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]])
224 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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], [$2], [])
470 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_GPM, gpm, gpm.h, gpm, Gpm_Open,
471 [ --without-gpm disable gpm (mouse) support])
473 # ELinks calls deflateInit2 with windowBits = MAX_WBITS | 32, to
474 # enable automatic decoding of both zlib and gzip headers. This
475 # feature was added in zlib 1.2.0.2; earlier versions return an error.
476 # The gzclearerr function was also added in zlib 1.2.0.2, so check for
477 # that, even though ELinks does not actually call gzclearerr.
478 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_GZIP, zlib, zlib.h, z, gzclearerr,
479 [ --without-zlib disable zlib support])
481 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_BZIP2, bzlib, bzlib.h, bz2, BZ2_bzReadOpen,
482 [ --without-bzlib disable bzlib support])
484 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_IDN, idn, idna.h, idn, stringprep_check_version,
485 [ --without-idn disable international domain names support])
487 # LZMA disabled by default, because of little usability and compilation problems
489 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_LZMA, lzma, lzma.h, lzma, lzma_code,
490 [ --with-lzma enable lzma encoding support])
492 # ===================================================================
493 # Check for GSSAPI, optional even if installed.
494 # ===================================================================
498 AC_ARG_WITH(gssapi, [ --with-gssapi enable GSSAPI support],
499 [ if test "x$withval" != xno; then enable_gssapi=yes; fi ])
501 AC_MSG_CHECKING([for GSSAPI])
503 if test "$enable_gssapi" = "yes"; then
505 GSSAPI_CFLAGS=`krb5-config --cflags gssapi`
506 GSSAPI_LIBS=`krb5-config --libs gssapi`
507 CFLAGS="$GSSAPI_CFLAGS $CFLAGS"
508 LIBS="$GSSAPI_LIBS $LIBS"
509 EL_CONFIG(CONFIG_GSSAPI, [GssApi])
514 AC_SUBST(CONFIG_GSSAPI)
516 # ===================================================================
517 # Bookmark and XBEL support
518 # ===================================================================
522 EL_ARG_ENABLE(CONFIG_BOOKMARKS, bookmarks, [Bookmarks],
523 [ --disable-bookmarks disable bookmark support])
525 # Check whether --enable-xbel or --disable-xbel was given.
526 if test "x${enable_xbel}" != xno; then
527 AC_CHECK_HEADERS(expat.h, HAVE_LIBEXPAT=yes, HAVE_LIBEXPAT=no)
529 if test "$HAVE_LIBEXPAT" = yes; then
530 AC_CHECK_LIB(expat, XML_ParserCreate, HAVE_LIBEXPAT=yes, HAVE_LIBEXPAT=no)
531 if test "$HAVE_LIBEXPAT" = yes; then
538 EL_ARG_DEPEND(CONFIG_XBEL_BOOKMARKS, xbel, [CONFIG_BOOKMARKS:yes HAVE_LIBEXPAT:yes],
540 [ --disable-xbel disable XBEL bookmark support (requires expat)])
542 if test "$CONFIG_XBEL_BOOKMARKS" != yes; then
546 # ===================================================================
547 # Checks for BSD sysmouse
548 # ===================================================================
550 HAVE_SYSMOUSE_HEADER="no"
552 # Either of these header files provides the (same) sysmouse interface
553 AC_CHECK_HEADERS(sys/consio.h machine/console.h, [HAVE_SYSMOUSE_HEADER="yes"])
555 # ===================================================================
557 # ===================================================================
559 if test "$CONFIG_OS_OS2" = yes; then
563 # ===================================================================
565 # ===================================================================
567 if test "$CONFIG_OS_WIN32" = yes; then
571 # ===================================================================
572 # Check for SpiderMonkey, optional even if installed.
573 # ===================================================================
575 # This option sets the $with_spidermonkey variable.
576 AC_ARG_WITH([spidermonkey],
577 [AS_HELP_STRING([--without-spidermonkey],
578 [disable SpiderMonkey Mozilla JavaScript engine support])])
580 # CONFIG_SPIDERMONKEY is initially blank. We change it to "yes" or "no"
581 # when we know for sure whether we're going to use SpiderMonkey or not.
582 # (features.conf is not supposed to define it.)
586 case "$with_spidermonkey" in
588 # The user specified --without-spidermonkey.
589 # That overrides the other SpiderMonkey options.
590 AC_MSG_CHECKING([for SpiderMonkey])
591 AC_MSG_RESULT([disabled])
592 CONFIG_SPIDERMONKEY="no"
597 AC_MSG_WARN([This version of ELinks does not support --with-spidermonkey=DIRECTORY.])
601 # The SpiderMonkey 1.8.5 standalone sources install mozjs185.pc,
602 # but the Debian libmozjs-dev package installs mozilla-js.pc.
603 # Check mozjs185 first, because it has the version number in the name
604 # and therefore is less likely to be a newer incompatible version.
605 # (This configure script rejects older incompatible versions
606 # but can let newer ones through.)
607 for package in mozjs185 mozilla-js; do
608 if test -n "$CONFIG_SPIDERMONKEY"; then
611 AC_MSG_CHECKING([for SpiderMonkey (1.8.5 or later) in pkg-config $package])
612 # In pkg-config 0.25, pkg-config --exists mozjs185
613 # returns 0 (success) even if mozjs185 depends on
614 # nspr, which has not been installed. However,
615 # pkg-config --cflags mozjs185 returns 1 then.
616 if pkg-config --cflags --libs $package > /dev/null 2>&AS_MESSAGE_LOG_FD; then
617 SPIDERMONKEY_LIBS="$(pkg-config --libs $package)"
618 SPIDERMONKEY_CFLAGS="$(pkg-config --cflags $package)"
619 LIBS="$SPIDERMONKEY_LIBS $LIBS_X"
620 CFLAGS="$CFLAGS_X $SPIDERMONKEY_CFLAGS"
621 CPPFLAGS="$CPPFLAGS_X $SPIDERMONKEY_CFLAGS"
624 /* mozilla-js.pc may have -DXP_UNIX or similar in Cflags.
625 * Avoid warnings about conflicting definitions. */
626 #if !defined(XP_BEOS) && !defined(XP_OS2) && !defined(XP_UNIX) && !defined(XP_WIN)
631 # error <jsapi.h> did not define JS_VERSION
632 #elif JS_VERSION < 185
635 [CONFIG_SPIDERMONKEY=yes
636 AC_MSG_RESULT([yes])],
637 [# Leave CONFIG_SPIDERMONKEY blank, to continue the search.
638 AC_MSG_RESULT([found but unusable])])
645 if test -z "$CONFIG_SPIDERMONKEY"; then
646 # Didn't find SpiderMonkey anywhere.
647 CONFIG_SPIDERMONKEY=no
650 if test "$CONFIG_SPIDERMONKEY" = "yes"; then
651 # LIBS, CFLAGS, and CPPFLAGS still include the SpiderMonkey options.
