#------------------------------------------------------------------------------#
# Distributed under the OSI-approved Apache License, Version 2.0.  See
# accompanying file Copyright.txt for details.
#------------------------------------------------------------------------------#

cmake_minimum_required(VERSION 3.12)
project(ADIOS2HelloBPFWriteCReadExample)

if(NOT TARGET adios2_core)
  set(_components C)

  include(CheckLanguage)
  check_language(Fortran)
  if(CMAKE_Fortran_COMPILER)
    enable_language(Fortran)
  endif()
  if(CMAKE_Fortran_COMPILER_LOADED)
    list(APPEND _components Fortran)
  endif()

  find_package(MPI COMPONENTS ${_components})
  if(MPI_FOUND)
    # Workaround for various MPI implementations forcing the link of C++ bindings
    add_definitions(-DOMPI_SKIP_MPICXX -DMPICH_SKIP_MPICXX)

    list(APPEND _components MPI)
  endif()
  list(APPEND _components CXX)

  find_package(ADIOS2 REQUIRED COMPONENTS ${_components})
endif()

if (ADIOS2_HAVE_MPI)
  add_executable(adios2_hello_CppWriter CppWriter.cpp)
  target_link_libraries(adios2_hello_CppWriter adios2::cxx11_mpi MPI::MPI_CXX)
  install(TARGETS adios2_hello_CppWriter RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})

  add_executable(adios2_hello_CppReader CppReader.cpp)
  target_link_libraries(adios2_hello_CppReader adios2::cxx11_mpi MPI::MPI_CXX)
  install(TARGETS adios2_hello_CppReader RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})

  if(ADIOS2_HAVE_Fortran)
    add_executable(adios2_hello_FWriter FWriter.f90)
    target_link_libraries(adios2_hello_FWriter adios2::fortran_mpi MPI::MPI_Fortran)
    install(TARGETS adios2_hello_FWriter RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})

    add_executable(adios2_hello_FReader FReader.f90)
    target_link_libraries(adios2_hello_FReader adios2::fortran_mpi MPI::MPI_Fortran)
    install(TARGETS adios2_hello_FReader RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
  endif()
endif()