 [ --enable-combining support Unicode combining characters (experimental)])
1462 AC_ARG_ENABLE(weehoofooboomookerchoo,
1464 Also check out the features.conf file for more information about features!
1466 [AC_MSG_ERROR(Are you strange, or what?)])
1469 # ===================================================================
1470 # Decide whether to use TRE
1471 # ===================================================================
1473 # This must be done after the CONFIG_UTF8 check above.
1474 # The first part of the TRE check is separate, to get
1475 # the configure --help output in a sensible order.
1477 # After this section, nothing else must be added to the
1478 # beginning of $LIBS.
1480 if test "$tre_log" = "available"; then
1481 if test "$CONFIG_UTF8" = "yes"; then
1482 # When CONFIG_UTF8 and CONFIG_TRE are both defined,
1483 # src/viewer/text/search.c makes a string of
1484 # unicode_val_T and gives it to regwexec(), which
1485 # expects a string of wchar_t. If the unicode_val_T
1486 # and wchar_t types are too different, this won't
1487 # work, so try to detect that and disable regexp
1488 # operations entirely in that case.
1490 # Currently, this code only compares the sizes of the
1491 # types. src/intl/charsets.h defines unicode_val_T as
1492 # uint32_t, so we check whether wchar_t has exactly 32
1493 # bits. But don't use AC_CHECK_SIZEOF for this, because
1494 # there doesn't seem to be a documented way to get the
1495 # result of that for use in the configure script.
1497 # C99 says the implementation can define
1498 # __STDC_ISO_10646__ if wchar_t values match ISO 10646
1499 # (or Unicode) numbers in all locales. Do not check
1500 # that macro here, because it is too restrictive: it
1501 # should be enough for ELinks if the values match in
1502 # the locales where ELinks is actually run.
1503 AC_MSG_CHECKING([[whether wchar_t is exactly 32-bit]])
1504 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1507 int dummy[(sizeof(wchar_t) * CHAR_BIT == 32) ? 1 : -1];]], [])],
1508 [AC_MSG_RESULT([[yes]])
1510 [AC_MSG_RESULT([[no]])
1511 tre_log="no (unsuitable wchar_t)"])
1513 # If UTF-8 is not used, then wchar_t doesn't matter.
1518 if test "$tre_log" = "TRE"; then
1519 AC_DEFINE([CONFIG_TRE], [1],
1520 [Define as 1 to use the TRE library for regular expression searching. This requires the <tre/regex.h> header file. If you define CONFIG_UTF8 too, then wchar_t must be exactly 32-bit so that it matches unicode_val_T.])
1521 # TRE_CFLAGS will be used only where needed.
1523 # Bug 1081: If both TRE and libc define the regfree function,
1524 # ELinks needs to use the version defined by TRE because
1525 # that's the one compatible with regex_t initialized by the
1526 # regwcomp function of TRE. Therefore put $TRE_LIBS at the
1527 # very beginning of $LIBS so that the linker hopefully finds
1528 # regfree there before it examines libc. In particular,
1529 # $PERL_LIBS appears to often include "-lc".
1531 # This scheme still risks a crash if ELinks is linked with
1532 # some static library that uses GNU <regex.h> extensions that
1533 # TRE does not implement. For example, the library might call
1534 # re_compile_pattern, which is found in GNU libc, and then
1535 # regfree, which is found in TRE and probably crashes with the
1536 # GNU-initialized regex_t. Ways to avoid such crashes:
1538 # - Change TRE so it defines only tre_... functions and does
1539 # not attempt to override the POSIX names by default.
1541 # - Change ELinks to access TRE only via dlopen and dlsym.
1542 # The problem then is how to find the correct file name.
1543 # There might be libtre.so.4 and libtre.so.5 with different
1544 # ABI. How can this configure script detect which of them
1545 # matches the <tre/regex.h> in the include path?
1547 # - Replace the static library with a shared library. At
1548 # least on GNU/Linux, when the shared library is built, the
1549 # linker should note that e.g. regfree is defined in libc
1550 # and has the GLIBC_2.0 version there, and write that
1551 # version string to the shared library as well; because TRE
1552 # does not provide regfree with that version, any regfree
1553 # calls at run time should then get resolved to libc.
