netcdf-c/CMakeLists.txt

## This is a CMake file, part of Unidata's netCDF package.
# Copyright 2012-2018, see the COPYRIGHT file for more information.
#

##################################
# Set Project Properties
##################################

#Minimum required CMake Version
cmake_minimum_required(VERSION 3.6.1)

#Project Name
project(netCDF C)
set(PACKAGE "netCDF" CACHE STRING "")

#####
# Version Info:
#
# Release Version
# Library Version
# SO Version
#
# SO Version is computed from library version. See:
# http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning
#####

SET(NC_VERSION_MAJOR 4)
SET(NC_VERSION_MINOR 6)
SET(NC_VERSION_PATCH 2)
SET(NC_VERSION_NOTE "-development")
SET(netCDF_VERSION ${NC_VERSION_MAJOR}.${NC_VERSION_MINOR}.${NC_VERSION_PATCH}${NC_VERSION_NOTE})
SET(VERSION ${netCDF_VERSION})
SET(NC_VERSION ${netCDF_VERSION})
SET(netCDF_LIB_VERSION 13)
SET(netCDF_SO_VERSION 13)
SET(PACKAGE_VERSION ${VERSION})

# Get system configuration, Use it to determine osname, os release, cpu. These
# will be used when committing to CDash.
find_program(UNAME NAMES uname)
IF(UNAME)
  macro(getuname name flag)
    exec_program("${UNAME}" ARGS "${flag}" OUTPUT_VARIABLE "${name}")
  endmacro(getuname)
  getuname(osname -s)
  getuname(osrel  -r)
  getuname(cpu    -m)
  set(TMP_BUILDNAME "${osname}-${osrel}-${cpu}")
ENDIF()

###
# Allow for some customization of the buildname.
# This will make it easier to identify different builds,
# based on values passed from command line/shell scripts.
#
# For ctest scripts, we can use CTEST_BUILD_NAME.
###

SET(BUILDNAME_PREFIX "" CACHE STRING "")
SET(BUILDNAME_SUFFIX "" CACHE STRING "")

IF(BUILDNAME_PREFIX)
  SET(TMP_BUILDNAME "${BUILDNAME_PREFIX}-${TMP_BUILDNAME}")
ENDIF()

IF(BUILDNAME_SUFFIX)
  SET(TMP_BUILDNAME "${TMP_BUILDNAME}-${BUILDNAME_SUFFIX}")
ENDIF()

IF(NOT BUILDNAME)
  SET(BUILDNAME "${TMP_BUILDNAME}" CACHE STRING "Build name variable for CDash")
ENDIF()
###
# End BUILDNAME customization.
###

# For CMAKE_INSTALL_LIBDIR
INCLUDE(GNUInstallDirs)

IF(MSVC)
  SET(GLOBAL PROPERTY USE_FOLDERS ON)
ENDIF()

#Add custom CMake Module
SET(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/modules/"
  CACHE INTERNAL "Location of our custom CMake modules.")

# auto-configure style checks, other CMake modules.
INCLUDE(CheckLibraryExists)
INCLUDE(CheckIncludeFile)
INCLUDE(CheckIncludeFiles)
INCLUDE(CheckTypeSize)
INCLUDE(CheckFunctionExists)
INCLUDE(CheckCXXSourceCompiles)
INCLUDE(CheckCSourceCompiles)
INCLUDE(TestBigEndian)
INCLUDE(CheckSymbolExists)
INCLUDE(GetPrerequisites)

INCLUDE(CheckCCompilerFlag)
FIND_PACKAGE(PkgConfig QUIET)

# A check to see if the system is big endian
TEST_BIG_ENDIAN(BIGENDIAN)
IF(${BIGENDIAN})
  SET(WORDS_BIGENDIAN "1")
ENDIF(${BIGENDIAN})

# A macro to check if a C linker supports a particular flag.
MACRO(CHECK_C_LINKER_FLAG M_FLAG M_RESULT)
  SET(T_REQ_FLAG "${CMAKE_REQUIRED_FLAGS}")
  SET(CMAKE_REQUIRED_FLAGS "${M_FLAG}")
  CHECK_C_SOURCE_COMPILES("int main() {return 0;}" ${M_RESULT})
  SET(CMAKE_REQUIRED_FLAGS "${T_REQ_FLAG}")
ENDMACRO()

# Enable 'dist and distcheck'.
# File adapted from http://ensc.de/cmake/FindMakeDist.cmake
FIND_PACKAGE(MakeDist)
# End 'enable dist and distcheck'

# Set the build type.
IF(NOT CMAKE_BUILD_TYPE)
  SET(CMAKE_BUILD_TYPE DEBUG CACHE STRING "Choose the type of build, options are: None, Debug, Release."
    FORCE)
ENDIF()

# Set build type uppercase
STRING(TOUPPER ${CMAKE_BUILD_TYPE} CMAKE_BUILD_TYPE)

# Determine the configure date.

IF(DEFINED ENV{SOURCE_DATE_EPOCH})
	EXECUTE_PROCESS(
	  COMMAND "date" "-u" "-d" "@$ENV{SOURCE_DATE_EPOCH}"
	  OUTPUT_VARIABLE CONFIG_DATE
	  )
ELSE()
	EXECUTE_PROCESS(
	  COMMAND date
	  OUTPUT_VARIABLE CONFIG_DATE
	  )
ENDIF()
IF(CONFIG_DATE)
	string(STRIP ${CONFIG_DATE} CONFIG_DATE)
ENDIF()
##
# Allow for extra dependencies.
##

SET(EXTRA_DEPS "")

################################
# End Project Properties
################################


################################
# Set CTest Properties
################################



ENABLE_TESTING()
INCLUDE(CTest)

# Copy the CTest customization file into binary directory, as required.
FILE(COPY ${CMAKE_SOURCE_DIR}/CTestCustom.cmake DESTINATION ${CMAKE_BINARY_DIR})

# Set Memory test program for non-MSVC based builds.
# Assume valgrind for now.
IF(NOT MSVC)
  SET(CTEST_MEMORYCHECK_COMMAND valgrind CACHE STRING "")
ENDIF()

# Set variable to define the build type.
INCLUDE(GenerateExportHeader)

################################
# End CTest Properties
################################


################################
# Compiler and Linker Configuration
################################

##
# Default building shared libraries.
# BUILD_SHARED_LIBS is provided by/used by
# CMake directly.
##
OPTION(BUILD_SHARED_LIBS "Configure netCDF as a shared library." ON)
IF(BUILD_SHARED_LIBS)
  SET(CMAKE_POSITION_INDEPENDENT_CODE ON)
ENDIF()

OPTION(NC_FIND_SHARED_LIBS "Find dynamically-built versions of dependent libraries" ${BUILD_SHARED_LIBS})

##
# We've had a request to allow for non-versioned shared libraries.
# This seems reasonable enough to accommodate.  See
# https://github.com/Unidata/netcdf-c/issues/228 for more info.
##
OPTION(ENABLE_SHARED_LIBRARY_VERSION "Encode the library SO version in the file name of the generated library file." ON)

# Set some default linux gcc & apple compiler options for
# debug builds.
IF(CMAKE_COMPILER_IS_GNUCC OR APPLE)
  OPTION(ENABLE_COVERAGE_TESTS "Enable compiler flags needed to perform coverage tests." OFF)
  OPTION(ENABLE_CONVERSION_WARNINGS "Enable warnings for implicit conversion from 64 to 32-bit datatypes." ON)
  OPTION(ENABLE_LARGE_FILE_TESTS "Enable large file tests." OFF)

  # Debugging flags
  SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wall")

  # Check to see if -Wl,--no-undefined is supported.
  CHECK_C_LINKER_FLAG("-Wl,--no-undefined" LIBTOOL_HAS_NO_UNDEFINED)

  IF(LIBTOOL_HAS_NO_UNDEFINED)
    SET(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_SHARED_LINKER_FLAGS_DEBUG} -Wl,--no-undefined")
  ENDIF()
  SET(CMAKE_REQUIRED_FLAGS "${TMP_CMAKE_REQUIRED_FLAGS}")

  # Coverage tests need to have optimization turned off.
  IF(ENABLE_COVERAGE_TESTS)
    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
    SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fprofile-arcs -ftest-coverage")
    MESSAGE(STATUS "Coverage Tests: On.")
  ENDIF()

    # Warnings for 64-to-32 bit conversions.
  IF(ENABLE_CONVERSION_WARNINGS)
    CHECK_C_COMPILER_FLAG(-Wconversion CC_HAS_WCONVERSION)
    CHECK_C_COMPILER_FLAG(-Wshorten-64-to-32 CC_HAS_SHORTEN_64_32)

    IF(CC_HAS_SHORTEN_64_32)
      SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wshorten-64-to-32")
    ENDIF()
    IF(CC_HAS_WCONVERSION)
      SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wconversion")
    ENDIF()

  ENDIF(ENABLE_CONVERSION_WARNINGS)

ENDIF(CMAKE_COMPILER_IS_GNUCC OR APPLE)

# End default linux gcc & apple compiler options.

ADD_DEFINITIONS()

# Suppress CRT Warnings.
# Only necessary for Windows
IF(MSVC)
  ADD_DEFINITIONS(-D_CRT_SECURE_NO_WARNINGS)
ENDIF()

#####
# System inspection checks
#####
INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/include)
INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/oc2)
INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/libsrc)
SET(CMAKE_REQUIRED_INCLUDES ${CMAKE_SOURCE_DIR}/libsrc)

################################
# End Compiler Configuration
################################



##
# Configuration for post-install RPath
# Adapted from http://www.cmake.org/Wiki/CMake_RPATH_handling
##
IF(NOT MSVC)
  # use, i.e. don't skip the full RPATH for the build tree
  SET(CMAKE_SKIP_BUILD_RPATH  FALSE)

  # when building, don't use the install RPATH already
  # (but later on when installing)
  SET(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)

  if(APPLE)
    set(CMAKE_MACOSX_RPATH ON)
  endif(APPLE)

  # add the automatically determined parts of the RPATH
  # which point to directories outside the build tree to the install RPATH
  SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

  # the RPATH to be used when installing,
  # but only if it's not a system directory
  LIST(FIND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}" isSystemDir)
  IF("${isSystemDir}" STREQUAL "-1")
    SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
  ENDIF("${isSystemDir}" STREQUAL "-1")

ENDIF()

##
# End configuration for post-install RPath
##

################################
# Option checks
################################

# HDF5 cache variables.
SET(DEFAULT_CHUNK_SIZE 4194304 CACHE STRING "Default Chunk Cache Size.")
SET(DEFAULT_CHUNKS_IN_CACHE 10 CACHE STRING "Default number of chunks in cache.")
SET(CHUNK_CACHE_SIZE 4194304 CACHE STRING "Default Chunk Cache Size.")
SET(CHUNK_CACHE_NELEMS 1009 CACHE STRING "Default maximum number of elements in cache.")
SET(CHUNK_CACHE_PREEMPTION 0.75 CACHE STRING "Default file chunk cache preemption policy for HDf5 files(a number between 0 and 1, inclusive.")
SET(MAX_DEFAULT_CACHE_SIZE 67108864 CACHE STRING "Default maximum cache size.")
SET(NETCDF_LIB_NAME "" CACHE STRING "Default name of the netcdf library.")
SET(TEMP_LARGE "." CACHE STRING "Where to put large temp files if large file tests are run.")
SET(MPIEXEC "mpiexec" CACHE STRING "Command to run MPI programs if parallel tests are run.")

