Build: Extract `CMAKE_BUILD_UTILITIES` macro into a separate include

The macro was one time used with the comment "Simply to improve readability...".
The result file doesn't have a macro anymore and just included into
the root `CMakeLists.txt`.

CMakeLists.txt

@@ -329,389 +329,6 @@ macro(CMAKE_SET_TARGET_FOLDER tgt folder)
   endif()
 endmacro()
 
-
-#-----------------------------------------------------------------------
-# a macro to build the utilities used by CMake
-# Simply to improve readability of the main script.
-#-----------------------------------------------------------------------
-macro(CMAKE_BUILD_UTILITIES)
-  find_package(Threads)
-
-  # Suppress unnecessary checks in third-party code.
-  include(Utilities/cmThirdPartyChecks.cmake)
-
-  #---------------------------------------------------------------------
-  # Create the kwsys library for CMake.
-  set(KWSYS_NAMESPACE cmsys)
-  set(KWSYS_USE_SystemTools 1)
-  set(KWSYS_USE_Directory 1)
-  set(KWSYS_USE_RegularExpression 1)
-  set(KWSYS_USE_Base64 1)
-  set(KWSYS_USE_MD5 1)
-  set(KWSYS_USE_Process 1)
-  set(KWSYS_USE_CommandLineArguments 1)
-  set(KWSYS_USE_ConsoleBuf 1)
-  set(KWSYS_HEADER_ROOT ${CMake_BINARY_DIR}/Source)
-  set(KWSYS_INSTALL_DOC_DIR "${CMAKE_DOC_DIR}")
-  if(CMake_NO_CXX_STANDARD)
-    set(KWSYS_CXX_STANDARD "")
-  endif()
-  if(CMake_NO_SELF_BACKTRACE)
-    set(KWSYS_NO_EXECINFO 1)
-  endif()
-  if(WIN32)
-    # FIXME: Teach KWSys to hard-code these checks on Windows.
-    set(KWSYS_C_HAS_CLOCK_GETTIME_MONOTONIC_COMPILED 0)
-    set(KWSYS_C_HAS_PTRDIFF_T_COMPILED 1)
-    set(KWSYS_CXX_HAS_ENVIRON_IN_STDLIB_H_COMPILED 1)
-    set(KWSYS_CXX_HAS_RLIMIT64_COMPILED 0)
-    set(KWSYS_CXX_HAS_SETENV_COMPILED 0)
-    set(KWSYS_CXX_HAS_UNSETENV_COMPILED 0)
-    set(KWSYS_CXX_HAS_UTIMENSAT_COMPILED 0)
-    set(KWSYS_CXX_HAS_UTIMES_COMPILED 0)
-    set(KWSYS_CXX_STAT_HAS_ST_MTIM_COMPILED 0)
-    set(KWSYS_CXX_STAT_HAS_ST_MTIMESPEC_COMPILED 0)
-    set(KWSYS_STL_HAS_WSTRING_COMPILED 1)
-    set(KWSYS_SYS_HAS_IFADDRS_H 0)
-  endif()
-  add_subdirectory(Source/kwsys)
-  set(kwsys_folder "Utilities/KWSys")
-  CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE} "${kwsys_folder}")
-  CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}_c "${kwsys_folder}")
-  if(BUILD_TESTING)
-    CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestDynload "${kwsys_folder}")
-    CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestProcess "${kwsys_folder}")
-    CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestsC "${kwsys_folder}")
-    CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestsCxx "${kwsys_folder}")
-    CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestSharedForward "${kwsys_folder}")
-  endif()
-
-  #---------------------------------------------------------------------
-  # Setup third-party libraries.
-  # Everything in the tree should be able to include files from the
-  # Utilities directory.
-  if((CMAKE_SYSTEM_NAME STREQUAL "AIX" OR CMAKE_SYSTEM_NAME STREQUAL "OS400") AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-    # using -isystem option generate error "template with C linkage"
-    include_directories("${CMake_SOURCE_DIR}/Utilities/std")
-  else()
-    include_directories(SYSTEM "${CMake_SOURCE_DIR}/Utilities/std")
-  endif()
-
-  include_directories("${CMake_BINARY_DIR}/Utilities")
-  if((CMAKE_SYSTEM_NAME STREQUAL "AIX" OR CMAKE_SYSTEM_NAME STREQUAL "OS400") AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-    # using -isystem option generate error "template with C linkage"
-    include_directories("${CMake_SOURCE_DIR}/Utilities")
-  else()
-    include_directories(SYSTEM "${CMake_SOURCE_DIR}/Utilities")
-  endif()
-
-  #---------------------------------------------------------------------
-  # Build CMake std library for CMake and CTest.
