diff --git a/include/extern.h b/include/extern.h
index 585b2273b..ecb1ee654 100644
--- a/include/extern.h
+++ b/include/extern.h
@@ -2664,7 +2664,6 @@ extern void get_plname_from_file(NHFILE *, char *, boolean) NONNULLARG12;
 #ifdef SELECTSAVED
 extern int restore_menu(winid);
 #endif
-extern void minit(void);
 extern boolean lookup_id_mapping(unsigned, unsigned *) NONNULLARG2;
 extern int validate(NHFILE *, const char *, boolean) NONNULLARG1;
 /* extern void reset_restpref(void); */
diff --git a/include/global.h b/include/global.h
index db6faa52d..a38c7722b 100644
--- a/include/global.h
+++ b/include/global.h
@@ -115,16 +115,6 @@ typedef uchar nhsym;
 #endif
 #endif
 
-#if 0
-/* comment out to test effects of each #define -- these will probably
- * disappear eventually
- */
-#ifdef INTERNAL_COMP
-#define RLECOMP  /* run-length compression of levl array - JLee */
-#define ZEROCOMP /* zero-run compression of everything - Olaf Seibert */
-#endif
-#endif
-
 /* #define SPECIALIZATION */ /* do "specialized" version of new topology */
 
 #ifdef BITFIELDS
@@ -359,21 +349,6 @@ struct version_info {
     unsigned long entity_count;  /* # of monsters and objects */
 };
 
-struct savefile_info {
-    unsigned long sfi1; /* compression etc. */
-    unsigned long sfi2; /* miscellaneous */
-    unsigned long sfi3; /* thirdparty */
-};
-#ifdef NHSTDC
-#define SFI1_EXTERNALCOMP (1UL)
-#define SFI1_RLECOMP (1UL << 1)
-#define SFI1_ZEROCOMP (1UL << 2)
-#else
-#define SFI1_EXTERNALCOMP (1L)
-#define SFI1_RLECOMP (1L << 1)
-#define SFI1_ZEROCOMP (1L << 2)
-#endif
-
 /* This is used to store some build-info data that used
    to be present in makedefs-generated header file date.h */
 
diff --git a/src/do.c b/src/do.c
index 2d1d7d57b..ae26e7158 100644
--- a/src/do.c
+++ b/src/do.c
@@ -1708,7 +1708,6 @@ goto_level(
         }
         reseed_random(rn2);
         reseed_random(rn2_on_display_rng);
-        minit(); /* ZEROCOMP */
         getlev(nhfp, svh.hackpid, new_ledger);
         close_nhfile(nhfp);
         oinit(); /* reassign level dependent obj probabilities */
diff --git a/src/save.c b/src/save.c
index 974f25995..f7aab28b8 100644
--- a/src/save.c
+++ b/src/save.c
@@ -204,7 +204,6 @@ dosave0(void)
             HUP done(TRICKED);
             goto done;
         }
-        minit(); /* ZEROCOMP */
         getlev(onhfp, svh.hackpid, ltmp);
         close_nhfile(onhfp);
         if (nhfp->structlevel) {
diff --git a/src/sfstruct.c b/src/sfstruct.c
index ae0b2c5fd..f4a09163f 100644
--- a/src/sfstruct.c
+++ b/src/sfstruct.c
@@ -206,12 +206,6 @@ bwrite(int fd, const genericptr_t loc, unsigned num)
 
 /*  ===================================================== */
 
-void
-minit(void)
-{
-    return;
-}
-
 void
 mread(int fd, genericptr_t buf, unsigned len)
 {