IF(NOT NETCDF_LIB_NAME STREQUAL "")
  SET(MOD_NETCDF_NAME ON)
ENDIF()

# Set the appropriate compiler/architecture for universal OSX binaries.
IF(${CMAKE_SYSTEM_NAME} EQUAL "Darwin")
  SET(CMAKE_OSX_ARCHITECTURES i386;x86_64)
ENDIF(${CMAKE_SYSTEM_NAME} EQUAL "Darwin")

# Macro for replacing '/MD' with '/MT'.
# Used only on Windows, /MD tells VS to use the shared
# CRT libs, MT tells VS to use the static CRT libs.
#
# Taken From:
#   http://www.cmake.org/Wiki/CMake_FAQ#How_can_I_build_my_MSVC_application_with_a_static_runtime.3F
#
MACRO(specify_static_crt_flag)
  SET(vars
    CMAKE_C_FLAGS
    CMAKE_C_FLAGS_DEBUG
    CMAKE_C_FLAGS_MINSIZEREL
    CMAKE_C_FLAGS_RELWITHDEBINFO
    CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG
    CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_MINSIZEREL
    CMAKE_CXX_FLAGS_RELWITHDEBINFO)

  FOREACH(flag_var ${vars})
    IF(${flag_var} MATCHES "/MD")
      STRING(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
    ENDIF()
  ENDFOREACH()

  FOREACH(flag_var ${vars})
    MESSAGE(STATUS " '${flag_var}': ${${flag_var}}")
  ENDFOREACH()
  MESSAGE(STATUS "")
ENDMACRO()

# Option to use Static Runtimes in MSVC
IF(MSVC)
  OPTION(NC_USE_STATIC_CRT "Use static CRT Libraries ('\\MT')." OFF)
  IF(NC_USE_STATIC_CRT)
    SET(USE_STATIC_CRT ON)
    specify_static_crt_flag()
  ENDIF()
ENDIF()

# Option to build netCDF Version 2
OPTION (ENABLE_V2_API "Build netCDF Version 2." ON)
SET(BUILD_V2 ${ENABLE_V2_API})
IF(NOT ENABLE_V2_API)
  SET(NO_NETCDF_2 ON)
ELSE(NOT ENABLE_V2_API)
  SET(USE_NETCDF_2 TRUE)
ENDIF(NOT ENABLE_V2_API)

# Option to build utilities
OPTION(BUILD_UTILITIES "Build ncgen, ncgen3, ncdump." ON)

# Option to use MMAP
OPTION(ENABLE_MMAP "Use MMAP." ON)

# Option to use examples.
OPTION(ENABLE_EXAMPLES "Build Examples" ON)

# Option to automatically build netcdf-fortran.
IF(NOT MSVC)
  OPTION(ENABLE_REMOTE_FORTRAN_BOOTSTRAP "Download and build netcdf-fortran automatically (EXPERIMENTAL)." OFF)
  IF(ENABLE_REMOTE_FORTRAN_BOOTSTRAP)
    SET(BUILD_FORTRAN ON)
  ENDIF()
  IF(BUILD_FORTRAN)
    CONFIGURE_FILE("${CMAKE_SOURCE_DIR}/postinstall.sh.in"
      "${CMAKE_BINARY_DIR}/postinstall.sh"
      @ONLY)

    ADD_CUSTOM_TARGET(build-netcdf-fortran
      COMMAND sh -c "${CMAKE_BINARY_DIR}/postinstall.sh -t cmake -a build"
      DEPENDS netcdf
      )

    ADD_CUSTOM_TARGET(install-netcdf-fortran
      COMMAND sh -c "${CMAKE_BINARY_DIR}/postinstall.sh -t cmake -a install"
      DEPENDS build-netcdf-fortran
      )

  ENDIF(BUILD_FORTRAN)
ENDIF()


###
# Allow the user to specify libraries
# to link against, similar to automakes 'LIBS' variable.
###
SET(NC_EXTRA_DEPS "" CACHE STRING "Additional libraries to link against.")
IF(NC_EXTRA_DEPS)
  STRING(REPLACE " " ";" DEPS_LIST ${NC_EXTRA_DEPS})
  FOREACH(_DEP ${DEPS_LIST})
    STRING(REGEX REPLACE "^-l" "" _LIB ${_DEP})
    FIND_LIBRARY("${_LIB}_DEP" NAMES "${_LIB}" "lib${_LIB}")
    MESSAGE(${${_LIB}_DEP})
    IF("${${_LIB}_DEP}" STREQUAL "${_LIB}_DEP-NOTFOUND")
      MESSAGE(FATAL_ERROR "Error finding ${_LIB}.")
    ELSE()
      MESSAGE(STATUS "Found ${_LIB}: ${${_LIB}_DEP}")
    ENDIF()
    SET(EXTRA_DEPS ${EXTRA_DEPS} "${${_LIB}_DEP}")
  ENDFOREACH()
  MESSAGE("Extra deps: ${EXTRA_DEPS}")
  LIST(REMOVE_DUPLICATES EXTRA_DEPS)
  SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${EXTRA_DEPS})
ENDIF()
###
# End user-specified dependent libraries.
###

# Option to use HDF4
OPTION(ENABLE_HDF4 "Build netCDF-4 with HDF4 read capability(HDF4, HDF5 and Zlib required)." OFF)
IF(ENABLE_HDF4)
  SET(USE_HDF4 ON)
  # Check for include files, libraries.

  FIND_PATH(MFHDF_H_INCLUDE_DIR mfhdf.h)
  IF(NOT MFHDF_H_INCLUDE_DIR)
    MESSAGE(FATAL_ERROR "HDF4 Support specified, cannot find file mfhdf.h")
  ELSE()
    INCLUDE_DIRECTORIES(${MFHDF_H_INCLUDE_DIR})
  ENDIF()

  FIND_LIBRARY(HDF4_DF_LIB NAMES df libdf hdf)
  IF(NOT HDF4_DF_LIB)
    MESSAGE(FATAL_ERROR "Can't find or link to the hdf4 df library.")
  ENDIF()

  FIND_LIBRARY(HDF4_MFHDF_LIB NAMES mfhdf libmfhdf)
  IF(NOT HDF4_MFHDF_LIB)
    MESSAGE(FATAL_ERROR "Can't find or link to the hdf4 mfhdf library.")
  ENDIF()

  SET(HAVE_LIBMFHDF TRUE)

  SET(HDF4_LIBRARIES ${HDF4_DF_LIB} ${HDF4_MFHDF_LIB})
  # End include files, libraries.
  MESSAGE(STATUS "HDF4 libraries: ${HDF4_DF_LIB}, ${HDF4_MFHDF_LIB}")

  MESSAGE(STATUS "Seeking HDF4 jpeg dependency.")

  # Look for the jpeglib.h header file.
  FIND_PATH(JPEGLIB_H_INCLUDE_DIR jpeglib.h)
  IF(NOT JPEGLIB_H_INCLUDE_DIR)
    MESSAGE(FATAL_ERROR "HDF4 Support enabled but cannot find jpeglib.h")
  ELSE()
    SET(HAVE_JPEGLIB_H ON CACHE BOOL "")
    SET(HAVE_LIBJPEG TRUE)
    INCLUDE_DIRECTORIES(${JPEGLIB_H_INCLUDE_DIR})
  ENDIF()

  FIND_LIBRARY(JPEG_LIB NAMES jpeg libjpeg)
  IF(NOT JPEG_LIB)
    MESSAGE(FATAL_ERROR "HDF4 Support enabled but cannot find libjpeg")
  ENDIF()
  SET(HDF4_LIBRARIES ${JPEG_LIB} ${HDF4_LIBRARIES})
  MESSAGE(STATUS "Found JPEG libraries: ${JPEG_LIB}")

  # Option to enable HDF4 file tests.
  OPTION(ENABLE_HDF4_FILE_TESTS "Run HDF4 file tests.  This fetches sample HDF4 files from the Unidata ftp site to test with (requires curl)." ON)
  IF(ENABLE_HDF4_FILE_TESTS)
    FIND_PROGRAM(PROG_CURL NAMES curl)
    IF(PROG_CURL)
      SET(USE_HDF4_FILE_TESTS ON)
    ELSE()
      MESSAGE(STATUS "Unable to locate 'curl'.  Disabling hdf4 file tests.")
      SET(USE_HDF4_FILE_TESTS OFF)
    ENDIF()
  ENDIF()
ENDIF()

# Option to Build DLL
IF(WIN32)
  OPTION(ENABLE_DLL "Build a Windows DLL." ${BUILD_SHARED_LIBS})
  IF(ENABLE_DLL)
    SET(BUILD_DLL ON CACHE BOOL "")
    ADD_DEFINITIONS(-DDLL_NETCDF)
    ADD_DEFINITIONS(-DDLL_EXPORT)
    ADD_DEFINITIONS(-DUTF8PROC_DLLEXPORT)
  ENDIF()
ENDIF()
# Did the user specify a default minimum blocksize for posixio?
SET(NCIO_MINBLOCKSIZE 256 CACHE STRING "Minimum I/O Blocksize for netCDF classic and 64-bit offset format files.")

# Build netCDF4
OPTION(ENABLE_NETCDF_4 "Enable netCDF-4" ON)
IF(ENABLE_NETCDF_4)
  SET(USE_NETCDF4 ON CACHE BOOL "")
  SET(ENABLE_NETCDF_4 ON CACHE BOOL "")
  SET(ENABLE_NETCDF4 ON CACHE BOOL "")
ELSE()
  SET(USE_HDF4_FILE_TESTS OFF)
  SET(USE_HDF4 OFF)
  SET(ENABLE_HDF4_FILE_TESTS OFF)
  SET(ENABLE_HDF4 OFF)
ENDIF()

# Option Logging, only valid for netcdf4.
OPTION(ENABLE_LOGGING "Enable Logging." OFF)
IF(ENABLE_LOGGING)
  ADD_DEFINITIONS(-DLOGGING)
  ADD_DEFINITIONS(-DENABLE_SET_LOG_LEVEL)
  SET(LOGGING ON)
  SET(ENABLE_SET_LOG_LEVEL ON)
ENDIF()
OPTION(ENABLE_SET_LOG_LEVEL_FUNC "Enable definition of nc_set_log_level()." ON)
IF(ENABLE_NETCDF_4 AND NOT ENABLE_LOGGING AND ENABLE_SET_LOG_LEVEL_FUNC)
  ADD_DEFINITIONS(-DENABLE_SET_LOG_LEVEL)
  SET(ENABLE_SET_LOG_LEVEL ON)
ENDIF()

# Option to allow for strict null file padding.
# See https://github.com/Unidata/netcdf-c/issues/657 for more information
OPTION(ENABLE_STRICT_NULL_BYTE_HEADER_PADDING "Enable strict null byte header padding." OFF)

IF(ENABLE_STRICT_NULL_BYTE_HEADER_PADDING)
  SET(USE_STRICT_NULL_BYTE_HEADER_PADDING ON CACHE BOOL "")
ENDIF(ENABLE_STRICT_NULL_BYTE_HEADER_PADDING)

# Option for building RPC
OPTION(ENABLE_RPC "Enable RPC Client and Server." OFF)
IF(ENABLE_RPC)
  SET(BUILD_RPC ON CACHE BOOL "")
ENDIF()

##
# Option to Enable HDF5
#
# The HDF5 cmake variables differ between platform (linux/osx and Windows),
# as well as between HDF5 versions.  As a result, this section is a bit convoluted.
#
# Note that the behavior seems much more stable across HDF5 versions under linux,
# so we do not have to do as much version-based tweaking.
#
# At the end of it, we should have the following defined:
#
# * HDF5_C_LIBRARY
# * HDF5_HL_LIBRARY
# * HDF5_LIBRARIES
# * HDF5_INCLUDE_DIR
# *
##
OPTION(USE_HDF5 "Use HDF5." ${ENABLE_NETCDF_4})
IF(USE_HDF5 OR ENABLE_NETCDF_4)
  SET(USE_HDF5 ON)
  SET(USE_NETCDF4 ON)
  ##
  # Accommodate developers who have hdf5 libraries and
  # headers on their system, but do not have a the hdf
  # .cmake files.  If this is the case, they should
  # specify HDF5_HL_LIB, HDF5_LIB, HDF5_INCLUDE_DIR manually.
  ##
  IF(HDF5_C_LIBRARY AND HDF5_HL_LIBRARY AND HDF5_INCLUDE_DIR)
    SET(HDF5_LIBRARIES ${HDF5_C_LIBRARY} ${HDF5_HL_LIBRARY})
    SET(HDF5_C_LIBRARIES ${HDF5_C_LIBRARY})
    SET(HDF5_C_LIBRARY_hdf5 ${HDF5_C_LIBRARY})
    SET(HDF5_HL_LIBRARIES ${HDF5_HL_LIBRARY})
    INCLUDE_DIRECTORIES(${HDF5_INCLUDE_DIR})
    MESSAGE(STATUS "Using HDF5 C Library: ${HDF5_C_LIBRARY}")
    MESSAGE(STATUS "Using HDF5 HL LIbrary: ${HDF5_HL_LIBRARY}")
  ELSE(HDF5_C_LIBRARY AND HDF5_HL_LIBRARY AND HDF5_INCLUDE_DIR) # We are seeking out HDF5 with Find Package.
    ###
    # For now we assume that if we are building netcdf
    # as a shared library, we will use hdf5 as a shared
    # library. If we are building netcdf statically,
    # we will use a static library.  This can be toggled
    # by explicitly modifying NC_FIND_SHARED_LIBS.
    ##
    IF(NC_FIND_SHARED_LIBS)
      SET(NC_HDF5_LINK_TYPE "shared")
      SET(NC_HDF5_LINK_TYPE_UPPER "SHARED")
      ADD_DEFINITIONS(-DH5_BUILT_AS_DYNAMIC_LIB)
    ELSE(NC_FIND_SHARED_LIBS)
      SET(NC_HDF5_LINK_TYPE "static")
      SET(NC_HDF5_LINK_TYPE_UPPER "STATIC")
      ADD_DEFINITIONS(-DH5_BUILT_AS_STATIC_LIB)
    ENDIF(NC_FIND_SHARED_LIBS)

