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1 dnl
2 dnl originally from ncftp 2.3.0
3 dnl added wi_EXTRA_PDIR and wi_ANSI_C
4 dnl $Id$
5 dnl
6 AC_DEFUN([wi_EXTRA_IDIR], [
7 incdir="$1"
8 if test -r $incdir ; then
9         case "$CPPFLAGS" in
10                 *-I${incdir}*)
11                         # echo "   + already had $incdir" 1>&6
12                         ;;
13                 *)
14                         if test "$CPPFLAGS" = "" ; then
15                                 CPPFLAGS="-I$incdir"
16                         else
17                                 CPPFLAGS="$CPPFLAGS -I$incdir"
18                         fi
19                         echo "   + found $incdir" 1>&6
20                         ;;
21         esac
22 fi
23 ])
24 dnl
25 dnl
26 dnl
27 dnl
28 AC_DEFUN([wi_EXTRA_LDIR], [
29 mylibdir="$1"
30 if test -r $mylibdir ; then
31         case "$LDFLAGS" in
32                 *-L${mylibdir}*)
33                         # echo "   + already had $mylibdir" 1>&6
34                         ;;
35                 *)
36                         if test "$LDFLAGS" = "" ; then
37                                 LDFLAGS="-L$mylibdir"
38                         else
39                                 LDFLAGS="$LDFLAGS -L$mylibdir"
40                         fi
41                         echo "   + found $mylibdir" 1>&6
42                         ;;
43         esac
44 fi
45 ])
46 dnl
47 dnl __FP__
48 dnl
49 dnl
50 AC_DEFUN([wi_EXTRA_PDIR], [
51 progdir="$1"
52 if test -r $progdir ; then
53         case "$PATH" in
54                 *:${progdir}*)
55                         # echo "   + already had $progdir" 1>&6
56                         ;;
57                 *${progdir}:*)
58                         # echo "   + already had $progdir" 1>&6
59                         ;;
60                 *)
61                         if test "$PATH" = "" ; then
62                                 PATH="$progdir"
63                         else
64                                 PATH="$PATH:$progdir"
65                         fi
66                         echo "   + found $progdir" 1>&6
67                         ;;
68         esac
69 fi
70 ])
71 dnl
72 dnl
73 dnl If you want to also look for include and lib subdirectories in the
74 dnl $HOME tree, you supply "yes" as the first argument to this macro.
75 dnl
76 dnl If you want to look for subdirectories in include/lib directories,
77 dnl you pass the names in argument 3, otherwise pass a dash.
78 dnl
79 AC_DEFUN([wi_EXTRA_DIRS], [echo "checking for extra include and lib directories..." 1>&6
80 ifelse([$1], yes, [dnl
81 b1=`cd .. ; pwd`
82 b2=`cd ../.. ; pwd`
83 exdirs="$HOME $j $b1 $b2 $prefix $2"
84 ],[dnl
85 exdirs="$prefix $2"
86 ])
87 subexdirs="$3"
88 if test "$subexdirs" = "" ; then
89         subexdirs="-"
90 fi
91 for subexdir in $subexdirs ; do
92 if test "$subexdir" = "-" ; then
93         subexdir=""
94 else
95         subexdir="/$subexdir"
96 fi
97 for exdir in $exdirs ; do
98         if test "$exdir" != "/usr" || test "$subexdir" != ""; then
99                 incdir="${exdir}/include${subexdir}"
100                 wi_EXTRA_IDIR($incdir)
101
102                 mylibdir="${exdir}/lib${subexdir}"
103                 wi_EXTRA_LDIR($mylibdir)
104
105                 progdir="${exdir}/bin${subexdir}"
106                 wi_EXTRA_PDIR($progdir)
107         fi
108 done
109 done
110 ])
111 dnl
112 dnl
113 dnl
114 AC_DEFUN([wi_HPUX_CFLAGS],
115 [AC_MSG_CHECKING(if HP-UX ansi C compiler flags are needed)
116 AC_REQUIRE([AC_PROG_CC])
117 os=`uname -s | tr '[A-Z]' '[a-z]'`
118 ac_cv_hpux_flags=no
119 if test "$os" = hp-ux ; then
120         if test "$ac_cv_prog_gcc" = yes ; then
121                 if test "$CFLAGS" != "" ; then
122                         # Shouldn't be in there.
