Increase VCOS_DEFAULT_STACK_SIZE
Use the right enum values.

Found with the help of gcc 4.8
Increase thread stack size
Remove unused variable in vchiq_signal_test
Use the assignment operator instead of comparison
Include libgen.h for basename and correct an fprintf format string
Include libgen.h for basename
Return a value in vc_tv_hdmi_get_supported_modes
Appease gcc 4.8 'may be used uninitialized in this function' warnings
Avoid gcc 4.8 'dereferencing type-punned pointer will break strict-aliasing
rules' warning
Fix gcc warnings.
Fix unused static function warning by adding #if 0 / #endif
Fix gcc warnings