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 # ===================================================================
627 AC_ARG_WITH(xulrunner_includes, [ --with-xulrunner_includes=DIR
628 When set, the libmozjs of xulrunner is used instead of "standalone" SpiderMonkey],
629 [xulrunner_includes="$withval"])
630 AC_ARG_WITH(xulrunner_libs, [ --with-xulrunner_libs=OPTIONS
631 Linker options for xulrunner,
632 eg. --with-xulrunner_libs="-Wl,-R/usr/lib/xulrunner -L/usr/lib/xulrunner -lmozjs"],
633 [xulrunner_libs="$withval"])
634 AC_ARG_WITH(spidermonkey, [ --without-spidermonkey disable SpiderMonkey Mozilla JavaScript engine support],
635 [if test "$withval" = no; then disable_spidermonkey=yes; fi])
637 AC_MSG_CHECKING([for SpiderMonkey (1.5 RC3a or later)])
642 if test -z "$disable_spidermonkey"; then
643 if test ! -d "$withval"; then
646 if test ! -z "$xulrunner_includes"; then
647 SPIDERMONKEY_LIBS="$xulrunner_libs"
648 SPIDERMONKEY_CFLAGS="-I$xulrunner_includes"
649 LIBS="$SPIDERMONKEY_LIBS $LIBS_X"
650 CFLAGS="$CFLAGS_X $SPIDERMONKEY_CFLAGS"
651 CPPFLAGS="$CPPFLAGS_X $SPIDERMONKEY_CFLAGS"
653 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#define XP_UNIX
654 #include <jsapi.h>]], [[JS_GetReservedSlot(NULL, NULL, 0, NULL)]])],[cf_result=yes],[cf_result=no])
656 for spidermonkeydir in "$withval" "" /usr /usr/local /opt/spidermonkey /opt/js; do
657 for spidermonkeyinclude in "/include" "/include/js" "/include/smjs" "/include/mozjs"; do
658 for spidermonkeylib in js smjs mozjs; do
659 if test "$cf_result" = no; then
660 SPIDERMONKEY_LIBS="-L$spidermonkeydir/lib -l$spidermonkeylib"
661 SPIDERMONKEY_CFLAGS="-I$spidermonkeydir$spidermonkeyinclude"
663 LIBS="$SPIDERMONKEY_LIBS $LIBS_X"
664 CFLAGS="$CFLAGS_X $SPIDERMONKEY_CFLAGS"
665 CPPFLAGS="$CPPFLAGS_X $SPIDERMONKEY_CFLAGS"
667 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#define XP_UNIX
668 #include <jsapi.h>]], [[JS_GetReservedSlot(NULL, NULL, 0, NULL)]])],[cf_result=yes],[cf_result=no])
676 AC_MSG_RESULT($cf_result)
677 CONFIG_SPIDERMONKEY="$cf_result"
678 if test "$cf_result" = "yes"; then
679 AC_CHECK_FUNCS([[JS_ReportAllocationOverflow]])
680 AC_CHECK_FUNCS(JS_SetBranchCallback)
681 AC_CHECK_FUNCS(JS_TriggerOperationCallback, HAVE_JS_TRIGGEROPERATIONCALLBACK=yes)
685 if test "x$CONFIG_SPIDERMONKEY" = xyes &&
686 test "x$CONFIG_ECMASCRIPT_SEE" != xyes; then
687 EL_CONFIG(CONFIG_ECMASCRIPT_SMJS, [SpiderMonkey document scripting])
689 CONFIG_ECMASCRIPT_SMJS=no
692 EL_CONFIG_DEPENDS(CONFIG_ECMASCRIPT, [CONFIG_ECMASCRIPT_SEE CONFIG_ECMASCRIPT_SMJS], [ECMAScript (JavaScript)])
693 AC_SUBST(CONFIG_ECMASCRIPT_SEE)
694 AC_SUBST(CONFIG_ECMASCRIPT_SMJS)
696 if test "x$CONFIG_ECMASCRIPT_SMJS" = xyes &&
697 test "x$HAVE_JS_TRIGGEROPERATIONCALLBACK" = xyes &&
698 test "x$HAVE_SETITIMER" = xyes; then
699 EL_CONFIG(CONFIG_ECMASCRIPT_SMJS_HEARTBEAT, [ECMAScript heartbeat support])
701 CONFIG_ECMASCRIPT_SMJS_HEARTBEAT=no
703 AC_SUBST(CONFIG_ECMASCRIPT_SMJS_HEARTBEAT)
706 # ===================================================================
707 # Optional Spidermonkey-based ECMAScript browser scripting
708 # ===================================================================
710 AC_ARG_ENABLE(sm-scripting,
711 [ --disable-sm-scripting ECMAScript browser scripting (requires Spidermonkey)],
712 [if test "$enableval" != no; then enableval="yes"; fi
713 CONFIG_SCRIPTING_SPIDERMONKEY="$enableval";])
715 if test "x$CONFIG_SPIDERMONKEY" = xyes &&
716 test "x$CONFIG_SCRIPTING_SPIDERMONKEY" = xyes; then
717 EL_CONFIG(CONFIG_SCRIPTING_SPIDERMONKEY, [SpiderMonkey])
719 CONFIG_SCRIPTING_SPIDERMONKEY=no
722 if test "x$CONFIG_ECMASCRIPT_SMJS" = xyes ||
723 test "x$CONFIG_SCRIPTING_SPIDERMONKEY" = xyes; then
724 LIBS="$LIBS $SPIDERMONKEY_LIBS"
725 AC_SUBST(SPIDERMONKEY_LIBS)
726 AC_SUBST(SPIDERMONKEY_CFLAGS)
727 AC_SUBST(CONFIG_SPIDERMONKEY)
730 # ===================================================================
731 # Check for Guile, optional even if installed.
732 # ===================================================================
736 AC_ARG_WITH(guile, [ --with-guile enable Guile support],
737 [ if test "x$withval" != xno; then enable_guile=yes; fi ])
739 # The following is probably bad, ugly and so on. Stolen from Guile's (1.4)
740 # GUILE_FLAGS but I really don't want to require people to have Guile in order
741 # to compile CVS. Also, the macro seems to be really stupid regarding searching
742 # for Guile in $PATH etc. --pasky
744 AC_MSG_CHECKING([for Guile])
746 if test "$enable_guile" = "yes"; then
748 ## Based on the GUILE_FLAGS macro.
