diff --git a/src/mzscheme/include/mzscheme.exp b/src/mzscheme/include/mzscheme.exp
index afa793c9ed..668e122774 100644
--- a/src/mzscheme/include/mzscheme.exp
+++ b/src/mzscheme/include/mzscheme.exp
@@ -463,7 +463,6 @@ scheme_print_string
 scheme_read_byte_string
 scheme_make_namespace
 scheme_add_namespace_option
-scheme_require_from_original_env
 scheme_add_global
 scheme_add_global_symbol
 scheme_make_envunbox
diff --git a/src/mzscheme/include/mzscheme3m.exp b/src/mzscheme/include/mzscheme3m.exp
index 6f9675d73d..84941c25c2 100644
--- a/src/mzscheme/include/mzscheme3m.exp
+++ b/src/mzscheme/include/mzscheme3m.exp
@@ -473,7 +473,6 @@ scheme_print_string
 scheme_read_byte_string
 scheme_make_namespace
 scheme_add_namespace_option
-scheme_require_from_original_env
 scheme_add_global
 scheme_add_global_symbol
 scheme_make_envunbox
diff --git a/src/mzscheme/include/mzwin.def b/src/mzscheme/include/mzwin.def
index 9a92ba439e..bdd51b4f60 100644
--- a/src/mzscheme/include/mzwin.def
+++ b/src/mzscheme/include/mzwin.def
@@ -451,7 +451,6 @@ EXPORTS
  scheme_read_byte_string
  scheme_make_namespace
  scheme_add_namespace_option
- scheme_require_from_original_env
  scheme_add_global
  scheme_add_global_symbol
  scheme_make_envunbox
diff --git a/src/mzscheme/include/mzwin3m.def b/src/mzscheme/include/mzwin3m.def
index 26e1b77970..19fe2ba515 100644
--- a/src/mzscheme/include/mzwin3m.def
+++ b/src/mzscheme/include/mzwin3m.def
@@ -465,7 +465,6 @@ EXPORTS
  scheme_read_byte_string
  scheme_make_namespace
  scheme_add_namespace_option
- scheme_require_from_original_env
  scheme_add_global
  scheme_add_global_symbol
  scheme_make_envunbox
diff --git a/src/mzscheme/src/regexp.c b/src/mzscheme/src/regexp.c
index 7a69c997aa..fee4a1d00a 100644
--- a/src/mzscheme/src/regexp.c
+++ b/src/mzscheme/src/regexp.c
@@ -5069,7 +5069,7 @@ static Scheme_Object *gen_compare(char *name, int pos,
     startp_buffer = NULL;
   } else {
     startp = MALLOC_N_ATOMIC(rxpos, r->nsubexp);
-      maybep = NULL;
+    maybep = NULL;
     endp = MALLOC_N_ATOMIC(rxpos, r->nsubexp);
   }
   if ((r->nsubexp > 1) && !maybep)
diff --git a/src/mzscheme/src/schemef.h b/src/mzscheme/src/schemef.h
index d9db328df1..6aee13eafd 100644
--- a/src/mzscheme/src/schemef.h
+++ b/src/mzscheme/src/schemef.h
@@ -890,8 +890,6 @@ MZ_EXTERN Scheme_Object *scheme_read_byte_string(Scheme_Object *port);
 MZ_EXTERN Scheme_Object *scheme_make_namespace(int argc, Scheme_Object *argv[]);
 MZ_EXTERN void scheme_add_namespace_option(Scheme_Object *key, void (*f)(Scheme_Env *));
 
-MZ_EXTERN void scheme_require_from_original_env(Scheme_Env *env, int syntax_only);
-
 MZ_EXTERN void scheme_add_global(const char *name, Scheme_Object *val, Scheme_Env *env);
 MZ_EXTERN void scheme_add_global_symbol(Scheme_Object *name, Scheme_Object *val,
 			      Scheme_Env *env);
diff --git a/src/mzscheme/src/schemex.h b/src/mzscheme/src/schemex.h
index f278b6ba53..55239e85ef 100644
--- a/src/mzscheme/src/schemex.h
+++ b/src/mzscheme/src/schemex.h
@@ -745,7 +745,6 @@ Scheme_Object *(*scheme_read_byte_string)(Scheme_Object *port);
 /*========================================================================*/
 Scheme_Object *(*scheme_make_namespace)(int argc, Scheme_Object *argv[]);
 void (*scheme_add_namespace_option)(Scheme_Object *key, void (*f)(Scheme_Env *));
-void (*scheme_require_from_original_env)(Scheme_Env *env, int syntax_only);
 void (*scheme_add_global)(const char *name, Scheme_Object *val, Scheme_Env *env);
 void (*scheme_add_global_symbol)(Scheme_Object *name, Scheme_Object *val,
 			      Scheme_Env *env);
diff --git a/src/mzscheme/src/schemex.inc b/src/mzscheme/src/schemex.inc
index 53e0c90c88..d9cc68f466 100644
--- a/src/mzscheme/src/schemex.inc
+++ b/src/mzscheme/src/schemex.inc
@@ -515,7 +515,6 @@
   scheme_extension_table->scheme_read_byte_string = scheme_read_byte_string;
   scheme_extension_table->scheme_make_namespace = scheme_make_namespace;
   scheme_extension_table->scheme_add_namespace_option = scheme_add_namespace_option;
-  scheme_extension_table->scheme_require_from_original_env = scheme_require_from_original_env;
   scheme_extension_table->scheme_add_global = scheme_add_global;
   scheme_extension_table->scheme_add_global_symbol = scheme_add_global_symbol;
   scheme_extension_table->scheme_make_envunbox = scheme_make_envunbox;
diff --git a/src/mzscheme/src/schemexm.h b/src/mzscheme/src/schemexm.h
index 3a6577c66f..4ac0a90b91 100644
--- a/src/mzscheme/src/schemexm.h
+++ b/src/mzscheme/src/schemexm.h
@@ -515,7 +515,6 @@
 #define scheme_read_byte_string (scheme_extension_table->scheme_read_byte_string)
 #define scheme_make_namespace (scheme_extension_table->scheme_make_namespace)
 #define scheme_add_namespace_option (scheme_extension_table->scheme_add_namespace_option)
-#define scheme_require_from_original_env (scheme_extension_table->scheme_require_from_original_env)
 #define scheme_add_global (scheme_extension_table->scheme_add_global)
 #define scheme_add_global_symbol (scheme_extension_table->scheme_add_global_symbol)
 #define scheme_make_envunbox (scheme_extension_table->scheme_make_envunbox)