source: trunk/aclocal.m4 @ 476

Last change on this file since 476 was 476, checked in by katerina, 6 years ago

Fix for ticket #373 (better autoconf macro for va_copy).

File size: 65.2 KB
Line 
1dnl aclocal.m4 generated automatically by aclocal 1.3
2
3dnl Copyright (C) 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
4dnl This Makefile.in is free software; the Free Software Foundation
5dnl gives unlimited permission to copy and/or distribute it,
6dnl with or without modifications, as long as this notice is preserved.
7
8dnl This program is distributed in the hope that it will be useful,
9dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
10dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
11dnl PARTICULAR PURPOSE.
12
13#
14# Check to make sure that the build environment is sane.
15#
16AC_DEFUN([AM_INIT_AUTOMAKE],
17[
18AC_REQUIRE([AC_PROG_INSTALL])
19PACKAGE=[$1]
20AC_SUBST(PACKAGE)
21VERSION=[$2]
22AC_SUBST(VERSION)
23dnl test to see if srcdir already configured
24if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
25  AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
26fi
27ifelse([$3],,
28AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
29AC_DEFINE_UNQUOTED(VERSION, "$VERSION"))
30AC_REQUIRE([AC_PROG_MAKE_SET])])
31
32
33# Define a conditional.
34
35AC_DEFUN([AM_CONDITIONAL],
36[AC_SUBST($1_TRUE)
37AC_SUBST($1_FALSE)
38if $2; then
39  $1_TRUE=
40  $1_FALSE='#'
41else
42  $1_TRUE='#'
43  $1_FALSE=
44fi])
45
46
47AC_DEFUN([sh_run_prog],
48[if test "$cross_compiling" = "yes"; then
49   AC_MSG_ERROR([Can not probe non-portable values when cross compiling])
50fi
51cat > conftest.$ac_ext <<EOF
52[#]line __oline__ "configure"
53#include "confdefs.h"
54ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus
55extern "C" void exit(int);
56#endif
57])
58[$1]
59EOF
60if AC_TRY_EVAL(ac_link) && test -s conftest && $2=`(./conftest 2>/dev/null)`
61then
62dnl Don't remove the temporary files here, so they can be examined.
63ifelse([$3], , :, [$3])
64else
65echo "configure: failed program was:" >&AC_FD_CC
66cat conftest.$ac_ext >&AC_FD_CC
67ifelse([$4], , , [  rm -fr conftest*
68  $4
69])
70fi
71rm -fr conftest* ])
72
73dnl fs type number of the proc filing system
74AC_DEFUN([sh_procfs_id],
75[AC_MSG_CHECKING([f_type of /proc])
76AC_CACHE_VAL([sh_cv_proc_fstype],
77[sh_run_prog(
78changequote(<<, >>)dnl
79<<#include <stdio.h>
80#ifdef HAVE_STDLIB_H
81#include <stdlib.h>
82#endif /* HAVE_STDLIB_H */
83#ifdef HAVE_UNISTD_H
84#include <unistd.h>
85#endif /* HAVE_UNISTD_H */
86#ifdef HAVE_SYS_VFS_H
87#include <sys/vfs.h>
88#endif
89#ifndef Q
90#define __Q(x) #x
91#define Q(x) __Q(x)
92#endif
93int main(void)
94{
95struct statfs fsbuf;
96long ft;
97if (statfs("/", &fsbuf)!=0)
98  exit(1);
99ft=fsbuf.f_type;
100if (statfs("/proc/1", &fsbuf)!=0)
101  exit(1);
102if (ft!=fsbuf.f_type)
103  printf("0x%08lx", fsbuf.f_type);
104else
105  puts("statfs useless");
106exit(0);
107} >>
108changequote([, ]), sh_cv_proc_fstype,, sh_cv_proc_fstype="a fatal error occured")])
109AC_MSG_RESULT($sh_cv_proc_fstype)
110if test "${sh_cv_proc_fstype}" = "a fatal error occured"; then
111  $1=$2
112  $4
113else if test "${sh_cv_proc_fstype}" = "statfs useless"; then
114  $1=$2
115  $4
116else
117  $1=$sh_cv_proc_fstype
118  $3
119fi; fi ])
120
121# Check whether mlock is broken (hpux 10.20 raises a SIGBUS if mlock
122# is not called from uid 0 (not tested whether uid 0 works)
123dnl AC_CHECK_MLOCK
124dnl
125define([AC_CHECK_MLOCK],
126  [ AC_CHECK_FUNCS(mlock)
127    if test "$ac_cv_func_mlock" = "yes"; then
128        AC_MSG_CHECKING(whether mlock is broken)
129          AC_CACHE_VAL(ac_cv_have_broken_mlock,
130             AC_TRY_RUN([
131                #include <stdlib.h>
132                #include <unistd.h>
133                #include <errno.h>
134                #include <sys/mman.h>
135                #include <sys/types.h>
136                #include <fcntl.h>
137
138                int main()
139                {
140                    char *pool;
141                    int err;
142                    long int pgsize = getpagesize();
143
144                    pool = malloc( 4096 + pgsize );
145                    if( !pool )
146                        return 2;
147                    pool += (pgsize - ((long int)pool % pgsize));
148
149                    err = mlock( pool, 4096 );
150                    if( !err || errno == EPERM )
151                        return 0; /* okay */
152
153                    return 1;  /* hmmm */
154                }
155
156            ],
157            ac_cv_have_broken_mlock="no",
158            ac_cv_have_broken_mlock="yes",
159            ac_cv_have_broken_mlock="assume-no"
160           )
161         )
162         if test "$ac_cv_have_broken_mlock" = "yes"; then
163             AC_DEFINE(HAVE_BROKEN_MLOCK)
164             AC_MSG_RESULT(yes)
165         else
166            if test "$ac_cv_have_broken_mlock" = "no"; then
167                AC_MSG_RESULT(no)
168            else
169                AC_MSG_RESULT(assuming no)
170            fi
171         fi
172    fi
173  ])
174
175dnl @synopsis AC_FUNC_VSNPRINTF
176dnl
177dnl Check whether there is a reasonably sane vsnprintf() function installed.
178dnl "Reasonably sane" in this context means never clobbering memory beyond
179dnl the buffer supplied, and having a sensible return value.  It is
180dnl explicitly allowed not to NUL-terminate the return value, however.
181dnl
182dnl @version $Id: ac_func_vsnprintf.m4,v 1.1 2001/07/26 02:00:21 guidod Exp $
183dnl @author Gaute Strokkenes <gs234@cam.ac.uk>
184dnl
185AC_DEFUN([SL_CHECK_VSNPRINTF],
186[AC_CACHE_CHECK(for working vsnprintf,
187  ac_cv_func_vsnprintf,
188[AC_TRY_RUN(
189[#include <stdio.h>
190#include <stdarg.h>
191
192int
193doit(char * s, ...)
194{
195  char buffer[32];
196  va_list args;
197  int r;
198
199  buffer[5] = 'X';
200
201  va_start(args, s);
202  r = vsnprintf(buffer, 5, s, args);
203  va_end(args);
204
205  /* -1 is pre-C99, 7 is C99. R.W. 17.01.2003 disallow -1 */
206
207  if (r != 7)
208    exit(1);
209
210  /* We deliberately do not care if the result is NUL-terminated or
211     not, since this is easy to work around like this.  */
212
213  buffer[4] = 0;
214
215  /* Simple sanity check.  */
216
217  if (strcmp(buffer, "1234"))
218    exit(1);
219
220  if (buffer[5] != 'X')
221    exit(1);
222
223  exit(0);
224}
225
226int
227main(void)
228{
229  doit("1234567");
230  exit(1);
231}], ac_cv_func_vsnprintf=yes, ac_cv_func_vsnprintf=no, ac_cv_func_vsnprintf=no)])
232dnl Note that the default is to be pessimistic in the case
233dnl of cross compilation.
234dnl If you know that the target has a sensible vsnprintf(),
235dnl you can get around this
236dnl by setting ac_func_vsnprintf to yes, as described in the Autoconf manual.
237if test $ac_cv_func_vsnprintf = yes; then
238  :
239else
240  AC_DEFINE(HAVE_BROKEN_VSNPRINTF, 1,
241            [Define if you have a broken version of the `vsnprintf' function.])
242fi
243])# AC_FUNC_VSNPRINTF
244
245dnl SH_CHECK_TYPEDEF(TYPE, HAVE_NAME)
246dnl Check whether a typedef exists and create a #define $2 if it exists
247dnl
248AC_DEFUN([SH_CHECK_TYPEDEF],
249  [ AC_MSG_CHECKING(for $1 typedef)
250    sh_cv_typedef_foo=`echo sh_cv_typedef_$1 | sed -e 's% %_%g'`
251    AC_CACHE_VAL( $sh_cv_typedef_foo,
252    [AC_TRY_COMPILE([
253#include <stdlib.h>
254#include <sys/types.h>
255#ifdef HAVE_STDINT_H
256#include <stdint.h>
257#endif
258#ifdef HAVE_INTTYPES_H
259#include <inttypes.h>
260#endif], [
261    #undef $1
262    int a = sizeof($1);
263    ], sh_cv_typedef=yes, sh_cv_typedef=no )])
264    AC_MSG_RESULT($sh_cv_typedef)
265    if test "$sh_cv_typedef" = yes; then
266        AC_DEFINE($2)
267        sh_$2=yes
268    else
269        sh_$2=no
270    fi
271  ])
272
273
274
275dnl **********************
276dnl *** va_copy checks ***
277dnl **********************
278# va_copy.m4 serial 1 (js-1.6.20070208)
279
280dnl ## From the OpenWrt Project (http://openwrt.org)
281dnl ## Project is GPL v2
282dnl ##
283dnl ##
284dnl ##  Check for C99 va_copy() implementation
285dnl ##  (and provide fallback implementation if neccessary)
286dnl ##
287dnl ##  configure.in:
288dnl ##    AC_CHECK_VA_COPY
289dnl ##  foo.c:
290dnl ##    #include "config.h"
291dnl ##    [...]
292dnl ##    va_copy(d,s)
293dnl ##
294dnl ##  This check is rather complex: first because we really have to
295dnl ##  try various possible implementations in sequence and second, we
296dnl ##  cannot define a macro in config.h with parameters directly.
297dnl ##
298
299dnl #   test program for va_copy() implementation
300changequote(<<,>>)
301m4_define(__va_copy_test, <<[
302#include <stdlib.h>
303#include <stdarg.h>
304#include <string.h>
305#define DO_VA_COPY(d, s) $1
306void test(char *str, ...)
