1 dnl Process this file with autoconf to produce a configure script.
3 dnl There are two types of comments in this file.
4 dnl Comments that refer to Autoconf macros begin with "dnl", and m4
5 dnl discards them. Other comments begin with "#", and they get copied
6 dnl to the configure script, hopefully making it easier to read.
8 dnl Autoconf 2.13 generates an incomplete config.h.in; see ELinks bug 936.
9 dnl Autoconf 2.61 is installed in the computer that generates our nightly
10 dnl snapshots, so we need to be compatible with that. (Also, some files
11 dnl in Autoconf 2.62 and 2.63 sources are not GPLv2 compatible.)
14 AC_CONFIG_SRCDIR([src/main/main.c])
15 AC_CONFIG_AUX_DIR(config)
21 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Package version])
22 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Package version])
23 AC_CONFIG_HEADERS(config.h)
25 AC_CHECK_PROG(ACLOCAL,[aclocal],[aclocal],[config/missing aclocal])
26 AC_CHECK_PROG(AUTOCONF,[autoconf],[autoconf],[config/missing autoconf])
27 AC_CHECK_PROG(AUTOHEADER,[autoheader],[autoheader],[config/missing autoheader])
31 for make in gnumake gmake make false; do
32 if test "x$MAKE" = x; then
33 AC_PATH_PROGS(MAKE, "$make")
39 # Cleanup if we are configuring with a previous build in the tree
40 if test -e Makefile.config; then
41 AC_MSG_CHECKING([for previous build to clean])
42 "$MAKE" -C "$builddir/src" cleanall >/dev/null 2>/dev/null
46 # ===================================================================
47 # Load feature configuration file and start logging features.
48 # ===================================================================
50 features="features.conf"
51 test -f "$srcdir/$features" && . "$srcdir/$features"
52 test -f "$builddir/$features" && . "$builddir/$features"
53 echo "Feature summary:" > features.log
55 # ===================================================================
56 # Checks for programs.
57 # ===================================================================
60 AC_CHECK_TOOL([LD], [ld])
62 AC_PATH_PROGS(AWK, "$AWK")
66 AC_PATH_PROGS(GIT, "git")
67 AC_PATH_PROGS(SPARSE, "sparse")
74 if test "x$CONFIG_DOC" != xno; then
75 AC_PATH_PROGS(PYTHON, "python")
76 if test "x$PYTHON" != "x"; then
77 EL_CONFIG(CONFIG_ASCIIDOC, [AsciiDoc])
78 EL_CONFIG(MANUAL_ASCIIDOC, [HTML (one file)])
79 EL_CONFIG(MAN_ASCIIDOC, [HTML])
82 AC_PATH_PROGS(XMLTO, "xmlto")
83 if test "x$XMLTO" != "x"; then
84 EL_CONFIG(CONFIG_XMLTO, [XmlTo])
85 EL_CONFIG(MANUAL_XMLTO, [HTML (multiple files)])
86 EL_CONFIG(MAN_XMLTO, [man (groff)])
89 AC_PATH_PROGS(JW, "jw")
90 if test "x$JW" != "x"; then
91 EL_CONFIG(CONFIG_JW, [JadeWrapper])
92 EL_CONFIG(MANUAL_JW, [PDF])
95 AC_PATH_PROGS(POD2HTML, "pod2html")
96 if test "x$POD2HTML" != "x"; then
97 EL_CONFIG(CONFIG_POD2HTML, [Pod2HTML])
100 AC_PATH_PROGS(DOXYGEN, "doxygen")
101 if test "x$DOXYGEN" != "x"; then
102 EL_CONFIG(CONFIG_DOXYGEN, [Doxygen])
103 api_srcdir="$(cd "$srcdir" && pwd)/src"
108 AC_SUBST(CONFIG_ASCIIDOC)
109 AC_SUBST(CONFIG_DOXYGEN)
110 AC_SUBST(CONFIG_POD2HTML)
111 AC_SUBST(CONFIG_XMLTO)
114 EL_CONFIG_DEPENDS(CONFIG_DOC, [CONFIG_ASCIIDOC CONFIG_XMLTO CONFIG_JW CONFIG_POD2HTML], [Documentation Tools])
115 EL_CONFIG_DEPENDS(CONFIG_MANUAL, [MANUAL_ASCIIDOC MANUAL_XMLTO MANUAL_JW], [Manual Formats])
116 EL_CONFIG_DEPENDS(CONFIG_MANPAGE, [MAN_ASCIIDOC MAN_XMLTO], [Man Page Formats])
117 EL_CONFIG_DEPENDS(CONFIG_APIDOCS, [CONFIG_DOXYGEN], [API Documentation])
119 # gcc specific options (to be continued at the bottom of configure)
120 if test "x$ac_cv_c_compiler_gnu" = "xyes"; then
121 # We want to see all warnings and live with none.
122 # We can't set up -Werror here as there may be some warnings in test
123 # suite of configure, and we don't want to fail them.
124 CFLAGS="$CFLAGS -Wall"
127 # ===================================================================
128 # Checks for special OSes.
129 # ===================================================================
131 dnl EL_CHECK_COMPILER_MACRO(define, name, flagname)
132 AC_DEFUN([EL_CHECK_COMPILER_MACROS],
134 AC_MSG_CHECKING([for $2])
137 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[#ifndef $flag
139 #endif ]])],[$1=yes],[$1=no])
140 if test "[$]$1" = yes; then
141 EL_CONFIG([$1], [$2])
149 EL_CHECK_COMPILER_MACROS(CONFIG_OS_BEOS, [BEOS], [__BEOS__])
150 AC_SUBST(CONFIG_OS_BEOS)
152 EL_CHECK_COMPILER_MACROS(CONFIG_OS_RISCOS, [RISCOS], [__riscos__])
153 AC_SUBST(CONFIG_OS_RISCOS)
155 EL_CHECK_COMPILER_MACROS(CONFIG_OS_WIN32, [WIN32], [_WIN32 __WIN32__])
156 AC_SUBST(CONFIG_OS_WIN32)
158 EL_CHECK_COMPILER_MACROS(CONFIG_OS_OS2, [EMX], [__EMX__])
159 AC_SUBST(CONFIG_OS_OS2)
160 test "$CONFIG_OS_OS2" = yes && LDFLAGS=`echo "$LDFLAGS" | sed "s/-Zexe//g"`
162 AC_MSG_CHECKING([for UNIX])
163 dnl FIXME: some depend kind of mechanism
164 if test "$CONFIG_OS_BEOS" = no && \
165 test "$CONFIG_OS_RISCOS" = no && \
166 test "$CONFIG_OS_WIN32" = no && \
167 test "$CONFIG_OS_OS2" = no; then
168 EL_CONFIG(CONFIG_OS_UNIX, [UNIX])
172 AC_MSG_RESULT($CONFIG_OS_UNIX)
173 AC_SUBST(CONFIG_OS_UNIX)
175 # ===================================================================
176 # Checks for header files.
177 # ===================================================================
184 AC_CHECK_HEADERS(wchar.h wctype.h)
185 AC_CHECK_HEADERS(fcntl.h limits.h time.h unistd.h)
186 AC_CHECK_HEADERS(sigaction.h)
187 AC_CHECK_HEADERS(arpa/inet.h)
188 AC_CHECK_HEADERS(netinet/in_systm.h netinet/in_system.h netinet/ip.h)
189 AC_CHECK_HEADERS(netdb.h netinet/in.h netinet/in6_var.h)
190 AC_CHECK_HEADERS(ifaddrs.h)
191 AC_CHECK_HEADERS(sys/cygwin.h io.h)
192 AC_CHECK_HEADERS(sys/fmutex.h)
193 AC_CHECK_HEADERS(sys/ioctl.h sys/sockio.h)
194 AC_CHECK_HEADERS(sys/resource.h)
195 AC_CHECK_HEADERS(sys/select.h)
196 AC_CHECK_HEADERS(sys/signal.h)
197 AC_CHECK_HEADERS(sys/socket.h)
198 AC_CHECK_HEADERS(sys/time.h)
199 AC_CHECK_HEADERS(sys/utsname.h)
200 AC_CHECK_HEADERS([net/if.h], [], [],
201 [[#ifdef HAVE_SYS_SOCKET_H
202 # include <sys/socket.h> /* <net/if.h> on Mac OS X 10.5.4 needs this */
205 AC_CHECK_HEADERS(stdint.h inttypes.h)
206 AC_CHECK_HEADERS(locale.h pwd.h)
207 AC_CHECK_HEADERS(termios.h)
210 AC_CHECK_HEADERS(sys/un.h,
211 [CONFIG_INTERLINK=yes
212 EL_CONFIG([CONFIG_INTERLINK], [interlinking])],
213 [CONFIG_INTERLINK=no])
214 AC_SUBST(CONFIG_INTERLINK)
216 # ===================================================================
217 # Checks for typedefs, structures, and compiler characteristics.
