php-5.2.12, php-5.3.0 & php-5.3.1 fail to build on latest Ubuntu

The same problem appears with all stable versions of php
and Ubuntu Karmic with gcc-4.4.1 which produce:

root@hive1:# ./configure
root@hive1:# make
/bin/sh /home/dfavor/work/php-5.3.1/libtool --silent --preserve-dup-deps --mode=compile gcc 
-Iext/date/lib -Iext/date/ -I/home/dfavor/work/php-5.3.1/ext/date/ -DPHP_ATOM_INC 
-I/home/dfavor/work/php-5.3.1/include -I/home/dfavor/work/php-5.3.1/main 
-I/home/dfavor/work/php-5.3.1 -I/home/dfavor/work/php-5.3.1/ext/date/lib 
-I/home/dfavor/work/php-5.3.1/ext/ereg/regex -I/usr/include/libxml2 
-I/home/dfavor/work/php-5.3.1/ext/sqlite3/libsqlite -I/home/dfavor/work/php-5.3.1/TSRM 
-I/home/dfavor/work/php-5.3.1/Zend    -I/usr/include -g -O2 -fvisibility=hidden  -c 
/home/dfavor/work/php-5.3.1/ext/date/php_date.c -o ext/date/php_date.lo
In file included from /usr/include/stdlib.h:33,
                  from /home/dfavor/work/php-5.3.1/include/../main/php_config.h:2845,
                  from /home/dfavor/work/php-5.3.1/Zend/zend_config.h:1,
                  from /home/dfavor/work/php-5.3.1/Zend/zend.h:51,
                  from /home/dfavor/work/php-5.3.1/main/php.h:34,
                  from /home/dfavor/work/php-5.3.1/ext/date/php_date.c:21:
/usr/lib/gcc/i486-linux-gnu/4.4.1/include/stddef.h:211: error: duplicate 'unsigned'
In file included from /usr/include/stdlib.h:320,
                  from /home/dfavor/work/php-5.3.1/include/../main/php_config.h:2845,
                  from /home/dfavor/work/php-5.3.1/Zend/zend_config.h:1,
                  from /home/dfavor/work/php-5.3.1/Zend/zend.h:51,
                  from /home/dfavor/work/php-5.3.1/main/php.h:34,
                  from /home/dfavor/work/php-5.3.1/ext/date/php_date.c:21:
/usr/include/sys/types.h:151: error: duplicate 'unsigned'
/usr/include/sys/types.h:153: error: duplicate 'unsigned'
/usr/include/sys/types.h:153: error: two or more data types in declaration specifiers
make: *** [ext/date/php_date.lo] Error 1

root@hive1:# uname -a
Linux hive1.coolsurf.com 2.6.31-10-generic #35-Ubuntu SMP Tue Sep 22 17:33:42 UTC 2009 i686 GNU/Linux

root@hive1:# gcc --version
gcc (Ubuntu 4.4.1-4ubuntu8) 4.4.1

root@hive1:# libtool --version
ltmain.sh (GNU libtool) 2.2.6

There are many ways of hacking this to work and I'd prefer someone in the know tell
me the correct way to fix this.

Thanks.

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