750 if test -d "$withval"; then
751 GUILE_PATH="$withval:$PATH"
756 AC_PATH_PROG(GUILE_CONFIG, guile-config, no, $GUILE_PATH)
758 ## First, let's just see if we can find Guile at all.
759 if test "$GUILE_CONFIG" != no; then
762 GUILE_LIBS="`guile-config link`"
763 GUILE_CFLAGS="`guile-config compile`"
764 LIBS="$GUILE_LIBS $LIBS"
765 EL_CONFIG(CONFIG_SCRIPTING_GUILE, [Guile])
766 AC_SUBST(GUILE_CFLAGS)
768 ***********************************************************************
769 The Guile support is incomplete and not so well integrated to ELinks
770 yet. That means, e.g., that you have no Guile console and there might
771 not be all the necessary hooks. Also, the Guile interface is not too
772 well tested (success stories heartily welcomed!). See
773 src/scripting/guile/README for further details and hints.
774 ***********************************************************************
777 if test -n "$withval" && test "x$withval" != xno; then
778 AC_MSG_ERROR([Guile not found])
780 AC_MSG_WARN([Guile support disabled])
787 # ===================================================================
789 # ===================================================================
792 AC_ARG_WITH(perl, [ --with-perl enable Perl support],
794 if test "$withval" = yes; then
795 # FIXME: If withval is a valid directory append it to PATH
796 # so that you can specify one of several perl installations.
802 AC_MSG_CHECKING([for Perl])
808 if test "$enable_perl" = "yes"; then
809 PERL_LIBS="`perl -MExtUtils::Embed -e ldopts`"
810 PERL_CFLAGS="`perl -MExtUtils::Embed -e ccopts`"
811 LIBS="$PERL_LIBS $LIBS"
812 CFLAGS="$PERL_CFLAGS $CFLAGS"
813 CPPFLAGS="$CPPFLAGS $PERL_CFLAGS"
814 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
818 ]], [[PerlInterpreter *my_perl = perl_alloc();]])],[cf_result=yes],[cf_result=no])
821 if test "$cf_result"; then AC_MSG_RESULT($cf_result); fi
823 AC_MSG_CHECKING([whether POPpx works without an n_a variable])
824 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
827 extern PerlInterpreter *my_perl;
828 ]], [[dSP; (void) POPpx;]])],[AC_MSG_RESULT([yes])
829 AC_DEFINE([CONFIG_PERL_POPPX_WITHOUT_N_A], [1],
830 [Define if using Perl 5.8.8 or later, where the "POPpx" macro
831 no longer needs an "n_a" variable like it did in 5.8.7])],[AC_MSG_RESULT([no])])
833 if test "$cf_result" != "yes"; then
836 EL_CONFIG(CONFIG_SCRIPTING_PERL, [Perl])
839 CPPFLAGS="$CPPFLAGS_X"
841 AC_SUBST(PERL_CFLAGS)
844 # ===================================================================
846 # ===================================================================
849 AC_ARG_WITH(python, [[ --with-python[=DIR] enable Python support]],
850 [ if test "x$withval" != xno; then enable_python=yes; fi ])
855 AC_MSG_CHECKING([for Python])
857 if test "$enable_python" = "yes"; then
860 if test -d "$withval"; then
861 PYTHON_PATH="$withval:$PATH"
866 AC_PATH_PROG(PYTHON, python, no, $PYTHON_PATH)
868 if test "$PYTHON" != no; then
871 PYTHON_CFLAGS="`$PYTHON -c 'from distutils import sysconfig; print "-I%s -I%s" % (sysconfig.get_python_inc(), sysconfig.get_python_inc(plat_specific=True))'`"
872 PYTHON_LIBS="`$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"))'`"
873 LIBS="$PYTHON_LIBS $LIBS"
874 CPPFLAGS="$CPPFLAGS $PYTHON_CFLAGS"
875 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <Python.h>]], [[Py_Initialize();]])],[cf_result=yes],[cf_result=no])
877 if test "$cf_result" != "yes"; then
880 EL_CONFIG(CONFIG_SCRIPTING_PYTHON, [Python])
881 AC_SUBST(PYTHON_LIBS)
882 AC_SUBST(PYTHON_CFLAGS)
883 CPPFLAGS="$CPPFLAGS_X"
885 ***********************************************************************
886 The Python support is incomplete and not so well integrated to ELinks
887 yet. That means, e.g., that you have no Python console and there might
888 not be all the necessary hooks. Also, the Python interface is not too
889 well tested (success stories heartily welcomed!).
890 ***********************************************************************
894 if test -n "$withval" && test "x$withval" != xno; then
895 AC_MSG_ERROR([Python not found])
897 AC_MSG_WARN([Python support disabled])
905 # ===================================================================
906 # Check for Lua, optional even if installed.
907 # ===================================================================
909 # Do this the long way, as FreeBSD reportedly needs -L<dir> for
910 # anything other than /usr/lib, and Lua is very often in /usr/local/lib.
912 AC_ARG_WITH(lua, [ --without-lua disable Lua support],
913 [if test "$withval" = no; then disable_lua=yes; fi])
914 AC_MSG_CHECKING([for Lua])
919 if test -z "$disable_lua"; then
920 if test ! -d "$withval"; then
923 for luadir in "$withval" "" /usr /usr/local; do
924 for suffix in "" 51; do
925 if test "$cf_result" = no && ( test -f "$luadir/include/lua.h" || \
926 test -f "$luadir/include/lua$suffix/lua.h" ) ; then
927 LUA_LIBS="-L$luadir/lib -llua$suffix -lm"
928 LUA_CFLAGS="-I$luadir/include -I$luadir/include/lua$suffix"
930 LIBS="$LUA_LIBS $LIBS_X"
931 CFLAGS="$CFLAGS_X $LUA_CFLAGS"
932 CPPFLAGS="$CPPFLAGS_X $LUA_CFLAGS"
934 # Check that it is a compatible Lua version
935 AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <lauxlib.h>]
938 ], [[ lua_State *L = luaL_newstate();
940 lua_pushboolean(L, 1);
941 lua_close(L);]])],[cf_result=yes],[cf_result=no])
947 AC_MSG_RESULT($cf_result)
949 if test "$cf_result" != yes; then
952 EL_CONFIG(CONFIG_SCRIPTING_LUA, [Lua])
953 AC_CHECK_HEADERS(lauxlib.h)
956 CPPFLAGS="$CPPFLAGS_X"
961 # ===================================================================
962 # Check for TRE library
963 # ===================================================================
965 # This section only checks that --without-tre is not given and the
966 # library seems to work, and sets TRE_CFLAGS, TRE_LIBS, and
967 # tre_log. It does not define CONFIG_TRE, and always resets
968 # LIBS and CFLAGS back to their original values.
