arm: Look for __SOFTFP__ besides __SOFTP.

src/platform-linux.cc

 // 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 221 matching lines @@
 #else
   return false;
 #endif
 
 #elif GCC_VERSION < 40500
   return false;
 
 #else
 #if defined(__ARM_PCS_VFP)
   return true;
-#elif defined(__ARM_PCS) || defined(__SOFTFP) || !defined(__VFP_FP__)
+#elif defined(__ARM_PCS) || defined(__SOFTFP__) || defined(__SOFTFP) || \
+      !defined(__VFP_FP__)
   return false;
 #else
 #error "Your version of GCC does not report the FP ABI compiled for."          \
        "Please report it on this issue"                                        \
        "http://code.google.com/p/v8/issues/detail?id=2140"
 
 #endif
 #endif
 #undef GCC_VERSION
 }
@@ skipping 507 matching lines @@
   limit_mutex = CreateMutex();
 }
 
 
 void OS::TearDown() {
   delete limit_mutex;
 }
 
 
 } }  // namespace v8::internal