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Check not just the capture length but the on-the-network length.
[tcpdump] / aclocal.m4
1 dnl @(#) $Header: /tcpdump/master/tcpdump/aclocal.m4,v 1.116 2008-09-25 21:45:50 guy Exp $ (LBL)
2 dnl
3 dnl Copyright (c) 1995, 1996, 1997, 1998
4 dnl The Regents of the University of California. All rights reserved.
5 dnl
6 dnl Redistribution and use in source and binary forms, with or without
7 dnl modification, are permitted provided that: (1) source code distributions
8 dnl retain the above copyright notice and this paragraph in its entirety, (2)
9 dnl distributions including binary code include the above copyright notice and
10 dnl this paragraph in its entirety in the documentation or other materials
11 dnl provided with the distribution, and (3) all advertising materials mentioning
12 dnl features or use of this software display the following acknowledgement:
13 dnl ``This product includes software developed by the University of California,
14 dnl Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
15 dnl the University nor the names of its contributors may be used to endorse
16 dnl or promote products derived from this software without specific prior
17 dnl written permission.
18 dnl THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
19 dnl WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
20 dnl MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21 dnl
22 dnl LBL autoconf macros
23 dnl
24
25 dnl
26 dnl Do whatever AC_LBL_C_INIT work is necessary before using AC_PROG_CC.
27 dnl
28 dnl It appears that newer versions of autoconf (2.64 and later) will,
29 dnl if you use AC_TRY_COMPILE in a macro, stick AC_PROG_CC at the
30 dnl beginning of the macro, even if the macro itself calls AC_PROG_CC.
31 dnl See the "Prerequisite Macros" and "Expanded Before Required" sections
32 dnl in the Autoconf documentation.
33 dnl
34 dnl This causes a steaming heap of fail in our case, as we were, in
35 dnl AC_LBL_C_INIT, doing the tests we now do in AC_LBL_C_INIT_BEFORE_CC,
36 dnl calling AC_PROG_CC, and then doing the tests we now do in
37 dnl AC_LBL_C_INIT. Now, we run AC_LBL_C_INIT_BEFORE_CC, AC_PROG_CC,
38 dnl and AC_LBL_C_INIT at the top level.
39 dnl
40 AC_DEFUN(AC_LBL_C_INIT_BEFORE_CC,
41 [AC_PREREQ(2.50)
42 AC_BEFORE([$0], [AC_LBL_C_INIT])
43 AC_BEFORE([$0], [AC_PROG_CC])
44 AC_BEFORE([$0], [AC_LBL_FIXINCLUDES])
45 AC_BEFORE([$0], [AC_LBL_DEVEL])
46 AC_ARG_WITH(gcc, [ --without-gcc don't use gcc])
47 $1="-O"
48 $2=""
49 if test "${srcdir}" != "." ; then
50 $2="-I$srcdir"
51 fi
52 if test "${CFLAGS+set}" = set; then
53 LBL_CFLAGS="$CFLAGS"
54 fi
55 if test -z "$CC" ; then
56 case "$host_os" in
57
58 bsdi*)
59 AC_CHECK_PROG(SHLICC2, shlicc2, yes, no)
60 if test $SHLICC2 = yes ; then
61 CC=shlicc2
62 export CC
63 fi
64 ;;
65 esac
66 fi
67 if test -z "$CC" -a "$with_gcc" = no ; then
68 CC=cc
69 export CC
70 fi
71 ])
72
73 dnl
74 dnl Determine which compiler we're using (cc or gcc)
75 dnl If using gcc, determine the version number
76 dnl If using cc, require that it support ansi prototypes
77 dnl If using gcc, use -O2 (otherwise use -O)
78 dnl If using cc, explicitly specify /usr/local/include
79 dnl
80 dnl usage:
81 dnl
82 dnl AC_LBL_C_INIT(copt, incls)
83 dnl
84 dnl results:
85 dnl
86 dnl $1 (copt set)
87 dnl $2 (incls set)
88 dnl CC
89 dnl LDFLAGS
90 dnl ac_cv_lbl_gcc_vers
91 dnl LBL_CFLAGS
92 dnl
93 AC_DEFUN(AC_LBL_C_INIT,
94 [AC_PREREQ(2.50)
95 AC_BEFORE([$0], [AC_LBL_FIXINCLUDES])
96 AC_BEFORE([$0], [AC_LBL_DEVEL])
97 AC_BEFORE([$0], [AC_LBL_SHLIBS_INIT])
98 if test "$GCC" = yes ; then
99 if test "$SHLICC2" = yes ; then
100 ac_cv_lbl_gcc_vers=2
101 $1="-O2"
102 else
103 AC_MSG_CHECKING(gcc version)
104 AC_CACHE_VAL(ac_cv_lbl_gcc_vers,
105 ac_cv_lbl_gcc_vers=`$CC -v 2>&1 | \
106 sed -e '/^gcc version /!d' \
107 -e 's/^gcc version //' \
108 -e 's/ .*//' -e 's/^[[[^0-9]]]*//' \
109 -e 's/\..*//'`)
110 AC_MSG_RESULT($ac_cv_lbl_gcc_vers)
111 if test $ac_cv_lbl_gcc_vers -gt 1 ; then
112 $1="-O2"
113 fi
114 fi
115 else
116 AC_MSG_CHECKING(that $CC handles ansi prototypes)
117 AC_CACHE_VAL(ac_cv_lbl_cc_ansi_prototypes,
118 AC_TRY_COMPILE(
119 [#include <sys/types.h>],
120 [int frob(int, char *)],
121 ac_cv_lbl_cc_ansi_prototypes=yes,
122 ac_cv_lbl_cc_ansi_prototypes=no))
123 AC_MSG_RESULT($ac_cv_lbl_cc_ansi_prototypes)
124 if test $ac_cv_lbl_cc_ansi_prototypes = no ; then
125 case "$host_os" in
126
127 hpux*)
128 AC_MSG_CHECKING(for HP-UX ansi compiler ($CC -Aa -D_HPUX_SOURCE))
129 savedcflags="$CFLAGS"
130 CFLAGS="-Aa -D_HPUX_SOURCE $CFLAGS"
131 AC_CACHE_VAL(ac_cv_lbl_cc_hpux_cc_aa,
132 AC_TRY_COMPILE(
133 [#include <sys/types.h>],
134 [int frob(int, char *)],
135 ac_cv_lbl_cc_hpux_cc_aa=yes,