1554 LIBS="$TRE_LIBS $LIBS"
1559 AC_SUBST(TRE_CFLAGS)
1561 EL_LOG_CONFIG([CONFIG_TRE], [[Regexp searching]], [[$tre_log]])
1564 # ===================================================================
1565 # Further LDFLAGS tweaks
1566 # ===================================================================
1570 test "$CONFIG_OS_OS2" = yes && LDFLAGS="$LDFLAGS -Zexe"
1571 test "$CONFIG_OS_OS2" = yes && LDFLAGS=`echo "$LDFLAGS" | sed "s/-Zbin-files//g"`
1574 # Check for -rdynamic
1576 # gcc -rdynamic calls ld -export-dynamic, which adds all symbols of
1577 # the executable to its dynamic symbol table. ELinks uses this for
1580 # 1. If ELinks detects a bug, it can try to display a backtrace by
1581 # calling backtrace_symbols_fd() in the GNU libc. The glibc-2.3.6
1582 # manual states users of GNU ld must pass -rdynamic to make the
1583 # symbols available to the program.
1585 # 2. It would eventually be nice to dynamically load shared
1586 # libraries as plugins (bug 73). The plugins must be able to
1587 # call ELinks functions. This can be implemented either by
1588 # registering all callable functions in ELinks-specific data
1589 # structures, or by letting the dynamic linker handle them.
1590 # The latter way requires something equivalent to -rdynamic.
1592 # Because backtraces are not needed for correct operation, and bug
1593 # 73 is not yet being fixed, the configure script and makefiles
1594 # should not complain to the user if they find that -rdynamic does
1595 # not work. Besides, it was reported at elinks-users on 2006-09-12
1596 # that gcc-3.4.2 with "ld: Software Generation Utilities - Solaris
1597 # Link Editors: 5.8-1.284" on Sun Solaris 8 Sparc does not support
1598 # -rdynamic but does something equivalent automatically. (This was
1599 # tested with "nm -D elinks | grep redraw_from_window".)
1601 # With Sun Studio 11 on Solaris 9, we get "cc: Warning: illegal option
1602 # -dynamic"; then, cc proceeds anyway, but the option can prevent the
1603 # linker from finding the libraries listed in -l operands. So this
1604 # -rdynamic check needs to happen after the libraries have already
1605 # been added to $LDFLAGS.
1606 AC_MSG_CHECKING([for -rdynamic])
1607 LDFLAGS_X="$LDFLAGS"
1608 LDFLAGS="-rdynamic $LDFLAGS"
1609 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[have_rdynamic=yes],[have_rdynamic=no])
1610 test "$have_rdynamic" = no && LDFLAGS="$LDFLAGS_X"
1611 AC_MSG_RESULT($have_rdynamic)
1613 # ===================================================================
1614 # Export directory paths
1615 # ===================================================================
1617 # Set up the ``entry points'' if they were not supplied by builder
1618 test "x$prefix" = xNONE && prefix=$ac_default_prefix
1619 test "x$exec_prefix" = xNONE && exec_prefix=${prefix}
1621 # Create CONFDIR #define for config.h
1623 # XXX: This may be dependent on a particular version of autoconf. Whatever,
1624 # it's autoconf fault to force us to do such hacks ;p.
1625 if test x"$sysconfdir" = x"\${prefix}/etc"; then
1626 # sysconfdir is set to its default value... fine, let's append /elinks/
1627 # XXX: We can't modify listing of the default in ./configure --help :-(
1628 sysconfdir_n=`eval echo "$sysconfdir"`
1629 sysconfdir=$sysconfdir_n
1630 (echo "$sysconfdir" | grep elinks >/dev/null 2>/dev/null) || \
1631 sysconfdir="$sysconfdir/elinks"
1635 AC_DEFINE_UNQUOTED(CONFDIR, "$CONFDIR", [Directory containing default config])
1638 # Create LOCALEDIR #define for config.h
1639 LOCALEDIR=`eval echo "$datadir/locale"`
1640 while echo "$LOCALEDIR" | grep "\\$"
1642 LOCALEDIR=`eval echo "$LOCALEDIR"`
1643 done > /dev/null 2> /dev/null
1644 AC_DEFINE_UNQUOTED(LOCALEDIR, "$LOCALEDIR", [Directory containing locales])
1647 # Create LIBDIR #define for config.h
1648 LIBDIR=`eval echo "$libdir"`
1649 AC_DEFINE_UNQUOTED(LIBDIR, "$LIBDIR", [Directory containing libraries])
1652 EL_LOG_CONFIG(CONFDIR, [System configuration directory], [])
1653 EL_LOG_CONFIG(LOCALEDIR, [Locale catalogs directory], [])
1656 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stddef.h>
1657 ]], [[#if !defined(__TINYC__) || !defined(alloca)
1659 #endif ]])],[cf_result=yes],[cf_result=no])
1661 if test "$cf_result" = "yes"; then
1662 AC_DEFINE([HAVE_ALLOCA])
1663 AC_DEFINE([_ALLOCA_H], [1], [Define as 1 if you are using Tiny C Compiler
1664 with the GNU C Library, and <alloca.h> of glibc would otherwise
1665 override the alloca macro defined in <stddef.h> of TCC.
