Added "attribute internal" to __MACH__ platforms

Also, makefile does not add compiling options (LOCAL) to linker
flags (MYLDFLAGS).

makefile

@@ -72,7 +72,7 @@ LOCAL = $(TESTS) $(CWARNS)
 # For C89, "-std=c89 -DLUA_USE_C89"
 # Note that Linux/Posix options are not compatible with C89
 MYCFLAGS= $(LOCAL) -std=c99 -DLUA_USE_LINUX
-MYLDFLAGS= $(LOCAL) -Wl,-E
+MYLDFLAGS= -Wl,-E
 MYLIBS= -ldl