123                         CFLAGS=`echo "$CFLAGS" | sed 's/-Aa//g'`
124                 fi
125         else
126                 # If you're not using gcc, then you better have a cc/c89
127                 # that is usable.  If you have the barebones compiler, it
128                 # won't work.  The good compiler uses -Aa for the ANSI
129                 # compatible stuff.
130                 x=`echo $CFLAGS | grep 'Aa' 2>/dev/null`
131                 if test "$x" = "" ; then
132                         CFLAGS="$CFLAGS -Aa"
133                 fi
134                 ac_cv_hpux_flags=yes
135         fi
136         # Also add _HPUX_SOURCE to get the extended namespace.
137         x=`echo $CFLAGS | grep '_HPUX_SOURCE' 2>/dev/null`
138         if test "$x" = "" ; then
139                 CFLAGS="$CFLAGS -D_HPUX_SOURCE"
140         fi
141 fi
142 AC_MSG_RESULT($ac_cv_hpux_flags)
143 ])
144 dnl
145 dnl
146 dnl
147 AC_DEFUN([wi_CFLAGS], [AC_REQUIRE([AC_PROG_CC])
148 wi_HPUX_CFLAGS
149         if test "$CFLAGS" = "" ; then
150                 CFLAGS="-O"
151         elif test "$ac_cv_prog_gcc" = "yes" ; then
152                 case "$CFLAGS" in
153                         *"-g -O"*)
154                                 #echo "using -g as default gcc CFLAGS" 1>&6
155                                 CFLAGS=`echo $CFLAGS | sed 's/-g\ -O/-O/'`
156                                 ;;
157                         *"-O -g"*)
158                                 # Leave the -g, but remove all -O options.
159                                 #echo "using -g as default gcc CFLAGS" 1>&6
160                                 CFLAGS=`echo $CFLAGS | sed 's/-O\ -g/-O/'`
161                                 ;;
162                 esac
163         fi
164 ])
165 dnl
166 dnl
167 dnl
168 AC_DEFUN([wi_PROTOTYPES], [
169 AC_MSG_CHECKING(if the compiler supports function prototypes)
170 AC_TRY_COMPILE(,[extern void exit(int status);],[wi_cv_prototypes=yes
171 AC_DEFINE(PROTOTYPES)],wi_cv_prototypes=no)
172 AC_MSG_RESULT($wi_cv_prototypes)
173 ])
174 dnl
175 dnl
176 dnl
177 AC_DEFUN([wi_ANSI_C], [
178 AC_MSG_CHECKING(ANSI-style function definitions)
179 AC_TRY_COMPILE(,[int blubb(int x) { return 0; }],[wi_cv_ansi_funcs=yes
180 AC_DEFINE(ANSI_FUNCS)],wi_cv_ansi_funcs=no)
181 AC_MSG_RESULT($wi_cv_ansi_funcs)
182 ])
183 dnl
184 dnl
185 dnl
186 AC_DEFUN([wi_HEADER_SYS_SELECT_H], [
187 # See if <sys/select.h> is includable after <sys/time.h>
188 if test "$ac_cv_header_sys_time_h" = no ; then
189 AC_CHECK_HEADERS(sys/time.h sys/select.h)
190 else
191 AC_CHECK_HEADERS(sys/select.h)
192 fi
193 if test "$ac_cv_header_sys_select_h" = yes ; then
194         AC_MSG_CHECKING([if <sys/select.h> is compatible with <sys/time.h>])
195         selecth=yes
196         if test "$ac_cv_header_sys_time_h" = yes ; then
197                 AC_TRY_COMPILE([#include <sys/time.h>
198                 #include <sys/select.h>],[
199                 fd_set a;
200                 struct timeval tmval;
201
202                 tmval.tv_sec = 0;],selecth=yes,selecth=no)
203
204                 if test "$selecth" = yes ; then
205                         AC_DEFINE(CAN_USE_SYS_SELECT_H)
206                 fi
207         fi
208         AC_MSG_RESULT($selecth)
209 fi
210 ])
211 dnl
212 dnl
213 dnl
214 AC_DEFUN([wi_LIB_RESOLV], [
215 # See if we could access two well-known sites without help of any special
216 # libraries, like resolv.