1666 If <alloca.h> of glibc sees the _ALLOCA_H macro, it assumes
1667 it has already been included, and does not redefine alloca.
1668 This might not work in future glibc versions though, because
1669 the names of the #include guard macros are not documented.
1670 The incompatibility has been reported to the tinycc-devel
1671 mailing list on 2008-07-14. If a future version of TCC provides
1672 an <alloca.h> of its own, this hack won't be needed.])
1674 # ===================================================================
1675 # A little fine tuning of gcc specific options (continued)
1676 # ===================================================================
1679 if test "x$ac_cv_c_compiler_gnu" = "xyes"; then
1680 if test "$CONFIG_DEBUG" = "yes"; then
1681 # We want to see all warnings and live with none (in debug mode).
1682 CFLAGS="$CFLAGS -Werror"
1684 GETTEXT_CFLAGS="-Wno-uninitialized"
1686 case "`$CC -dumpversion`" in
1688 # These should be ok using -Werror
1691 # If gcc is version 3.3 (or higher?) it emits lots of false positive
1692 # "dereferencing type-punned pointer will break strict-aliasing rules"
1693 # warnings. Disable them by not doing any strict-aliasing. The
1694 # alternative is just too ugly. Thanks gcc guys!! ;)
1695 CFLAGS="$CFLAGS -fno-strict-aliasing"
1698 CFLAGS="$CFLAGS -fno-strict-aliasing -Wno-pointer-sign -Wno-enum-compare"
1701 # Do not show warnings related to (char * | unsigned char *) type
1703 CFLAGS="$CFLAGS -fno-strict-aliasing -Wno-pointer-sign"
1706 # These should be ok using -Werror
1710 # GCC 4.2.1 warns if we use the address of an object in Boolean context:
1711 # warning: the address of `builtin_modules' will always evaluate as `true'
1712 # This hits the object_lock and foreach_module macros in particular.
1713 # It would be okay to put something in the macros to avoid the warning,
1714 # but currently this seems to require defining parallel macros that skip
1715 # the NULL check, and that's too ugly. So we instead disable the warning.
1716 # GCC 4.2.1 needs -Wno-address, but GCC 4.2 snapshots need -Wno-always-true.
1717 # GCC 4.1.3 recognizes neither and exits with code 1 if they are given.
1718 for warning_flag in -Wno-address -Wno-always-true; do
1719 AC_MSG_CHECKING([whether $CC accepts $warning_flag])
1721 CFLAGS="$CFLAGS $warning_flag"
1722 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1723 [AC_MSG_RESULT([yes])
1725 [AC_MSG_RESULT([no])])
1729 # Bug 1012: Some parts of ELinks do arithmetic with signed integers
1730 # in such a way that an overflow is possible. GCC 4.2.1 warns
1731 # "warning: assuming signed overflow does not occur when assuming
1732 # that (X + c) > X is always true", which may be an incorrect
1733 # optimization (although allowed by the standard), and breaks the
1734 # build with -Werror.
