diff --git a/ChangeLog b/ChangeLog
index 908db69be0..a431f525e0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,16 @@
+Sun Dec 29 23:45:53 2002  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
+
+	* gc.c (gc_sweep): adjust GC trigger.
+
+	* dln.c (init_funcname_len): get rid of gcc-3 -O3 warning.
+
+	* eval.c (copy_node_scope): ditto.
+
+	* hash.c (rb_hash_foreach, delete_if_i, select_i, each_value_i,
+	  each_key_i, each_pair_i, envix): ditto.
+
+	* range.c (range_each_func): ditto.
+
 Sun Dec 29 15:30:37 2002  Minero Aoki  <aamine@loveruby.net>
 
 	* lib/fileutils.rb (fu_parseargs): should not inherit ftools.rb's
diff --git a/dln.c b/dln.c
index 55b751223b..af87a2e727 100644
--- a/dln.c
+++ b/dln.c
@@ -107,17 +107,18 @@ int eaccess();
 static int
 init_funcname_len(buf, file)
     char **buf;
-    char *file;
+    const char *file;
 {
-    char *p, *slash;
+    char *p;
+    const char *slash;
     int len;
 
     /* Load the file as an object one */
-    for (p = file, slash = p-1; *p; p++) /* Find position of last '/' */
+    for (slash = file-1; *file; file++) /* Find position of last '/' */
 #ifdef __MACOS__
-	if (*p == ':') slash = p;
+	if (*file == ':') slash = file;
 #else
-	if (*p == '/') slash = p;
+	if (*file == '/') slash = file;
 #endif
 
     len = strlen(FUNCNAME_PATTERN) + strlen(slash + 1);
diff --git a/eval.c b/eval.c
index e363b20930..1c32855f8f 100644
--- a/eval.c
+++ b/eval.c
@@ -1766,7 +1766,7 @@ rb_mod_alias_method(mod, newname, oldname)
 static NODE*
 copy_node_scope(node, rval)
     NODE *node;
-    VALUE rval;
+    NODE *rval;
 {
     NODE *copy = rb_node_newnode(NODE_SCOPE,0,rval,node->nd_next);
 
diff --git a/gc.c b/gc.c
index f925e55e0c..788036a980 100644
--- a/gc.c
+++ b/gc.c
@@ -879,7 +879,7 @@ gc_sweep()
     RVALUE *p, *pend, *final_list;
     int freed = 0;
     int i, j;
-    unsigned long live = 0;
+    unsigned long live = 0, garbage = 0;
 
     if (ruby_in_compile && ruby_parser_stack_on_heap()) {
 	/* should not reclaim nodes during compilation
@@ -929,32 +929,7 @@ gc_sweep()
 	    }
 	    else {
 		RBASIC(p)->flags &= ~FL_MARK;
-		live += sizeof(VALUE);
-		switch (BUILTIN_TYPE(p)) {
-		  case T_OBJECT:
-		    live += size_of_table(ROBJECT(p)->iv_tbl);
-		    break;
-		  case T_CLASS:
-		  case T_ICLASS:
-		    live += size_of_table(RCLASS(p)->iv_tbl);
-		    live += size_of_table(RCLASS(p)->m_tbl);
-		    break;
-		  case T_STRING:
-		    live += RSTRING(p)->len+1;
-		    break;
-		  case T_ARRAY:
-		    live += RARRAY(p)->len * sizeof(VALUE);
-		    break;
-		  case T_HASH:
-		    live += size_of_table(RHASH(p)->tbl);
-		    break;
-		  case T_BIGNUM:
-		    live += RBIGNUM(p)->len * sizeof(BDIGIT);
-		    break;
-		  case T_STRUCT:
-		    live += RSTRUCT(p)->len * sizeof(VALUE);
-		    break;
-		}
+		live++;
 	    }
 	    p++;
 	}
@@ -971,7 +946,9 @@ gc_sweep()
 	    freed += n;
 	}
     }
-    malloc_limit = live;
+    malloc_limit += malloc_increase;
+    malloc_limit *= (double)live / (live + freed);
+    if (malloc_limit < GC_MALLOC_LIMIT) malloc_limit = GC_MALLOC_LIMIT;
     malloc_increase = 0;
     if (freed < FREE_MIN) {
 	add_heap();
diff --git a/hash.c b/hash.c
index d579e307d6..f2014a4d96 100644
--- a/hash.c
+++ b/hash.c
@@ -120,7 +120,7 @@ static struct st_hash_type objhash = {
 struct rb_hash_foreach_arg {
     VALUE hash;
     enum st_retval (*func)();
-    char *arg;
+    VALUE arg;
 };
 
 static int
@@ -167,7 +167,7 @@ static int
 rb_hash_foreach(hash, func, farg)
     VALUE hash;
     enum st_retval (*func)();
-    char *farg;
+    VALUE farg;
 {
     struct rb_hash_foreach_arg arg;
 
@@ -462,7 +462,7 @@ rb_hash_shift(hash)
     }
 }
 
-static int
+static enum st_retval
 delete_if_i(key, value)
     VALUE key, value;
 {
@@ -498,9 +498,9 @@ rb_hash_reject(hash)
     return rb_hash_delete_if(rb_obj_dup(hash));
 }
 
-static int
+static enum st_retval
 select_i(key, value, result)
-    VALUE key, value;
+    VALUE key, value, result;
 {
     VALUE assoc;
 
@@ -611,7 +611,7 @@ rb_hash_empty_p(hash)
     return Qfalse;
 }
 
-static int
+static enum st_retval
 each_value_i(key, value)
     VALUE key, value;
 {
@@ -628,7 +628,7 @@ rb_hash_each_value(hash)
     return hash;
 }
 
-static int
+static enum st_retval
 each_key_i(key, value)
     VALUE key, value;
 {
@@ -645,7 +645,7 @@ rb_hash_each_key(hash)
     return hash;
 }
 
-static int
+static enum st_retval
 each_pair_i(key, value)
     VALUE key, value;
 {
@@ -1076,7 +1076,7 @@ rb_env_path_tainted()
 
 static int
 envix(nam)
-char *nam;
+const char *nam;
 {
     register int i, len = strlen(nam);
     char **env;
diff --git a/range.c b/range.c
index bb12bc38c2..3b56ee7d0b 100644
--- a/range.c
+++ b/range.c
@@ -208,7 +208,7 @@ step_i(i, iter)
 static void
 range_each_func(range, func, v, e, arg)
     VALUE range;
-    void (*func) _((VALUE, void*));
+    VALUE (*func) _((VALUE, void*));
     VALUE v, e;
     void *arg;
 {