652 AC_CHECK_FUNCS([JS_ReportAllocationOverflow])
653 AC_CHECK_FUNCS([JS_SetBranchCallback])
654 AC_CHECK_FUNCS([JS_TriggerOperationCallback], [HAVE_JS_TRIGGEROPERATIONCALLBACK=yes])
655 elif test -n "$with_spidermonkey" && test "x$with_spidermonkey" != "xno"; then
656 AC_MSG_WARN([SpiderMonkey was not found even though you specified --with-spidermonkey.])
660 if test "x$CONFIG_SPIDERMONKEY" = xyes; then
661 EL_CONFIG(CONFIG_ECMASCRIPT_SMJS, [SpiderMonkey document scripting])
663 CONFIG_ECMASCRIPT_SMJS=no
666 EL_CONFIG_DEPENDS(CONFIG_ECMASCRIPT, [CONFIG_ECMASCRIPT_SMJS], [ECMAScript (JavaScript)])
667 AC_SUBST(CONFIG_ECMASCRIPT_SMJS)
669 if test "x$CONFIG_ECMASCRIPT_SMJS" = xyes &&
670 test "x$HAVE_JS_TRIGGEROPERATIONCALLBACK" = xyes &&
671 test "x$HAVE_SETITIMER" = xyes; then
672 EL_CONFIG(CONFIG_ECMASCRIPT_SMJS_HEARTBEAT, [ECMAScript heartbeat support])
674 CONFIG_ECMASCRIPT_SMJS_HEARTBEAT=no
676 AC_SUBST(CONFIG_ECMASCRIPT_SMJS_HEARTBEAT)
679 # ===================================================================
680 # Optional Spidermonkey-based ECMAScript browser scripting
681 # ===================================================================
683 AC_ARG_ENABLE(sm-scripting,
684 [ --disable-sm-scripting ECMAScript browser scripting (requires Spidermonkey)],
685 [if test "$enableval" != no; then enableval="yes"; fi
686 CONFIG_SCRIPTING_SPIDERMONKEY="$enableval";])
688 if test "x$CONFIG_SPIDERMONKEY" = xyes &&
689 test "x$CONFIG_SCRIPTING_SPIDERMONKEY" = xyes; then
690 EL_CONFIG(CONFIG_SCRIPTING_SPIDERMONKEY, [SpiderMonkey])
692 CONFIG_SCRIPTING_SPIDERMONKEY=no
695 if test "x$CONFIG_ECMASCRIPT_SMJS" = xyes ||
696 test "x$CONFIG_SCRIPTING_SPIDERMONKEY" = xyes; then
697 LIBS="$LIBS $SPIDERMONKEY_LIBS"
698 AC_SUBST(SPIDERMONKEY_LIBS)
699 AC_SUBST(SPIDERMONKEY_CFLAGS)
700 AC_SUBST(CONFIG_SPIDERMONKEY)
703 # ===================================================================
704 # Check for Guile, optional even if installed.
705 # ===================================================================
709 AC_ARG_WITH(guile, [ --with-guile enable Guile support],
710 [ if test "x$withval" != xno; then enable_guile=yes; fi ])
712 # The following is probably bad, ugly and so on. Stolen from Guile's (1.4)
713 # GUILE_FLAGS but I really don't want to require people to have Guile in order
714 # to compile CVS. Also, the macro seems to be really stupid regarding searching
715 # for Guile in $PATH etc. --pasky
717 AC_MSG_CHECKING([for Guile])
719 if test "$enable_guile" = "yes"; then
721 ## Based on the GUILE_FLAGS macro.
723 if test -d "$withval"; then
724 GUILE_PATH="$withval:$PATH"
729 AC_PATH_PROG(GUILE_CONFIG, guile-config, no, $GUILE_PATH)
731 ## First, let's just see if we can find Guile at all.
732 if test "$GUILE_CONFIG" != no; then
735 GUILE_LIBS="`guile-config link`"
736 GUILE_CFLAGS="`guile-config compile`"
737 LIBS="$GUILE_LIBS $LIBS"
738 EL_CONFIG(CONFIG_SCRIPTING_GUILE, [Guile])
739 AC_SUBST(GUILE_CFLAGS)
741 ***********************************************************************
742 The Guile support is incomplete and not so well integrated to ELinks
743 yet. That means, e.g., that you have no Guile console and there might
744 not be all the necessary hooks. Also, the Guile interface is not too
745 well tested (success stories heartily welcomed!). See
746 src/scripting/guile/README for further details and hints.
747 ***********************************************************************
750 if test -n "$withval" && test "x$withval" != xno; then
751 AC_MSG_ERROR([Guile not found])
753 AC_MSG_WARN([Guile support disabled])
760 # ===================================================================
762 # ===================================================================
765 AC_ARG_WITH(perl, [ --with-perl enable Perl support],
767 if test "$withval" = yes; then
768 # FIXME: If withval is a valid directory append it to PATH
769 # so that you can specify one of several perl installations.
775 AC_MSG_CHECKING([for Perl])
781 if test "$enable_perl" = "yes"; then
782 PERL_LIBS="`perl -MExtUtils::Embed -e ldopts`"
783 PERL_CFLAGS="`perl -MExtUtils::Embed -e ccopts`"
784 LIBS="$PERL_LIBS $LIBS"
785 CFLAGS="$PERL_CFLAGS $CFLAGS"
786 CPPFLAGS="$CPPFLAGS $PERL_CFLAGS"
787 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
791 ]], [[PerlInterpreter *my_perl = perl_alloc();]])],[cf_result=yes],[cf_result=no])
794 if test "$cf_result"; then AC_MSG_RESULT($cf_result); fi
796 AC_MSG_CHECKING([whether POPpx works without an n_a variable])
797 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
800 extern PerlInterpreter *my_perl;
801 ]], [[dSP; (void) POPpx;]])],[AC_MSG_RESULT([yes])
802 AC_DEFINE([CONFIG_PERL_POPPX_WITHOUT_N_A], [1],
803 [Define if using Perl 5.8.8 or later, where the "POPpx" macro
804 no longer needs an "n_a" variable like it did in 5.8.7])],[AC_MSG_RESULT([no])])
806 if test "$cf_result" != "yes"; then
809 EL_CONFIG(CONFIG_SCRIPTING_PERL, [Perl])
812 CPPFLAGS="$CPPFLAGS_X"
814 AC_SUBST(PERL_CFLAGS)
817 # ===================================================================
819 # ===================================================================
822 AC_ARG_WITH(python, [[ --with-python[=DIR] enable Python support]],
823 [ if test "x$withval" != xno; then enable_python=yes; fi ])
828 AC_MSG_CHECKING([for Python])
830 if test "$enable_python" = "yes"; then
833 if test -d "$withval"; then
834 PYTHON_PATH="$withval:$PATH"
839 AC_PATH_PROG(PYTHON, python, no, $PYTHON_PATH)
841 if test "$PYTHON" != no; then
844 PYTHON_CFLAGS="`$PYTHON -c 'from distutils import sysconfig; print "-I%s -I%s" % (sysconfig.get_python_inc(), sysconfig.get_python_inc(plat_specific=True))'`"
845 PYTHON_LIBS="`$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"))'`"
846 LIBS="$PYTHON_LIBS $LIBS"
847 CPPFLAGS="$CPPFLAGS $PYTHON_CFLAGS"
848 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <Python.h>]], [[Py_Initialize();]])],[cf_result=yes],[cf_result=no])
850 if test "$cf_result" != "yes"; then
853 EL_CONFIG(CONFIG_SCRIPTING_PYTHON, [Python])
854 AC_SUBST(PYTHON_LIBS)
855 AC_SUBST(PYTHON_CFLAGS)
856 CPPFLAGS="$CPPFLAGS_X"
858 ***********************************************************************
859 The Python support is incomplete and not so well integrated to ELinks
860 yet. That means, e.g., that you have no Python console and there might
861 not be all the necessary hooks. Also, the Python interface is not too
862 well tested (success stories heartily welcomed!).
