hw/nxagent/: Stop using non-portable '__progname', set up our own…

nx-X11/programs/Xserver/hw/nxagent/Args.c

@@ -124,7 +124,7 @@ extern int _XGetBitsPerPixel(Display *dpy, int depth);
 
 extern char dispatchExceptionAtReset;
 
-extern const char *__progname;
+const char *nxagentProgName;
 
 char nxagentDisplayName[NXAGENTDISPLAYNAMELENGTH];
 Bool nxagentSynchronize = False;
@@ -185,6 +185,8 @@ int ddxProcessArgument(int argc, char *argv[], int i)
    * Ensure that the options are set to their defaults.
    */
 
+  nxagentProgName = argv[0];
+
   static Bool resetOptions = True;
 
   if (resetOptions == True)
@@ -1185,13 +1187,13 @@ static void nxagentParseOptions(char *name, char *value)
   {
 #if !defined(PANORAMIX) && !defined(RANDR)
     nxagentChangeOption(Xinerama, 0);
-    fprintf(stderr, "Warning: No Xinerama support compiled into %s.\n", __progname);
+    fprintf(stderr, "Warning: No Xinerama support compiled into %s.\n", nxagentProgName);
     return;
 #else
     if (PANORAMIX_DISABLED_COND && RRXINERAMA_DISABLED_COND)
     {
       nxagentChangeOption(Xinerama, 0);
-      fprintf(stderr, "Warning: XINERAMA extension has been disabled on %s startup.\n", __progname);
+      fprintf(stderr, "Warning: XINERAMA extension has been disabled on %s startup.\n", nxagentProgName);
       return;
     }
 

nx-X11/programs/Xserver/hw/nxagent/Init.c

@@ -194,8 +194,8 @@ int nxagentX2go;
 
 void checkX2goAgent()
 {
-  extern const char *__progname;
-  if( strcasecmp(__progname,"x2goagent") == 0)
+  extern const char *nxagentProgName;
+  if( strcasecmp(nxagentProgName,"x2goagent") == 0)
   {
     fprintf(stderr, "\nrunning as X2Go Agent\n");
     nxagentX2go=1;

nx-X11/programs/Xserver/os/utils.c

@@ -557,8 +557,8 @@ AdjustWaitForDelay (void * waitTime, unsigned long newdelay)
 void UseMsg(void)
 {
 #ifdef NXAGENT_SERVER
-    extern const char *__progname;
-    ErrorF("Usage: %s [<options>] [:<display>]\n\n", __progname);
+    extern const char *nxagentProgName;
+    ErrorF("Usage: %s [<options>] [:<display>]\n\n", nxagentProgName);
 #else
     ErrorF("use: X [:<display>] [option]\n");
 #endif