this change in fb.h


#define FB_CKMAG(_ptr,  _str)  {        \
        if( !(_ptr) )  { \
                fb_log("ERROR: null %s ptr, file %s, line %d\n", \
                        _str, __FILE__, __LINE__ ); \
                abort(); \
        } \
        return (0); \
        }
//#define FB_CKMAG(_ptr, _magic, _str)  { \



this change in fbio.h
#define FB_CK_FBIO(_p)         FB_CKMAG(_p, "FBIO" )