    #####
    # First, find the C and HL libraries.
    #
    # This has been updated to reflect what is in the hdf5
    # examples, even though the previous version of what we
    # had worked.
    #####
    IF(MSVC)
      SET(SEARCH_PACKAGE_NAME ${HDF5_PACKAGE_NAME})
      FIND_PACKAGE(HDF5 NAMES ${SEARCH_PACKAGE_NAME} COMPONENTS C HL NO_MODULES REQUIRED ${NC_HDF5_LINK_TYPE})
    ELSE(MSVC)
      FIND_PACKAGE(HDF5 COMPONENTS C HL REQUIRED)
    ENDIF(MSVC)

    ##
    # Next, check the HDF5 version. This will inform which
    # HDF5 variables we need to munge.
    ##

    ##
    # Assert HDF5 version meets minimum required version.
    ##
    SET(HDF5_VERSION_REQUIRED 1.8.10)

    IF(HDF5_VERSION_STRING AND NOT HDF5_VERSION)
      SET(HDF5_VERSION ${HDF5_VERSION_STRING})
    ENDIF()

    IF("${HDF5_VERSION}" STREQUAL "")
      MESSAGE(STATUS "Unable to determine hdf5 version.  NetCDF requires at least version ${HDF5_VERSION_REQUIRED}")
    ELSE()
      IF(${HDF5_VERSION} VERSION_LESS ${HDF5_VERSION_REQUIRED})
        MESSAGE(FATAL_ERROR
	      "netCDF requires at least HDF5 ${HDF5_VERSION_REQUIRED}. Found ${HDF5_VERSION}.")
      ELSE()
        MESSAGE(STATUS "Found HDF5 libraries version ${HDF5_VERSION}")
      ENDIF()
    ENDIF()

    ##
    # Include the HDF5 include directory.
    ##
    IF(HDF5_INCLUDE_DIRS AND NOT HDF5_INCLUDE_DIR)
      SET(HDF5_INCLUDE_DIR ${HDF5_INCLUDE_DIRS})
    ENDIF()
    MESSAGE(STATUS "Using HDF5 include dir: ${HDF5_INCLUDE_DIR}")
    INCLUDE_DIRECTORIES(${HDF5_INCLUDE_DIR})

    ###
    # This is the block where we figure out what the appropriate
    # variables are, and we ensure that we end up with
    # HDF5_C_LIBRARY, HDF5_HL_LIBRARY and HDF5_LIBRARIES.
    ###
    IF(MSVC)
      ##
      # HDF5 1.8.15 defined HDF5_LIBRARIES.
      ##
      IF(${HDF5_VERSION} VERSION_LESS "1.8.16")
        SET(HDF5_C_LIBRARY hdf5)
        SET(HDF5_C_LIBRARY_hdf5 hdf5)
      ENDIF(${HDF5_VERSION} VERSION_LESS "1.8.16")

      IF(${HDF5_VERSION} VERSION_GREATER "1.8.15")
        IF(NOT HDF5_LIBRARIES AND HDF5_C_${NC_HDF5_LINK_TYPE_UPPER}_LIBRARY AND HDF5_HL_${NC_HDF5_LINK_TYPE_UPPER}_LIBRARY)
          SET(HDF5_C_LIBRARY ${HDF5_C_${NC_HDF5_LINK_TYPE_UPPER}_LIBRARY})
          SET(HDF5_C_LIBRARY_hdf5 ${HDF5_C_${NC_HDF5_LINK_TYPE_UPPER}_LIBRARY})
          SET(HDF5_HL_LIBRARY ${HDF5_HL_${NC_HDF5_LINK_TYPE_UPPER}_LIBRARY})

      	  SET(HDF5_LIBRARIES ${HDF5_C_${NC_HDF5_LINK_TYPE_UPPER}_LIBRARY} ${HDF5_HL_${NC_HDF5_LINK_TYPE_UPPER}_LIBRARY})
        ENDIF()
      ENDIF(${HDF5_VERSION} VERSION_GREATER "1.8.15")

    ELSE(MSVC)

      # Depending on the install, either HDF5_hdf_library or
      # HDF5_C_LIBRARIES may be defined.  We must check for either.
      IF(HDF5_C_LIBRARIES AND NOT HDF5_hdf5_LIBRARY)
        SET(HDF5_hdf5_LIBRARY ${HDF5_C_LIBRARIES})
      ENDIF()

    ENDIF(MSVC)
    IF(NOT HDF5_C_LIBRARY)
      SET(HDF5_C_LIBRARY hdf5)
    ENDIF()
  ENDIF(HDF5_C_LIBRARY AND HDF5_HL_LIBRARY AND HDF5_INCLUDE_DIR)

  FIND_PACKAGE(Threads)

  # There is a missing case in the above code so default it
  IF(NOT HDF5_C_LIBRARY_HDF5 OR "${HDF5_C_LIBRARY_hdf5}" STREQUAL "" )
    SET(HDF5_C_LIBRARY_hdf5 "${HDF5_C_LIBRARY}")
  ENDIF()

  ###
  # The following options are not used in Windows currently.
  ###
  IF(NOT MSVC)
    # Find out if HDF5 was built with parallel support.
    # Do that by checking for the targets H5Pget_fapl_mpiposx and
    # H5Pget_fapl_mpio in ${HDF5_LIB}.

    CHECK_LIBRARY_EXISTS(${HDF5_C_LIBRARY_hdf5} H5Pget_fapl_mpiposix "" HDF5_IS_PARALLEL_MPIPOSIX)
    CHECK_LIBRARY_EXISTS(${HDF5_C_LIBRARY_hdf5} H5Pget_fapl_mpio "" HDF5_IS_PARALLEL_MPIO)
    IF(HDF5_IS_PARALLEL_MPIPOSIX OR HDF5_IS_PARALLEL_MPIO)
      SET(HDF5_PARALLEL ON)
    ELSE()
      SET(HDF5_PARALLEL OFF)
    ENDIF()

    IF(HDF5_IS_PARALLEL_MPIO)
      SET(USE_PARALLEL_MPIO ON)
    ENDIF()

    IF(HDF5_IS_PARALLEL_MPIPOSIX)
      SET(USE_PARALLEL_POSIX ON)
    ENDIF()

    #Check to see if HDF5 library has collective metadata APIs, (HDF5 >= 1.10.0)
    CHECK_LIBRARY_EXISTS(${HDF5_C_LIBRARY_hdf5} H5Pset_all_coll_metadata_ops "" HDF5_HAS_COLL_METADATA_OPS)
  ENDIF(NOT MSVC)

  #Check to see if H5Z_SZIP exists in HDF5_Libraries. If so, we must use szip.
  CHECK_LIBRARY_EXISTS(${HDF5_C_LIBRARY_hdf5} H5Z_SZIP "" USE_SZIP)
  IF(USE_SZIP)
    FIND_LIBRARY(SZIP NAMES szip sz)
    IF(SZIP)
      SET(HAVE_H5Z_SZIP 1)
      SET(SZIP_LIBRARY ${SZIP})
      SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${SZIP})
    ELSE()
      MESSAGE(FATAL_ERROR "HDF5 Requires SZIP, but cannot find libszip or libsz.")
    ENDIF()
  ENDIF()

  CHECK_LIBRARY_EXISTS(${HDF5_C_LIBRARY_hdf5} H5Pset_libver_bounds "" HDF5_HAS_LIBVER_BOUNDS)

  IF(HDF5_PARALLEL)
	SET(HDF5_CC h5pcc)
  ELSE()
	SET(HDF5_CC h5cc)
  ENDIF()

  SET(H5_USE_16_API 1)
  OPTION(NC_ENABLE_HDF_16_API "Enable HDF5 1.6.x Compatibility(Required)" ON)
  IF(NOT NC_ENABLE_HDF_16_API)
    SET(H5_USE_16_API 0)
  ENDIF()

  FIND_PATH(HAVE_HDF5_H hdf5.h)
  IF(NOT HAVE_HDF5_H)
    MESSAGE(FATAL_ERROR "Compiling a test with hdf5 failed. Either hdf5.h cannot be found, or the log messages should be checked for another reason.")
  ELSE(NOT HAVE_HDF5_H)
    INCLUDE_DIRECTORIES(${HAVE_HDF5_H})
  ENDIF(NOT HAVE_HDF5_H)

  #option to include HDF5 High Level header file (hdf5_hl.h) in case we are not doing a make install
  INCLUDE_DIRECTORIES(${HDF5_HL_INCLUDE_DIR})


ENDIF(USE_HDF5 OR ENABLE_NETCDF_4)

# Option to Build DAP2+DAP4 Clients
OPTION(ENABLE_DAP "Enable DAP2 and DAP4 Client." ON)
IF(ENABLE_DAP)
  SET(USE_DAP ON CACHE BOOL "")
  SET(ENABLE_DAP2 ON CACHE BOOL "")


  IF(ENABLE_NETCDF_4)
    SET(ENABLE_DAP4 ON CACHE BOOL "")
  ELSE(ENABLE_NETCDF_4)
    SET(ENABLE_DAP4 OFF CACHE BOOL "")
  ENDIF(ENABLE_NETCDF_4)

  FIND_PACKAGE(CURL)
  IF(NOT CURL_LIBRARY)
    MESSAGE(FATAL_ERROR "DAP Support specified, CURL libraries are not found.")
  ENDIF()

  ADD_DEFINITIONS(-DCURL_STATICLIB=1)
  INCLUDE_DIRECTORIES(${CURL_INCLUDE_DIRS})

  # Check to see if CURLOPT_USERNAME is defined.
  # It is present starting version 7.19.1.
  CHECK_C_SOURCE_COMPILES("
  #include <curl/curl.h>
  int main() {int x = CURLOPT_USERNAME;}" HAVE_CURLOPT_USERNAME)

  # Check to see if CURLOPT_PASSWORD is defined.
  # It is present starting version 7.19.1.
  CHECK_C_SOURCE_COMPILES("
  #include <curl/curl.h>
  int main() {int x = CURLOPT_PASSWORD;}" HAVE_CURLOPT_PASSWORD)

  # Check to see if CURLOPT_KEYPASSWD is defined.
  # It is present starting version 7.16.4.
  CHECK_C_SOURCE_COMPILES("
  #include <curl/curl.h>
  int main() {int x = CURLOPT_KEYPASSWD;}" HAVE_CURLOPT_KEYPASSWD)

  # Check to see if CURLINFO_RESPONSE_CODE is defined.
  # It showed up in curl 7.10.7.
  CHECK_C_SOURCE_COMPILES("
  #include <curl/curl.h>
  int main() {int x = CURLINFO_RESPONSE_CODE;}" HAVE_CURLINFO_RESPONSE_CODE)

  # Check to see if CURLINFO_HTTP_CONNECTCODE is defined.
  # It showed up in curl 7.10.7.
  CHECK_C_SOURCE_COMPILES("
  #include <curl/curl.h>
  int main() {int x = CURLINFO_HTTP_CONNECTCODE;}" HAVE_CURLINFO_HTTP_CONNECTCODE)

ELSE()
  SET(ENABLE_DAP2 OFF)
  SET(ENABLE_DAP4 OFF)
ENDIF()


# Check for the math library so it can be explicitly linked.
IF(NOT WIN32)
  FIND_LIBRARY(HAVE_LIBM NAMES math m libm)
  MESSAGE(STATUS "Found Math library: ${HAVE_LIBM}")
  IF(NOT HAVE_LIBM)
    MESSAGE(FATAL_ERROR "Unable to find the math library.")
  ENDIF()
ENDIF()

