diff --git a/util/readtags.c b/util/readtags.c
index b81fd1fae..53e22aea4 100644
--- a/util/readtags.c
+++ b/util/readtags.c
@@ -128,101 +128,101 @@ static char fieldfixbuf[BUFSZ];
 #define NHTYPE_COMPLEX   2
 
 struct nhdatatypes_t readtagstypes[] = {
-    {NHTYPE_SIMPLE, "any", sizeof(anything)},
-    {NHTYPE_SIMPLE, "genericptr_t", sizeof(genericptr_t)},
-    {NHTYPE_SIMPLE, "aligntyp", sizeof(aligntyp)},
-    {NHTYPE_SIMPLE, "Bitfield", sizeof(uint8_t)},
-    {NHTYPE_SIMPLE, "boolean", sizeof(boolean)},
-    {NHTYPE_SIMPLE, "char", sizeof(char)},
-    {NHTYPE_SIMPLE, "int",  sizeof(int)},
-    {NHTYPE_SIMPLE, "long", sizeof(long)},
-    {NHTYPE_SIMPLE, "schar", sizeof(schar)},
-    {NHTYPE_SIMPLE, "short", sizeof(short)},
-    {NHTYPE_SIMPLE, "size_t", sizeof(size_t)},
-    {NHTYPE_SIMPLE, "string", 1},
-    {NHTYPE_SIMPLE, "time_t",  sizeof(time_t)},
-    {NHTYPE_SIMPLE, "uchar",  sizeof(uchar)},
-    {NHTYPE_SIMPLE, "unsigned char", sizeof(unsigned char)},
-    {NHTYPE_SIMPLE, "unsigned int", sizeof(unsigned int)},
-    {NHTYPE_SIMPLE, "unsigned long", sizeof(unsigned long)},
-    {NHTYPE_SIMPLE, "unsigned short",  sizeof(unsigned short)},
-    {NHTYPE_SIMPLE, "unsigned", sizeof(unsigned)},
-    {NHTYPE_SIMPLE, "xchar",  sizeof(xchar)},
-    {NHTYPE_COMPLEX,"align", sizeof(struct align)},
-/*    {NHTYPE_COMPLEX,"attack", sizeof(struct attack)}, */ /* permonst affil */
-    {NHTYPE_COMPLEX,"attribs", sizeof(struct attribs)},
-    {NHTYPE_COMPLEX,"bill_x", sizeof(struct bill_x)},
-    {NHTYPE_COMPLEX,"book_info", sizeof(struct book_info)},
-    {NHTYPE_COMPLEX,"branch", sizeof(struct branch)},
-    {NHTYPE_COMPLEX,"bubble", sizeof(struct bubble)},
-    {NHTYPE_COMPLEX,"cemetery", sizeof(struct cemetery)},
-/*    {NHTYPE_COMPLEX,"container", sizeof(struct container)}, */
-    {NHTYPE_COMPLEX,"context_info", sizeof(struct context_info)},
-    {NHTYPE_COMPLEX,"d_flags", sizeof(struct d_flags)},
-    {NHTYPE_COMPLEX,"d_level", sizeof(struct d_level)},
-    {NHTYPE_COMPLEX,"damage", sizeof(struct damage)},
-    {NHTYPE_COMPLEX,"dest_area", sizeof(struct dest_area)},
-    {NHTYPE_COMPLEX,"dgn_topology", sizeof(struct dgn_topology)},
-    {NHTYPE_COMPLEX,"dig_info", sizeof(struct dig_info)},
-    {NHTYPE_COMPLEX,"dungeon", sizeof(struct dungeon)},
-    {NHTYPE_COMPLEX,"edog", sizeof(struct edog)},
-    {NHTYPE_COMPLEX,"egd", sizeof(struct egd)},
-    {NHTYPE_COMPLEX,"emin", sizeof(struct emin)},
-    {NHTYPE_COMPLEX,"engr", sizeof(struct engr)},
-    {NHTYPE_COMPLEX,"epri", sizeof(struct epri)},
-    {NHTYPE_COMPLEX,"eshk", sizeof(struct eshk)},
-    {NHTYPE_COMPLEX,"fakecorridor", sizeof(struct fakecorridor)},
-    {NHTYPE_COMPLEX,"fe", sizeof(struct fe)},
-    {NHTYPE_COMPLEX,"flag", sizeof(struct flag)},
-    {NHTYPE_COMPLEX,"fruit", sizeof(struct fruit)},
-    {NHTYPE_COMPLEX,"kinfo", sizeof(struct kinfo)},
-    {NHTYPE_COMPLEX,"levelflags", sizeof(struct levelflags)},
-    {NHTYPE_COMPLEX,"linfo", sizeof(struct linfo)},
-    {NHTYPE_COMPLEX,"ls_t", sizeof(struct ls_t)},