-  add_subdirectory(Utilities/std)
-  CMAKE_SET_TARGET_FOLDER(cmstd "Utilities/std")
-
-  # check for the use of system libraries versus builtin ones
-  # (a macro defined in this file)
-  CMAKE_HANDLE_SYSTEM_LIBRARIES()
-
-  if(CMAKE_USE_SYSTEM_KWIML)
-    find_package(KWIML 1.0)
-    if(NOT KWIML_FOUND)
-      message(FATAL_ERROR "CMAKE_USE_SYSTEM_KWIML is ON but KWIML is not found!")
-    endif()
-    set(CMake_KWIML_LIBRARIES kwiml::kwiml)
-  else()
-    set(CMake_KWIML_LIBRARIES "")
-    if(BUILD_TESTING)
-      set(KWIML_TEST_ENABLE 1)
-    endif()
-    add_subdirectory(Utilities/KWIML)
-  endif()
-
-  if(CMAKE_USE_SYSTEM_LIBRHASH)
-    find_package(LibRHash)
-    if(NOT LibRHash_FOUND)
-      message(FATAL_ERROR
-        "CMAKE_USE_SYSTEM_LIBRHASH is ON but LibRHash is not found!")
-    endif()
-    set(CMAKE_LIBRHASH_LIBRARIES LibRHash::LibRHash)
-  else()
-    set(CMAKE_LIBRHASH_LIBRARIES cmlibrhash)
-    add_subdirectory(Utilities/cmlibrhash)
-    CMAKE_SET_TARGET_FOLDER(cmlibrhash "Utilities/3rdParty")
-  endif()
-
-  #---------------------------------------------------------------------
-  # Build zlib library for Curl, CMake, and CTest.
-  set(CMAKE_ZLIB_HEADER "cm_zlib.h")
-  if(CMAKE_USE_SYSTEM_ZLIB)
-    find_package(ZLIB)
-    if(NOT ZLIB_FOUND)
-      message(FATAL_ERROR
-        "CMAKE_USE_SYSTEM_ZLIB is ON but a zlib is not found!")
-    endif()
-    set(CMAKE_ZLIB_INCLUDES ${ZLIB_INCLUDE_DIR})
-    set(CMAKE_ZLIB_LIBRARIES ${ZLIB_LIBRARIES})
-  else()
-    set(CMAKE_ZLIB_INCLUDES ${CMake_SOURCE_DIR}/Utilities)
-    set(CMAKE_ZLIB_LIBRARIES cmzlib)
-    set(WITHOUT_ZLIB_DLL "")
-    set(WITHOUT_ZLIB_DLL_WITH_LIB cmzlib)
-    set(ZLIB_DLL "")
-    set(ZLIB_DLL_WITH_LIB cmzlib)
-    set(ZLIB_WINAPI "")
-    set(ZLIB_WINAPI_COMPILED 0)
-    set(ZLIB_WINAPI_WITH_LIB cmzlib)
-    add_subdirectory(Utilities/cmzlib)
-    CMAKE_SET_TARGET_FOLDER(cmzlib "Utilities/3rdParty")
-  endif()
-
-  #---------------------------------------------------------------------
-  # Build Curl library for CTest.
-  if(CMAKE_USE_SYSTEM_CURL)
-    find_package(CURL)
-    if(NOT CURL_FOUND)
-      message(FATAL_ERROR
-        "CMAKE_USE_SYSTEM_CURL is ON but a curl is not found!")
-    endif()
-    set(CMAKE_CURL_INCLUDES ${CURL_INCLUDE_DIRS})
-    set(CMAKE_CURL_LIBRARIES ${CURL_LIBRARIES})
-  else()
-    set(CURL_SPECIAL_ZLIB_H ${CMAKE_ZLIB_HEADER})
-    set(CURL_SPECIAL_LIBZ_INCLUDES ${CMAKE_ZLIB_INCLUDES})
-    set(CURL_SPECIAL_LIBZ ${CMAKE_ZLIB_LIBRARIES})
-    set(CMAKE_CURL_INCLUDES)
-    set(CMAKE_CURL_LIBRARIES cmcurl)
-    if(CMAKE_TESTS_CDASH_SERVER)
-      set(CMAKE_CURL_TEST_URL "${CMAKE_TESTS_CDASH_SERVER}/user.php")
-    endif()
-    set(_CMAKE_USE_OPENSSL_DEFAULT OFF)
-    if(NOT DEFINED CMAKE_USE_OPENSSL AND NOT WIN32 AND NOT APPLE
-        AND CMAKE_SYSTEM_NAME MATCHES "(Linux|FreeBSD)")
-      set(_CMAKE_USE_OPENSSL_DEFAULT ON)
-    endif()
-    option(CMAKE_USE_OPENSSL "Use OpenSSL." ${_CMAKE_USE_OPENSSL_DEFAULT})
-    mark_as_advanced(CMAKE_USE_OPENSSL)
-    if(CMAKE_USE_OPENSSL)
-      set(CURL_CA_BUNDLE "" CACHE FILEPATH "Path to SSL CA Certificate Bundle")
-      set(CURL_CA_PATH "" CACHE PATH "Path to SSL CA Certificate Directory")
-      mark_as_advanced(CURL_CA_BUNDLE CURL_CA_PATH)
-    endif()
-    if(NOT CMAKE_USE_SYSTEM_NGHTTP2)
-      # Tell curl's FindNGHTTP2 module to use our library.
