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 AC_CHECK_FILE("$srcdir/$features", [ . $srcdir/$features ])
52 AC_CHECK_FILE("$builddir/$features", [ . $builddir/$features ])
53 echo "Feature summary:" > features.log
55 # ===================================================================
56 # Checks for programs.
57 # ===================================================================
61 AC_PATH_PROGS(AWK, "$AWK")
65 AC_PATH_PROGS(GIT, "git")
66 AC_PATH_PROGS(SPARSE, "sparse")
73 if test "x$CONFIG_DOC" != xno; then
74 AC_PATH_PROGS(PYTHON, "python")
75 if test "x$PYTHON" != "x"; then
76 EL_CONFIG(CONFIG_ASCIIDOC, [AsciiDoc])
77 EL_CONFIG(MANUAL_ASCIIDOC, [HTML (one file)])
78 EL_CONFIG(MAN_ASCIIDOC, [HTML])
81 AC_PATH_PROGS(XMLTO, "xmlto")
82 if test "x$XMLTO" != "x"; then
83 EL_CONFIG(CONFIG_XMLTO, [XmlTo])
84 EL_CONFIG(MANUAL_XMLTO, [HTML (multiple files)])
85 EL_CONFIG(MAN_XMLTO, [man (groff)])
88 AC_PATH_PROGS(JW, "jw")
89 if test "x$JW" != "x"; then
90 EL_CONFIG(CONFIG_JW, [JadeWrapper])
91 EL_CONFIG(MANUAL_JW, [PDF])
94 AC_PATH_PROGS(POD2HTML, "pod2html")
95 if test "x$POD2HTML" != "x"; then
96 EL_CONFIG(CONFIG_POD2HTML, [Pod2HTML])
99 AC_PATH_PROGS(DOXYGEN, "doxygen")
100 if test "x$DOXYGEN" != "x"; then
101 EL_CONFIG(CONFIG_DOXYGEN, [Doxygen])
102 api_srcdir="$(cd "$srcdir" && pwd)/src"
107 AC_SUBST(CONFIG_ASCIIDOC)
108 AC_SUBST(CONFIG_DOXYGEN)
109 AC_SUBST(CONFIG_POD2HTML)
110 AC_SUBST(CONFIG_XMLTO)
113 EL_CONFIG_DEPENDS(CONFIG_DOC, [CONFIG_ASCIIDOC CONFIG_XMLTO CONFIG_JW CONFIG_POD2HTML], [Documentation Tools])
114 EL_CONFIG_DEPENDS(CONFIG_MANUAL, [MANUAL_ASCIIDOC MANUAL_XMLTO MANUAL_JW], [Manual Formats])
115 EL_CONFIG_DEPENDS(CONFIG_MANPAGE, [MAN_ASCIIDOC MAN_XMLTO], [Man Page Formats])
116 EL_CONFIG_DEPENDS(CONFIG_APIDOCS, [CONFIG_DOXYGEN], [API Documentation])
118 # gcc specific options (to be continued at the bottom of configure)
119 if test "x$ac_cv_c_compiler_gnu" = "xyes"; then
120 # We want to see all warnings and live with none.
121 # We can't set up -Werror here as there may be some warnings in test
122 # suite of configure, and we don't want to fail them.
123 CFLAGS="$CFLAGS -Wall"
126 # ===================================================================
127 # Checks for special OSes.
128 # ===================================================================
130 dnl EL_CHECK_COMPILER_MACRO(define, name, flagname)
131 AC_DEFUN([EL_CHECK_COMPILER_MACROS],
133 AC_MSG_CHECKING([for $2])
136 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[#ifndef $flag
138 #endif ]])],[$1=yes],[$1=no])
139 if test "[$]$1" = yes; then
140 EL_CONFIG([$1], [$2])
148 EL_CHECK_COMPILER_MACROS(CONFIG_OS_BEOS, [BEOS], [__BEOS__])
149 AC_SUBST(CONFIG_OS_BEOS)
151 EL_CHECK_COMPILER_MACROS(CONFIG_OS_RISCOS, [RISCOS], [__riscos__])
152 AC_SUBST(CONFIG_OS_RISCOS)
154 EL_CHECK_COMPILER_MACROS(CONFIG_OS_WIN32, [WIN32], [_WIN32 __WIN32__])
155 AC_SUBST(CONFIG_OS_WIN32)
157 EL_CHECK_COMPILER_MACROS(CONFIG_OS_OS2, [EMX], [__EMX__])
158 AC_SUBST(CONFIG_OS_OS2)
159 test "$CONFIG_OS_OS2" = yes && LDFLAGS=`echo "$LDFLAGS" | sed "s/-Zexe//g"`
161 AC_MSG_CHECKING([for UNIX])
162 dnl FIXME: some depend kind of mechanism
163 if test "$CONFIG_OS_BEOS" = no && \
164 test "$CONFIG_OS_RISCOS" = no && \
165 test "$CONFIG_OS_WIN32" = no && \
166 test "$CONFIG_OS_OS2" = no; then
167 EL_CONFIG(CONFIG_OS_UNIX, [UNIX])
171 AC_MSG_RESULT($CONFIG_OS_UNIX)
172 AC_SUBST(CONFIG_OS_UNIX)
174 # ===================================================================
175 # Checks for header files.
176 # ===================================================================
183 AC_CHECK_HEADERS(wchar.h wctype.h)
184 AC_CHECK_HEADERS(fcntl.h limits.h time.h unistd.h)
185 AC_CHECK_HEADERS(sigaction.h)
186 AC_CHECK_HEADERS(arpa/inet.h)
187 AC_CHECK_HEADERS(netinet/in_systm.h netinet/in_system.h netinet/ip.h)
188 AC_CHECK_HEADERS(netdb.h netinet/in.h netinet/in6_var.h)
189 AC_CHECK_HEADERS(ifaddrs.h)
190 AC_CHECK_HEADERS(sys/cygwin.h io.h)
191 AC_CHECK_HEADERS(sys/fmutex.h)
192 AC_CHECK_HEADERS(sys/ioctl.h sys/sockio.h)
193 AC_CHECK_HEADERS(sys/resource.h)
194 AC_CHECK_HEADERS(sys/select.h)
195 AC_CHECK_HEADERS(sys/signal.h)
196 AC_CHECK_HEADERS(sys/socket.h)
197 AC_CHECK_HEADERS(sys/time.h)
198 AC_CHECK_HEADERS(sys/utsname.h)
199 AC_CHECK_HEADERS([net/if.h], [], [],
200 [[#ifdef HAVE_SYS_SOCKET_H
201 # include <sys/socket.h> /* <net/if.h> on Mac OS X 10.5.4 needs this */
204 AC_CHECK_HEADERS(stdint.h inttypes.h)
205 AC_CHECK_HEADERS(locale.h pwd.h)
206 AC_CHECK_HEADERS(termios.h)
209 AC_CHECK_HEADERS(sys/un.h,
210 [CONFIG_INTERLINK=yes
211 EL_CONFIG([CONFIG_INTERLINK], [interlinking])],
212 [CONFIG_INTERLINK=no])
213 AC_SUBST(CONFIG_INTERLINK)
215 # ===================================================================
216 # Checks for typedefs, structures, and compiler characteristics.