970 # After any --enable-utf-8 and --disable-utf-8 options have been
971 # handled, a separate section decides whether to actually use TRE.
973 # tre version 0.8.0 or higher is required which have the "tre_" prefix
976 AC_ARG_WITH([[tre]], [[ --without-tre disable TRE regex search support]])
977 if test "$with_tre" = no; then
978 AC_MSG_CHECKING([[for TRE]])
979 AC_MSG_RESULT([[disabled]])
980 tre_log="no (explicitly disabled)"
982 AC_MSG_CHECKING([[for TRE in pkg-config]])
983 if pkg-config tre; then
984 TRE_CFLAGS=`pkg-config --cflags tre`
985 TRE_LIBS=`pkg-config --libs tre`
986 AC_MSG_RESULT([[yes]])
988 # <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513055>
989 # "libtre-dev: /usr/lib/pkgconfig/tre.pc missing"
990 # so we look for the library even if pkg-config doesn't know about it.
993 AC_MSG_RESULT([[no, but let's try defaults]])
996 AC_MSG_CHECKING([[for TRE header and library]])
998 CFLAGS="$TRE_CFLAGS $CFLAGS"
999 LIBS="$TRE_LIBS $LIBS" # must be first, because of regfree conflict
1000 AC_TRY_LINK([#include <tre/tre.h>],
1002 regmatch_t match[1];
1003 tre_regwcomp(&re, L"zap", REG_ICASE);
1004 tre_regwexec(&re, L"ELIZAPROGRAM", 1, match, 0);],
1005 [AC_MSG_RESULT([[yes]])
1006 tre_log="available"],
1007 [AC_MSG_RESULT([[no]])
1008 tre_log="no (TRE not found)"])
1012 # ===================================================================
1013 # Check for Ruby, optional even if installed.
1014 # ===================================================================
1016 EL_CONFIG_SCRIPTING_RUBY
1018 # ===================================================================
1019 # Setup global scripting
1020 # ===================================================================
1022 EL_CONFIG_DEPENDS(CONFIG_SCRIPTING, [CONFIG_SCRIPTING_GUILE CONFIG_SCRIPTING_LUA CONFIG_SCRIPTING_PERL CONFIG_SCRIPTING_PYTHON CONFIG_SCRIPTING_RUBY CONFIG_SCRIPTING_SPIDERMONKEY], [Browser scripting])
1023 AC_SUBST(CONFIG_SCRIPTING_GUILE)
1024 AC_SUBST(CONFIG_SCRIPTING_LUA)
1025 AC_SUBST(CONFIG_SCRIPTING_PERL)
1026 AC_SUBST(CONFIG_SCRIPTING_PYTHON)
1027 AC_SUBST(CONFIG_SCRIPTING_RUBY)
1028 AC_SUBST(CONFIG_SCRIPTING_SPIDERMONKEY)
1029 AC_SUBST(CONFIG_SCRIPTING)
1032 # ===================================================================
1033 # Check for SSL support.
1034 # ===================================================================
1036 # We by default use OpenSSL, and we always prefer it. However, when GNUTLS
1037 # is enabled, we won't try to use OpenSSL anymore.
1039 # For wiping SSL hooks..
1042 chosen_ssl_library=""
1044 AC_ARG_WITH(gnutls, [[ --without-gnutls disable GNUTLS SSL support]])
1045 AC_ARG_WITH(gnutls, [[ --with-gnutls enable GNUTLS SSL support]],
1046 [case "$with_gnutls" in
1048 "yes") chosen_ssl_library="GNUTLS" ;;
1049 *) chosen_ssl_library="GNUTLS"
1050 AC_MSG_WARN([[Support for --with-gnutls=DIR has been removed.
1051 You may have to set the PKG_CONFIG_PATH environment variable instead.]]) ;;
1054 AC_ARG_WITH(openssl, [[ --without-openssl disable OpenSSL support]])
1055 AC_ARG_WITH(openssl, [[ --with-openssl[=DIR] enable OpenSSL support (default)]],
1056 [case "$with_openssl" in
1058 *) chosen_ssl_library="OpenSSL" ;;
1061 AC_ARG_WITH(nss_compat_ossl, [[ --with-nss_compat_ossl[=DIR]
1062 NSS compatibility SSL libraries/include files]],
1063 [case "$with_nss_compat_ossl" in
1065 *) chosen_ssl_library="nss_compat_ossl" ;;
1068 # ---- nss_compat_ossl
1070 if test "$with_nss_compat_ossl" = no; then
1071 # explicitly disabled
1073 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "nss_compat_ossl"; then
1074 # not used, because $chosen_ssl_library was chosen
1076 elif test -z "${with_nss_compat_ossl+set}"; then
1077 # SSL_library_init() in nss_compat_ossl 0.9.2 calls exit(1)
1078 # with no error message if there is no certificate database.
1079 # https://bugzilla.redhat.com/show_bug.cgi?id=463437
1080 # So ELinks uses nss_compat_ossl only if explicitly requested.