863 ***********************************************************************
867 if test -n "$withval" && test "x$withval" != xno; then
868 AC_MSG_ERROR([Python not found])
870 AC_MSG_WARN([Python support disabled])
878 # ===================================================================
879 # Check for Lua, optional even if installed.
880 # ===================================================================
882 # Do this the long way, as FreeBSD reportedly needs -L<dir> for
883 # anything other than /usr/lib, and Lua is very often in /usr/local/lib.
885 AC_ARG_WITH(lua, [ --without-lua disable Lua support],
886 [if test "$withval" = no; then disable_lua=yes; fi])
887 AC_MSG_CHECKING([for Lua])
892 if test -z "$disable_lua"; then
893 if test ! -d "$withval"; then
896 for luadir in "$withval" "" /usr /usr/local; do
897 for suffix in "" 5.1 51; do
898 if test "$cf_result" = no && ( test -f "$luadir/include/lua.h" || \
899 test -f "$luadir/include/lua$suffix/lua.h" ) ; then
900 LUA_LIBS="-L$luadir/lib -llua$suffix -lm"
901 LUA_CFLAGS="-I$luadir/include -I$luadir/include/lua$suffix"
903 LIBS="$LUA_LIBS $LIBS_X"
904 CFLAGS="$CFLAGS_X $LUA_CFLAGS"
905 CPPFLAGS="$CPPFLAGS_X $LUA_CFLAGS"
907 # Check that it is a compatible Lua version
908 AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <lauxlib.h>]
911 ], [[ lua_State *L = luaL_newstate();
913 lua_pushboolean(L, 1);
914 lua_close(L);]])],[cf_result=yes],[cf_result=no])
920 AC_MSG_RESULT($cf_result)
922 if test "$cf_result" != yes; then
925 EL_CONFIG(CONFIG_SCRIPTING_LUA, [Lua])
926 AC_CHECK_HEADERS(lauxlib.h)
929 CPPFLAGS="$CPPFLAGS_X"
934 # ===================================================================
935 # Check for TRE library
936 # ===================================================================
938 # This section only checks that --without-tre is not given and the
939 # library seems to work, and sets TRE_CFLAGS, TRE_LIBS, and
940 # tre_log. It does not define CONFIG_TRE, and always resets
941 # LIBS and CFLAGS back to their original values.
943 # After any --enable-utf-8 and --disable-utf-8 options have been
944 # handled, a separate section decides whether to actually use TRE.
946 # tre version 0.8.0 or higher is required which have the "tre_" prefix
949 AC_ARG_WITH([[tre]], [[ --without-tre disable TRE regex search support]])
950 if test "$with_tre" = no; then
951 AC_MSG_CHECKING([[for TRE]])
952 AC_MSG_RESULT([[disabled]])
953 tre_log="no (explicitly disabled)"
955 AC_MSG_CHECKING([[for TRE in pkg-config]])
956 if pkg-config tre; then
957 TRE_CFLAGS=`pkg-config --cflags tre`
958 TRE_LIBS=`pkg-config --libs tre`
959 AC_MSG_RESULT([[yes]])
961 # <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513055>
962 # "libtre-dev: /usr/lib/pkgconfig/tre.pc missing"
963 # so we look for the library even if pkg-config doesn't know about it.
966 AC_MSG_RESULT([[no, but let's try defaults]])
969 AC_MSG_CHECKING([[for TRE header and library]])
971 CFLAGS="$TRE_CFLAGS $CFLAGS"
972 LIBS="$TRE_LIBS $LIBS" # must be first, because of regfree conflict
973 AC_TRY_LINK([#include <tre/tre.h>],
976 tre_regwcomp(&re, L"zap", REG_ICASE);
977 tre_regwexec(&re, L"ELIZAPROGRAM", 1, match, 0);],
978 [AC_MSG_RESULT([[yes]])
979 tre_log="available"],
980 [AC_MSG_RESULT([[no]])
981 tre_log="no (TRE not found)"])
985 # ===================================================================
986 # Check for Ruby, optional even if installed.
987 # ===================================================================
989 EL_CONFIG_SCRIPTING_RUBY
991 # ===================================================================
992 # Setup global scripting
993 # ===================================================================
995 EL_CONFIG_DEPENDS(CONFIG_SCRIPTING, [CONFIG_SCRIPTING_GUILE CONFIG_SCRIPTING_LUA CONFIG_SCRIPTING_PERL CONFIG_SCRIPTING_PYTHON CONFIG_SCRIPTING_RUBY CONFIG_SCRIPTING_SPIDERMONKEY], [Browser scripting])
996 AC_SUBST(CONFIG_SCRIPTING_GUILE)
997 AC_SUBST(CONFIG_SCRIPTING_LUA)
998 AC_SUBST(CONFIG_SCRIPTING_PERL)
999 AC_SUBST(CONFIG_SCRIPTING_PYTHON)
1000 AC_SUBST(CONFIG_SCRIPTING_RUBY)
1001 AC_SUBST(CONFIG_SCRIPTING_SPIDERMONKEY)
1002 AC_SUBST(CONFIG_SCRIPTING)
1005 # ===================================================================
1006 # Check for SSL support.
1007 # ===================================================================
1009 # We by default use OpenSSL, and we always prefer it. However, when GNUTLS
1010 # is enabled, we won't try to use OpenSSL anymore.
1012 # For wiping SSL hooks..
1015 chosen_ssl_library=""
1017 AC_ARG_WITH(gnutls, [[ --without-gnutls disable GNUTLS SSL support]])
1018 AC_ARG_WITH(gnutls, [[ --with-gnutls enable GNUTLS SSL support]],
1019 [case "$with_gnutls" in
1021 "yes") chosen_ssl_library="GNUTLS" ;;
1022 *) chosen_ssl_library="GNUTLS"
1023 AC_MSG_WARN([[Support for --with-gnutls=DIR has been removed.
1024 You may have to set the PKG_CONFIG_PATH environment variable instead.]]) ;;
1027 AC_ARG_WITH(openssl, [[ --without-openssl disable OpenSSL support]])
1028 AC_ARG_WITH(openssl, [[ --with-openssl[=DIR] enable OpenSSL support (default)]],
1029 [case "$with_openssl" in
1031 *) chosen_ssl_library="OpenSSL" ;;
1034 AC_ARG_WITH(nss_compat_ossl, [[ --with-nss_compat_ossl[=DIR]
1035 NSS compatibility SSL libraries/include files]],
1036 [case "$with_nss_compat_ossl" in
1038 *) chosen_ssl_library="nss_compat_ossl" ;;
1041 # ---- nss_compat_ossl
1043 if test "$with_nss_compat_ossl" = no; then
1044 # explicitly disabled
1046 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "nss_compat_ossl"; then
1047 # not used, because $chosen_ssl_library was chosen
1049 elif test -z "${with_nss_compat_ossl+set}"; then
1050 # SSL_library_init() in nss_compat_ossl 0.9.2 calls exit(1)
1051 # with no error message if there is no certificate database.