# Option to Enable DAP long tests, remote tests.
OPTION(ENABLE_DAP_LONG_TESTS "Enable DAP long tests." OFF)
OPTION(ENABLE_DAP_REMOTE_TESTS "Enable DAP remote tests." ON)
SET(REMOTETESTSERVERS "149.165.169.123:8080,remotetest.unidata.ucar.edu" CACHE STRING "test servers to use for remote test")

# If netCDF4 and DAP, Option for DAP groups.
IF(ENABLE_NETCDF_4 AND ENABLE_DAP2)
  OPTION(ENABLE_DAP_GROUPS "Whether netcdf4 group names should be enabled." ON)
ELSE()
  SET(ENABLE_DAP_GROUPS OFF CACHE BOOL "Whether netcdf4 group names should be enabled.")
ENDIF()

# Enable some developer-only tests
OPTION(ENABLE_EXTRA_TESTS "Enable Extra tests. Some may not work because of known issues. Developers only." OFF)
IF(ENABLE_EXTRA_TESTS)
  SET(EXTRA_TESTS ON)
ENDIF()

# Option to use bundled XGetopt in place of getopt(). This is mostly useful
# for MSVC builds. If not building utilities, getopt() isn't required at all.
IF(MSVC)
  OPTION(ENABLE_XGETOPT "Enable bundled XGetOpt instead of external getopt()." ON)
  IF(ENABLE_XGETOPT)
    SET(USE_X_GETOPT ON CACHE BOOL "")
  ENDIF()
ENDIF()

SET(MATH "")
IF(NOT WIN32)

  # STDIO instead of posixio.
  OPTION(ENABLE_STDIO "If true, use stdio instead of posixio (ex. on the Cray)" OFF)
  IF(ENABLE_STDIO)
    SET(USE_STDIO ON CACHE BOOL "")
  ENDIF()

  # FFIO insteaad of PosixIO
  OPTION(ENABLE_FFIO "If true, use ffio instead of posixio" OFF)
  IF(ENABLE_FFIO)
    SET(USE_FFIO ON CACHE BOOL "")
  ENDIF()
ENDIF()

##
# Enable Tests
##
OPTION(ENABLE_TESTS "Enable basic tests, run with 'make test'." ON)
IF(ENABLE_TESTS)
  SET(BUILD_TESTSETS ON CACHE BOOL "")

  # Options for CTest-based tests, dashboards.
  SET(NC_CTEST_PROJECT_NAME "netcdf-c" CACHE STRING "Project Name for CTest-based testing purposes.")
  SET(NC_CTEST_DROP_SITE "cdash.unidata.ucar.edu" CACHE STRING "Dashboard location for CTest-based testing purposes.")
  SET(NC_CTEST_DROP_LOC_PREFIX "" CACHE STRING "Prefix for Dashboard location on remote server when using CTest-based testing.")

  FIND_PROGRAM(HOSTNAME_CMD NAMES hostname)
  IF(NOT MSVC)
    SET(HOSTNAME_ARG "-s")
  ENDIF()
  IF(HOSTNAME_CMD)
    EXEC_PROGRAM(${HOSTNAME_CMD} ARGS "${HOSTNAME_ARG}" OUTPUT_VARIABLE HOSTNAME)
    SET(NC_CTEST_SITE "${HOSTNAME}" CACHE STRING "Hostname of test machine.")
  ENDIF()

  IF(NC_CTEST_SITE)
    SET(SITE "${NC_CTEST_SITE}" CACHE STRING "")
  ENDIF()

  # Create a CTestConfig file from the template.
  CONFIGURE_FILE("${netCDF_SOURCE_DIR}/CTestConfig.cmake.in"
    "${netCDF_SOURCE_DIR}/CTestConfig.cmake"
    @ONLY
    )

  ###
  # This option dictates whether or not to turn on
  # tests which are known to fail.  This is not the
  # same thing as an 'expected failure'. Rather, these
  # are tests that will need to be fixed eventually.
  #
  # By placing them here, we can occasionaly turn this
  # flag on and see if any known failures have been
  # fixed in the course of code improvement/other bug
  # fixes.
  #
  # To use this, simply add as a fencepost around tests
  # which are known to fail.
  ###

  OPTION(ENABLE_FAILING_TESTS "Run tests which are known to fail, check to see if any have been fixed." OFF)

  ###
  # End known-failures.
  ###
  MARK_AS_ADVANCED(ENABLE_FAILING_TESTS)
ENDIF()

###
# Option to enable extreme numbers during testing.
###
OPTION(ENABLE_EXTREME_NUMBERS "Enable extreme numbers during testing, such as MAX_INT-1" ON)
IF(ENABLE_EXTREME_NUMBERS)
  SET(USE_EXTREME_NUMBERS ON)
ENDIF()

# Enable Large file tests
IF(ENABLE_LARGE_FILE_TESTS)
  SET(LARGE_FILE_TESTS ON)
ENDIF()

OPTION(ENABLE_METADATA_PERF_TESTS "Enable test of metadata performance." OFF)
IF(ENABLE_METADATA_PERF_TESTS)
  SET(ENABLE_METADATA_PERF ON)
ENDIF()

# Location for large file tests.
SET(TEMP_LARGE "." CACHE STRING "Location to store large file tests.")

OPTION(ENABLE_FSYNC "Enable experimental fsync code." OFF)
IF(ENABLE_FSYNC)
  SET(USE_FSYNC ON)
ENDIF()

# Temporary
OPTION (ENABLE_JNA "Enable jna bug fix code." OFF)
IF(ENABLE_JNA)
  SET(JNA ON)
ENDIF()

# Linux specific large file support flags.
# Modelled after check in CMakeLists.txt for hdf5.
OPTION(ENABLE_LARGE_FILE_SUPPORT "Enable large file support." ON)
IF(ENABLE_LARGE_FILE_SUPPORT)
  IF(MSVC)
    SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /LARGEADDRESSAWARE")
    SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /LARGEADDRESSAWARE")
    SET(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} /LARGEADDRESSAWARE")
  ELSE()
    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64")
  ENDIF()
ENDIF()

OPTION(ENABLE_EXAMPLE_TESTS "Run extra example tests.  Requires GNU Sed. Ignored if netCDF-4 is not Enabled" OFF)
IF(NOT ENABLE_NETCDF_4 AND ENABLE_EXAMPLE_TESTS)
  SET(ENABLE_EXAMPLE_TESTS OFF)
ENDIF()

# Enable Parallel IO with netCDF-4/HDF5 files using HDF5 parallel I/O.
SET(STATUS_PARALLEL "OFF")
OPTION(ENABLE_PARALLEL4 "Build netCDF-4 with parallel IO" "${HDF5_PARALLEL}")
IF(ENABLE_PARALLEL4 AND ENABLE_NETCDF_4)
  IF(NOT HDF5_PARALLEL)
    SET(USE_PARALLEL OFF CACHE BOOL "")
    MESSAGE(STATUS "Cannot find HDF5 library built with parallel support. Disabling parallel build.")
  ELSE()
    SET(HDF5_PARALLEL ON CACHE BOOL "")
    SET(USE_PARALLEL ON CACHE BOOL "")
    SET(USE_PARALLEL4 ON CACHE BOOL "")
    SET(STATUS_PARALLEL "ON")
    configure_file("${netCDF_SOURCE_DIR}/nc_test4/run_par_test.sh.in"
      "${netCDF_BINARY_DIR}/tmp/run_par_test.sh" @ONLY NEWLINE_STYLE LF)
    FILE(COPY "${netCDF_BINARY_DIR}/tmp/run_par_test.sh"
      DESTINATION ${netCDF_BINARY_DIR}/nc_test4
      FILE_PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)

  ENDIF()
ENDIF()

# Options to enable parallel IO for classic formats with parallel-netcdf library.
SET(STATUS_PNETCDF "OFF")
OPTION(ENABLE_PNETCDF "Build with parallel I/O for classic and 64-bit offset files using parallel-netcdf." OFF)

IF(ENABLE_PNETCDF)
  # Check for ncmpi_create in libpnetcdf, define USE_PNETCDF
  # Does the user want to turn on PNETCDF read ability?
  SET(USE_PNETCDF ON CACHE BOOL "")
  FIND_LIBRARY(PNETCDF NAMES pnetcdf)
  FIND_PATH(PNETCDF_INCLUDE_DIR pnetcdf.h)
  IF(NOT PNETCDF)
    MESSAGE(STATUS "Cannot find PnetCDF library. Disabling PnetCDF support.")
    SET(USE_PNETCDF OFF CACHE BOOL "")
  ELSE(NOT PNETCDF)
    SET(USE_PARALLEL ON CACHE BOOL "")

    # Check PnetCDF version. Must be >= 1.6.0
    set(pnetcdf_h "${PNETCDF_INCLUDE_DIR}/pnetcdf.h" )
    message(STATUS "PnetCDF include file ${pnetcdf_h} will be searched for version")
    file(STRINGS "${pnetcdf_h}" pnetcdf_major_string REGEX "^#define PNETCDF_VERSION_MAJOR")
    string(REGEX REPLACE "[^0-9]" "" pnetcdf_major "${pnetcdf_major_string}")
    file(STRINGS "${pnetcdf_h}" pnetcdf_minor_string REGEX "^#define PNETCDF_VERSION_MINOR")
    string(REGEX REPLACE "[^0-9]" "" pnetcdf_minor "${pnetcdf_minor_string}")
    file(STRINGS "${pnetcdf_h}" pnetcdf_sub_string REGEX "^#define PNETCDF_VERSION_SUB")
    string(REGEX REPLACE "[^0-9]" "" pnetcdf_sub "${pnetcdf_sub_string}")
    set(pnetcdf_version "${pnetcdf_major}.${pnetcdf_minor}.${pnetcdf_sub}")
    message(STATUS "Found PnetCDF version ${pnetcdf_version}")

    if(${pnetcdf_version} VERSION_GREATER "1.6.0")
      SET(STATUS_PNETCDF "ON")
      INCLUDE_DIRECTORIES(${PNETCDF_INCLUDE_DIR})
      SET(HAVE_LIBPNETCDF ON)
      # pnetcdf => parallel
      SET(STATUS_PARALLEL ON)
      SET(USE_PARALLEL ON)
      MESSAGE(STATUS "Using PnetCDF Library: ${PNETCDF}")
    ELSE()
      MESSAGE(WARNING "ENABLE_PNETCDF requires version 1.6.1 or later; found version ${pnetcdf_version}. PnetCDF is disabled")
    ENDIF()
  ENDIF(NOT PNETCDF)
ENDIF()

# Options to enable use of fill values for elements causing NC_ERANGE
SET(ENABLE_ERANGE_FILL AUTO CACHE STRING "AUTO")
OPTION(ENABLE_ERANGE_FILL "Enable use of fill value when out-of-range type conversion causes NC_ERANGE error." OFF)
IF(ENABLE_ERANGE_FILL) # enable or auto
   STRING(TOUPPER ${ENABLE_ERANGE_FILL} ENABLE_ERANGE_FILL)
   IF(ENABLE_ERANGE_FILL AND NOT ENABLE_ERANGE_FILL STREQUAL "AUTO")
      # explicitly enabled
      SET(ENABLE_ERANGE_FILL ON)
   ELSE()
      IF(NOT ENABLE_ERANGE_FILL STREQUAL "AUTO")
         SET(ENABLE_ERANGE_FILL OFF)
      ENDIF()
   ENDIF()
ENDIF(ENABLE_ERANGE_FILL)
# Now ENABLE_ERANGE_FILL is either AUTO, ON, or OFF