217
218 AC_TRY_RUN([
219 #include <sys/types.h>
220 #include <sys/socket.h>
221 #include <netinet/in.h>
222 #include <netdb.h>
223  
224 main()
225 {
226         struct hostent *hp1, *hp2;
227         int result;
228
229         hp1 = gethostbyname("gatekeeper.dec.com");
230         hp2 = gethostbyname("ftp.ncsa.uiuc.edu");
231         result = ((hp1 != (struct hostent *) 0) && (hp2 != (struct hostent *) 0));
232         exit(! result);
233 }],look_for_resolv=no,look_for_resolv=yes,look_for_resolv=yes)
234
235 AC_MSG_CHECKING([if we need to look for -lresolv])
236 AC_MSG_RESULT($look_for_resolv)
237 if test "$look_for_resolv" = yes ; then
238 AC_CHECK_LIB(resolv,main)
239 else
240         ac_cv_lib_resolv=no
241 fi
242 ])
243 dnl
244 dnl
245 dnl
246
247 AC_DEFUN([wi_LIB_NSL], [
248 AC_MSG_CHECKING(if we can use -lnsl)
249 ac_save_LIBS="$LIBS";
250 LIBS="$LIBS -lnsl";
251 AC_CACHE_VAL(r_cv_use_libnsl, [
252 AC_TRY_RUN(
253 main() { if (getpwuid(getuid())) exit(0); exit(-1); },
254 nc_cv_use_libnsl=yes, nc_cv_use_libnsl=no, nc_cv_use_libnsl=no)
255 ])
256 if test "$nc_cv_use_libnsl" = "no"; then LIBS="$ac_save_LIBS"; fi
257 AC_MSG_RESULT($nc_cv_use_libnsl)
258 ])dnl
259
260 dnl
261 dnl
262 dnl
263
264 AC_DEFUN([nc_PATH_PROG_ZCAT], [
265 AC_PATH_PROG(GZCAT,gzcat)
266 AC_PATH_PROG(ZCAT,zcat)
267 if test "x$GZCAT" = x ; then
268         if test "x$ZCAT" != x ; then
269                 # See if zcat is really gzcat.  gzcat has a --version option, regular
270                 # zcat does not.
271                 AC_MSG_CHECKING(if zcat is really gzcat in disguise)
272                 if $ZCAT --version 2> /dev/null ; then
273                         AC_DEFINE_UNQUOTED(GZCAT, "$ZCAT")
274                         AC_MSG_RESULT(yes)
275                 else
276                         AC_MSG_RESULT(no)
277                 fi
278         fi
279 else
280         AC_DEFINE_UNQUOTED(GZCAT, "$GZCAT")
281 fi
282
283 if test "x$ZCAT" != x ; then
284         AC_DEFINE_UNQUOTED(ZCAT, "$ZCAT")
285 fi
286 ])
287 dnl
288 dnl
289 dnl
290 AC_DEFUN([wi_SYSV_EXTRA_DIRS], [
291 # Use System V because their curses extensions are required.  This must
292 # be done early so we use the -I and -L in the library checks also.
293 # This is mostly a Solaris/SunOS hack.  Note that doing this will also
294 # use all of the other System V libraries and headers.
295
296 AC_MSG_CHECKING(for alternative System V libraries)
297 if test -f /usr/5include/curses.h ; then
298         CPPFLAGS="$CPPFLAGS -I/usr/5include"
299         LDFLAGS="$LDFLAGS -L/usr/5lib"
300         AC_MSG_RESULT(yes)
301 else
302         AC_MSG_RESULT(no)
303 fi
304 ])
305 dnl
306 dnl
307 dnl
308 AC_DEFUN([wi_DEFINE_UNAME], [
309 # Get first 127 chars of all uname information.  Some folks have
310 # way too much stuff there, so grab only the first 127.