-      set(NGHTTP2_LIBRARY cmnghttp2)
-      set(NGHTTP2_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/cmnghttp2/lib/includes)
-    endif()
-    add_subdirectory(Utilities/cmcurl)
-    CMAKE_SET_TARGET_FOLDER(cmcurl "Utilities/3rdParty")
-    CMAKE_SET_TARGET_FOLDER(LIBCURL "Utilities/3rdParty")
-    if(NOT CMAKE_USE_SYSTEM_NGHTTP2)
-      # Configure after curl to re-use some check results.
-      add_subdirectory(Utilities/cmnghttp2)
-      CMAKE_SET_TARGET_FOLDER(cmnghttp2 "Utilities/3rdParty")
-    endif()
-  endif()
-
-  #---------------------------------------------------------------------
-  # Build expat library for CMake, CTest, and libarchive.
-  if(CMAKE_USE_SYSTEM_EXPAT)
-    find_package(EXPAT)
-    if(NOT EXPAT_FOUND)
-      message(FATAL_ERROR
-        "CMAKE_USE_SYSTEM_EXPAT is ON but a expat is not found!")
-    endif()
-    set(CMAKE_EXPAT_INCLUDES ${EXPAT_INCLUDE_DIRS})
-    set(CMAKE_EXPAT_LIBRARIES ${EXPAT_LIBRARIES})
-  else()
-    set(CMAKE_EXPAT_INCLUDES)
-    set(CMAKE_EXPAT_LIBRARIES cmexpat)
-    add_subdirectory(Utilities/cmexpat)
-    CMAKE_SET_TARGET_FOLDER(cmexpat "Utilities/3rdParty")
-  endif()
-
-  #---------------------------------------------------------------------
-  # Build or use system libbz2 for libarchive.
-  if(NOT CMAKE_USE_SYSTEM_LIBARCHIVE)
-    if(CMAKE_USE_SYSTEM_BZIP2)
-      find_package(BZip2)
-    else()
-      set(BZIP2_INCLUDE_DIR
-        "${CMAKE_CURRENT_SOURCE_DIR}/Utilities/cmbzip2")
-      set(BZIP2_LIBRARIES cmbzip2)
-      set(BZIP2_NEED_PREFIX "")
-      set(USE_BZIP2_DLL "")
-      set(USE_BZIP2_DLL_WITH_LIB cmbzip2)
-      set(USE_BZIP2_STATIC "")
-      set(USE_BZIP2_STATIC_WITH_LIB cmbzip2)
-      add_subdirectory(Utilities/cmbzip2)
-      CMAKE_SET_TARGET_FOLDER(cmbzip2 "Utilities/3rdParty")
-    endif()
-  endif()
-
-  #---------------------------------------------------------------------
-  # Build or use system zstd for libarchive.
-  if(NOT CMAKE_USE_SYSTEM_LIBARCHIVE)
-    if(NOT CMAKE_USE_SYSTEM_ZSTD)
-      set(ZSTD_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/Utilities/cmzstd")
-      set(ZSTD_LIBRARY cmzstd)
-      add_subdirectory(Utilities/cmzstd)
-      CMAKE_SET_TARGET_FOLDER(cmzstd "Utilities/3rdParty")
-    endif()
-  endif()
-
-  #---------------------------------------------------------------------
-  # Build or use system liblzma for libarchive.
-  if(NOT CMAKE_USE_SYSTEM_LIBARCHIVE)
-    if(CMAKE_USE_SYSTEM_LIBLZMA)
-      find_package(LibLZMA)
-      if(NOT LIBLZMA_FOUND)
-        message(FATAL_ERROR "CMAKE_USE_SYSTEM_LIBLZMA is ON but LibLZMA is not found!")