218 # ===================================================================
223 AC_MSG_CHECKING([[for C99-conforming inline]])
241 [AC_MSG_RESULT([[yes]])
242 AC_DEFINE([NONSTATIC_INLINE], [inline],
243 [Define as inline if the compiler lets you declare a function without inline, then define it with inline, and have that definition refer to identifiers with internal linkage. This is allowed by C99 6.7.4p6 and 6.7.4p3 together. Otherwise define as nothing.])],
244 [AC_MSG_RESULT([[no]])
245 AC_DEFINE([NONSTATIC_INLINE], [])])
246 EL_CHECK_CODE(typeof, HAVE_TYPEOF, [], [int a; typeof(a) b;])
251 EL_CHECK_TYPE(ssize_t, int)
252 EL_CHECK_SYS_TYPE(long long, HAVE_LONG_LONG, [])
253 EL_CHECK_SYS_TYPE(off_t, HAVE_OFF_T, [])
254 EL_CHECK_INT_TYPE(int32_t, HAVE_INT32_T)
255 EL_CHECK_INT_TYPE(uint32_t, HAVE_UINT32_T)
256 EL_CHECK_INT_TYPE(uint16_t, HAVE_UINT16_T)
258 AC_CHECK_SIZEOF(char, 1)
259 AC_CHECK_SIZEOF(short, 2)
260 AC_CHECK_SIZEOF(int, 4)
261 AC_CHECK_SIZEOF(long, 4)
262 test "x$HAVE_LONG_LONG" = xyes && AC_CHECK_SIZEOF(long long, 8)
263 test "x$HAVE_OFF_T" = xyes && AC_CHECK_SIZEOF(off_t, 4)
265 # Check for variadic macros
266 EL_CHECK_CODE([variadic macros], HAVE_VARIADIC_MACROS,
268 #define a(b,c...) printf(b,##c)],
269 [a("foo");a("%s","bar");a("%s%s","baz","quux");])
271 # ===================================================================
272 # Checks for library functions.
273 # ===================================================================
275 AC_PROG_GCC_TRADITIONAL
279 AC_CHECK_FUNCS(atoll gethostbyaddr herror strerror)
280 AC_CHECK_FUNCS(popen uname access chmod alarm timegm mremap)
281 AC_CHECK_FUNCS(strcasecmp strncasecmp strcasestr strstr strchr strrchr)
282 AC_CHECK_FUNCS(memmove bcopy stpcpy strdup index isdigit mempcpy memrchr)
283 AC_CHECK_FUNCS(snprintf vsnprintf asprintf vasprintf)
284 AC_CHECK_FUNCS(getifaddrs getpwnam inet_pton inet_ntop)
285 AC_CHECK_FUNCS(fflush fsync fseeko ftello sigaction)
286 AC_CHECK_FUNCS(gettimeofday clock_gettime)
287 AC_CHECK_FUNCS(setitimer, HAVE_SETITIMER=yes)
289 AC_CHECK_FUNCS([cygwin_conv_to_full_win32_path])
291 AC_CHECK_FUNCS(setenv putenv, HAVE_SETENV_OR_PUTENV=yes)
292 AC_CHECK_FUNCS(unsetenv)
293 AC_CHECK_FUNCS(getuid, HAVE_GETUID=yes)
294 AC_CHECK_FUNCS(geteuid, HAVE_GETEUID=yes)
296 AC_CHECK_FUNCS(wcwidth, HAVE_WCWIDTH=yes)
298 # These aren't probably needed now, as they are commented in links.h.
299 # I've no idea about their historical background, but I keep them here
300 # just in the case they will help later. --pasky
301 AC_CHECK_FUNCS(getpid, HAVE_GETPID=yes)
302 AC_CHECK_FUNCS(setpgid getpgid setpgrp getpgrp)
303 AC_CHECK_FUNCS(raise, HAVE_RAISE=yes)
304 AC_CHECK_FUNCS(kill, HAVE_KILL=yes)
306 AC_CHECK_FUNCS(fpathconf, HAVE_FPATHCONF=yes)
308 if test x"$HAVE_RAISE" = x; then
309 if test x"$HAVE_KILL" = x || test x"$HAVE_GETPID" = x; then
310 AC_MSG_ERROR([Unable to emulate raise()])
314 AC_CACHE_CHECK([for __va_copy],el_cv_HAVE_VA_COPY,[
315 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
316 va_list ap1,ap2;]], [[__va_copy(ap1,ap2);]])],[el_cv_HAVE_VA_COPY=yes],[el_cv_HAVE_VA_COPY=no])])
317 if test x"$el_cv_HAVE_VA_COPY" = x"yes"; then
318 EL_DEFINE(HAVE_VA_COPY, __va_copy)
321 AC_CACHE_CHECK([for sysconf(_SC_PAGE_SIZE)],el_cv_HAVE_SC_PAGE_SIZE,[
322 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h>
323 ]], [[int page_size = sysconf(_SC_PAGE_SIZE);]])],[el_cv_HAVE_SC_PAGE_SIZE=yes],[el_cv_HAVE_SC_PAGE_SIZE=no])])
324 if test x"$el_cv_HAVE_SC_PAGE_SIZE" = x"yes"; then
325 EL_DEFINE(HAVE_SC_PAGE_SIZE, _SC_PAGE_SIZE)
328 AC_CACHE_CHECK([for C99 vsnprintf],el_cv_HAVE_C99_VSNPRINTF,[
329 AC_RUN_IFELSE([AC_LANG_SOURCE([[
337 int bar(char *buf, const char *format, va_list ap)
339 return vsnprintf(buf, 0, format, ap);
342 void foo(const char *format, ...) {
346 va_start(ap, format);
347 len = bar(buf, format, ap);
349 if ((len != 6) && (len != 7)) exit(1); /* \n -> \r\n */
351 va_start(ap, format);
352 len = bar(buf, format, ap);
354 if ((len != 6) && (len != 7)) exit(1);
356 if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) exit(1);
360 main() { foo("hello\n"); }
361 ]])],[el_cv_HAVE_C99_VSNPRINTF=yes],[el_cv_HAVE_C99_VSNPRINTF=no],[el_cv_HAVE_C99_VSNPRINTF=cross])])
362 if test x"$el_cv_HAVE_C99_VSNPRINTF" = x"yes"; then
363 EL_DEFINE(HAVE_C99_VSNPRINTF, [C99 compliant vsnprintf()])
366 # OpenSSL and Lua frequently need dlopen
367 AC_CHECK_LIB(dl, dlopen)
369 # ===================================================================
370 # Checks for libraries.
371 # ===================================================================
373 AC_CHECK_FUNC(socket, cf_result=yes, cf_result=no)
374 if test "$cf_result" = no; then
375 AC_CHECK_LIB(socket, socket)
378 AC_CHECK_FUNC(setsockopt, cf_result=yes, cf_result=no)
379 if test "$cf_result" = no; then
380 AC_CHECK_LIB(socket, setsockopt)
383 AC_CHECK_FUNC(gethostbyname, cf_result=yes, cf_result=no)
384 if test "$cf_result" = no; then
385 AC_CHECK_LIB(socket, gethostbyname, cf_result=yes, cf_result=no)
386 if test "$cf_result" = no; then
387 AC_CHECK_LIB(nsl, gethostbyname)
389 test -z "`echo $LIBS | grep -- -lsocket`" && LIBS="$LIBS -lsocket"
393 # ===================================================================
394 # Checks for packaging specific options.
395 # ===================================================================
397 AC_ARG_WITH(xterm, [ --with-xterm how to invoke the X terminal emulator],
398 [ if test "$withval" != no && test "$withval" != yes; then
399 AC_DEFINE_UNQUOTED(XTERM, "$withval", [How to invoke XTerm])
402 # ===================================================================
403 # Checks for a libraries, optional even if installed.
404 # ===================================================================
406 dnl EL_CHECK_OPTIONAL_LIBRARY(define, name, header, lib, function)
407 AC_DEFUN([EL_CHECK_OPTIONAL_LIBRARY],
409 AC_MSG_CHECKING([for $2 support])
411 if test "[$]$1" != no; then
414 if test -n "$withval" && test -d "$withval"; then
415 # Be a little more careful when setting
416 # include and lib directories. This way
417 # $withval will work when includes are
418 # there but the library is in the common
419 # /usr/lib ... Does the right thing when
420 # looking for gc on Debian.
421 if test -d "$withval/include"; then
422 CFLAGS="$CFLAGS -I$withval/include"
423 CPPFLAGS="$CPPFLAGS -I$withval/include"
425 CFLAGS="$CFLAGS -I$withval"
426 CPPFLAGS="$CPPFLAGS -I$withval"
428 if test -d "$withval/lib"; then
429 LDFLAGS="$LDFLAGS -L$withval/lib"
433 AC_CHECK_HEADERS([$3], [$1=yes], [$1=no; break;])
434 if test "[$]$1" = yes; then
435 AC_CHECK_LIB([$4], [$5], [$1=yes], [$1=no])
438 if test "[$]$1" = yes; then
439 EL_CONFIG([$1], [$2])
442 if test -n "[$]WITHVAL_$1" &&
443 test "[$]WITHVAL_$1" != xno; then
444 AC_MSG_ERROR([$2 not found])
449 AC_MSG_RESULT(disabled)
453 dnl EL_CONFIG_OPTIONAL_LIBRARY(define, name, header, lib, function, confhelp)
454 AC_DEFUN([EL_CONFIG_OPTIONAL_LIBRARY],
456 if test "x[$]$1" != xno; then $1=yes; fi
459 AC_ARG_WITH([$2], [$6], [WITHVAL_$1="[$]withval"])
460 if test "x[$]WITHVAL_$1" = xno; then $1=no; fi
461 if test "x[$]WITHVAL_$1" = xyes; then $1=yes; fi
463 EL_CHECK_OPTIONAL_LIBRARY([$1], [$2], [$3], [$4], [$5])
465 EL_LOG_CONFIG([$1], [$2], [])
468 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_GPM, gpm, gpm.h, gpm, Gpm_Open,
469 [ --without-gpm disable gpm (mouse) support])
471 # ELinks calls deflateInit2 with windowBits = MAX_WBITS | 32, to
472 # enable automatic decoding of both zlib and gzip headers. This
473 # feature was added in zlib 1.2.0.2; earlier versions return an error.
