Enable building V8 for Android on Mac

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 157 matching lines @@
                  CXX="$(CXX)" LINK="$(LINK)" \
                  BUILDTYPE=$(shell echo $(subst .,,$(suffix $@)) | \
                              python -c "print raw_input().capitalize()") \
                  builddir="$(shell pwd)/$(OUTDIR)/$@"
 
 native: $(OUTDIR)/Makefile.native
         @$(MAKE) -C "$(OUTDIR)" -f Makefile.native \
                  CXX="$(CXX)" LINK="$(LINK)" BUILDTYPE=Release \
                  builddir="$(shell pwd)/$(OUTDIR)/$@"
 
-$(ANDROID_ARCHES): $(addprefix $$@.,$(MODE))
+$(ANDROID_ARCHES): $(addprefix $$@.,$(MODES))
 
 $(ANDROID_BUILDS): $(GYPFILES) $(ENVFILE) build/android.gypi \
                    must-set-ANDROID_NDK_ROOT
         @tools/android-build.sh $(basename $@) $(subst .,,$(suffix $@)) \
                                 $(OUTDIR) $(GYPFLAGS)
 
 # Test targets.
 check: all
         @tools/test-wrapper-gypbuild.py $(TESTJOBS) --outdir=$(OUTDIR) \
             --arch=$(shell echo $(DEFAULT_ARCHES) | sed -e 's/ /,/g') \
@@ skipping 69 matching lines @@
 
 # Stores current GYPFLAGS in a file.
 $(ENVFILE).new:
         @mkdir -p $(OUTDIR); echo "GYPFLAGS=$(GYPFLAGS)" > $(ENVFILE).new; \
             echo "CXX=$(CXX)" >> $(ENVFILE).new
 
 # Dependencies.
 dependencies:
         svn checkout --force http://gyp.googlecode.com/svn/trunk build/gyp \
             --revision 1282