g/^rootgen/ s/Dirtab\*, int/Dirtab *dt, int i/
g/^rootclose/ s/(Chan\*)/(Chan *c)/
,s/^#endif asdf/#endif/
g/^rootwrite/ s/(Chan\*, void\*, long, vlong)/(Chan *c, void *v, long l, vlong vl)/
/^static uchar \*bootdata/ s/ =.*/;/