474 # The gzclearerr function was also added in zlib 1.2.0.2, so check for
475 # that, even though ELinks does not actually call gzclearerr.
476 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_GZIP, zlib, zlib.h, z, gzclearerr,
477 [ --without-zlib disable zlib support])
479 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_BZIP2, bzlib, bzlib.h, bz2, BZ2_bzReadOpen,
480 [ --without-bzlib disable bzlib support])
482 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_IDN, idn, idna.h, idn, stringprep_check_version,
483 [ --without-idn disable international domain names support])
485 if test "x${with_gc}" != xno; then
486 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_GC, gc, gc.h, gc, GC_init,
487 [ --with-gc enable Boehm's garbage collector])
490 # LZMA disabled by default, because of little usability and compilation problems
492 EL_CONFIG_OPTIONAL_LIBRARY(CONFIG_LZMA, lzma, lzma.h, lzma, lzma_code,
493 [ --with-lzma enable lzma encoding support])
495 # ===================================================================
496 # Check for GSSAPI, optional even if installed.
497 # ===================================================================
501 AC_ARG_WITH(gssapi, [ --with-gssapi enable GSSAPI support],
502 [ if test "x$withval" != xno; then enable_gssapi=yes; fi ])
504 AC_MSG_CHECKING([for GSSAPI])
506 if test "$enable_gssapi" = "yes"; then
508 GSSAPI_CFLAGS=`krb5-config --cflags gssapi`
509 GSSAPI_LIBS=`krb5-config --libs gssapi`
510 CFLAGS="$GSSAPI_CFLAGS $CFLAGS"
511 LIBS="$GSSAPI_LIBS $LIBS"
512 EL_CONFIG(CONFIG_GSSAPI, [GssApi])
517 AC_SUBST(CONFIG_GSSAPI)
519 # ===================================================================
520 # Bookmark and XBEL support
521 # ===================================================================
525 EL_ARG_ENABLE(CONFIG_BOOKMARKS, bookmarks, [Bookmarks],
526 [ --disable-bookmarks disable bookmark support])
528 # Check whether --enable-xbel or --disable-xbel was given.
529 if test "x${enable_xbel}" != xno; then
530 AC_CHECK_HEADERS(expat.h, HAVE_LIBEXPAT=yes, HAVE_LIBEXPAT=no)
532 if test "$HAVE_LIBEXPAT" = yes; then
533 AC_CHECK_LIB(expat, XML_ParserCreate, HAVE_LIBEXPAT=yes, HAVE_LIBEXPAT=no)
534 if test "$HAVE_LIBEXPAT" = yes; then
541 EL_ARG_DEPEND(CONFIG_XBEL_BOOKMARKS, xbel, [CONFIG_BOOKMARKS:yes HAVE_LIBEXPAT:yes],
543 [ --disable-xbel disable XBEL bookmark support (requires expat)])
545 if test "$CONFIG_XBEL_BOOKMARKS" != yes; then
549 # ===================================================================
550 # Checks for BSD sysmouse
551 # ===================================================================
553 HAVE_SYSMOUSE_HEADER="no"
555 # Either of these header files provides the (same) sysmouse interface
556 AC_CHECK_HEADERS(sys/consio.h machine/console.h, [HAVE_SYSMOUSE_HEADER="yes"])
558 # ===================================================================
560 # ===================================================================
562 if test "$CONFIG_OS_OS2" = yes; then
566 # ===================================================================
568 # ===================================================================
570 if test "$CONFIG_OS_WIN32" = yes; then
574 # ===================================================================
575 # Check for SEE (Simple Ecmascript Engine)
576 # ===================================================================
577 AC_ARG_WITH(see, [ --with-see enable Simple Ecmascript Engine (SEE) support],
578 [ if test "x$withval" != xno; then enable_see=yes; fi ])
580 # The following is probably bad, ugly and so on. Stolen from Guile's (1.4)
581 # GUILE_FLAGS but I really don't want to require people to have Guile in order
582 # to compile CVS. Also, the macro seems to be really stupid regarding searching
583 # for Guile in $PATH etc. --pasky
585 CONFIG_ECMASCRIPT_SEE=no
587 if test "$enable_see" = "yes"; then
588 if test -d "$withval"; then
589 SEE_PATH="$withval:$PATH"
594 AC_PATH_PROG(SEE_CONFIG, libsee-config, no, $SEE_PATH)
595 AC_MSG_CHECKING([for SEE (2.0.1131 or later)])
596 if test "$SEE_CONFIG" != no; then
598 SEE_LIBS="`$SEE_CONFIG --libs`"
599 SEE_CFLAGS="`$SEE_CONFIG --cppflags`"
600 CPPFLAGS="$SEE_CFLAGS $CPPFLAGS"
601 LIBS="$SEE_LIBS $LIBS_X"
602 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <see/see.h>]], [[#if SEE_VERSION_API_MAJOR < 2
605 ]])],[cf_result=yes],[cf_result=no])
607 if test "$cf_result" = yes; then
608 LIBS="$SEE_LIBS $LIBS"
609 EL_CONFIG(CONFIG_ECMASCRIPT_SEE, [SEE])
612 AC_MSG_RESULT($cf_result)
614 if test -n "$withval" && test "x$withval" != xno; then
615 AC_MSG_ERROR([SEE not found])
617 AC_MSG_WARN([SEE support disabled])
622 # ===================================================================
623 # Check for SpiderMonkey, optional even if installed.
624 # ===================================================================
628 AC_ARG_WITH(xulrunner_includes, [ --with-xulrunner_includes=DIR
629 When set, the libmozjs of xulrunner is used instead of "standalone" SpiderMonkey],
630 [xulrunner_includes="$withval"])
631 AC_ARG_WITH(xulrunner_libs, [ --with-xulrunner_libs=OPTIONS
632 Linker options for xulrunner,
633 eg. --with-xulrunner_libs="-Wl,-R/usr/lib/xulrunner -L/usr/lib/xulrunner -lmozjs"],
634 [xulrunner_libs="$withval"])
635 AC_ARG_WITH(spidermonkey, [ --without-spidermonkey disable SpiderMonkey Mozilla JavaScript engine support],
636 [if test "$withval" = no; then disable_spidermonkey=yes; fi])
638 AC_MSG_CHECKING([for SpiderMonkey (1.5 RC3a or later)])
643 if test -z "$disable_spidermonkey"; then
644 if test ! -d "$withval"; then
647 if test ! -z "$xulrunner_includes"; then
648 SPIDERMONKEY_LIBS="$xulrunner_libs"
649 SPIDERMONKEY_CFLAGS="-I$xulrunner_includes"
650 LIBS="$SPIDERMONKEY_LIBS $LIBS_X"
651 CFLAGS="$CFLAGS_X $SPIDERMONKEY_CFLAGS"
652 CPPFLAGS="$CPPFLAGS_X $SPIDERMONKEY_CFLAGS"
654 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#define XP_UNIX
655 #include <jsapi.h>]], [[
662 [cf_result=yes],[cf_result=no])
664 for spidermonkeydir in "$withval" "" /usr /usr/local /opt/spidermonkey /opt/js; do
665 for spidermonkeyinclude in "/include" "/include/js" "/include/smjs" "/include/mozjs"; do
666 for spidermonkeylib in js smjs mozjs; do
667 if test "$cf_result" = no; then
668 SPIDERMONKEY_LIBS="-L$spidermonkeydir/lib -l$spidermonkeylib"
669 SPIDERMONKEY_CFLAGS="-I$spidermonkeydir$spidermonkeyinclude"
671 LIBS="$SPIDERMONKEY_LIBS $LIBS_X"
672 CFLAGS="$CFLAGS_X $SPIDERMONKEY_CFLAGS"
673 CPPFLAGS="$CPPFLAGS_X $SPIDERMONKEY_CFLAGS"
675 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#define XP_UNIX
677 #include <jsapi.h>]], [[
684 [cf_result=yes],[cf_result=no])
692 AC_MSG_RESULT($cf_result)
693 CONFIG_SPIDERMONKEY="$cf_result"
694 if test "$cf_result" = "yes"; then
695 AC_CHECK_FUNCS([[JS_ReportAllocationOverflow]])
696 AC_CHECK_FUNCS(JS_SetBranchCallback)
697 AC_CHECK_FUNCS(JS_TriggerOperationCallback, HAVE_JS_TRIGGEROPERATIONCALLBACK=yes)
701 if test "x$CONFIG_SPIDERMONKEY" = xyes &&
702 test "x$CONFIG_ECMASCRIPT_SEE" != xyes; then
703 EL_CONFIG(CONFIG_ECMASCRIPT_SMJS, [SpiderMonkey document scripting])
705 CONFIG_ECMASCRIPT_SMJS=no
708 EL_CONFIG_DEPENDS(CONFIG_ECMASCRIPT, [CONFIG_ECMASCRIPT_SEE CONFIG_ECMASCRIPT_SMJS], [ECMAScript (JavaScript)])
709 AC_SUBST(CONFIG_ECMASCRIPT_SEE)
710 AC_SUBST(CONFIG_ECMASCRIPT_SMJS)
712 if test "x$CONFIG_ECMASCRIPT_SMJS" = xyes &&
713 test "x$HAVE_JS_TRIGGEROPERATIONCALLBACK" = xyes &&
714 test "x$HAVE_SETITIMER" = xyes; then
715 EL_CONFIG(CONFIG_ECMASCRIPT_SMJS_HEARTBEAT, [ECMAScript heartbeat support])
717 CONFIG_ECMASCRIPT_SMJS_HEARTBEAT=no
719 AC_SUBST(CONFIG_ECMASCRIPT_SMJS_HEARTBEAT)
722 # ===================================================================
723 # Optional Spidermonkey-based ECMAScript browser scripting
724 # ===================================================================
726 AC_ARG_ENABLE(sm-scripting,
727 [ --disable-sm-scripting ECMAScript browser scripting (requires Spidermonkey)],
728 [if test "$enableval" != no; then enableval="yes"; fi
729 CONFIG_SCRIPTING_SPIDERMONKEY="$enableval";])
731 if test "x$CONFIG_SPIDERMONKEY" = xyes &&
732 test "x$CONFIG_SCRIPTING_SPIDERMONKEY" = xyes; then
733 EL_CONFIG(CONFIG_SCRIPTING_SPIDERMONKEY, [SpiderMonkey])
735 CONFIG_SCRIPTING_SPIDERMONKEY=no
738 if test "x$CONFIG_ECMASCRIPT_SMJS" = xyes ||
739 test "x$CONFIG_SCRIPTING_SPIDERMONKEY" = xyes; then
740 LIBS="$LIBS $SPIDERMONKEY_LIBS"
741 AC_SUBST(SPIDERMONKEY_LIBS)
742 AC_SUBST(SPIDERMONKEY_CFLAGS)
743 AC_SUBST(CONFIG_SPIDERMONKEY)
746 # ===================================================================
747 # Check for Guile, optional even if installed.
