Add -version option

(Also accepts but does not document --version)

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/test/x11perf/-/merge_requests/10>

1 files changed, 6 insertions, 1 deletions

diff --git a/x11perf.c b/x11perf.c
index 8018bf7..cea0351 100644
--- a/x11perf.c
+++ b/x11perf.c
@@ -358,7 +358,7 @@ Get_Display_Name(int *pargc, /* MODIFIED */
 /*
  * GetVersion (argc, argv) Look for -v followed by a version number.
  * If found remove it from command line.  Don't go past a lone -.
- * Leave -v followed by non-numbers as it could be -vclass.
+ * Leave -v followed by non-numbers as it could be -vclass or -version.
  */
 
 static Version
@@ -500,6 +500,7 @@ usage(void)
 "    -v1.5                     perform only v1.5 tests using old semantics\n"
 "    -v1.6                     perform only v1.6 tests using old semantics\n"
 "    -v1.7                     perform only v1.7 tests using old semantics\n"
+"    -version                  print version and exit\n"
 "    -su                       request save unders on windows\n"
 "    -bs <backing_store_hint>  WhenMapped or Always (default = NotUseful)\n"
 ;
@@ -1069,6 +1070,10 @@ main(int argc, char *argv[])
 	    } else if (strcmp(argv[i], "Always") == 0) {
 	      xparms.backing_store = Always;
 	    } else usage ();
+	} else if ((strcmp(argv[i], "-version") == 0) ||
+		   (strcmp(argv[i], "--version") == 0)) {
+	    puts(PACKAGE_STRING);
+	    exit(EXIT_SUCCESS);
 	} else {
 	    int len,found;
 	    ForEachTest (j) {