add gmshdg make rule

CMakeLists.txt

@@ -973,3 +973,6 @@ message("")
 
 mark_as_advanced(BISON FLEX GMP_LIB GMSH_EXTRA_VERSION HDF5_LIB MAKEINFO 
                  MED_LIB OCC_INC SZ_LIB TAUCS_LIB TEXI2PDF)
+
+add_executable(gmshdg EXCLUDE_FROM_ALL Solver/dgMainTest.cpp ${GMSH_SRC})
+target_link_libraries(gmshdg ${LINK_LIBRARIES})

Solver/dgMainTest.cc → Solver/dgMainTest.cpp

@@ -35,7 +35,7 @@ class dgConservationLawInitialCondition : public dgConservationLaw {
 };
 
 int main(int argc, char **argv){
-  GmshMergeFile("input/mesh1.msh");
+  GmshMergeFile("mesh1.msh");
   //GmshMergeFile("square2.msh");
   std::vector<MElement *> allTri=getAllTri(GModel::current());
   int order=1;