More ARM GYP fixes

Makefile

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 104 matching lines @@
 ifeq ($(regexp), interpreted)
   GYPFLAGS += -Dv8_interpreted_regexp=1
 endif
 # arm specific flags.
 # armv7=false/true
 ifeq ($(armv7), false)
   GYPFLAGS += -Darmv7=0
 else
 ifeq ($(armv7), true)
   GYPFLAGS += -Darmv7=1
-else
-  GYPFLAGS += -Darmv7=default
 endif
 endif
 # vfp2=off. Deprecated, use armfpu=
 # vfp3=off. Deprecated, use armfpu=
 ifeq ($(vfp3), off)
   GYPFLAGS += -Darm_fpu=vfp
 endif
 # hardfp=on/off. Deprecated, use armfloatabi
 ifeq ($(hardfp),on)
   GYPFLAGS += -Darm_float_abi=hard
@@ skipping 22 matching lines @@
 endif
 else
   GYPFLAGS += -Darm_float_abi=$(armfloatabi)
 endif
 # armthumb=on/off
 ifeq ($(armthumb), off)
   GYPFLAGS += -Darm_thumb=0
 else
 ifeq ($(armthumb), on)
   GYPFLAGS += -Darm_thumb=1
-else
-  GYPFLAGS += -Darm_thumb=default
 endif
 endif
 # armtest=on
 # With this flag set, by default v8 will only use features implied
 # by the compiler (no probe). This is done by modifying the default
 # values of enable_armv7, enable_vfp2, enable_vfp3 and enable_32dregs.
 # Modifying these flags when launching v8 will enable the probing for
 # the specified values.
 # When using the simulator, this flag is implied.
 ifeq ($(armtest), on)
@@ skipping 169 matching lines @@
 # Stores current GYPFLAGS in a file.
 $(ENVFILE).new:
         @mkdir -p $(OUTDIR); echo "GYPFLAGS=$(GYPFLAGS)" > $(ENVFILE).new; \
             echo "CXX=$(CXX)" >> $(ENVFILE).new
 
 # Dependencies.
 # Remember to keep these in sync with the DEPS file.
 dependencies:
         svn checkout --force http://gyp.googlecode.com/svn/trunk build/gyp \
             --revision 1501