#-------------------------------------------------------------------------------
macro (BASIC_SETTINGS varname)
  string (TOUPPER ${varname} EXAMPLE_PACKAGE_VARNAME)
  string (TOLOWER ${varname} EXAMPLE_VARNAME)
  set (H5${EXAMPLE_PACKAGE_VARNAME}_PACKAGE "h5${EXAMPLE_VARNAME}")
  set (H5${EXAMPLE_PACKAGE_VARNAME}_PACKAGE_NAME "h5${EXAMPLE_VARNAME}")
  string (TOUPPER ${H5${EXAMPLE_PACKAGE_VARNAME}_PACKAGE_NAME} EXAMPLE_PACKAGE_NAME)
  string (TOLOWER ${H5${EXAMPLE_PACKAGE_VARNAME}_PACKAGE_NAME} EXAMPLE_NAME)
  set (CMAKE_NO_SYSTEM_FROM_IMPORTED 1)

  #-----------------------------------------------------------------------------
  # Define some CMake variables for use later in the project
  #-----------------------------------------------------------------------------
  set (${EXAMPLE_PACKAGE_NAME}_RESOURCES_DIR           ${${EXAMPLE_PACKAGE_NAME}_SOURCE_DIR}/config/cmake)
  set (${EXAMPLE_PACKAGE_NAME}_SRC_DIR                 ${${EXAMPLE_PACKAGE_NAME}_SOURCE_DIR}/src)

  #-----------------------------------------------------------------------------
  # Setup output Directories
  #-----------------------------------------------------------------------------
  if (NOT ${EXAMPLE_PACKAGE_NAME}_EXTERNALLY_CONFIGURED)
    set (CMAKE_RUNTIME_OUTPUT_DIRECTORY
        ${PROJECT_BINARY_DIR}/bin CACHE PATH "Single Directory for all Executables."
    )
    set (CMAKE_LIBRARY_OUTPUT_DIRECTORY
        ${PROJECT_BINARY_DIR}/bin CACHE PATH "Single Directory for all Libraries"
    )
    set (CMAKE_ARCHIVE_OUTPUT_DIRECTORY
        ${PROJECT_BINARY_DIR}/bin CACHE PATH "Single Directory for all static libraries."
    )
    set (CMAKE_Fortran_MODULE_DIRECTORY
        ${PROJECT_BINARY_DIR}/bin CACHE PATH "Single Directory for all fortran modules."
    )
    get_property(_isMultiConfig GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
    if(_isMultiConfig)
      set (CMAKE_TEST_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_BUILD_TYPE})
      set (CMAKE_PDB_OUTPUT_DIRECTORY
          ${PROJECT_BINARY_DIR}/bin CACHE PATH "Single Directory for all pdb files."
      )
    else ()
      set (CMAKE_TEST_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
    endif ()
  else ()
    # if we are externally configured, but the project uses old cmake scripts
    # this may not be set
    if (NOT CMAKE_RUNTIME_OUTPUT_DIRECTORY)
      set (CMAKE_RUNTIME_OUTPUT_DIRECTORY ${EXECUTABLE_OUTPUT_PATH})
    endif ()
  endif ()

  #-----------------------------------------------------------------------------
  # Option to use Shared/Static libs, default is static
  #-----------------------------------------------------------------------------
  set (LIB_TYPE STATIC)
  if (BUILD_SHARED_LIBS)
    set (LIB_TYPE SHARED)
  endif ()
  set (CMAKE_POSITION_INDEPENDENT_CODE ON)

  if (MSVC)
    set (CMAKE_MFC_FLAG 0)
  endif ()

  set (CMAKE_C_STANDARD 99)
  set (CMAKE_C_STANDARD_REQUIRED TRUE)

  set (CMAKE_CXX_STANDARD 98)
  set (CMAKE_CXX_STANDARD_REQUIRED TRUE)
  set (CMAKE_CXX_EXTENSIONS OFF)

  #-----------------------------------------------------------------------------
  # Compiler specific flags : Shouldn't there be compiler tests for these
  #-----------------------------------------------------------------------------
  if (CMAKE_COMPILER_IS_GNUCC)
    set (CMAKE_C_FLAGS "${CMAKE_ANSI_CFLAGS} ${CMAKE_C_FLAGS}")
  endif ()
  if (CMAKE_COMPILER_IS_GNUCXX)
    set (CMAKE_CXX_FLAGS "${CMAKE_ANSI_CFLAGS} ${CMAKE_CXX_FLAGS}")
  endif ()

