Cannot build mod_cluster-1.2.0 against httpd-2.4.6

[marcodanti]

Hi everybody,

I just joined the community because of a build problem I am unable to solve. I haven't found any refernce to similar problems in the community forums, so I guess/hope it may just be some misunderstanding on my part.

I have successfully built httpd-2.4.6 from sources on my system (SLES 11-SP1 x86_64), using the following configuration:

./configure  --prefix=/opt/apache-2.4.6 \

             --with-mpm=worker \

             --with-included-apr \

             --enable-mpms-shared=all \

             --enable-mods-shared=most \

             --with-expat=builtin \

             --enable-ssl \

             --enable-proxy \

             --disable-proxy-balancer \

             --disable-slotmem-shm \

             --disable-heartmonitor \

             --disable-heartbeat \

             --disable-lbmethod-heartbeat \

             --disable-lbmethod-heartmonitor

Now I wanted to build mod_cluster-1.2.0.Final from sources as well.

The same operation worked perfectly well on a different machine where I have httpd-2.2.24 (where the .configure is just the same except the last 5 lines) and mod_cluster-1.2.0.Final.

The problem I run into when trying to build mod_cluster-1.2.0.Final against httpd-2.4.6 is the following:

> cd mod_cluster-1.2.0.Final-src-ssl/

> cd srclib/mod_cluster/native/mod_manager

> ./buildconf

> ./configure --with-apxs=/opt/apache-2.4.6/bin/apxs

checking for Apache httpd installation... APXS is /opt/apache-2.4.6/bin/apxs

apxs_support is true

configure: creating ./config.status

config.status: creating Makefile

> make

/opt/apache-2.4.6/build/libtool --silent --mode=compile gcc -std=gnu99  -g -O2 -pthread      -DLINUX -D_REENTRANT -D_GNU_SOURCE     -I/opt/apache-2.4.6/include -I. -I/home/marco/src/httpd-2.4.6/srclib/apr/include -I/home/marco/src/httpd-2.4.6/srclib/apr-util/include -I/home/marco/src/httpd-2.4.6/srclib/apr-util/xml/expat/lib -I/usr/local/include -I../include -prefer-pic -c mod_manager.c && touch mod_manager.slo

In file included from mod_manager.c:48:

../include/node.h:155: error: expected declaration specifiers or '...' before 'slotmem_storage_method'

../include/node.h:164: error: expected declaration specifiers or '...' before 'slotmem_storage_method'

In file included from mod_manager.c:49:

../include/host.h:116: error: expected declaration specifiers or '...' before 'slotmem_storage_method'

../include/host.h:125: error: expected declaration specifiers or '...' before 'slotmem_storage_method'

... more errors removed ...

make: *** [mod_manager.slo] Error 1

>

First problem i see: two sources define same preprocessor guard (this causes the error reported above)

> grep SLOTMEM_H ../include/*

../include/slotmem.h:#ifndef SLOTMEM_H

../include/slotmem.h:#define SLOTMEM_H

../include/slotmem.h:#endif /*SLOTMEM_H*/

> grep SLOTMEM_H /opt/apache-2.4.6/include/*

/opt/apache-2.4.6/include/ap_slotmem.h:#ifndef SLOTMEM_H

/opt/apache-2.4.6/include/ap_slotmem.h:#define SLOTMEM_H

Second problem: redefinition of symbols

/opt/apache-2.4.6/include/ap_slotmem.h defines

     typedef apr_status_t ap_slotmem_callback_fn_t(void* mem, void *data, apr_pool_t *pool);

but in mod_cluster-1.2.0.Final-src-ssl/srclib/mod_cluster/native/include/slotmem.h the same symbol is redefined differently

    typedef apr_status_t ap_slotmem_callback_fn_t(void* mem, void **data, int ident, apr_pool_t *pool);

and possibly other similar problems.

So this makes it impossible for me to build mod_cluster-1.2 against httpd-2.4. My understanding is that there are conflicts between mod_cluster and APR, but I am not sure how to go about it.

Has anyone been able to build mod_cluster-1.2.0 against httpd-2.4.6 ?

Thanks,

Marco

[jfclere]

See MODCLUSTER-304. You need at least 1.2.1.Final.

[marcodanti]

Thanks a lot Jean, that did it.

Just out of curiosity: how come that the latest version accessible from http://www.jboss.org/mod_cluster/downloads/latest.html still points to 1.2.0.Final? 

I find it a bit confusing since we actually already have 1.2.1.Final and 1.2.2.Final available, but only via svn.

Marco