-    {NHTYPE_COMPLEX,"mapseen_feat", sizeof(struct mapseen_feat)},
-    {NHTYPE_COMPLEX,"mapseen_flags", sizeof(struct mapseen_flags)},
-    {NHTYPE_COMPLEX,"mapseen_rooms", sizeof(struct mapseen_rooms)},
-    {NHTYPE_COMPLEX,"mapseen", sizeof(struct mapseen)},
-    {NHTYPE_COMPLEX,"mextra", sizeof(struct mextra)},
-    {NHTYPE_COMPLEX,"mkroom", sizeof(struct mkroom)},
-    {NHTYPE_COMPLEX,"monst", sizeof(struct monst)},
-    {NHTYPE_COMPLEX,"mvitals", sizeof(struct mvitals)},
-    {NHTYPE_COMPLEX,"nhcoord", sizeof(struct nhcoord)},
-    {NHTYPE_COMPLEX,"nhrect", sizeof(struct nhrect)},
-    {NHTYPE_COMPLEX,"novel_tracking", sizeof(struct novel_tracking)},
-    {NHTYPE_COMPLEX,"obj", sizeof(struct obj)},
-    {NHTYPE_COMPLEX,"objclass", sizeof(struct objclass)},
-    {NHTYPE_COMPLEX,"obj_split", sizeof(struct obj_split)},
-    {NHTYPE_COMPLEX,"oextra", sizeof(struct oextra)},
-/*    {NHTYPE_COMPLEX,"permonst", sizeof(struct permonst)}, */
-    {NHTYPE_COMPLEX,"polearm_info", sizeof(struct polearm_info)},
-    {NHTYPE_COMPLEX,"prop", sizeof(struct prop)},
-    {NHTYPE_COMPLEX,"q_score", sizeof(struct q_score)},
-    {NHTYPE_COMPLEX,"rm", sizeof(struct rm)},
-    {NHTYPE_COMPLEX,"s_level", sizeof(struct s_level)},
-    {NHTYPE_COMPLEX,"savefile_info", sizeof(struct savefile_info)},
-    {NHTYPE_COMPLEX,"skills", sizeof(struct skills)},
-    {NHTYPE_COMPLEX,"spell", sizeof(struct spell)},
-    {NHTYPE_COMPLEX,"stairway", sizeof(struct stairway)},
+    {NHTYPE_SIMPLE, (char *) "any", sizeof(anything)},
+    {NHTYPE_SIMPLE, (char *) "genericptr_t", sizeof(genericptr_t)},
+    {NHTYPE_SIMPLE, (char *) "aligntyp", sizeof(aligntyp)},
+    {NHTYPE_SIMPLE, (char *) "Bitfield", sizeof(uint8_t)},
+    {NHTYPE_SIMPLE, (char *) "boolean", sizeof(boolean)},
+    {NHTYPE_SIMPLE, (char *) "char", sizeof(char)},
+    {NHTYPE_SIMPLE, (char *) "int",  sizeof(int)},
+    {NHTYPE_SIMPLE, (char *) "long", sizeof(long)},
+    {NHTYPE_SIMPLE, (char *) "schar", sizeof(schar)},
+    {NHTYPE_SIMPLE, (char *) "short", sizeof(short)},
+    {NHTYPE_SIMPLE, (char *) "size_t", sizeof(size_t)},
+    {NHTYPE_SIMPLE, (char *) "string", 1},
+    {NHTYPE_SIMPLE, (char *) "time_t",  sizeof(time_t)},
+    {NHTYPE_SIMPLE, (char *) "uchar",  sizeof(uchar)},
+    {NHTYPE_SIMPLE, (char *) "unsigned char", sizeof(unsigned char)},
+    {NHTYPE_SIMPLE, (char *) "unsigned int", sizeof(unsigned int)},
+    {NHTYPE_SIMPLE, (char *) "unsigned long", sizeof(unsigned long)},
+    {NHTYPE_SIMPLE, (char *) "unsigned short",  sizeof(unsigned short)},
+    {NHTYPE_SIMPLE, (char *) "unsigned", sizeof(unsigned)},
+    {NHTYPE_SIMPLE, (char *) "xchar",  sizeof(xchar)},
+    {NHTYPE_COMPLEX, (char *) "align", sizeof(struct align)},
+/*    {NHTYPE_COMPLEX, (char *) "attack", sizeof(struct attack)}, */ /* permonst affil */
+    {NHTYPE_COMPLEX, (char *) "attribs", sizeof(struct attribs)},
+    {NHTYPE_COMPLEX, (char *) "bill_x", sizeof(struct bill_x)},