  #-----------------------------------------------------------------------------
  # This is in here to help some of the GCC based IDES like Eclipse
  # and code blocks parse the compiler errors and warnings better.
  #-----------------------------------------------------------------------------
  if (CMAKE_COMPILER_IS_GNUCC)
    set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fmessage-length=0")
  endif ()
  if (CMAKE_COMPILER_IS_GNUCXX)
    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fmessage-length=0")
  endif ()

  #-----------------------------------------------------------------------------
  # Option to allow the user to disable compiler warnings
  #-----------------------------------------------------------------------------
  option (HDF_DISABLE_COMPILER_WARNINGS "Disable compiler warnings" OFF)
  if (HDF_DISABLE_COMPILER_WARNINGS)
    # MSVC uses /w to suppress warnings.  It also complains if another
    # warning level is given, so remove it.
    if (MSVC)
      set (HDF_WARNINGS_BLOCKED 1)
      string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
      set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /w")
      string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
      set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /w")
    endif ()
    if (WIN32)
      add_definitions (-D_CRT_SECURE_NO_WARNINGS)
    endif ()
    # Borland uses -w- to suppress warnings.
    if (BORLAND)
     set (HDF_WARNINGS_BLOCKED 1)
      set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w-")
    endif ()

    # Most compilers use -w to suppress warnings.
    if (NOT HDF_WARNINGS_BLOCKED)
      set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w")
      set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -w")
    endif ()
  endif ()

  #-----------------------------------------------------------------------------
  # Set includes needed for build
  #-----------------------------------------------------------------------------
  set (${EXAMPLE_PACKAGE_NAME}_INCLUDES_BUILD_TIME
      ${${EXAMPLE_PACKAGE_NAME}_SRC_DIR} ${${EXAMPLE_PACKAGE_NAME}_BINARY_DIR}
  )

  #-----------------------------------------------------------------------------
  # Option to build JAVA examples
  #-----------------------------------------------------------------------------
  option (HDF_BUILD_JAVA "Build JAVA support" OFF)
  if (HDF_BUILD_JAVA)
    find_package (Java)
    INCLUDE_DIRECTORIES (
        ${JAVA_INCLUDE_PATH}
        ${JAVA_INCLUDE_PATH2}
    )

    include (${${EXAMPLE_PACKAGE_NAME}_RESOURCES_DIR}/UseJava.cmake)
  endif ()
endmacro ()

macro (HDF5_SUPPORT)
  set (CMAKE_MODULE_PATH ${${EXAMPLE_PACKAGE_NAME}_RESOURCES_DIR} ${CMAKE_MODULE_PATH})
  option (USE_SHARED_LIBS "Use Shared Libraries" ON)

  if (NOT H5EX_HDF5_HEADER)
    if (USE_SHARED_LIBS)
      set (FIND_HDF_COMPONENTS C shared)
    else ()
      set (FIND_HDF_COMPONENTS C static)
      set (HDF_BUILD_JAVA OFF CACHE BOOL "Build Java support" FORCE)
      message (STATUS "Using static HDF5 - disable build of Java examples")
    endif ()
    if (HDF_BUILD_FORTRAN)
      set (FIND_HDF_COMPONENTS ${FIND_HDF_COMPONENTS} Fortran)
    endif ()
    if (HDF_BUILD_JAVA)
      set (FIND_HDF_COMPONENTS ${FIND_HDF_COMPONENTS} Java)
      set (HDF5_Java_FOUND 1) #default setting for 1.10.1 and earlier
    endif ()
    message (STATUS "HDF5 find comps: ${FIND_HDF_COMPONENTS}")
    set (SEARCH_PACKAGE_NAME ${HDF5_PACKAGE_NAME})

