Mark BROKEN: fails to build

In file included from metaLevelOpSymbol.cc:100:
In file included from ./descentFunctions.cc:584:
In file included from ../../src/Mixfix/variableGenerator.hh:33:
/usr/local/include/cvc4/expr/expr_manager.h:47:10: fatal error: 'cvc4_public.h' file not found
#include "cvc4_public.h"

Reported by: pkg-fallout