217 # ===================================================================
222 AC_MSG_CHECKING([[for C99-conforming inline]])
240 [AC_MSG_RESULT([[yes]])
241 AC_DEFINE([NONSTATIC_INLINE], [inline],
242 [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.])],
243 [AC_MSG_RESULT([[no]])
244 AC_DEFINE([NONSTATIC_INLINE], [])])
245 EL_CHECK_CODE(typeof, HAVE_TYPEOF, [], [int a; typeof(a) b;])
250 EL_CHECK_TYPE(ssize_t, int)
251 EL_CHECK_SYS_TYPE(long long, HAVE_LONG_LONG, [])
252 EL_CHECK_SYS_TYPE(off_t, HAVE_OFF_T, [])
253 EL_CHECK_INT_TYPE(int32_t, HAVE_INT32_T)
254 EL_CHECK_INT_TYPE(uint32_t, HAVE_UINT32_T)
255 EL_CHECK_INT_TYPE(uint16_t, HAVE_UINT16_T)
257 AC_CHECK_SIZEOF(char, 1)
258 AC_CHECK_SIZEOF(short, 2)
259 AC_CHECK_SIZEOF(int, 4)
260 AC_CHECK_SIZEOF(long, 4)
261 test "x$HAVE_LONG_LONG" = xyes && AC_CHECK_SIZEOF(long long, 8)
262 test "x$HAVE_OFF_T" = xyes && AC_CHECK_SIZEOF(off_t, 4)
264 # Check for variadic macros
265 EL_CHECK_CODE([variadic macros], HAVE_VARIADIC_MACROS,
267 #define a(b,c...) printf(b,##c)],
268 [a("foo");a("%s","bar");a("%s%s","baz","quux");])
270 # ===================================================================
271 # Checks for library functions.
272 # ===================================================================
274 AC_PROG_GCC_TRADITIONAL
278 AC_CHECK_FUNCS(atoll gethostbyaddr herror strerror)
279 AC_CHECK_FUNCS(popen uname access chmod alarm timegm mremap)
280 AC_CHECK_FUNCS(strcasecmp strncasecmp strcasestr strstr strchr strrchr)
281 AC_CHECK_FUNCS(memmove bcopy stpcpy strdup index isdigit mempcpy memrchr)
282 AC_CHECK_FUNCS(snprintf vsnprintf asprintf vasprintf)
283 AC_CHECK_FUNCS(getifaddrs getpwnam inet_pton inet_ntop)
284 AC_CHECK_FUNCS(fflush fsync fseeko ftello sigaction)
285 AC_CHECK_FUNCS(gettimeofday clock_gettime)
286 AC_CHECK_FUNCS(setitimer, HAVE_SETITIMER=yes)
288 AC_CHECK_FUNCS([cygwin_conv_to_full_win32_path])
290 AC_CHECK_FUNCS(setenv putenv, HAVE_SETENV_OR_PUTENV=yes)
291 AC_CHECK_FUNCS(unsetenv)
292 AC_CHECK_FUNCS(getuid, HAVE_GETUID=yes)
293 AC_CHECK_FUNCS(geteuid, HAVE_GETEUID=yes)
295 AC_CHECK_FUNCS(wcwidth, HAVE_WCWIDTH=yes)
297 # These aren't probably needed now, as they are commented in links.h.
298 # I've no idea about their historical background, but I keep them here
299 # just in the case they will help later. --pasky
300 AC_CHECK_FUNCS(getpid, HAVE_GETPID=yes)
301 AC_CHECK_FUNCS(setpgid getpgid setpgrp getpgrp)
302 AC_CHECK_FUNCS(raise, HAVE_RAISE=yes)
303 AC_CHECK_FUNCS(kill, HAVE_KILL=yes)
305 AC_CHECK_FUNCS(fpathconf, HAVE_FPATHCONF=yes)
307 if test x"$HAVE_RAISE" = x; then
308 if test x"$HAVE_KILL" = x || test x"$HAVE_GETPID" = x; then
309 AC_MSG_ERROR([Unable to emulate raise()])
313 AC_CACHE_CHECK([for __va_copy],el_cv_HAVE_VA_COPY,[
314 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
315 va_list ap1,ap2;]], [[__va_copy(ap1,ap2);]])],[el_cv_HAVE_VA_COPY=yes],[el_cv_HAVE_VA_COPY=no])])
316 if test x"$el_cv_HAVE_VA_COPY" = x"yes"; then
317 EL_DEFINE(HAVE_VA_COPY, __va_copy)
320 AC_CACHE_CHECK([for sysconf(_SC_PAGE_SIZE)],el_cv_HAVE_SC_PAGE_SIZE,[
321 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h>
322 ]], [[int page_size = sysconf(_SC_PAGE_SIZE);]])],[el_cv_HAVE_SC_PAGE_SIZE=yes],[el_cv_HAVE_SC_PAGE_SIZE=no])])
323 if test x"$el_cv_HAVE_SC_PAGE_SIZE" = x"yes"; then
324 EL_DEFINE(HAVE_SC_PAGE_SIZE, _SC_PAGE_SIZE)
327 AC_CACHE_CHECK([for C99 vsnprintf],el_cv_HAVE_C99_VSNPRINTF,[
328 AC_RUN_IFELSE([AC_LANG_SOURCE([[
336 int bar(char *buf, const char *format, va_list ap)
338 return vsnprintf(buf, 0, format, ap);
341 void foo(const char *format, ...) {
345 va_start(ap, format);
346 len = bar(buf, format, ap);
348 if ((len != 6) && (len != 7)) exit(1); /* \n -> \r\n */
350 va_start(ap, format);
351 len = bar(buf, format, ap);
353 if ((len != 6) && (len != 7)) exit(1);
355 if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) exit(1);
359 main() { foo("hello\n"); }
360 ]])],[el_cv_HAVE_C99_VSNPRINTF=yes],[el_cv_HAVE_C99_VSNPRINTF=no],[el_cv_HAVE_C99_VSNPRINTF=cross])])
361 if test x"$el_cv_HAVE_C99_VSNPRINTF" = x"yes"; then
362 EL_DEFINE(HAVE_C99_VSNPRINTF, [C99 compliant vsnprintf()])
365 # OpenSSL and Lua frequently need dlopen
366 AC_CHECK_LIB(dl, dlopen)
368 # ===================================================================
369 # Checks for libraries.