-      endif()
-    else()
-      add_subdirectory(Utilities/cmliblzma)
-      CMAKE_SET_TARGET_FOLDER(cmliblzma "Utilities/3rdParty")
-      set(LIBLZMA_HAS_AUTO_DECODER 1)
-      set(LIBLZMA_HAS_EASY_ENCODER 1)
-      set(LIBLZMA_HAS_LZMA_PRESET 1)
-      set(LIBLZMA_INCLUDE_DIR
-        "${CMAKE_CURRENT_SOURCE_DIR}/Utilities/cmliblzma/liblzma/api")
-      set(LIBLZMA_LIBRARY cmliblzma)
-      set(HAVE_LZMA_STREAM_ENCODER_MT 1)
-    endif()
-  endif()
-
-  #---------------------------------------------------------------------
-  # Build or use system libarchive for CMake and CTest.
-  if(CMAKE_USE_SYSTEM_LIBARCHIVE)
-    find_package(LibArchive 3.3.3)
-    if(NOT LibArchive_FOUND)
-      message(FATAL_ERROR "CMAKE_USE_SYSTEM_LIBARCHIVE is ON but LibArchive is not found!")
-    endif()
-    set(CMAKE_TAR_INCLUDES ${LibArchive_INCLUDE_DIRS})
-    set(CMAKE_TAR_LIBRARIES ${LibArchive_LIBRARIES})
-  else()
-    set(EXPAT_INCLUDE_DIR ${CMAKE_EXPAT_INCLUDES})
-    set(EXPAT_LIBRARY ${CMAKE_EXPAT_LIBRARIES})
-    set(ZLIB_INCLUDE_DIR ${CMAKE_ZLIB_INCLUDES})
-    set(ZLIB_LIBRARY ${CMAKE_ZLIB_LIBRARIES})
-    add_compile_definitions(LIBARCHIVE_STATIC)
-    set(ENABLE_MBEDTLS OFF)
-    set(ENABLE_NETTLE OFF)
-    if(DEFINED CMAKE_USE_OPENSSL)
-      set(ENABLE_OPENSSL "${CMAKE_USE_OPENSSL}")
-    else()
-      set(ENABLE_OPENSSL OFF)
-    endif()
-    set(ENABLE_LIBB2 OFF)
-    set(ENABLE_LZ4 OFF)
-    set(ENABLE_LZO OFF)
-    set(ENABLE_LZMA ON)
-    set(ENABLE_ZSTD ON)
-    set(ENABLE_ZLIB ON)
-    set(ENABLE_BZip2 ON)
-    set(ENABLE_LIBXML2 OFF)
-    set(ENABLE_EXPAT OFF)
-    set(ENABLE_PCREPOSIX OFF)
-    set(ENABLE_LibGCC OFF)
-    set(ENABLE_CNG OFF)
-    set(ENABLE_TAR OFF)
-    set(ENABLE_TAR_SHARED OFF)
-    set(ENABLE_CPIO OFF)
-    set(ENABLE_CPIO_SHARED OFF)
-    set(ENABLE_CAT OFF)
-    set(ENABLE_CAT_SHARED OFF)
-    set(ENABLE_XATTR OFF)
-    set(ENABLE_ACL OFF)
-    set(ENABLE_ICONV OFF)
-    set(ENABLE_TEST OFF)
-    set(ENABLE_COVERAGE OFF)
-    set(ENABLE_INSTALL OFF)
-    set(POSIX_REGEX_LIB "" CACHE INTERNAL "libarchive: No POSIX regular expression support")
-    set(ENABLE_SAFESEH "" CACHE INTERNAL "libarchive: No /SAFESEH linker flag")
-    set(WINDOWS_VERSION "WIN7" CACHE INTERNAL "libarchive: Set Windows version to use (Windows only)")
-    add_subdirectory(Utilities/cmlibarchive)
-    CMAKE_SET_TARGET_FOLDER(cmlibarchive "Utilities/3rdParty")
-    set(CMAKE_TAR_LIBRARIES cmlibarchive ${BZIP2_LIBRARIES})
-  endif()
-
-  #---------------------------------------------------------------------
-  # Build jsoncpp library.
-  if(CMAKE_USE_SYSTEM_JSONCPP)
-    find_package(JsonCpp 1.6.0)
-    if(NOT JsonCpp_FOUND)
-      message(FATAL_ERROR
-        "CMAKE_USE_SYSTEM_JSONCPP is ON but a JsonCpp is not found!")
