Description:
------------
The currenty Ubuntu development release (natty) has updated the toolchain to gcc 
4.5 and uses DSO libs. Because of this, there are stricter restrictions on using 
symbols without directly linking to the library containing them.

This patch fixes these issues, and compiles correctly on natty and the current 
stable release (Ubuntu 10.10).

Test script:
---------------
./configure --with-ldap --with-openssl

Fails because sasl2 is not linked directly. If that is fixed,

make

Fails because libssl does not contain X509_new (libcrypto does).

Expected result:
----------------
configure and build should complete

Actual result:
--------------
checking for sasl_version in -lldap... no
configure: error: LDAP SASL check failed. Please check config.log for more 
information.
make: *** [configure-apache2-stamp] Error 1
dpkg-buildpackage: error: debian/rules build gave error exit status 2

ext/zip/lib/.libs/zip_dirent.o: In function `_zip_dirent_read':
/home/clint/pkg/php5/bzr/build-area/php5-5.3.3/ext/zip/lib/zip_dirent.c:478: 
warning: memset used with constant zero length parameter; this could be due to 
transposed parameters
/home/clint/pkg/php5/bzr/build-area/php5-5.3.3/ext/zip/lib/zip_dirent.c:478: 
warning: memset used with constant zero length parameter; this could be due to 
transposed parameters
/usr/bin/ld.bfd.real: ext/openssl/.libs/openssl.o: undefined reference to symbol 
'X509_free@@OPENSSL_0.9.8'
/usr/bin/ld.bfd.real: note: 'X509_free@@OPENSSL_0.9.8' is defined in DSO 
/lib64/libcrypto.so.0.9.8 so try adding it to the linker command line
/lib64/libcrypto.so.0.9.8: could not read symbols: Invalid operation
collect2: ld returned 1 exit status