307{
308    va_list ap, ap2;
309    int i;
310    va_start(ap, str);
311    DO_VA_COPY(ap2, ap);
312    for (i = 1; i <= 9; i++) {
313        int k = (int)va_arg(ap, int);
314        if (k != i)
315            abort();
316    }
317    DO_VA_COPY(ap, ap2);
318    for (i = 1; i <= 9; i++) {
319        int k = (int)va_arg(ap, int);
320        if (k != i)
321            abort();
322    }
323    va_end(ap);
324}
325int main(int argc, char *argv[])
326{
327    test("test", 1, 2, 3, 4, 5, 6, 7, 8, 9);
328    exit(0);
329}
330]>>)
331changequote([,])
332
333dnl #   test driver for va_copy() implementation
334m4_define(__va_copy_check, [
335    AH_VERBATIM($1,
336[/* Predefined possible va_copy() implementation (id: $1) */
337#define __VA_COPY_USE_$1(d, s) $2])
338    if test ".$ac_cv_va_copy" = .; then
339        AC_TRY_RUN(__va_copy_test($2), [ac_cv_va_copy="$1"])
340    fi
341])
342
343dnl #   Autoconf check for va_copy() implementation checking
344AC_DEFUN([AC_CHECK_VA_COPY],[
345  dnl #   provide Autoconf display check message
346  AC_MSG_CHECKING(for va_copy() function)
347  dnl #   check for various implementations in priorized sequence   
348  AC_CACHE_VAL(ac_cv_va_copy, [
349    ac_cv_va_copy=""
350    dnl #   1. check for standardized C99 macro
351    __va_copy_check(C99, [va_copy((d), (s))])
352    dnl #   2. check for alternative/deprecated GCC macro
353    __va_copy_check(GCM, [VA_COPY((d), (s))])
354    dnl #   3. check for internal GCC macro (high-level define)
355    __va_copy_check(GCH, [__va_copy((d), (s))])
356    dnl #   4. check for internal GCC macro (built-in function)
357    __va_copy_check(GCB, [__builtin_va_copy((d), (s))])
358    dnl #   5. check for assignment approach (assuming va_list is a struct)
359    __va_copy_check(ASS, [do { (d) = (s); } while (0)])
360    dnl #   6. check for assignment approach (assuming va_list is a pointer)
361    __va_copy_check(ASP, [do { *(d) = *(s); } while (0)])
362    dnl #   7. check for memory copying approach (assuming va_list is a struct)
363    __va_copy_check(CPS, [memcpy((void *)&(d), (void *)&(s)), sizeof((s))])
364    dnl #   8. check for memory copying approach (assuming va_list is a pointer)
365    __va_copy_check(CPP, [memcpy((void *)(d), (void *)(s)), sizeof(*(s))])
366    if test ".$ac_cv_va_copy" = .; then
367        AC_ERROR([no working implementation found])
368    fi
369  ])
370  dnl #   optionally activate the fallback implementation
371  if test ".$ac_cv_va_copy" = ".C99"; then
372      AC_DEFINE(HAVE_VA_COPY, 1, [Define if va_copy() macro exists (and no fallback implementation is required)])
373  fi
374  dnl #   declare which fallback implementation to actually use
375  AC_DEFINE_UNQUOTED([__VA_COPY_USE], [__VA_COPY_USE_$ac_cv_va_copy],
376      [Define to id of used va_copy() implementation])
377  dnl #   provide activation hook for fallback implementation
378  AH_VERBATIM([__VA_COPY_ACTIVATION],
379[/* Optional va_copy() implementation activation */
380#ifndef HAVE_VA_COPY
381#define va_copy(d, s) __VA_COPY_USE(d, s)
382#endif
383])
384  dnl #   provide Autoconf display result message
385  if test ".$ac_cv_va_copy" = ".C99"; then
386      AC_MSG_RESULT([yes])
387  else
388      AC_MSG_RESULT([no (using fallback implementation)])
389  fi
390])
391
392
393dnl SH_INIT_PARSE_ARGS()
394m4_define([SH_INIT_PARSE_ARGS],
395[
396m4_divert_push([PARSE_ARGS])dnl
397
398as_cr_letters='abcdefghijklmnopqrstuvwxyz'
399as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
400as_cr_Letters=$as_cr_letters$as_cr_LETTERS
401as_cr_digits='0123456789'
402as_cr_alnum=$as_cr_Letters$as_cr_digits
403
404# Sed expression to map a string onto a valid CPP name.
405as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[[^_$as_cr_alnum]]%_%g"
406
407as_tr_sh="eval sed 'y%*+%pp%;s%[[^_$as_cr_alnum]]%_%g'"
408# IFS
409# We need space, tab and new line, in precisely that order.
410as_nl='
411'
412IFS="   $as_nl"
413
414# CDPATH.
415$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=$PATH_SEPARATOR; export CDPATH; }
416
417
418# Initialize some variables set by options.
419ac_init_help=
420ac_init_version=false
421# The variables have the same names as the options, with
422# dashes changed to underlines.
423cache_file=/dev/null
424AC_SUBST(exec_prefix, NONE)dnl
425no_create=
426no_recursion=
427AC_SUBST(prefix, NONE)dnl
428program_prefix=NONE
429program_suffix=NONE
430AC_SUBST(program_transform_name, [s,x,x,])dnl
431silent=
432site=
433srcdir=
434verbose=
435x_includes=NONE
436x_libraries=NONE
437DESTDIR=
438SH_ENABLE_OPTS="asm ssp db-reload xml-log message-queue login-watch process-check port-check mounts-check logfile-monitor userfiles debug ptrace static network udp nocl stealth micro-stealth install-name identity khide suidcheck base largefile mail external-scripts encrypt srp dnmalloc ipv6 shellexpand suid"
439SH_WITH_OPTS="prelude libprelude-prefix database libwrap cflags libs console altconsole timeserver alttimeserver rnd egd-socket port logserver altlogserver kcheck gpg keyid checksum fp recipient sender trusted tmp-dir config-file log-file pid-file state-dir data-file html-file"
440
441# Installation directory options.
442# These are left unexpanded so users can "make install exec_prefix=/foo"
443# and all the variables that are supposed to be based on exec_prefix
444# by default will actually change.
445dnl Use braces instead of parens because sh, perl, etc. also accept them.
446sbindir='${exec_prefix}/sbin'
447sysconfdir='${prefix}/etc'
448localstatedir='${prefix}/var'
449mandir='${prefix}/share/man'
450
451AC_SUBST([sbindir],        ['${exec_prefix}/sbin'])dnl
452AC_SUBST([sysconfdir],     ['${prefix}/etc'])dnl
453AC_SUBST([localstatedir],  ['${prefix}/var'])dnl
454AC_SUBST([mandir],         ['${prefix}/share/man'])dnl
455
456
457# Initialize some other variables.
458subdirs=
459MFLAGS= MAKEFLAGS=
460SHELL=${CONFIG_SHELL-/bin/sh}
461# Maximum number of lines to put in a shell here document.
462ac_max_here_lines=12
463
464ac_prev=
465for ac_option
466do
467
468  # If the previous option needs an argument, assign it.
469  if test -n "$ac_prev"; then
470    eval "$ac_prev=\$ac_option"
471    ac_prev=
472    continue
473  fi
474
475  case "$ac_option" in
476changequote(, )dnl
477  *=*) ac_optarg=`echo "$ac_option" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
478changequote([, ])dnl
479  *) ac_optarg= ;;
480  esac
481
482  # Accept the important Cygnus configure options, so we can diagnose typos.
483
484  case "$ac_option" in
485
486  -build | --build | --buil | --bui | --bu)
487    ac_prev=build_alias ;;
488  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
489    build_alias="$ac_optarg" ;;
490
491  -cache-file | --cache-file | --cache-fil | --cache-fi \
492  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
493    ac_prev=cache_file ;;
494  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
495  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
496    cache_file="$ac_optarg" ;;
497
498  --config-cache | -C)
499    cache_file=config.cache ;;
500
501  -disable-* | --disable-*)
502    ac_feature=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
503    # Reject names that are not valid shell variable names.
504    expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
505      AC_MSG_ERROR([invalid feature name: $ac_feature])
506    ac_feature=`echo $ac_feature | sed 's/-/_/g'`
507    ac_enable_check_opt=no
508    for f in ${SH_ENABLE_OPTS}
509    do
510        f=`echo $f | sed 's/-/_/g'`
511        if test x${f} = x"${ac_feature}"
512        then
513                ac_enable_check_opt=yes
514        fi
515    done
516    if test x${ac_enable_check_opt} = xno
517    then
518        AC_MSG_ERROR([unrecognized option: $ac_option
519Try `$[0] --help' for more information.])
520    fi
521    eval "enable_$ac_feature=no" ;;
522
523  -enable-* | --enable-*)
524    ac_feature=`expr "x$ac_option" : 'x-*enable-\([[^=]]*\)'`
525    # Reject names that are not valid shell variable names.
526    expr "x$ac_feature" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
527      AC_MSG_ERROR([invalid feature name: $ac_feature])
528    ac_feature=`echo $ac_feature | sed 's/-/_/g'`
529    case $ac_option in
530      *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
531      *) ac_optarg=yes ;;
532    esac
533    ac_enable_check_opt=no
534    for f in ${SH_ENABLE_OPTS}
535    do
536        f=`echo $f | sed 's/-/_/g'`
537        if test x${f} = x"${ac_feature}"
538        then
539                ac_enable_check_opt=yes
540        fi
541    done
542    if test x${ac_enable_check_opt} = xno
543    then
544        AC_MSG_ERROR([unrecognized option: $ac_option
545Try `$[0] --help' for more information.])
546    fi
547    eval "enable_$ac_feature='$ac_optarg'" ;;
548
549  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
550  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
551  | --exec | --exe | --ex)
552    ac_prev=exec_prefix
553    ac_exec_prefix_set="yes"
554    ;;
555  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
556  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
557  | --exec=* | --exe=* | --ex=*)
558    exec_prefix="$ac_optarg"
559    ac_exec_prefix_set="yes"
560    ;;
561
562  -gas | --gas | --ga | --g)
563    # Obsolete; use --with-gas.
