diff --git a/usr/austin/ogle/cmd.go b/usr/austin/ogle/cmd.go
index e24094244f9..88a675711fb 100644
--- a/usr/austin/ogle/cmd.go
+++ b/usr/austin/ogle/cmd.go
@@ -94,7 +94,7 @@ var cmds = []cmd {
 // successful, it returns the command and the bytes remaining after
 // the command, which should be passed to the command.
 func getCmd(line []byte) (*cmd, []byte) {
-	sc, ev := newScanner(line);
+	sc, _ := newScanner(line);
 	pos, tok, lit := sc.Scan();
 	if sc.ErrorCount != 0 || tok != token.IDENT {
 		return nil, nil;
@@ -208,8 +208,7 @@ func parseLoad(args []byte) (ident string, path string, err os.Error) {
 	var toks [4]token.Token;
 	var lits [4][]byte;
 	for i := range toks {
-		var pos token.Position;
-		pos, toks[i], lits[i] = sc.Scan();
+		_, toks[i], lits[i] = sc.Scan();
 	}
 	if sc.ErrorCount != 0 {
 		err = ev.GetError(scanner.NoMultiples);
@@ -287,7 +286,7 @@ func cmdBt(args []byte) os.Error {
 
 func parseNoArgs(args []byte, usage string) os.Error {
 	sc, ev := newScanner(args);
-	pos, tok, lit := sc.Scan();
+	_, tok, _ := sc.Scan();
 	if sc.ErrorCount != 0 {
 		return ev.GetError(scanner.NoMultiples);
 	}
diff --git a/usr/austin/ogle/rtype.go b/usr/austin/ogle/rtype.go
index 05dfa17aba6..a71a70a4af0 100644
--- a/usr/austin/ogle/rtype.go
+++ b/usr/austin/ogle/rtype.go
@@ -38,7 +38,7 @@ func newManualType(t eval.Type, arch Arch) *remoteType {
 	}
 
 	// Get the type map for this architecture
-	typeMap, ok := manualTypes[arch];
+	typeMap, _ := manualTypes[arch];
 	if typeMap == nil {
 		typeMap = make(map[eval.Type] *remoteType);
 		manualTypes[arch] = typeMap;
@@ -74,7 +74,7 @@ func newManualType(t eval.Type, arch Arch) *remoteType {
 		rt = &remoteType{t, arch.PtrSize(), arch.PtrSize(), mk};
 		// Construct the element type after registering the
 		// type to break cycles.
-		typeMap[t] = rt;
+		typeMap[eval.Type(t)] = rt;
 		elem = newManualType(t.Elem, arch);
 
 	case *eval.ArrayType:
diff --git a/usr/austin/ogle/rvalue.go b/usr/austin/ogle/rvalue.go
index 2d95a409dd6..b22f531acbb 100644
--- a/usr/austin/ogle/rvalue.go
+++ b/usr/austin/ogle/rvalue.go
@@ -7,7 +7,6 @@ package ogle
 import (
 	"eval";
 	"fmt";
-	"os";
 	"ptrace";
 )
 
diff --git a/usr/austin/ogle/vars.go b/usr/austin/ogle/vars.go
index 17c4baa579b..eb96b60ce88 100644
--- a/usr/austin/ogle/vars.go
+++ b/usr/austin/ogle/vars.go
@@ -142,7 +142,7 @@ func (p *Process) populateWorld(w *eval.World) os.Error {
 
 		// Symbol name
 		name := sc.BaseName();
-		if prev, ok := pkg[name]; ok {
+		if _, ok := pkg[name]; ok {
 			log.Stderrf("Multiple definitions of symbol %s", sc.Name);
 			continue;
 		}