nxagent: Add -version cmdline option.

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

@@ -336,6 +336,12 @@ int ddxProcessArgument(int argc, char *argv[], int i)
     return 0;
   }
 
+  if (!strcmp(argv[i], "-version"))
+  {
+    nxagentShowVersionInfo();
+    exit(0);
+  }
+
   /*
    * This had to be '-options' since the beginning
    * but was '-option' by mistake. Now we have to
@@ -2112,6 +2118,7 @@ void ddxUseMsg()
   ErrorF("-R                     enable rootless mode\n");
   ErrorF("-S                     enable shadow mode\n");
   ErrorF("-B                     enable proxy binding mode\n");
+  ErrorF("-version               show version information and exit\n");
 }
 
 static int nxagentGetDialogName()
@@ -2609,3 +2616,7 @@ void nxagentSetCoalescence()
   nxagentChangeOption(DisplayCoalescence, timeout);
 }
 
+void nxagentShowVersionInfo(void)
+{
+    ErrorF("NXAGENT - Version " NX_VERSION_CURRENT_STRING "\n");
+}

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

@@ -96,6 +96,8 @@ void nxagentSetBufferSize(void);
 void nxagentSetScheduler(void);
 void nxagentSetCoalescence(void);
 
+void nxagentShowVersionInfo(void);
+
 extern int nxagentUserDefinedFontPath;
 
 extern int nxagentRemoteMajor;

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

@@ -85,9 +85,6 @@ is" without express or implied warranty.
 #undef  DEBUG
 #undef  DUMP
 
-#define NXAGENT_VERSION NX_VERSION_CURRENT
-#define NXAGENT_VERSION_STRING NX_VERSION_CURRENT_STRING
-
 /*
  * ProcVector array defined in tables.c.
  */
@@ -234,7 +231,7 @@ void InitOutput(ScreenInfo *screenInfo, int argc, char *argv[])
 
   if (serverGeneration <= 1)
   {
-    fprintf(stderr, "\nNXAGENT - Version " NXAGENT_VERSION_STRING "\n\n");
+    fprintf(stderr, "\nNXAGENT - Version " NX_VERSION_CURRENT_STRING "\n\n");
     fprintf(stderr, "Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com)\n");
     fprintf(stderr, "Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de>\n");
     fprintf(stderr, "Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>\n");

nx-X11/programs/Xserver/hw/nxagent/man/nxagent.1

@@ -449,6 +449,9 @@ enable shadow mode
 .B \-B
 enable proxy binding mode
 .TP 8
+.B \-version
+show version information and exit
+.TP 8
 .B \-options \fIfilename\fP
 path to an options file containing nx/nx options (see below).
 .PP