311 unam=`uname -a 2>/dev/null | cut -c1-127`
312 if test "$unam" != "" ; then
313         AC_DEFINE_UNQUOTED(UNAME, "$unam")
314 fi
315 ])
316 dnl
317 dnl
318 dnl
319 AC_DEFUN([wi_READLINE_WITH_NCURSES], [
320 # Readline and Ncurses could both define "backspace".
321 # Warn about this if we have both things in our definitions list.
322
323 if test "$ac_cv_lib_readline" = yes && test "$ac_cv_lib_ncurses" = yes ; then
324
325 AC_MSG_CHECKING(if readline and ncurses will link together)
326 j="$LIBS"
327 LIBS="-lreadline -lncurses"
328 AC_TRY_LINK(,[
329 readline("prompt");
330 endwin();
331 ],k=yes,k=no)
332 if test "$k" = no ; then
333         AC_MSG_RESULT(no)
334         # Remove '-lreadline' from LIBS.
335         LIBS=`echo $j | sed s/-lreadline//g`
336         ac_cv_lib_readline=no
337         AC_WARN([The versions of GNU readline and ncurses you have installed on this system
338 can't be used together, because they use the same symbol, backspace. If
339 possible, recompile one of the libraries with -Dbackspace=back_space, then
340 re-run configure.])
341
342 else
343         AC_MSG_RESULT(yes)
344         LIBS="$j"
345 fi
346
347 fi
348 ])
349 dnl
350 dnl
351 dnl
352
353 dnl AC_EXT_DAYLIGHT
354 dnl Check for an external variable daylight. Stolen from w3c-libwww.
355 AC_DEFUN([AC_EXT_DAYLIGHT],
356 [ AC_MSG_CHECKING(int daylight variable)
357 AC_TRY_COMPILE([#include <time.h>], [return daylight;],
358   have_daylight=yes,
359   have_daylight=no)
360 AC_MSG_RESULT($have_daylight)
361 ])dnl
362
363 dnl AC_EXT_TIMEZONE
364 dnl Check for an external variable timezone. Stolen from tcl-8.0.
365 AC_DEFUN([AC_EXT_TIMEZONE],
366 [
367 #
368 # Its important to include time.h in this check, as some systems (like convex)
369 # have timezone functions, etc.
370 #
371 have_timezone=no
372 AC_MSG_CHECKING([long timezone variable])
373 AC_TRY_COMPILE([#include <time.h>],
374         [extern long timezone;
375          timezone += 1;
376          exit (0);],
377         [have_timezone=yes
378          AC_MSG_RESULT(yes)],
379          AC_MSG_RESULT(no))
380
381 #
382 # On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
383 #
384 if test "$have_timezone" = no; then
385    AC_MSG_CHECKING([time_t timezone variable])
386    AC_TRY_COMPILE([#include <time.h>],
387         [extern time_t timezone;
388          timezone += 1;
389          exit (0);],
390         [have_timezone=yes
391          AC_MSG_RESULT(yes)],
392          AC_MSG_RESULT(no))
393 fi
394 ])dnl
395
396 ## AC_BZ_SET_COMPILER: Addition by Theodore Papadopoulo
397 ## Patch by Jim McKelvey: change sed -e 's/ /@/g' to sed -e 's/ /@/'
398 AC_DEFUN([AC_SG_SET_COMPILER],
399   [cxxwith=`echo $1 | sed -e 's/ /@/'`
400    case "$cxxwith" in
401      *:*@*)                 # Full initialization syntax
402        CXX=`echo "$cxxwith" | sed  -n -e 's/.*:\(.*\)@.*/\1/p'`
403        CXXFLAGS=`echo "$cxxwith" | sed  -n -e 's/.*:.*@\(.*\)/\1/p'`
404      ;;
405      *:*)                   # Simple initialization syntax
406        CXX=`echo "$cxxwith" | sed  -n -e 's/.*:\(.*\)/\1/p'`
407        CXXFLAGS=$3
408      ;;
409      *)                     # Default values
410        CXX=$2
411        CXXFLAGS=$3
412        CC="$2 --c"
413 ##       CFLAGS=
414      ;;
415    esac])
416
417 pushdef([AC_PROG_INSTALL],
418 [