564    with_gas=yes ;;
565
566  -help | --help | --hel | --he | -h)
567    ac_init_help=long ;;
568  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
569    ac_init_help=recursive ;;
570  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
571    ac_init_help=short ;;
572
573  -host | --host | --hos | --ho)
574    ac_prev=host_alias ;;
575  -host=* | --host=* | --hos=* | --ho=*)
576    host_alias="$ac_optarg" ;;
577
578  -localstatedir | --localstatedir | --localstatedi | --localstated \
579  | --localstate | --localstat | --localsta | --localst \
580  | --locals | --local | --loca | --loc | --lo)
581    ac_prev=localstatedir
582    ac_localstatedir_set="yes"
583    ;;
584  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
585  | --localstate=* | --localstat=* | --localsta=* | --localst=* \
586  | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
587    localstatedir="$ac_optarg"
588    ac_localstatedir_set="yes"
589    ;;
590
591  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
592    ac_prev=mandir
593    ac_mandir_set="yes"
594    ;;
595  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
596    mandir="$ac_optarg"
597    ac_mandir_set="yes"
598    ;;
599
600  -nfp | --nfp | --nf)
601    # Obsolete; use --without-fp.
602    with_fp=no ;;
603
604  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
605  | --no-cr | --no-c | -n)
606    no_create=yes ;;
607
608  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
609  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
610    no_recursion=yes ;;
611
612  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
613    ac_prev=prefix
614    ac_prefix_set="yes"
615    ;;
616  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
617    prefix="$ac_optarg"
618    ac_prefix_set="yes"
619    ;;
620
621  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
622  | -silent | --silent | --silen | --sile | --sil)
623    silent=yes ;;
624
625  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
626    ac_prev=sbindir
627    ac_sbindir_set="yes"
628    ;;
629  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
630  | --sbi=* | --sb=*)
631    sbindir="$ac_optarg"
632    ac_sbindir_set="yes"
633    ;;
634
635  -bindir | --bindir | --bindi | --bind | --bin | --bi | --b)
636    echo "WARNING: bindir will be ignored, use sbindir"
637    ;;
638  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* \
639  | --bi=* | --b=*)
640    echo "WARNING: bindir will be ignored, use sbindir"
641    ;;
642
643  -datadir | --datadir)
644    echo "WARNING: datadir will be ignored"
645   ;;
646  -datadir=* | --datadir=*)
647    echo "WARNING: datadir will be ignored"
648   ;;
649 
650  -includedir | --includedir)
651    echo "WARNING: includedir will be ignored"
652   ;;
653  -includedir=* | --includedir=*)
654    echo "WARNING: includedir will be ignored"
655   ;;
656
657  -infodir | --infodir)
658    echo "WARNING: infodir will be ignored"
659   ;;
660  -infodir=* | --infodir=*)
661    echo "WARNING: infodir will be ignored"
662   ;;
663 
664  -libdir | --libdir)
665    echo "WARNING: libdir will be ignored"
666   ;;
667  -libdir=* | --libdir=*)
668    echo "WARNING: libdir will be ignored"
669   ;;
670 
671  -libexecdir | --libexecdir)
672    echo "WARNING: libexecdir will be ignored"
673   ;;
674  -libexecdir=* | --libexecdir=*)
675    echo "WARNING: libexecdir will be ignored"
676   ;;
677
678  -sharedstatedir | --sharedstatedir)
679    echo "WARNING: sharedstatedir will be ignored"
680   ;;
681  -sharedstatedir=* | --sharedstatedir=*)
682    echo "WARNING: sharedstatedir will be ignored"
683   ;;
684 
685  -site | --site | --sit)
686    ac_prev=site ;;
687  -site=* | --site=* | --sit=*)
688    site="$ac_optarg" ;;
689
690  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
691    ac_prev=srcdir ;;
692  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
693    srcdir="$ac_optarg" ;;
694
695  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
696  | --syscon | --sysco | --sysc | --sys | --sy)
697    ac_prev=sysconfdir
698    ac_sysconfdir_set="yes"
699    ;;
700  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
701  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
702    sysconfdir="$ac_optarg"
703    ac_sysconfdir_set="yes"
704    ;;
705
706  -target | --target | --targe | --targ | --tar | --ta | --t)
707    ac_prev=target_alias ;;
708  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
709    target_alias="$ac_optarg" ;;
710
711  -v | -verbose | --verbose | --verbos | --verbo | --verb)
712    verbose=yes ;;
713
714  -version | --version | --versio | --versi | --vers)
715    ac_init_version=: ;;
716
717
718  -with-* | --with-*)
719    ac_package=`expr "x$ac_option" : 'x-*with-\([[^=]]*\)'`
720    # Reject names that are not valid shell variable names.
721    expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
722      AC_MSG_ERROR([invalid package name: $ac_package])
723    ac_package=`echo $ac_package| sed 's/-/_/g'`
724    case $ac_option in
725      *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
726      *) ac_optarg=yes ;;
727    esac
728    ac_with_check_opt=no
729    for f in ${SH_WITH_OPTS}
730    do
731        f=`echo $f | sed 's/-/_/g'`
732        if test x${f} = x"${ac_package}"
733        then
734                ac_with_check_opt=yes
735        fi
736    done
737    if test x${ac_with_check_opt} = xno
738    then
739        AC_MSG_ERROR([unrecognized option: $ac_option
740Try `$[0] --help' for more information.])
741    fi
742    eval "with_$ac_package='$ac_optarg'" ;;
743
744  -without-* | --without-*)
745    ac_package=`expr "x$ac_option" : 'x-*without-\(.*\)'`
746    # Reject names that are not valid shell variable names.
747    expr "x$ac_package" : "[.*[^-_$as_cr_alnum]]" >/dev/null &&
748      AC_MSG_ERROR([invalid package name: $ac_package])
749    ac_package=`echo $ac_package | sed 's/-/_/g'`
750    ac_with_check_opt=no
751    for f in ${SH_WITH_OPTS}
752    do
753        f=`echo $f | sed 's/-/_/g'`
754        if test x${f} = x"${ac_package}"
755        then
756                ac_with_check_opt=yes
757        fi
758    done
759    if test x${ac_with_check_opt} = xno
760    then
761        AC_MSG_ERROR([unrecognized option: $ac_option
762Try `$[0] --help' for more information.])
763    fi
764    eval "with_$ac_package=no" ;;
765
766
767  -*) AC_MSG_ERROR([unrecognized option: $ac_option
768Try `$[0] --help' for more information.])
769    ;;
770
771  *=*)
772    ac_envvar=`expr "x$ac_option" : 'x\([[^=]]*\)='`
773    # Reject names that are not valid shell variable names.
774    expr "x$ac_envvar" : "[.*[^_$as_cr_alnum]]" >/dev/null &&
775      AC_MSG_ERROR([invalid variable name: $ac_envvar])
776    ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`
777    eval "$ac_envvar='$ac_optarg'"
778    export $ac_envvar ;;
779
780  *)
781    # FIXME: should be removed in autoconf 3.0.
782    AC_MSG_WARN([you should use --build, --host, --target])
783    expr "x$ac_option" : "[.*[^-._$as_cr_alnum]]" >/dev/null &&
784      AC_MSG_WARN([invalid host type: $ac_option])
785    : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
786    ;;
787
788
789  esac
790done
791
792if test -n "$ac_prev"; then
793  AC_MSG_ERROR(missing argument to --`echo $ac_prev | sed 's/_/-/g'`)
794fi
795
796# Be sure to have absolute paths.
797for ac_var in prefix exec_prefix
798do
799  eval ac_val=$`echo $ac_var`
800  case $ac_val in
801    [[\\/$]]* | ?:[[\\/]]* | NONE | '' | OPT | USR ) ;;
802    *)  AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val]);;
803  esac
804done
805
806# Be sure to have absolute paths.
807for ac_var in sbindir sysconfdir localstatedir mandir
808do
809  eval ac_val=$`echo $ac_var`
810  case $ac_val in
811    [[\\/$]]* | ?:[[\\/]]* ) ;;
812    *)  AC_MSG_ERROR([expected an absolute directory name for --$ac_var: $ac_val]);;
813  esac
814done
815
816# There might be people who depend on the old broken behavior: `$host'
817# used to hold the argument of --host etc.
818# FIXME: To remove some day.
819build=$build_alias
820host=$host_alias
821target=$target_alias
822
823# FIXME: To remove some day.
824if test "x$host_alias" != x; then
825  if test "x$build_alias" = x; then
826    cross_compiling=maybe
827    AC_MSG_WARN([If you wanted to set the --build type, don't use --host.
828    If a cross compiler is detected then cross compile mode will be used.])
829  elif test "x$build_alias" != "x$host_alias"; then
830    cross_compiling=yes
831  fi
832fi
833
834ac_tool_prefix=
835test -n "$host_alias" && ac_tool_prefix=$host_alias-
836
837test "$silent" = yes && exec AS_MESSAGE_FD>/dev/null
838
839m4_divert_pop([PARSE_ARGS])dnl
840])# SH_INIT_PARSE_ARGS
841
842m4_define([SH_INIT_HELP],
843[m4_divert_push([HELP_BEGIN])dnl
844
845#
846# Report the --help message.
847#
848if test "$ac_init_help" = "long"; then
849  # Omit some internal or obsolete options to make the list less imposing.
850  # This message is too long to be a string in the A/UX 3.1 sh.
851  cat <<_ACEOF
852\`configure' configures m4_ifset([AC_PACKAGE_STRING],
853                        [AC_PACKAGE_STRING],
854                        [this package]) to adapt to many kinds of systems.
855
856Usage: $[0] [[OPTION]]... [[VAR=VALUE]]...
857
858[To assign environment variables (e.g., CC, CFLAGS...), specify them as
859VAR=VALUE.  See below for descriptions of some of the useful variables.
860
861Defaults for the options are specified in brackets.
862
863Configuration:
864  -h, --help              display this help and exit
865      --help=short        display options specific to this package
866      --help=recursive    display the short help of all the included packages
867  -V, --version           display version information and exit
868  -q, --quiet, --silent   do not print \`checking...' messages
869      --cache-file=FILE   cache test results in FILE [disabled]
870  -C, --config-cache      alias for \`--cache-file=config.cache'
871  -n, --no-create         do not create output files
872      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
873
874_ACEOF
875
876  cat <<_ACEOF
877Installation directories:
878  --prefix=PREFIX         install architecture-independent files in PREFIX
879                          [$ac_default_prefix]
880  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
881                          [PREFIX]
882
883By default, \`make install' will install binaries in \`/usr/local/sbin',
884the config file in \`/etc', manpage in \`/usr/local/share/man', and state
885data in \`/var/lib/INSTALL_NAME' (FSH layout).  You can specify other
886FSH compliant layouts with \`--prefix=OPT' or \`--prefix=USR', or you
887can specify a directory with \`--prefix=DIR' to install in \`DIR/sbin',
888\`DIR/etc', etc.
889
890For better control, use the options below.
