- Removed references to deleted files
- If we link staticly, check for static zlib
  - This should fix the problem with 'no -lz found' link error
- Fixed build failure on window (Patch from Wlad)
- Fixed build problem with federatedx when using -Werror

BUILD/Makefile.am:
  Remove removed file
config/ac-macros/zlib.m4:
  If we compile with --all-static, test that we have a static libz
libmysqld/CMakeLists.txt:
  Fix for build error on windows
mysql-test/suite/pbxt/r/key_cache.result:
  Updated result
mysql-test/suite/pbxt/t/key_cache.test:
  Fixed not updated test case
sql/CMakeLists.txt:
  Fix for build error on windows
storage/federatedx/Makefile.am:
  Don't use CFLAGS to compile C++ programs
storage/pbxt/src/lock_xt.cc:
  Fixed compiler warning about using uninitialized b2
storage/xtradb/buf/buf0buf.c:
  Fixed wrong printf
storage/xtradb/srv/srv0srv.c:
  Fixed assignment of different width and test with different sign/unsigned