Fix sss_client breakage. Adding missing dependencies for linker. Missing dependency was introduced by commit 22d381367c27910fe82f476a76b9f4ede555e35a in changed file src/sss_client/nss_mc_common.c All function declaration for io.c was moved from util.h to separate file io.h, https://fedorahosted.org/sssd/ticket/1838

Fix compilation error in Python murmurhash bindings The compilation produced an error due to missing declaration of uint32_t and a couple of warnings caused by different prototypes of argument parsing functions in older Python releases.

util: add murmurhash3 hash function