370 # ===================================================================
372 AC_CHECK_FUNC(socket, cf_result=yes, cf_result=no)
373 if test "$cf_result" = no; then
374 AC_CHECK_LIB(socket, socket)
377 AC_CHECK_FUNC(setsockopt, cf_result=yes, cf_result=no)
378 if test "$cf_result" = no; then
379 AC_CHECK_LIB(socket, setsockopt)
382 AC_CHECK_FUNC(gethostbyname, cf_result=yes, cf_result=no)
383 if test "$cf_result" = no; then
384 AC_CHECK_LIB(socket, gethostbyname, cf_result=yes, cf_result=no)
385 if test "$cf_result" = no; then
386 AC_CHECK_LIB(nsl, gethostbyname)
388 test -z "`echo $LIBS | grep -- -lsocket`" && LIBS="$LIBS -lsocket"
392 # ===================================================================
393 # Checks for packaging specific options.
394 # ===================================================================
396 AC_ARG_WITH(xterm, [ --with-xterm how to invoke the X terminal emulator],
397 [ if test "$withval" != no && test "$withval" != yes; then
398 AC_DEFINE_UNQUOTED(XTERM, "$withval", [How to invoke XTerm])
401 # ===================================================================
402 # Checks for a libraries, optional even if installed.
403 # ===================================================================
405 dnl EL_CHECK_OPTIONAL_LIBRARY(define, name, header, lib, function)
406 AC_DEFUN([EL_CHECK_OPTIONAL_LIBRARY],
408 AC_MSG_CHECKING([for $2 support])
410 if test "[$]$1" != no; then
413 if test -n "$withval" && test -d "$withval"; then
414 # Be a little more careful when setting
415 # include and lib directories. This way
416 # $withval will work when includes are
417 # there but the library is in the common
418 # /usr/lib ... Does the right thing when
419 # looking for gc on Debian.
420 if test -d "$withval/include"; then
421 CFLAGS="$CFLAGS -I$withval/include"
422 CPPFLAGS="$CPPFLAGS -I$withval/include"
424 CFLAGS="$CFLAGS -I$withval"
425 CPPFLAGS="$CPPFLAGS -I$withval"
427 if test -d "$withval/lib"; then
428 LDFLAGS="$LDFLAGS -L$withval/lib"
432 AC_CHECK_HEADERS([$3], [$1=yes], [$1=no; break;])
433 if test "[$]$1" = yes; then
434 AC_CHECK_LIB([$4], [$5], [$1=yes], [$1=no])
437 if test "[$]$1" = yes; then
438 EL_CONFIG([$1], [$2])
441 if test -n "[$]WITHVAL_$1" &&
442 test "[$]WITHVAL_$1" != xno; then
443 AC_MSG_ERROR([$2 not found])
448 AC_MSG_RESULT(disabled)
452 dnl EL_CONFIG_OPTIONAL_LIBRARY(define, name, header, lib, function, confhelp)
453 AC_DEFUN([EL_CONFIG_OPTIONAL_LIBRARY],
455 if test "x[$]$1" != xno; then $1=yes; fi
458 AC_ARG_WITH([$2], [$6], [WITHVAL_$1="[$]withval"])
459 if test "x[$]WITHVAL_$1" = xno; then $1=no; fi
460 if test "x[$]WITHVAL_$1" = xyes; then $1=yes; fi
462 EL_CHECK_OPTIONAL_LIBRARY([$1], [$2], [$3], [$4], [$5])
464 EL_LOG_CONFIG([$1], [$2], [])
467 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_GPM, gpm, gpm.h, gpm, Gpm_Open,
468 [ --without-gpm disable gpm (mouse) support])
470 # ELinks calls deflateInit2 with windowBits = MAX_WBITS | 32, to
471 # enable automatic decoding of both zlib and gzip headers. This
472 # feature was added in zlib 1.2.0.2; earlier versions return an error.
473 # The gzclearerr function was also added in zlib 1.2.0.2, so check for
474 # that, even though ELinks does not actually call gzclearerr.
475 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_GZIP, zlib, zlib.h, z, gzclearerr,
476 [ --without-zlib disable zlib support])
478 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_BZIP2, bzlib, bzlib.h, bz2, BZ2_bzReadOpen,
479 [ --without-bzlib disable bzlib support])
481 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_IDN, idn, idna.h, idn, stringprep_check_version,
482 [ --without-idn disable international domain names support])
484 if test "x${with_gc}" != xno; then
485 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_GC, gc, gc.h, gc, GC_init,
486 [ --with-gc enable Boehm's garbage collector])
489 # LZMA disabled by default, because of little usability and compilation problems
491 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_LZMA, lzma, lzma.h, lzma, lzma_code,
492 [ --with-lzma enable lzma encoding support])
494 # ===================================================================
495 # Check for GSSAPI, optional even if installed.
496 # ===================================================================
500 AC_ARG_WITH(gssapi, [ --with-gssapi enable GSSAPI support],
501 [ if test "x$withval" != xno; then enable_gssapi=yes; fi ])
503 AC_MSG_CHECKING([for GSSAPI])
505 if test "$enable_gssapi" = "yes"; then
507 GSSAPI_CFLAGS=`krb5-config --cflags gssapi`
508 GSSAPI_LIBS=`krb5-config --libs gssapi`
509 CFLAGS="$GSSAPI_CFLAGS $CFLAGS"
510 LIBS="$GSSAPI_LIBS $LIBS"
511 EL_CONFIG(CONFIG_GSSAPI, [GssApi])
516 AC_SUBST(CONFIG_GSSAPI)
518 # ===================================================================
519 # Bookmark and XBEL support
520 # ===================================================================
524 EL_ARG_ENABLE(CONFIG_BOOKMARKS, bookmarks, [Bookmarks],
525 [ --disable-bookmarks disable bookmark support])
527 # Check whether --enable-xbel or --disable-xbel was given.