891
892Fine tuning of the installation directories:
893  --sbindir=DIR          system admin executables [EPREFIX/sbin]
894  --sysconfdir=DIR       read-only single-machine data [PREFIX/etc]
895  --localstatedir=DIR    modifiable single-machine data [PREFIX/var]
896  --mandir=DIR           man documentation [PREFIX/man]
897
898For even finer tuning, paths can be specified for individual files (see below)
899
900_ACEOF
901
902  cat <<\_ACEOF]
903m4_divert_pop([HELP_BEGIN])dnl
904dnl The order of the diversions here is
905dnl - HELP_BEGIN
906dnl   which may be prolongated by extra generic options such as with X or
907dnl   AC_ARG_PROGRAM.  Displayed only in long --help.
908dnl
909dnl - HELP_CANON
910dnl   Support for cross compilation (--build, --host and --target).
911dnl   Display only in long --help.
912dnl
913dnl - HELP_ENABLE
914dnl   which starts with the trailer of the HELP_BEGIN, HELP_CANON section,
915dnl   then implements the header of the non generic options.
916dnl
917dnl - HELP_WITH
918dnl
919dnl - HELP_VAR
920dnl
921dnl - HELP_VAR_END
922dnl
923dnl - HELP_END
924dnl   initialized below, in which we dump the trailer (handling of the
925dnl   recursion for instance).
926m4_divert_push([HELP_ENABLE])dnl
927_ACEOF
928fi
929
930if test -n "$ac_init_help"; then
931m4_ifset([AC_PACKAGE_STRING],
932[  case $ac_init_help in
933     short | recursive ) echo "Configuration of AC_PACKAGE_STRING:";;
934   esac])
935  cat <<\_ACEOF
936m4_divert_pop([HELP_ENABLE])dnl
937m4_divert_push([HELP_END])dnl
938m4_ifset([AC_PACKAGE_BUGREPORT], [
939Report bugs to <AC_PACKAGE_BUGREPORT>.])
940_ACEOF
941fi
942
943if test "$ac_init_help" = "recursive"; then
944  # If there are subdirs, report their specific --help.
945  ac_popdir=`pwd`
946  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
947    test -d $ac_dir || continue
948    _AC_SRCPATHS(["$ac_dir"])
949    cd $ac_dir
950    # Check for guested configure; otherwise get Cygnus style configure.
951    if test -f $ac_srcdir/configure.gnu; then
952      echo
953      $SHELL $ac_srcdir/configure.gnu  --help=recursive
954    elif test -f $ac_srcdir/configure; then
955      echo
956      $SHELL $ac_srcdir/configure  --help=recursive
957    elif test -f $ac_srcdir/configure.ac ||
958           test -f $ac_srcdir/configure.in; then
959      echo
960      $ac_configure --help
961    else
962      AC_MSG_WARN([no configuration information is in $ac_dir])
963    fi
964    cd $ac_popdir
965  done
966fi
967
968test -n "$ac_init_help" && exit 0
969m4_divert_pop([HELP_END])dnl
970])# SH_INIT_HELP
971
972
973
974
975
976
977
978
979# Check whether sa_sigaction works.
980# Rainer Wichmann <support@la-samhna.de>, 2003.
981#
982# This file can be copied and used freely without restrictions.  It can
983# be used in projects which are not available under the GNU Public License.
984
985# serial 1
986
987AC_DEFUN([AM_SA_SIGACTION_WORKS],
988  [
989   am_cv_val_SA_SIGACTION=no
990   AC_CHECK_HEADER(signal.h,
991     [
992      AM_SI_USER
993      AM_SA_SIGINFO
994      if test $am_cv_val_SI_USER = yes && test $am_cv_val_SA_SIGINFO = yes
995      then
996        AC_TRY_RUN([
997#include <signal.h>
998#include <setjmp.h>
999#include <stdio.h>
1000#include <stdlib.h>
1001
1002volatile int xnum  = 0;
1003volatile int xcode = 0;
1004jmp_buf      Buf;
1005int          xsig  = SIGSEGV;
1006
1007void sighandler (int xsignam, siginfo_t * xsiginfo, void * xsigadd)
1008{
1009  static sigset_t x;
1010
1011  if (xsiginfo == NULL)
1012    exit(__LINE__);
1013  if (xsiginfo->si_signo != xsignam)
1014    exit(__LINE__);
1015  ++xnum;
1016  xcode   = xsiginfo->si_code;
1017  sigemptyset (&x);
1018  sigprocmask(SIG_SETMASK, &x, NULL);
1019  longjmp ( Buf, 1);
1020}
1021
1022int main ()
1023{
1024  struct sigaction newact;
1025
1026  newact.sa_sigaction = sighandler;
1027  sigemptyset (&newact.sa_mask);
1028  newact.sa_flags = SA_SIGINFO;
1029  if (0 != sigaction (xsig, &newact, NULL))
1030    exit (__LINE__);
1031  if(setjmp ( Buf)) {
1032      if (xnum > 1)
1033        goto Third;
1034      goto Second;
1035  }
1036  memcpy((void *) 0x0, "test", 5);
1037 Second:
1038  if (xcode == SI_USER)
1039    exit (__LINE__);
1040  raise(xsig);
1041 Third:
1042  if (xcode != SI_USER)
1043    exit (__LINE__);
1044  if (xnum != 2)
1045    exit (__LINE__);
1046  return (0);
1047}], am_cv_val_SA_SIGACTION=yes, am_cv_val_SA_SIGACTION=no, am_cv_val_SA_SIGACTION=no)
1048   fi
1049      ])
1050     AC_MSG_CHECKING([whether sa_sigaction is supported])
1051     if test $am_cv_val_SA_SIGACTION = yes
1052     then
1053       AC_MSG_RESULT(yes)
1054       AC_DEFINE([SA_SIGACTION_WORKS], 1, [Define if sa_sigaction works])
1055     else
1056        AC_MSG_RESULT(no)
1057     fi
1058     ])
1059
1060# Check whether SI_USER is available in <signal.h>.
1061# Rainer Wichmann <support@la-samhna.de>, 2003.
1062#
1063# This file can be copied and used freely without restrictions.  It can
1064# be used in projects which are not available under the GNU Public License.
1065
1066# serial 1
1067
1068
1069AC_DEFUN([AM_SI_USER],
1070  [if test $ac_cv_header_signal_h = yes; then
1071    AC_CACHE_CHECK([for SI_USER in signal.h], am_cv_val_SI_USER,
1072      [AC_TRY_LINK([#include <signal.h>], [return SI_USER],
1073       am_cv_val_SI_USER=yes, am_cv_val_SI_USER=no)])
1074    if test $am_cv_val_SI_USER = yes; then
1075      AC_DEFINE([HAVE_SI_USER], 1, [Define if you have SI_USER])
1076    fi
1077  fi])
1078
1079# Check whether SA_SIGINFO is available in <signal.h>.
1080# Rainer Wichmann <support@la-samhna.de>, 2003.
1081#
1082# This file can be copied and used freely without restrictions.  It can
1083# be used in projects which are not available under the GNU Public License.
1084
1085# serial 1
1086
1087
1088AC_DEFUN([AM_SA_SIGINFO],
1089  [if test $ac_cv_header_signal_h = yes; then
1090    AC_CACHE_CHECK([for SA_SIGINFO in signal.h], am_cv_val_SA_SIGINFO,
1091      [AC_TRY_LINK([#include <signal.h>], [return SA_SIGINFO],
1092       am_cv_val_SA_SIGINFO=yes, am_cv_val_SA_SIGINFO=no)])
1093    if test $am_cv_val_SA_SIGINFO = yes; then
1094      AC_DEFINE([HAVE_SA_SIGINFO], 1, [Define if you have SA_SIGINFO])
1095    fi
1096  fi])
1097
1098dnl
1099dnl Useful macros for autoconf to check for ssp-patched gcc
1100dnl 1.0 - September 2003 - Tiago Sousa <mirage@kaotik.org>
1101dnl 1.1 - August 2006 - Ted Percival <ted@midg3t.net>
1102dnl     * Stricter language checking (C or C++)
1103dnl     * Adds GCC_STACK_PROTECT_LIB to add -lssp to LDFLAGS as necessary
1104dnl     * Caches all results
1105dnl     * Uses macros to ensure correct ouput in quiet/silent mode
1106dnl 1.2 - April 2007 - Ted Percival <ted@midg3t.net>
1107dnl     * Added GCC_STACK_PROTECTOR macro for simpler (one-line) invocation
1108dnl     * GCC_STACK_PROTECT_LIB now adds -lssp to LIBS rather than LDFLAGS
1109dnl
1110dnl About ssp:
1111dnl GCC extension for protecting applications from stack-smashing attacks
1112dnl http://www.research.ibm.com/trl/projects/security/ssp/
1113dnl
1114dnl Usage:
1115dnl Most people will simply call GCC_STACK_PROTECTOR.
1116dnl If you only use one of C or C++, you can save time by only calling the
1117dnl macro appropriate for that language. In that case you should also call
1118dnl GCC_STACK_PROTECT_LIB first.
1119dnl
1120dnl GCC_STACK_PROTECTOR
1121dnl Tries to turn on stack protection for C and C++ by calling the following
1122dnl three macros with the right languages.
1123dnl
1124dnl GCC_STACK_PROTECT_CC
1125dnl checks -fstack-protector with the C compiler, if it exists then updates
1126dnl CFLAGS and defines ENABLE_SSP_CC
1127dnl
1128dnl GCC_STACK_PROTECT_CXX
1129dnl checks -fstack-protector with the C++ compiler, if it exists then updates
1130dnl CXXFLAGS and defines ENABLE_SSP_CXX
1131dnl
1132dnl GCC_STACK_PROTECT_LIB
1133dnl adds -lssp to LIBS if it is available
1134dnl ssp is usually provided as part of libc, but was previously a separate lib
1135dnl It does not hurt to add -lssp even if libc provides SSP - in that case
1136dnl libssp will simply be ignored.