136 ac_cv_lbl_cc_hpux_cc_aa=no))
137 AC_MSG_RESULT($ac_cv_lbl_cc_hpux_cc_aa)
138 if test $ac_cv_lbl_cc_hpux_cc_aa = no ; then
139 AC_MSG_ERROR(see the INSTALL doc for more info)
140 fi
141 CFLAGS="$savedcflags"
142 $1="-Aa $$1"
143 AC_DEFINE(_HPUX_SOURCE,1,[needed on HP-UX])
144 ;;
145
146 osf*)
147 AC_MSG_CHECKING(for ansi mode in DEC compiler ($CC -std1))
148 savedcflags="$CFLAGS"
149 CFLAGS="-std1"
150 AC_CACHE_VAL(ac_cv_lbl_cc_osf1_cc_std1,
151 AC_TRY_COMPILE(
152 [#include <sys/types.h>],
153 [int frob(int, char *)],
154 ac_cv_lbl_cc_osf1_cc_std1=yes,
155 ac_cv_lbl_cc_osf1_cc_std1=no))
156 AC_MSG_RESULT($ac_cv_lbl_cc_osf1_cc_std1)
157 if test $ac_cv_lbl_cc_osf1_cc_std1 = no ; then
158 AC_MSG_ERROR(see the INSTALL doc for more info)
159 fi
160 CFLAGS="$savedcflags"
161 $1="-std1 $$1"
162 ;;
163
164 *)
165 AC_MSG_ERROR(see the INSTALL doc for more info)
166 ;;
167 esac
168 fi
169 $2="$$2 -I/usr/local/include"
170 LDFLAGS="$LDFLAGS -L/usr/local/lib"
171
172 case "$host_os" in
173
174 irix*)
175 $1="$$1 -xansi -signed -O"
176 ;;
177
178 osf*)
179 #
180 # Presumed to be DEC OSF/1, Digital UNIX, or
181 # Tru64 UNIX.
182 #
183 $1="$$1 -O"
184 ;;
185
186 ultrix*)
187 AC_MSG_CHECKING(that Ultrix $CC hacks const in prototypes)
188 AC_CACHE_VAL(ac_cv_lbl_cc_const_proto,
189 AC_TRY_COMPILE(
190 [#include <sys/types.h>],
191 [struct a { int b; };
192 void c(const struct a *)],
193 ac_cv_lbl_cc_const_proto=yes,
194 ac_cv_lbl_cc_const_proto=no))
195 AC_MSG_RESULT($ac_cv_lbl_cc_const_proto)
196 if test $ac_cv_lbl_cc_const_proto = no ; then
197 AC_DEFINE(const,[],
198 [to handle Ultrix compilers that don't support const in prototypes])
199 fi
200 ;;
201 esac
202 fi
203 ])
204
205 #
206 # Try compiling a sample of the type of code that appears in
207 # gencode.c with "inline", "__inline__", and "__inline".
208 #
209 # Autoconf's AC_C_INLINE, at least in autoconf 2.13, isn't good enough,
210 # as it just tests whether a function returning "int" can be inlined;
211 # at least some versions of HP's C compiler can inline that, but can't
212 # inline a function that returns a struct pointer.
213 #
214 # Make sure we use the V_CCOPT flags, because some of those might
215 # disable inlining.
216 #
217 AC_DEFUN(AC_LBL_C_INLINE,
218 [AC_MSG_CHECKING(for inline)
219 save_CFLAGS="$CFLAGS"
220 CFLAGS="$V_CCOPT"
221 AC_CACHE_VAL(ac_cv_lbl_inline, [
222 ac_cv_lbl_inline=""
223 ac_lbl_cc_inline=no
224 for ac_lbl_inline in inline __inline__ __inline
225 do
226 AC_TRY_COMPILE(
227 [#define inline $ac_lbl_inline
228 static inline struct iltest *foo(void);
229 struct iltest {
230 int iltest1;
231 int iltest2;
232 };
233
234 static inline struct iltest *
235 foo()
236 {
237 static struct iltest xxx;
238
239 return &xxx;
240 }],,ac_lbl_cc_inline=yes,)
241 if test "$ac_lbl_cc_inline" = yes ; then
242 break;
243 fi
244 done
245 if test "$ac_lbl_cc_inline" = yes ; then
246 ac_cv_lbl_inline=$ac_lbl_inline
247 fi])
248 CFLAGS="$save_CFLAGS"
249 if test ! -z "$ac_cv_lbl_inline" ; then
250 AC_MSG_RESULT($ac_cv_lbl_inline)
251 else
252 AC_MSG_RESULT(no)
253 fi
254 AC_DEFINE_UNQUOTED(inline, $ac_cv_lbl_inline, [Define as token for inline if inlining supported])])
255
256 dnl
257 dnl Use pfopen.c if available and pfopen() not in standard libraries
258 dnl Require libpcap
259 dnl Look for libpcap in ..
260 dnl Use the installed libpcap if there is no local version
261 dnl
262 dnl usage:
263 dnl
264 dnl AC_LBL_LIBPCAP(pcapdep, incls)
265 dnl
266 dnl results:
267 dnl
268 dnl $1 (pcapdep set)
269 dnl $2 (incls appended)
270 dnl LIBS
271 dnl LBL_LIBS
272 dnl
273 AC_DEFUN(AC_LBL_LIBPCAP,
274 [AC_REQUIRE([AC_LBL_LIBRARY_NET])
275 dnl
276 dnl save a copy before locating libpcap.a
277 dnl
278 LBL_LIBS="$LIBS"
279 pfopen=/usr/examples/packetfilter/pfopen.c
280 if test -f $pfopen ; then
281 AC_CHECK_FUNCS(pfopen)
282 if test $ac_cv_func_pfopen = "no" ; then
283 AC_MSG_RESULT(Using $pfopen)
284 LIBS="$LIBS $pfopen"
285 fi
286 fi
287 AC_MSG_CHECKING(for local pcap library)
288 libpcap=FAIL
289 lastdir=FAIL
290 places=`ls $srcdir/.. | sed -e 's,/$,,' -e "s,^,$srcdir/../," | \
291 egrep '/libpcap-[[0-9]]+\.[[0-9]]+(\.[[0-9]]*)?([[ab]][[0-9]]*|-PRE-GIT)?$'`
292 for dir in $places $srcdir/../libpcap $srcdir/libpcap ; do
293 basedir=`echo $dir | sed -e 's/[[ab]][[0-9]]*$//' | \
294 sed -e 's/-PRE-GIT$//' `
295 if test $lastdir = $basedir ; then
296 dnl skip alphas when an actual release is present
297 continue;
298 fi
299 lastdir=$dir
300 if test -r $dir/libpcap.a ; then
301 libpcap=$dir/libpcap.a
302 d=$dir
303 dnl continue and select the last one that exists
304 fi
305 done
306 if test $libpcap = FAIL ; then
307 AC_MSG_RESULT(not found)
308
309 #
310 # Look for pcap-config.