1084 if test "$with_nss_compat_ossl" = yes; then
1085 if pkg-config nss; then
1086 CFLAGS="$CFLAGS_X `pkg-config --cflags nss`"
1087 LIBS="$LIBS_X `pkg-config --libs nss`"
1089 with_nss_compat_ossl=no
1092 # Without pkg-config, we'll kludge in some defaults
1093 CFLAGS="$CFLAGS_X -I$with_nss_compat_ossl/include -I/usr/include/nss3 -I/usr/include/nspr4"
1094 LIBS="$LIBS_X -L$with_nss_compat_ossl/lib -lssl3 -lsmime3 -lnss3 -lplds4 -lplc4 -lnspr4 -lpthread -ldl"
1096 AC_CHECK_HEADERS(nss_compat_ossl/nss_compat_ossl.h,, [with_nss_compat_ossl=no], [#define NSS_COMPAT_OSSL_H])
1097 AC_CHECK_LIB(nss_compat_ossl, X509_free,, [with_nss_compat_ossl=no])
1099 if test "$with_nss_compat_ossl" = "no"; then
1102 LIBS="$LIBS -lnss_compat_ossl"
1103 EL_CONFIG(CONFIG_NSS_COMPAT_OSSL, [nss_compat_ossl])
1104 chosen_ssl_library="nss_compat_ossl"
1110 AC_MSG_CHECKING([for OpenSSL])
1114 if test "$with_openssl" = no; then
1115 cf_result="explicitly disabled"
1117 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "OpenSSL"; then
1118 cf_result="not used, because $chosen_ssl_library was chosen"
1122 for ssldir in "$with_openssl" "" /usr /usr/local/openssl \
1123 /usr/lib/openssl /usr/local/ssl \
1124 /usr/local/www /usr/lib/ssl /usr/local \
1125 /usr/pkg /opt /opt/openssl; do
1126 if test "$cf_result" = no; then
1127 if test -d "$ssldir"; then
1128 OPENSSL_CFLAGS="-I$ssldir/include"
1129 LIBS="-L$ssldir/lib -lssl -lcrypto $LIBS_X"
1130 CFLAGS="$CFLAGS_X $OPENSSL_CFLAGS"
1131 CPPFLAGS="$CPPFLAGS_X $OPENSSL_CFLAGS"
1132 # # FIXME: This created serious portability problems. --pasky
1133 # if test "$CC" == "gcc"; then
1134 # # I'm not sure about compatibility here. --pasky
1135 # LIBS="$LIBS -R$ssldir/lib"
1138 LIBS="-lssl -lcrypto $LIBS_X"
1140 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <openssl/ssl.h>]], [[OpenSSL_add_all_algorithms()]])],[cf_result=yes],[cf_result=no])
1141 if test "$cf_result" != yes; then
1142 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <openssl/ssl.h>]], [[SSLeay_add_ssl_algorithms()]])],[cf_result=yes],[cf_result=no])
1147 if test "$cf_result" != yes; then
1148 if test "${with_openssl-no}" != "no"; then
1149 AC_MSG_ERROR([OpenSSL not found])
1153 EL_CONFIG(CONFIG_OPENSSL, [OpenSSL])
1154 chosen_ssl_library="OpenSSL"
1157 AC_SUBST(OPENSSL_CFLAGS)
1161 AC_MSG_RESULT($cf_result)
1165 # GnuTLS 2.2.0 changed libgnutls-openssl from GPLv2+
1166 # to GPLv3+. Don't link that with the GPLv2 ELinks.
1167 # ELinks will use its internal MD5 code instead.
1168 CONFIG_GNUTLS_OPENSSL_COMPAT=no
1170 if test "$with_gnutls" = no; then
1171 AC_MSG_CHECKING([[for GNUTLS]])
1172 AC_MSG_RESULT([[explicitly disabled]])
1174 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "GNUTLS"; then
1175 AC_MSG_CHECKING([[for GNUTLS]])
1176 AC_MSG_RESULT([[not used, because $chosen_ssl_library was chosen]])
1180 AC_MSG_CHECKING([[for GNUTLS (1.2 or later) in pkg-config]])
1181 if pkg-config --atleast-version=1.2 gnutls; then
1182 GNUTLS_CFLAGS=`pkg-config --cflags gnutls`
1183 GNUTLS_LIBS=`pkg-config --libs gnutls`
1184 AC_MSG_RESULT([[yes: $GNUTLS_CFLAGS $GNUTLS_LIBS]])
1187 LIBS="$GNUTLS_LIBS $LIBS"
1188 CFLAGS="$CFLAGS $GNUTLS_CFLAGS"
1189 CPPFLAGS="$CPPFLAGS $GNUTLS_CFLAGS"
1191 # Verify if it's really usable. gnutls_session was
1192 # renamed to gnutls_session_t before GNU TLS 1.2.0
1193 # (on 2004-06-13); ELinks now requires this.
1194 AC_MSG_CHECKING([[whether GNUTLS can be linked with]])
1195 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <gnutls/gnutls.h>]],
1196 [[gnutls_session_t dummy;
1197 gnutls_check_version(NULL)]])],
1200 AC_MSG_RESULT([[$cf_result]])
1202 if test "$cf_result" = yes; then
1203 # According to gnutls/NEWS, the function was originally
1204 # added as gnutls_set_default_priority2 in GNUTLS 2.1.4
1205 # (released 2007-10-27) and then renamed to
1206 # gnutls_priority_set_direct in GNUTLS 2.1.7 (released
1208 AC_CHECK_FUNCS([gnutls_priority_set_direct])
1213 AC_MSG_RESULT([[$cf_result]])
1216 if test "$cf_result" = yes; then
1217 EL_CONFIG(CONFIG_GNUTLS, [GNUTLS])
1218 chosen_ssl_library="GNUTLS"
1220 LIBS="$GNUTLS_LIBS $LIBS"
1221 AC_SUBST(GNUTLS_CFLAGS)
1223 elif test "${with_gnutls-no}" != "no"; then
1224 AC_MSG_ERROR([[GNUTLS (1.2 or later) not found. ELinks no longer supports GNUTLS 1.1.]])
1230 EL_CONFIG_DEPENDS(CONFIG_SSL, [CONFIG_OPENSSL CONFIG_GNUTLS CONFIG_NSS_COMPAT_OSSL], [SSL])
1231 AC_SUBST(CONFIG_GNUTLS_OPENSSL_COMPAT)
1232 AC_SUBST(CONFIG_OPENSSL)
1233 AC_SUBST(CONFIG_GNUTLS)
1234 AC_SUBST(CONFIG_NSS_COMPAT_OSSL)
1238 AC_MSG_CHECKING([whether to be or not to be])
1239 AC_MSG_RESULT([needs to be determined experimentally])
1241 # ===================================================================
1242 # Check for IPv6 support and related functions.
1243 # ===================================================================
1245 EL_CHECK_NET_TYPE(struct sockaddr_storage, HAVE_SA_STORAGE, [])
1246 EL_CHECK_NET_TYPE(struct sockaddr_in6, HAVE_SA_IN6, [#include <netinet/in.h>])
1247 EL_CHECK_NET_TYPE(struct addrinfo, HAVE_ADDRINFO, [#include <netdb.h>])
1249 AC_CHECK_FUNC(getaddrinfo, HAVE_GETADDRINFO=yes, HAVE_GETADDRINFO=no)
1250 if test "$HAVE_GETADDRINFO" != yes; then
1251 AC_CHECK_LIB(inet6, getaddrinfo, HAVE_GETADDRINFO=yes, HAVE_GETADDRINFO=no)
1252 if test "$HAVE_GETADDRINFO" = yes; then
1253 LIBS="$LIBS -linet6"
1258 # ===================================================================
1259 # Checking for X11 (window title restoring).