# Options to use a more relaxed coordinate argument boundary check
SET(ENABLE_ZERO_LENGTH_COORD_BOUND AUTO CACHE STRING "AUTO")
OPTION(ENABLE_ZERO_LENGTH_COORD_BOUND "Enable a more relaxed boundary error check NC_EINVALCOORDS to allow coordinate start argument equal to dimension size when argument count is zero." OFF)
IF(ENABLE_ZERO_LENGTH_COORD_BOUND) # enable or auto
   STRING(TOUPPER ${ENABLE_ZERO_LENGTH_COORD_BOUND} ENABLE_ZERO_LENGTH_COORD_BOUND)
   IF(ENABLE_ZERO_LENGTH_COORD_BOUND AND NOT ENABLE_ZERO_LENGTH_COORD_BOUND STREQUAL "AUTO")
      # explicitly enabled
      SET(ENABLE_ZERO_LENGTH_COORD_BOUND ON)
   ELSE()
      IF(NOT ENABLE_ZERO_LENGTH_COORD_BOUND STREQUAL "AUTO")
         SET(ENABLE_ZERO_LENGTH_COORD_BOUND OFF)
      ENDIF()
   ENDIF()
ENDIF(ENABLE_ZERO_LENGTH_COORD_BOUND)
# Now ENABLE_ZERO_LENGTH_COORD_BOUND is either AUTO, ON, or OFF

# check and conform with PnetCDF settings on ERANGE_FILL and RELAX_COORD_BOUND
IF(STATUS_PNETCDF)
  file(STRINGS "${pnetcdf_h}" enable_erange_fill_pnetcdf REGEX "^#define PNETCDF_ERANGE_FILL")
  string(REGEX REPLACE "[^0-9]" "" erange_fill_pnetcdf "${enable_erange_fill_pnetcdf}")
  IF("x${erange_fill_pnetcdf}" STREQUAL "x1")
     SET(erange_fill_pnetcdf "ON")
  ELSE()
     SET(erange_fill_pnetcdf "OFF")
  ENDIF()
  IF(ENABLE_ERANGE_FILL STREQUAL "AUTO") # not set on command line
     SET(ENABLE_ERANGE_FILL "${erange_fill_pnetcdf}")
  ELSE()
     # user explicitly set this option on command line
     IF(NOT ENABLE_ERANGE_FILL STREQUAL "${erange_fill_pnetcdf}")
        IF(ENABLE_ERANGE_FILL)
           MESSAGE(FATAL_ERROR "Enabling erange-fill conflicts with PnetCDF setting")
        ELSE()
           MESSAGE(FATAL_ERROR "Disabling erange-fill conflicts with PnetCDF setting")
        ENDIF()
     ENDIF()
  ENDIF()

  file(STRINGS "${pnetcdf_h}" relax_coord_bound_pnetcdf REGEX "^#define PNETCDF_RELAX_COORD_BOUND")
  string(REGEX REPLACE "[^0-9]" "" relax_coord_bound "${relax_coord_bound_pnetcdf}")
  IF("x${relax_coord_bound}" STREQUAL "x1")
     SET(relax_coord_bound_pnetcdf "ON")
  ELSE()
     SET(relax_coord_bound_pnetcdf "OFF")
  ENDIF()
  IF(ENABLE_ZERO_LENGTH_COORD_BOUND STREQUAL "AUTO") # not set on command line
     SET(ENABLE_ZERO_LENGTH_COORD_BOUND "${relax_coord_bound_pnetcdf}")
  ELSE()
     # user explicitly set this option on command line
     IF(NOT ENABLE_ZERO_LENGTH_COORD_BOUND STREQUAL "${relax_coord_bound_pnetcdf}")
        IF(ENABLE_ZERO_LENGTH_COORD_BOUND)
           MESSAGE(FATAL_ERROR "Enabling relax-coord-bound conflicts with PnetCDF setting")
        ELSE()
           MESSAGE(FATAL_ERROR "Disabling relax-coord-bound conflicts with PnetCDF setting")
        ENDIF()
     ENDIF()
  ENDIF()
ENDIF()

IF(ENABLE_ERANGE_FILL)
  MESSAGE(STATUS "Enabling use of fill value when NC_ERANGE")
  SET(M4FLAGS "-DERANGE_FILL" CACHE STRING "")
ENDIF()

IF(ENABLE_ZERO_LENGTH_COORD_BOUND)
  MESSAGE(STATUS "Enabling a more relaxed check for NC_EINVALCOORDS")
  ADD_DEFINITIONS(-DRELAX_COORD_BOUND)
ENDIF()

# Enable Parallel Tests.
OPTION(ENABLE_PARALLEL_TESTS "Enable Parallel IO Tests. Requires HDF5/NetCDF4 with parallel I/O Support." ${USE_PARALLEL})
IF(ENABLE_PARALLEL_TESTS AND USE_PARALLEL)
  SET(TEST_PARALLEL ON CACHE BOOL "")
  IF(USE_NETCDF4)
    SET(TEST_PARALLEL4 ON CACHE BOOL "")
  ENDIF()
ENDIF()

IF (ENABLE_PARALLEL_TESTS AND NOT USE_PARALLEL)
  MESSAGE(FATAL_ERROR "Parallel tests requested, but no parallel HDF5 installation detected.")
ENDIF()

# Enable special filter test; experimental when using cmake.
OPTION(ENABLE_FILTER_TESTING "Enable filter testing. Ignored if shared libraries or netCDF4 are not enabled" OFF)
IF(NOT ENABLE_NETCDF4)
  MESSAGE(WARNING "ENABLE_FILTER_TESTING requires netCDF-4. Disabling.")
  SET(ENABLE_FILTER_TESTING OFF CACHE BOOL "")
ENDIF()
IF(NOT BUILD_SHARED_LIBS)
  MESSAGE(WARNING "ENABLE_FILTER_TESTING requires shared libraries. Disabling.")
  SET(ENABLE_FILTER_TESTING OFF CACHE BOOL "")
ENDIF()

# Determine whether or not to generate documentation.
OPTION(ENABLE_DOXYGEN "Enable generation of doxygen-based documentation." OFF)
IF(ENABLE_DOXYGEN)
  FIND_PACKAGE(Doxygen REQUIRED)
  # Offer the option to build internal documentation.
  OPTION(ENABLE_INTERNAL_DOCS "Build internal documentation. This is of interest to developers only." OFF)
  IF(ENABLE_INTERNAL_DOCS)
    SET(BUILD_INTERNAL_DOCS YES CACHE STRING "")
  ELSE()
    SET(BUILD_INTERNAL_DOCS NO CACHE STRING "")
  ENDIF()

  ###
  #
  # If we are building release documentation, we need to set some
  # variables that will be used in the Doxygen.in template.
  ###
  OPTION(ENABLE_DOXYGEN_BUILD_RELEASE_DOCS "Build release documentation.  This is of interest only to the netCDF developers." OFF)
  IF(ENABLE_DOXYGEN_BUILD_RELEASE_DOCS)
    SET(DOXYGEN_CSS_FILE "${CMAKE_SOURCE_DIR}/docs/release.css" CACHE STRING "")
    SET(DOXYGEN_HEADER_FILE "${CMAKE_SOURCE_DIR}/docs/release_header.html" CACHE STRING "")
    SET(DOXYGEN_SEARCHENGINE "NO" CACHE STRING "")
    SET(ENABLE_DOXYGEN_SERVER_BASED_SEARCH NO CACHE STRING "")
  ELSE()
    SET(DOXYGEN_CSS_FILE "" CACHE STRING "")
    SET(DOXYGEN_HEADER_FILE "" CACHE STRING "")
    SET(DOXYGEN_SEARCHENGINE "YES" CACHE STRING "")

    # If not using release document configuration,
    # provide an option for server-based search.
    OPTION(ENABLE_DOXYGEN_SERVER_SIDE_SEARCH "Configure Doxygen with server-based search." OFF)
    IF(ENABLE_DOXYGEN_SERVER_SIDE_SEARCH)
      SET(DOXYGEN_SERVER_BASED_SEARCH "YES" CACHE STRING "")
    ELSE()
      SET(DOXYGEN_SERVER_BASED_SEARCH "NO" CACHE STRING "")
    ENDIF(ENABLE_DOXYGEN_SERVER_SIDE_SEARCH)


  ENDIF(ENABLE_DOXYGEN_BUILD_RELEASE_DOCS)
  # Option to turn on the TODO list in the doxygen-generated documentation.
  OPTION(DOXYGEN_ENABLE_TASKS "Turn on test, todo, bug lists in documentation. This is of interest to developers only." OFF)
  IF(DOXYGEN_ENABLE_TASKS)
    SET(SHOW_DOXYGEN_TAG_LIST YES CACHE STRING "")
  ELSE(DOXYGEN_ENABLE_TASKS)
    SET(SHOW_DOXYGEN_TODO_LIST NO CACHE STRING "")
  ENDIF(DOXYGEN_ENABLE_TASKS)

  OPTION(ENABLE_DOXYGEN_PDF_OUTPUT "[EXPERIMENTAL] Turn on PDF output for Doxygen-generated documentation." OFF)

  IF(ENABLE_DOXYGEN_PDF_OUTPUT)
    SET(NC_ENABLE_DOXYGEN_PDF_OUTPUT "YES" CACHE STRING "")
  ELSE()
    SET(NC_ENABLE_DOXYGEN_PDF_OUTPUT "NO" CACHE STRING "")
  ENDIF()

  FIND_PROGRAM(NC_DOT NAMES dot)
  # Specify whether or not 'dot' was found on the system path.
  IF(NC_DOT)
    SET(HAVE_DOT YES CACHE STRING "")
  ELSE(NC_DOT)
    SET(HAVE_DOT NO CACHE STRING "")
  ENDIF(NC_DOT)
ENDIF()

# Always enable DISKLESS
OPTION(ENABLE_DISKLESS "Enable in-memory files" ON)


# By default, MSVC has a stack size of 1000000.
# Allow a user to override this.
IF(MSVC)
  SET(NC_MSVC_STACK_SIZE 40000000 CACHE STRING "Default stack size for MSVC-based projects.")
  # By default, CMake sets the stack to 1000000.
  # Remove this limitation.
  # See here for more details:
  # http://www.cmake.org/pipermail/cmake/2009-April/028710.html
  SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /STACK:${NC_MSVC_STACK_SIZE}")
  SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /STACK:${NC_MSVC_STACK_SIZE}")
  SET(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} /STACK:${NC_MSVC_STACK_SIZE}")
ENDIF()

# Set some of the options as advanced.
MARK_AS_ADVANCED(ENABLE_INTERNAL_DOCS VALGRIND_TESTS ENABLE_COVERAGE_TESTS )
MARK_AS_ADVANCED(ENABLE_DAP_REMOTE_TESTS ENABLE_DAP_LONG_TESTS USE_REMOTE_CDASH)
MARK_AS_ADVANCED(ENABLE_DOXYGEN_BUILD_RELEASE_DOCS DOXYGEN_ENABLE_TASKS ENABLE_DOXYGEN_SERVER_SIDE_SEARCH)
MARK_AS_ADVANCED(ENABLE_SHARED_LIBRARY_VERSION)

################################
# Option checks
################################

# Library include checks
CHECK_INCLUDE_FILE("math.h"      HAVE_MATH_H)
CHECK_INCLUDE_FILE("unistd.h"  HAVE_UNISTD_H)
# Solve a compatibility issue in ncgen/, which checks
# for NO_UNISTD_H
IF(NOT HAVE_UNISTD_H)
  SET(YY_NO_UNISTD_H TRUE)
ENDIF()

CHECK_INCLUDE_FILE("alloca.h"  HAVE_ALLOCA_H)
CHECK_INCLUDE_FILE("malloc.h"    HAVE_MALLOC_H)
CHECK_INCLUDE_FILE("fcntl.h"   HAVE_FCNTL_H)
CHECK_INCLUDE_FILE("getopt.h"  HAVE_GETOPT_H)
CHECK_INCLUDE_FILE("locale.h"  HAVE_LOCALE_H)
CHECK_INCLUDE_FILE("stdint.h"  HAVE_STDINT_H)
CHECK_INCLUDE_FILE("stdio.h"   HAVE_STDIO_H)
IF(MSVC)
CHECK_INCLUDE_FILE("io.h"      HAVE_IO_H)
ENDIF(MSVC)
CHECK_INCLUDE_FILE("stdlib.h"  HAVE_STDLIB_H)
CHECK_INCLUDE_FILE("stdarg.h"    HAVE_STDARG_H)
CHECK_INCLUDE_FILE("strings.h"   HAVE_STRINGS_H)
CHECK_INCLUDE_FILE("signal.h"    HAVE_SIGNAL_H)
CHECK_INCLUDE_FILE("sys/param.h" HAVE_SYS_PARAM_H)
CHECK_INCLUDE_FILE("sys/stat.h"  HAVE_SYS_STAT_H)
CHECK_INCLUDE_FILE("sys/time.h"  HAVE_SYS_TIME_H)
CHECK_INCLUDE_FILE("sys/types.h" HAVE_SYS_TYPES_H)
CHECK_INCLUDE_FILE("sys/mman.h"  HAVE_SYS_MMAN_H)
CHECK_INCLUDE_FILE("sys/resource.h" HAVE_SYS_RESOURCE_H)
CHECK_INCLUDE_FILE("fcntl.h"  HAVE_FCNTL_H)
CHECK_INCLUDE_FILE("inttypes.h"  HAVE_INTTYPES_H)
CHECK_INCLUDE_FILE("pstdint.h"  HAVE_PSTDINT_H)
CHECK_INCLUDE_FILE("endian.h" HAVE_ENDIAN_H)
CHECK_INCLUDE_FILE("BaseTsd.h"  HAVE_BASETSD_H)
CHECK_INCLUDE_FILE("stddef.h"   HAVE_STDDEF_H)
CHECK_INCLUDE_FILE("string.h"  HAVE_STRING_H)
CHECK_INCLUDE_FILE("winsock2.h" HAVE_WINSOCK2_H)
CHECK_INCLUDE_FILE("ftw.h"  HAVE_FTW_H)
CHECK_INCLUDE_FILE("libgen.h" HAVE_LIBGEN_H)

