Remove N.S. test exe from all & don't add to ctest

 Make it so that NS test can be built on supported platforms, but it
 must be specifically requested, i.e., it is excluded from the "all"
 target. In addition, remove it from the list of tests run by ctest.

 Fixes #297

Author: zbeekman

CMakeLists.txt

@@ -424,12 +424,6 @@ if(opencoarrays_aware_compiler)
   add_mpi_test(coarray_burgers_pde 2 ${tests_root}/integration/pde_solvers/coarrayBurgers/coarray_burgers_pde)
   add_mpi_test(co_heat 2 ${tests_root}/integration/pde_solvers/coarrayHeatSimplified/co_heat)
   add_mpi_test(asynchronous_hello_world 3 ${tests_root}/integration/events/asynchronous_hello_world)
-  if ( ("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "x86_64") AND ("${CMAKE_SYSTEM_NAME}" MATCHES "Linux") )
-    if ( (NOT (DEFINED ENV{TRAVIS})) AND (NOT SKIP_ASSEMBLY_DEPS) )
-      add_mpi_test(coarray_navier_stokes 2 ${tests_root}/integration/pde_solvers/navier-stokes/coarray_navier_stokes)
-      set_property(TEST coarray_navier_stokes PROPERTY PASS_REGULAR_EXPRESSION "Test passed.")
-    endif()
-  endif()
 
   # Regression tests based on reported issues
   if(gfortran_compiler AND (CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL 7.0.0))

src/tests/integration/pde_solvers/navier-stokes/CMakeLists.txt

@@ -11,6 +11,7 @@ if ( ("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "x86_64") AND ("${CMAKE_SYSTEM_NAME}"
     add_executable( coarray_navier_stokes
       coarray-shear_coll.F90
       ${walltime_o}
+      EXCLUDE_FROM_ALL
     )
     target_link_libraries(coarray_navier_stokes OpenCoarrays ${fft_library})
   endif()