311 #
312 AC_PATH_TOOL(PCAP_CONFIG, pcap-config)
313 if test -n "$PCAP_CONFIG" ; then
314 #
315 # Found - use it to get the include flags for
316 # libpcap and the flags to link with libpcap.
317 #
318 # Please read section 11.6 "Shell Substitutions"
319 # in the autoconf manual before doing anything
320 # to this that involves quoting. Especially note
321 # the statement "There is just no portable way to use
322 # double-quoted strings inside double-quoted back-quoted
323 # expressions (pfew!)."
324 #
325 cflags=`"$PCAP_CONFIG" --cflags`
326 $2="$cflags $$2"
327 libpcap=`"$PCAP_CONFIG" --libs`
328 else
329 #
330 # Not found; look for pcap.
331 #
332 AC_CHECK_LIB(pcap, main, libpcap="-lpcap")
333 if test $libpcap = FAIL ; then
334 AC_MSG_ERROR(see the INSTALL doc for more info)
335 fi
336 dnl
337 dnl Some versions of Red Hat Linux put "pcap.h" in
338 dnl "/usr/include/pcap"; had the LBL folks done so,
339 dnl that would have been a good idea, but for
340 dnl the Red Hat folks to do so just breaks source
341 dnl compatibility with other systems.
342 dnl
343 dnl We work around this by assuming that, as we didn't
344 dnl find a local libpcap, libpcap is in /usr/lib or
345 dnl /usr/local/lib and that the corresponding header
346 dnl file is under one of those directories; if we don't
347 dnl find it in either of those directories, we check to
348 dnl see if it's in a "pcap" subdirectory of them and,
349 dnl if so, add that subdirectory to the "-I" list.
350 dnl
351 dnl (We now also put pcap.h in /usr/include/pcap, but we
352 dnl leave behind a /usr/include/pcap.h that includes it,
353 dnl so you can still just include <pcap.h>.)
354 dnl
355 AC_MSG_CHECKING(for extraneous pcap header directories)
356 if test \( ! -r /usr/local/include/pcap.h \) -a \
357 \( ! -r /usr/include/pcap.h \); then
358 if test -r /usr/local/include/pcap/pcap.h; then
359 d="/usr/local/include/pcap"
360 elif test -r /usr/include/pcap/pcap.h; then
361 d="/usr/include/pcap"
362 fi
363 fi
364 if test -z "$d" ; then
365 AC_MSG_RESULT(not found)
366 else
367 $2="-I$d $$2"
368 AC_MSG_RESULT(found -- -I$d added)
369 fi
370 fi
371 else
372 $1=$libpcap
373 places=`ls $srcdir/.. | sed -e 's,/$,,' -e "s,^,$srcdir/../," | \
374 egrep '/libpcap-[[0-9]]*.[[0-9]]*(.[[0-9]]*)?([[ab]][[0-9]]*)?$'`
375 if test -r $d/pcap.h; then
376 $2="-I$d $$2"
377 elif test -r $places/pcap.h; then
378 $2="-I$places $$2"
379 else
380 AC_MSG_ERROR(cannot find pcap.h, see INSTALL)
381 fi
382 AC_MSG_RESULT($libpcap)
383 AC_PATH_PROG(PCAP_CONFIG, pcap-config,, $d)
384 if test -n "$PCAP_CONFIG"; then
385 #
386 # The libpcap directory has a pcap-config script.
387 # Use it to get any additioal libraries needed
388 # to link with the libpcap archive library in
389 # that directory.
390 #
391 # Please read section 11.6 "Shell Substitutions"
392 # in the autoconf manual before doing anything
393 # to this that involves quoting. Especially note
394 # the statement "There is just no portable way to use
395 # double-quoted strings inside double-quoted back-quoted
396 # expressions (pfew!)."
397 #
398 additional_libs=`"$PCAP_CONFIG" --additional-libs --static`
399 libpcap="$libpcap $additional_libs"
400 fi
401 fi
402 LIBS="$libpcap $LIBS"
403 if ! test -n "$PCAP_CONFIG" ; then
404 #
405 # We don't have pcap-config; find out any additional link flags
406 # we need. (If we have pcap-config, we assume it tells us what
407 # we need.)
408 #
409 case "$host_os" in
410
411 aix*)
412 #
413 # If libpcap is DLPI-based, we have to use /lib/pse.exp if
414 # present, as we use the STREAMS routines.
415 #
416 # (XXX - true only if we're linking with a static libpcap?)
417 #
418 pseexe="/lib/pse.exp"
419 AC_MSG_CHECKING(for $pseexe)
420 if test -f $pseexe ; then
421 AC_MSG_RESULT(yes)
422 LIBS="$LIBS -I:$pseexe"
423 fi
424
425 #
426 # If libpcap is BPF-based, we need "-lodm" and "-lcfg", as
427 # we use them to load the BPF module.
428 #
429 # (XXX - true only if we're linking with a static libpcap?)
430 #
431 LIBS="$LIBS -lodm -lcfg"
432 ;;
433 esac
434 fi
435
436 dnl
437 dnl Check for "pcap_loop()", to make sure we found a working
438 dnl libpcap and have all the right other libraries with which
439 dnl to link. (Otherwise, the checks below will fail, not
440 dnl because the routines are missing from the library, but
441 dnl because we aren't linking properly with libpcap, and
442 dnl that will cause confusing errors at build time.)