1052 # https://bugzilla.redhat.com/show_bug.cgi?id=463437
1053 # So ELinks uses nss_compat_ossl only if explicitly requested.
1057 if test "$with_nss_compat_ossl" = yes; then
1058 if pkg-config nss; then
1059 CFLAGS="$CFLAGS_X `pkg-config --cflags nss`"
1060 LIBS="$LIBS_X `pkg-config --libs nss`"
1062 with_nss_compat_ossl=no
1065 # Without pkg-config, we'll kludge in some defaults
1066 CFLAGS="$CFLAGS_X -I$with_nss_compat_ossl/include -I/usr/include/nss3 -I/usr/include/nspr4"
1067 LIBS="$LIBS_X -L$with_nss_compat_ossl/lib -lssl3 -lsmime3 -lnss3 -lplds4 -lplc4 -lnspr4 -lpthread -ldl"
1069 AC_CHECK_HEADERS(nss_compat_ossl/nss_compat_ossl.h,, [with_nss_compat_ossl=no], [#define NSS_COMPAT_OSSL_H])
1070 AC_CHECK_LIB(nss_compat_ossl, X509_free,, [with_nss_compat_ossl=no])
1072 if test "$with_nss_compat_ossl" = "no"; then
1075 LIBS="$LIBS -lnss_compat_ossl"
1076 EL_CONFIG(CONFIG_NSS_COMPAT_OSSL, [nss_compat_ossl])
1077 chosen_ssl_library="nss_compat_ossl"
1083 AC_MSG_CHECKING([for OpenSSL])
1087 if test "$with_openssl" = no; then
1088 cf_result="explicitly disabled"
1090 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "OpenSSL"; then
1091 cf_result="not used, because $chosen_ssl_library was chosen"
1095 for ssldir in "$with_openssl" "" /usr /usr/local/openssl \
1096 /usr/lib/openssl /usr/local/ssl \
1097 /usr/local/www /usr/lib/ssl /usr/local \
1098 /usr/pkg /opt /opt/openssl; do
1099 if test "$cf_result" = no; then
1100 if test -d "$ssldir"; then
1101 OPENSSL_CFLAGS="-I$ssldir/include"
1102 LIBS="-L$ssldir/lib -lssl -lcrypto $LIBS_X"
1103 CFLAGS="$CFLAGS_X $OPENSSL_CFLAGS"
1104 CPPFLAGS="$CPPFLAGS_X $OPENSSL_CFLAGS"
1105 # # FIXME: This created serious portability problems. --pasky
1106 # if test "$CC" == "gcc"; then
1107 # # I'm not sure about compatibility here. --pasky
1108 # LIBS="$LIBS -R$ssldir/lib"
1111 LIBS="-lssl -lcrypto $LIBS_X"
1113 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <openssl/ssl.h>]], [[OpenSSL_add_all_algorithms()]])],[cf_result=yes],[cf_result=no])
1114 if test "$cf_result" != yes; then
1115 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <openssl/ssl.h>]], [[SSLeay_add_ssl_algorithms()]])],[cf_result=yes],[cf_result=no])
1120 if test "$cf_result" != yes; then
1121 if test "${with_openssl-no}" != "no"; then
1122 AC_MSG_ERROR([OpenSSL not found])
1126 EL_CONFIG(CONFIG_OPENSSL, [OpenSSL])
1127 chosen_ssl_library="OpenSSL"
1130 AC_SUBST(OPENSSL_CFLAGS)
1134 AC_MSG_RESULT($cf_result)
1138 # GnuTLS 2.2.0 changed libgnutls-openssl from GPLv2+
1139 # to GPLv3+. Don't link that with the GPLv2 ELinks.
1140 # ELinks will use its internal MD5 code instead.
1141 CONFIG_GNUTLS_OPENSSL_COMPAT=no
1143 if test "$with_gnutls" = no; then
1144 AC_MSG_CHECKING([[for GNUTLS]])
1145 AC_MSG_RESULT([[explicitly disabled]])
1147 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "GNUTLS"; then
1148 AC_MSG_CHECKING([[for GNUTLS]])
1149 AC_MSG_RESULT([[not used, because $chosen_ssl_library was chosen]])
1153 AC_MSG_CHECKING([[for GNUTLS (1.2 or later) in pkg-config]])
1154 if pkg-config --atleast-version=1.2 gnutls; then
1155 GNUTLS_CFLAGS=`pkg-config --cflags gnutls`
1156 GNUTLS_LIBS=`pkg-config --libs gnutls`
1157 AC_MSG_RESULT([[yes: $GNUTLS_CFLAGS $GNUTLS_LIBS]])
1160 LIBS="$GNUTLS_LIBS $LIBS"
1161 CFLAGS="$CFLAGS $GNUTLS_CFLAGS"
1162 CPPFLAGS="$CPPFLAGS $GNUTLS_CFLAGS"
1164 # Verify if it's really usable. gnutls_session was
1165 # renamed to gnutls_session_t before GNU TLS 1.2.0
1166 # (on 2004-06-13); ELinks now requires this.
1167 AC_MSG_CHECKING([[whether GNUTLS can be linked with]])
1168 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <gnutls/gnutls.h>]],
1169 [[gnutls_session_t dummy;
1170 gnutls_check_version(NULL)]])],
1173 AC_MSG_RESULT([[$cf_result]])
1175 if test "$cf_result" = yes; then
1176 # According to gnutls/NEWS, the function was originally
1177 # added as gnutls_set_default_priority2 in GNUTLS 2.1.4
1178 # (released 2007-10-27) and then renamed to
1179 # gnutls_priority_set_direct in GNUTLS 2.1.7 (released
1181 AC_CHECK_FUNCS([gnutls_priority_set_direct])
1186 AC_MSG_RESULT([[$cf_result]])
1189 if test "$cf_result" = yes; then
1190 EL_CONFIG(CONFIG_GNUTLS, [GNUTLS])
1191 chosen_ssl_library="GNUTLS"
1193 # gcry_create_nounce is part of libgcrypt
1194 LIBGCRYPT_CFLAGS=`libgcrypt-config --cflags`
1195 LIBGCRYPT_LIBS=`libgcrypt-config --libs`
1197 LIBS="$LIBGCRYPT_LIBS $GNUTLS_LIBS $LIBS"
1198 AC_SUBST(LIBGCRYPT_CFLAGS)
1199 AC_SUBST(GNUTLS_CFLAGS)
1201 elif test "${with_gnutls-no}" != "no"; then
1202 AC_MSG_ERROR([[GNUTLS (1.2 or later) not found. ELinks no longer supports GNUTLS 1.1.]])
1208 EL_CONFIG_DEPENDS(CONFIG_SSL, [CONFIG_OPENSSL CONFIG_GNUTLS CONFIG_NSS_COMPAT_OSSL], [SSL])
1209 AC_SUBST(CONFIG_GNUTLS_OPENSSL_COMPAT)
1210 AC_SUBST(CONFIG_OPENSSL)
1211 AC_SUBST(CONFIG_GNUTLS)
1212 AC_SUBST(CONFIG_NSS_COMPAT_OSSL)
1216 AC_MSG_CHECKING([whether to be or not to be])
1217 AC_MSG_RESULT([needs to be determined experimentally])
1219 # ===================================================================
1220 # Check for IPv6 support and related functions.
