Обсуждение: How to apply patches

*Dave Page wrote in *pgsql-patches <http://archives.postgresql.org/pgsql-patches>*:*
>>The attached patch updates the thread test program to run stand-alone on
 >>Windows. The test itself is bypassed in configure as discussed, and
 >>libpq has been updated appropriately to allow it to build in thread-safe
 >>mode.
 >>
 >>To apply, apply the patch as normal, then rename
 >>src/interface/libpq/pthread.h.win32 to
 >>src/interface/libpq/pthread-win32.h. Finally, run autoconf to regenerate
 >>configure.

1. How can I apply patches
2. Where can i find autoconf, and what is it ?

I'm currently working on a Windows XP PC.

Regards

Pit