+    {NHTYPE_COMPLEX, (char *) "book_info", sizeof(struct book_info)},
+    {NHTYPE_COMPLEX, (char *) "branch", sizeof(struct branch)},
+    {NHTYPE_COMPLEX, (char *) "bubble", sizeof(struct bubble)},
+    {NHTYPE_COMPLEX, (char *) "cemetery", sizeof(struct cemetery)},
+/*    {NHTYPE_COMPLEX, (char *) "container", sizeof(struct container)}, */
+    {NHTYPE_COMPLEX, (char *) "context_info", sizeof(struct context_info)},
+    {NHTYPE_COMPLEX, (char *) "d_flags", sizeof(struct d_flags)},
+    {NHTYPE_COMPLEX, (char *) "d_level", sizeof(struct d_level)},
+    {NHTYPE_COMPLEX, (char *) "damage", sizeof(struct damage)},
+    {NHTYPE_COMPLEX, (char *) "dest_area", sizeof(struct dest_area)},
+    {NHTYPE_COMPLEX, (char *) "dgn_topology", sizeof(struct dgn_topology)},
+    {NHTYPE_COMPLEX, (char *) "dig_info", sizeof(struct dig_info)},
+    {NHTYPE_COMPLEX, (char *) "dungeon", sizeof(struct dungeon)},
+    {NHTYPE_COMPLEX, (char *) "edog", sizeof(struct edog)},
+    {NHTYPE_COMPLEX, (char *) "egd", sizeof(struct egd)},
+    {NHTYPE_COMPLEX, (char *) "emin", sizeof(struct emin)},
+    {NHTYPE_COMPLEX, (char *) "engr", sizeof(struct engr)},
+    {NHTYPE_COMPLEX, (char *) "epri", sizeof(struct epri)},
+    {NHTYPE_COMPLEX, (char *) "eshk", sizeof(struct eshk)},
+    {NHTYPE_COMPLEX, (char *) "fakecorridor", sizeof(struct fakecorridor)},
+    {NHTYPE_COMPLEX, (char *) "fe", sizeof(struct fe)},
+    {NHTYPE_COMPLEX, (char *) "flag", sizeof(struct flag)},
+    {NHTYPE_COMPLEX, (char *) "fruit", sizeof(struct fruit)},
+    {NHTYPE_COMPLEX, (char *) "kinfo", sizeof(struct kinfo)},
+    {NHTYPE_COMPLEX, (char *) "levelflags", sizeof(struct levelflags)},
+    {NHTYPE_COMPLEX, (char *) "linfo", sizeof(struct linfo)},
+    {NHTYPE_COMPLEX, (char *) "ls_t", sizeof(struct ls_t)},
+    {NHTYPE_COMPLEX, (char *) "mapseen_feat", sizeof(struct mapseen_feat)},
+    {NHTYPE_COMPLEX, (char *) "mapseen_flags", sizeof(struct mapseen_flags)},
+    {NHTYPE_COMPLEX, (char *) "mapseen_rooms", sizeof(struct mapseen_rooms)},
+    {NHTYPE_COMPLEX, (char *) "mapseen", sizeof(struct mapseen)},
+    {NHTYPE_COMPLEX, (char *) "mextra", sizeof(struct mextra)},
+    {NHTYPE_COMPLEX, (char *) "mkroom", sizeof(struct mkroom)},
+    {NHTYPE_COMPLEX, (char *) "monst", sizeof(struct monst)},
+    {NHTYPE_COMPLEX, (char *) "mvitals", sizeof(struct mvitals)},
+    {NHTYPE_COMPLEX, (char *) "nhcoord", sizeof(struct nhcoord)},
+    {NHTYPE_COMPLEX, (char *) "nhrect", sizeof(struct nhrect)},
+    {NHTYPE_COMPLEX, (char *) "novel_tracking", sizeof(struct novel_tracking)},
+    {NHTYPE_COMPLEX, (char *) "obj", sizeof(struct obj)},
+    {NHTYPE_COMPLEX, (char *) "objclass", sizeof(struct objclass)},
+    {NHTYPE_COMPLEX, (char *) "obj_split", sizeof(struct obj_split)},
+    {NHTYPE_COMPLEX, (char *) "oextra", sizeof(struct oextra)},
+/*    {NHTYPE_COMPLEX, (char *) "permonst", sizeof(struct permonst)}, */
+    {NHTYPE_COMPLEX, (char *) "polearm_info", sizeof(struct polearm_info)},
+    {NHTYPE_COMPLEX, (char *) "prop", sizeof(struct prop)},
