From a848e47ced6e5e2a564b5c454b2f5a19c2f40298 Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Thu, 2 Sep 2010 19:22:35 +0300
Subject: [PATCH] xz: Make setting a preset override a custom filter chain.

This is more logical behavior than ignoring preset level
options once a custom filter chain has been specified.
---
 src/xz/coder.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/xz/coder.c b/src/xz/coder.c
index af49f430..841f63a4 100644
--- a/src/xz/coder.c
+++ b/src/xz/coder.c
@@ -67,6 +67,15 @@ extern void
 coder_set_preset(size_t new_preset)
 {
 	preset_number = new_preset;
+
+	// Setting a preset makes us forget a possibly defined custom
+	// filter chain.
+	while (filters_count > 0) {
+		--filters_count;
+		free(filters[filters_count].options);
+		filters[filters_count].options = NULL;
+	}
+
 	return;
 }