# Symbol Exists
CHECK_SYMBOL_EXISTS(isfinite "math.h" HAVE_DECL_ISFINITE)
CHECK_SYMBOL_EXISTS(isnan "math.h" HAVE_DECL_ISNAN)
CHECK_SYMBOL_EXISTS(isinf "math.h" HAVE_DECL_ISINF)
CHECK_SYMBOL_EXISTS(st_blksize "sys/stat.h" HAVE_STRUCT_STAT_ST_BLKSIZE)
CHECK_SYMBOL_EXISTS(alloca "alloca.h" HAVE_ALLOCA)
CHECK_SYMBOL_EXISTS(snprintf "stdio.h" HAVE_SNPRINTF)

# Type checks
# Aliases for automake consistency
SET(SIZEOF_VOIDSTAR ${CMAKE_SIZEOF_VOID_P})
SET(SIZEOF_VOIDP ${SIZEOF_VOIDSTAR})
CHECK_TYPE_SIZE("char"      SIZEOF_CHAR)
CHECK_TYPE_SIZE("double"    SIZEOF_DOUBLE)
CHECK_TYPE_SIZE("float"     SIZEOF_FLOAT)
CHECK_TYPE_SIZE("int"       SIZEOF_INT)
CHECK_TYPE_SIZE("uint"      SIZEOF_UINT)
IF(SIZEOF_UINT)
  SET(HAVE_UINT TRUE)
ENDIF(SIZEOF_UINT)

CHECK_TYPE_SIZE("schar"      SIZEOF_SCHAR)
IF(SIZEOF_SCHAR)
  SET(HAVE_SCHAR TRUE)
ENDIF(SIZEOF_SCHAR)

CHECK_TYPE_SIZE("long"      SIZEOF_LONG)
CHECK_TYPE_SIZE("long long" SIZEOF_LONG_LONG)
IF(SIZEOF_LONG_LONG)
  SET(HAVE_LONG_LONG_INT TRUE)
ENDIF(SIZEOF_LONG_LONG)

CHECK_TYPE_SIZE("unsigned long long" SIZEOF_UNSIGNED_LONG_LONG)

CHECK_TYPE_SIZE("off_t"     SIZEOF_OFF_T)
CHECK_TYPE_SIZE("off64_t"   SIZEOF_OFF64_T)
CHECK_TYPE_SIZE("short"     SIZEOF_SHORT)
CHECK_TYPE_SIZE("ushort"    SIZEOF_USHORT)
IF(SIZEOF_USHORT)
  SET(HAVE_USHORT TRUE)
ENDIF(SIZEOF_USHORT)

CHECK_TYPE_SIZE("_Bool"     SIZEOF__BOOL)

CHECK_TYPE_SIZE("size_t"    SIZEOF_SIZE_T)

# Check whether to turn on or off CDF5 support.
SET(ENABLE_CDF5 AUTO CACHE STRING "AUTO")
OPTION(ENABLE_CDF5 "Enable CDF5 support" ON)
IF(SIZEOF_SIZE_T EQUAL 4)
   IF(ENABLE_CDF5) # enable or auto
      STRING(TOUPPER ${ENABLE_CDF5} ENABLE_CDF5)
      IF(ENABLE_CDF5 AND NOT ENABLE_CDF5 STREQUAL "AUTO") # explicitly enabled
         MESSAGE(FATAL_ERROR "Unable to support CDF5 feature because size_t is less than 8 bytes")
      ENDIF(ENABLE_CDF5 AND NOT ENABLE_CDF5 STREQUAL "AUTO")
      SET(ENABLE_CDF5 OFF) # cannot support CDF5
      SET(USE_CDF5 OFF CACHE BOOL "") # cannot support CDF5
   ENDIF(ENABLE_CDF5)
ELSE(SIZEOF_SIZE_T EQUAL 4)
   IF(ENABLE_CDF5) # explicitly set by user or not set
      SET(USE_CDF5 ON CACHE BOOL "")
   ELSE(ENABLE_CDF5) # explicitly disabled by user
      SET(USE_CDF5 OFF CACHE BOOL "")
   ENDIF(ENABLE_CDF5)
ENDIF(SIZEOF_SIZE_T EQUAL 4)

CHECK_TYPE_SIZE("ssize_t"   SIZEOF_SSIZE_T)
IF(SIZEOF_SSIZE_T)
  SET(HAVE_SSIZE_T TRUE)
ENDIF(SIZEOF_SSIZE_T)
CHECK_TYPE_SIZE("ptrdiff_t" SIZEOF_PTRDIFF_T)
IF(SIZEOF_PTRDIFF_T)
  SET(HAVE_PTRDIFF_T TRUE)
ENDIF(SIZEOF_PTRDIFF_T)
CHECK_TYPE_SIZE("uintptr_t" SIZEOF_UINTPTR_T)
IF(SIZEOF_UINTPTR_T)
  SET(HAVE_UINTPTR_T TRUE)
ENDIF(SIZEOF_UINTPTR_T)

# __int64 is used on Windows for large file support.
CHECK_TYPE_SIZE("__int64"   SIZEOF___INT_64)
CHECK_TYPE_SIZE("int64_t"   SIZEOF_INT64_T)
CHECK_TYPE_SIZE("uint64_t"  SIZEOF_UINT64_T)
CHECK_TYPE_SIZE("unsigned char"      SIZEOF_UCHAR)
CHECK_TYPE_SIZE("unsigned short int" SIZEOF_UNSIGNED_SHORT_INT)
CHECK_TYPE_SIZE("unsigned int"       SIZEOF_UNSIGNED_INT)
CHECK_TYPE_SIZE("long long"          SIZEOF_LONGLONG)
CHECK_TYPE_SIZE("unsigned long long" SIZEOF_ULONGLONG)

# On windows systems, we redefine off_t as __int64
# to enable LFS. This is true on 32 and 64 bit system.s
# We must redefine SIZEOF_OFF_T to match.
IF(MSVC AND SIZEOF___INT_64)
  SET(SIZEOF_OFF_T  ${SIZEOF___INT_64})
ENDIF()

# Check for various functions.
CHECK_FUNCTION_EXISTS(fsync HAVE_FSYNC)
CHECK_FUNCTION_EXISTS(strlcat   HAVE_STRLCAT)
CHECK_FUNCTION_EXISTS(strdup  HAVE_STRDUP)
CHECK_FUNCTION_EXISTS(strndup HAVE_STRNDUP)
CHECK_FUNCTION_EXISTS(strtoll HAVE_STRTOLL)
CHECK_FUNCTION_EXISTS(strtoull  HAVE_STRTOULL)
CHECK_FUNCTION_EXISTS(mkstemp HAVE_MKSTEMP)
CHECK_FUNCTION_EXISTS(mktemp HAVE_MKTEMP)
CHECK_FUNCTION_EXISTS(random HAVE_RANDOM)
CHECK_FUNCTION_EXISTS(gettimeofday  HAVE_GETTIMEOFDAY)
CHECK_FUNCTION_EXISTS(fsync HAVE_FSYNC)
CHECK_FUNCTION_EXISTS(MPI_Comm_f2c  HAVE_MPI_COMM_F2C)
CHECK_FUNCTION_EXISTS(memmove HAVE_MEMMOVE)
CHECK_FUNCTION_EXISTS(getpagesize HAVE_GETPAGESIZE)
CHECK_FUNCTION_EXISTS(sysconf HAVE_SYSCONF)
CHECK_FUNCTION_EXISTS(getrlimit HAVE_GETRLIMIT)
CHECK_FUNCTION_EXISTS(_filelengthi64 HAVE_FILE_LENGTH_I64)
CHECK_FUNCTION_EXISTS(mremap HAVE_MREMAP)

IF(ENABLE_MMAP)
  IF(NOT HAVE_MREMAP)
    MESSAGE(WARNING "mremap not found: disabling MMAP support.")
    SET(ENABLE_MMAP OFF)
  ELSE(NOT HAVE_MREMAP)
    SET(BUILD_MMAP ON)
    SET(USE_MMAP ON)
  ENDIF(NOT HAVE_MREMAP)
ENDIF(ENABLE_MMAP)

#CHECK_FUNCTION_EXISTS(alloca HAVE_ALLOCA)
#####
# End system inspection checks.
#####

################################
# Define Utility Macros
################################

# Macro to append files to the EXTRA_DIST files.
# Note: can only be used in subdirectories because of the use of PARENT_SCOPE
SET(EXTRA_DIST "")
MACRO(ADD_EXTRA_DIST files)
  FOREACH(F ${files})
    SET(EXTRA_DIST ${EXTRA_DIST} ${CMAKE_CURRENT_SOURCE_DIR}/${F})
    SET(EXTRA_DIST ${EXTRA_DIST} PARENT_SCOPE)
  ENDFOREACH()
ENDMACRO()

# A basic script used to convert m4 files
FIND_PROGRAM(NC_M4 NAMES m4 m4.exe)
IF(NC_M4)
  MESSAGE(STATUS "Found m4: ${NC_M4}")
  SET(HAVE_M4 TRUE)
ELSE()
  MESSAGE(STATUS "m4 not found.")
ENDIF()

MACRO(GEN_m4 filename)

  IF(HAVE_M4)

  # If m4 is available, remove generated file if it exists.
  IF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${filename}.c)
    FILE(REMOVE ${CMAKE_CURRENT_SOURCE_DIR}/${filename}.c)
  ENDIF()

  ADD_CUSTOM_COMMAND(
    OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/${filename}.c
    COMMAND ${NC_M4}
    ARGS ${M4FLAGS} ${CMAKE_CURRENT_SOURCE_DIR}/${filename}.m4 > ${CMAKE_CURRENT_SOURCE_DIR}/${filename}.c
    VERBATIM
    )
ENDIF(HAVE_M4)
ENDMACRO(GEN_m4)

# Binary tests, but ones which depend on value of 'TEMP_LARGE' being defined.
MACRO(add_bin_env_temp_large_test prefix F)
  ADD_EXECUTABLE(${prefix}_${F} ${F}.c)
  TARGET_LINK_LIBRARIES(${prefix}_${F} netcdf)
  IF(MSVC)
    SET_TARGET_PROPERTIES(${prefix}_${F}
      PROPERTIES LINK_FLAGS_DEBUG " /NODEFAULTLIB:MSVCRT"
      )
  ENDIF()

  ADD_TEST(${prefix}_${F} bash "-c" "TEMP_LARGE=${CMAKE_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}/${prefix}_${F}")
  IF(MSVC)
    SET_PROPERTY(TARGET ${prefix}_${F} PROPERTY FOLDER "tests")
    SET_TARGET_PROPERTIES(${prefix}_${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY
      ${CMAKE_CURRENT_BINARY_DIR})
    SET_TARGET_PROPERTIES(${prefix}_${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_DEBUG
      ${CMAKE_CURRENT_BINARY_DIR})
    SET_TARGET_PROPERTIES(${prefix}_${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_RELEASE
      ${CMAKE_CURRENT_BINARY_DIR})
   SET_TARGET_PROPERTIES(${prefix}_${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_RELWITHDEBINFO
      ${CMAKE_CURRENT_BINARY_DIR})
  ENDIF()
ENDMACRO()