419   dnl our own version, testing for a -p flag
420   popdef([AC_PROG_INSTALL])
421   dnl as AC_PROG_INSTALL works as it works we first have
422   dnl to save if the user didn't specify INSTALL, as the
423   dnl autoconf one overwrites INSTALL and we have no chance to find
424   dnl out afterwards
425   AC_PROG_INSTALL
426
427     # OK, user hasn't given any INSTALL, autoconf found one for us
428     # now we test, if it supports the -p flag
429     AC_MSG_CHECKING(for -p flag to install)
430     rm -f confinst.$$.* > /dev/null 2>&1
431     echo "Testtest" > confinst.$$.orig
432     ac_res=no
433     if ${INSTALL} -p confinst.$$.orig confinst.$$.new > /dev/null 2>&1 ; then
434       if test -f confinst.$$.new ; then
435         # OK, -p seems to do no harm to install
436         INSTALL="${INSTALL} -p"
437         ac_res=yes
438       fi
439     fi
440     rm -f confinst.$$.*
441     AC_MSG_RESULT($ac_res)
442   dnl the following tries to resolve some signs and wonders coming up
443   dnl with different autoconf/automake versions
444   dnl e.g.:
445   dnl  *automake 1.4 install-strip sets A_M_INSTALL_PROGRAM_FLAGS to -s
446   dnl   and has INSTALL_PROGRAM = @INSTALL_PROGRAM@ $(A_M_INSTALL_PROGRAM_FLAGS)
447   dnl   it header-vars.am, so there the actual INSTALL_PROGRAM gets the -s
448   dnl  *automake 1.4a (and above) use INSTALL_STRIP_FLAG and only has
449   dnl   INSTALL_PROGRAM = @INSTALL_PROGRAM@ there, but changes the
450   dnl   install-@DIR@PROGRAMS targets to explicitly use that flag
451   dnl  *autoconf 2.13 is dumb, and thinks it can use INSTALL_PROGRAM as
452   dnl   INSTALL_SCRIPT, which breaks with automake <= 1.4
453   dnl  *autoconf >2.13 (since 10.Apr 1999) has not that failure
454   dnl to clean up that mess we:
455   dnl  +set INSTALL_PROGRAM to use INSTALL_STRIP_FLAG
456   dnl   which cleans KDE's program with automake > 1.4;
457   dnl  +set INSTALL_SCRIPT to only use INSTALL, to clean up autoconf's problems
458   dnl   with automake<=1.4
459   dnl  note that dues to this sometimes two '-s' flags are used
460     INSTALL_PROGRAM='${INSTALL} $(INSTALL_STRIP_FLAG)'
461     INSTALL_SCRIPT='${INSTALL}'
462 ])dnl
463
464 # ===========================================================================
465 #             http://autoconf-archive.cryp.to/ax_boost_base.html
466 # ===========================================================================
467 #
468 # SYNOPSIS
469 #
470 #   AX_BOOST_BASE([MINIMUM-VERSION])
471 #
472 # DESCRIPTION
473 #
474 #   Test for the Boost C++ libraries of a particular version (or newer)
475 #
476 #   If no path to the installed boost library is given the macro searchs
477 #   under /usr, /usr/local, /opt and /opt/local and evaluates the
478 #   $BOOST_ROOT environment variable. Further documentation is available at
479 #   <http://randspringer.de/boost/index.html>.
480 #
481 #   This macro calls:
482 #
483 #     AC_SUBST(BOOST_CPPFLAGS) / AC_SUBST(BOOST_LDFLAGS)
484 #
485 #   And sets:
486 #
487 #     HAVE_BOOST
488 #
489 # LAST MODIFICATION
490 #
491 #   2008-04-12
492 #
493 # COPYLEFT
494 #
495 #   Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
496 #
497 #   Copying and distribution of this file, with or without modification, are
498 #   permitted in any medium without royalty provided the copyright notice
499 #   and this notice are preserved.
