$OpenBSD: patch-src_kernel_cpp,v 1.2 2015/03/21 19:47:36 jca Exp $

find_first_of returns npos, which is a size_t.

--- src/kernel.cpp.orig	Tue Feb 24 12:35:42 2015
+++ src/kernel.cpp	Tue Feb 24 12:36:09 2015
@@ -832,7 +832,7 @@ void Kernel::handlePropertyNotify(XPropertyEvent *even
                     Atoms::WMI_ACTIONCMD, &actionCmd))
         {
             string bind, arg;
-            unsigned int pos = actionCmd.find_first_of('+');
+            size_t pos = actionCmd.find_first_of('+');
             if (pos != string::npos) {
                 bind = actionCmd.substr(0, pos);
                 arg = actionCmd.substr(pos + 1);