528 if test "x${enable_xbel}" != xno; then
529 AC_CHECK_HEADERS(expat.h, HAVE_LIBEXPAT=yes, HAVE_LIBEXPAT=no)
531 if test "$HAVE_LIBEXPAT" = yes; then
532 AC_CHECK_LIB(expat, XML_ParserCreate, HAVE_LIBEXPAT=yes, HAVE_LIBEXPAT=no)
533 if test "$HAVE_LIBEXPAT" = yes; then
540 EL_ARG_DEPEND(CONFIG_XBEL_BOOKMARKS, xbel, [CONFIG_BOOKMARKS:yes HAVE_LIBEXPAT:yes],
542 [ --disable-xbel disable XBEL bookmark support (requires expat)])
544 if test "$CONFIG_XBEL_BOOKMARKS" != yes; then
548 # ===================================================================
549 # Checks for BSD sysmouse
550 # ===================================================================
552 HAVE_SYSMOUSE_HEADER="no"
554 # Either of these header files provides the (same) sysmouse interface
555 AC_CHECK_HEADERS(sys/consio.h machine/console.h, [HAVE_SYSMOUSE_HEADER="yes"])
557 # ===================================================================
559 # ===================================================================
561 if test "$CONFIG_OS_OS2" = yes; then
565 # ===================================================================
567 # ===================================================================
569 if test "$CONFIG_OS_WIN32" = yes; then
573 # ===================================================================
574 # Check for SEE (Simple Ecmascript Engine)
575 # ===================================================================
576 AC_ARG_WITH(see, [ --with-see enable Simple Ecmascript Engine (SEE) support],
577 [ if test "x$withval" != xno; then enable_see=yes; fi ])
579 # The following is probably bad, ugly and so on. Stolen from Guile's (1.4)
580 # GUILE_FLAGS but I really don't want to require people to have Guile in order
581 # to compile CVS. Also, the macro seems to be really stupid regarding searching
582 # for Guile in $PATH etc. --pasky
584 CONFIG_ECMASCRIPT_SEE=no
586 if test "$enable_see" = "yes"; then
587 if test -d "$withval"; then
588 SEE_PATH="$withval:$PATH"
593 AC_PATH_PROG(SEE_CONFIG, libsee-config, no, $SEE_PATH)
594 AC_MSG_CHECKING([for SEE (2.0.1131 or later)])
595 if test "$SEE_CONFIG" != no; then
597 SEE_LIBS="`$SEE_CONFIG --libs`"
598 SEE_CFLAGS="`$SEE_CONFIG --cppflags`"
599 CPPFLAGS="$SEE_CFLAGS $CPPFLAGS"
600 LIBS="$SEE_LIBS $LIBS_X"
601 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <see/see.h>]], [[#if SEE_VERSION_API_MAJOR < 2
604 ]])],[cf_result=yes],[cf_result=no])
606 if test "$cf_result" = yes; then
607 LIBS="$SEE_LIBS $LIBS"
608 EL_CONFIG(CONFIG_ECMASCRIPT_SEE, [SEE])
611 AC_MSG_RESULT($cf_result)
613 if test -n "$withval" && test "x$withval" != xno; then
614 AC_MSG_ERROR([SEE not found])
616 AC_MSG_WARN([SEE support disabled])
621 # ===================================================================
622 # Check for SpiderMonkey, optional even if installed.
623 # ===================================================================
625 AC_ARG_WITH(spidermonkey, [ --without-spidermonkey disable SpiderMonkey Mozilla JavaScript engine support],
626 [if test "$withval" = no; then disable_spidermonkey=yes; fi])
627 AC_MSG_CHECKING([for SpiderMonkey (1.5 RC3a or later)])
632 if test -z "$disable_spidermonkey"; then
633 if test ! -d "$withval"; then
636 for spidermonkeydir in "$withval" "" /usr /usr/local /opt/spidermonkey /opt/js; do
637 for spidermonkeyinclude in "/include" "/include/js" "/include/smjs" "/include/mozjs"; do
638 for spidermonkeylib in js smjs mozjs; do
639 if test "$cf_result" = no; then
640 SPIDERMONKEY_LIBS="-L$spidermonkeydir/lib -l$spidermonkeylib"
641 SPIDERMONKEY_CFLAGS="-I$spidermonkeydir$spidermonkeyinclude"
643 LIBS="$SPIDERMONKEY_LIBS $LIBS_X"
644 CFLAGS="$CFLAGS_X $SPIDERMONKEY_CFLAGS"
645 CPPFLAGS="$CPPFLAGS_X $SPIDERMONKEY_CFLAGS"
647 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#define XP_UNIX
648 #include <jsapi.h>]], [[JS_GetReservedSlot(NULL, NULL, 0, NULL)]])],[cf_result=yes],[cf_result=no])
655 AC_MSG_RESULT($cf_result)
656 CONFIG_SPIDERMONKEY="$cf_result"
657 if test "$cf_result" = "yes"; then
658 AC_CHECK_FUNCS([[JS_ReportAllocationOverflow]])
659 AC_CHECK_FUNCS(JS_SetBranchCallback)
660 AC_CHECK_FUNCS(JS_TriggerOperationCallback, HAVE_JS_TRIGGEROPERATIONCALLBACK=yes)
664 if test "x$CONFIG_SPIDERMONKEY" = xyes &&
665 test "x$CONFIG_ECMASCRIPT_SEE" != xyes; then
666 EL_CONFIG(CONFIG_ECMASCRIPT_SMJS, [SpiderMonkey document scripting])
668 CONFIG_ECMASCRIPT_SMJS=no
671 EL_CONFIG_DEPENDS(CONFIG_ECMASCRIPT, [CONFIG_ECMASCRIPT_SEE CONFIG_ECMASCRIPT_SMJS], [ECMAScript (JavaScript)])
672 AC_SUBST(CONFIG_ECMASCRIPT_SEE)
673 AC_SUBST(CONFIG_ECMASCRIPT_SMJS)
675 if test "x$CONFIG_ECMASCRIPT_SMJS" = xyes &&
676 test "x$HAVE_JS_TRIGGEROPERATIONCALLBACK" = xyes &&
677 test "x$HAVE_SETITIMER" = xyes; then
678 EL_CONFIG(CONFIG_ECMASCRIPT_SMJS_HEARTBEAT, [ECMAScript heartbeat support])
680 CONFIG_ECMASCRIPT_SMJS_HEARTBEAT=no
682 AC_SUBST(CONFIG_ECMASCRIPT_SMJS_HEARTBEAT)
685 # ===================================================================
686 # Optional Spidermonkey-based ECMAScript browser scripting
687 # ===================================================================
689 AC_ARG_ENABLE(sm-scripting,
690 [ --disable-sm-scripting ECMAScript browser scripting (requires Spidermonkey)],
691 [if test "$enableval" != no; then enableval="yes"; fi
692 CONFIG_SCRIPTING_SPIDERMONKEY="$enableval";])
694 if test "x$CONFIG_SPIDERMONKEY" = xyes &&
695 test "x$CONFIG_SCRIPTING_SPIDERMONKEY" = xyes; then
696 EL_CONFIG(CONFIG_SCRIPTING_SPIDERMONKEY, [SpiderMonkey])
698 CONFIG_SCRIPTING_SPIDERMONKEY=no
701 if test "x$CONFIG_ECMASCRIPT_SMJS" = xyes ||
702 test "x$CONFIG_SCRIPTING_SPIDERMONKEY" = xyes; then
703 LIBS="$LIBS $SPIDERMONKEY_LIBS"
704 AC_SUBST(SPIDERMONKEY_LIBS)
705 AC_SUBST(SPIDERMONKEY_CFLAGS)
706 AC_SUBST(CONFIG_SPIDERMONKEY)
709 # ===================================================================
710 # Check for Guile, optional even if installed.
711 # ===================================================================
715 AC_ARG_WITH(guile, [ --with-guile enable Guile support],
716 [ if test "x$withval" != xno; then enable_guile=yes; fi ])
718 # The following is probably bad, ugly and so on. Stolen from Guile's (1.4)
719 # GUILE_FLAGS but I really don't want to require people to have Guile in order
720 # to compile CVS. Also, the macro seems to be really stupid regarding searching
721 # for Guile in $PATH etc. --pasky
723 AC_MSG_CHECKING([for Guile])
725 if test "$enable_guile" = "yes"; then
727 ## Based on the GUILE_FLAGS macro.
729 if test -d "$withval"; then
730 GUILE_PATH="$withval:$PATH"
735 AC_PATH_PROG(GUILE_CONFIG, guile-config, no, $GUILE_PATH)
737 ## First, let's just see if we can find Guile at all.