748 # ===================================================================
752 AC_ARG_WITH(guile, [ --with-guile enable Guile support],
753 [ if test "x$withval" != xno; then enable_guile=yes; fi ])
755 # The following is probably bad, ugly and so on. Stolen from Guile's (1.4)
756 # GUILE_FLAGS but I really don't want to require people to have Guile in order
757 # to compile CVS. Also, the macro seems to be really stupid regarding searching
758 # for Guile in $PATH etc. --pasky
760 AC_MSG_CHECKING([for Guile])
762 if test "$enable_guile" = "yes"; then
764 ## Based on the GUILE_FLAGS macro.
766 if test -d "$withval"; then
767 GUILE_PATH="$withval:$PATH"
772 AC_PATH_PROG(GUILE_CONFIG, guile-config, no, $GUILE_PATH)
774 ## First, let's just see if we can find Guile at all.
775 if test "$GUILE_CONFIG" != no; then
778 GUILE_LIBS="`guile-config link`"
779 GUILE_CFLAGS="`guile-config compile`"
780 LIBS="$GUILE_LIBS $LIBS"
781 EL_CONFIG(CONFIG_SCRIPTING_GUILE, [Guile])
782 AC_SUBST(GUILE_CFLAGS)
784 ***********************************************************************
785 The Guile support is incomplete and not so well integrated to ELinks
786 yet. That means, e.g., that you have no Guile console and there might
787 not be all the necessary hooks. Also, the Guile interface is not too
788 well tested (success stories heartily welcomed!). See
789 src/scripting/guile/README for further details and hints.
790 ***********************************************************************
793 if test -n "$withval" && test "x$withval" != xno; then
794 AC_MSG_ERROR([Guile not found])
796 AC_MSG_WARN([Guile support disabled])
803 # ===================================================================
805 # ===================================================================
808 AC_ARG_WITH(perl, [ --with-perl enable Perl support],
810 if test "$withval" = yes; then
811 # FIXME: If withval is a valid directory append it to PATH
812 # so that you can specify one of several perl installations.
818 AC_MSG_CHECKING([for Perl])
824 if test "$enable_perl" = "yes"; then
825 PERL_LIBS="`perl -MExtUtils::Embed -e ldopts`"
826 PERL_CFLAGS="`perl -MExtUtils::Embed -e ccopts`"
827 LIBS="$PERL_LIBS $LIBS"
828 CFLAGS="$PERL_CFLAGS $CFLAGS"
829 CPPFLAGS="$CPPFLAGS $PERL_CFLAGS"
830 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
834 ]], [[PerlInterpreter *my_perl = perl_alloc();]])],[cf_result=yes],[cf_result=no])
837 if test "$cf_result"; then AC_MSG_RESULT($cf_result); fi
839 AC_MSG_CHECKING([whether POPpx works without an n_a variable])
840 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
843 extern PerlInterpreter *my_perl;
844 ]], [[dSP; (void) POPpx;]])],[AC_MSG_RESULT([yes])
845 AC_DEFINE([CONFIG_PERL_POPPX_WITHOUT_N_A], [1],
846 [Define if using Perl 5.8.8 or later, where the "POPpx" macro
847 no longer needs an "n_a" variable like it did in 5.8.7])],[AC_MSG_RESULT([no])])
849 if test "$cf_result" != "yes"; then
852 EL_CONFIG(CONFIG_SCRIPTING_PERL, [Perl])
855 CPPFLAGS="$CPPFLAGS_X"
857 AC_SUBST(PERL_CFLAGS)
860 # ===================================================================
862 # ===================================================================
865 AC_ARG_WITH(python, [[ --with-python[=DIR] enable Python support]],
866 [ if test "x$withval" != xno; then enable_python=yes; fi ])
871 AC_MSG_CHECKING([for Python])
873 if test "$enable_python" = "yes"; then
876 if test -d "$withval"; then
877 PYTHON_PATH="$withval:$PATH"
882 AC_PATH_PROG(PYTHON, python, no, $PYTHON_PATH)
884 if test "$PYTHON" != no; then
887 PYTHON_CFLAGS="`$PYTHON -c 'from distutils import sysconfig; print "-I%s -I%s" % (sysconfig.get_python_inc(), sysconfig.get_python_inc(plat_specific=True))'`"
888 PYTHON_LIBS="`$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"))'`"
889 LIBS="$PYTHON_LIBS $LIBS"
890 CPPFLAGS="$CPPFLAGS $PYTHON_CFLAGS"
891 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <Python.h>]], [[Py_Initialize();]])],[cf_result=yes],[cf_result=no])
893 if test "$cf_result" != "yes"; then
896 EL_CONFIG(CONFIG_SCRIPTING_PYTHON, [Python])
897 AC_SUBST(PYTHON_LIBS)
898 AC_SUBST(PYTHON_CFLAGS)
899 CPPFLAGS="$CPPFLAGS_X"
901 ***********************************************************************
902 The Python support is incomplete and not so well integrated to ELinks
903 yet. That means, e.g., that you have no Python console and there might
904 not be all the necessary hooks. Also, the Python interface is not too
905 well tested (success stories heartily welcomed!).
906 ***********************************************************************
910 if test -n "$withval" && test "x$withval" != xno; then
911 AC_MSG_ERROR([Python not found])
913 AC_MSG_WARN([Python support disabled])
921 # ===================================================================
922 # Check for Lua, optional even if installed.
923 # ===================================================================
925 # Do this the long way, as FreeBSD reportedly needs -L<dir> for
926 # anything other than /usr/lib, and Lua is very often in /usr/local/lib.
928 AC_ARG_WITH(lua, [ --without-lua disable Lua support],
929 [if test "$withval" = no; then disable_lua=yes; fi])
930 AC_MSG_CHECKING([for Lua])
935 if test -z "$disable_lua"; then
936 if test ! -d "$withval"; then
939 for luadir in "$withval" "" /usr /usr/local; do
940 for suffix in "" 5.1 51; do
941 if test "$cf_result" = no && ( test -f "$luadir/include/lua.h" || \
942 test -f "$luadir/include/lua$suffix/lua.h" ) ; then
943 LUA_LIBS="-L$luadir/lib -llua$suffix -lm"
944 LUA_CFLAGS="-I$luadir/include -I$luadir/include/lua$suffix"
946 LIBS="$LUA_LIBS $LIBS_X"
947 CFLAGS="$CFLAGS_X $LUA_CFLAGS"
948 CPPFLAGS="$CPPFLAGS_X $LUA_CFLAGS"
950 # Check that it is a compatible Lua version
951 AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include <lauxlib.h>]
954 ], [[ lua_State *L = luaL_newstate();
956 lua_pushboolean(L, 1);
957 lua_close(L);]])],[cf_result=yes],[cf_result=no])
963 AC_MSG_RESULT($cf_result)
965 if test "$cf_result" != yes; then
968 EL_CONFIG(CONFIG_SCRIPTING_LUA, [Lua])
969 AC_CHECK_HEADERS(lauxlib.h)
972 CPPFLAGS="$CPPFLAGS_X"
977 # ===================================================================
978 # Check for TRE library
979 # ===================================================================
981 # This section only checks that --without-tre is not given and the
982 # library seems to work, and sets TRE_CFLAGS, TRE_LIBS, and
983 # tre_log. It does not define CONFIG_TRE, and always resets
984 # LIBS and CFLAGS back to their original values.
986 # After any --enable-utf-8 and --disable-utf-8 options have been
987 # handled, a separate section decides whether to actually use TRE.
989 # tre version 0.8.0 or higher is required which have the "tre_" prefix
992 AC_ARG_WITH([[tre]], [[ --without-tre disable TRE regex search support]])
993 if test "$with_tre" = no; then
994 AC_MSG_CHECKING([[for TRE]])
995 AC_MSG_RESULT([[disabled]])
996 tre_log="no (explicitly disabled)"
998 AC_MSG_CHECKING([[for TRE in pkg-config]])
999 if pkg-config tre; then
1000 TRE_CFLAGS=`pkg-config --cflags tre`
1001 TRE_LIBS=`pkg-config --libs tre`
1002 AC_MSG_RESULT([[yes]])
1004 # <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513055>
1005 # "libtre-dev: /usr/lib/pkgconfig/tre.pc missing"
1006 # so we look for the library even if pkg-config doesn't know about it.