443 dnl
444 AC_CHECK_FUNC(pcap_loop,,
445 [
446 AC_MSG_ERROR(
447 [Report this to tcpdump-workers@lists.tcpdump.org, and include the
448 config.log file in your report. If you have downloaded libpcap from
449 tcpdump.org, and built it yourself, please also include the config.log
450 file from the libpcap source directory, the Makefile from the libpcap
451 source directory, and the output of the make process for libpcap, as
452 this could be a problem with the libpcap that was built, and we will
453 not be able to determine why this is happening, and thus will not be
454 able to fix it, without that information, as we have not been able to
455 reproduce this problem ourselves.])
456 ])
457
458 dnl
459 dnl Check for "pcap_list_datalinks()", "pcap_set_datalink()",
460 dnl and "pcap_datalink_name_to_val()", and use substitute versions
461 dnl if they're not present.
462 dnl
463 AC_CHECK_FUNC(pcap_list_datalinks,
464 AC_DEFINE(HAVE_PCAP_LIST_DATALINKS),
465 [
466 AC_LIBOBJ(datalinks)
467 ])
468 AC_CHECK_FUNC(pcap_set_datalink,
469 AC_DEFINE(HAVE_PCAP_SET_DATALINK))
470 AC_CHECK_FUNC(pcap_datalink_name_to_val,
471 [
472 AC_DEFINE(HAVE_PCAP_DATALINK_NAME_TO_VAL)
473 AC_CHECK_FUNC(pcap_datalink_val_to_description,
474 AC_DEFINE(HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION),
475 [
476 AC_LIBOBJ(dlnames)
477 ])
478 ],
479 [
480 AC_LIBOBJ(dlnames)
481 ])
482
483 dnl
484 dnl Check for "pcap_breakloop()"; you can't substitute for it if
485 dnl it's absent (it has hooks into the live capture routines),
486 dnl so just define the HAVE_ value if it's there.
487 dnl
488 AC_CHECK_FUNCS(pcap_breakloop)
489
490 dnl
491 dnl Check for "pcap_dump_ftell()" and use a substitute version
492 dnl if it's not present.
493 AC_CHECK_FUNC(pcap_dump_ftell,
494 AC_DEFINE(HAVE_PCAP_DUMP_FTELL),
495 [
496 AC_LIBOBJ(pcap_dump_ftell)
497 ])
498 ])
499
500 dnl
501 dnl Define RETSIGTYPE and RETSIGVAL
502 dnl
503 dnl usage:
504 dnl
505 dnl AC_LBL_TYPE_SIGNAL
506 dnl
507 dnl results:
508 dnl
509 dnl RETSIGTYPE (defined)
510 dnl RETSIGVAL (defined)
511 dnl
512 AC_DEFUN(AC_LBL_TYPE_SIGNAL,
513 [AC_BEFORE([$0], [AC_LBL_LIBPCAP])
514 AC_TYPE_SIGNAL
515 if test "$ac_cv_type_signal" = void ; then
516 AC_DEFINE(RETSIGVAL,[],[return value of signal handlers])
517 else
518 AC_DEFINE(RETSIGVAL,(0),[return value of signal handlers])
519 fi
520 case "$host_os" in
521
522 irix*)
523 AC_DEFINE(_BSD_SIGNALS,1,[get BSD semantics on Irix])
524 ;;
525
526 *)
527 dnl prefer sigaction() to sigset()
528 AC_CHECK_FUNCS(sigaction)
529 if test $ac_cv_func_sigaction = no ; then
530 AC_CHECK_FUNCS(sigset)
531 fi
532 ;;
533 esac])
534
535 dnl
536 dnl If using gcc, make sure we have ANSI ioctl definitions
537 dnl
538 dnl usage:
539 dnl
540 dnl AC_LBL_FIXINCLUDES
541 dnl
542 AC_DEFUN(AC_LBL_FIXINCLUDES,
543 [if test "$GCC" = yes ; then
544 AC_MSG_CHECKING(for ANSI ioctl definitions)
545 AC_CACHE_VAL(ac_cv_lbl_gcc_fixincludes,
546 AC_TRY_COMPILE(
547 [/*
548 * This generates a "duplicate case value" when fixincludes
549 * has not be run.
550 */
551 # include <sys/types.h>
552 # include <sys/time.h>
553 # include <sys/ioctl.h>
554 # ifdef HAVE_SYS_IOCCOM_H
555 # include <sys/ioccom.h>
556 # endif],
557 [switch (0) {
558 case _IO('A', 1):;
559 case _IO('B', 1):;
560 }],
561 ac_cv_lbl_gcc_fixincludes=yes,
562 ac_cv_lbl_gcc_fixincludes=no))
563 AC_MSG_RESULT($ac_cv_lbl_gcc_fixincludes)
564 if test $ac_cv_lbl_gcc_fixincludes = no ; then
565 # Don't cache failure
566 unset ac_cv_lbl_gcc_fixincludes
567 AC_MSG_ERROR(see the INSTALL for more info)
568 fi
569 fi])
570
571 dnl
572 dnl Checks to see if union wait is used with WEXITSTATUS()
573 dnl
574 dnl usage:
575 dnl
576 dnl AC_LBL_UNION_WAIT
577 dnl
578 dnl results:
579 dnl
580 dnl DECLWAITSTATUS (defined)
581 dnl
582 AC_DEFUN(AC_LBL_UNION_WAIT,
583 [AC_MSG_CHECKING(if union wait is used)
584 AC_CACHE_VAL(ac_cv_lbl_union_wait,
585 AC_TRY_COMPILE([
586 # include <sys/types.h>
587 # include <sys/wait.h>],
588 [int status;
589 u_int i = WEXITSTATUS(status);
590 u_int j = waitpid(0, &status, 0);],
591 ac_cv_lbl_union_wait=no,
592 ac_cv_lbl_union_wait=yes))
593 AC_MSG_RESULT($ac_cv_lbl_union_wait)
594 if test $ac_cv_lbl_union_wait = yes ; then
