polyhedron_sample.c: add missing include

diff --git a/polyhedron_sample.c b/polyhedron_sample.c
index a377bde..05e0875 100644 (file)
--- a/polyhedron_sample.c
+++ b/polyhedron_sample.c
@@ -1,6 +1,7 @@
 #include <assert.h>
 #include "isl_sample.h"
 #include "isl_vec.h"
+#include "isl_map_private.h"
 
 int main(int argc, char **argv)
 {