-    endif()
-    if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|LCC|Clang")
-      set_property(TARGET JsonCpp::JsonCpp APPEND PROPERTY
-        INTERFACE_COMPILE_OPTIONS -Wno-deprecated-declarations)
-    endif()
-    set(CMAKE_JSONCPP_LIBRARIES JsonCpp::JsonCpp)
-  else()
-    set(CMAKE_JSONCPP_LIBRARIES cmjsoncpp)
-    add_subdirectory(Utilities/cmjsoncpp)
-    CMAKE_SET_TARGET_FOLDER(cmjsoncpp "Utilities/3rdParty")
-  endif()
-
-  #---------------------------------------------------------------------
-  # Build libuv library.
-  if(CMAKE_USE_SYSTEM_LIBUV)
-    if(WIN32)
-      find_package(LibUV 1.38.0)
-    else()
-      find_package(LibUV 1.28.0)
-    endif()
-    if(NOT LIBUV_FOUND)
-      message(FATAL_ERROR
-        "CMAKE_USE_SYSTEM_LIBUV is ON but a libuv is not found!")
-    endif()
-    set(CMAKE_LIBUV_LIBRARIES LibUV::LibUV)
-  else()
-    set(CMAKE_LIBUV_LIBRARIES cmlibuv)
-    add_subdirectory(Utilities/cmlibuv)
-    CMAKE_SET_TARGET_FOLDER(cmlibuv "Utilities/3rdParty")
-  endif()
-
-  #---------------------------------------------------------------------
-  # Use curses?
-  if(NOT DEFINED BUILD_CursesDialog)
-    if(UNIX)
-      include(${CMake_SOURCE_DIR}/Source/Checks/Curses.cmake)
-      set(BUILD_CursesDialog_DEFAULT "${CMakeCheckCurses_COMPILED}")
-    elseif(WIN32)
-      set(BUILD_CursesDialog_DEFAULT "OFF")
-    endif()
-    option(BUILD_CursesDialog "Build the CMake Curses Dialog ccmake" "${BUILD_CursesDialog_DEFAULT}")
-  endif()
-  if(BUILD_CursesDialog)
-    if(UNIX)
-      set(CURSES_NEED_NCURSES TRUE)
-      find_package(Curses)
-      if(NOT CURSES_FOUND)
-        message(WARNING
-          "'ccmake' will not be built because Curses was not found.\n"
-          "Turn off BUILD_CursesDialog to suppress this message."
-          )
-        set(BUILD_CursesDialog 0)
-      endif()
-    elseif(WIN32)
-      # FIXME: Add support for system-provided pdcurses.
-      add_subdirectory(Utilities/cmpdcurses)
-      set(CURSES_LIBRARY cmpdcurses)
-      set(CURSES_INCLUDE_PATH "") # cmpdcurses has usage requirements
-      set(CMAKE_USE_SYSTEM_FORM 0)
-      set(HAVE_CURSES_USE_DEFAULT_COLORS 1)
-    endif()
-  endif()
-  if(BUILD_CursesDialog)
-    if(NOT CMAKE_USE_SYSTEM_FORM)
-      add_subdirectory(Source/CursesDialog/form)
-    elseif(NOT CURSES_FORM_LIBRARY)
-      message(FATAL_ERROR "CMAKE_USE_SYSTEM_FORM in ON but CURSES_FORM_LIBRARY is not set!")
-    endif()
-  endif()
-endmacro()
-
 #-----------------------------------------------------------------------
 if(NOT CMake_TEST_EXTERNAL_CMAKE)
   if(CMAKE_CXX_PLATFORM_ID MATCHES "OpenBSD")
@@ -792,8 +409,9 @@ if(CMake_TEST_EXTERNAL_CMAKE)
 endif()
 
 if(NOT CMake_TEST_EXTERNAL_CMAKE)
-  # build the utilities (a macro defined in this file)
-  CMAKE_BUILD_UTILITIES()
+  find_package(Threads)
+  # build the utilities
+  include(CMakeBuildUtilities)
 
   if(BUILD_QtDialog)
     if(APPLE)

Source/CMakeLists.txt

@@ -753,7 +753,8 @@ target_link_libraries(
   PUBLIC
     cmstd
     cmsys
-    ${CMAKE_EXPAT_LIBRARIES} ${CMAKE_ZLIB_LIBRARIES}
+    ${CMAKE_EXPAT_LIBRARIES}
+    ${CMAKE_ZLIB_LIBRARIES}
     ${CMAKE_TAR_LIBRARIES}
     ${CMAKE_CURL_LIBRARIES}
     ${CMAKE_JSONCPP_LIBRARIES}

Source/Modules/CMakeBuildUtilities.cmake

@@ -0,0 +1,383 @@
+#-----------------------------------------------------------------------
+# Build the utilities used by CMake
+#
+# Originally it was a macro in the root `CMakeLists.txt` with the comment
+# "Simply to improve readability...".
