Added custom joystick client support so that flight gear can read values

being shipped over from a separate joystick server.

src/Main/fg_io.cxx

@@ -41,6 +41,7 @@
 #include <Network/nmea.hxx>
 #include <Network/pve.hxx>
 #include <Network/rul.hxx>
+#include <Network/joyclient.hxx>
 
 #include <Time/timestamp.hxx>
 
@@ -86,6 +87,9 @@ static FGProtocol *parse_port_config( const string& config )
     } else if ( protocol == "rul" ) {
 	FGRUL *rul = new FGRUL;
 	io = rul;
+    } else if ( protocol == "joyclient" ) {
+	FGJoyClient *joyclient = new FGJoyClient;
+	io = joyclient;
     } else {
 	return NULL;
     }

src/Main/main.cxx

@@ -1292,10 +1292,6 @@ int main( int argc, char **argv ) {
     _control87(MCW_EM, MCW_EM);  /* defined in float.h */
 #endif
 
-    // Initialize ssg (from plib).  Needs to come before we do any
-    // other ssg related stuff
-    ssgInit();
-
     // set default log levels
     fglog().setLogLevels( FG_ALL, FG_INFO );
 
@@ -1329,6 +1325,10 @@ int main( int argc, char **argv ) {
  	exit(-1);
     }
  
+    // Initialize ssg (from plib).  Needs to come before we do any
+    // other ssg stuff, but after opengl/glut has been initialized.
+    ssgInit();
+
     // Initialize the user interface (we need to do this before
     // passing off control to glut and before fgInitGeneral to get our
     // fonts !!!

src/Main/options.cxx

@@ -767,6 +767,8 @@ int fgOPTIONS::parse_option( const string& arg ) {
 	parse_channel( "pve", arg.substr(6) );
     } else if ( arg.find( "--rul=" ) != string::npos ) {
 	parse_channel( "rul", arg.substr(6) );
+    } else if ( arg.find( "--joyclient=" ) != string::npos ) {
+	parse_channel( "joyclient", arg.substr(12) );
 #ifdef FG_NETWORK_OLK
     } else if ( arg == "--disable-network-olk" ) {
 	network_olk = false;