Cygwin support

src/ia32/macro-assembler-ia32.cc

 // 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
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1265 matching lines @@
       ExternalReference(fid), num_arguments, result_size);
 }
 
 
 // If true, a Handle<T> returned by value from a function with cdecl calling
 // convention will be returned directly as a value of location_ field in a
 // register eax.
 // If false, it is returned as a pointer to a preallocated by caller memory
 // region. Pointer to this region should be passed to a function as an
 // implicit first argument.
-#if defined(USING_BSD_ABI) || defined(__MINGW32__)
+#if defined(USING_BSD_ABI) || defined(__MINGW32__) || defined(__CYGWIN__)
 static const bool kReturnHandlesDirectly = true;
 #else
 static const bool kReturnHandlesDirectly = false;
 #endif
 
 
 Operand ApiParameterOperand(int index) {
   return Operand(
       esp, (index + (kReturnHandlesDirectly ? 0 : 1)) * kPointerSize);
 }
@@ skipping 703 matching lines @@
 
   // Check that the code was patched as expected.
   ASSERT(masm_.pc_ == address_ + size_);
   ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32