Sablotron Installation

radhak

Hi,

I am faced with a problem in Apache and I need any help I can get =
regarding this. Here is the problem:

We are running a Red Hat Linux 6.2 machine. We had Apache, PHP and =
mysql configured correctly and working. We wanted to add XSLT support =
(using the sablotron code) in PHP. Therefore, we downloaded the =
expat-0.95.1 and sablotron-0.52 and installed them as instructed from =
the gingerall website. After this we configured PHP with apxs and =
sablotron support. The code compiled fine and created the libphp4.so =
file in the /etc/httpd/modules directory.

Now, after I configured the httpd.conf file to load this module, it =
gives me an error on startup:
Starting httpd: syntax error on line 256 of /etc/httpd/conf/httpd.conf:
Cannot load /etc/htppd/modules/libphp4.so into server: libexpat.so.0: =
cannot open shared object file: no such file or directory
[FAILED]

From this I could interpret that apache is not able to locate the =
libexpat.so file. This file is present in the /usr/local/lib (when =
expat was compiled, it placed this file here).

Could you please tell me what do we need to do in order for apache to =
start. I suspect that we have not configured PHP correctly OR the expat =
software correctly OR not copied certain files to the right places and =
hence this problem. I am a newbie to UNIX administration and would =
really appreciate help. If you cannot help me, please point me in the =
right direction on the Internet so that I could find a solution.

Thank you very much in anticipation of your help.

Regards.

=====
Radhak
Noetic Solutions

Anon

I've run into this problem with a few PHP external modules, currently I've got it with the cURL library. Anyway most of these problems are solved by creating a symbolic link to the .so that Apache can't find in the /usr/lib directory. This has solved this problem for me on all but this current one I'm working on.

The Unix command that you want to run is:
ln -s /usr/local/lib/libexpat.so.0 /usr/lib/libexpat.so.0

That will create the symbolic link for you in /usr/lib and now Apache (or more specifically libphp4.so) will be able to find the module and start up.

PHP has some problems with the directories that are specified in the configure script. I've run into this same problem with quite a few libraries. Even when you tell PHP where to find them it still can't. Ohh well, this should work for you, I have both those modules installed and running.