1137dnl
1138
1139AC_DEFUN([GCC_STACK_PROTECT_LIB],[
1140  AC_CACHE_CHECK([whether libssp exists], ssp_cv_lib,
1141    [ssp_old_libs="$LIBS"
1142     LIBS="$LIBS -lssp"
1143     AC_TRY_LINK(,, ssp_cv_lib=yes, ssp_cv_lib=no)
1144     LIBS="$ssp_old_libs"
1145    ])
1146  if test $ssp_cv_lib = yes; then
1147    LIBS="$LIBS -lssp"
1148  fi
1149])
1150
1151AC_DEFUN([GCC_STACK_PROTECT_CC],[
1152  AC_LANG_ASSERT(C)
1153  if test "X$CC" != "X"; then
1154    AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector-all],
1155      ssp_cv_cc,
1156      [ssp_old_cflags="$CFLAGS"
1157       CFLAGS="$CFLAGS -fstack-protector-all"
1158       AC_TRY_COMPILE(,, ssp_cv_cc=yes, ssp_cv_cc=no)
1159       CFLAGS="$ssp_old_cflags"
1160      ])
1161    if test $ssp_cv_cc = no; then
1162      AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector],
1163        ssp_cv_cc,
1164        [ssp_old_cflags="$CFLAGS"
1165         CFLAGS="$CFLAGS -fstack-protector"
1166         AC_TRY_COMPILE(,, ssp_cv_cc=yes, ssp_cv_cc=no)
1167         CFLAGS="$ssp_old_cflags"
1168        ])
1169      if test $ssp_cv_cc = yes; then
1170        CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector"
1171        LDFLAGS="$LDFLAGS -fstack-protector"
1172        AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
1173      fi
1174    else
1175      if test $ssp_cv_cc = yes; then
1176        CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2 -fstack-protector-all"
1177        LDFLAGS="$LDFLAGS -fstack-protector-all"
1178        AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
1179      fi
1180    fi
1181  fi
1182])
1183
1184AC_DEFUN([GCC_STACK_PROTECT_CXX],[
1185  AC_LANG_ASSERT(C++)
1186  if test "X$CXX" != "X"; then
1187    AC_CACHE_CHECK([whether ${CXX} accepts -fstack-protector],
1188      ssp_cv_cxx,
1189      [ssp_old_cxxflags="$CXXFLAGS"
1190       CXXFLAGS="$CXXFLAGS -fstack-protector"
1191       AC_TRY_COMPILE(,, ssp_cv_cxx=yes, ssp_cv_cxx=no)
1192       CXXFLAGS="$ssp_old_cxxflags"
1193      ])
1194    if test $ssp_cv_cxx = yes; then
1195      CXXFLAGS="$CXXFLAGS -fstack-protector"
1196      AC_DEFINE([ENABLE_SSP_CXX], 1, [Define if SSP C++ support is enabled.])
1197    fi
1198  fi
1199])
1200
1201AC_DEFUN([GCC_STACK_PROTECTOR],[
1202  GCC_STACK_PROTECT_LIB
1203
1204  AC_LANG_PUSH([C])
1205  GCC_STACK_PROTECT_CC
1206  AC_LANG_POP([C])
1207
1208  AC_LANG_PUSH([C++])
1209  GCC_STACK_PROTECT_CXX
1210  AC_LANG_POP([C++])
1211])
1212
1213
1214AC_DEFUN([GCC_PIE_CC],[
1215  AC_LANG_ASSERT(C)
1216  if test "X$CC" != "X"; then
1217    AC_CACHE_CHECK([whether ${CC} accepts -pie -fPIE],
1218      pie_cv_cc,
1219      [pie_old_cflags="$CFLAGS"
1220       CFLAGS="$CFLAGS -pie -fPIE"
1221       AC_TRY_COMPILE(,, pie_cv_cc=yes, pie_cv_cc=no)
1222       CFLAGS="$pie_old_cflags"
1223      ])
1224    if test $pie_cv_cc = yes; then
1225      case "$host_os" in
1226      *cygwin*)
1227      ;;
1228      *)
1229      PIE_CFLAGS="-fPIE"
1230      PIE_LDFLAGS="-pie"
1231      ;;
1232      esac
1233    fi
1234  fi
1235])
1236
1237AC_DEFUN([GCC_STACK_CHECK_CC],[
1238  AC_LANG_ASSERT(C)
1239  if test "X$CC" != "X"; then
1240    AC_CACHE_CHECK([whether ${CC} accepts -fstack-check],
1241      stackcheck_cv_cc,
1242      [stackcheck_old_cflags="$CFLAGS"
1243       CFLAGS="$CFLAGS -fstack-check"
1244       AC_TRY_COMPILE(,, stackcheck_cv_cc=yes, stackcheck_cv_cc=no)
1245       CFLAGS="$stackcheck_old_cflags"
1246      ])
1247    if test $stackcheck_cv_cc = yes; then
1248      CFLAGS="$CFLAGS -fstack-check"
1249    fi
1250  fi
1251])
1252
1253AC_DEFUN([GCC_FLAG_CHECK],[
1254  AC_LANG_ASSERT(C)
1255  if test "X$CC" != "X"; then
1256     AC_MSG_CHECKING([whether ${CC} accepts $1])
1257     saved_cflags="$CFLAGS"
1258     CFLAGS="$CFLAGS -Werror $1"
1259     AC_TRY_COMPILE(,, flag_check_cv=yes, flag_check_cv=no)
1260     CFLAGS="$saved_cflags"
1261
1262     if test $flag_check_cv = yes; then
1263        CFLAGS="$CFLAGS $1"
1264        AC_MSG_RESULT([yes])
1265     else
1266        AC_MSG_RESULT([no])
1267     fi
1268  fi
1269])
1270
1271AC_DEFUN([SAMHAIN_POSIX],[
1272        AC_MSG_CHECKING([whether _POSIX_SOURCE is necessary])
1273        AC_TRY_COMPILE([#include <stdio.h>
1274void fileno(int);int fdopen(int, char *); ],,
1275        [
1276        AC_MSG_RESULT(yes)
1277        AC_DEFINE([_POSIX_SOURCE],1,[Define if POSIX functions are required])
1278        ],
1279        [AC_MSG_RESULT(no)])
1280])dnl
1281
1282dnl checks for a known 64 bit programming environment
1283dnl AC_RUN_IFELSE(PROGRAM,
1284dnl               [ACTION-IF-TRUE], [ACTION-IF-FALSE],
1285dnl               [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR])
1286dnl
1287AC_DEFUN([SAMHAIN_PRG_ENV],[
1288    AC_MSG_CHECKING([for a known 64 bit programming environment])
1289    # Compile and run a program that determines the programming environment
1290    AC_RUN_IFELSE([
1291      AC_LANG_SOURCE([[
1292#include <stdio.h>
1293int main(int argc,char **argv)
1294{
1295  if (argc > 1) {
1296#if defined(__arch64__)
1297  printf("__arch64__\n");
1298#elif defined(__ia64__)
1299  printf("__ia64__\n");
1300#elif defined(__x86_64__)
1301  printf("__x86_64__\n");
1302#elif defined(__LP64__)
1303  printf("__LP64__\n");
1304#elif defined(__64BIT__)
1305  printf("__64BIT__\n");
1306#elif defined(_LP64)
1307  printf("_LP64\n");
1308#elif defined(_M_IA64)
1309  printf("_M_IA64\n");
1310#elif defined(_MIPS_SZLONG) && (_MIPS_SZLONG == 64)
1311  printf("_MIPS_64\n");
1312#else
1313choke me
1314#endif
1315  }
1316  return 0;
1317}
1318      ]])
1319    ],[
1320      # Program compiled and ran, so get version by adding argument.
1321      samhain_prg_ENV=`./conftest$ac_exeext x`
1322      samhain_64=yes
1323      AC_MSG_RESULT([$samhain_prg_ENV])
1324    ],[
1325      AC_MSG_RESULT([none])
1326        ],[
1327      AC_MSG_RESULT([none])
1328        ])
1329])dnl
1330
1331AC_DEFUN([SAMHAIN_X86_64],[
1332        AC_MSG_CHECKING([for x86_64])
1333        AC_TRY_RUN([
1334int main() {
1335__asm__ volatile (
1336"movq %rax, %rax"
1337);
1338return 0;
1339}
1340        ],
1341        [
1342        AC_MSG_RESULT(yes)
1343        samhain_64=yes
1344        tiger_src=sh_tiger1_64.c
1345        samhain_64_asm=yes
1346        ],
1347        [
1348        AC_MSG_RESULT([no])
1349        ],[
1350        AC_MSG_RESULT([no])
1351        ])
1352])dnl
1353
1354
1355AC_DEFUN([SAMHAIN_64],[
1356samhain_64=no
1357tiger_src=sh_tiger1.c
1358samhain_64_asm=no
1359#
1360# if sizeof(unsigned long) = 4, try compiler macros for 64bit
1361#
1362if test "x$ac_cv_sizeof_unsigned_long" = x4; then
1363  if test "x$ac_cv_sizeof_unsigned_long_long" = x8; then
1364        SAMHAIN_PRG_ENV
1365        if test "x$samhain_64" = xyes; then
1366          tiger_src=sh_tiger1_64.c
1367        fi
1368        #
1369        # if GCC and __i386__, use precompiled assembler
1370        #
1371        if test "x$GCC" = xyes; then
1372          AC_MSG_CHECKING([for non-apple non-cygwin i386])
1373          samhain_i386=no
1374          $CC -E -dM - < /dev/null | egrep '__i386__' >/dev/null 2>&1
1375          if test $? = 0; then
1376            case "$host_os" in
1377                 *linux*)
1378                 # apples gcc does not understand the assembly we provide
1379                 $CC -E -dM - < /dev/null | egrep '(__sun__|__APPLE__|__CYGWIN__)' >/dev/null 2>&1 || samhain_i386=yes
1380                 ;;
1381                 *)
1382                 ;;
1383            esac
1384          fi
1385          AC_MSG_RESULT([$samhain_i386])
1386          if test "x$samhain_i386" = xyes; then
1387            GCC_PIE_CC
1388            if test $pie_cv_cc = yes; then
1389               tiger_src=sh_tiger1.s
1390               AC_DEFINE([TIGER_32_BIT_S],1,[Define to use tiger 32 bit i386 assembler])
1391            fi
1392          fi
1393        fi
1394        #
1395        #
1396        #
1397  else
1398        samhain_64=no
1399        tiger_src=sh_tiger1.c
1400  fi
1401else
1402  #
1403  # sizeof(unsigned long) = 8
1404  #
1405  tiger_src=sh_tiger1_64.c
1406  samhain_64=yes
1407  #
1408  # check for x86_64 (enables assembly optimizations)
1409  #
1410  if test "x$GCC" = xyes; then
1411     $CC -E -dM - < /dev/null | egrep '__clang__' >/dev/null 2>&1
1412     if ! test $? = 0; then
1413         case "$host_os" in
1414             *linux*)
1415             SAMHAIN_X86_64
1416             ;;
1417             *bsd*)
1418             SAMHAIN_X86_64
1419             ;;
1420             *)
1421             SAMHAIN_X86_64
1422             ;;
1423         esac
1424     fi
1425  fi
1426fi
1427if test "x$samhain_64" = xyes; then
1428        AC_DEFINE([TIGER_64_BIT],1,[Define to use tiger 64 bit implementation])
1429fi
1430AC_MSG_CHECKING([for 64 bit environment])
1431AC_MSG_RESULT([$samhain_64])
1432AC_MSG_CHECKING([for tiger source to use])
1433AC_MSG_RESULT([$tiger_src])
1434AC_SUBST(tiger_src)
1435])dnl
1436
1437AC_DEFUN([sh_CHECK_POSIX_ACL],
1438[
1439  AC_CHECK_HEADERS(sys/acl.h)
1440  if test $ac_cv_header_sys_acl_h = yes; then
1441
1442        AC_CHECK_LIB([acl], [acl_get_file], sh_lacl=yes, sh_lacl=no)
1443        if test x"$sh_lacl" = xyes; then
1444                LIBACL=-lacl
1445        else
1446                LIBACL=
1447        fi
1448
1449        OLDLIBS="$LIBS"
1450        LIBS="$LIBS $LIBACL"
1451        AC_CHECK_FUNCS([acl_free acl_get_file acl_get_fd],
1452                       [sh_facl=yes],[sh_facl=no])