+    {NHTYPE_COMPLEX, (char *) "q_score", sizeof(struct q_score)},
+    {NHTYPE_COMPLEX, (char *) "rm", sizeof(struct rm)},
+    {NHTYPE_COMPLEX, (char *) "s_level", sizeof(struct s_level)},
+    {NHTYPE_COMPLEX, (char *) "savefile_info", sizeof(struct savefile_info)},
+    {NHTYPE_COMPLEX, (char *) "skills", sizeof(struct skills)},
+    {NHTYPE_COMPLEX, (char *) "spell", sizeof(struct spell)},
+    {NHTYPE_COMPLEX, (char *) "stairway", sizeof(struct stairway)},
 #ifdef SYSFLAGS
-    {NHTYPE_COMPLEX,"sysflag", sizeof(struct sysflag)},
+    {NHTYPE_COMPLEX, (char *) "sysflag", sizeof(struct sysflag)},
 #endif
-    {NHTYPE_COMPLEX,"takeoff_info", sizeof(struct takeoff_info)},
-    {NHTYPE_COMPLEX,"tin_info", sizeof(struct tin_info)},
-    {NHTYPE_COMPLEX,"trap", sizeof(struct trap)},
-    {NHTYPE_COMPLEX,"tribute_info", sizeof(struct tribute_info)},
-    {NHTYPE_COMPLEX,"u_achieve", sizeof(struct u_achieve)},
-    {NHTYPE_COMPLEX,"u_conduct", sizeof(struct u_conduct)},
-    {NHTYPE_COMPLEX,"u_event", sizeof(struct u_event)},
-    {NHTYPE_COMPLEX,"u_have", sizeof(struct u_have)},
-    {NHTYPE_COMPLEX,"u_realtime", sizeof(struct u_realtime)},
-    {NHTYPE_COMPLEX,"u_roleplay", sizeof(struct u_roleplay)},
-    {NHTYPE_COMPLEX,"version_info", sizeof(struct version_info)},
-    {NHTYPE_COMPLEX,"victual_info", sizeof(struct victual_info)},
-    {NHTYPE_COMPLEX,"vlaunchinfo", sizeof(union vlaunchinfo)},
-    {NHTYPE_COMPLEX,"vptrs", sizeof(union vptrs)},
-    {NHTYPE_COMPLEX,"warntype_info", sizeof(struct warntype_info)},
-    {NHTYPE_COMPLEX,"you", sizeof(struct you)}
+    {NHTYPE_COMPLEX, (char *) "takeoff_info", sizeof(struct takeoff_info)},
+    {NHTYPE_COMPLEX, (char *) "tin_info", sizeof(struct tin_info)},
+    {NHTYPE_COMPLEX, (char *) "trap", sizeof(struct trap)},
+    {NHTYPE_COMPLEX, (char *) "tribute_info", sizeof(struct tribute_info)},
+    {NHTYPE_COMPLEX, (char *) "u_achieve", sizeof(struct u_achieve)},
+    {NHTYPE_COMPLEX, (char *) "u_conduct", sizeof(struct u_conduct)},
+    {NHTYPE_COMPLEX, (char *) "u_event", sizeof(struct u_event)},
+    {NHTYPE_COMPLEX, (char *) "u_have", sizeof(struct u_have)},
+    {NHTYPE_COMPLEX, (char *) "u_realtime", sizeof(struct u_realtime)},
+    {NHTYPE_COMPLEX, (char *) "u_roleplay", sizeof(struct u_roleplay)},
+    {NHTYPE_COMPLEX, (char *) "version_info", sizeof(struct version_info)},
+    {NHTYPE_COMPLEX, (char *) "victual_info", sizeof(struct victual_info)},
+    {NHTYPE_COMPLEX, (char *) "vlaunchinfo", sizeof(union vlaunchinfo)},
+    {NHTYPE_COMPLEX, (char *) "vptrs", sizeof(union vptrs)},
+    {NHTYPE_COMPLEX, (char *) "warntype_info", sizeof(struct warntype_info)},
+    {NHTYPE_COMPLEX, (char *) "you", sizeof(struct you)}
 };
 
 /*
@@ -231,7 +231,7 @@ struct nhdatatypes_t readtagstypes[] = {
  * the code for these ones.
  */
 struct needs_array_handling nah[] = {
-    {"fakecorr", "egd"},
+    {"fakecorr", (char *) "egd"},
     {"bill", "eshk"},
     {"msrooms", "mapseen"},
     {"mtrack", "monst"},