Possible fix for linking with new libdbus

libdbus_1_la-dbus-sysdeps-pthread.o): in function _dbus_platform_condvar_new':
undefined reference to pthread_condattr_setclock’

libs/ardouralsautil/request_device.c

@@ -27,6 +27,7 @@
 #include <string.h>
 #include <fcntl.h>
 #include <errno.h>
+#include <pthread.h>
 
 #include "ardouralsautil/reserve.h"
 

libs/ardouralsautil/wscript

@@ -45,6 +45,7 @@ def build(bld):
                 'request_device.c'
             ]
             obj.includes = ['.']
+            obj.cflags   = [ '-pthread' ]
             obj.target   = 'ardour-request-device'
             obj.uselib   = [ 'DBUS' ]
             obj.install_path = os.path.join(bld.env['LIBDIR'])