1453        LIBS="$OLDLIBS"
1454
1455        if test x"$sh_facl" = xyes; then
1456          AC_DEFINE(USE_ACL, 1, [Define if you want ACL support.])
1457          LIBS="$LIBS $LIBACL"
1458        fi
1459  fi
1460])
1461
1462AC_DEFUN([sh_CHECK_XATTR],
1463[
1464  AC_CHECK_HEADERS(attr/xattr.h)
1465  if test $ac_cv_header_attr_xattr_h = yes; then
1466
1467        AC_CHECK_LIB([attr], [getxattr], sh_lattr=yes, sh_lattr=no)
1468        if test x"$sh_lattr" = xyes; then
1469                LIBATTR=-lattr
1470        else
1471                LIBATTR=
1472        fi
1473 
1474        OLDLIBS="$LIBS"
1475        LIBS="$LIBS $LIBATTR"
1476        AC_CHECK_FUNCS([getxattr lgetxattr fgetxattr],
1477                       [sh_fattr=yes],[sh_fattr=no])
1478        LIBS="$OLDLIBS"
1479
1480        if test x"$sh_fattr" = xyes; then
1481          AC_DEFINE(USE_XATTR, 1, [Define if you want extended attributes support.])
1482          LIBS="$LIBS $LIBATTR"
1483        fi
1484  fi
1485])
1486
1487dnl Autoconf macros for libprelude
1488dnl $id$
1489
1490# Modified for LIBPRELUDE -- Yoann Vandoorselaere
1491# Modified for LIBGNUTLS -- nmav
1492# Configure paths for LIBGCRYPT
1493# Shamelessly stolen from the one of XDELTA by Owen Taylor
1494# Werner Koch   99-12-09
1495
1496dnl AM_PATH_LIBPRELUDE([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
1497dnl Test for libprelude, and define LIBPRELUDE_PREFIX, LIBPRELUDE_CFLAGS, LIBPRELUDE_PTHREAD_CFLAGS,
1498dnl LIBPRELUDE_LDFLAGS, and LIBPRELUDE_LIBS
1499dnl
1500AC_DEFUN([AM_PATH_LIBPRELUDE],
1501[dnl
1502dnl Get the cflags and libraries from the libprelude-config script
1503dnl
1504dnl AC_ARG_WITH(libprelude-prefix,
1505dnl          [  --with-libprelude-prefix=PFX   Prefix where libprelude is installed (optional)],
1506dnl          libprelude_config_prefix="$withval", libprelude_config_prefix="")
1507dnl
1508dnl  if test x$libprelude_config_prefix != x ; then
1509dnl     if test x${LIBPRELUDE_CONFIG+set} != xset ; then
1510dnl        LIBPRELUDE_CONFIG=$libprelude_config_prefix/bin/libprelude-config
1511dnl     fi
1512dnl  fi
1513dnl
1514dnl  AC_PATH_PROG(LIBPRELUDE_CONFIG, libprelude-config, no)
1515  min_libprelude_version=ifelse([$1], ,0.1.0,$1)
1516  AC_MSG_CHECKING(for libprelude - version >= $min_libprelude_version)
1517  no_libprelude=""
1518  if test "$LIBPRELUDE_CONFIG" = "no" ; then
1519    no_libprelude=yes
1520  else
1521    LIBPRELUDE_CFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --cflags`
1522    LIBPRELUDE_PTHREAD_CFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --pthread-cflags`
1523    LIBPRELUDE_LDFLAGS=`$LIBPRELUDE_CONFIG $libprelude_config_args --ldflags`
1524    LIBPRELUDE_LIBS=`$LIBPRELUDE_CONFIG $libprelude_config_args --libs`
1525    LIBPRELUDE_PREFIX=`$LIBPRELUDE_CONFIG $libprelude_config_args --prefix`
1526    LIBPRELUDE_CONFIG_PREFIX=`$LIBPRELUDE_CONFIG $libprelude_config_args --config-prefix`
1527    libprelude_config_version=`$LIBPRELUDE_CONFIG $libprelude_config_args --version`
1528
1529
1530      ac_save_CFLAGS="$CFLAGS"
1531      ac_save_LDFLAGS="$LDFLAGS"
1532      ac_save_LIBS="$LIBS"
1533      CFLAGS="$CFLAGS $LIBPRELUDE_CFLAGS"
1534      LDFLAGS="$LDFLAGS $LIBPRELUDE_LDFLAGS"
1535      LIBS="$LIBS $LIBPRELUDE_LIBS"
1536dnl
1537dnl Now check if the installed libprelude is sufficiently new. Also sanity
1538dnl checks the results of libprelude-config to some extent
1539dnl
1540      rm -f conf.libpreludetest
1541      AC_TRY_RUN([
1542#include <stdio.h>
1543#include <stdlib.h>
1544#include <string.h>
1545#include <libprelude/prelude.h>
1546
1547int
1548main ()
1549{
1550    system ("touch conf.libpreludetest");
1551
1552    if( strcmp( prelude_check_version(NULL), "$libprelude_config_version" ) )
1553    {
1554      printf("\n*** 'libprelude-config --version' returned %s, but LIBPRELUDE (%s)\n",
1555             "$libprelude_config_version", prelude_check_version(NULL) );
1556      printf("*** was found! If libprelude-config was correct, then it is best\n");
1557      printf("*** to remove the old version of LIBPRELUDE. You may also be able to fix the error\n");
1558      printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
1559      printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
1560      printf("*** required on your system.\n");
1561      printf("*** If libprelude-config was wrong, set the environment variable LIBPRELUDE_CONFIG\n");
1562      printf("*** to point to the correct copy of libprelude-config, and remove the file config.cache\n");
1563      printf("*** before re-running configure\n");
1564    }
1565    else if ( strcmp(prelude_check_version(NULL), LIBPRELUDE_VERSION ) )
1566    {
1567      printf("\n*** LIBPRELUDE header file (version %s) does not match\n", LIBPRELUDE_VERSION);
1568      printf("*** library (version %s)\n", prelude_check_version(NULL) );
1569    }
1570    else
1571    {
1572      if ( prelude_check_version( "$min_libprelude_version" ) )
1573      {
1574        return 0;
1575      }
1576     else
1577      {
1578        printf("no\n*** An old version of LIBPRELUDE (%s) was found.\n",
1579                prelude_check_version(NULL) );
1580        printf("*** You need a version of LIBPRELUDE newer than %s. The latest version of\n",
1581               "$min_libprelude_version" );
1582        printf("*** LIBPRELUDE is always available from http://www.prelude-ids.org/download/releases.\n");
1583        printf("*** \n");
1584        printf("*** If you have already installed a sufficiently new version, this error\n");
1585        printf("*** probably means that the wrong copy of the libprelude-config shell script is\n");
1586        printf("*** being found. The easiest way to fix this is to remove the old version\n");
1587        printf("*** of LIBPRELUDE, but you can also set the LIBPRELUDE_CONFIG environment to point to the\n");
1588        printf("*** correct copy of libprelude-config. (In this case, you will have to\n");
1589        printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
1590        printf("*** so that the correct libraries are found at run-time))\n");
1591      }
1592    }
1593  return 1;
1594}
1595],, no_libprelude=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
1596       CFLAGS="$ac_save_CFLAGS"
1597       LIBS="$ac_save_LIBS"
1598       LDFLAGS="$ac_save_LDFLAGS"
1599  fi
1600
1601  if test "x$no_libprelude" = x ; then
1602     AC_MSG_RESULT(yes)
1603     ifelse([$2], , :, [$2])
1604  else
1605     if test -f conf.libpreludetest ; then
1606        :
1607     else
1608        AC_MSG_RESULT(no)
1609     fi
1610     if test "$LIBPRELUDE_CONFIG" = "no" ; then
1611       echo "*** The libprelude-config script installed by LIBPRELUDE could not be found"
1612       echo "*** If LIBPRELUDE was installed in PREFIX, make sure PREFIX/bin is in"
1613       echo "*** your path, or set the LIBPRELUDE_CONFIG environment variable to the"
1614       echo "*** full path to libprelude-config."
1615     else
1616       if test -f conf.libpreludetest ; then
1617        :
1618       else
1619          echo "*** Could not run libprelude test program, checking why..."
