From 87434fc38fafcd9ec49c2cdec2bbf7f25e46820c Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Mon, 13 Jul 2009 10:46:20 -0400
Subject: [PATCH] BUG: Teach UntarFile to delete dir on error

When tarball extraction fails we should still cleanup the temporary
extraction directory.  Otherwise the next attempt will create a new
directory and the first one will never be removed.
---
 Modules/UntarFile.cmake | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Modules/UntarFile.cmake b/Modules/UntarFile.cmake
index 9f8e4df6a..df33db8d3 100644
--- a/Modules/UntarFile.cmake
+++ b/Modules/UntarFile.cmake
@@ -59,6 +59,7 @@ execute_process(COMMAND ${CMAKE_COMMAND} -E tar ${args} ${filename}
   RESULT_VARIABLE rv)
 
 if(NOT rv EQUAL 0)
+  file(REMOVE_RECURSE "${ut_dir}")
   message(FATAL_ERROR "error: untar of '${filename}' failed")
 endif()