$OpenBSD: patch-lib_Interface_CMakeLists_txt,v 1.1 2017/08/21 07:03:10 jca Exp $

  https://github.com/stp/stp/commit/b233823ee16e590811e14c92fe3e9d246e5e4d30

Index: lib/Interface/CMakeLists.txt
--- lib/Interface/CMakeLists.txt.orig
+++ lib/Interface/CMakeLists.txt
@@ -29,6 +29,7 @@ add_library(cppinterface OBJECT
 )
 
 add_dependencies(cinterface ASTKind_header)
+add_dependencies(cppinterface ASTKind_header)
 
 # FIXME: Remove this
 # For legacy reasons make the interface header files available in include/stp/ in the build directory