1260 # ===================================================================
1263 if test x"$no_x" != xyes; then
1265 if test -n "$x_includes"; then
1266 X_CFLAGS="-I$x_includes"
1267 CPPFLAGS="$CPPLAGS $X_CFLAGS"
1268 CFLAGS="$CFLAGS $X_CFLAGS"
1270 if test -n "$x_libraries"; then
1271 LDFLAGS="$LDFLAGS -L$x_libraries"
1274 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]], [[XrmInitialize()]])],[cf_result=yes],[cf_result=no])
1276 if test "$cf_result" = yes; then
1277 if test -n "$x_libraries"; then
1278 LDFLAGS="$LDFLAGS -L$x_libraries"
1281 EL_DEFINE(HAVE_X11, [X11 for restoring window titles])
1287 # ===================================================================
1288 # Backtraces displaying support.
1289 # ===================================================================
1291 AC_CHECK_HEADERS(execinfo.h, HAVE_EXECINFO=yes, HAVE_EXECINFO=no)
1292 # possible checks for other system-specific means go here
1295 # ===================================================================
1296 # Gettext grey zone. Beware.
1297 # ===================================================================
1299 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"
1303 dnl AC_MSG_CHECKING([how many characters your English alphabet has])
1304 dnl # f33r d4 l33t... I hope it's portable. :)
1305 dnl cf_result=$((48#z - 48#a + 1));
1306 dnl AC_MSG_RESULT($cf_result)
1309 # ===================================================================
1310 # Compile-time features control
1311 # ===================================================================
1313 EL_ARG_ENABLE(CONFIG_COOKIES, cookies, [Cookies],
1314 [ --disable-cookies disable cookie support])
1316 EL_ARG_ENABLE(CONFIG_FORMHIST, formhist, [Form history],
1317 [ --disable-formhist disable form history support])
1319 EL_ARG_ENABLE(CONFIG_GLOBHIST, globhist, [Global history],
1320 [ --disable-globhist disable global history support])
1323 EL_ARG_ENABLE(CONFIG_MAILCAP, mailcap, [Mailcap],
1324 [ --disable-mailcap disable mailcap support])
1326 EL_ARG_ENABLE(CONFIG_MIMETYPES, mimetypes, [Mimetypes files],
1327 [ --disable-mimetypes disable mimetypes files support])
1330 EL_ARG_DEPEND(CONFIG_IPV6, ipv6,
1331 [HAVE_SA_STORAGE:yes HAVE_SA_IN6:yes HAVE_ADDRINFO:yes HAVE_GETADDRINFO:yes],
1333 [ --disable-ipv6 disable IPv6 support])
1335 EL_ARG_ENABLE(CONFIG_BITTORRENT, bittorrent, [BitTorrent protocol],
1336 [ --enable-bittorrent enable BitTorrent protocol support])
1338 EL_ARG_ENABLE(CONFIG_DATA, data, [Data protocol],
1339 [ --disable-data disable data protocol support])
1341 EL_ARG_ENABLE(CONFIG_URI_REWRITE, uri-rewrite, [URI rewriting],
1342 [ --disable-uri-rewrite disable URI rewrite support])
1344 EL_ARG_DEPEND(CONFIG_CGI, cgi, [HAVE_SETENV_OR_PUTENV:yes], [Local CGI],
1345 [ --enable-cgi enable local CGI support])
1347 EL_ARG_ENABLE(CONFIG_FINGER, finger, [Finger protocol],
1348 [ --enable-finger enable finger protocol support])
1350 # ===================================================================
1352 # ===================================================================
1355 if test "x${enable_fsp}" != xno; then
1356 AC_CHECK_HEADERS(fsplib.h, HAVE_FSPLIB=yes, HAVE_FSPLIB=no)
1358 if test "$HAVE_FSPLIB" = yes; then
1359 AC_CHECK_LIB(fsplib, fsp_open_session, HAVE_FSPLIB=yes, HAVE_FSPLIB=no)
1360 if test "$HAVE_FSPLIB" = yes; then
1361 LIBS="$LIBS -lfsplib"
1363 AC_CHECK_LIB(fsp, fsp_open_session, HAVE_FSPLIB=yes, HAVE_FSPLIB=no)
1364 if test "$HAVE_FSPLIB" = yes; then
1371 EL_ARG_DEPEND(CONFIG_FSP, fsp, [HAVE_FSPLIB:yes], [FSP protocol],
1372 [ --enable-fsp enable FSP protocol support])
1374 if test "x$CONFIG_FSP" = xno; then
1378 EL_ARG_ENABLE(CONFIG_FTP, ftp, [FTP protocol],
1379 [ --disable-ftp disable ftp protocol support])
1381 EL_ARG_ENABLE(CONFIG_GOPHER, gopher, [Gopher protocol],
1382 [ --enable-gopher enable gopher protocol support])
1384 EL_ARG_ENABLE(CONFIG_NNTP, nntp, [NNTP protocol],
1385 [ --enable-nntp enable nntp protocol support])
1387 # ===================================================================
1388 # SMB protocol support.
1389 # ===================================================================
1392 if test "x${enable_smb}" != xno; then
1393 AC_CHECK_HEADERS(libsmbclient.h, HAVE_SMBCLIENT=yes, HAVE_SMBCLIENT=no)
1395 if test "$HAVE_SMBCLIENT" = yes; then
1396 AC_CHECK_LIB(smbclient, smbc_init, HAVE_SMBCLIENT=yes, HAVE_SMBCLIENT=no)
1397 if test "$HAVE_SMBCLIENT" = yes; then
1398 LIBS="$LIBS -lsmbclient"
1403 EL_ARG_DEPEND(CONFIG_SMB, smb, [HAVE_SMBCLIENT:yes], [Samba protocol],
1404 [ --enable-smb enable Samba protocol support])
1406 if test "x$CONFIG_SMB" = xno; then
1411 EL_ARG_ENABLE(CONFIG_MOUSE, mouse, [Mouse handling],
1412 [ --disable-mouse disable mouse support])
1414 # GPM mouse is Linux specific, so ...