1009 AC_MSG_RESULT([[no, but let's try defaults]])
1012 AC_MSG_CHECKING([[for TRE header and library]])
1014 CFLAGS="$TRE_CFLAGS $CFLAGS"
1015 LIBS="$TRE_LIBS $LIBS" # must be first, because of regfree conflict
1016 AC_TRY_LINK([#include <tre/tre.h>],
1018 regmatch_t match[1];
1019 tre_regwcomp(&re, L"zap", REG_ICASE);
1020 tre_regwexec(&re, L"ELIZAPROGRAM", 1, match, 0);],
1021 [AC_MSG_RESULT([[yes]])
1022 tre_log="available"],
1023 [AC_MSG_RESULT([[no]])
1024 tre_log="no (TRE not found)"])
1028 # ===================================================================
1029 # Check for Ruby, optional even if installed.
1030 # ===================================================================
1032 EL_CONFIG_SCRIPTING_RUBY
1034 # ===================================================================
1035 # Setup global scripting
1036 # ===================================================================
1038 EL_CONFIG_DEPENDS(CONFIG_SCRIPTING, [CONFIG_SCRIPTING_GUILE CONFIG_SCRIPTING_LUA CONFIG_SCRIPTING_PERL CONFIG_SCRIPTING_PYTHON CONFIG_SCRIPTING_RUBY CONFIG_SCRIPTING_SPIDERMONKEY], [Browser scripting])
1039 AC_SUBST(CONFIG_SCRIPTING_GUILE)
1040 AC_SUBST(CONFIG_SCRIPTING_LUA)
1041 AC_SUBST(CONFIG_SCRIPTING_PERL)
1042 AC_SUBST(CONFIG_SCRIPTING_PYTHON)
1043 AC_SUBST(CONFIG_SCRIPTING_RUBY)
1044 AC_SUBST(CONFIG_SCRIPTING_SPIDERMONKEY)
1045 AC_SUBST(CONFIG_SCRIPTING)
1048 # ===================================================================
1049 # Check for SSL support.
1050 # ===================================================================
1052 # We by default use OpenSSL, and we always prefer it. However, when GNUTLS
1053 # is enabled, we won't try to use OpenSSL anymore.
1055 # For wiping SSL hooks..
1058 chosen_ssl_library=""
1060 AC_ARG_WITH(gnutls, [[ --without-gnutls disable GNUTLS SSL support]])
1061 AC_ARG_WITH(gnutls, [[ --with-gnutls enable GNUTLS SSL support]],
1062 [case "$with_gnutls" in
1064 "yes") chosen_ssl_library="GNUTLS" ;;
1065 *) chosen_ssl_library="GNUTLS"
1066 AC_MSG_WARN([[Support for --with-gnutls=DIR has been removed.
1067 You may have to set the PKG_CONFIG_PATH environment variable instead.]]) ;;
1070 AC_ARG_WITH(openssl, [[ --without-openssl disable OpenSSL support]])
1071 AC_ARG_WITH(openssl, [[ --with-openssl[=DIR] enable OpenSSL support (default)]],
1072 [case "$with_openssl" in
1074 *) chosen_ssl_library="OpenSSL" ;;
1077 AC_ARG_WITH(nss_compat_ossl, [[ --with-nss_compat_ossl[=DIR]
1078 NSS compatibility SSL libraries/include files]],
1079 [case "$with_nss_compat_ossl" in
1081 *) chosen_ssl_library="nss_compat_ossl" ;;
1084 # ---- nss_compat_ossl
1086 if test "$with_nss_compat_ossl" = no; then
1087 # explicitly disabled
1089 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "nss_compat_ossl"; then
1090 # not used, because $chosen_ssl_library was chosen
1092 elif test -z "${with_nss_compat_ossl+set}"; then
1093 # SSL_library_init() in nss_compat_ossl 0.9.2 calls exit(1)
1094 # with no error message if there is no certificate database.
1095 # https://bugzilla.redhat.com/show_bug.cgi?id=463437
1096 # So ELinks uses nss_compat_ossl only if explicitly requested.
1100 if test "$with_nss_compat_ossl" = yes; then
1101 if pkg-config nss; then
1102 CFLAGS="$CFLAGS_X `pkg-config --cflags nss`"
1103 LIBS="$LIBS_X `pkg-config --libs nss`"
1105 with_nss_compat_ossl=no
1108 # Without pkg-config, we'll kludge in some defaults
1109 CFLAGS="$CFLAGS_X -I$with_nss_compat_ossl/include -I/usr/include/nss3 -I/usr/include/nspr4"
1110 LIBS="$LIBS_X -L$with_nss_compat_ossl/lib -lssl3 -lsmime3 -lnss3 -lplds4 -lplc4 -lnspr4 -lpthread -ldl"
1112 AC_CHECK_HEADERS(nss_compat_ossl/nss_compat_ossl.h,, [with_nss_compat_ossl=no], [#define NSS_COMPAT_OSSL_H])
1113 AC_CHECK_LIB(nss_compat_ossl, X509_free,, [with_nss_compat_ossl=no])
1115 if test "$with_nss_compat_ossl" = "no"; then
1118 LIBS="$LIBS -lnss_compat_ossl"
1119 EL_CONFIG(CONFIG_NSS_COMPAT_OSSL, [nss_compat_ossl])
1120 chosen_ssl_library="nss_compat_ossl"
1126 AC_MSG_CHECKING([for OpenSSL])
1130 if test "$with_openssl" = no; then
1131 cf_result="explicitly disabled"
1133 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "OpenSSL"; then
1134 cf_result="not used, because $chosen_ssl_library was chosen"
1138 for ssldir in "$with_openssl" "" /usr /usr/local/openssl \
1139 /usr/lib/openssl /usr/local/ssl \
1140 /usr/local/www /usr/lib/ssl /usr/local \
1141 /usr/pkg /opt /opt/openssl; do
1142 if test "$cf_result" = no; then
1143 if test -d "$ssldir"; then
1144 OPENSSL_CFLAGS="-I$ssldir/include"
1145 LIBS="-L$ssldir/lib -lssl -lcrypto $LIBS_X"
1146 CFLAGS="$CFLAGS_X $OPENSSL_CFLAGS"
1147 CPPFLAGS="$CPPFLAGS_X $OPENSSL_CFLAGS"
1148 # # FIXME: This created serious portability problems. --pasky
1149 # if test "$CC" == "gcc"; then
1150 # # I'm not sure about compatibility here. --pasky
1151 # LIBS="$LIBS -R$ssldir/lib"
1154 LIBS="-lssl -lcrypto $LIBS_X"
1156 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <openssl/ssl.h>]], [[OpenSSL_add_all_algorithms()]])],[cf_result=yes],[cf_result=no])
1157 if test "$cf_result" != yes; then
1158 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <openssl/ssl.h>]], [[SSLeay_add_ssl_algorithms()]])],[cf_result=yes],[cf_result=no])
1163 if test "$cf_result" != yes; then
1164 if test "${with_openssl-no}" != "no"; then
1165 AC_MSG_ERROR([OpenSSL not found])
1169 EL_CONFIG(CONFIG_OPENSSL, [OpenSSL])
1170 chosen_ssl_library="OpenSSL"
1173 AC_SUBST(OPENSSL_CFLAGS)
1177 AC_MSG_RESULT($cf_result)
1181 # GnuTLS 2.2.0 changed libgnutls-openssl from GPLv2+
1182 # to GPLv3+. Don't link that with the GPLv2 ELinks.
1183 # ELinks will use its internal MD5 code instead.
1184 CONFIG_GNUTLS_OPENSSL_COMPAT=no
1186 if test "$with_gnutls" = no; then
1187 AC_MSG_CHECKING([[for GNUTLS]])
1188 AC_MSG_RESULT([[explicitly disabled]])
1190 elif test -n "$chosen_ssl_library" && test "$chosen_ssl_library" != "GNUTLS"; then
1191 AC_MSG_CHECKING([[for GNUTLS]])
1192 AC_MSG_RESULT([[not used, because $chosen_ssl_library was chosen]])
1196 AC_MSG_CHECKING([[for GNUTLS (1.2 or later) in pkg-config]])
1197 if pkg-config --atleast-version=1.2 gnutls; then
1198 GNUTLS_CFLAGS=`pkg-config --cflags gnutls`
1199 GNUTLS_LIBS=`pkg-config --libs gnutls`
1200 AC_MSG_RESULT([[yes: $GNUTLS_CFLAGS $GNUTLS_LIBS]])
1203 LIBS="$GNUTLS_LIBS $LIBS"
1204 CFLAGS="$CFLAGS $GNUTLS_CFLAGS"
1205 CPPFLAGS="$CPPFLAGS $GNUTLS_CFLAGS"
1207 # Verify if it's really usable. gnutls_session was
1208 # renamed to gnutls_session_t before GNU TLS 1.2.0
1209 # (on 2004-06-13); ELinks now requires this.
