package w32api: patches
package libgcrypt: fix accidental winsock.h inclusion
package icu4c: _stat not stat
package postgresql: don't use stat reimplementation

Assume that we don't need pgwin32_safestat in client code.
The redefinition of struct stat and stat() causes problems
because it assumes the real stat() is a function. In fact,
it's a macro in w32api.
package fontconfig: later winapi to provide MemoryBarrier
package dbus: compatibility fixes
package qtbase: include windows.h in places
package qtbase: later winapi to provide MemoryBarrier
package vmime: define WIN32 explicitly