cleanup of find_dependencies, removed PNG, removed error in...

cleanup of find_dependencies, removed PNG, removed error in extensions/preconditioner/CMakeLists.txt file

AMDiS/cmake/AMDiSConfig.cmake.in

@@ -21,6 +21,7 @@ find_dependency(MuParser REQUIRED)
 find_dependency(nanoflann)
 find_dependency(PugiXML)
 
+# if not component is specified, assume sequential
 if (NOT AMDiS_FIND_REQUIRED_SEQUENTIAL AND NOT AMDiS_FIND_REQUIRED_PARALLEL)
   set (AMDiS_FIND_REQUIRED_SEQUENTIAL 1)
 endif ()
@@ -29,12 +30,11 @@ endif ()
 if(AMDiS_FIND_REQUIRED_SEQUENTIAL AND NOT TARGET AMDiS::AMDiS-s)
   find_dependency(UMFPACK ${UMFPACK_VERSION_EXACT})
   find_dependency(HYPRE ${HYPRE_VERSION_EXACT})
-  #find_dependency(PNG ${PNG_VERSION_EXACT} QUIET)
   find_dependency(PETSc ${PETSc_VERSION_EXACT})
   find_dependency(MPI)
   include(AMDiSTargets-s OPTIONAL RESULT_VARIABLE AMDiS_SEQUENTIAL_FOUND)
   if (NOT AMDiS_SEQUENTIAL_FOUND)
-    # fallback to parallel version of sequential does not exist
+    # fallback to parallel version if sequential does not exist
     set(AMDiS_FIND_REQUIRED_PARALLEL 1)
   endif (NOT AMDiS_SEQUENTIAL_FOUND)
 endif()

AMDiS/cmake/find_dependencies.cmake.in

@@ -36,14 +36,6 @@ if (HYPRE_VERSION)
   set(HYPRE_VERSION_EXACT "${HYPRE_VERSION}" EXACT)
 endif (HYPRE_VERSION)
 
-if (NOT PNG_ROOT)
-  file(TO_CMAKE_PATH "@PNG_INCLUDE_DIR@/.." PNG_ROOT)
-endif (NOT PNG_ROOT)
-set(PNG_VERSION "@PNG_VERSION@")
-if (PNG_VERSION)
-  set(PNG_VERSION_EXACT "${PNG_VERSION}" EXACT)
-endif (PNG_VERSION)
-
 if (NOT ZLIB_ROOT)
   file(TO_CMAKE_PATH "@ZLIB_INCLUDE_DIR@/.." ZLIB_ROOT)
 endif (NOT ZLIB_ROOT)

AMDiS/src/extensions/preconditioner/CMakeLists.txt

@@ -5,12 +5,12 @@ if (ENABLE_PARALLEL_DOMAIN)
   list(APPEND AMDIS_EXTENSIONS_PRECONDITIONER_HEADERS
     PetscSolverPfc.h
     PetscSolverPfc_diag.h
-    PetscPreconNavierStokes2.h
+    PetscSolverNavierStokes2.h
   )
   list(APPEND AMDIS_EXTENSIONS_PRECONDITIONER_SOURCES
     PetscSolverPfc.cc
     PetscSolverPfc_diag.cc
-    PetscPreconNavierStokes2.cc
+    PetscSolverNavierStokes2.cc
   )
 elseif (ENABLE_SEQ_PETSC)
   list(APPEND AMDIS_EXTENSIONS_PRECONDITIONER_HEADERS