1416 EL_ARG_DEPEND(CONFIG_SYSMOUSE, sysmouse,
1417 [CONFIG_MOUSE:yes CONFIG_GPM:no HAVE_SYSMOUSE_HEADER:yes],
1419 [ --disable-sysmouse disable BSD sysmouse support])
1421 EL_ARG_ENABLE(CONFIG_88_COLORS, 88-colors, [88 colors],
1422 [ --enable-88-colors enable 88 color support])
1424 EL_ARG_ENABLE(CONFIG_256_COLORS, 256-colors, [256 colors],
1425 [ --enable-256-colors enable 256 color support])
1427 EL_ARG_ENABLE(CONFIG_TRUE_COLOR, true-color, [true color],
1428 [ --enable-true-color enable true color support])
1430 EL_ARG_ENABLE(CONFIG_EXMODE, exmode, [Exmode interface],
1431 [ --enable-exmode enable exmode (CLI) interface])
1433 EL_ARG_ENABLE(CONFIG_LEDS, leds, [LEDs],
1434 [ --disable-leds disable LEDs support])
1436 EL_ARG_ENABLE(CONFIG_MARKS, marks, [Marks],
1437 [ --disable-marks disable document marks support])
1440 EL_ARG_ENABLE(CONFIG_CSS, css, [Cascading Style Sheets],
1441 [ --disable-css disable Cascading Style Sheet support])
1443 EL_ARG_DEPEND(CONFIG_HTML_HIGHLIGHT, html-highlight, [CONFIG_CSS:yes], [HTML highlighting],
1444 [ --enable-html-highlight HTML highlighting using DOM engine])
1446 # Everything in the tree already uses CONFIG_DOM
1447 # so resolve CONFIG_HTML_HIGHLIGHT to CONFIG_DOM
1448 EL_CONFIG_DEPENDS(CONFIG_DOM, [CONFIG_HTML_HIGHLIGHT], [DOM engine])
1450 EL_ARG_DEPEND(CONFIG_BACKTRACE, backtrace, [HAVE_EXECINFO:yes], [Backtrace],
1451 [ --disable-backtrace disable backtrace support])
1453 EL_ARG_DEPEND(CONFIG_NO_ROOT_EXEC, no-root, [HAVE_GETUID:yes HAVE_GETEUID:yes], [No root exec],
1454 [ --enable-no-root enable prevention of usage by root])
1457 EL_ARG_ENABLE(CONFIG_DEBUG, debug, [Debug mode],
1458 [ --enable-debug enable leak debug and internal error checking])
1460 EL_ARG_DEPEND(CONFIG_FASTMEM, fastmem, [CONFIG_DEBUG:no], [Fast mode],
1461 [ --enable-fastmem enable direct use of system allocation functions, not usable with --enable-debug])
1463 EL_ARG_ENABLE(CONFIG_OWN_LIBC, own-libc, [Own libc stubs],
1464 [ --enable-own-libc force use of internal functions instead of those of system libc])
1466 EL_ARG_ENABLE(CONFIG_SMALL, small, [Small binary],
1467 [ --enable-small reduce binary size as far as possible (but see the bottom of doc/small.txt!)])
1469 EL_ARG_ENABLE(CONFIG_UTF8, utf-8, [UTF-8],
1470 [ --disable-utf-8 disable UTF-8 support])
1472 EL_ARG_DEPEND(CONFIG_COMBINE, combining, [CONFIG_UTF8:yes HAVE_WCWIDTH:yes], [Combining characters],
1473 [ --enable-combining support Unicode combining characters (experimental)])
1476 AC_ARG_ENABLE(weehoofooboomookerchoo,
1478 Also check out the features.conf file for more information about features!
1480 [AC_MSG_ERROR(Are you strange, or what?)])
1483 # ===================================================================
1484 # Decide whether to use TRE
1485 # ===================================================================
1487 # This must be done after the CONFIG_UTF8 check above.
1488 # The first part of the TRE check is separate, to get
1489 # the configure --help output in a sensible order.
1491 # After this section, nothing else must be added to the
1492 # beginning of $LIBS.
1494 if test "$tre_log" = "available"; then
1495 if test "$CONFIG_UTF8" = "yes"; then
1496 # When CONFIG_UTF8 and CONFIG_TRE are both defined,
1497 # src/viewer/text/search.c makes a string of
1498 # unicode_val_T and gives it to regwexec(), which
1499 # expects a string of wchar_t. If the unicode_val_T
1500 # and wchar_t types are too different, this won't
1501 # work, so try to detect that and disable regexp
1502 # operations entirely in that case.
1504 # Currently, this code only compares the sizes of the
1505 # types. src/intl/charsets.h defines unicode_val_T as
1506 # uint32_t, so we check whether wchar_t has exactly 32
1507 # bits. But don't use AC_CHECK_SIZEOF for this, because
1508 # there doesn't seem to be a documented way to get the
1509 # result of that for use in the configure script.
1511 # C99 says the implementation can define
1512 # __STDC_ISO_10646__ if wchar_t values match ISO 10646
1513 # (or Unicode) numbers in all locales. Do not check
1514 # that macro here, because it is too restrictive: it
1515 # should be enough for ELinks if the values match in
1516 # the locales where ELinks is actually run.
1517 AC_MSG_CHECKING([[whether wchar_t is exactly 32-bit]])
1518 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1521 int dummy[(sizeof(wchar_t) * CHAR_BIT == 32) ? 1 : -1];]], [])],
1522 [AC_MSG_RESULT([[yes]])
1524 [AC_MSG_RESULT([[no]])
1525 tre_log="no (unsuitable wchar_t)"])
1527 # If UTF-8 is not used, then wchar_t doesn't matter.
1532 if test "$tre_log" = "TRE"; then
1533 AC_DEFINE([CONFIG_TRE], [1],
1534 [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.])
1535 # TRE_CFLAGS will be used only where needed.
1537 # Bug 1081: If both TRE and libc define the regfree function,
1538 # ELinks needs to use the version defined by TRE because
1539 # that's the one compatible with regex_t initialized by the
1540 # regwcomp function of TRE. Therefore put $TRE_LIBS at the
1541 # very beginning of $LIBS so that the linker hopefully finds
1542 # regfree there before it examines libc. In particular,
1543 # $PERL_LIBS appears to often include "-lc".
1545 # This scheme still risks a crash if ELinks is linked with
1546 # some static library that uses GNU <regex.h> extensions that
1547 # TRE does not implement. For example, the library might call
1548 # re_compile_pattern, which is found in GNU libc, and then
1549 # regfree, which is found in TRE and probably crashes with the
1550 # GNU-initialized regex_t. Ways to avoid such crashes:
1552 # - Change TRE so it defines only tre_... functions and does
1553 # not attempt to override the POSIX names by default.
1555 # - Change ELinks to access TRE only via dlopen and dlsym.
1556 # The problem then is how to find the correct file name.
1557 # There might be libtre.so.4 and libtre.so.5 with different
1558 # ABI. How can this configure script detect which of them
1559 # matches the <tre/regex.h> in the include path?