1620          CFLAGS="$CFLAGS $LIBPRELUDE_CFLAGS"
1621          LDFLAGS="$LDFLAGS $LIBPRELUDE_LDFLAGS"
1622          LIBS="$LIBS $LIBPRELUDE_LIBS"
1623          AC_TRY_LINK([
1624#include <stdio.h>
1625#include <stdlib.h>
1626#include <string.h>
1627#include <libprelude/prelude.h>
1628],      [ return !!prelude_check_version(NULL); ],
1629        [ echo "*** The test program compiled, but did not run. This usually means"
1630          echo "*** that the run-time linker is not finding LIBPRELUDE or finding the wrong"
1631          echo "*** version of LIBPRELUDE. If it is not finding LIBPRELUDE, you'll need to set your"
1632          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
1633          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
1634          echo "*** is required on your system"
1635          echo "***"
1636          echo "*** If you have an old version installed, it is best to remove it, although"
1637          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
1638          echo "***" ],
1639        [ echo "*** The test program failed to compile or link. See the file config.log for the"
1640          echo "*** exact error that occured. This usually means LIBPRELUDE was incorrectly installed"
1641          echo "*** or that you have moved LIBPRELUDE since it was installed. In the latter case, you"
1642          echo "*** may want to edit the libprelude-config script: $LIBPRELUDE_CONFIG" ])
1643          CFLAGS="$ac_save_CFLAGS"
1644          LDFLAGS="$ac_save_LDFLAGS"
1645          LIBS="$ac_save_LIBS"
1646       fi
1647     fi
1648     LIBPRELUDE_CFLAGS=""
1649     LIBPRELUDE_LDFLAGS=""
1650     LIBPRELUDE_LIBS=""
1651     ifelse([$3], , :, [$3])
1652  fi
1653  rm -f conf.libpreludetest
1654  AC_SUBST(LIBPRELUDE_CFLAGS)
1655  AC_SUBST(LIBPRELUDE_PTHREAD_CFLAGS)
1656  AC_SUBST(LIBPRELUDE_LDFLAGS)
1657  AC_SUBST(LIBPRELUDE_LIBS)
1658  AC_SUBST(LIBPRELUDE_PREFIX)
1659  AC_SUBST(LIBPRELUDE_CONFIG_PREFIX)
1660])
1661
1662
1663##### http://autoconf-archive.cryp.to/acx_pthread.html
1664#
1665# SYNOPSIS
1666#
1667#   ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
1668#
1669# DESCRIPTION
1670#
1671#   This macro figures out how to build C programs using POSIX threads.
1672#   It sets the PTHREAD_LIBS output variable to the threads library and
1673#   linker flags, and the PTHREAD_CFLAGS output variable to any special
1674#   C compiler flags that are needed. (The user can also force certain
1675#   compiler flags/libs to be tested by setting these environment
1676#   variables.)
1677#
1678#   Also sets PTHREAD_CC to any special C compiler that is needed for
1679#   multi-threaded programs (defaults to the value of CC otherwise).
1680#   (This is necessary on AIX to use the special cc_r compiler alias.)
1681#
1682#   NOTE: You are assumed to not only compile your program with these
1683#   flags, but also link it with them as well. e.g. you should link
1684#   with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS
1685#   $LIBS
1686#
1687#   If you are only building threads programs, you may wish to use
1688#   these variables in your default LIBS, CFLAGS, and CC:
1689#
1690#          LIBS="$PTHREAD_LIBS $LIBS"
1691#          CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1692#          CC="$PTHREAD_CC"
1693#
1694#   In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
1695#   constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
1696#   that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
1697#
1698#   ACTION-IF-FOUND is a list of shell commands to run if a threads
1699#   library is found, and ACTION-IF-NOT-FOUND is a list of commands to
1700#   run it if it is not found. If ACTION-IF-FOUND is not specified, the
1701#   default action will define HAVE_PTHREAD.
1702#
1703#   Please let the authors know if this macro fails on any platform, or
1704#   if you have any other suggestions or comments. This macro was based
1705#   on work by SGJ on autoconf scripts for FFTW (http://www.fftw.org/)
1706#   (with help from M. Frigo), as well as ac_pthread and hb_pthread
1707#   macros posted by Alejandro Forero Cuervo to the autoconf macro
1708#   repository. We are also grateful for the helpful feedback of
1709#   numerous users.
1710#
1711# LAST MODIFICATION
1712#
1713#   2007-07-29
1714#
1715# COPYLEFT
1716#
1717#   Copyright (c) 2007 Steven G. Johnson <stevenj@alum.mit.edu>
1718#
1719#   This program is free software: you can redistribute it and/or
1720#   modify it under the terms of the GNU General Public License as
1721#   published by the Free Software Foundation, either version 3 of the
1722#   License, or (at your option) any later version.
1723#
1724#   This program is distributed in the hope that it will be useful, but
1725#   WITHOUT ANY WARRANTY; without even the implied warranty of
1726#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1727#   General Public License for more details.
1728#
1729#   You should have received a copy of the GNU General Public License
1730#   along with this program. If not, see
1731#   <http://www.gnu.org/licenses/>.
1732#
1733#   As a special exception, the respective Autoconf Macro's copyright
1734#   owner gives unlimited permission to copy, distribute and modify the
1735#   configure scripts that are the output of Autoconf when processing
1736#   the Macro. You need not follow the terms of the GNU General Public
1737#   License when using or distributing such scripts, even though
1738#   portions of the text of the Macro appear in them. The GNU General
1739#   Public License (GPL) does govern all other use of the material that
1740#   constitutes the Autoconf Macro.
1741#
1742#   This special exception to the GPL applies to versions of the
1743#   Autoconf Macro released by the Autoconf Macro Archive. When you
1744#   make and distribute a modified version of the Autoconf Macro, you
1745#   may extend this special exception to the GPL to apply to your
1746#   modified version as well.
1747
1748AC_DEFUN([ACX_PTHREAD], [
1749AC_REQUIRE([AC_CANONICAL_HOST])
1750AC_LANG_SAVE
1751AC_LANG_C
1752acx_pthread_ok=no
1753
1754# We used to check for pthread.h first, but this fails if pthread.h
1755# requires special compiler flags (e.g. on True64 or Sequent).
1756# It gets checked for in the link test anyway.
1757
1758# First of all, check if the user has set any of the PTHREAD_LIBS,
1759# etcetera environment variables, and if threads linking works using
1760# them:
1761if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
1762        save_CFLAGS="$CFLAGS"
1763        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1764        save_LIBS="$LIBS"
1765        LIBS="$PTHREAD_LIBS $LIBS"
1766        AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
1767        AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
1768        AC_MSG_RESULT($acx_pthread_ok)
1769        if test x"$acx_pthread_ok" = xno; then
1770                PTHREAD_LIBS=""
1771                PTHREAD_CFLAGS=""
1772        fi
1773        LIBS="$save_LIBS"
1774        CFLAGS="$save_CFLAGS"
1775fi
1776
1777# We must check for the threads library under a number of different
1778# names; the ordering is very important because some systems
1779# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
1780# libraries is broken (non-POSIX).
1781
1782# Create a list of thread flags to try.  Items starting with a "-" are
1783# C compiler flags, and other items are library names, except for "none"
1784# which indicates that we try without any flags at all, and "pthread-config"
1785# which is a program returning the flags for the Pth emulation library.
1786
1787acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
1788
1789# The ordering *is* (sometimes) important.  Some notes on the
1790# individual items follow:
1791
1792# pthreads: AIX (must check this before -lpthread)
1793# none: in case threads are in libc; should be tried before -Kthread and
1794#       other compiler flags to prevent continual compiler warnings
1795# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
1796# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
1797# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
1798# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
1799# -pthreads: Solaris/gcc
1800# -mthreads: Mingw32/gcc, Lynx/gcc
1801# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
1802#      doesn't hurt to check since this sometimes defines pthreads too;
1803#      also defines -D_REENTRANT)
1804#      ... -mt is also the pthreads flag for HP/aCC
1805# pthread: Linux, etcetera
1806# --thread-safe: KAI C++
1807# pthread-config: use pthread-config program (for GNU Pth library)
1808
1809case "${host_cpu}-${host_os}" in
1810        *solaris*)
1811
1812        # On Solaris (at least, for some versions), libc contains stubbed
1813        # (non-functional) versions of the pthreads routines, so link-based
1814        # tests will erroneously succeed.  (We need to link with -pthreads/-mt/
1815        # -lpthread.)  (The stubs are missing pthread_cleanup_push, or rather
1816        # a function called by this macro, so we could check for that, but
1817        # who knows whether they'll stub that too in a future libc.)  So,
1818        # we'll just look for -pthreads and -lpthread first:
1819
1820        acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
1821        ;;
1822esac
1823
1824if test x"$acx_pthread_ok" = xno; then
1825for flag in $acx_pthread_flags; do
1826
1827        case $flag in
1828                none)
1829                AC_MSG_CHECKING([whether pthreads work without any flags])
1830                ;;
1831
1832                -pthread)
1833                AC_MSG_CHECKING([whether pthreads work with $flag])
1834                PTHREAD_CFLAGS="$flag"
1835                ;;
1836
1837                -*)
1838                AC_MSG_CHECKING([whether pthreads work with $flag])
1839                PTHREAD_CFLAGS="$flag"
1840                ;;
1841
1842                pthread-config)
1843                AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
1844                if test x"$acx_pthread_config" = xno; then continue; fi
1845                PTHREAD_CFLAGS="`pthread-config --cflags`"
1846                PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
1847                ;;
1848
1849                *)
1850                AC_MSG_CHECKING([for the pthreads library -l$flag])
1851                PTHREAD_LIBS="-l$flag"
1852                ;;
1853        esac
1854
1855        save_LIBS="$LIBS"
1856        save_CFLAGS="$CFLAGS"
1857        save_LDFLAGS="$LDFLAGS"
1858        LIBS="$PTHREAD_LIBS $LIBS"
1859        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1860        LDFLAGS="$LDFLAGS $PTHREAD_CFLAGS"
1861
1862        # Check for various functions.  We must include pthread.h,
1863        # since some functions may be macros.  (On the Sequent, we
1864        # need a special flag -Kthread to make this header compile.)
1865        # We check for pthread_join because it is in -lpthread on IRIX
1866        # while pthread_create is in libc.  We check for pthread_attr_init
1867        # due to DEC craziness with -lpthreads.  We check for
1868        # pthread_cleanup_push because it is one of the few pthread
1869        # functions on Solaris that doesn't have a non-functional libc stub.
1870        # We try pthread_create on general principles.
1871        AC_TRY_LINK([#include <pthread.h>],
1872                    [pthread_t th; pthread_join(th, 0);
1873                     pthread_attr_init(0); pthread_cleanup_push(0, 0);
1874                     pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
1875                    [acx_pthread_ok=yes])
1876
1877        LIBS="$save_LIBS"
1878        LDFLAGS="$save_LDFLAGS"
1879        CFLAGS="$save_CFLAGS"
1880
1881        AC_MSG_RESULT($acx_pthread_ok)
1882        if test "x$acx_pthread_ok" = xyes; then
1883                break;
1884        fi
1885
1886        PTHREAD_LIBS=""
1887        PTHREAD_CFLAGS=""
1888done
1889fi
1890
1891# Various other checks:
1892if test "x$acx_pthread_ok" = xyes; then
1893        save_LIBS="$LIBS"
1894        LIBS="$PTHREAD_LIBS $LIBS"
1895        save_CFLAGS="$CFLAGS"
1896        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
1897
1898        # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
1899        AC_MSG_CHECKING([for joinable pthread attribute])
1900        attr_name=unknown
1901        for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
1902            AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
1903                        [attr_name=$attr; break])
1904        done
1905        AC_MSG_RESULT($attr_name)
1906        if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
1907            AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
1908                               [Define to necessary symbol if this constant
1909                                uses a non-standard name on your system.])