595 AC_DEFINE(DECLWAITSTATUS,union wait,[type for wait])
596 else
597 AC_DEFINE(DECLWAITSTATUS,int,[type for wait])
598 fi])
599
600 dnl
601 dnl Checks to see if the sockaddr struct has the 4.4 BSD sa_len member
602 dnl
603 dnl usage:
604 dnl
605 dnl AC_LBL_SOCKADDR_SA_LEN
606 dnl
607 dnl results:
608 dnl
609 dnl HAVE_SOCKADDR_SA_LEN (defined)
610 dnl
611 AC_DEFUN(AC_LBL_SOCKADDR_SA_LEN,
612 [AC_MSG_CHECKING(if sockaddr struct has the sa_len member)
613 AC_CACHE_VAL(ac_cv_lbl_sockaddr_has_sa_len,
614 AC_TRY_COMPILE([
615 # include <sys/types.h>
616 # include <sys/socket.h>],
617 [u_int i = sizeof(((struct sockaddr *)0)->sa_len)],
618 ac_cv_lbl_sockaddr_has_sa_len=yes,
619 ac_cv_lbl_sockaddr_has_sa_len=no))
620 AC_MSG_RESULT($ac_cv_lbl_sockaddr_has_sa_len)
621 if test $ac_cv_lbl_sockaddr_has_sa_len = yes ; then
622 AC_DEFINE(HAVE_SOCKADDR_SA_LEN,1,[if struct sockaddr has the sa_len member])
623 fi])
624
625 dnl
626 dnl Checks to see if -R is used
627 dnl
628 dnl usage:
629 dnl
630 dnl AC_LBL_HAVE_RUN_PATH
631 dnl
632 dnl results:
633 dnl
634 dnl ac_cv_lbl_have_run_path (yes or no)
635 dnl
636 AC_DEFUN(AC_LBL_HAVE_RUN_PATH,
637 [AC_MSG_CHECKING(for ${CC-cc} -R)
638 AC_CACHE_VAL(ac_cv_lbl_have_run_path,
639 [echo 'main(){}' > conftest.c
640 ${CC-cc} -o conftest conftest.c -R/a1/b2/c3 >conftest.out 2>&1
641 if test ! -s conftest.out ; then
642 ac_cv_lbl_have_run_path=yes
643 else
644 ac_cv_lbl_have_run_path=no
645 fi
646 rm -f -r conftest*])
647 AC_MSG_RESULT($ac_cv_lbl_have_run_path)
648 ])
649
650 dnl
651 dnl Check whether a given format can be used to print 64-bit integers
652 dnl
653 AC_DEFUN(AC_LBL_CHECK_64BIT_FORMAT,
654 [
655 AC_MSG_CHECKING([whether %$1x can be used to format 64-bit integers])
656 AC_RUN_IFELSE(
657 [
658 AC_LANG_SOURCE(
659 [[
660 # ifdef HAVE_INTTYPES_H
661 #include <inttypes.h>
662 # endif
663 # ifdef HAVE_SYS_BITYPES_H
664 #include <sys/bitypes.h>
665 # endif
666 #include <stdio.h>
667 #include <sys/types.h>
668
669 main()
670 {
671 u_int64_t t = 1;
672 char strbuf[16+1];
673 sprintf(strbuf, "%016$1x", t << 32);
674 if (strcmp(strbuf, "0000000100000000") == 0)
675 exit(0);
676 else
677 exit(1);
678 }
679 ]])
680 ],
681 [
682 AC_DEFINE(PRId64, "$1d")
683 AC_DEFINE(PRIo64, "$1o")
684 AC_DEFINE(PRIx64, "$1x")
685 AC_DEFINE(PRIu64, "$1u")
686 AC_MSG_RESULT(yes)
687 ],
688 [
689 AC_MSG_RESULT(no)
690 $2
691 ])
692 ])
693
694 dnl
695 dnl Checks to see if unaligned memory accesses fail
696 dnl
697 dnl usage:
698 dnl
699 dnl AC_LBL_UNALIGNED_ACCESS
700 dnl
701 dnl results:
702 dnl
703 dnl LBL_ALIGN (DEFINED)
704 dnl
705 AC_DEFUN(AC_LBL_UNALIGNED_ACCESS,
706 [AC_MSG_CHECKING(if unaligned accesses fail)
707 AC_CACHE_VAL(ac_cv_lbl_unaligned_fail,
708 [case "$host_cpu" in
709
710 #
711 # These are CPU types where:
712 #
713 # the CPU faults on an unaligned access, but at least some
714 # OSes that support that CPU catch the fault and simulate
715 # the unaligned access (e.g., Alpha/{Digital,Tru64} UNIX) -
716 # the simulation is slow, so we don't want to use it;
717 #
718 # the CPU, I infer (from the old
719 #
720 # XXX: should also check that they don't do weird things (like on arm)
721 #
722 # comment) doesn't fault on unaligned accesses, but doesn't
723 # do a normal unaligned fetch, either (e.g., presumably, ARM);
724 #
725 # for whatever reason, the test program doesn't work
726 # (this has been claimed to be the case for several of those
727 # CPUs - I don't know what the problem is; the problem
728 # was reported as "the test program dumps core" for SuperH,
729 # but that's what the test program is *supposed* to do -
730 # it dumps core before it writes anything, so the test
731 # for an empty output file should find an empty output
732 # file and conclude that unaligned accesses don't work).
733 #
734 # This run-time test won't work if you're cross-compiling, so
735 # in order to support cross-compiling for a particular CPU,
736 # we have to wire in the list of CPU types anyway, as far as
737 # I know, so perhaps we should just have a set of CPUs on
738 # which we know it doesn't work, a set of CPUs on which we
739 # know it does work, and have the script just fail on other
740 # cpu types and update it when such a failure occurs.