# Tests which are binary, but depend on a particular environmental variable.
MACRO(add_bin_env_test prefix F)
  ADD_EXECUTABLE(${prefix}_${F} ${F}.c)
  TARGET_LINK_LIBRARIES(${prefix}_${F} netcdf)
  IF(MSVC)
    SET_TARGET_PROPERTIES(${prefix}_${F}
      PROPERTIES LINK_FLAGS_DEBUG " /NODEFAULTLIB:MSVCRT"
      )
  ENDIF()

  ADD_TEST(${prefix}_${F} bash "-c" "TOPSRCDIR=${CMAKE_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}/${prefix}_${F}")
  IF(MSVC)
    SET_PROPERTY(TARGET ${prefix}_${F} PROPERTY FOLDER "tests")
  ENDIF()
ENDMACRO()

# Build a binary used by a script, but don't make a test out of it.
MACRO(build_bin_test F)
  ADD_EXECUTABLE(${F} ${F}.c)
  TARGET_LINK_LIBRARIES(${F} netcdf ${ALL_TLL_LIBS})
  IF(MSVC)
    SET_TARGET_PROPERTIES(${F}
      PROPERTIES LINK_FLAGS_DEBUG " /NODEFAULTLIB:MSVCRT"
      )
    SET_TARGET_PROPERTIES(${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY
      ${CMAKE_CURRENT_BINARY_DIR})
    SET_TARGET_PROPERTIES(${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_DEBUG
      ${CMAKE_CURRENT_BINARY_DIR})
    SET_TARGET_PROPERTIES(${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_RELEASE
      ${CMAKE_CURRENT_BINARY_DIR})
  ENDIF()
ENDMACRO()

# Binary tests which are used by a script looking for a specific name.
MACRO(add_bin_test_no_prefix F)
  build_bin_test(${F})
  ADD_TEST(${F} ${EXECUTABLE_OUTPUT_PATH}/${F})
  IF(MSVC)
    SET_PROPERTY(TEST ${F} PROPERTY FOLDER "tests/")
    SET_TARGET_PROPERTIES(${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY
      ${CMAKE_CURRENT_BINARY_DIR})
    SET_TARGET_PROPERTIES(${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_DEBUG
      ${CMAKE_CURRENT_BINARY_DIR})
    SET_TARGET_PROPERTIES(${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_RELEASE
      ${CMAKE_CURRENT_BINARY_DIR})
  ENDIF()
ENDMACRO()

# Binary tests which are used by a script looking for a specific name.
MACRO(build_bin_test_no_prefix F)
  build_bin_test(${F})
  IF(MSVC)
    #SET_PROPERTY(TEST ${F} PROPERTY FOLDER "tests/")
    SET_TARGET_PROPERTIES(${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY
      ${CMAKE_CURRENT_BINARY_DIR})
    SET_TARGET_PROPERTIES(${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_DEBUG
      ${CMAKE_CURRENT_BINARY_DIR})
    SET_TARGET_PROPERTIES(${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_RELEASE
      ${CMAKE_CURRENT_BINARY_DIR})
  ENDIF()
ENDMACRO()

MACRO(add_bin_test prefix F)
  ADD_EXECUTABLE(${prefix}_${F} ${F}.c)
  TARGET_LINK_LIBRARIES(${prefix}_${F}
    ${ALL_TLL_LIBS}
    netcdf
    )
  IF(MSVC)
    SET_TARGET_PROPERTIES(${prefix}_${F}
      PROPERTIES LINK_FLAGS_DEBUG " /NODEFAULTLIB:MSVCRT"
      )
  ENDIF()
  ADD_TEST(${prefix}_${F}
           ${EXECUTABLE_OUTPUT_PATH}/${prefix}_${F}
           )
  IF(MSVC)
    SET_PROPERTY(TEST ${prefix}_${F} PROPERTY FOLDER "tests/")
    SET_TARGET_PROPERTIES(${prefix}_${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY
      ${CMAKE_CURRENT_BINARY_DIR})
    SET_TARGET_PROPERTIES(${prefix}_${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_DEBUG
      ${CMAKE_CURRENT_BINARY_DIR})
    SET_TARGET_PROPERTIES(${prefix}_${F} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_RELEASE
      ${CMAKE_CURRENT_BINARY_DIR})
  ENDIF()
ENDMACRO()

# A cmake script to print out information at the end of the configuration step.
MACRO(print_conf_summary)
  MESSAGE("")
  MESSAGE("")
  MESSAGE("Configuration Summary:")
  MESSAGE("")
  MESSAGE(STATUS "Building Shared Libraries:     ${BUILD_SHARED_LIBS}")
  MESSAGE(STATUS "Building netCDF-4:             ${ENABLE_NETCDF_4}")
  MESSAGE(STATUS "Building DAP2 Support:         ${ENABLE_DAP2}")
  MESSAGE(STATUS "Building DAP4 Support:         ${ENABLE_DAP4}")
  MESSAGE(STATUS "Building Utilities:            ${BUILD_UTILITIES}")
  IF(CMAKE_PREFIX_PATH)
    MESSAGE(STATUS "CMake Prefix Path:             ${CMAKE_PREFIX_PATH}")
  ENDIF()
  MESSAGE("")

  IF(${STATUS_PNETCDF} OR ${STATUS_PARALLEL})
    MESSAGE("Building Parallel NetCDF")
    MESSAGE(STATUS "Using pnetcdf:       ${STATUS_PNETCDF}")
    MESSAGE(STATUS "Using Parallel IO:   ${STATUS_PARALLEL}")
    MESSAGE("")
  ENDIF()

  MESSAGE("Tests Enabled:              ${ENABLE_TESTS}")
  IF(ENABLE_TESTS)
    MESSAGE(STATUS "DAP Remote Tests:  ${ENABLE_DAP_REMOTE_TESTS}")
    MESSAGE(STATUS "Extra Tests:       ${ENABLE_EXTRA_TESTS}")
    MESSAGE(STATUS "Coverage Tests:    ${ENABLE_COVERAGE_TESTS}")
    MESSAGE(STATUS "Parallel Tests:    ${ENABLE_PARALLEL_TESTS}")
    MESSAGE(STATUS "Large File Tests:  ${ENABLE_LARGE_FILE_TESTS}")
    MESSAGE(STATUS "Extreme Numbers:   ${ENABLE_EXTREME_NUMBERS}")
  ENDIF()

  MESSAGE("")
  MESSAGE("Compiler:")
  MESSAGE("")
  MESSAGE(STATUS "Build Type:           ${CMAKE_BUILD_TYPE}")
  MESSAGE(STATUS "CMAKE_C_COMPILER:     ${CMAKE_C_COMPILER}")
  MESSAGE(STATUS "CMAKE_C_FLAGS:        ${CMAKE_C_FLAGS}")
  IF("${CMAKE_BUILD_TYPE}" STREQUAL "DEBUG")
    MESSAGE(STATUS "CMAKE_C_FLAGS_DEBUG:  ${CMAKE_C_FLAGS_DEBUG}")
  ENDIF()
  IF("${CMAKE_BUILD_TYPE}" STREQUAL "RELEASE")
    MESSAGE(STATUS "CMAKE_C_FLAGS_RELEASE:   ${CMAKE_C_FLAGS_RELEASE}")
  ENDIF()

  MESSAGE(STATUS "Linking against:      ${ALL_TLL_LIBS}")

  MESSAGE("")
ENDMACRO()
##
# Shell script Macro
##
# Determine if 'bash' is on the system.
##

OPTION(ENABLE_BASH_SCRIPT_TESTING "Detection is typically automatic, but this option can be used to force enable/disable bash-script based tests." ON)

IF(ENABLE_BASH_SCRIPT_TESTING)
  FIND_PROGRAM(HAVE_BASH bash)
  IF(HAVE_BASH)
    STRING(COMPARE EQUAL "${HAVE_BASH}" "C:/Windows/System32/bash.exe" IS_BASH_EXE)
    IF(NOT IS_BASH_EXE)
      MESSAGE(STATUS "Found bash: ${HAVE_BASH}")
    ELSE()
      MESSAGE(STATUS "Ignoring ${HAVE_BASH}")
      SET(HAVE_BASH "")
    ENDIF()
  ELSE()
    MESSAGE(STATUS "Bash shell not found; disabling shell script tests.")
  ENDIF()
ELSE(ENABLE_BASH_SCRIPT_TESTING)
  SET(HAVE_BASH "")
ENDIF(ENABLE_BASH_SCRIPT_TESTING)

MACRO(add_sh_test prefix F)
  IF(HAVE_BASH)
    ADD_TEST(${prefix}_${F} bash "-c" "export srcdir=${CMAKE_CURRENT_SOURCE_DIR};export TOPSRCDIR=${CMAKE_SOURCE_DIR};${CMAKE_CURRENT_BINARY_DIR}/${F}.sh")
  ENDIF()
ENDMACRO()



# A function used to create autotools-style 'yes/no' definitions.
# If a variable is set, it 'yes' is returned. Otherwise, 'no' is
# returned.
#
# Also creates a version of the ret_val prepended with 'NC',
# when feature is true, which is used to generate netcdf_meta.h.
FUNCTION(is_enabled feature ret_val)
  IF(${feature})
    SET(${ret_val} "yes" PARENT_SCOPE)
    SET("NC_${ret_val}" 1 PARENT_SCOPE)
  ELSE()
    SET(${ret_val} "no" PARENT_SCOPE)
    SET("NC_${ret_val}" 0 PARENT_SCOPE)
  ENDIF(${feature})
ENDFUNCTION()

# A function used to create autotools-style 'yes/no' definitions.
# If a variable is set, it 'yes' is returned. Otherwise, 'no' is
# returned.
#
# Also creates a version of the ret_val prepended with 'NC',
# when feature is true, which is used to generate netcdf_meta.h.
FUNCTION(is_disabled feature ret_val)
  IF(${feature})
    SET(${ret_val} "no" PARENT_SCOPE)
  ELSE()
    SET(${ret_val} "yes" PARENT_SCOPE)
    SET("NC_${ret_val}" 1 PARENT_SCOPE)
  ENDIF(${feature})
ENDFUNCTION()

################################
# End Macro Definitions
################################

# Create config.h file.
configure_file("${netCDF_SOURCE_DIR}/config.h.cmake.in"
  "${netCDF_BINARY_DIR}/config.h")
ADD_DEFINITIONS(-DHAVE_CONFIG_H)
INCLUDE_DIRECTORIES(${netCDF_BINARY_DIR})
# End autotools-style checs for config.h

#####
# Set core names of the libraries.
#####
SET(netCDF_LIB_CORENAME  "netcdf")

#####
# Set the true names of all the libraries, if customized by external project
#####
# Recurse into other subdirectories.
add_subdirectory("include")
add_subdirectory(libdispatch)
add_subdirectory(libsrc)

IF(ENABLE_FILTER_TESTING)
add_subdirectory(plugins)
ENDIF()

IF(USE_PNETCDF)
  add_subdirectory(libsrcp)
ENDIF(USE_PNETCDF)

IF(USE_HDF5)
  add_subdirectory(libsrc4)
  add_subdirectory(libhdf5)
ENDIF(USE_HDF5)

IF(USE_HDF4)
  add_subdirectory(libhdf4)
  add_subdirectory(hdf4_test)
ENDIF(USE_HDF4)

IF(ENABLE_DAP2)
  ADD_SUBDIRECTORY(oc2)
  ADD_SUBDIRECTORY(libdap2)
ENDIF()

IF(ENABLE_DAP4)
  ADD_SUBDIRECTORY(libdap4)
ENDIF()

add_subdirectory(liblib)

# For tests and utilities, we are no longer
# exporting symbols but rather importing them.
IF(BUILD_DLL)
  REMOVE_DEFINITIONS(-DDLL_EXPORT)
ENDIF()

# Enable Utilities.
IF(BUILD_UTILITIES)
  INCLUDE_DIRECTORIES(ncdump)
  ADD_SUBDIRECTORY(ncgen)
  ADD_SUBDIRECTORY(ncgen3)
  ADD_SUBDIRECTORY(ncdump)
ENDIF()