1910        fi
1911
1912        # Solaris lossage: default is obsolete semantics for getpwnam_r,
1913        # getpwuid_r, getgrgid_r, unless _POSIX_PTHREAD_SEMANTICS is defined
1914        AC_MSG_CHECKING([if more special flags are required for pthreads])
1915        flag=no
1916        case "${host_cpu}-${host_os}" in
1917            *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
1918            *-osf* | *-hpux*) flag="-D_REENTRANT";;
1919            *solaris*) flag="-D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT";;
1920        esac
1921        AC_MSG_RESULT(${flag})
1922        if test "x$flag" != xno; then
1923            PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
1924        fi
1925
1926        # Detect PTHREAD_MUTEX_RECURSIVE
1927        AC_MSG_CHECKING([for recursive mutexes])
1928        mutex_recursive=no
1929        AC_TRY_LINK([
1930#define _XOPEN_SOURCE 500
1931#include <pthread.h>], [
1932pthread_mutexattr_t   mta;
1933pthread_mutexattr_settype(&mta, PTHREAD_MUTEX_RECURSIVE);
1934return 0;],[mutex_recursive=yes])
1935        if test "x$mutex_recursive" = "xyes"
1936        then
1937          AC_DEFINE(HAVE_PTHREAD_MUTEX_RECURSIVE,1,[Define if you have recursive mutexes.])
1938        fi
1939        AC_MSG_RESULT($mutex_recursive)
1940
1941        LIBS="$save_LIBS"
1942        CFLAGS="$save_CFLAGS"
1943
1944        # More AIX lossage: must compile with xlc_r or cc_r
1945        if test x"$GCC" != xyes; then
1946          AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
1947        else
1948          PTHREAD_CC=$CC
1949        fi
1950else
1951        PTHREAD_CC="$CC"
1952fi
1953
1954if test x"$acx_pthread_ok" = xyes; then
1955   PTHREAD_CFLAGS="${PTHREAD_CFLAGS} -DUSE_MALLOC_LOCK=1"
1956fi
1957
1958AC_SUBST(PTHREAD_LIBS)
1959AC_SUBST(PTHREAD_CFLAGS)
1960AC_SUBST(PTHREAD_LDFLAGS)
1961AC_SUBST(PTHREAD_CC)
1962
1963# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
1964if test x"$acx_pthread_ok" = xyes; then
1965        ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
1966        :
1967else
1968        acx_pthread_ok=no
1969        $2
1970fi
1971AC_LANG_RESTORE
1972])dnl ACX_PTHREAD
1973
1974
1975
1976
1977dnl Copyright © 2004 Loic Dachary <loic@senga.org>
1978dnl
1979dnl This program is free software; you can redistribute it and/or modify
1980dnl it under the terms of the GNU General Public License as published by
1981dnl the Free Software Foundation; either version 2 of the License, or (at
1982dnl your option) any later version.
1983dnl
1984dnl Use ZLIB_HOME instead of option
1985
1986AC_DEFUN([CHECK_ZLIB],[
1987
1988if test "x${ZLIB_HOME}" = "x"; then
1989        ZLIB_HOME=/usr/local
1990        if test ! -f "${ZLIB_HOME}/include/zlib.h"
1991        then
1992                ZLIB_HOME=/usr
1993        fi
1994fi
1995
1996zlib_found=no
1997
1998ZLIB_OLD_LDFLAGS=$LDFLAGS
1999ZLIB_OLD_CPPFLAGS=$LDFLAGS
2000if test "x${ZLIB_HOME}" = "x/usr"; then
2001        :
2002else
2003        LDFLAGS="$LDFLAGS -L${ZLIB_HOME}/lib"
2004        CPPFLAGS="$CPPFLAGS -I${ZLIB_HOME}/include"
2005fi
2006AC_LANG_SAVE
2007AC_LANG_C
2008AC_CHECK_LIB(z, inflateEnd, [zlib_cv_libz=yes], [zlib_cv_libz=no])
2009AC_CHECK_HEADER(zlib.h, [zlib_cv_zlib_h=yes], [zlib_cv_zlib_h=no])
2010AC_LANG_RESTORE
2011if test "$zlib_cv_libz" = "yes" -a "$zlib_cv_zlib_h" = "yes"
2012then
2013        #
2014        # If both library and header were found, use them
2015        #
2016        AC_CHECK_LIB(z, inflateEnd)
2017        AC_MSG_CHECKING([zlib in ${ZLIB_HOME}])
2018        AC_MSG_RESULT(ok)
2019        AC_CHECK_FUNCS([compressBound])
2020        zlib_found=yes
2021else
2022        #
2023        # If either header or library was not found, revert and bomb
2024        #
2025        AC_MSG_CHECKING(zlib in ${ZLIB_HOME})
2026        LDFLAGS="$ZLIB_OLD_LDFLAGS"
2027        CPPFLAGS="$ZLIB_OLD_CPPFLAGS"
2028        AC_MSG_RESULT(failed)
2029        AC_MSG_WARN([zlib not found in ZLIB_HOME, /usr/local, or /usr])
2030fi
2031
2032])
2033
2034# SH_PROG_LD
2035# ----------
2036# find the pathname to the GNU or non-GNU linker
2037AC_DEFUN([SH_PROG_LD],
2038[
2039AC_REQUIRE([AC_PROG_CC])dnl
2040AC_REQUIRE([AC_CANONICAL_HOST])dnl
2041AC_REQUIRE([AC_CANONICAL_BUILD])dnl
2042ac_prog=ld
2043if test "$GCC" = yes; then
2044  # Check if gcc -print-prog-name=ld gives a path.
2045  AC_MSG_CHECKING([for ld used by $CC])
2046  case $host in
2047  *-*-mingw*)
2048    # gcc leaves a trailing carriage return which upsets mingw
2049    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
2050  *)
2051    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
2052  esac
2053  case $ac_prog in
2054    # Accept absolute paths.
2055    [[\\/]]* | ?:[[\\/]]*)
2056      re_direlt='/[[^/]][[^/]]*/\.\./'
2057      # Canonicalize the pathname of ld
2058      ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
2059      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
2060        ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
2061      done
2062      test -z "$LD" && LD="$ac_prog"
2063      ;;
2064  "")
2065    # If it fails, then pretend we aren't using GCC.
2066    ac_prog=ld
2067    ;;
2068  *)
2069    # If it is relative, then search for the first ld in PATH.
2070    with_gnu_ld=unknown
2071    ;;
2072  esac
2073else
2074  AC_MSG_CHECKING([for ld])
2075fi
2076AC_CACHE_VAL(lt_cv_path_LD,
2077[if test -z "$LD"; then
2078  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
2079  for ac_dir in $PATH; do
2080    IFS="$lt_save_ifs"
2081    test -z "$ac_dir" && ac_dir=.
2082    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
2083      lt_cv_path_LD="$ac_dir/$ac_prog"
2084      # Check to see if the program is GNU ld.  I'd rather use --version,
2085      # but apparently some variants of GNU ld only accept -v.
2086      # Break only if it was the GNU/non-GNU ld that we prefer.
2087      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
2088      *GNU* | *'with BFD'*)
2089        with_gnu_ld=yes
2090        ;;
2091      *)
2092        with_gnu_ld=no
2093        ;;
2094      esac
2095    fi
2096  done
2097  IFS="$lt_save_ifs"
2098else
2099  lt_cv_path_LD="$LD" # Let the user override the test with a path.
2100fi])
2101LD="$lt_cv_path_LD"
2102if test -n "$LD"; then
2103  AC_MSG_RESULT($LD)
2104else
2105  AC_MSG_RESULT(no)
2106fi
2107test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
2108AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
2109[# I'd rather use --version here, but apparently some GNU lds only accept -v.
2110case `$LD -v 2>&1 </dev/null` in
2111*GNU* | *'with BFD'*)
2112  lt_cv_prog_gnu_ld=yes
2113  ;;
2114*)
2115  lt_cv_prog_gnu_ld=no
2116  ;;
2117esac])
2118with_gnu_ld=$lt_cv_prog_gnu_ld
2119])# AC_PROG_LD_GNU
2120
2121# SH_STRFTIME_Z
2122# -------------
2123# check whether strftime supports %z
2124AC_DEFUN([SH_STRFTIME_Z],
2125[
2126AC_MSG_CHECKING([whether strftime supports %z])
2127AC_TRY_RUN([
2128#include <time.h>
2129#include <string.h>
2130int main()
2131{
2132   struct tm tm;
2133   char tt[64];
2134   memset(&tm, 0, sizeof(tm));
2135   strftime(tt, sizeof(tt), "%z", &tm);
2136
2137   if (strlen(tt) != 5) return 1;
2138   return 0;
2139}
2140],
2141[
2142AC_MSG_RESULT([yes])
2143AC_DEFINE(HAVE_STRFTIME_Z, 1, [strftime supports %z])
2144],
2145[
2146AC_MSG_RESULT([no])
2147],[
2148AC_MSG_RESULT([no])
2149])])
2150
2151AC_DEFUN([SH_GCC_VERSION], [
2152  GCC_VERSION=""
2153  gcc_VERSION_MAJOR=0
2154  gcc_VERSION_MINOR=0
2155  AC_MSG_CHECKING([for gcc version])
2156  if test "x$GCC" = "xyes"
2157  then
2158        $CC -dumpversion >/dev/null 2>&1
2159        if test $? -eq 0
2160        then
2161                GCC_VERSION=`$CC -dumpversion`
2162                gcc_VERSION_MAJOR=`echo $GCC_VERSION | cut -d'.' -f1`
2163                gcc_VERSION_MINOR=`echo $GCC_VERSION | cut -d'.' -f2`
2164                AC_DEFINE_UNQUOTED(GCC_VERSION_MAJOR, [${gcc_VERSION_MAJOR}], [gcc version major])
2165                AC_DEFINE_UNQUOTED(GCC_VERSION_MINOR, [${gcc_VERSION_MINOR}], [gcc version minor])
2166                AC_MSG_RESULT([$GCC_VERSION])
2167        else
2168                AC_MSG_RESULT([$CC -dumpversion working])
2169        fi
2170  else
2171        AC_MSG_RESULT([compiler is not gcc])
2172  fi
2173])
2174
2175
2176
2177dnl *-*wedit:notab*-*  Please keep this as the last line.
2178
Note: See TracBrowser for help on using the repository browser.