[gvfs] build: Fix out of tree build

[Ross Lagerwall <rossl src gnome org>]

commit 4729b3d25650e9031dcba88ce6ed69bf4a48adce
Author: Ross Lagerwall <rosslagerwall gmail com>
Date:   Mon Jan 26 22:40:43 2015 +0000

    build: Fix out of tree build
    
    https://bugzilla.gnome.org/show_bug.cgi?id=743551

 monitor/proxy/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/monitor/proxy/Makefile.am b/monitor/proxy/Makefile.am
index e2dc241..3b3c8db 100644
--- a/monitor/proxy/Makefile.am
+++ b/monitor/proxy/Makefile.am
@@ -34,6 +34,7 @@ libgioremote_volume_monitor_la_SOURCES =                              \
 libgioremote_volume_monitor_la_CFLAGS =                                        \
        -DG_LOG_DOMAIN=\"GVFS-RemoteVolumeMonitor\"                     \
        -I$(top_srcdir)/common                                          \
+       -I$(top_builddir)/common                                        \
        $(GLIB_CFLAGS)                                                  \
        -DGIO_MODULE_DIR=\"$(GIO_MODULE_DIR)\"                          \
        -DREMOTE_VOLUME_MONITORS_DIR=\"$(remote_volume_monitorsdir)\"   \