Cygwin support

src/platform.h

Index: src/platform.h
diff --git a/src/platform.h b/src/platform.h
index 0d7d2e9cb8a49104988799ecde6378aa93eff3d3..8cb1561c5d272f02b8ec97eecef9755a99edbe67 100644
--- a/src/platform.h
+++ b/src/platform.h
@@ -383,10 +383,14 @@ class Thread: public ThreadHandle {
   // LOCAL_STORAGE_KEY_MIN_VALUE and LOCAL_STORAGE_KEY_MAX_VALUE are specified
   // to ensure that enumeration type has correct value range (see Issue 830 for
   // more details).
+#ifdef __CYGWIN__

[Vyacheslav Egorov (Chromium), 2011/02/17 14:00:48]

I understand pthread_key_t is actually a pointer on Cygwin, so you can't cast it
to integer.

But still: can we somehow keep opaque nature of LocalStorageKey and avoid having
ifdef here?
 

+  typedef void* LocalStorageKey;
+#else
   enum LocalStorageKey {
     LOCAL_STORAGE_KEY_MIN_VALUE = kMinInt,
     LOCAL_STORAGE_KEY_MAX_VALUE = kMaxInt
   };
+#endif
 
   // Create new thread.
   Thread();