1736 # All of the following tests included -S -Wall -Wextra:
1738 # GCC: (GNU) 4.0.4 20060507 (prerelease) (Debian 4.0.3-3)
1739 # * gcc-4.0 -O0: OK, compares the values
1740 # * gcc-4.0 -O2: assumes no overflow, does not warn
1741 # * gcc-4.0 -O0 -fno-strict-overflow: unrecognized command line option
1742 # * gcc-4.0 -O0 -fwrapv: OK, compares the values
1743 # * gcc-4.0 -O2 -fwrapv: OK, compares the values
1744 # * gcc-4.0 -O0 -ftrapv: OK, calls __addvsi3
1745 # * gcc-4.0 -O2 -ftrapv: assumes no overflow, does not warn
1746 # * gcc-4.0 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1747 # * gcc-4.0 -O2 -fwrapv -ftrapv: compares the values
1749 # GCC: (GNU) 4.1.3 20070812 (prerelease) (Debian 4.1.2-15)
1750 # * gcc-4.1 -O0: assumes no overflow, does not warn
1751 # * gcc-4.1 -O2: assumes no overflow, does not warn
1752 # * gcc-4.1 -O0 -fno-strict-overflow: unrecognized command line option
1753 # * gcc-4.1 -O0 -fwrapv: OK, compares the values
1754 # * gcc-4.1 -O2 -fwrapv: OK, compares the values
1755 # * gcc-4.1 -O0 -ftrapv: OK, calls __addvsi3
1756 # * gcc-4.1 -O2 -ftrapv: compares the values
1757 # * gcc-4.1 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1758 # * gcc-4.1 -O2 -fwrapv -ftrapv: compares the values
1760 # GCC: (GNU) 4.2.1 (Debian 4.2.1-5)
1761 # * gcc-4.2 -O0: OK, compares the values
1762 # * gcc-4.2 -O2: assumes no overflow, warns about it
1763 # * gcc-4.2 -O0 -fno-strict-overflow: OK, compares the values
1764 # * gcc-4.2 -O2 -fno-strict-overflow: OK, compares the values
1765 # * gcc-4.2 -O0 -fwrapv: OK, compares the values
1766 # * gcc-4.2 -O2 -fwrapv: OK, compares the values
1767 # * gcc-4.2 -O0 -ftrapv: OK, calls __addvsi3
1768 # * gcc-4.2 -O2 -ftrapv: compares the values
1769 # * gcc-4.2 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1770 # * gcc-4.2 -O2 -fwrapv -ftrapv: compares the values
1772 # Apparently, -ftrapv does not work reliably at all.
1773 for overflow_flag in -fno-strict-overflow -fwrapv; do
1774 AC_MSG_CHECKING([whether $CC accepts $overflow_flag])
1776 CFLAGS="$CFLAGS $overflow_flag"
1777 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1778 [AC_MSG_RESULT([yes])
1780 [AC_MSG_RESULT([no])])
1785 AC_SUBST(GETTEXT_CFLAGS)
1786 EL_LOG_CONFIG(CFLAGS, [Compiler flags (CFLAGS)], [])
1787 EL_LOG_CONFIG(CPPFLAGS, [Preprocessor flags (CPPFLAGS)], [])
1788 EL_LOG_CONFIG(LDFLAGS, [Linker flags (LDFLAGS)], [])
1789 EL_LOG_CONFIG(LIBS, [Library flags (LIBS)], [])
1791 # ===================================================================
1792 # Colored make output
1793 # ===================================================================
1795 if test $(`which tput` colors 2> /dev/null || echo 0) -ge 4; then
1797 AC_SUBST(MAKE_COLOR)
1800 # ===================================================================
1802 # ===================================================================
1806 contrib/elinks.spec \
1807 contrib/lua/hooks.lua \
1808 contrib/conv/w3m2links.awk \
1810 doc/man/man1/elinks.1 \
1811 src/intl/gettext/ref-add.sed \
1812 src/intl/gettext/ref-del.sed
1816 abs_srcdir="$(cd "$srcdir" && pwd)"
1817 # builddir is always absolute!
1818 if test "$abs_srcdir" != "$builddir"; then
1819 # Bootstrap the Makefile creation
1820 echo "include $abs_srcdir/Makefile" > "$builddir/Makefile"
1821 "$MAKE" "SRC=$abs_srcdir" init
1823 # Make cg-status ignore this build directory
1824 echo "*" > "$builddir/.gitignore"
1827 # ===================================================================
1828 # Configuration summary
1829 # ===================================================================
1831 AC_MSG_RESULT(The following feature summary has been saved to features.log)