From db135493669e5e2e1d0dc5c30c8d4a38bfd6653f Mon Sep 17 00:00:00 2001
From: "Frank Ch. Eigler" <fche@elastic.org>
Date: Thu, 8 Apr 2010 17:15:49 -0400
Subject: PR11343: backward compatibility option/conditional

* main.cxx: Add "--compatible=VERSION" option.
* session.h (compatible): Store it.
* parse.cxx (eval_pp_conditional): Look at it as %( systemtap_v CMP VALUE ... %)
* stap.1.in: Document it.
* testsuite/parseko/preprocess17.stp, parseok/twenty.stp: Test it.
---
 stap.1.in | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'stap.1.in')

diff --git a/stap.1.in b/stap.1.in
index 01fb9aba..0fc052ff 100644
--- a/stap.1.in
+++ b/stap.1.in
@@ -249,6 +249,12 @@ output files exceed
 .B \-\-skip\-badvars
 Ignore out of context variables and substitute with literal 0.
 
+.TP
+.BI \-\-compatible VERSION
+Suppress recent script language or tapset changes which are incompatible
+with given older version of systemtap.  This may be useful if a much older
+systemtap script fails to run.
+
 .SH ARGUMENTS
 
 Any additional arguments on the command line are passed to the script
-- 
cgit