Add -version option

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

2 files changed, 9 insertions, 1 deletions

diff --git a/man/xbiff.man b/man/xbiff.man
index 739b362..f98c308 100644
--- a/man/xbiff.man
+++ b/man/xbiff.man
@@ -77,6 +77,9 @@ is loudest).
 .B \-shape
 This option indicates that the mailbox window should be shaped if masks for
 the empty or full images are given.
+.TP 8
+.B \-version
+This option indicates that \fIxbiff\fP should print its version and exit.
 .PP
 The following standard X Toolkit command line arguments are commonly used with
 .I xbiff:
diff --git a/xbiff.c b/xbiff.c
index 46f4550..e833a2e 100644
--- a/xbiff.c
+++ b/xbiff.c
@@ -80,7 +80,8 @@ static void Usage (void)
 "    -bg color                      background color\n"
 "    -fg color                      foreground color\n"
 "    -rv                            reverse video\n"
-"    -shape                         shape the window\n";
+"    -shape                         shape the window\n"
+"    -version                       print version info and exit\n";
 
     fprintf (stderr, "usage:  %s [-options ...]\n", ProgramName);
     fprintf (stderr, "%s\n", help_message);
@@ -100,6 +101,10 @@ main (int argc, char **argv)
 
     toplevel = XtAppInitialize(&xtcontext, "XBiff", options, XtNumber (options),
 			       &argc, argv, NULL, NULL, 0);
+    if (argc == 2 && strcmp(argv[1], "-version") == 0) {
+        puts(PACKAGE_STRING);
+        exit(0);
+    }
     if (argc != 1) Usage ();
 
     /*