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/CMsgReaderV3.cxx b/common/rfb/CMsgReaderV3.cxx
index 5471593..ba516bf 100644
--- a/common/rfb/CMsgReaderV3.cxx
+++ b/common/rfb/CMsgReaderV3.cxx
@@ -72,7 +72,7 @@
     int y = is->readU16();
     int w = is->readU16();
     int h = is->readU16();
-    unsigned int encoding = is->readU32();
+    int encoding = is->readS32();
 
     switch (encoding) {
     case pseudoEncodingDesktopSize: