Make the version of libobjc generated by the makefile the one Etoile expects

Makefile

@@ -2,7 +2,7 @@
 
 .SUFFIXES: .cc .c .m .o
 
-MAJOR_VERSION = 1
+MAJOR_VERSION = 4
 MINOR_VERSION = 6
 SUBMINOR_VERSION = 0
 VERSION = $(MAJOR_VERSION).$(MINOR_VERSION).$(SUBMINOR_VERSION)
@@ -14,6 +14,8 @@ CPPFLAGS += -D__OBJC_RUNTIME_INTERNAL__=1 -D_XOPEN_SOURCE=500
 
 # Suppress warnings about incorrect selectors
 CPPFLAGS += -DNO_SELECTOR_MISMATCH_WARNINGS
+# Some helpful flags for debugging.
+#CPPFLAGS += -g -O0 -fno-inline
 
 PREFIX?= /usr/local
 LIB_DIR= ${PREFIX}/lib

class.h

@@ -261,11 +261,16 @@ void class_table_insert(Class class);
  */
 extern Class SmallObjectClasses[4];
 
+static BOOL isSmallObject(id obj)
+{
+	uintptr_t addr = ((uintptr_t)obj);
+	return (addr & OBJC_SMALL_OBJECT_MASK) != 0;
+}
+
 __attribute__((always_inline))
 static inline Class classForObject(id obj)
 {
-	uintptr_t addr = ((uintptr_t)obj);
+	if (UNLIKELY(isSmallObject(obj)))
-	if (UNLIKELY((addr & 1) == 1))
 	{
 		if (sizeof(Class) == 4)
 		{
@@ -273,15 +278,11 @@ static inline Class classForObject(id obj)
 		}
 		else
 		{
+			uintptr_t addr = ((uintptr_t)obj);
 			return SmallObjectClasses[((addr >> 1) & 3)];
 		}
 	}
 	return obj->isa;
 }
 
-static BOOL isSmallObject(id obj)
-{
-	uintptr_t addr = ((uintptr_t)obj);
-	return (addr & 1) == 1;
-}
 #endif //__OBJC_CLASS_H_INCLUDED