500
501 AC_DEFUN([AX_BOOST_BASE],
502 [
503 AC_ARG_WITH([boost],
504         AS_HELP_STRING([--with-boost@<:@=DIR@:>@], [use boost (default is yes) - it is possible to specify the root directory for boost (optional)]),
505         [
506     if test "$withval" = "no"; then
507                 want_boost="no"
508     elif test "$withval" = "yes"; then
509         want_boost="yes"
510         ac_boost_path=""
511     else
512             want_boost="yes"
513         ac_boost_path="$withval"
514         fi
515     ],
516     [want_boost="yes"])
517
518
519 AC_ARG_WITH([boost-libdir],
520         AS_HELP_STRING([--with-boost-libdir=LIB_DIR],
521         [Force given directory for boost libraries. Note that this will overwrite library path detection, so use this parameter only if default library detection fails and you know exactly where your boost libraries are located.]),
522         [
523         if test -d $withval
524         then
525                 ac_boost_lib_path="$withval"
526         else
527                 AC_MSG_ERROR(--with-boost-libdir expected directory name)
528         fi
529         ],
530         [ac_boost_lib_path=""]
531 )
532
533 if test "x$want_boost" = "xyes"; then
534         boost_lib_version_req=ifelse([$1], ,1.20.0,$1)
535         boost_lib_version_req_shorten=`expr $boost_lib_version_req : '\([[0-9]]*\.[[0-9]]*\)'`
536         boost_lib_version_req_major=`expr $boost_lib_version_req : '\([[0-9]]*\)'`
537         boost_lib_version_req_minor=`expr $boost_lib_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
538         boost_lib_version_req_sub_minor=`expr $boost_lib_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
539         if test "x$boost_lib_version_req_sub_minor" = "x" ; then
540                 boost_lib_version_req_sub_minor="0"
541         fi
542         WANT_BOOST_VERSION=`expr $boost_lib_version_req_major \* 100000 \+  $boost_lib_version_req_minor \* 100 \+ $boost_lib_version_req_sub_minor`
543         AC_MSG_CHECKING(for boostlib >= $boost_lib_version_req)
544         succeeded=no
545
546         dnl first we check the system location for boost libraries
547         dnl this location ist chosen if boost libraries are installed with the --layout=system option
548         dnl or if you install boost with RPM
549         if test "$ac_boost_path" != ""; then
550                 BOOST_LDFLAGS="-L$ac_boost_path/lib"
551                 BOOST_CPPFLAGS="-I$ac_boost_path/include"
552         else
553                 for ac_boost_path_tmp in /usr /usr/local /opt /opt/local ; do
554                         if test -d "$ac_boost_path_tmp/include/boost" && test -r "$ac_boost_path_tmp/include/boost"; then
555                                 BOOST_LDFLAGS="-L$ac_boost_path_tmp/lib"
556                                 BOOST_CPPFLAGS="-I$ac_boost_path_tmp/include"
557                                 break;
558                         fi
559                 done
560         fi
561
562     dnl overwrite ld flags if we have required special directory with
563     dnl --with-boost-libdir parameter
564     if test "$ac_boost_lib_path" != ""; then
565        BOOST_LDFLAGS="-L$ac_boost_lib_path"
566     fi
567
568         CPPFLAGS_SAVED="$CPPFLAGS"
569         CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
570         export CPPFLAGS
571
572         LDFLAGS_SAVED="$LDFLAGS"
573         LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
574         export LDFLAGS
575
576         AC_LANG_PUSH(C++)
577         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
578         @%:@include <boost/version.hpp>
579         ]], [[
580         #if BOOST_VERSION >= $WANT_BOOST_VERSION
581         // Everything is okay
582         #else
583         #  error Boost version is too old
584         #endif
585         ]])],[
586         AC_MSG_RESULT(yes)
587         succeeded=yes
588         found_system=yes
589         ],[
590         ])
591         AC_LANG_POP([C++])
592
593
594
595         dnl if we found no boost with system layout we search for boost libraries
596         dnl built and installed without the --layout=system option or for a staged(not installed) version
597         if test "x$succeeded" != "xyes"; then
598                 _version=0
599                 if test "$ac_boost_path" != ""; then
600                         if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
601                                 for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
602                                         _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
603                                         V_CHECK=`expr $_version_tmp \> $_version`
604                                         if test "$V_CHECK" = "1" ; then