1221 # ===================================================================
1223 EL_CHECK_NET_TYPE(struct sockaddr_storage, HAVE_SA_STORAGE, [])
1224 EL_CHECK_NET_TYPE(struct sockaddr_in6, HAVE_SA_IN6, [#include <netinet/in.h>])
1225 EL_CHECK_NET_TYPE(struct addrinfo, HAVE_ADDRINFO, [#include <netdb.h>])
1227 AC_CHECK_FUNC(getaddrinfo, HAVE_GETADDRINFO=yes, HAVE_GETADDRINFO=no)
1228 if test "$HAVE_GETADDRINFO" != yes; then
1229 AC_CHECK_LIB(inet6, getaddrinfo, HAVE_GETADDRINFO=yes, HAVE_GETADDRINFO=no)
1230 if test "$HAVE_GETADDRINFO" = yes; then
1231 LIBS="$LIBS -linet6"
1236 # ===================================================================
1237 # Checking for X11 (window title restoring).
1238 # ===================================================================
1241 if test x"$no_x" != xyes; then
1243 if test -n "$x_includes"; then
1244 X_CFLAGS="-I$x_includes"
1245 CPPFLAGS="$CPPLAGS $X_CFLAGS"
1246 CFLAGS="$CFLAGS $X_CFLAGS"
1248 if test -n "$x_libraries"; then
1249 LDFLAGS="$LDFLAGS -L$x_libraries"
1252 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]], [[XrmInitialize()]])],[cf_result=yes],[cf_result=no])
1254 if test "$cf_result" = yes; then
1255 if test -n "$x_libraries"; then
1256 LDFLAGS="$LDFLAGS -L$x_libraries"
1259 EL_DEFINE(HAVE_X11, [X11 for restoring window titles])
1265 # ===================================================================
1266 # Backtraces displaying support.
1267 # ===================================================================
1269 AC_CHECK_HEADERS(execinfo.h, HAVE_EXECINFO=yes, HAVE_EXECINFO=no)
1270 # possible checks for other system-specific means go here
1273 # ===================================================================
1274 # Gettext grey zone. Beware.
1275 # ===================================================================
1277 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"
1281 # iconv is always used
1282 LIBS="$LIBS $LIBICONV"
1284 dnl AC_MSG_CHECKING([how many characters your English alphabet has])
1285 dnl # f33r d4 l33t... I hope it's portable. :)
1286 dnl cf_result=$((48#z - 48#a + 1));
1287 dnl AC_MSG_RESULT($cf_result)
1290 # ===================================================================
1291 # Compile-time features control
1292 # ===================================================================
1294 EL_ARG_ENABLE(CONFIG_COOKIES, cookies, [Cookies],
1295 [ --disable-cookies disable cookie support])
1297 EL_ARG_ENABLE(CONFIG_FORMHIST, formhist, [Form history],
1298 [ --disable-formhist disable form history support])
1300 EL_ARG_ENABLE(CONFIG_GLOBHIST, globhist, [Global history],
1301 [ --disable-globhist disable global history support])
1304 EL_ARG_ENABLE(CONFIG_MAILCAP, mailcap, [Mailcap],
1305 [ --disable-mailcap disable mailcap support])
1307 EL_ARG_ENABLE(CONFIG_MIMETYPES, mimetypes, [Mimetypes files],
1308 [ --disable-mimetypes disable mimetypes files support])
1311 EL_ARG_DEPEND(CONFIG_IPV6, ipv6,
1312 [HAVE_SA_STORAGE:yes HAVE_SA_IN6:yes HAVE_ADDRINFO:yes HAVE_GETADDRINFO:yes],
1314 [ --disable-ipv6 disable IPv6 support])
1316 EL_ARG_ENABLE(CONFIG_BITTORRENT, bittorrent, [BitTorrent protocol],
1317 [ --enable-bittorrent enable BitTorrent protocol support])
1319 EL_ARG_ENABLE(CONFIG_DATA, data, [Data protocol],
1320 [ --disable-data disable data protocol support])
1322 EL_ARG_ENABLE(CONFIG_URI_REWRITE, uri-rewrite, [URI rewriting],
1323 [ --disable-uri-rewrite disable URI rewrite support])
1325 EL_ARG_DEPEND(CONFIG_CGI, cgi, [HAVE_SETENV_OR_PUTENV:yes], [Local CGI],
1326 [ --enable-cgi enable local CGI support])
1328 EL_ARG_ENABLE(CONFIG_FINGER, finger, [Finger protocol],
1329 [ --enable-finger enable finger protocol support])
1331 # ===================================================================
1333 # ===================================================================
1336 if test "x${enable_fsp}" != xno; then
1337 AC_CHECK_HEADERS(fsplib.h, HAVE_FSPLIB=yes, HAVE_FSPLIB=no)
1339 if test "$HAVE_FSPLIB" = yes; then
1340 AC_CHECK_LIB(fsplib, fsp_open_session, HAVE_FSPLIB=yes, HAVE_FSPLIB=no)
1341 if test "$HAVE_FSPLIB" = yes; then
1342 LIBS="$LIBS -lfsplib"
1344 AC_CHECK_LIB(fsp, fsp_open_session, HAVE_FSPLIB=yes, HAVE_FSPLIB=no)
1345 if test "$HAVE_FSPLIB" = yes; then
1352 EL_ARG_DEPEND(CONFIG_FSP, fsp, [HAVE_FSPLIB:yes], [FSP protocol],
1353 [ --enable-fsp enable FSP protocol support])
1355 if test "x$CONFIG_FSP" = xno; then
1359 EL_ARG_ENABLE(CONFIG_FTP, ftp, [FTP protocol],
1360 [ --disable-ftp disable ftp protocol support])
1362 EL_ARG_ENABLE(CONFIG_GOPHER, gopher, [Gopher protocol],
1363 [ --enable-gopher enable gopher protocol support])
1365 EL_ARG_ENABLE(CONFIG_NNTP, nntp, [NNTP protocol],
1366 [ --enable-nntp enable nntp protocol support])
1368 # ===================================================================
1369 # SMB protocol support.
