Dolphin - OS X 10.9 zlib issues

-- Could NOT find ZLIB (missing:  ZLIB_INCLUDE_DIR)
Shared zlib not found, falling back to the static library
-- Looking for sys/types.h
-- Looking for sys/types.h - not found
-- Looking for stdint.h
-- Looking for stdint.h - not found
-- Looking for stddef.h
-- Looking for stddef.h - not found
-- Check size of off64_t
-- Check size of off64_t - failed
-- Looking for fseeko
-- Looking for fseeko - not found
-- Looking for unistd.h
-- Looking for unistd.h - not found
CMake Error: File /Users/Paul/Desktop/dolphin/dolphin-emu/Externals/zlib/zlib.pc.cmakein does not exist.
CMake Error at Externals/zlib/CMakeLists.txt:82 (configure_file):
  configure_file Problem configuring file


CMake Error: File /Users/Paul/Desktop/dolphin/dolphin-emu/Externals/zlib/zconf.h.cmakein does not exist.
CMake Error at Externals/zlib/CMakeLists.txt:84 (configure_file):
  configure_file Problem configuring file