738 if test "$GUILE_CONFIG" != no; then
741 GUILE_LIBS="`guile-config link`"
742 GUILE_CFLAGS="`guile-config compile`"
743 LIBS="$GUILE_LIBS $LIBS"
744 EL_CONFIG(CONFIG_SCRIPTING_GUILE, [Guile])
745 AC_SUBST(GUILE_CFLAGS)
747 ***********************************************************************
748 The Guile support is incomplete and not so well integrated to ELinks
749 yet. That means, e.g., that you have no Guile console and there might
750 not be all the necessary hooks. Also, the Guile interface is not too
751 well tested (success stories heartily welcomed!). See
752 src/scripting/guile/README for further details and hints.
753 ***********************************************************************
756 if test -n "$withval" && test "x$withval" != xno; then
757 AC_MSG_ERROR([Guile not found])
759 AC_MSG_WARN([Guile support disabled])
766 # ===================================================================
768 # ===================================================================
771 AC_ARG_WITH(perl, [ --with-perl enable Perl support],
773 if test "$withval" = yes; then
774 # FIXME: If withval is a valid directory append it to PATH
775 # so that you can specify one of several perl installations.
781 AC_MSG_CHECKING([for Perl])
787 if test "$enable_perl" = "yes"; then
788 PERL_LIBS="`perl -MExtUtils::Embed -e ldopts`"
789 PERL_CFLAGS="`perl -MExtUtils::Embed -e ccopts`"
790 LIBS="$PERL_LIBS $LIBS"
791 CFLAGS="$PERL_CFLAGS $CFLAGS"
792 CPPFLAGS="$CPPFLAGS $PERL_CFLAGS"
793 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
797 ]], [[PerlInterpreter *my_perl = perl_alloc();]])],[cf_result=yes],[cf_result=no])
800 if test "$cf_result"; then AC_MSG_RESULT($cf_result); fi
802 AC_MSG_CHECKING([whether POPpx works without an n_a variable])
803 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
806 extern PerlInterpreter *my_perl;
807 ]], [[dSP; (void) POPpx;]])],[AC_MSG_RESULT([yes])
808 AC_DEFINE([CONFIG_PERL_POPPX_WITHOUT_N_A], [1],
809 [Define if using Perl 5.8.8 or later, where the "POPpx" macro
810 no longer needs an "n_a" variable like it did in 5.8.7])],[AC_MSG_RESULT([no])])
812 if test "$cf_result" != "yes"; then
815 EL_CONFIG(CONFIG_SCRIPTING_PERL, [Perl])
818 CPPFLAGS="$CPPFLAGS_X"
820 AC_SUBST(PERL_CFLAGS)
823 # ===================================================================
825 # ===================================================================
828 AC_ARG_WITH(python, [[ --with-python[=DIR] enable Python support]],
829 [ if test "x$withval" != xno; then enable_python=yes; fi ])
834 AC_MSG_CHECKING([for Python])
836 if test "$enable_python" = "yes"; then
839 if test -d "$withval"; then
840 PYTHON_PATH="$withval:$PATH"
845 AC_PATH_PROG(PYTHON, python, no, $PYTHON_PATH)
847 if test "$PYTHON" != no; then
850 PYTHON_CFLAGS="`$PYTHON -c 'from distutils import sysconfig; print "-I%s -I%s" % (sysconfig.get_python_inc(), sysconfig.get_python_inc(plat_specific=True))'`"
851 PYTHON_LIBS="`$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"))'`"
852 LIBS="$PYTHON_LIBS $LIBS"
853 CPPFLAGS="$CPPFLAGS $PYTHON_CFLAGS"
854 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <Python.h>]], [[Py_Initialize();]])],[cf_result=yes],[cf_result=no])
856 if test "$cf_result" != "yes"; then
859 EL_CONFIG(CONFIG_SCRIPTING_PYTHON, [Python])
860 AC_SUBST(PYTHON_LIBS)
861 AC_SUBST(PYTHON_CFLAGS)
862 CPPFLAGS="$CPPFLAGS_X"
864 ***********************************************************************
865 The Python support is incomplete and not so well integrated to ELinks
866 yet. That means, e.g., that you have no Python console and there might
867 not be all the necessary hooks. Also, the Python interface is not too
868 well tested (success stories heartily welcomed!).
869 ***********************************************************************
873 if test -n "$withval" && test "x$withval" != xno; then
874 AC_MSG_ERROR([Python not found])
876 AC_MSG_WARN([Python support disabled])
884 # ===================================================================
885 # Check for Lua, optional even if installed.
886 # ===================================================================
888 # Do this the long way, as FreeBSD reportedly needs -L<dir> for
889 # anything other than /usr/lib, and Lua is very often in /usr/local/lib.
891 AC_ARG_WITH(lua, [ --without-lua disable Lua support],
892 [if test "$withval" = no; then disable_lua=yes; fi])
893 AC_MSG_CHECKING([for Lua])
898 if test -z "$disable_lua"; then
899 if test ! -d "$withval"; then
902 for luadir in "$withval" "" /usr /usr/local; do
903 for suffix in "" 50; do
904 if test "$cf_result" = no && ( test -f "$luadir/include/lua.h" || \
905 test -f "$luadir/include/lua$suffix/lua.h" ) ; then
906 LUA_LIBS="-L$luadir/lib -llua$suffix -llualib$suffix -lm"
907 LUA_CFLAGS="-I$luadir/include -I$luadir/include/lua$suffix"
909 LIBS="$LUA_LIBS $LIBS_X"
910 CFLAGS="$CFLAGS_X $LUA_CFLAGS"
911 CPPFLAGS="$CPPFLAGS_X $LUA_CFLAGS"
913 # Check that it is a compatible Lua version
914 AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <lua.h>
915 #include <lualib.h>]], [[ lua_State *L = lua_open();
921 lua_pushboolean(L, 1);
922 lua_close(L);]])],[cf_result=yes],[cf_result=no])
928 AC_MSG_RESULT($cf_result)
930 if test "$cf_result" != yes; then
933 EL_CONFIG(CONFIG_SCRIPTING_LUA, [Lua])
934 AC_CHECK_HEADERS(lauxlib.h)
937 CPPFLAGS="$CPPFLAGS_X"
942 # ===================================================================
943 # Check for TRE library
944 # ===================================================================
946 # This section only checks that --without-tre is not given and the
947 # library seems to work, and sets TRE_CFLAGS, TRE_LIBS, and
948 # tre_log. It does not define CONFIG_TRE, and always resets
949 # LIBS and CFLAGS back to their original values.
951 # After any --enable-utf-8 and --disable-utf-8 options have been
952 # handled, a separate section decides whether to actually use TRE.
