cabinet: Add initial tests for Extract.
diff --git a/configure.ac b/configure.ac
index 3db7272..eebf34c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1524,6 +1524,7 @@
 dlls/avicap32/Makefile
 dlls/avifil32/Makefile
 dlls/cabinet/Makefile
+dlls/cabinet/tests/Makefile
 dlls/capi2032/Makefile
 dlls/cards/Makefile
 dlls/cfgmgr32/Makefile