1210 AC_MSG_CHECKING([[whether GNUTLS can be linked with]])
1211 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <gnutls/gnutls.h>]],
1212 [[gnutls_session_t dummy;
1213 gnutls_check_version(NULL)]])],
1216 AC_MSG_RESULT([[$cf_result]])
1218 if test "$cf_result" = yes; then
1219 # According to gnutls/NEWS, the function was originally
1220 # added as gnutls_set_default_priority2 in GNUTLS 2.1.4
1221 # (released 2007-10-27) and then renamed to
1222 # gnutls_priority_set_direct in GNUTLS 2.1.7 (released
1224 AC_CHECK_FUNCS([gnutls_priority_set_direct])
1229 AC_MSG_RESULT([[$cf_result]])
1232 if test "$cf_result" = yes; then
1233 EL_CONFIG(CONFIG_GNUTLS, [GNUTLS])
1234 chosen_ssl_library="GNUTLS"
1236 LIBS="$GNUTLS_LIBS $LIBS"
1237 AC_SUBST(GNUTLS_CFLAGS)
1239 elif test "${with_gnutls-no}" != "no"; then
1240 AC_MSG_ERROR([[GNUTLS (1.2 or later) not found. ELinks no longer supports GNUTLS 1.1.]])
1246 EL_CONFIG_DEPENDS(CONFIG_SSL, [CONFIG_OPENSSL CONFIG_GNUTLS CONFIG_NSS_COMPAT_OSSL], [SSL])
1247 AC_SUBST(CONFIG_GNUTLS_OPENSSL_COMPAT)
1248 AC_SUBST(CONFIG_OPENSSL)
1249 AC_SUBST(CONFIG_GNUTLS)
1250 AC_SUBST(CONFIG_NSS_COMPAT_OSSL)
1254 AC_MSG_CHECKING([whether to be or not to be])
1255 AC_MSG_RESULT([needs to be determined experimentally])
1257 # ===================================================================
1258 # Check for IPv6 support and related functions.
1259 # ===================================================================
1261 EL_CHECK_NET_TYPE(struct sockaddr_storage, HAVE_SA_STORAGE, [])
1262 EL_CHECK_NET_TYPE(struct sockaddr_in6, HAVE_SA_IN6, [#include <netinet/in.h>])
1263 EL_CHECK_NET_TYPE(struct addrinfo, HAVE_ADDRINFO, [#include <netdb.h>])
1265 AC_CHECK_FUNC(getaddrinfo, HAVE_GETADDRINFO=yes, HAVE_GETADDRINFO=no)
1266 if test "$HAVE_GETADDRINFO" != yes; then
1267 AC_CHECK_LIB(inet6, getaddrinfo, HAVE_GETADDRINFO=yes, HAVE_GETADDRINFO=no)
1268 if test "$HAVE_GETADDRINFO" = yes; then
1269 LIBS="$LIBS -linet6"
1274 # ===================================================================
1275 # Checking for X11 (window title restoring).
1276 # ===================================================================
1279 if test x"$no_x" != xyes; then
1281 if test -n "$x_includes"; then
1282 X_CFLAGS="-I$x_includes"
1283 CPPFLAGS="$CPPLAGS $X_CFLAGS"
1284 CFLAGS="$CFLAGS $X_CFLAGS"
1286 if test -n "$x_libraries"; then
1287 LDFLAGS="$LDFLAGS -L$x_libraries"
1290 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]], [[XrmInitialize()]])],[cf_result=yes],[cf_result=no])
1292 if test "$cf_result" = yes; then
1293 if test -n "$x_libraries"; then
1294 LDFLAGS="$LDFLAGS -L$x_libraries"
1297 EL_DEFINE(HAVE_X11, [X11 for restoring window titles])
1303 # ===================================================================
1304 # Backtraces displaying support.
1305 # ===================================================================
1307 AC_CHECK_HEADERS(execinfo.h, HAVE_EXECINFO=yes, HAVE_EXECINFO=no)
1308 # possible checks for other system-specific means go here
1311 # ===================================================================
1312 # Gettext grey zone. Beware.
1313 # ===================================================================
1315 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"
1319 # iconv is always used
1320 LIBS="$LIBS $LIBICONV"
1322 dnl AC_MSG_CHECKING([how many characters your English alphabet has])
1323 dnl # f33r d4 l33t... I hope it's portable. :)
1324 dnl cf_result=$((48#z - 48#a + 1));
1325 dnl AC_MSG_RESULT($cf_result)
1328 # ===================================================================
1329 # Compile-time features control
1330 # ===================================================================
1332 EL_ARG_ENABLE(CONFIG_COOKIES, cookies, [Cookies],
1333 [ --disable-cookies disable cookie support])
1335 EL_ARG_ENABLE(CONFIG_FORMHIST, formhist, [Form history],
1336 [ --disable-formhist disable form history support])
1338 EL_ARG_ENABLE(CONFIG_GLOBHIST, globhist, [Global history],
1339 [ --disable-globhist disable global history support])
1342 EL_ARG_ENABLE(CONFIG_MAILCAP, mailcap, [Mailcap],
1343 [ --disable-mailcap disable mailcap support])
1345 EL_ARG_ENABLE(CONFIG_MIMETYPES, mimetypes, [Mimetypes files],
1346 [ --disable-mimetypes disable mimetypes files support])
1349 EL_ARG_DEPEND(CONFIG_IPV6, ipv6,
1350 [HAVE_SA_STORAGE:yes HAVE_SA_IN6:yes HAVE_ADDRINFO:yes HAVE_GETADDRINFO:yes],
1352 [ --disable-ipv6 disable IPv6 support])
1354 EL_ARG_ENABLE(CONFIG_BITTORRENT, bittorrent, [BitTorrent protocol],
1355 [ --enable-bittorrent enable BitTorrent protocol support])
1357 EL_ARG_ENABLE(CONFIG_DATA, data, [Data protocol],
1358 [ --disable-data disable data protocol support])
1360 EL_ARG_ENABLE(CONFIG_URI_REWRITE, uri-rewrite, [URI rewriting],
1361 [ --disable-uri-rewrite disable URI rewrite support])
1363 EL_ARG_DEPEND(CONFIG_CGI, cgi, [HAVE_SETENV_OR_PUTENV:yes], [Local CGI],
1364 [ --enable-cgi enable local CGI support])
1366 EL_ARG_ENABLE(CONFIG_FINGER, finger, [Finger protocol],
1367 [ --enable-finger enable finger protocol support])
1369 # ===================================================================
1371 # ===================================================================
1374 if test "x${enable_fsp}" != xno; then
1375 AC_CHECK_HEADERS(fsplib.h, HAVE_FSPLIB=yes, HAVE_FSPLIB=no)
1377 if test "$HAVE_FSPLIB" = yes; then
1378 AC_CHECK_LIB(fsplib, fsp_open_session, HAVE_FSPLIB=yes, HAVE_FSPLIB=no)
1379 if test "$HAVE_FSPLIB" = yes; then
1380 LIBS="$LIBS -lfsplib"
1382 AC_CHECK_LIB(fsp, fsp_open_session, HAVE_FSPLIB=yes, HAVE_FSPLIB=no)
1383 if test "$HAVE_FSPLIB" = yes; then
1390 EL_ARG_DEPEND(CONFIG_FSP, fsp, [HAVE_FSPLIB:yes], [FSP protocol],
1391 [ --enable-fsp enable FSP protocol support])
1393 if test "x$CONFIG_FSP" = xno; then
1397 EL_ARG_ENABLE(CONFIG_FTP, ftp, [FTP protocol],
1398 [ --disable-ftp disable ftp protocol support])
1400 EL_ARG_ENABLE(CONFIG_GOPHER, gopher, [Gopher protocol],
1401 [ --enable-gopher enable gopher protocol support])
1403 EL_ARG_ENABLE(CONFIG_NNTP, nntp, [NNTP protocol],
1404 [ --enable-nntp enable nntp protocol support])
1406 # ===================================================================
1407 # SMB protocol support.
1408 # ===================================================================
1411 if test "x${enable_smb}" != xno; then
1412 AC_CHECK_HEADERS(libsmbclient.h, HAVE_SMBCLIENT=yes, HAVE_SMBCLIENT=no)
1414 if test "$HAVE_SMBCLIENT" = yes; then
1415 AC_CHECK_LIB(smbclient, smbc_init, HAVE_SMBCLIENT=yes, HAVE_SMBCLIENT=no)
1416 if test "$HAVE_SMBCLIENT" = yes; then
1417 LIBS="$LIBS -lsmbclient"
1422 EL_ARG_DEPEND(CONFIG_SMB, smb, [HAVE_SMBCLIENT:yes], [Samba protocol],
1423 [ --enable-smb enable Samba protocol support])
1425 if test "x$CONFIG_SMB" = xno; then
1430 EL_ARG_ENABLE(CONFIG_MOUSE, mouse, [Mouse handling],
1431 [ --disable-mouse disable mouse support])
1433 # GPM mouse is Linux specific, so ...
