diff --git a/lemon/config.h.cmake b/lemon/config.h.cmake
--- a/lemon/config.h.cmake
+++ b/lemon/config.h.cmake
@@ -3,3 +3,5 @@
 #cmakedefine HAVE_MIP 1
 #cmakedefine HAVE_GLPK 1
 #cmakedefine HAVE_CPLEX 1
+#cmakedefine HAVE_CLP 1
+#cmakedefine HAVE_CBC 1