Description:
------------
Having compiled PHP without XML support on my system several times without problem, I decided to try and include XML support.

When I run the following command:

./configure --with-apxs2=/usr/local/apache2/bin/apxs --with-mysql --without-pear --enable-libxml --with-gd --with-png-dir=/usr/lib --with-jpeg-dir=/usr/lib --with-zlib-dir=/usr --enable-mbstring=all

It fails with:

checking whether libxml build works... no
configure: error: build test failed.  Please check the config.log for details.

The "config.log" shows:

configure:19959: checking whether libxml build works
configure:19986: gcc -o conftest -g -O2   -Wl,-rpath,/usr/local/lib -L/usr/local/lib conftest.c 
          
         -lresolv -lm -ldl -lnsl  -lxml2 -lz -lm 1>&5
configure: failed program was:
#line 19975 "configure"
#include "confdefs.h"

    
    char xmlInitParser();
    int main() {
      xmlInitParser();
      return 0;
    }

My system has libxml2 version 2.6.23, which was compiled and installed from source not using an RPM.

I have tried a various "--with-libxml-dir" parameters including "--with-libxml-dir=/usr/local/lib" (libxml2 v2.6.23 is in "/usr/local/lib" and v 2.4.10 in "/usr/lib").

Any help you can give will be gratefully received.

Expected result:
----------------
I expect ./configure to complete successfully.

Actual result:
--------------
./configure fails with:

checking whether libxml build works... no
configure: error: build test failed.  Please check the config.log for details.