Fix cross-compilation for ARM (hopefully)

build/v8-features.gypi

 # Copyright 2011 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
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@@ skipping 81 matching lines @@
                 'cflags': [
                   '-mfloat-abi=hard',
                 ],
               }, {
                 'defines': [
                   'USE_EABI_HARDFLOAT=0',
                 ],
               }],
               # The ARM assembler assumes the host is 32 bits,
               # so force building 32-bit host tools.
-              [ 'host_arch=="x64"', {
+              [ 'host_arch=="x64" and _toolset=="host "', {
                 'cflags': ['-m32'],
                 'ldflags': ['-m32'],
               }],
             ],
           }],
           ['v8_target_arch=="ia32"', {
             'defines': [
               'V8_TARGET_ARCH_IA32',
             ],
           }],
@@ skipping 16 matching lines @@
           'DEBUG',
           '_DEBUG',
           'ENABLE_DISASSEMBLER',
           'V8_ENABLE_CHECKS',
           'OBJECT_PRINT',
         ],
       }
     }
   }
 }