=== modified file 'configure.ac'
--- configure.ac    2014-07-19 06:55:58 +0000
+++ configure.ac    2014-07-19 15:52:25 +0000
@@ -198,6 +198,7 @@
 data/Makefile
 vapi/Makefile
 plugins/Makefile
+plugins/alternate-alt-tab/Makefile
 plugins/notify/Makefile
 plugins/zoom/Makefile
 po/Makefile.in

=== modified file 'plugins/Makefile.am'
--- plugins/Makefile.am 2014-07-18 08:24:26 +0000
+++ plugins/Makefile.am 2014-07-19 15:52:11 +0000
@@ -1,4 +1,5 @@
 SUBDIRS = \
+   alternate-alt-tab \
    notify \
    zoom \
    $(NULL)