    find_package (HDF5 NAMES ${SEARCH_PACKAGE_NAME} COMPONENTS ${FIND_HDF_COMPONENTS})
    message (STATUS "HDF5 C libs:${HDF5_FOUND} static:${HDF5_static_C_FOUND} and shared:${HDF5_shared_C_FOUND}")
    message (STATUS "HDF5 Fortran libs: static:${HDF5_static_Fortran_FOUND} and shared:${HDF5_shared_Fortran_FOUND}")
    message (STATUS "HDF5 Java libs: ${HDF5_Java_FOUND}")
    if (HDF5_FOUND)
      if (USE_SHARED_LIBS)
        if (NOT TARGET ${HDF5_NAMESPACE}h5dump-shared)
          add_executable (${HDF5_NAMESPACE}h5dump-shared IMPORTED)
        endif ()
        set (H5EX_HDF5_DUMP_EXECUTABLE $<TARGET_FILE:${HDF5_NAMESPACE}h5dump-shared>)
      else ()
        if (NOT TARGET ${HDF5_NAMESPACE}h5dump)
          add_executable (${HDF5_NAMESPACE}h5dump IMPORTED)
        endif()
        set (H5EX_HDF5_DUMP_EXECUTABLE $<TARGET_FILE:${HDF5_NAMESPACE}h5dump>)
      endif()

      if (NOT HDF5_static_C_FOUND AND NOT HDF5_shared_C_FOUND)
        #find library from non-dual-binary package
        set (FIND_HDF_COMPONENTS C)
        if (HDF_BUILD_FORTRAN)
          set (FIND_HDF_COMPONENTS ${FIND_HDF_COMPONENTS} Fortran)
        endif ()
        if (HDF_BUILD_JAVA)
          set (FIND_HDF_COMPONENTS ${FIND_HDF_COMPONENTS} Java)
        endif ()
        message (STATUS "HDF5 find comps: ${FIND_HDF_COMPONENTS}")

