# HG changeset patch
# User Klaus Ethgen <Klaus@Ethgen.de>
# Date 1460640344 -3600
# Node ID a987ea1ea4f8591ec925f6f61b8c5efe356decbc
# Parent  38f6ecad0b5318c4d0cf0aeafe097ff8217e8d34
Work around GCC6

This problem is really annoying. Left shifting a value does not require
it to be positive in C. However, some specifications define that as
undefined behaviour.

Nevertheless, as used in this case it is perfectly fine and widely used
construct.

Closes #230, #378

diff -r 38f6ecad0b53 -r a987ea1ea4f8 src/typedefs.h
--- a/src/typedefs.h	Wed Apr 13 18:53:12 2016 +0100
+++ b/src/typedefs.h	Thu Apr 14 14:25:44 2016 +0100
@@ -161,7 +161,7 @@
 	CHANGE_WARN_CHANGED_EXT        = 1 << 3,
 	CHANGE_WARN_UNSAVED_META       = 1 << 4,
 	CHANGE_WARN_NO_WRITE_PERM_DEST_DIR  = 1 << 5,
-	CHANGE_ERROR_MASK              = (~0) << 8, /* the values below are fatal errors */
+	CHANGE_ERROR_MASK              = (~0U) << 8, /* the values below are fatal errors */
 	CHANGE_NO_READ_PERM            = 1 << 8,
 	CHANGE_NO_WRITE_PERM_DIR       = 1 << 9,
 	CHANGE_NO_DEST_DIR             = 1 << 10,