954 # tre version 0.8.0 or higher is required which have the "tre_" prefix
957 AC_ARG_WITH([[tre]], [[ --without-tre disable TRE regex search support]])
958 if test "$with_tre" = no; then
959 AC_MSG_CHECKING([[for TRE]])
960 AC_MSG_RESULT([[disabled]])
961 tre_log="no (explicitly disabled)"
963 AC_MSG_CHECKING([[for TRE in pkg-config]])
964 if pkg-config tre; then
965 TRE_CFLAGS=`pkg-config --cflags tre`
966 TRE_LIBS=`pkg-config --libs tre`
967 AC_MSG_RESULT([[yes]])
969 # <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513055>
970 # "libtre-dev: /usr/lib/pkgconfig/tre.pc missing"
971 # so we look for the library even if pkg-config doesn't know about it.
974 AC_MSG_RESULT([[no, but let's try defaults]])
977 AC_MSG_CHECKING([[for TRE header and library]])
979 CFLAGS="$TRE_CFLAGS $CFLAGS"
980 LIBS="$TRE_LIBS $LIBS" # must be first, because of regfree conflict
981 AC_TRY_LINK([#include <tre/tre.h>],
984 tre_regwcomp(&re, L"zap", REG_ICASE);
985 tre_regwexec(&re, L"ELIZAPROGRAM", 1, match, 0);],
986 [AC_MSG_RESULT([[yes]])
987 tre_log="available"],
988 [AC_MSG_RESULT([[no]])
989 tre_log="no (TRE not found)"])
993 # ===================================================================
994 # Check for Ruby, optional even if installed.
995 # ===================================================================
997 EL_CONFIG_SCRIPTING_RUBY
999 # ===================================================================
1000 # Setup global scripting
1001 # ===================================================================
1003 EL_CONFIG_DEPENDS(CONFIG_SCRIPTING, [CONFIG_SCRIPTING_GUILE CONFIG_SCRIPTING_LUA CONFIG_SCRIPTING_PERL CONFIG_SCRIPTING_PYTHON CONFIG_SCRIPTING_RUBY CONFIG_SCRIPTING_SPIDERMONKEY], [Browser scripting])
1004 AC_SUBST(CONFIG_SCRIPTING_GUILE)
1005 AC_SUBST(CONFIG_SCRIPTING_LUA)
1006 AC_SUBST(CONFIG_SCRIPTING_PERL)
1007 AC_SUBST(CONFIG_SCRIPTING_PYTHON)
1008 AC_SUBST(CONFIG_SCRIPTING_RUBY)
1009 AC_SUBST(CONFIG_SCRIPTING_SPIDERMONKEY)
1010 AC_SUBST(CONFIG_SCRIPTING)
1013 # ===================================================================
1014 # Check for SSL support.
1015 # ===================================================================
1017 # We by default use OpenSSL, and we always prefer it. However, when GNUTLS
1018 # is enabled, we won't try to use OpenSSL anymore.
1020 # For wiping SSL hooks..
1023 chosen_ssl_library=""
1025 AC_ARG_WITH(gnutls, [[ --without-gnutls disable GNUTLS SSL support]])
1026 AC_ARG_WITH(gnutls, [[ --with-gnutls enable GNUTLS SSL support]],
1027 [case "$with_gnutls" in
1029 "yes") chosen_ssl_library="GNUTLS" ;;
1030 *) chosen_ssl_library="GNUTLS"
1031 AC_MSG_WARN([[Support for --with-gnutls=DIR has been removed.
1032 You may have to set the PKG_CONFIG_PATH environment variable instead.]]) ;;
1035 AC_ARG_WITH(openssl, [[ --without-openssl disable OpenSSL support]])
1036 AC_ARG_WITH(openssl, [[ --with-openssl[=DIR] enable OpenSSL support (default)]],
1037 [case "$with_openssl" in
1039 *) chosen_ssl_library="OpenSSL" ;;
1042 AC_ARG_WITH(nss_compat_ossl, [[ --with-nss_compat_ossl[=DIR]
1043 NSS compatibility SSL libraries/include files]],
1044 [case "$with_nss_compat_ossl" in
1046 *) chosen_ssl_library="nss_compat_ossl" ;;
1049 # ---- nss_compat_ossl
1051 if test "$with_nss_compat_ossl" = no; then
1052 # explicitly disabled
1054 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "nss_compat_ossl"; then
1055 # not used, because $chosen_ssl_library was chosen
1057 elif test -z "${with_nss_compat_ossl+set}"; then
1058 # SSL_library_init() in nss_compat_ossl 0.9.2 calls exit(1)
1059 # with no error message if there is no certificate database.
1060 # https://bugzilla.redhat.com/show_bug.cgi?id=463437
1061 # So ELinks uses nss_compat_ossl only if explicitly requested.
1065 if test "$with_nss_compat_ossl" = yes; then
1066 if pkg-config nss; then
1067 CFLAGS="$CFLAGS_X `pkg-config --cflags nss`"
1068 LIBS="$LIBS_X `pkg-config --libs nss`"
1070 with_nss_compat_ossl=no
1073 # Without pkg-config, we'll kludge in some defaults
1074 CFLAGS="$CFLAGS_X -I$with_nss_compat_ossl/include -I/usr/include/nss3 -I/usr/include/nspr4"
1075 LIBS="$LIBS_X -L$with_nss_compat_ossl/lib -lssl3 -lsmime3 -lnss3 -lplds4 -lplc4 -lnspr4 -lpthread -ldl"
1077 AC_CHECK_HEADERS(nss_compat_ossl/nss_compat_ossl.h,, [with_nss_compat_ossl=no], [#define NSS_COMPAT_OSSL_H])
1078 AC_CHECK_LIB(nss_compat_ossl, X509_free,, [with_nss_compat_ossl=no])
1080 if test "$with_nss_compat_ossl" = "no"; then
1083 LIBS="$LIBS -lnss_compat_ossl"
1084 EL_CONFIG(CONFIG_NSS_COMPAT_OSSL, [nss_compat_ossl])
1085 chosen_ssl_library="nss_compat_ossl"
1091 AC_MSG_CHECKING([for OpenSSL])
1095 if test "$with_openssl" = no; then
1096 cf_result="explicitly disabled"
1098 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "OpenSSL"; then
1099 cf_result="not used, because $chosen_ssl_library was chosen"
1103 for ssldir in "$with_openssl" "" /usr /usr/local/openssl \
1104 /usr/lib/openssl /usr/local/ssl \
1105 /usr/local/www /usr/lib/ssl /usr/local \
1106 /usr/pkg /opt /opt/openssl; do
1107 if test "$cf_result" = no; then
1108 if test -d "$ssldir"; then
1109 OPENSSL_CFLAGS="-I$ssldir/include"
1110 LIBS="-L$ssldir/lib -lssl -lcrypto $LIBS_X"
1111 CFLAGS="$CFLAGS_X $OPENSSL_CFLAGS"
1112 CPPFLAGS="$CPPFLAGS_X $OPENSSL_CFLAGS"
1113 # # FIXME: This created serious portability problems. --pasky
1114 # if test "$CC" == "gcc"; then
1115 # # I'm not sure about compatibility here. --pasky
1116 # LIBS="$LIBS -R$ssldir/lib"
1119 LIBS="-lssl -lcrypto $LIBS_X"
1121 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <openssl/ssl.h>]], [[OpenSSL_add_all_algorithms()]])],[cf_result=yes],[cf_result=no])
1122 if test "$cf_result" != yes; then
1123 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <openssl/ssl.h>]], [[SSLeay_add_ssl_algorithms()]])],[cf_result=yes],[cf_result=no])
1128 if test "$cf_result" != yes; then
1129 if test "${with_openssl-no}" != "no"; then
1130 AC_MSG_ERROR([OpenSSL not found])
1134 EL_CONFIG(CONFIG_OPENSSL, [OpenSSL])
1135 chosen_ssl_library="OpenSSL"
1138 AC_SUBST(OPENSSL_CFLAGS)
1142 AC_MSG_RESULT($cf_result)
1146 # GnuTLS 2.2.0 changed libgnutls-openssl from GPLv2+
1147 # to GPLv3+. Don't link that with the GPLv2 ELinks.
