assert(linestr_sv); assert(rsfp)
STATIC void S_forbid_setid(pTHX_ const char flag, const bool suidscript);
-STATIC void S_incpush(pTHX_ const char *dir, bool addsubdirs, bool addoldvers, bool usesep, bool canrelocate, bool unshift);
+STATIC void S_incpush(pTHX_ const char *dir, U32 flags);
STATIC void S_init_interp(pTHX);
STATIC void S_init_ids(pTHX);
STATIC void S_init_main_stash(pTHX);