+# However, as part of the modernization refactoring it was moved into a
+# separate file cuz adding library alises wasn't possible inside the
+# macro.
+#-----------------------------------------------------------------------
+
+# Suppress unnecessary checks in third-party code.
+include(Utilities/cmThirdPartyChecks.cmake)
+
+#---------------------------------------------------------------------
+# Create the kwsys library for CMake.
+set(KWSYS_NAMESPACE cmsys)
+set(KWSYS_USE_SystemTools 1)
+set(KWSYS_USE_Directory 1)
+set(KWSYS_USE_RegularExpression 1)
+set(KWSYS_USE_Base64 1)
+set(KWSYS_USE_MD5 1)
+set(KWSYS_USE_Process 1)
+set(KWSYS_USE_CommandLineArguments 1)
+set(KWSYS_USE_ConsoleBuf 1)
+set(KWSYS_HEADER_ROOT ${CMake_BINARY_DIR}/Source)
+set(KWSYS_INSTALL_DOC_DIR "${CMAKE_DOC_DIR}")
+if(CMake_NO_CXX_STANDARD)
+  set(KWSYS_CXX_STANDARD "")
+endif()
+if(CMake_NO_SELF_BACKTRACE)
+  set(KWSYS_NO_EXECINFO 1)
+endif()
+if(WIN32)
+  # FIXME: Teach KWSys to hard-code these checks on Windows.
+  set(KWSYS_C_HAS_CLOCK_GETTIME_MONOTONIC_COMPILED 0)
+  set(KWSYS_C_HAS_PTRDIFF_T_COMPILED 1)
+  set(KWSYS_CXX_HAS_ENVIRON_IN_STDLIB_H_COMPILED 1)
+  set(KWSYS_CXX_HAS_RLIMIT64_COMPILED 0)
+  set(KWSYS_CXX_HAS_SETENV_COMPILED 0)
+  set(KWSYS_CXX_HAS_UNSETENV_COMPILED 0)
+  set(KWSYS_CXX_HAS_UTIMENSAT_COMPILED 0)
+  set(KWSYS_CXX_HAS_UTIMES_COMPILED 0)
+  set(KWSYS_CXX_STAT_HAS_ST_MTIM_COMPILED 0)
+  set(KWSYS_CXX_STAT_HAS_ST_MTIMESPEC_COMPILED 0)
+  set(KWSYS_STL_HAS_WSTRING_COMPILED 1)
+  set(KWSYS_SYS_HAS_IFADDRS_H 0)
+endif()
+add_subdirectory(Source/kwsys)
+set(kwsys_folder "Utilities/KWSys")
+CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE} "${kwsys_folder}")
+CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}_c "${kwsys_folder}")
+if(BUILD_TESTING)
+  CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestDynload "${kwsys_folder}")
+  CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestProcess "${kwsys_folder}")
+  CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestsC "${kwsys_folder}")
+  CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestsCxx "${kwsys_folder}")
+  CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestSharedForward "${kwsys_folder}")
+endif()
+
+#---------------------------------------------------------------------
+# Setup third-party libraries.
+# Everything in the tree should be able to include files from the
+# Utilities directory.
+if((CMAKE_SYSTEM_NAME STREQUAL "AIX" OR CMAKE_SYSTEM_NAME STREQUAL "OS400") AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+  # using -isystem option generate error "template with C linkage"
+  include_directories("${CMake_SOURCE_DIR}/Utilities/std")
+else()
+  include_directories(SYSTEM "${CMake_SOURCE_DIR}/Utilities/std")
+endif()
+
+include_directories("${CMake_BINARY_DIR}/Utilities")
+if((CMAKE_SYSTEM_NAME STREQUAL "AIX" OR CMAKE_SYSTEM_NAME STREQUAL "OS400") AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+  # using -isystem option generate error "template with C linkage"
+  include_directories("${CMake_SOURCE_DIR}/Utilities")
+else()
+  include_directories(SYSTEM "${CMake_SOURCE_DIR}/Utilities")
+endif()
+
+#---------------------------------------------------------------------
+# Build CMake std library for CMake and CTest.