1148 # ELinks will use its internal MD5 code instead.
1149 CONFIG_GNUTLS_OPENSSL_COMPAT=no
1151 if test "$with_gnutls" = no; then
1152 AC_MSG_CHECKING([[for GNUTLS]])
1153 AC_MSG_RESULT([[explicitly disabled]])
1155 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "GNUTLS"; then
1156 AC_MSG_CHECKING([[for GNUTLS]])
1157 AC_MSG_RESULT([[not used, because $chosen_ssl_library was chosen]])
1161 AC_MSG_CHECKING([[for GNUTLS (1.2 or later) in pkg-config]])
1162 if pkg-config --atleast-version=1.2 gnutls; then
1163 GNUTLS_CFLAGS=`pkg-config --cflags gnutls`
1164 GNUTLS_LIBS=`pkg-config --libs gnutls`
1165 AC_MSG_RESULT([[yes: $GNUTLS_CFLAGS $GNUTLS_LIBS]])
1168 LIBS="$GNUTLS_LIBS $LIBS"
1169 CFLAGS="$CFLAGS $GNUTLS_CFLAGS"
1170 CPPFLAGS="$CPPFLAGS $GNUTLS_CFLAGS"
1172 # Verify if it's really usable. gnutls_session was
1173 # renamed to gnutls_session_t before GNU TLS 1.2.0
1174 # (on 2004-06-13); ELinks now requires this.
1175 AC_MSG_CHECKING([[whether GNUTLS can be linked with]])
1176 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <gnutls/gnutls.h>]],
1177 [[gnutls_session_t dummy;
1178 gnutls_check_version(NULL)]])],
1181 AC_MSG_RESULT([[$cf_result]])
1183 if test "$cf_result" = yes; then
1184 # According to gnutls/NEWS, the function was originally
1185 # added as gnutls_set_default_priority2 in GNUTLS 2.1.4
1186 # (released 2007-10-27) and then renamed to
1187 # gnutls_priority_set_direct in GNUTLS 2.1.7 (released
1189 AC_CHECK_FUNCS([gnutls_priority_set_direct])
1194 AC_MSG_RESULT([[$cf_result]])
1197 if test "$cf_result" = yes; then
1198 EL_CONFIG(CONFIG_GNUTLS, [GNUTLS])
1199 chosen_ssl_library="GNUTLS"
1201 LIBS="$GNUTLS_LIBS $LIBS"
1202 AC_SUBST(GNUTLS_CFLAGS)
1204 elif test "${with_gnutls-no}" != "no"; then
1205 AC_MSG_ERROR([[GNUTLS (1.2 or later) not found. ELinks no longer supports GNUTLS 1.1.]])
1211 EL_CONFIG_DEPENDS(CONFIG_SSL, [CONFIG_OPENSSL CONFIG_GNUTLS CONFIG_NSS_COMPAT_OSSL], [SSL])
1212 AC_SUBST(CONFIG_GNUTLS_OPENSSL_COMPAT)
1213 AC_SUBST(CONFIG_OPENSSL)
1214 AC_SUBST(CONFIG_GNUTLS)
1215 AC_SUBST(CONFIG_NSS_COMPAT_OSSL)
1219 AC_MSG_CHECKING([whether to be or not to be])
1220 AC_MSG_RESULT([needs to be determined experimentally])
1222 # ===================================================================
1223 # Check for IPv6 support and related functions.
1224 # ===================================================================
1226 EL_CHECK_NET_TYPE(struct sockaddr_storage, HAVE_SA_STORAGE, [])
1227 EL_CHECK_NET_TYPE(struct sockaddr_in6, HAVE_SA_IN6, [#include <netinet/in.h>])
1228 EL_CHECK_NET_TYPE(struct addrinfo, HAVE_ADDRINFO, [#include <netdb.h>])
1230 AC_CHECK_FUNC(getaddrinfo, HAVE_GETADDRINFO=yes, HAVE_GETADDRINFO=no)
1231 if test "$HAVE_GETADDRINFO" != yes; then
1232 AC_CHECK_LIB(inet6, getaddrinfo, HAVE_GETADDRINFO=yes, HAVE_GETADDRINFO=no)
1233 if test "$HAVE_GETADDRINFO" = yes; then
1234 LIBS="$LIBS -linet6"
1239 # ===================================================================
1240 # Checking for X11 (window title restoring).
1241 # ===================================================================
1244 if test x"$no_x" != xyes; then
1246 if test -n "$x_includes"; then
1247 X_CFLAGS="-I$x_includes"
1248 CPPFLAGS="$CPPLAGS $X_CFLAGS"
1249 CFLAGS="$CFLAGS $X_CFLAGS"
1251 if test -n "$x_libraries"; then
1252 LDFLAGS="$LDFLAGS -L$x_libraries"
1255 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]], [[XrmInitialize()]])],[cf_result=yes],[cf_result=no])
1257 if test "$cf_result" = yes; then
1258 if test -n "$x_libraries"; then
1259 LDFLAGS="$LDFLAGS -L$x_libraries"
1262 EL_DEFINE(HAVE_X11, [X11 for restoring window titles])
1268 # ===================================================================
1269 # Backtraces displaying support.
1270 # ===================================================================
1272 AC_CHECK_HEADERS(execinfo.h, HAVE_EXECINFO=yes, HAVE_EXECINFO=no)
1273 # possible checks for other system-specific means go here
1276 # ===================================================================
1277 # Gettext grey zone. Beware.
1278 # ===================================================================
1280 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"
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 "$cf_result" = "yes"; then
1657 AC_DEFINE([HAVE_ALLOCA])
1658 AC_DEFINE([_ALLOCA_H], [1], [Define as 1 if you are using Tiny C Compiler
1659 with the GNU C Library, and <alloca.h> of glibc would otherwise
1660 override the alloca macro defined in <stddef.h> of TCC.
1661 If <alloca.h> of glibc sees the _ALLOCA_H macro, it assumes
1662 it has already been included, and does not redefine alloca.
1663 This might not work in future glibc versions though, because
1664 the names of the #include guard macros are not documented.
