initial buildroot for linux 5.15

package/dbus-cpp/0001-gcc4.7.patch

@@ -0,0 +1,17 @@
+Fix build failure with gcc 4.7+
+From bugtracker: http://sourceforge.net/p/dbus-cplusplus/patches/13/
+
+Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
+
+diff --git a/include/dbus-c++/eventloop-integration.h b/include/dbus-c++/eventloop-integration.h
+index 1b0302e..3e44304 100644
+--- a/include/dbus-c++/eventloop-integration.h
++++ b/include/dbus-c++/eventloop-integration.h
+@@ -26,6 +26,7 @@
+ #define __DBUSXX_EVENTLOOP_INTEGRATION_H
+ 
+ #include <errno.h>
++#include <unistd.h>
+ #include "api.h"
+ #include "dispatcher.h"
+ #include "util.h"