wsrep-patch related build failures

MGC does not compile on Windows and Solaris platforms.

On Solaris:
In file included from /export/home/buildbot/maria-slave/solaris10-x86/build/mariadb-5.5.34/wsrep/wsrep_api.h:21,
from /export/home/buildbot/maria-slave/solaris10-x86/build/mariadb-5.5.34/wsrep/wsrep_uuid.c:23:
/usr/include/stdbool.h:42:2: #error "Use of <stdbool.h> is valid only in a c99 compilation environment."
...

On Windows:
7>c:\buildbot\win32-debug2\build\wsrep\wsrep_api.h(21): fatal error C1083: Cannot open include file: 'stdbool.h': No such file or directory

7>C:\buildbot\win32-debug2\build\wsrep\wsrep_loader.c(19): fatal error C1083: Cannot open include file: 'dlfcn.h': No such file or directory