Add build instructions for the DTMF file.

YSFGateway/Makefile

@@ -4,7 +4,7 @@ CFLAGS  = -g -O3 -Wall -std=c++0x -pthread
 LIBS    = -lm -lpthread
 LDFLAGS = -g
 
-OBJECTS = APRSWriterThread.o APRSWriter.o Conf.o CRC.o Golay24128.o GPS.o Log.o Network.o Reflectors.o StopWatch.o Sync.o TCPSocket.o Thread.o Timer.o \
+OBJECTS = APRSWriterThread.o APRSWriter.o Conf.o CRC.o DTMF.o Golay24128.o GPS.o Log.o Network.o Reflectors.o StopWatch.o Sync.o TCPSocket.o Thread.o Timer.o \
 					UDPSocket.o Utils.o WiresX.o YSFConvolution.o YSFFICH.o YSFGateway.o YSFPayload.o
 
 all:		YSFGateway

YSFGateway/Makefile.Solaris

@@ -4,7 +4,7 @@ CFLAGS  = -g -O3 -Wall -std=c++0x -pthread
 LIBS    = -lm -lpthread -lsocket
 LDFLAGS = -g
 
-OBJECTS = APRSWriterThread.o APRSWriter.o Conf.o CRC.o Golay24128.o GPS.o Log.o Network.o Reflectors.o StopWatch.o Sync.o TCPSocket.o Thread.o Timer.o \
+OBJECTS = APRSWriterThread.o APRSWriter.o Conf.o CRC.o DTMF.o Golay24128.o GPS.o Log.o Network.o Reflectors.o StopWatch.o Sync.o TCPSocket.o Thread.o Timer.o \
 					UDPSocket.o Utils.o WiresX.o YSFConvolution.o YSFFICH.o YSFGateway.o YSFPayload.o
 
 all:		YSFGateway

YSFGateway/YSFGateway.vcxproj

@@ -150,6 +150,7 @@
     <ClInclude Include="APRSWriterThread.h" />
     <ClInclude Include="Conf.h" />
     <ClInclude Include="CRC.h" />
+    <ClInclude Include="DTMF.h" />
     <ClInclude Include="Golay24128.h" />
     <ClInclude Include="GPS.h" />
     <ClInclude Include="Log.h" />
@@ -176,6 +177,7 @@
     <ClCompile Include="APRSWriterThread.cpp" />
     <ClCompile Include="Conf.cpp" />
     <ClCompile Include="CRC.cpp" />
+    <ClCompile Include="DTMF.cpp" />
     <ClCompile Include="Golay24128.cpp" />
     <ClCompile Include="GPS.cpp" />
     <ClCompile Include="Log.cpp" />

YSFGateway/YSFGateway.vcxproj.filters

@@ -83,6 +83,9 @@
     <ClInclude Include="APRSWriter.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="DTMF.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="Network.cpp">
@@ -148,5 +151,8 @@
     <ClCompile Include="APRSWriter.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="DTMF.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>