1435 EL_ARG_DEPEND(CONFIG_SYSMOUSE, sysmouse,
1436 [CONFIG_MOUSE:yes CONFIG_GPM:no HAVE_SYSMOUSE_HEADER:yes],
1438 [ --disable-sysmouse disable BSD sysmouse support])
1440 EL_ARG_ENABLE(CONFIG_88_COLORS, 88-colors, [88 colors],
1441 [ --enable-88-colors enable 88 color support])
1443 EL_ARG_ENABLE(CONFIG_256_COLORS, 256-colors, [256 colors],
1444 [ --enable-256-colors enable 256 color support])
1446 EL_ARG_ENABLE(CONFIG_TRUE_COLOR, true-color, [true color],
1447 [ --enable-true-color enable true color support])
1449 EL_ARG_ENABLE(CONFIG_EXMODE, exmode, [Exmode interface],
1450 [ --enable-exmode enable exmode (CLI) interface])
1452 EL_ARG_ENABLE(CONFIG_LEDS, leds, [LEDs],
1453 [ --disable-leds disable LEDs support])
1455 EL_ARG_ENABLE(CONFIG_MARKS, marks, [Marks],
1456 [ --disable-marks disable document marks support])
1459 EL_ARG_ENABLE(CONFIG_CSS, css, [Cascading Style Sheets],
1460 [ --disable-css disable Cascading Style Sheet support])
1462 EL_ARG_DEPEND(CONFIG_HTML_HIGHLIGHT, html-highlight, [CONFIG_CSS:yes], [HTML highlighting],
1463 [ --enable-html-highlight HTML highlighting using DOM engine])
1465 # Everything in the tree already uses CONFIG_DOM
1466 # so resolve CONFIG_HTML_HIGHLIGHT to CONFIG_DOM
1467 EL_CONFIG_DEPENDS(CONFIG_DOM, [CONFIG_HTML_HIGHLIGHT], [DOM engine])
1469 EL_ARG_DEPEND(CONFIG_BACKTRACE, backtrace, [HAVE_EXECINFO:yes], [Backtrace],
1470 [ --disable-backtrace disable backtrace support])
1472 EL_ARG_DEPEND(CONFIG_NO_ROOT_EXEC, no-root, [HAVE_GETUID:yes HAVE_GETEUID:yes], [No root exec],
1473 [ --enable-no-root enable prevention of usage by root])
1476 EL_ARG_ENABLE(CONFIG_DEBUG, debug, [Debug mode],
1477 [ --enable-debug enable leak debug and internal error checking])
1479 EL_ARG_DEPEND(CONFIG_FASTMEM, fastmem, [CONFIG_DEBUG:no], [Fast mode],
1480 [ --enable-fastmem enable direct use of system allocation functions, not usable with --enable-debug])
1482 EL_ARG_ENABLE(CONFIG_OWN_LIBC, own-libc, [Own libc stubs],
1483 [ --enable-own-libc force use of internal functions instead of those of system libc])
1485 EL_ARG_ENABLE(CONFIG_SMALL, small, [Small binary],
1486 [ --enable-small reduce binary size as far as possible (but see the bottom of doc/small.txt!)])
1488 EL_ARG_ENABLE(CONFIG_UTF8, utf-8, [UTF-8],
1489 [ --disable-utf-8 disable UTF-8 support])
1491 EL_ARG_DEPEND(CONFIG_COMBINE, combining, [CONFIG_UTF8:yes HAVE_WCWIDTH:yes], [Combining characters],
1492 [ --enable-combining support Unicode combining characters (experimental)])
1495 AC_ARG_ENABLE(weehoofooboomookerchoo,
1497 Also check out the features.conf file for more information about features!
1499 [AC_MSG_ERROR(Are you strange, or what?)])
1502 # ===================================================================
1503 # Decide whether to use TRE
1504 # ===================================================================
1506 # This must be done after the CONFIG_UTF8 check above.
1507 # The first part of the TRE check is separate, to get
1508 # the configure --help output in a sensible order.
1510 # After this section, nothing else must be added to the
1511 # beginning of $LIBS.
1513 if test "$tre_log" = "available"; then
1514 if test "$CONFIG_UTF8" = "yes"; then
1515 # When CONFIG_UTF8 and CONFIG_TRE are both defined,
1516 # src/viewer/text/search.c makes a string of
1517 # unicode_val_T and gives it to regwexec(), which
1518 # expects a string of wchar_t. If the unicode_val_T
1519 # and wchar_t types are too different, this won't
1520 # work, so try to detect that and disable regexp
1521 # operations entirely in that case.
1523 # Currently, this code only compares the sizes of the
1524 # types. src/intl/charsets.h defines unicode_val_T as
1525 # uint32_t, so we check whether wchar_t has exactly 32
1526 # bits. But don't use AC_CHECK_SIZEOF for this, because
1527 # there doesn't seem to be a documented way to get the
1528 # result of that for use in the configure script.
1530 # C99 says the implementation can define
1531 # __STDC_ISO_10646__ if wchar_t values match ISO 10646
1532 # (or Unicode) numbers in all locales. Do not check
1533 # that macro here, because it is too restrictive: it
1534 # should be enough for ELinks if the values match in
1535 # the locales where ELinks is actually run.
1536 AC_MSG_CHECKING([[whether wchar_t is exactly 32-bit]])
1537 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1540 int dummy[(sizeof(wchar_t) * CHAR_BIT == 32) ? 1 : -1];]], [])],
1541 [AC_MSG_RESULT([[yes]])
1543 [AC_MSG_RESULT([[no]])
1544 tre_log="no (unsuitable wchar_t)"])
1546 # If UTF-8 is not used, then wchar_t doesn't matter.
1551 if test "$tre_log" = "TRE"; then
1552 AC_DEFINE([CONFIG_TRE], [1],
1553 [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.])
1554 # TRE_CFLAGS will be used only where needed.
1556 # Bug 1081: If both TRE and libc define the regfree function,
1557 # ELinks needs to use the version defined by TRE because
1558 # that's the one compatible with regex_t initialized by the
1559 # regwcomp function of TRE. Therefore put $TRE_LIBS at the
1560 # very beginning of $LIBS so that the linker hopefully finds
1561 # regfree there before it examines libc. In particular,
1562 # $PERL_LIBS appears to often include "-lc".
1564 # This scheme still risks a crash if ELinks is linked with
1565 # some static library that uses GNU <regex.h> extensions that
1566 # TRE does not implement. For example, the library might call
1567 # re_compile_pattern, which is found in GNU libc, and then
1568 # regfree, which is found in TRE and probably crashes with the
1569 # GNU-initialized regex_t. Ways to avoid such crashes:
1571 # - Change TRE so it defines only tre_... functions and does
1572 # not attempt to override the POSIX names by default.
1574 # - Change ELinks to access TRE only via dlopen and dlsym.
1575 # The problem then is how to find the correct file name.
1576 # There might be libtre.so.4 and libtre.so.5 with different
1577 # ABI. How can this configure script detect which of them
1578 # matches the <tre/regex.h> in the include path?
1580 # - Replace the static library with a shared library. At
1581 # least on GNU/Linux, when the shared library is built, the
1582 # linker should note that e.g. regfree is defined in libc
1583 # and has the GLIBC_2.0 version there, and write that
1584 # version string to the shared library as well; because TRE
1585 # does not provide regfree with that version, any regfree
1586 # calls at run time should then get resolved to libc.
1587 LIBS="$TRE_LIBS $LIBS"
1592 AC_SUBST(TRE_CFLAGS)
1594 EL_LOG_CONFIG([CONFIG_TRE], [[Regexp searching]], [[$tre_log]])
1597 # ===================================================================
1598 # Further LDFLAGS tweaks
1599 # ===================================================================
1603 test "$CONFIG_OS_OS2" = yes && LDFLAGS="$LDFLAGS -Zexe"
1604 test "$CONFIG_OS_OS2" = yes && LDFLAGS=`echo "$LDFLAGS" | sed "s/-Zbin-files//g"`
1607 # Check for -rdynamic
1609 # gcc -rdynamic calls ld -export-dynamic, which adds all symbols of
1610 # the executable to its dynamic symbol table. ELinks uses this for
1613 # 1. If ELinks detects a bug, it can try to display a backtrace by
1614 # calling backtrace_symbols_fd() in the GNU libc. The glibc-2.3.6
1615 # manual states users of GNU ld must pass -rdynamic to make the
1616 # symbols available to the program.
1618 # 2. It would eventually be nice to dynamically load shared
1619 # libraries as plugins (bug 73). The plugins must be able to
1620 # call ELinks functions. This can be implemented either by
1621 # registering all callable functions in ELinks-specific data
1622 # structures, or by letting the dynamic linker handle them.
1623 # The latter way requires something equivalent to -rdynamic.
1625 # Because backtraces are not needed for correct operation, and bug
1626 # 73 is not yet being fixed, the configure script and makefiles
1627 # should not complain to the user if they find that -rdynamic does
1628 # not work. Besides, it was reported at elinks-users on 2006-09-12
1629 # that gcc-3.4.2 with "ld: Software Generation Utilities - Solaris
1630 # Link Editors: 5.8-1.284" on Sun Solaris 8 Sparc does not support
1631 # -rdynamic but does something equivalent automatically. (This was
1632 # tested with "nm -D elinks | grep redraw_from_window".)
1634 # With Sun Studio 11 on Solaris 9, we get "cc: Warning: illegal option
1635 # -dynamic"; then, cc proceeds anyway, but the option can prevent the
1636 # linker from finding the libraries listed in -l operands. So this
1637 # -rdynamic check needs to happen after the libraries have already
1638 # been added to $LDFLAGS.
1639 AC_MSG_CHECKING([for -rdynamic])
1640 LDFLAGS_X="$LDFLAGS"
1641 LDFLAGS="-rdynamic $LDFLAGS"
1642 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[have_rdynamic=yes],[have_rdynamic=no])
1643 test "$have_rdynamic" = no && LDFLAGS="$LDFLAGS_X"
1644 AC_MSG_RESULT($have_rdynamic)
1646 # ===================================================================
1647 # Export directory paths
1648 # ===================================================================
1650 # Set up the ``entry points'' if they were not supplied by builder
1651 test "x$prefix" = xNONE && prefix=$ac_default_prefix
1652 test "x$exec_prefix" = xNONE && exec_prefix=${prefix}
1654 # Create CONFDIR #define for config.h
1656 # XXX: This may be dependent on a particular version of autoconf. Whatever,
1657 # it's autoconf fault to force us to do such hacks ;p.
1658 if test x"$sysconfdir" = x"\${prefix}/etc"; then
1659 # sysconfdir is set to its default value... fine, let's append /elinks/
1660 # XXX: We can't modify listing of the default in ./configure --help :-(
1661 sysconfdir_n=`eval echo "$sysconfdir"`
1662 sysconfdir=$sysconfdir_n
1663 (echo "$sysconfdir" | grep elinks >/dev/null 2>/dev/null) || \
1664 sysconfdir="$sysconfdir/elinks"
1668 AC_DEFINE_UNQUOTED(CONFDIR, "$CONFDIR", [Directory containing default config])
1671 # Create LOCALEDIR #define for config.h
1672 LOCALEDIR=`eval echo "$datadir/locale"`
1673 while echo "$LOCALEDIR" | grep "\\$"
1675 LOCALEDIR=`eval echo "$LOCALEDIR"`
1676 done > /dev/null 2> /dev/null
1677 AC_DEFINE_UNQUOTED(LOCALEDIR, "$LOCALEDIR", [Directory containing locales])
1680 # Create LIBDIR #define for config.h
1681 LIBDIR=`eval echo "$libdir"`
1682 AC_DEFINE_UNQUOTED(LIBDIR, "$LIBDIR", [Directory containing libraries])
1685 EL_LOG_CONFIG(CONFDIR, [System configuration directory], [])
1686 EL_LOG_CONFIG(LOCALEDIR, [Locale catalogs directory], [])
1689 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stddef.h>
1690 ]], [[#if !defined(__TINYC__) || !defined(alloca)
1692 #endif ]])],[cf_result=yes],[cf_result=no])
1694 if test "$cf_result" = "yes"; then
1695 AC_DEFINE([HAVE_ALLOCA])
1696 AC_DEFINE([_ALLOCA_H], [1], [Define as 1 if you are using Tiny C Compiler
1697 with the GNU C Library, and <alloca.h> of glibc would otherwise
1698 override the alloca macro defined in <stddef.h> of TCC.
1699 If <alloca.h> of glibc sees the _ALLOCA_H macro, it assumes
1700 it has already been included, and does not redefine alloca.
1701 This might not work in future glibc versions though, because
1702 the names of the #include guard macros are not documented.
1703 The incompatibility has been reported to the tinycc-devel
1704 mailing list on 2008-07-14. If a future version of TCC provides
1705 an <alloca.h> of its own, this hack won't be needed.])
1707 # ===================================================================
1708 # A little fine tuning of gcc specific options (continued)
1709 # ===================================================================
1711 if test "x$ac_cv_c_compiler_gnu" = "xyes"; then
1712 if test "$CONFIG_DEBUG" = "yes"; then
1713 # We want to see all warnings and live with none (in debug mode).
1714 CFLAGS="$CFLAGS -Werror"
1717 case "`$CC -dumpversion`" in
1719 # These should be ok using -Werror
1722 # If gcc is version 3.3 (or higher?) it emits lots of false positive
1723 # "dereferencing type-punned pointer will break strict-aliasing rules"
1724 # warnings. Disable them by not doing any strict-aliasing. The
1725 # alternative is just too ugly. Thanks gcc guys!! ;)
1726 CFLAGS="$CFLAGS -fno-strict-aliasing"
1729 CFLAGS="$CFLAGS -fno-strict-aliasing -Wno-pointer-sign -Wno-enum-compare"
1732 # Do not show warnings related to (char * | unsigned char *) type
1734 CFLAGS="$CFLAGS -fno-strict-aliasing -Wno-pointer-sign"
1737 # These should be ok using -Werror
1741 # GCC 4.2.1 warns if we use the address of an object in Boolean context:
1742 # warning: the address of `builtin_modules' will always evaluate as `true'
1743 # This hits the object_lock and foreach_module macros in particular.
1744 # It would be okay to put something in the macros to avoid the warning,
1745 # but currently this seems to require defining parallel macros that skip
1746 # the NULL check, and that's too ugly. So we instead disable the warning.
1747 # GCC 4.2.1 needs -Wno-address, but GCC 4.2 snapshots need -Wno-always-true.
1748 # GCC 4.1.3 recognizes neither and exits with code 1 if they are given.
1749 for warning_flag in -Wno-address -Wno-always-true; do
1750 AC_MSG_CHECKING([whether $CC accepts $warning_flag])
1752 CFLAGS="$CFLAGS $warning_flag"
1753 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1754 [AC_MSG_RESULT([yes])
1756 [AC_MSG_RESULT([no])])
1760 # Bug 1012: Some parts of ELinks do arithmetic with signed integers
1761 # in such a way that an overflow is possible. GCC 4.2.1 warns
1762 # "warning: assuming signed overflow does not occur when assuming
1763 # that (X + c) > X is always true", which may be an incorrect
1764 # optimization (although allowed by the standard), and breaks the
1765 # build with -Werror.
1767 # All of the following tests included -S -Wall -Wextra:
1769 # GCC: (GNU) 4.0.4 20060507 (prerelease) (Debian 4.0.3-3)
1770 # * gcc-4.0 -O0: OK, compares the values
1771 # * gcc-4.0 -O2: assumes no overflow, does not warn
1772 # * gcc-4.0 -O0 -fno-strict-overflow: unrecognized command line option
1773 # * gcc-4.0 -O0 -fwrapv: OK, compares the values
1774 # * gcc-4.0 -O2 -fwrapv: OK, compares the values
1775 # * gcc-4.0 -O0 -ftrapv: OK, calls __addvsi3
1776 # * gcc-4.0 -O2 -ftrapv: assumes no overflow, does not warn
1777 # * gcc-4.0 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1778 # * gcc-4.0 -O2 -fwrapv -ftrapv: compares the values
1780 # GCC: (GNU) 4.1.3 20070812 (prerelease) (Debian 4.1.2-15)
1781 # * gcc-4.1 -O0: assumes no overflow, does not warn
1782 # * gcc-4.1 -O2: assumes no overflow, does not warn
1783 # * gcc-4.1 -O0 -fno-strict-overflow: unrecognized command line option
1784 # * gcc-4.1 -O0 -fwrapv: OK, compares the values
1785 # * gcc-4.1 -O2 -fwrapv: OK, compares the values
1786 # * gcc-4.1 -O0 -ftrapv: OK, calls __addvsi3
1787 # * gcc-4.1 -O2 -ftrapv: compares the values
1788 # * gcc-4.1 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1789 # * gcc-4.1 -O2 -fwrapv -ftrapv: compares the values
1791 # GCC: (GNU) 4.2.1 (Debian 4.2.1-5)
1792 # * gcc-4.2 -O0: OK, compares the values
1793 # * gcc-4.2 -O2: assumes no overflow, warns about it
1794 # * gcc-4.2 -O0 -fno-strict-overflow: OK, compares the values
1795 # * gcc-4.2 -O2 -fno-strict-overflow: OK, compares the values
1796 # * gcc-4.2 -O0 -fwrapv: OK, compares the values
1797 # * gcc-4.2 -O2 -fwrapv: OK, compares the values
1798 # * gcc-4.2 -O0 -ftrapv: OK, calls __addvsi3
1799 # * gcc-4.2 -O2 -ftrapv: compares the values
1800 # * gcc-4.2 -O0 -fwrapv -ftrapv: OK, calls __addvsi3
1801 # * gcc-4.2 -O2 -fwrapv -ftrapv: compares the values
1803 # Apparently, -ftrapv does not work reliably at all.
1804 for overflow_flag in -fno-strict-overflow -fwrapv; do
1805 AC_MSG_CHECKING([whether $CC accepts $overflow_flag])
1807 CFLAGS="$CFLAGS $overflow_flag"
1808 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1809 [AC_MSG_RESULT([yes])
1811 [AC_MSG_RESULT([no])])
1816 EL_LOG_CONFIG(CFLAGS, [Compiler flags (CFLAGS)], [])
1817 EL_LOG_CONFIG(CPPFLAGS, [Preprocessor flags (CPPFLAGS)], [])
1818 EL_LOG_CONFIG(LDFLAGS, [Linker flags (LDFLAGS)], [])
1819 EL_LOG_CONFIG(LIBS, [Library flags (LIBS)], [])
1821 # ===================================================================
1822 # Colored make output
1823 # ===================================================================
1825 if test $(`which tput` colors) -ge 4; then
1827 AC_SUBST(MAKE_COLOR)
1830 # ===================================================================
1832 # ===================================================================
1836 contrib/elinks.spec \
1837 contrib/lua/hooks.lua \
1838 contrib/conv/w3m2links.awk \
1840 doc/man/man1/elinks.1 \
1841 src/intl/gettext/ref-add.sed \
1842 src/intl/gettext/ref-del.sed
1846 abs_srcdir="$(cd "$srcdir" && pwd)"
1847 # builddir is always absolute!
1848 if test "$abs_srcdir" != "$builddir"; then
1849 # Bootstrap the Makefile creation
1850 echo "include $abs_srcdir/Makefile" > "$builddir/Makefile"
1851 "$MAKE" "SRC=$abs_srcdir" init
1853 # Make cg-status ignore this build directory
1854 echo "*" > "$builddir/.gitignore"
1857 # ===================================================================
1858 # Configuration summary
1859 # ===================================================================
1861 AC_MSG_RESULT(The following feature summary has been saved to features.log)