[numerics] fix lcp_path without PATH ...
#include <stdio.h>
#include "SiconosConfig.h"
+#include "LinearComplementarityProblem.h"
+#include "SolverOptions.h"
+
#ifdef HAVE_PATHFERRIS
#include <stdlib.h>
#include <string.h>
#include "SimpleLCP.h"
#include "numerics_verbose.h"
-#include "LinearComplementarityProblem.h"
-#include "SolverOptions.h"
#include "NumericsMatrix.h"
#endif /*HAVE_PATHFERRIS*/