605                                                 _version=$_version_tmp
606                                         fi
607                                         VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
608                                         BOOST_CPPFLAGS="-I$ac_boost_path/include/boost-$VERSION_UNDERSCORE"
609                                 done
610                         fi
611                 else
612                         for ac_boost_path in /usr /usr/local /opt /opt/local ; do
613                                 if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
614                                         for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
615                                                 _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
616                                                 V_CHECK=`expr $_version_tmp \> $_version`
617                                                 if test "$V_CHECK" = "1" ; then
618                                                         _version=$_version_tmp
619                                                         best_path=$ac_boost_path
620                                                 fi
621                                         done
622                                 fi
623                         done
624
625                         VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
626                         BOOST_CPPFLAGS="-I$best_path/include/boost-$VERSION_UNDERSCORE"
627             if test "$ac_boost_lib_path" = ""
628             then
629                BOOST_LDFLAGS="-L$best_path/lib"
630             fi
631
632                         if test "x$BOOST_ROOT" != "x"; then
633                                 if test -d "$BOOST_ROOT" && test -r "$BOOST_ROOT" && test -d "$BOOST_ROOT/stage/lib" && test -r "$BOOST_ROOT/stage/lib"; then
634                                         version_dir=`expr //$BOOST_ROOT : '.*/\(.*\)'`
635                                         stage_version=`echo $version_dir | sed 's/boost_//' | sed 's/_/./g'`
636                                         stage_version_shorten=`expr $stage_version : '\([[0-9]]*\.[[0-9]]*\)'`
637                                         V_CHECK=`expr $stage_version_shorten \>\= $_version`
638                     if test "$V_CHECK" = "1" -a "$ac_boost_lib_path" = "" ; then
639                                                 AC_MSG_NOTICE(We will use a staged boost library from $BOOST_ROOT)
640                                                 BOOST_CPPFLAGS="-I$BOOST_ROOT"
641                                                 BOOST_LDFLAGS="-L$BOOST_ROOT/stage/lib"
642                                         fi
643                                 fi
644                         fi
645                 fi
646
647                 CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
648                 export CPPFLAGS
649                 LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
650                 export LDFLAGS
651
652                 AC_LANG_PUSH(C++)
653                 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
654                 @%:@include <boost/version.hpp>
655                 ]], [[
656                 #if BOOST_VERSION >= $WANT_BOOST_VERSION
657                 // Everything is okay
658                 #else
659                 #  error Boost version is too old
660                 #endif
661                 ]])],[
662                 AC_MSG_RESULT(yes)
663                 succeeded=yes
664                 found_system=yes
665                 ],[
666                 ])
667                 AC_LANG_POP([C++])
668         fi
669
670         if test "$succeeded" != "yes" ; then
671                 if test "$_version" = "0" ; then
672                         AC_MSG_ERROR([[We could not detect the boost libraries (version $boost_lib_version_req_shorten or higher). If you have a staged boost library (still not installed) please specify \$BOOST_ROOT in your environment and do not give a PATH to --with-boost option.  If you are sure you have boost installed, then check your version number looking in <boost/version.hpp>. See http://randspringer.de/boost for more documentation.]])
673                 else
674                         AC_MSG_NOTICE([Your boost libraries seems to old (version $_version).])
675                 fi
676         else
677                 AC_SUBST(BOOST_CPPFLAGS)
678                 AC_SUBST(BOOST_LDFLAGS)
679                 AC_DEFINE(HAVE_BOOST,,[define if the Boost library is available])
680         fi
681
682         CPPFLAGS="$CPPFLAGS_SAVED"
683         LDFLAGS="$LDFLAGS_SAVED"
684 fi
685
686 ])