1665 The incompatibility has been reported to the tinycc-devel
1666 mailing list on 2008-07-14. If a future version of TCC provides
1667 an <alloca.h> of its own, this hack won't be needed.])
1669 # ===================================================================
1670 # A little fine tuning of gcc specific options (continued)
1671 # ===================================================================
1673 if test "x$ac_cv_c_compiler_gnu" = "xyes"; then
1674 if test "$CONFIG_DEBUG" = "yes"; then
1675 # We want to see all warnings and live with none (in debug mode).
1676 CFLAGS="$CFLAGS -Werror"
1679 case "`$CC -dumpversion`" in
1681 # These should be ok using -Werror
1684 # If gcc is version 3.3 (or higher?) it emits lots of false positive
1685 # "dereferencing type-punned pointer will break strict-aliasing rules"
1686 # warnings. Disable them by not doing any strict-aliasing. The
1687 # alternative is just too ugly. Thanks gcc guys!! ;)
1688 CFLAGS="$CFLAGS -fno-strict-aliasing"
1691 # Do not show warnings related to (char * | unsigned char *) type
1693 CFLAGS="$CFLAGS -fno-strict-aliasing -Wno-pointer-sign"
1696 # These should be ok using -Werror
1700 # GCC 4.2.1 warns if we use the address of an object in Boolean context:
1701 # warning: the address of `builtin_modules' will always evaluate as `true'
1702 # This hits the object_lock and foreach_module macros in particular.
1703 # It would be okay to put something in the macros to avoid the warning,
1704 # but currently this seems to require defining parallel macros that skip
1705 # the NULL check, and that's too ugly. So we instead disable the warning.
1706 # GCC 4.2.1 needs -Wno-address, but GCC 4.2 snapshots need -Wno-always-true.
1707 # GCC 4.1.3 recognizes neither and exits with code 1 if they are given.
1708 for warning_flag in -Wno-address -Wno-always-true; do
1709 AC_MSG_CHECKING([whether $CC accepts $warning_flag])
1711 CFLAGS="$CFLAGS $warning_flag"
1712 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1713 [AC_MSG_RESULT([yes])
1715 [AC_MSG_RESULT([no])])
1719 # Bug 1012: Some parts of ELinks do arithmetic with signed integers
1720 # in such a way that an overflow is possible. GCC 4.2.1 warns
1721 # "warning: assuming signed overflow does not occur when assuming
1722 # that (X + c) > X is always true", which may be an incorrect
1723 # optimization (although allowed by the standard), and breaks the
1724 # build with -Werror.
1726 # All of the following tests included -S -Wall -Wextra:
1728 # GCC: (GNU) 4.0.4 20060507 (prerelease) (Debian 4.0.3-3)
1729 # * gcc-4.0 -O0: OK, compares the values
1730 # * gcc-4.0 -O2: assumes no overflow, does not warn
1731 # * gcc-4.0 -O0 -fno-strict-overflow: unrecognized command line option
1732 # * gcc-4.0 -O0 -fwrapv: OK, compares the values
1733 # * gcc-4.0 -O2 -fwrapv: OK, compares the values
1734 # * gcc-4.0 -O0 -ftrapv: OK, calls __addvsi3
1735 # * gcc-4.0 -O2 -ftrapv: assumes no overflow, does not warn
1736 # * gcc-4.0 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1737 # * gcc-4.0 -O2 -fwrapv -ftrapv: compares the values
1739 # GCC: (GNU) 4.1.3 20070812 (prerelease) (Debian 4.1.2-15)
1740 # * gcc-4.1 -O0: assumes no overflow, does not warn
1741 # * gcc-4.1 -O2: assumes no overflow, does not warn
1742 # * gcc-4.1 -O0 -fno-strict-overflow: unrecognized command line option
1743 # * gcc-4.1 -O0 -fwrapv: OK, compares the values
1744 # * gcc-4.1 -O2 -fwrapv: OK, compares the values
1745 # * gcc-4.1 -O0 -ftrapv: OK, calls __addvsi3
1746 # * gcc-4.1 -O2 -ftrapv: compares the values
1747 # * gcc-4.1 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1748 # * gcc-4.1 -O2 -fwrapv -ftrapv: compares the values
1750 # GCC: (GNU) 4.2.1 (Debian 4.2.1-5)
1751 # * gcc-4.2 -O0: OK, compares the values
1752 # * gcc-4.2 -O2: assumes no overflow, warns about it
1753 # * gcc-4.2 -O0 -fno-strict-overflow: OK, compares the values
1754 # * gcc-4.2 -O2 -fno-strict-overflow: OK, compares the values
1755 # * gcc-4.2 -O0 -fwrapv: OK, compares the values
1756 # * gcc-4.2 -O2 -fwrapv: OK, compares the values
1757 # * gcc-4.2 -O0 -ftrapv: OK, calls __addvsi3
1758 # * gcc-4.2 -O2 -ftrapv: compares the values
1759 # * gcc-4.2 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1760 # * gcc-4.2 -O2 -fwrapv -ftrapv: compares the values
1762 # Apparently, -ftrapv does not work reliably at all.
1763 for overflow_flag in -fno-strict-overflow -fwrapv; do
1764 AC_MSG_CHECKING([whether $CC accepts $overflow_flag])
1766 CFLAGS="$CFLAGS $overflow_flag"
1767 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1768 [AC_MSG_RESULT([yes])
1770 [AC_MSG_RESULT([no])])
1775 EL_LOG_CONFIG(CFLAGS, [Compiler flags (CFLAGS)], [])
1776 EL_LOG_CONFIG(CPPFLAGS, [Preprocessor flags (CPPFLAGS)], [])
1777 EL_LOG_CONFIG(LDFLAGS, [Linker flags (LDFLAGS)], [])
1778 EL_LOG_CONFIG(LIBS, [Library flags (LIBS)], [])
1780 # ===================================================================
1781 # Colored make output
1782 # ===================================================================
1784 if test $(`which tput` colors) -ge 4; then
1786 AC_SUBST(MAKE_COLOR)
1789 # ===================================================================
1791 # ===================================================================
1795 contrib/elinks.spec \
1796 contrib/lua/hooks.lua \
1797 contrib/conv/w3m2links.awk \
1799 doc/man/man1/elinks.1 \
1800 src/intl/gettext/ref-add.sed \
1801 src/intl/gettext/ref-del.sed
1805 abs_srcdir="$(cd "$srcdir" && pwd)"
1806 # builddir is always absolute!
1807 if test "$abs_srcdir" != "$builddir"; then
1808 # Bootstrap the Makefile creation
1809 echo "include $abs_srcdir/Makefile" > "$builddir/Makefile"
1810 "$MAKE" "SRC=$abs_srcdir" init
1812 # Make cg-status ignore this build directory
1813 echo "*" > "$builddir/.gitignore"
1816 # ===================================================================
1817 # Configuration summary
1818 # ===================================================================
1820 AC_MSG_RESULT(The following feature summary has been saved to features.log)