1370 # ===================================================================
1373 if test "x${enable_smb}" != xno; then
1374 AC_CHECK_HEADERS(libsmbclient.h, HAVE_SMBCLIENT=yes, HAVE_SMBCLIENT=no)
1376 if test "$HAVE_SMBCLIENT" = yes; then
1377 AC_CHECK_LIB(smbclient, smbc_init, HAVE_SMBCLIENT=yes, HAVE_SMBCLIENT=no)
1378 if test "$HAVE_SMBCLIENT" = yes; then
1379 LIBS="$LIBS -lsmbclient"
1384 EL_ARG_DEPEND(CONFIG_SMB, smb, [HAVE_SMBCLIENT:yes], [Samba protocol],
1385 [ --enable-smb enable Samba protocol support])
1387 if test "x$CONFIG_SMB" = xno; then
1392 EL_ARG_ENABLE(CONFIG_MOUSE, mouse, [Mouse handling],
1393 [ --disable-mouse disable mouse support])
1395 # GPM mouse is Linux specific, so ...
1397 EL_ARG_DEPEND(CONFIG_SYSMOUSE, sysmouse,
1398 [CONFIG_MOUSE:yes CONFIG_GPM:no HAVE_SYSMOUSE_HEADER:yes],
1400 [ --disable-sysmouse disable BSD sysmouse support])
1402 EL_ARG_ENABLE(CONFIG_88_COLORS, 88-colors, [88 colors],
1403 [ --enable-88-colors enable 88 color support])
1405 EL_ARG_ENABLE(CONFIG_256_COLORS, 256-colors, [256 colors],
1406 [ --enable-256-colors enable 256 color support])
1408 EL_ARG_ENABLE(CONFIG_TRUE_COLOR, true-color, [true color],
1409 [ --enable-true-color enable true color support])
1411 EL_ARG_ENABLE(CONFIG_EXMODE, exmode, [Exmode interface],
1412 [ --enable-exmode enable exmode (CLI) interface])
1414 EL_ARG_ENABLE(CONFIG_LEDS, leds, [LEDs],
1415 [ --disable-leds disable LEDs support])
1417 EL_ARG_ENABLE(CONFIG_MARKS, marks, [Marks],
1418 [ --disable-marks disable document marks support])
1421 EL_ARG_ENABLE(CONFIG_CSS, css, [Cascading Style Sheets],
1422 [ --disable-css disable Cascading Style Sheet support])
1424 EL_ARG_DEPEND(CONFIG_HTML_HIGHLIGHT, html-highlight, [CONFIG_CSS:yes], [HTML highlighting],
1425 [ --enable-html-highlight HTML highlighting using DOM engine])
1427 # Everything in the tree already uses CONFIG_DOM
1428 # so resolve CONFIG_HTML_HIGHLIGHT to CONFIG_DOM
1429 EL_CONFIG_DEPENDS(CONFIG_DOM, [CONFIG_HTML_HIGHLIGHT], [DOM engine])
1431 EL_ARG_DEPEND(CONFIG_BACKTRACE, backtrace, [HAVE_EXECINFO:yes], [Backtrace],
1432 [ --disable-backtrace disable backtrace support])
1434 EL_ARG_DEPEND(CONFIG_NO_ROOT_EXEC, no-root, [HAVE_GETUID:yes HAVE_GETEUID:yes], [No root exec],
1435 [ --enable-no-root enable prevention of usage by root])
1438 EL_ARG_ENABLE(CONFIG_DEBUG, debug, [Debug mode],
1439 [ --enable-debug enable leak debug and internal error checking])
1441 EL_ARG_DEPEND(CONFIG_FASTMEM, fastmem, [CONFIG_DEBUG:no], [Fast mode],
1442 [ --enable-fastmem enable direct use of system allocation functions, not usable with --enable-debug])
1444 EL_ARG_ENABLE(CONFIG_OWN_LIBC, own-libc, [Own libc stubs],
1445 [ --enable-own-libc force use of internal functions instead of those of system libc])
1447 EL_ARG_ENABLE(CONFIG_SMALL, small, [Small binary],
1448 [ --enable-small reduce binary size as far as possible (but see the bottom of doc/small.txt!)])
1450 EL_ARG_ENABLE(CONFIG_UTF8, utf-8, [UTF-8],
1451 [ --disable-utf-8 disable UTF-8 support])
1453 EL_ARG_DEPEND(CONFIG_COMBINE, combining, [CONFIG_UTF8:yes HAVE_WCWIDTH:yes], [Combining characters],
1454 [ --enable-combining support Unicode combining characters (experimental)])
1457 AC_ARG_ENABLE(weehoofooboomookerchoo,
1459 Also check out the features.conf file for more information about features!
1461 [AC_MSG_ERROR(Are you strange, or what?)])
1464 # ===================================================================
1465 # Decide whether to use TRE
1466 # ===================================================================
1468 # This must be done after the CONFIG_UTF8 check above.
1469 # The first part of the TRE check is separate, to get
1470 # the configure --help output in a sensible order.
1472 # After this section, nothing else must be added to the
1473 # beginning of $LIBS.
1475 if test "$tre_log" = "available"; then
1476 if test "$CONFIG_UTF8" = "yes"; then
1477 # When CONFIG_UTF8 and CONFIG_TRE are both defined,
1478 # src/viewer/text/search.c makes a string of
1479 # unicode_val_T and gives it to regwexec(), which
1480 # expects a string of wchar_t. If the unicode_val_T
1481 # and wchar_t types are too different, this won't
1482 # work, so try to detect that and disable regexp
1483 # operations entirely in that case.
1485 # Currently, this code only compares the sizes of the
1486 # types. src/intl/charsets.h defines unicode_val_T as
1487 # uint32_t, so we check whether wchar_t has exactly 32
1488 # bits. But don't use AC_CHECK_SIZEOF for this, because
1489 # there doesn't seem to be a documented way to get the
1490 # result of that for use in the configure script.
1492 # C99 says the implementation can define
1493 # __STDC_ISO_10646__ if wchar_t values match ISO 10646
1494 # (or Unicode) numbers in all locales. Do not check
1495 # that macro here, because it is too restrictive: it
1496 # should be enough for ELinks if the values match in
1497 # the locales where ELinks is actually run.
1498 AC_MSG_CHECKING([[whether wchar_t is exactly 32-bit]])
1499 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1502 int dummy[(sizeof(wchar_t) * CHAR_BIT == 32) ? 1 : -1];]], [])],
1503 [AC_MSG_RESULT([[yes]])
1505 [AC_MSG_RESULT([[no]])
1506 tre_log="no (unsuitable wchar_t)"])
1508 # If UTF-8 is not used, then wchar_t doesn't matter.
1513 if test "$tre_log" = "TRE"; then
1514 AC_DEFINE([CONFIG_TRE], [1],
1515 [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.])
1516 # TRE_CFLAGS will be used only where needed.
