diff -Nru gismo-201807161432/cmake/gismoUse.cmake gismo-201807171431/cmake/gismoUse.cmake
--- gismo-201807161432/cmake/gismoUse.cmake	2018-07-16 14:32:32.000000000 +0000
+++ gismo-201807171431/cmake/gismoUse.cmake	2018-07-17 14:31:54.000000000 +0000
@@ -26,7 +26,7 @@
     get_filename_component(FNAME ${FILE} NAME_WE) # name without extension
     add_test(${FNAME} ${CMAKE_BINARY_DIR}/bin/${FNAME} )
     #message(STATUS "exec (pure template): ${FNAME}")
-    add_executable(${FNAME} ${FILE} ${gismo_SOURCES} ${gismo_EXTENSIONS})
+    add_executable(${FNAME} ${FILE} ${gismo_SOURCES} ${gismo_EXTENSIONS} ${gismo_dev_EXTENSIONS})
     target_link_libraries(${FNAME} gismo_static)
     if(UNIX AND NOT APPLE)
     	target_link_libraries(${FNAME} dl)
diff -Nru gismo-201807161432/debian/changelog gismo-201807171431/debian/changelog
--- gismo-201807161432/debian/changelog	2018-07-16 14:32:33.000000000 +0000
+++ gismo-201807171431/debian/changelog	2018-07-17 14:31:54.000000000 +0000
@@ -1,8 +1,8 @@
-gismo (201807161432-1090873~ubuntu17.10.1) artful; urgency=low
+gismo (201807171431-2868e0b~ubuntu17.10.1) artful; urgency=low
 
   * Auto build.
 
- -- Gismo <filiatra@gmail.com>  Mon, 16 Jul 2018 14:32:33 +0000
+ -- Gismo <filiatra@gmail.com>  Tue, 17 Jul 2018 14:31:54 +0000
 
 gismo (20150926-ppa) trusty; urgency=medium
 
diff -Nru gismo-201807161432/debian/git-build-recipe.manifest gismo-201807171431/debian/git-build-recipe.manifest
--- gismo-201807161432/debian/git-build-recipe.manifest	2018-07-16 14:32:33.000000000 +0000
+++ gismo-201807171431/debian/git-build-recipe.manifest	2018-07-17 14:31:54.000000000 +0000
@@ -1,3 +1,3 @@
-# git-build-recipe format 0.4 deb-version 201807161432-1090873
-lp:g+smo git-commit:1090873b3d8a858fb72b8418d6dc75df3ca829bb
+# git-build-recipe format 0.4 deb-version 201807171431-2868e0b
+lp:g+smo git-commit:2868e0b15a50aa732870bf12592e41fbef47c468
 nest master lp:~g+smo/+git/debian debian git-commit:05f94eeb95748159cdd98418fd4ceba85c59b211
diff -Nru gismo-201807161432/src/gsUtils/gsCombinatorics.h gismo-201807171431/src/gsUtils/gsCombinatorics.h
--- gismo-201807161432/src/gsUtils/gsCombinatorics.h	2018-07-16 14:32:32.000000000 +0000
+++ gismo-201807171431/src/gsUtils/gsCombinatorics.h	2018-07-17 14:31:54.000000000 +0000
@@ -595,6 +595,26 @@
     while (i!=dd);
 }
 
+/// \brief Computes the rotation matrix
+/// implied by a permutation \a perm of the cube directions
+/// plus a relocation \a flip
+///
+/// \param[in] flip the relocation of the cube vertices
+/// flip[k]==true  : the coordinate \em k is not relocated
+/// flip[k]==false : the coordinate \em k is relocated
+/// \param[in] perm the permutation of the directions (0,..,d-1)
+/// \param[out] result A rotation matrix
+/// \ingroup combinatorics
+template <int d>
+void cubeIsometryMatrix ( const gsVector<bool,d>    & flip,
+                          const gsVector<index_t,d> & perm,
+                          gsMatrix<int,d,d> & result)
+{
+    result.setZero(d,d);
+    for(int i = 0; i < d; ++i)
+        result(perm(i),i) = (flip(perm(i)) ? 1 : -1);
+}
+
 /// \brief Construct first composition of \a sum into \a dim integers
 /// \ingroup combinatorics
 template<class Vec>