741 #
742 alpha*|arm*|bfin*|hp*|mips*|sh*|sparc*|ia64|nv1)
743 ac_cv_lbl_unaligned_fail=yes
744 ;;
745
746 *)
747 cat >conftest.c <<EOF
748 # include <sys/types.h>
749 # include <sys/wait.h>
750 # include <stdio.h>
751 unsigned char a[[5]] = { 1, 2, 3, 4, 5 };
752 main() {
753 unsigned int i;
754 pid_t pid;
755 int status;
756 /* avoid "core dumped" message */
757 pid = fork();
758 if (pid < 0)
759 exit(2);
760 if (pid > 0) {
761 /* parent */
762 pid = waitpid(pid, &status, 0);
763 if (pid < 0)
764 exit(3);
765 exit(!WIFEXITED(status));
766 }
767 /* child */
768 i = *(unsigned int *)&a[[1]];
769 printf("%d\n", i);
770 exit(0);
771 }
772 EOF
773 ${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS \
774 conftest.c $LIBS >/dev/null 2>&1
775 if test ! -x conftest ; then
776 dnl failed to compile for some reason
777 ac_cv_lbl_unaligned_fail=yes
778 else
779 ./conftest >conftest.out
780 if test ! -s conftest.out ; then
781 ac_cv_lbl_unaligned_fail=yes
782 else
783 ac_cv_lbl_unaligned_fail=no
784 fi
785 fi
786 rm -f -r conftest* core core.conftest
787 ;;
788 esac])
789 AC_MSG_RESULT($ac_cv_lbl_unaligned_fail)
790 if test $ac_cv_lbl_unaligned_fail = yes ; then
791 AC_DEFINE(LBL_ALIGN,1,[if unaligned access fails])
792 fi])
793
794 dnl
795 dnl If using gcc and the file .devel exists:
796 dnl Compile with -g (if supported) and -Wall
797 dnl If using gcc 2 or later, do extra prototype checking and some other
798 dnl checks
799 dnl If an os prototype include exists, symlink os-proto.h to it
800 dnl
801 dnl usage:
802 dnl
803 dnl AC_LBL_DEVEL(copt)
804 dnl
805 dnl results:
806 dnl
807 dnl $1 (copt appended)
808 dnl HAVE_OS_PROTO_H (defined)
809 dnl os-proto.h (symlinked)
810 dnl
811 AC_DEFUN(AC_LBL_DEVEL,
812 [rm -f os-proto.h
813 if test "${LBL_CFLAGS+set}" = set; then
814 $1="$$1 ${LBL_CFLAGS}"
815 fi
816 if test -f .devel ; then
817 if test "$GCC" = yes ; then
818 if test "${LBL_CFLAGS+set}" != set; then
819 if test "$ac_cv_prog_cc_g" = yes ; then
820 $1="-g $$1"
821 fi
822 $1="$$1 -Wall"
823 if test $ac_cv_lbl_gcc_vers -gt 1 ; then
824 $1="$$1 -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wpointer-arith -W"
825 fi
826 fi
827 else
828 case "$host_os" in
829
830 irix6*)
831 V_CCOPT="$V_CCOPT -n32"
832 ;;
833
834 *)
835 ;;
836 esac
837 fi
838 os=`echo $host_os | sed -e 's/\([[0-9]][[0-9]]*\)[[^0-9]].*$/\1/'`
839 name="lbl/os-$os.h"
840 if test -f $name ; then
841 ln -s $name os-proto.h
842 AC_DEFINE(HAVE_OS_PROTO_H, 1,
843 [if there's an os_proto.h for this platform, to use additional prototypes])
844 else
845 AC_MSG_WARN(can't find $name)
846 fi
847 fi])
848
849 dnl
850 dnl Improved version of AC_CHECK_LIB
851 dnl
852 dnl Thanks to John Hawkinson (jhawk@mit.edu)
853 dnl
854 dnl usage:
855 dnl
856 dnl AC_LBL_CHECK_LIB(LIBRARY, FUNCTION [, ACTION-IF-FOUND [,
857 dnl ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]])
858 dnl
859 dnl results:
860 dnl
861 dnl LIBS
862 dnl
863 dnl XXX - "AC_LBL_LIBRARY_NET" was redone to use "AC_SEARCH_LIBS"
864 dnl rather than "AC_LBL_CHECK_LIB", so this isn't used any more.
865 dnl We keep it around for reference purposes in case it's ever
866 dnl useful in the future.
867 dnl
868
869 define(AC_LBL_CHECK_LIB,
870 [AC_MSG_CHECKING([for $2 in -l$1])
871 dnl Use a cache variable name containing the library, function
872 dnl name, and extra libraries to link with, because the test really is
873 dnl for library $1 defining function $2, when linked with potinal
874 dnl library $5, not just for library $1. Separate tests with the same
875 dnl $1 and different $2's or $5's may have different results.
876 ac_lib_var=`echo $1['_']$2['_']$5 | sed 'y%./+- %__p__%'`
877 AC_CACHE_VAL(ac_cv_lbl_lib_$ac_lib_var,
878 [ac_save_LIBS="$LIBS"
879 LIBS="-l$1 $5 $LIBS"
880 AC_TRY_LINK(dnl
881 ifelse([$2], [main], , dnl Avoid conflicting decl of main.
882 [/* Override any gcc2 internal prototype to avoid an error. */
883 ]ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus
884 extern "C"
885 #endif
886 ])dnl
887 [/* We use char because int might match the return type of a gcc2
888 builtin and then its argument prototype would still apply. */
889 char $2();
890 ]),
891 [$2()],
892 eval "ac_cv_lbl_lib_$ac_lib_var=yes",
893 eval "ac_cv_lbl_lib_$ac_lib_var=no")
894 LIBS="$ac_save_LIBS"
895 ])dnl
896 if eval "test \"`echo '$ac_cv_lbl_lib_'$ac_lib_var`\" = yes"; then
897 AC_MSG_RESULT(yes)
898 ifelse([$3], ,
899 [changequote(, )dnl
900 ac_tr_lib=HAVE_LIB`echo $1 | sed -e 's/[^a-zA-Z0-9_]/_/g' \
901 -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
902 changequote([, ])dnl
903 AC_DEFINE_UNQUOTED($ac_tr_lib)
904 LIBS="-l$1 $LIBS"
905 ], [$3])
906 else
907 AC_MSG_RESULT(no)
908 ifelse([$4], , , [$4
909 ])dnl
910 fi
911 ])
912
913 dnl
914 dnl AC_LBL_LIBRARY_NET
915 dnl
916 dnl This test is for network applications that need socket() and
917 dnl gethostbyname() -ish functions. Under Solaris, those applications
918 dnl need to link with "-lsocket -lnsl". Under IRIX, they need to link
919 dnl with "-lnsl" but should *not* link with "-lsocket" because
920 dnl libsocket.a breaks a number of things (for instance:
921 dnl gethostbyname() under IRIX 5.2, and snoop sockets under most
922 dnl versions of IRIX).