# Enable tests
IF(ENABLE_TESTS)
  IF(ENABLE_V2_API)
    ADD_SUBDIRECTORY(nctest)
  ENDIF()
  ADD_SUBDIRECTORY(nc_test)
  IF(USE_NETCDF4)
    INCLUDE_DIRECTORIES(h5_test)
    ADD_SUBDIRECTORY(nc_test4)
    ADD_SUBDIRECTORY(h5_test)
  ENDIF()
  IF(ENABLE_DAP2)
    ADD_SUBDIRECTORY(ncdap_test)
  ENDIF()
  IF(ENABLE_DAP4)
    ADD_SUBDIRECTORY(dap4_test)
  ENDIF()
  IF(ENABLE_EXAMPLES)
    ADD_SUBDIRECTORY(examples)
  ENDIF()
ENDIF()

# Code to generate an export header
#GENERATE_EXPORT_HEADER(netcdf
# BASE_NAME netcdf
# EXPORT_MACRO_NAME netcdf_EXPORT
# EXPORT_FILE_NAME netcdf_Export.h
# STATIC_DEFINE netcdf_BUILT_AS_STATIC
#)

#####
# Build doxygen documentation, if need be.
#####
ADD_SUBDIRECTORY(docs)

##
# Brute force, grab all of the dlls from the dependency directory,
# install them in the binary dir. Grab all of the .libs, put them
# in the libdir.
##
IF(MSVC)
  FILE(GLOB COPY_FILES ${CMAKE_PREFIX_PATH}/lib/*.lib)
  INSTALL(FILES ${COPY_FILES}
  DESTINATION ${CMAKE_INSTALL_LIBDIR}
  COMPONENT dependencies)

  FILE(GLOB COPY_FILES ${CMAKE_PREFIX_PATH}/bin/*.dll)
  STRING(REGEX REPLACE "msv[.*].dll" "" COPY_FILES "${COPY_FILES}")
  INSTALL(FILES ${COPY_FILES}
  DESTINATION ${CMAKE_INSTALL_BINDIR}
  COMPONENT dependencies)

ENDIF()

# Subdirectory CMakeLists.txt files should specify their own
# 'install' files.
# Including 'CPack' kicks everything off.
INCLUDE(InstallRequiredSystemLibraries)
CONFIGURE_FILE(
  ${CMAKE_CURRENT_SOURCE_DIR}/FixBundle.cmake.in
  ${CMAKE_CURRENT_BINARY_DIR}/FixBundle.cmake
  @ONLY
  )

###
# Create pkgconfig files.
###

IF(NOT DEFINED CMAKE_INSTALL_LIBDIR)
  SET(CMAKE_INSTALL_LIBDIR lib)
ENDIF(NOT DEFINED CMAKE_INSTALL_LIBDIR)

# Set
SET(prefix ${CMAKE_INSTALL_PREFIX})
SET(exec_prefix ${CMAKE_INSTALL_PREFIX})
SET(libdir ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR})
SET(includedir ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR})
SET(CC ${CMAKE_C_COMPILER})

# Process all dependency libraries and create a string
# used when parsing netcdf.pc.in

FOREACH(_LIB ${ALL_TLL_LIBS})
  GET_FILENAME_COMPONENT(_LIB_NAME ${_LIB} NAME_WE)
  STRING(REGEX REPLACE "^lib" "" _NAME ${_LIB_NAME})
  LIST(APPEND NC_LIBS "-l${_NAME}")
  GET_FILENAME_COMPONENT(_LIB_DIR ${_LIB} PATH)
  LIST(APPEND LINKFLAGS "-L${_LIB_DIR}")
ENDFOREACH()

SET(NC_LIBS "-lnetcdf ${NC_LIBS}")

STRING(REPLACE ";" " " NC_LIBS "${NC_LIBS}")
STRING(REPLACE "-lhdf5::hdf5-shared" "-lhdf5" NC_LIBS ${NC_LIBS})
STRING(REPLACE "-lhdf5::hdf5_hl-shared" "-lhdf5_hl" NC_LIBS ${NC_LIBS})
STRING(REPLACE "-lhdf5::hdf5-static" "-lhdf5" NC_LIBS ${NC_LIBS})
STRING(REPLACE "-lhdf5::hdf5_hl-static" "-lhdf5_hl" NC_LIBS ${NC_LIBS})


STRING(REPLACE ";" " " LINKFLAGS "${LINKFLAGS}")

LIST(REMOVE_DUPLICATES NC_LIBS)
LIST(REMOVE_DUPLICATES LINKFLAGS)

configure_file(
  ${netCDF_SOURCE_DIR}/netcdf.pc.in
  ${netCDF_BINARY_DIR}/netcdf.pc @ONLY)


IF(NOT IS_DIRECTORY ${netCDF_BINARY_DIR}/tmp)
  FILE(MAKE_DIRECTORY ${netCDF_BINARY_DIR}/tmp)
ENDIF()

configure_file("${netCDF_SOURCE_DIR}/nc-config.cmake.in"
  "${netCDF_BINARY_DIR}/tmp/nc-config" @ONLY
  NEWLINE_STYLE LF)
FILE(COPY "${netCDF_BINARY_DIR}/tmp/nc-config"
  DESTINATION ${netCDF_BINARY_DIR}/
  FILE_PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)

INSTALL(FILES ${netCDF_BINARY_DIR}/netcdf.pc
  DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
  COMPONENT utilities)

INSTALL(PROGRAMS ${netCDF_BINARY_DIR}/nc-config
  DESTINATION ${CMAKE_INSTALL_BINDIR}
  COMPONENT utilities)

###
# End pkgconfig, nc-config file creation.
###

##
# Print the configuration summary
##
print_conf_summary()

# Enable Makedist files.
ADD_MAKEDIST()
ENABLE_MAKEDIST(README.md COPYRIGHT RELEASE_NOTES.md INSTALL INSTALL.cmake test_prog.c lib_flags.am cmake CMakeLists.txt COMPILE.cmake.txt config.h.cmake.in cmake_uninstall.cmake.in netcdf-config-version.cmake.in netcdf-config.cmake.in FixBundle.cmake.in nc-config.cmake.in configure configure.ac install-sh config.h.in config.sub CTestConfig.cmake.in)

#####
# Configure and print the libnetcdf.settings file.
#####

# Set variables to mirror those used by autoconf.
# This way we don't need to maintain two separate template
# files.
SET(host_cpu "${cpu}")
SET(host_vendor "${osname}")
SET(host_os "${osrel}")
SET(abs_top_builddir "${CMAKE_BINARY_DIR}")
SET(abs_top_srcdir "${CMAKE_SOURCE_DIR}")

SET(CC_VERSION "${CMAKE_C_COMPILER}")

# Build *FLAGS for libnetcdf.settings.
SET(CFLAGS "${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE}}")
SET(CPPFLAGS "${CMAKE_CPP_FLAGS} ${CMAKE_CPP_FLAGS_${CMAKE_BUILD_TYPE}}")
SET(LDFLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS_${CMAKE_BUILD_TYPE}}")

is_disabled(BUILD_SHARED_LIBS enable_static)
is_enabled(BUILD_SHARED_LIBS enable_shared)

# Remove libnetcdf from NC_LIBS.
STRING(REPLACE "-lnetcdf " "" TMP_NC_LIBS "${NC_LIBS}")
SET(LIBS "${TMP_NC_LIBS}")

is_enabled(ENABLE_V2_API HAS_NC2)
is_enabled(ENABLE_NETCDF_4 HAS_NC4)
is_enabled(ENABLE_HDF4 HAS_HDF4)
is_enabled(ENABLE_NETCDF_4 HAS_HDF5)
is_enabled(USE_SZIP HAS_SZIP)
is_enabled(STATUS_PNETCDF HAS_PNETCDF)
is_enabled(STATUS_PARALLEL HAS_PARALLEL)
is_enabled(ENABLE_PARALLEL4 HAS_PARALLEL4)
is_enabled(ENABLE_DAP HAS_DAP)
is_enabled(ENABLE_DAP HAS_DAP2)
is_enabled(ENABLE_DAP4 HAS_DAP4)
is_enabled(ENABLE_DISKLESS HAS_DISKLESS)
is_enabled(USE_MMAP HAS_MMAP)
is_enabled(JNA HAS_JNA)
is_enabled(ENABLE_ZERO_LENGTH_COORD_BOUND RELAX_COORD_BOUND)
is_enabled(USE_CDF5 HAS_CDF5)
is_enabled(ENABLE_ERANGE_FILL HAS_ERANGE_FILL)

# Generate file from template.
CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/libnetcdf.settings.in"
  "${CMAKE_CURRENT_BINARY_DIR}/libnetcdf.settings"
  @ONLY)

# Read in settings file, print out.
# Avoid using system-specific calls so that this
# might also work on Windows.
FILE(READ "${CMAKE_CURRENT_BINARY_DIR}/libnetcdf.settings"
  LIBNETCDF_SETTINGS)
MESSAGE(${LIBNETCDF_SETTINGS})

# Install libnetcdf.settings file into same location
# as the libraries.
INSTALL(FILES "${netCDF_BINARY_DIR}/libnetcdf.settings"
  DESTINATION "${CMAKE_INSTALL_LIBDIR}"
  COMPONENT libraries)

#####
# End libnetcdf.settings section.
#####

#####
# Create 'netcdf_meta.h' include file.
#####
configure_file(
  ${netCDF_SOURCE_DIR}/include/netcdf_meta.h.in
  ${netCDF_SOURCE_DIR}/include/netcdf_meta.h @ONLY)

FILE(COPY ${netCDF_SOURCE_DIR}/include/netcdf_meta.h
  DESTINATION ${netCDF_BINARY_DIR}/include/)

#####
# Build test_common.sh
#####
SET(EXTRA_DIST ${EXTRA_DIST} ${CMAKE_SOURCE_DIR}/test_common.in)
SET(TOPSRCDIR "${CMAKE_SOURCE_DIR}")
SET(TOPBUILDDIR "${CMAKE_BINARY_DIR}")
configure_file(${CMAKE_SOURCE_DIR}/test_common.in ${CMAKE_BINARY_DIR}/test_common.sh @ONLY NEWLINE_STYLE LF)

#####
# Build nc_test4/findplugin.sh
#####
SET(ISCMAKE "1")
configure_file(${CMAKE_SOURCE_DIR}/nc_test4/findplugin.in ${CMAKE_BINARY_DIR}/nc_test4/findplugin.sh @ONLY NEWLINE_STYLE LF)

IF(ENABLE_EXAMPLES)
configure_file(${CMAKE_SOURCE_DIR}/nc_test4/findplugin.in ${CMAKE_BINARY_DIR}/examples/C/findplugin.sh @ONLY NEWLINE_STYLE LF)
ENDIF()

####
# Export files
####

# Create CMake package configuration files. With these, other packages using
# cmake should be able to find netcdf using find_package and find_library.
# The EXPORT call is paired with one in liblib.
set(ConfigPackageLocation ${CMAKE_INSTALL_LIBDIR}/cmake/netCDF)

install(EXPORT netCDFTargets
  DESTINATION ${ConfigPackageLocation}
  COMPONENT headers
  )

include(CMakePackageConfigHelpers)
CONFIGURE_PACKAGE_CONFIG_FILE(
  "${CMAKE_CURRENT_SOURCE_DIR}/netCDFConfig.cmake.in"
  "${CMAKE_CURRENT_BINARY_DIR}/netCDFConfig.cmake"
  INSTALL_DESTINATION "${ConfigPackageLocation}"
  NO_CHECK_REQUIRED_COMPONENTS_MACRO
  PATH_VARS
  CMAKE_INSTALL_PREFIX
  CMAKE_INSTALL_INCLUDEDIR
  CMAKE_INSTALL_LIBDIR
  )

INSTALL(
  FILES "${CMAKE_CURRENT_BINARY_DIR}/netCDFConfig.cmake"
  DESTINATION "${ConfigPackageLocation}"
  COMPONENT headers
  )

# Create export configuration
write_basic_package_version_file(
  "${CMAKE_CURRENT_BINARY_DIR}/netCDF/netCDFConfigVersion.cmake"
  VERSION ${netCDF_VERSION}
  COMPATIBILITY SameMajorVersion
  )

install(
  FILES
  "${CMAKE_CURRENT_BINARY_DIR}/netCDF/netCDFConfigVersion.cmake"
  DESTINATION ${ConfigPackageLocation}
  COMPONENT headers
  )

####
# End export files
####



# CPack inclusion must come last.
# INCLUDE(CPack)
INCLUDE(CMakeInstallation.cmake)