Make experimental examples option to build

CMakeLists.txt

@@ -111,7 +111,8 @@ add_subdirectory(bindings)
 #------------------------------------------------------------------------------#
 # Examples
 #------------------------------------------------------------------------------#
-option(ADIOS2_BUILD_EXAMPLES "Build ADIOS examples" ON)
+option(ADIOS2_BUILD_EXAMPLES "Build examples" ON)
+option(ADIOS2_BUILD_EXAMPLES_EXPERIMENTAL "Build experimental examples" OFF)
 if(ADIOS2_BUILD_EXAMPLES)
   add_subdirectory(examples)
 endif()

examples/CMakeLists.txt

@@ -6,4 +6,7 @@
 add_subdirectory(basics)
 add_subdirectory(hello)
 add_subdirectory(heatTransfer)
-add_subdirectory(experimental)
+
+if(ADIOS2_BUILD_EXAMPLES_EXPERIMENTAL)
+  add_subdirectory(experimental)
+endif()

examples/experimental/CMakeLists.txt

@@ -6,3 +6,5 @@
 if(ADIOS2_HAVE_ADIOS1)
   add_subdirectory(multistep)
 endif()
+
+add_subdirectory(runtimeconfig)

examples/experimental/runtimeconfig/CMakeLists.txt

+add_subdirectory(hello)

examples/experimental/runtimeconfig/hello/CMakeLists.txt

+if(ADIOS2_HAVE_MPI)
+  find_package(MPI COMPONENTS C REQUIRED)
+
+  add_executable(helloBPWriterXML helloBPWriterXML.cpp)
+  target_include_directories(helloBPWriterXML PRIVATE ${MPI_C_INCLUDE_PATH})
+  target_link_libraries(helloBPWriterXML ${MPI_C_LIBRARIES})
+else()
+  add_executable(helloBPWriterXML helloBPWriterXML_nompi.cpp)
+endif()
+
+target_link_libraries(helloBPWriterXML adios2)