1518 # Bug 1081: If both TRE and libc define the regfree function,
1519 # ELinks needs to use the version defined by TRE because
1520 # that's the one compatible with regex_t initialized by the
1521 # regwcomp function of TRE. Therefore put $TRE_LIBS at the
1522 # very beginning of $LIBS so that the linker hopefully finds
1523 # regfree there before it examines libc. In particular,
1524 # $PERL_LIBS appears to often include "-lc".
1526 # This scheme still risks a crash if ELinks is linked with
1527 # some static library that uses GNU <regex.h> extensions that
1528 # TRE does not implement. For example, the library might call
1529 # re_compile_pattern, which is found in GNU libc, and then
1530 # regfree, which is found in TRE and probably crashes with the
1531 # GNU-initialized regex_t. Ways to avoid such crashes:
1533 # - Change TRE so it defines only tre_... functions and does
1534 # not attempt to override the POSIX names by default.
1536 # - Change ELinks to access TRE only via dlopen and dlsym.
1537 # The problem then is how to find the correct file name.
1538 # There might be libtre.so.4 and libtre.so.5 with different
1539 # ABI. How can this configure script detect which of them
1540 # matches the <tre/regex.h> in the include path?
1542 # - Replace the static library with a shared library. At
1543 # least on GNU/Linux, when the shared library is built, the
1544 # linker should note that e.g. regfree is defined in libc
1545 # and has the GLIBC_2.0 version there, and write that
1546 # version string to the shared library as well; because TRE
1547 # does not provide regfree with that version, any regfree
1548 # calls at run time should then get resolved to libc.
1549 LIBS="$TRE_LIBS $LIBS"
1554 AC_SUBST(TRE_CFLAGS)
1556 EL_LOG_CONFIG([CONFIG_TRE], [[Regexp searching]], [[$tre_log]])
1559 # ===================================================================
1560 # Further LDFLAGS tweaks
1561 # ===================================================================
1565 test "$CONFIG_OS_OS2" = yes && LDFLAGS="$LDFLAGS -Zexe"
1566 test "$CONFIG_OS_OS2" = yes && LDFLAGS=`echo "$LDFLAGS" | sed "s/-Zbin-files//g"`
1569 # Check for -rdynamic
1571 # gcc -rdynamic calls ld -export-dynamic, which adds all symbols of
1572 # the executable to its dynamic symbol table. ELinks uses this for
1575 # 1. If ELinks detects a bug, it can try to display a backtrace by
1576 # calling backtrace_symbols_fd() in the GNU libc. The glibc-2.3.6
1577 # manual states users of GNU ld must pass -rdynamic to make the
1578 # symbols available to the program.
1580 # 2. It would eventually be nice to dynamically load shared
1581 # libraries as plugins (bug 73). The plugins must be able to
1582 # call ELinks functions. This can be implemented either by
1583 # registering all callable functions in ELinks-specific data
1584 # structures, or by letting the dynamic linker handle them.
1585 # The latter way requires something equivalent to -rdynamic.
1587 # Because backtraces are not needed for correct operation, and bug
1588 # 73 is not yet being fixed, the configure script and makefiles
1589 # should not complain to the user if they find that -rdynamic does
1590 # not work. Besides, it was reported at elinks-users on 2006-09-12
1591 # that gcc-3.4.2 with "ld: Software Generation Utilities - Solaris
1592 # Link Editors: 5.8-1.284" on Sun Solaris 8 Sparc does not support
1593 # -rdynamic but does something equivalent automatically. (This was
1594 # tested with "nm -D elinks | grep redraw_from_window".)
1596 # With Sun Studio 11 on Solaris 9, we get "cc: Warning: illegal option
1597 # -dynamic"; then, cc proceeds anyway, but the option can prevent the
1598 # linker from finding the libraries listed in -l operands. So this
1599 # -rdynamic check needs to happen after the libraries have already
1600 # been added to $LDFLAGS.
1601 AC_MSG_CHECKING([for -rdynamic])
1602 LDFLAGS_X="$LDFLAGS"
1603 LDFLAGS="-rdynamic $LDFLAGS"
1604 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[have_rdynamic=yes],[have_rdynamic=no])
1605 test "$have_rdynamic" = no && LDFLAGS="$LDFLAGS_X"
1606 AC_MSG_RESULT($have_rdynamic)
1608 # ===================================================================
1609 # Export directory paths
1610 # ===================================================================
1612 # Set up the ``entry points'' if they were not supplied by builder
1613 test "x$prefix" = xNONE && prefix=$ac_default_prefix
1614 test "x$exec_prefix" = xNONE && exec_prefix=${prefix}
1616 # Create CONFDIR #define for config.h
1618 # XXX: This may be dependent on a particular version of autoconf. Whatever,
1619 # it's autoconf fault to force us to do such hacks ;p.
1620 if test x"$sysconfdir" = x"\${prefix}/etc"; then
1621 # sysconfdir is set to its default value... fine, let's append /elinks/
1622 # XXX: We can't modify listing of the default in ./configure --help :-(
1623 sysconfdir_n=`eval echo "$sysconfdir"`
1624 sysconfdir=$sysconfdir_n
1625 (echo "$sysconfdir" | grep elinks >/dev/null 2>/dev/null) || \
1626 sysconfdir="$sysconfdir/elinks"
1630 AC_DEFINE_UNQUOTED(CONFDIR, "$CONFDIR", [Directory containing default config])
1633 # Create LOCALEDIR #define for config.h
1634 LOCALEDIR=`eval echo "$datadir/locale"`
1635 while echo "$LOCALEDIR" | grep "\\$"
1637 LOCALEDIR=`eval echo "$LOCALEDIR"`
1638 done > /dev/null 2> /dev/null
1639 AC_DEFINE_UNQUOTED(LOCALEDIR, "$LOCALEDIR", [Directory containing locales])
1642 # Create LIBDIR #define for config.h
1643 LIBDIR=`eval echo "$libdir"`
1644 AC_DEFINE_UNQUOTED(LIBDIR, "$LIBDIR", [Directory containing libraries])
1647 EL_LOG_CONFIG(CONFDIR, [System configuration directory], [])
1648 EL_LOG_CONFIG(LOCALEDIR, [Locale catalogs directory], [])
1651 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stddef.h>
1652 ]], [[#if !defined(__TINYC__) || !defined(alloca)
1654 #endif ]])],[cf_result=yes],[cf_result=no])
1656 if test "$cf_result" = "yes"; then
1657 AC_DEFINE([HAVE_ALLOCA])
1658 AC_DEFINE([_ALLOCA_H], [1], [Define as 1 if you are using Tiny C Compiler
1659 with the GNU C Library, and <alloca.h> of glibc would otherwise
1660 override the alloca macro defined in <stddef.h> of TCC.
1661 If <alloca.h> of glibc sees the _ALLOCA_H macro, it assumes
1662 it has already been included, and does not redefine alloca.
1663 This might not work in future glibc versions though, because
1664 the names of the #include guard macros are not documented.
1665 The incompatibility has been reported to the tinycc-devel
1666 mailing list on 2008-07-14. If a future version of TCC provides
1667 an <alloca.h> of its own, this hack won't be needed.])