1561 # - Replace the static library with a shared library. At
1562 # least on GNU/Linux, when the shared library is built, the
1563 # linker should note that e.g. regfree is defined in libc
1564 # and has the GLIBC_2.0 version there, and write that
1565 # version string to the shared library as well; because TRE
1566 # does not provide regfree with that version, any regfree
1567 # calls at run time should then get resolved to libc.
1568 LIBS="$TRE_LIBS $LIBS"
1573 AC_SUBST(TRE_CFLAGS)
1575 EL_LOG_CONFIG([CONFIG_TRE], [[Regexp searching]], [[$tre_log]])
1578 # ===================================================================
1579 # Further LDFLAGS tweaks
1580 # ===================================================================
1584 test "$CONFIG_OS_OS2" = yes && LDFLAGS="$LDFLAGS -Zexe"
1585 test "$CONFIG_OS_OS2" = yes && LDFLAGS=`echo "$LDFLAGS" | sed "s/-Zbin-files//g"`
1588 # Check for -rdynamic
1590 # gcc -rdynamic calls ld -export-dynamic, which adds all symbols of
1591 # the executable to its dynamic symbol table. ELinks uses this for
1594 # 1. If ELinks detects a bug, it can try to display a backtrace by
1595 # calling backtrace_symbols_fd() in the GNU libc. The glibc-2.3.6
1596 # manual states users of GNU ld must pass -rdynamic to make the
1597 # symbols available to the program.
1599 # 2. It would eventually be nice to dynamically load shared
1600 # libraries as plugins (bug 73). The plugins must be able to
1601 # call ELinks functions. This can be implemented either by
1602 # registering all callable functions in ELinks-specific data
1603 # structures, or by letting the dynamic linker handle them.
1604 # The latter way requires something equivalent to -rdynamic.
1606 # Because backtraces are not needed for correct operation, and bug
1607 # 73 is not yet being fixed, the configure script and makefiles
1608 # should not complain to the user if they find that -rdynamic does
1609 # not work. Besides, it was reported at elinks-users on 2006-09-12
1610 # that gcc-3.4.2 with "ld: Software Generation Utilities - Solaris
1611 # Link Editors: 5.8-1.284" on Sun Solaris 8 Sparc does not support
1612 # -rdynamic but does something equivalent automatically. (This was
1613 # tested with "nm -D elinks | grep redraw_from_window".)
1615 # With Sun Studio 11 on Solaris 9, we get "cc: Warning: illegal option
1616 # -dynamic"; then, cc proceeds anyway, but the option can prevent the
1617 # linker from finding the libraries listed in -l operands. So this
1618 # -rdynamic check needs to happen after the libraries have already
1619 # been added to $LDFLAGS.
1620 AC_MSG_CHECKING([for -rdynamic])
1621 LDFLAGS_X="$LDFLAGS"
1622 LDFLAGS="-rdynamic $LDFLAGS"
1623 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[have_rdynamic=yes],[have_rdynamic=no])
1624 test "$have_rdynamic" = no && LDFLAGS="$LDFLAGS_X"
1625 AC_MSG_RESULT($have_rdynamic)
1627 # ===================================================================
1628 # Export directory paths
1629 # ===================================================================
1631 # Set up the ``entry points'' if they were not supplied by builder
1632 test "x$prefix" = xNONE && prefix=$ac_default_prefix
1633 test "x$exec_prefix" = xNONE && exec_prefix=${prefix}
1635 # Create CONFDIR #define for config.h
1637 # XXX: This may be dependent on a particular version of autoconf. Whatever,
1638 # it's autoconf fault to force us to do such hacks ;p.
1639 if test x"$sysconfdir" = x"\${prefix}/etc"; then
1640 # sysconfdir is set to its default value... fine, let's append /elinks/
1641 # XXX: We can't modify listing of the default in ./configure --help :-(
1642 sysconfdir_n=`eval echo "$sysconfdir"`
1643 sysconfdir=$sysconfdir_n
1644 (echo "$sysconfdir" | grep elinks >/dev/null 2>/dev/null) || \
1645 sysconfdir="$sysconfdir/elinks"
1649 AC_DEFINE_UNQUOTED(CONFDIR, "$CONFDIR", [Directory containing default config])
1652 # Create LOCALEDIR #define for config.h
1653 LOCALEDIR=`eval echo "$datadir/locale"`
1654 while echo "$LOCALEDIR" | grep "\\$"
1656 LOCALEDIR=`eval echo "$LOCALEDIR"`
1657 done > /dev/null 2> /dev/null
1658 AC_DEFINE_UNQUOTED(LOCALEDIR, "$LOCALEDIR", [Directory containing locales])
1661 # Create LIBDIR #define for config.h
1662 LIBDIR=`eval echo "$libdir"`
1663 AC_DEFINE_UNQUOTED(LIBDIR, "$LIBDIR", [Directory containing libraries])
1666 EL_LOG_CONFIG(CONFDIR, [System configuration directory], [])
1667 EL_LOG_CONFIG(LOCALEDIR, [Locale catalogs directory], [])
1670 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stddef.h>
1671 ]], [[#if !defined(__TINYC__) || !defined(alloca)
1673 #endif ]])],[cf_result=yes],[cf_result=no])
1675 if test "$cf_result" = "yes"; then
1676 AC_DEFINE([HAVE_ALLOCA])
1677 AC_DEFINE([_ALLOCA_H], [1], [Define as 1 if you are using Tiny C Compiler
1678 with the GNU C Library, and <alloca.h> of glibc would otherwise
1679 override the alloca macro defined in <stddef.h> of TCC.
1680 If <alloca.h> of glibc sees the _ALLOCA_H macro, it assumes
1681 it has already been included, and does not redefine alloca.
1682 This might not work in future glibc versions though, because
1683 the names of the #include guard macros are not documented.
1684 The incompatibility has been reported to the tinycc-devel
1685 mailing list on 2008-07-14. If a future version of TCC provides
1686 an <alloca.h> of its own, this hack won't be needed.])
1688 # ===================================================================
1689 # A little fine tuning of gcc specific options (continued)
1690 # ===================================================================
1692 if test "x$ac_cv_c_compiler_gnu" = "xyes"; then
1693 if test "$CONFIG_DEBUG" = "yes"; then
1694 # We want to see all warnings and live with none (in debug mode).
