Avoid compilation failure in snapshot

Rakefile

@@ -27,6 +27,7 @@ task :checkout do
   # The -fPIC flag is necessary when linking a shared library
   # against the static libv8 on x86_64.
   sh "patch -N -p1 -d vendor/v8 < patches/fPIC-on-x64.patch"
+  sh "patch -N -p1 -d vendor/v8 < patches/do-not-imply-vfp3-and-armv7.patch"
 end
 
 desc "compile v8 via the ruby extension mechanism"

patches/do-not-imply-vfp3-and-armv7.patch

@@ -0,0 +1,28 @@
+diff --git a/build/common.gypi b/build/common.gypi
+index e68ee15..198c2b7 100644
+--- a/build/common.gypi
++++ b/build/common.gypi
+@@ -160,7 +160,6 @@
+           [ 'v8_use_arm_eabi_hardfloat=="true"', {
+             'defines': [
+               'USE_EABI_HARDFLOAT=1',
+-              'CAN_USE_VFP3_INSTRUCTIONS',
+             ],
+             'target_conditions': [
+               ['_toolset=="target"', {
+diff --git a/build/standalone.gypi b/build/standalone.gypi
+index 7145a16..f34a6c8 100644
+--- a/build/standalone.gypi
++++ b/build/standalone.gypi
+@@ -76,9 +76,9 @@
+       }],
+     ],
+     # Default ARM variable settings.
+-    'armv7%': 1,
++    'armv7%': 0,
+     'arm_neon%': 0,
+-    'arm_fpu%': 'vfpv3',
++    'arm_fpu%': 'vfp',
+   },
+   'target_defaults': {
+     'default_configuration': 'Debug',