1669 # ===================================================================
1670 # A little fine tuning of gcc specific options (continued)
1671 # ===================================================================
1674 if test "x$ac_cv_c_compiler_gnu" = "xyes"; then
1675 if test "$CONFIG_DEBUG" = "yes"; then
1676 # We want to see all warnings and live with none (in debug mode).
1677 CFLAGS="$CFLAGS -Werror"
1679 GETTEXT_CFLAGS="-Wno-uninitialized"
1681 case "`$CC -dumpversion`" in
1683 # These should be ok using -Werror
1686 # If gcc is version 3.3 (or higher?) it emits lots of false positive
1687 # "dereferencing type-punned pointer will break strict-aliasing rules"
1688 # warnings. Disable them by not doing any strict-aliasing. The
1689 # alternative is just too ugly. Thanks gcc guys!! ;)
1690 CFLAGS="$CFLAGS -fno-strict-aliasing"
1693 CFLAGS="$CFLAGS -fno-strict-aliasing -Wno-pointer-sign -Wno-enum-compare"
1696 # Do not show warnings related to (char * | unsigned char *) type
1698 CFLAGS="$CFLAGS -fno-strict-aliasing -Wno-pointer-sign"
1701 # These should be ok using -Werror
1705 # GCC 4.2.1 warns if we use the address of an object in Boolean context:
1706 # warning: the address of `builtin_modules' will always evaluate as `true'
1707 # This hits the object_lock and foreach_module macros in particular.
1708 # It would be okay to put something in the macros to avoid the warning,
1709 # but currently this seems to require defining parallel macros that skip
1710 # the NULL check, and that's too ugly. So we instead disable the warning.
1711 # GCC 4.2.1 needs -Wno-address, but GCC 4.2 snapshots need -Wno-always-true.
1712 # GCC 4.1.3 recognizes neither and exits with code 1 if they are given.
1713 for warning_flag in -Wno-address -Wno-always-true; do
1714 AC_MSG_CHECKING([whether $CC accepts $warning_flag])
1716 CFLAGS="$CFLAGS $warning_flag"
1717 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1718 [AC_MSG_RESULT([yes])
1720 [AC_MSG_RESULT([no])])
1724 # Bug 1012: Some parts of ELinks do arithmetic with signed integers
1725 # in such a way that an overflow is possible. GCC 4.2.1 warns
1726 # "warning: assuming signed overflow does not occur when assuming
1727 # that (X + c) > X is always true", which may be an incorrect
1728 # optimization (although allowed by the standard), and breaks the
1729 # build with -Werror.
1731 # All of the following tests included -S -Wall -Wextra:
1733 # GCC: (GNU) 4.0.4 20060507 (prerelease) (Debian 4.0.3-3)
1734 # * gcc-4.0 -O0: OK, compares the values
1735 # * gcc-4.0 -O2: assumes no overflow, does not warn
1736 # * gcc-4.0 -O0 -fno-strict-overflow: unrecognized command line option
1737 # * gcc-4.0 -O0 -fwrapv: OK, compares the values
1738 # * gcc-4.0 -O2 -fwrapv: OK, compares the values
1739 # * gcc-4.0 -O0 -ftrapv: OK, calls __addvsi3
1740 # * gcc-4.0 -O2 -ftrapv: assumes no overflow, does not warn
1741 # * gcc-4.0 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1742 # * gcc-4.0 -O2 -fwrapv -ftrapv: compares the values
1744 # GCC: (GNU) 4.1.3 20070812 (prerelease) (Debian 4.1.2-15)
1745 # * gcc-4.1 -O0: assumes no overflow, does not warn
1746 # * gcc-4.1 -O2: assumes no overflow, does not warn
1747 # * gcc-4.1 -O0 -fno-strict-overflow: unrecognized command line option
1748 # * gcc-4.1 -O0 -fwrapv: OK, compares the values
1749 # * gcc-4.1 -O2 -fwrapv: OK, compares the values
1750 # * gcc-4.1 -O0 -ftrapv: OK, calls __addvsi3
1751 # * gcc-4.1 -O2 -ftrapv: compares the values
1752 # * gcc-4.1 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1753 # * gcc-4.1 -O2 -fwrapv -ftrapv: compares the values
1755 # GCC: (GNU) 4.2.1 (Debian 4.2.1-5)
1756 # * gcc-4.2 -O0: OK, compares the values
1757 # * gcc-4.2 -O2: assumes no overflow, warns about it
1758 # * gcc-4.2 -O0 -fno-strict-overflow: OK, compares the values
1759 # * gcc-4.2 -O2 -fno-strict-overflow: OK, compares the values
1760 # * gcc-4.2 -O0 -fwrapv: OK, compares the values
1761 # * gcc-4.2 -O2 -fwrapv: OK, compares the values
1762 # * gcc-4.2 -O0 -ftrapv: OK, calls __addvsi3
1763 # * gcc-4.2 -O2 -ftrapv: compares the values
1764 # * gcc-4.2 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1765 # * gcc-4.2 -O2 -fwrapv -ftrapv: compares the values
1767 # Apparently, -ftrapv does not work reliably at all.
1768 for overflow_flag in -fno-strict-overflow -fwrapv; do
1769 AC_MSG_CHECKING([whether $CC accepts $overflow_flag])
1771 CFLAGS="$CFLAGS $overflow_flag"
1772 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1773 [AC_MSG_RESULT([yes])
1775 [AC_MSG_RESULT([no])])
1780 AC_SUBST(GETTEXT_CFLAGS)
1781 EL_LOG_CONFIG(CFLAGS, [Compiler flags (CFLAGS)], [])
1782 EL_LOG_CONFIG(CPPFLAGS, [Preprocessor flags (CPPFLAGS)], [])
1783 EL_LOG_CONFIG(LDFLAGS, [Linker flags (LDFLAGS)], [])
1784 EL_LOG_CONFIG(LIBS, [Library flags (LIBS)], [])
1786 # ===================================================================
1787 # Colored make output
1788 # ===================================================================
1790 if test $(`which tput` colors 2> /dev/null || echo 0) -ge 4; then
1792 AC_SUBST(MAKE_COLOR)
1795 # ===================================================================
1797 # ===================================================================
1801 contrib/elinks.spec \
1802 contrib/lua/hooks.lua \
1803 contrib/conv/w3m2links.awk \
1805 doc/man/man1/elinks.1 \
1806 src/intl/gettext/ref-add.sed \
1807 src/intl/gettext/ref-del.sed
1811 abs_srcdir="$(cd "$srcdir" && pwd)"
1812 # builddir is always absolute!
1813 if test "$abs_srcdir" != "$builddir"; then
1814 # Bootstrap the Makefile creation
1815 echo "include $abs_srcdir/Makefile" > "$builddir/Makefile"
1816 "$MAKE" "SRC=$abs_srcdir" init
1818 # Make cg-status ignore this build directory
1819 echo "*" > "$builddir/.gitignore"
1822 # ===================================================================
1823 # Configuration summary
1824 # ===================================================================
1826 AC_MSG_RESULT(The following feature summary has been saved to features.log)