923 dnl
924 dnl Unfortunately, many application developers are not aware of this,
925 dnl and mistakenly write tests that cause -lsocket to be used under
926 dnl IRIX. It is also easy to write tests that cause -lnsl to be used
927 dnl under operating systems where neither are necessary (or useful),
928 dnl such as SunOS 4.1.4, which uses -lnsl for TLI.
929 dnl
930 dnl This test exists so that every application developer does not test
931 dnl this in a different, and subtly broken fashion.
932
933 dnl It has been argued that this test should be broken up into two
934 dnl seperate tests, one for the resolver libraries, and one for the
935 dnl libraries necessary for using Sockets API. Unfortunately, the two
936 dnl are carefully intertwined and allowing the autoconf user to use
937 dnl them independantly potentially results in unfortunate ordering
938 dnl dependancies -- as such, such component macros would have to
939 dnl carefully use indirection and be aware if the other components were
940 dnl executed. Since other autoconf macros do not go to this trouble,
941 dnl and almost no applications use sockets without the resolver, this
942 dnl complexity has not been implemented.
943 dnl
944 dnl The check for libresolv is in case you are attempting to link
945 dnl statically and happen to have a libresolv.a lying around (and no
946 dnl libnsl.a).
947 dnl
948 AC_DEFUN(AC_LBL_LIBRARY_NET, [
949 # Most operating systems have gethostbyname() in the default searched
950 # libraries (i.e. libc):
951 # Some OSes (eg. Solaris) place it in libnsl
952 # Some strange OSes (SINIX) have it in libsocket:
953 AC_SEARCH_LIBS(gethostbyname, nsl socket resolv)
954 # Unfortunately libsocket sometimes depends on libnsl and
955 # AC_SEARCH_LIBS isn't up to the task of handling dependencies like this.
956 if test "$ac_cv_search_gethostbyname" = "no"
957 then
958 AC_CHECK_LIB(socket, gethostbyname,
959 LIBS="-lsocket -lnsl $LIBS", , -lnsl)
960 fi
961 AC_SEARCH_LIBS(socket, socket, ,
962 AC_CHECK_LIB(socket, socket, LIBS="-lsocket -lnsl $LIBS", , -lnsl))
963 # DLPI needs putmsg under HPUX so test for -lstr while we're at it
964 AC_SEARCH_LIBS(putmsg, str)
965 ])
966
967 dnl Copyright (c) 1999 WIDE Project. All rights reserved.
968 dnl
969 dnl Redistribution and use in source and binary forms, with or without
970 dnl modification, are permitted provided that the following conditions
971 dnl are met:
972 dnl 1. Redistributions of source code must retain the above copyright
973 dnl notice, this list of conditions and the following disclaimer.
974 dnl 2. Redistributions in binary form must reproduce the above copyright
975 dnl notice, this list of conditions and the following disclaimer in the
976 dnl documentation and/or other materials provided with the distribution.
977 dnl 3. Neither the name of the project nor the names of its contributors
978 dnl may be used to endorse or promote products derived from this software
979 dnl without specific prior written permission.
980 dnl
981 dnl THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
982 dnl ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
983 dnl IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
984 dnl ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
985 dnl FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
986 dnl DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
987 dnl OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
988 dnl HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
989 dnl LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
990 dnl OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
991 dnl SUCH DAMAGE.
992
993 dnl
994 dnl Checks to see if AF_INET6 is defined
995 AC_DEFUN(AC_CHECK_AF_INET6, [
996 AC_MSG_CHECKING(for AF_INET6)
997 AC_CACHE_VAL($1,
998 AC_TRY_COMPILE([
999 # include <sys/types.h>
1000 # include <sys/socket.h>],
1001 [int a = AF_INET6],
1002 $1=yes,
1003 $1=no))
1004 AC_MSG_RESULT($$1)
1005 if test $$1 = yes ; then
1006 AC_DEFINE(HAVE_AF_INET6)
1007 fi
1008 ])
1009
1010 dnl
1011 dnl Checks to see if the sockaddr struct has the 4.4 BSD sa_len member
1012 dnl borrowed from LBL libpcap
1013 AC_DEFUN(AC_CHECK_SA_LEN, [
1014 AC_MSG_CHECKING(if sockaddr struct has sa_len member)
1015 AC_CACHE_VAL($1,
1016 AC_TRY_COMPILE([
1017 # include <sys/types.h>
1018 # include <sys/socket.h>],
1019 [u_int i = sizeof(((struct sockaddr *)0)->sa_len)],
1020 $1=yes,
1021 $1=no))
1022 AC_MSG_RESULT($$1)
1023 if test $$1 = yes ; then
1024 AC_DEFINE(HAVE_SOCKADDR_SA_LEN)
1025 fi
1026 ])
1027
1028 dnl
1029 dnl Checks for addrinfo structure
1030 AC_DEFUN(AC_STRUCT_ADDRINFO, [
1031 AC_MSG_CHECKING(for addrinfo)
1032 AC_CACHE_VAL($1,
1033 AC_TRY_COMPILE([
1034 # include <netdb.h>],
1035 [struct addrinfo a],
