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From "Vitek Cvachoucek" <vitekcvachou...@gmail.com>
Subject Re: mod_jk in Cygwin
Date Tue, 05 Feb 2008 17:38:40 GMT
Hello Rainer

1. /usr/sbin/apxs -q LDFLAGS outputs empty string
2. no there are only *.la and *.a in my /usr/lib (but there some *.so
deeper - e.g. ruby specific under /usr/lib/ruby)
3. About the linking I am not sure at all. The generated file is
rather large (682k)  however the generated *.la contains dependencies
dependency_libs=' /usr/lib/libhttpd2core.la -L/usr/lib
/usr/lib/libaprutil-1.la /usr/lib/libgdbm.la /usr/lib/libdb-4.2.la
/usr/lib/libexpat.la /usr/lib/libiconv.la /usr/lib/libapr-1.la
-lcrypt'

I am sorry I have no ldd available  neither I am sure how to install
it, my experience with GNU build tools is extremely limited .
The main thing for me is that the builded library actually works.

Regards
Vitek



On Feb 5, 2008 6:10 PM, Rainer Jung <rainer.jung@kippdata.de> wrote:
> Hi Vitek,
>
> so it's good, that it works for you. To get a more complete picture of
> the situation (especially for our documentation), would you mind telling us:
>
> - what's the output of /usr/sbin/apxs -q LDFLAGS ?
> - are there also shared libraries in /usr/lib, like libapr-1.so ?
> - do libapr-1 and libhttpd2core really get linked in statically, or are
> the libtool "la" files used to link them in dynamically (if you get a
> mod_jk.so out of the process, what does ldd mod_jk.so give for
> dependencies).
>
> I don't know Cygwin well enough, but I would be surprised if they
> compiled everything statically (but hey, sometimes there *is* a surprise
> ...).
>
> Regards,
>
> Rainer
>
>
>
> Vitek Cvachoucek wrote:
> > Ok so I have solved it,
> >
> > The cookbook to compile mod_jk on Cygwin
> >
> >   * Download source distribution (no Cygwin binaries available)
> >   * '''http://apache.mirror.superhosting.cz/tomcat/tomcat-connectors/jk/source/'''
> >   * '''tomcat-connectors-1.2.26-src.tar.gz'''
> >
> >    wget http://apache.mirror.superhosting.cz/tomcat/tomcat-connectors/jk/source/tomcat-connectors-1.2.26-src.tar.gz
> >    gzip -d tomcat-connectors-1.2.26-src.tar.gz
> >    tar -xf tomcat-connectors-1.2.26-src.tar
> >    cd tomcat-connectors-1.2.26-src/native
> >    ./configure --with-apxs=/usr/sbin/apxs2
> >
> >   * Hack Makefile building Apache 2.0 module
> >     * '''apache-2.0/Makefile'''
> >     * target '''mod_jk.la'''
> >     * Added statically linked libraries for '''apache2-devel, apr1,
> > aprutil1'''
> >
> > mod_jk.la: mod_jk.lo $(APACHE_OBJECTS)
> >       $(LIBTOOL) --mode=link ${COMPILE} -no-undefined `${APXS} -q LDFLAGS`
> > -o $@ -module -rpath ${libexecdir} -avoid-version mod_jk.lo
> > $(APACHE_OBJECTS) /usr/lib/libapr-1.la /usr/lib/libhttpd2core.la
> > /usr/lib/libaprutil-1.la
> >
> >   * Now the '''make''' succeedes in creating '''mod_jk.so'''
> >
> >
> > On Feb 5, 2008 10:01 AM, Vitek Cvachoucek <vitekcvachoucek@gmail.com> wrote:
> >> I have now found a way how to get more information relating failing linkage:
> >>
> >> I have modified apache2.0/Makefile passing -no-undefined flag to the linker
> >> {{{
> >> mod_jk.la: mod_jk.lo $(APACHE_OBJECTS)
> >>         $(LIBTOOL) --mode=link ${COMPILE} -no-undefined `${APXS} -q LDFLAGS`
> >> -o $@ -module -shared -rpath ${libexecdir} -avoid-version
> >>  mod_jk.lo $(APACHE_OBJECTS)
> >> }}}
> >>
> >> Now I see it complains about APR libraries:
> >>
> >> {{{
> >> /home/developer/tomcat-connectors-1.2.26-src/native/apache-2.0/mod_jk.c:2147:
> >> undefined reference to `_apr_table_get'
> >> /home/developer/tomcat-connectors-1.2.26-src/native/apache-2.0/mod_jk.c:2162:
> >> undefined reference to `_apr_table_get'
> >> /home/developer/tomcat-connectors-1.2.26-src/native/apache-2.0/mod_jk.c:2165:
> >> undefined reference to `_ap_setup_client_block'
> >> /home/developer/tomcat-connectors-1.2.26-src/native/apache-2.0/mod_jk.c:2269:
> >> undefined reference to `_apr_table_setn'
> >> /home/developer/tomcat-connectors-1.2.26-src/native/apache-2.0/mod_jk.c:2272:
> >> undefined reference to `_apr_time_now'
> >> /home/developer/tomcat-connectors-1.2.26-src/native/apache-2.0/mod_jk.c:637:
> >> undefined reference to `_ap_get_remote_host'
> >> /home/developer/tomcat-connectors-1.2.26-src/native/apache-2.0/mod_jk.c:660:
> >> undefined reference to `_ap_get_server_name'
> >> /home/developer/tomcat-connectors-1.2.26-src/native/apache-2.0/mod_jk.c:668:
> >> undefined reference to `_ap_get_server_port'
> >> /home/developer/tomcat-connectors-1.2.26-src/native/apache-2.0/mod_jk.c:671:
> >> undefined reference to `_ap_get_server_description'
> >> ....
> >> }}}
> >>
> >>
> >> However I do have apr1 and aprutil1 installed , perhaps it is again
> >> something as weird as with WSGI compilation that required to hack
> >> libtool as it was unable to recognize cygwin shared libraries ....
> >>
> >> Any ideas?
> >>
> >> Vitek
> >>
> >>
> >> On Feb 5, 2008 7:51 AM, Vitek Cvachoucek <vitekcvachoucek@gmail.com> wrote:
> >>> Thank you for your help,
> >>>
> >>> I am already using configure --with-apxs=/usr/sbin/apxs2
> >>>
> >>> The whole offending section is:
> >>>
> >>> /usr/share/apr-1-build/libtool --mode=link gcc -I/usr/include/apache2
> >>> -g -O2 -DUSE_APACHE_MD5 -I ../common  -I c:\java\jdk1.5.0/include -I
> >>> c:\java\jdk1.5.0/include/cygwin -DCYGWIN -O2  -DHAVE_APR
> >>> -I/usr/include/apr-1 -I/usr/include/apr-1 -g -O2  -DCYGWIN
> >>> `/usr/sbin/apxs2 -q LDFLAGS` -o mod_jk.la -module -rpath
> >>> /usr/lib/apache2 -avoid-version mod_jk.lo ../common/jk_ajp12_worker.lo
> >>> ../common/jk_connect.lo ../common/jk_msg_buff.lo ../common/jk_util.lo
> >>> ../common/jk_ajp13.lo ../common/jk_pool.lo ../common/jk_worker.lo
> >>> ../common/jk_ajp13_worker.lo ../common/jk_lb_worker.lo
> >>> ../common/jk_sockbuf.lo ../common/jk_map.lo
> >>> ../common/jk_uri_worker_map.lo ../common/jk_ajp14.lo
> >>> ../common/jk_ajp14_worker.lo ../common/jk_md5.lo
> >>>  ../common/jk_shm.lo ../common/jk_ajp_common.lo
> >>> ../common/jk_context.lo ../common/jk_url.lo ../common/jk_status.lo
> >>> libtool: link: warning: undefined symbols not allowed in
> >>> i686-pc-cygwin shared libraries
> >>>
> >>> I managed to get rid of the libtool's --silent flag however no more
> >>> information provided. Is there somebody able to pinpoint what is wrong
> >>> with it, e.g. specific libraries it is missing (like
> >>> c:\java\jdk1.5.0\include\cygwin which is of course wrong but perhaps
> >>> harmless), guess the
> >>> the build process can be confused by OS name (as Cygwin is no OS at the
end).
> >>>
> >>> Again any help would be much appreciated.
> >>>
> >>> Regards
> >>> Vitek
> >>>
> >>>
> >>> On Feb 5, 2008 1:00 AM, Rainer Jung <rainer.jung@kippdata.de> wrote:
> >>>> Unfortunately no Cygwin experience yet. If you compiled your httpd under
> >>>> Cygwin, I expect you have a /my/path/to/httpd/bin/apxs file?
> >>>>
> >>>> What happens if you try
> >>>>
> >>>> configure --with-apxs=/my/path/to/httpd/bin/apxs
> >>>>
> >>>> and then make?
> >>>>
> >>>> Do you get the error you mentioned? Any indication, which symbols are
> >>>> meant there ("undefined")?
> >>>>
> >>>> Regards,
> >>>>
> >>>> Rainer
> >>>>
> >>>>
> >>>> Vitek Cvachoucek schrieb:
> >>>>
> >>>>> Hello gentleman,
> >>>>>
> >>>>> did anybody of you ever attempted to have Apache 2 on Cygwin equipped
> >>>>> with mod_jk?
> >>>>>
> >>>>> The main documentation page counts Cygwin as a supported platform:
> >>>>>
> >>>>> http://tomcat.apache.org/connectors-doc/webserver_howto/apache.html
> >>>>>
> >>>>> However I have never found binary release for Cygwin. The Win32
builds
> >>>>> do not work with Cygwin. Perhaps it would be possible to build from
> >>>>> source on cygwin however all my attempts ended with:
> >>>>>
> >>>>> libtool: link: warning: undefined symbols not allowed in
> >>>>> i686-pc-cygwin shared libraries
> >>>>>
> >>>>> We a complex existing Cygwin-based system (Apache, WSGI, Subversion,
> >>>>> Trac, Ssh ...) so moving out of cygwin is not an option (while
> >>>>> mod_proxy may be an option). Does anybody have any experience running
> >>>>> mod_jk on Cygwin? Any help would be greatly appreciated.
> >>>>>
> >>>>> Vitek
>
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