+add_subdirectory(Utilities/std)
+CMAKE_SET_TARGET_FOLDER(cmstd "Utilities/std")
+
+# check for the use of system libraries versus builtin ones
+# (a macro defined in this file)
+CMAKE_HANDLE_SYSTEM_LIBRARIES()
+
+if(CMAKE_USE_SYSTEM_KWIML)
+  find_package(KWIML 1.0)
+  if(NOT KWIML_FOUND)
+    message(FATAL_ERROR "CMAKE_USE_SYSTEM_KWIML is ON but KWIML is not found!")
+  endif()
+  set(CMake_KWIML_LIBRARIES kwiml::kwiml)
+else()
+  set(CMake_KWIML_LIBRARIES "")
+  if(BUILD_TESTING)
+    set(KWIML_TEST_ENABLE 1)
+  endif()
+  add_subdirectory(Utilities/KWIML)
+endif()
+
+if(CMAKE_USE_SYSTEM_LIBRHASH)
+  find_package(LibRHash)
+  if(NOT LibRHash_FOUND)
+    message(FATAL_ERROR
+      "CMAKE_USE_SYSTEM_LIBRHASH is ON but LibRHash is not found!")
+  endif()
+  set(CMAKE_LIBRHASH_LIBRARIES LibRHash::LibRHash)
+else()
+  set(CMAKE_LIBRHASH_LIBRARIES cmlibrhash)
+  add_subdirectory(Utilities/cmlibrhash)
+  CMAKE_SET_TARGET_FOLDER(cmlibrhash "Utilities/3rdParty")
+endif()
+
+#---------------------------------------------------------------------
+# Build zlib library for Curl, CMake, and CTest.
+set(CMAKE_ZLIB_HEADER "cm_zlib.h")
+if(CMAKE_USE_SYSTEM_ZLIB)
+  find_package(ZLIB)
+  if(NOT ZLIB_FOUND)
+    message(FATAL_ERROR
+      "CMAKE_USE_SYSTEM_ZLIB is ON but a zlib is not found!")
+  endif()
+  set(CMAKE_ZLIB_INCLUDES ${ZLIB_INCLUDE_DIR})
+  set(CMAKE_ZLIB_LIBRARIES ${ZLIB_LIBRARIES})
+else()
+  set(CMAKE_ZLIB_INCLUDES ${CMake_SOURCE_DIR}/Utilities)
+  set(CMAKE_ZLIB_LIBRARIES cmzlib)
+  set(WITHOUT_ZLIB_DLL "")
+  set(WITHOUT_ZLIB_DLL_WITH_LIB cmzlib)
+  set(ZLIB_DLL "")
+  set(ZLIB_DLL_WITH_LIB cmzlib)
+  set(ZLIB_WINAPI "")
+  set(ZLIB_WINAPI_COMPILED 0)
+  set(ZLIB_WINAPI_WITH_LIB cmzlib)
+  add_subdirectory(Utilities/cmzlib)
+  CMAKE_SET_TARGET_FOLDER(cmzlib "Utilities/3rdParty")
+endif()
+
+#---------------------------------------------------------------------
+# Build Curl library for CTest.
+if(CMAKE_USE_SYSTEM_CURL)
+  find_package(CURL)
+  if(NOT CURL_FOUND)
+    message(FATAL_ERROR
+      "CMAKE_USE_SYSTEM_CURL is ON but a curl is not found!")
+  endif()
+  set(CMAKE_CURL_INCLUDES ${CURL_INCLUDE_DIRS})
+  set(CMAKE_CURL_LIBRARIES ${CURL_LIBRARIES})
+else()
+  set(CURL_SPECIAL_ZLIB_H ${CMAKE_ZLIB_HEADER})
+  set(CURL_SPECIAL_LIBZ_INCLUDES ${CMAKE_ZLIB_INCLUDES})
+  set(CURL_SPECIAL_LIBZ ${CMAKE_ZLIB_LIBRARIES})
+  set(CMAKE_CURL_INCLUDES)
+  set(CMAKE_CURL_LIBRARIES cmcurl)
+  if(CMAKE_TESTS_CDASH_SERVER)
+    set(CMAKE_CURL_TEST_URL "${CMAKE_TESTS_CDASH_SERVER}/user.php")
+  endif()
+  set(_CMAKE_USE_OPENSSL_DEFAULT OFF)
+  if(NOT DEFINED CMAKE_USE_OPENSSL AND NOT WIN32 AND NOT APPLE
+      AND CMAKE_SYSTEM_NAME MATCHES "(Linux|FreeBSD)")
+    set(_CMAKE_USE_OPENSSL_DEFAULT ON)
+  endif()
+  option(CMAKE_USE_OPENSSL "Use OpenSSL." ${_CMAKE_USE_OPENSSL_DEFAULT})
+  mark_as_advanced(CMAKE_USE_OPENSSL)
+  if(CMAKE_USE_OPENSSL)
+    set(CURL_CA_BUNDLE "" CACHE FILEPATH "Path to SSL CA Certificate Bundle")
+    set(CURL_CA_PATH "" CACHE PATH "Path to SSL CA Certificate Directory")
+    mark_as_advanced(CURL_CA_BUNDLE CURL_CA_PATH)
+  endif()
+  if(NOT CMAKE_USE_SYSTEM_NGHTTP2)
+    # Tell curl's FindNGHTTP2 module to use our library.