        find_package (HDF5 NAMES ${SEARCH_PACKAGE_NAME} COMPONENTS ${FIND_HDF_COMPONENTS})
        message (STATUS "HDF5 libs:${HDF5_FOUND} C:${HDF5_C_FOUND} Fortran:${HDF5_Fortran_FOUND} Java:${HDF5_Java_FOUND}")
        set (H5EX_HDF5_LINK_LIBS ${H5EX_HDF5_LINK_LIBS} ${HDF5_LIBRARIES})
        if (HDF5_BUILD_SHARED_LIBS)
          add_definitions (-DH5_BUILT_AS_DYNAMIC_LIB)
        else ()
          add_definitions (-DH5_BUILT_AS_STATIC_LIB)
        endif ()
        if (USE_SHARED_LIBS AND WIN32)
          set_property (TARGET ${HDF5_NAMESPACE}h5dump PROPERTY IMPORTED_LOCATION "${HDF5_TOOLS_DIR}/h5dumpdll")
        else ()
          set_property (TARGET ${HDF5_NAMESPACE}h5dump PROPERTY IMPORTED_LOCATION "${HDF5_TOOLS_DIR}/h5dump")
        endif ()
        if (HDF_BUILD_JAVA)
          set (CMAKE_JAVA_INCLUDE_PATH "${CMAKE_JAVA_INCLUDE_PATH};${HDF5_JAVA_INCLUDE_DIRS}")
          message (STATUS "HDF5 jars:${HDF5_JAVA_INCLUDE_DIRS}")
        endif ()
        set (H5EX_HDF5_DUMP_EXECUTABLE $<TARGET_FILE:${HDF5_NAMESPACE}h5dump>)
      else ()
        if (USE_SHARED_LIBS AND HDF5_shared_C_FOUND)
          set (H5EX_HDF5_LINK_LIBS ${H5EX_HDF5_LINK_LIBS} ${HDF5_C_SHARED_LIBRARY})
          set (HDF5_LIBRARY_PATH ${PACKAGE_PREFIX_DIR}/lib)
          set_property (TARGET ${HDF5_NAMESPACE}h5dump-shared PROPERTY IMPORTED_LOCATION "${HDF5_TOOLS_DIR}/h5dump-shared")
        else ()
          set (H5EX_HDF5_LINK_LIBS ${H5EX_HDF5_LINK_LIBS} ${HDF5_C_STATIC_LIBRARY})
          set_property (TARGET ${HDF5_NAMESPACE}h5dump PROPERTY IMPORTED_LOCATION "${HDF5_TOOLS_DIR}/h5dump")
        endif ()
        if (HDF_BUILD_FORTRAN AND ${HDF5_BUILD_FORTRAN})
          if (BUILD_SHARED_LIBS AND HDF5_shared_Fortran_FOUND)
            set (H5EX_HDF5_LINK_LIBS ${H5EX_HDF5_LINK_LIBS} ${HDF5_FORTRAN_SHARED_LIBRARY})
          elseif (HDF5_static_Fortran_FOUND)
            set (H5EX_HDF5_LINK_LIBS ${H5EX_HDF5_LINK_LIBS} ${HDF5_FORTRAN_STATIC_LIBRARY})
          else ()
            set (HDF_BUILD_FORTRAN OFF CACHE BOOL "Build FORTRAN support" FORCE)
            message (STATUS "HDF5 Fortran libs not found - disable build of Fortran examples")
          endif ()
        else ()
          set (HDF_BUILD_FORTRAN OFF CACHE BOOL "Build FORTRAN support" FORCE)
          message (STATUS "HDF5 Fortran libs not found - disable build of Fortran examples")
        endif ()
        if (HDF_BUILD_JAVA)
          if (${HDF5_BUILD_JAVA} AND HDF5_Java_FOUND)
            set (CMAKE_JAVA_INCLUDE_PATH "${CMAKE_JAVA_INCLUDE_PATH};${HDF5_JAVA_INCLUDE_DIRS}")
            message (STATUS "HDF5 jars:${HDF5_JAVA_INCLUDE_DIRS}}")
          else ()
            set (HDF_BUILD_JAVA OFF CACHE BOOL "Build Java support" FORCE)
            message (STATUS "HDF5 Java libs not found - disable build of Java examples")
          endif ()
        else ()
          set (HDF_BUILD_JAVA OFF CACHE BOOL "Build Java support" FORCE)
        endif ()
      endif ()
    else ()
      find_package (HDF5) # Legacy find
      #Legacy find_package does not set HDF5_TOOLS_DIR, so we set it here
      set (HDF5_TOOLS_DIR ${HDF5_LIBRARY_DIRS}/../bin)
      #Legacy find_package does not set HDF5_BUILD_SHARED_LIBS, so we set it here
      if (USE_SHARED_LIBS AND EXISTS "${HDF5_LIBRARY_DIRS}/libhdf5.so")
        set (HDF5_BUILD_SHARED_LIBS 1)
      else ()
        set (HDF5_BUILD_SHARED_LIBS 0)
      endif ()
      set (H5EX_HDF5_LINK_LIBS ${H5EX_HDF5_LINK_LIBS} ${HDF5_LIBRARIES})
      add_executable (${HDF5_NAMESPACE}h5dump IMPORTED)
      set_property (TARGET ${HDF5_NAMESPACE}h5dump PROPERTY IMPORTED_LOCATION "${HDF5_TOOLS_DIR}/h5dump")
      set (H5EX_HDF5_DUMP_EXECUTABLE $<TARGET_FILE:${HDF5_NAMESPACE}h5dump>)
    endif ()

    set (HDF5_PACKAGE_NAME ${SEARCH_PACKAGE_NAME})

    if (HDF5_FOUND)
      set (H5EX_HDF5_INCLUDE_DIRS ${HDF5_INCLUDE_DIR})
      set (H5EX_HDF5_HAVE_H5PUBCONF_H 1)
      set (H5EX_HDF5_HAVE_HDF5 1)
      set (H5EX_HDF5_HEADER "h5pubconf.h")
      message (STATUS "HDF5-${HDF5_VERSION_STRING} found: INC=${HDF5_INCLUDE_DIR} TOOLS=${HDF5_TOOLS_DIR}")
    else ()
      message (FATAL_ERROR " HDF5 is Required for HDF5 Examples")
    endif ()
  else ()
    # This project is being called from within another and HDF5 is already configured
    set (H5EX_HDF5_HAVE_H5PUBCONF_H 1)
    set (H5EX_HDF5_HAVE_HDF5 1)
    message (STATUS "HDF5-${HDF5_VERSION_STRING} used")
  endif ()
  if (HDF_BUILD_FORTRAN)
    list (APPEND H5EX_HDF5_INCLUDE_DIRS ${HDF5_INCLUDE_DIR_FORTRAN})
  endif ()
  message (STATUS "HDF5 link libs: ${H5EX_HDF5_LINK_LIBS} Includes: ${H5EX_HDF5_INCLUDE_DIRS}")

  if (USE_SHARED_LIBS)
    set (H5_LIB_TYPE SHARED)
  else ()
    set (H5_LIB_TYPE STATIC)
  endif ()

