diff --git a/Examples/test-suite/csharp_exceptions.i b/Examples/test-suite/csharp_exceptions.i
index 35ed2db54..870e01790 100644
--- a/Examples/test-suite/csharp_exceptions.i
+++ b/Examples/test-suite/csharp_exceptions.i
@@ -30,7 +30,7 @@
 %csnothrowexception NoThrowException() {
   try {
     $action
-  } catch(Ex e) {
+  } catch(Ex) {
     // swallowed
   }
 }
diff --git a/Examples/test-suite/typemap_variables.i b/Examples/test-suite/typemap_variables.i
index 2e06a5017..a9f442b0f 100644
--- a/Examples/test-suite/typemap_variables.i
+++ b/Examples/test-suite/typemap_variables.i
@@ -18,13 +18,13 @@
 // Statically typed languages use in/out for variables
 %typemap(in)  int                           "this_will_not_compile_in "
 %typemap(out) int                           "this_will_not_compile_out"
-%typemap(in)  int globul                    "/*int globul in */"
+%typemap(in)  int globul                    "/*int globul in */ $1=0;"
 %typemap(out) int globul                    "/*int globul out*/"
-%typemap(in)  int Space::nspace             "/*int nspace in */"
+%typemap(in)  int Space::nspace             "/*int nspace in */ $1=0;"
 %typemap(out) int Space::nspace             "/*int nspace out*/"
-%typemap(in)  int member                    "/*int member in */"
+%typemap(in)  int member                    "/*int member in */ $1=0;"
 %typemap(out) int member                    "/*int member out*/"
-%typemap(in)  int Space::Struct::smember    "/*int smember in */"
+%typemap(in)  int Space::Struct::smember    "/*int smember in */ $1=0;"
 %typemap(out) int Space::Struct::smember    "/*int smember out*/"
 
 %typemap(javain)  int                           "this_will_not_compile_javain "
diff --git a/Examples/test-suite/virtual_poly.i b/Examples/test-suite/virtual_poly.i
index e7543f709..338637f43 100644
--- a/Examples/test-suite/virtual_poly.i
+++ b/Examples/test-suite/virtual_poly.i
@@ -157,7 +157,7 @@ template<typename T> struct Base {
   virtual IntegerPtr defaultargs(double d, int * a = 0) = 0;
   static void StaticHidden() {}
   void AmIAmINotVirtual() {}
-  IntegerPtr NotVirtual(IntegerPtr i) {}
+  IntegerPtr NotVirtual(IntegerPtr i) { return 0; }
   virtual Base * covariant(int a = 0, int * i = 0) { return 0; }
   typedef Base * BasePtr;
   virtual BasePtr covariant2() { return 0; }
@@ -172,7 +172,7 @@ template<typename T> struct Derived : Base<T> {
   Double function() { return 0; }
   int * defaultargs(Double d, IntegerPtr a = 0) { return 0; }
   void AmIAmINotVirtual() {}
-  int * NotVirtual(int *i) {}
+  int * NotVirtual(int *i) { return 0; }
   typedef Derived * DerivedPtr;
   DerivedPtr covariant(int a = 0, IntegerPtr i = 0) { return 0; }
   DerivedPtr covariant2() { return 0; }
@@ -185,7 +185,7 @@ template<typename T> struct Bottom : Derived<T> {
   int * method() const { return 0; }
   static void StaticHidden() {}
   void AmIAmINotVirtual() {}
-  IntegerPtr NotVirtual(IntegerPtr i) {}
+  IntegerPtr NotVirtual(IntegerPtr i) { return 0; }
   void (*funcptr)(int a, bool b);
   Bottom<T> * covariant(int a = 0, IntegerPtr i = 0) { return 0; }
   Derived<T> * covariant2() { return 0; }
diff --git a/Source/Modules/allocate.cxx b/Source/Modules/allocate.cxx
index e81d7b006..4b83e1c3e 100644
--- a/Source/Modules/allocate.cxx
+++ b/Source/Modules/allocate.cxx
@@ -148,7 +148,7 @@ class Allocate : public Dispatcher {
 	    String *base_returntype = function_return_type(base);
 	    returntype_match = Strcmp(this_returntype, base_returntype) == 0 ? true : false;
 	    if (!returntype_match) {
-	      covariant_returntype = SwigType_issubtype(this_returntype, base_returntype);
+	      covariant_returntype = SwigType_issubtype(this_returntype, base_returntype) ? true : false;
 	      returntype_match = covariant_returntype;
 	    }
 
@@ -168,8 +168,8 @@ class Allocate : public Dispatcher {
 		this_fn = SwigType_typedef_resolve_all(this_fn);
 		if (Strcmp(base_fn, this_fn) == 0) {
 		  // Finally check that the qualifiers match
-		  bool base_qualifier = SwigType_isqualifier(resolved_decl);
-		  bool this_qualifier = SwigType_isqualifier(base_decl);
+		  int base_qualifier = SwigType_isqualifier(resolved_decl);
+		  int this_qualifier = SwigType_isqualifier(base_decl);
 		  if (base_qualifier == this_qualifier) {
 		    decl_match = true;
 		  }
diff --git a/Source/Modules/java.cxx b/Source/Modules/java.cxx
index 0e0112ad7..36420178a 100644
--- a/Source/Modules/java.cxx
+++ b/Source/Modules/java.cxx
@@ -1486,7 +1486,7 @@ class JAVA : public Language {
     String *baseclass = NULL;
     String *c_baseclassname = NULL;
     String *typemap_lookup_type = Getattr(n,"classtypeobj");
-    bool    feature_director = Swig_directorclass(n);
+    bool    feature_director = Swig_directorclass(n) ? true : false;
 
     /* Deal with inheritance */
     List *baselist = Getattr(n,"bases");
@@ -2793,7 +2793,7 @@ class JAVA : public Language {
 	   sym_name, sym_name);
     Printf(code_wrap->code, "  (void)jcls;\n");
     Printf(code_wrap->code, "  if (director) {\n");
-    Printf(code_wrap->code, "    director->swig_java_change_ownership(jenv, jself, jtake_or_release);\n");
+    Printf(code_wrap->code, "    director->swig_java_change_ownership(jenv, jself, jtake_or_release ? true : false);\n");
     Printf(code_wrap->code, "  }\n");
     Printf(code_wrap->code, "}\n");
 
diff --git a/Source/Modules/python.cxx b/Source/Modules/python.cxx
index 8a10e16a6..223b6c12d 100644
--- a/Source/Modules/python.cxx
+++ b/Source/Modules/python.cxx
@@ -1407,7 +1407,7 @@ public:
     emit_action(n,f);
 
     if (directorsEnabled()) {
-      Printf(f->code, "} catch (Swig::DirectorException& e) {\n");
+      Printf(f->code, "} catch (Swig::DirectorException&) {\n");
       Printf(f->code, "  SWIG_fail;\n");
       Printf(f->code, "}\n");
     }