1695 CFLAGS="$CFLAGS -Werror"
1698 case "`$CC -dumpversion`" in
1700 # These should be ok using -Werror
1703 # If gcc is version 3.3 (or higher?) it emits lots of false positive
1704 # "dereferencing type-punned pointer will break strict-aliasing rules"
1705 # warnings. Disable them by not doing any strict-aliasing. The
1706 # alternative is just too ugly. Thanks gcc guys!! ;)
1707 CFLAGS="$CFLAGS -fno-strict-aliasing"
1710 CFLAGS="$CFLAGS -fno-strict-aliasing -Wno-pointer-sign -Wno-enum-compare"
1713 # Do not show warnings related to (char * | unsigned char *) type
1715 CFLAGS="$CFLAGS -fno-strict-aliasing -Wno-pointer-sign"
1718 # These should be ok using -Werror
1722 # GCC 4.2.1 warns if we use the address of an object in Boolean context:
1723 # warning: the address of `builtin_modules' will always evaluate as `true'
1724 # This hits the object_lock and foreach_module macros in particular.
1725 # It would be okay to put something in the macros to avoid the warning,
1726 # but currently this seems to require defining parallel macros that skip
1727 # the NULL check, and that's too ugly. So we instead disable the warning.
1728 # GCC 4.2.1 needs -Wno-address, but GCC 4.2 snapshots need -Wno-always-true.
1729 # GCC 4.1.3 recognizes neither and exits with code 1 if they are given.
1730 for warning_flag in -Wno-address -Wno-always-true; do
1731 AC_MSG_CHECKING([whether $CC accepts $warning_flag])
1733 CFLAGS="$CFLAGS $warning_flag"
1734 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1735 [AC_MSG_RESULT([yes])
1737 [AC_MSG_RESULT([no])])
1741 # Bug 1012: Some parts of ELinks do arithmetic with signed integers
1742 # in such a way that an overflow is possible. GCC 4.2.1 warns
1743 # "warning: assuming signed overflow does not occur when assuming
1744 # that (X + c) > X is always true", which may be an incorrect
1745 # optimization (although allowed by the standard), and breaks the
1746 # build with -Werror.
1748 # All of the following tests included -S -Wall -Wextra:
1750 # GCC: (GNU) 4.0.4 20060507 (prerelease) (Debian 4.0.3-3)
1751 # * gcc-4.0 -O0: OK, compares the values
1752 # * gcc-4.0 -O2: assumes no overflow, does not warn
1753 # * gcc-4.0 -O0 -fno-strict-overflow: unrecognized command line option
1754 # * gcc-4.0 -O0 -fwrapv: OK, compares the values
1755 # * gcc-4.0 -O2 -fwrapv: OK, compares the values
1756 # * gcc-4.0 -O0 -ftrapv: OK, calls __addvsi3
1757 # * gcc-4.0 -O2 -ftrapv: assumes no overflow, does not warn
1758 # * gcc-4.0 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1759 # * gcc-4.0 -O2 -fwrapv -ftrapv: compares the values
1761 # GCC: (GNU) 4.1.3 20070812 (prerelease) (Debian 4.1.2-15)
1762 # * gcc-4.1 -O0: assumes no overflow, does not warn
1763 # * gcc-4.1 -O2: assumes no overflow, does not warn
1764 # * gcc-4.1 -O0 -fno-strict-overflow: unrecognized command line option
1765 # * gcc-4.1 -O0 -fwrapv: OK, compares the values
1766 # * gcc-4.1 -O2 -fwrapv: OK, compares the values
1767 # * gcc-4.1 -O0 -ftrapv: OK, calls __addvsi3
1768 # * gcc-4.1 -O2 -ftrapv: compares the values
1769 # * gcc-4.1 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1770 # * gcc-4.1 -O2 -fwrapv -ftrapv: compares the values
1772 # GCC: (GNU) 4.2.1 (Debian 4.2.1-5)
1773 # * gcc-4.2 -O0: OK, compares the values
1774 # * gcc-4.2 -O2: assumes no overflow, warns about it
1775 # * gcc-4.2 -O0 -fno-strict-overflow: OK, compares the values
1776 # * gcc-4.2 -O2 -fno-strict-overflow: OK, compares the values
1777 # * gcc-4.2 -O0 -fwrapv: OK, compares the values
1778 # * gcc-4.2 -O2 -fwrapv: OK, compares the values
1779 # * gcc-4.2 -O0 -ftrapv: OK, calls __addvsi3
1780 # * gcc-4.2 -O2 -ftrapv: compares the values
1781 # * gcc-4.2 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1782 # * gcc-4.2 -O2 -fwrapv -ftrapv: compares the values
1784 # Apparently, -ftrapv does not work reliably at all.
1785 for overflow_flag in -fno-strict-overflow -fwrapv; do
1786 AC_MSG_CHECKING([whether $CC accepts $overflow_flag])
1788 CFLAGS="$CFLAGS $overflow_flag"
1789 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1790 [AC_MSG_RESULT([yes])
1792 [AC_MSG_RESULT([no])])
1797 EL_LOG_CONFIG(CFLAGS, [Compiler flags (CFLAGS)], [])
1798 EL_LOG_CONFIG(CPPFLAGS, [Preprocessor flags (CPPFLAGS)], [])
1799 EL_LOG_CONFIG(LDFLAGS, [Linker flags (LDFLAGS)], [])
1800 EL_LOG_CONFIG(LIBS, [Library flags (LIBS)], [])
1802 # ===================================================================
1803 # Colored make output
1804 # ===================================================================
1806 if test $(`which tput` colors) -ge 4; then
1808 AC_SUBST(MAKE_COLOR)
1811 # ===================================================================
1813 # ===================================================================
1817 contrib/elinks.spec \
1818 contrib/lua/hooks.lua \
1819 contrib/conv/w3m2links.awk \
1821 doc/man/man1/elinks.1 \
1822 src/intl/gettext/ref-add.sed \
1823 src/intl/gettext/ref-del.sed
1827 abs_srcdir="$(cd "$srcdir" && pwd)"
1828 # builddir is always absolute!
1829 if test "$abs_srcdir" != "$builddir"; then
1830 # Bootstrap the Makefile creation
1831 echo "include $abs_srcdir/Makefile" > "$builddir/Makefile"
1832 "$MAKE" "SRC=$abs_srcdir" init
1834 # Make cg-status ignore this build directory
1835 echo "*" > "$builddir/.gitignore"
1838 # ===================================================================
1839 # Configuration summary
1840 # ===================================================================
1842 AC_MSG_RESULT(The following feature summary has been saved to features.log)