  #-----------------------------------------------------------------------------
  # Option to build filter examples
  #-----------------------------------------------------------------------------
  option (HDF_BUILD_FILTERS "Test filter support" OFF)
endmacro ()

#-------------------------------------------------------------------------------
# Purpose:
# Breaking down three numbered versions (x.y.z) into their components, and
# returning a major and minor version (xy).
#
# Parameters:
#     version  [in]  The version string.
#     xyapi    [out] A "majorminor" API version.
#     
macro (APIVersion version xyapi)
  string (REGEX REPLACE "(\-[0-9]+)" "" xyz ${version})
  message (VERBOSE "version=${version}")

  string (REGEX REPLACE "([0-9]+).[0-9]+.[0-9]+" "\\1" major ${xyz})
  string (REGEX REPLACE "[0-9]+.([0-9]+).[0-9]+" "\\1" minor ${xyz})
  string (REGEX REPLACE "[0-9]+.[0-9]+.([0-9]+)" "\\1" patch ${xyz})
  message (VERBOSE "major=${major} minor=${minor}")

  # Round up to the next major release if minor is odd-numbered
  math (EXPR rem "${minor}%2")
  if (NOT ${rem} STREQUAL "0")
    math (EXPR minor "${minor} + 1")
  endif ()

  set (${xyapi} "${major}${minor}")

  #-----------------------------------------------------------------------------
  # Option to use 1.6.x API
  #-----------------------------------------------------------------------------
  option (${EXAMPLE_VARNAME}_USE_16_API "Use the HDF5 1.6.x API" OFF)
  if (${EXAMPLE_VARNAME}_USE_16_API AND ${xyapi} GREATER 16)
    set (${xyapi} "16")
  endif ()

  #-----------------------------------------------------------------------------
  # Option to use 1.8.x API
  #-----------------------------------------------------------------------------
  option (${EXAMPLE_VARNAME}_USE_18_API "Use the HDF5 1.8.x API" OFF)
  if (${EXAMPLE_VARNAME}_USE_18_API AND ${xyapi} GREATER 18)
    set (${xyapi} "18")
  endif ()

  #-----------------------------------------------------------------------------
  # Option to use 1.10.x API
  #-----------------------------------------------------------------------------
  option (${EXAMPLE_VARNAME}_USE_110_API "Use the HDF5 1.10.x API" OFF)
  if (${EXAMPLE_VARNAME}_USE_110_API AND ${xyapi} GREATER 110)
    set (${xyapi} "110")
  endif ()

  #-----------------------------------------------------------------------------
  # Option to use 1.12.x API
  #-----------------------------------------------------------------------------
  option (${EXAMPLE_VARNAME}_USE_112_API "Use the HDF5 1.12.x API" OFF)
  if (${EXAMPLE_VARNAME}_USE_112_API AND ${xyapi} GREATER 112)
    set (${xyapi} "112")
  endif ()

  #-----------------------------------------------------------------------------
  # Option to use 1.14.x API
  #-----------------------------------------------------------------------------
  option (${EXAMPLE_VARNAME}_USE_114_API "Use the HDF5 1.14.x API" OFF)
  if (${EXAMPLE_VARNAME}_USE_114_API AND ${xyapi} GREATER 114)
    set (${xyapi} "114")
  endif ()

  #-----------------------------------------------------------------------------
  # Option to use 1.16.x API
  #-----------------------------------------------------------------------------
  option (${EXAMPLE_VARNAME}_USE_116_API "Use the HDF5 1.16.x API" OFF)
  if (${EXAMPLE_VARNAME}_USE_116_API AND ${xyapi} GREATER 116)
    set (${xyapi} "116")
  endif ()
endmacro ()