1036 $1=yes,
1037 $1=no))
1038 AC_MSG_RESULT($$1)
1039 if test $$1 = yes; then
1040 AC_DEFINE(HAVE_ADDRINFO)
1041 else
1042 AC_DEFINE(NEED_ADDRINFO_H)
1043 fi
1044 ])
1045
1046 dnl
1047 dnl Checks for NI_MAXSERV
1048 AC_DEFUN(AC_NI_MAXSERV, [
1049 AC_MSG_CHECKING(for NI_MAXSERV)
1050 AC_CACHE_VAL($1,
1051 AC_EGREP_CPP(yes, [#include <netdb.h>
1052 #ifdef NI_MAXSERV
1053 yes
1054 #endif],
1055 $1=yes,
1056 $1=no))
1057 AC_MSG_RESULT($$1)
1058 if test $$1 != yes; then
1059 AC_DEFINE(NEED_ADDRINFO_H)
1060 fi
1061 ])
1062
1063 dnl
1064 dnl Checks for NI_NAMEREQD
1065 AC_DEFUN(AC_NI_NAMEREQD, [
1066 AC_MSG_CHECKING(for NI_NAMEREQD)
1067 AC_CACHE_VAL($1,
1068 AC_EGREP_CPP(yes, [#include <netdb.h>
1069 #ifdef NI_NOFQDN
1070 yes
1071 #endif],
1072 $1=yes,
1073 $1=no))
1074 AC_MSG_RESULT($$1)
1075 if test $$1 != yes; then
1076 AC_DEFINE(NEED_ADDRINFO_H)
1077 fi
1078 ])
1079
1080 dnl
1081 dnl Checks for sockaddr_storage structure
1082 AC_DEFUN(AC_STRUCT_SA_STORAGE, [
1083 AC_MSG_CHECKING(for sockaddr_storage)
1084 AC_CACHE_VAL($1,
1085 AC_TRY_COMPILE([
1086 # include <sys/types.h>
1087 # include <sys/socket.h>],
1088 [struct sockaddr_storage s],
1089 $1=yes,
1090 $1=no))
1091 AC_MSG_RESULT($$1)
1092 if test $$1 = yes; then
1093 AC_DEFINE(HAVE_SOCKADDR_STORAGE)
1094 fi
1095 ])
1096
1097 dnl
1098 dnl check for h_errno
1099 AC_DEFUN(AC_VAR_H_ERRNO, [
1100 AC_MSG_CHECKING(for h_errno)
1101 AC_CACHE_VAL(ac_cv_var_h_errno,
1102 AC_TRY_COMPILE([
1103 # include <sys/types.h>
1104 # include <netdb.h>],
1105 [int foo = h_errno;],
1106 ac_cv_var_h_errno=yes,
1107 ac_cv_var_h_errno=no))
1108 AC_MSG_RESULT($ac_cv_var_h_errno)
1109 if test "$ac_cv_var_h_errno" = "yes"; then
1110 AC_DEFINE(HAVE_H_ERRNO)
1111 fi
1112 ])
1113
1114 dnl
1115 dnl Test for __attribute__
1116 dnl
1117
1118 AC_DEFUN(AC_C___ATTRIBUTE__, [
1119 AC_MSG_CHECKING(for __attribute__)
1120 AC_CACHE_VAL(ac_cv___attribute__, [
1121 AC_COMPILE_IFELSE([
1122 AC_LANG_SOURCE([[
1123 #include <stdlib.h>
1124
1125 static void foo(void) __attribute__ ((noreturn));
1126
1127 static void
1128 foo(void)
1129 {
1130 exit(1);
1131 }
1132
1133 int
1134 main(int argc, char **argv)
1135 {
1136 foo();
1137 }
1138 ]])],
1139 ac_cv___attribute__=yes,
1140 ac_cv___attribute__=no)])
1141 if test "$ac_cv___attribute__" = "yes"; then
1142 AC_DEFINE(HAVE___ATTRIBUTE__, 1, [define if your compiler has __attribute__])
1143 V_DEFS="$V_DEFS -D_U_=\"__attribute__((unused))\""
1144 else
1145 V_DEFS="$V_DEFS -D_U_=\"\""
1146 fi
1147 AC_MSG_RESULT($ac_cv___attribute__)
1148 ])
1149
1150
1151 dnl
1152 dnl Test whether __attribute__((format)) can be applied to function
1153 dnl pointers
1154 dnl
1155
1156 AC_DEFUN(AC_C___ATTRIBUTE___FORMAT_FUNCTION_POINTER, [
1157 AC_MSG_CHECKING([whether __attribute__((format)) can be applied to function pointers])
1158 AC_CACHE_VAL(ac_cv___attribute___format_function_pointer, [
1159 AC_COMPILE_IFELSE([
1160 AC_LANG_SOURCE([[
1161 #include <stdlib.h>
1162
1163 extern int (*foo)(const char *fmt, ...)
1164 __attribute__ ((format (printf, 1, 2)));
1165
1166 int
1167 main(int argc, char **argv)
1168 {
1169 (*foo)("%s", "test");
1170 }
1171 ]])],
1172 ac_cv___attribute___format_function_pointer=yes,
1173 ac_cv___attribute___format_function_pointer=no)])
1174 if test "$ac_cv___attribute___format_function_pointer" = "yes"; then
1175 AC_DEFINE(__ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS, 1,
1176 [define if your compiler allows __attribute__((format)) to be applied to function pointers])
1177 fi
1178 AC_MSG_RESULT($ac_cv___attribute___format_function_pointer)
1179 ])
1180
1181 AC_DEFUN(AC_LBL_SSLEAY,
1182 [
1183 #
1184 # Find the last component of $libdir; it's not necessarily
1185 # "lib" - it might be "lib64" on, for example, x86-64
1186 # Linux systems.
1187 #
1188 # We assume the directory in which we're looking for
1189 # libcrypto has a subdirectory with that as its name.
1190 #
1191 tmplib=`echo "$libdir" | sed 's,.*/,,'`
1192
1193 #
1194 # XXX - is there a better way to check if a given library is
1195 # in a given directory than checking each of the possible
1196 # shared library suffixes?
1197 #
1198 # Are there any other suffixes we need to look for? Do we
1199 # have to worry about ".so.{version}"?
1200 #
1201 # Or should we just look for "libcrypto.*"?
1202 #
1203 if test -d "$1/$tmplib" -a \( -f "$1/$tmplib/libcrypto.a" -o \
1204 -f "$1/$tmplib/libcrypto.so" -o \
1205 -f "$1/$tmplib/libcrypto.sl" -o \
1206 -f "$1/$tmplib/libcrypto.dylib" \); then
1207 ac_cv_ssleay_path="$1"
1208 fi
1209
1210 #
1211 # Make sure we have the headers as well.
1212 #
1213 if test -d "$1/include/openssl" -a -f "$1/include/openssl/des.h"; then
1214 incdir="-I$1/include"
1215 fi
1216 ])
[mirror] the TCPdump network dissector