Eliminate GCC signed/unsigned warnings related to encodings: The
encoding in the RFB protocol has always been signed, and signed values
are also used in the specification (ie DesktopName = -307 etc). In the
code, however, unsigned types were used in a number of places, but not
all, which causes warnings. This patch fixes the problem by switching
to signed values everywhere.



git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@3968 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/rfb/SMsgHandler.h b/common/rfb/SMsgHandler.h
index f212edf..a0bc64a 100644
--- a/common/rfb/SMsgHandler.h
+++ b/common/rfb/SMsgHandler.h
@@ -46,7 +46,7 @@
     virtual void clientInit(bool shared);
 
     virtual void setPixelFormat(const PixelFormat& pf);
-    virtual void setEncodings(int nEncodings, rdr::U32* encodings);
+    virtual void setEncodings(int nEncodings, rdr::S32* encodings);
     virtual void framebufferUpdateRequest(const Rect& r, bool incremental) = 0;
     virtual void setDesktopSize(int fb_width, int fb_height,
                                 const ScreenSet& layout) = 0;