+    set(NGHTTP2_LIBRARY cmnghttp2)
+    set(NGHTTP2_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/Utilities/cmnghttp2/lib/includes)
+  endif()
+  add_subdirectory(Utilities/cmcurl)
+  CMAKE_SET_TARGET_FOLDER(cmcurl "Utilities/3rdParty")
+  CMAKE_SET_TARGET_FOLDER(LIBCURL "Utilities/3rdParty")
+  if(NOT CMAKE_USE_SYSTEM_NGHTTP2)
+    # Configure after curl to re-use some check results.
+    add_subdirectory(Utilities/cmnghttp2)
+    CMAKE_SET_TARGET_FOLDER(cmnghttp2 "Utilities/3rdParty")
+  endif()
+endif()
+
+#---------------------------------------------------------------------
+# Build expat library for CMake, CTest, and libarchive.
+if(CMAKE_USE_SYSTEM_EXPAT)
+  find_package(EXPAT)
+  if(NOT EXPAT_FOUND)
+    message(FATAL_ERROR
+      "CMAKE_USE_SYSTEM_EXPAT is ON but a expat is not found!")
+  endif()
+  set(CMAKE_EXPAT_INCLUDES ${EXPAT_INCLUDE_DIRS})
+  set(CMAKE_EXPAT_LIBRARIES ${EXPAT_LIBRARIES})
+else()
+  set(CMAKE_EXPAT_INCLUDES)
+  set(CMAKE_EXPAT_LIBRARIES cmexpat)
+  add_subdirectory(Utilities/cmexpat)
+  CMAKE_SET_TARGET_FOLDER(cmexpat "Utilities/3rdParty")
+endif()
+
+#---------------------------------------------------------------------
+# Build or use system libbz2 for libarchive.
+if(NOT CMAKE_USE_SYSTEM_LIBARCHIVE)
+  if(CMAKE_USE_SYSTEM_BZIP2)
+    find_package(BZip2)
+  else()
+    set(BZIP2_INCLUDE_DIR
+      "${CMAKE_CURRENT_SOURCE_DIR}/Utilities/cmbzip2")
+    set(BZIP2_LIBRARIES cmbzip2)
+    set(BZIP2_NEED_PREFIX "")
+    set(USE_BZIP2_DLL "")
+    set(USE_BZIP2_DLL_WITH_LIB cmbzip2)
+    set(USE_BZIP2_STATIC "")
+    set(USE_BZIP2_STATIC_WITH_LIB cmbzip2)
+    add_subdirectory(Utilities/cmbzip2)
+    CMAKE_SET_TARGET_FOLDER(cmbzip2 "Utilities/3rdParty")
+  endif()
+endif()
+
+#---------------------------------------------------------------------
+# Build or use system zstd for libarchive.
+if(NOT CMAKE_USE_SYSTEM_LIBARCHIVE)
+  if(NOT CMAKE_USE_SYSTEM_ZSTD)
+    set(ZSTD_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/Utilities/cmzstd")
+    set(ZSTD_LIBRARY cmzstd)
+    add_subdirectory(Utilities/cmzstd)
+    CMAKE_SET_TARGET_FOLDER(cmzstd "Utilities/3rdParty")
+  endif()
+endif()
+
+#---------------------------------------------------------------------
+# Build or use system liblzma for libarchive.
+if(NOT CMAKE_USE_SYSTEM_LIBARCHIVE)
+  if(CMAKE_USE_SYSTEM_LIBLZMA)
+    find_package(LibLZMA)
+    if(NOT LIBLZMA_FOUND)
+      message(FATAL_ERROR "CMAKE_USE_SYSTEM_LIBLZMA is ON but LibLZMA is not found!")
+    endif()
+  else()
+    add_subdirectory(Utilities/cmliblzma)
+    CMAKE_SET_TARGET_FOLDER(cmliblzma "Utilities/3rdParty")
+    set(LIBLZMA_HAS_AUTO_DECODER 1)
+    set(LIBLZMA_HAS_EASY_ENCODER 1)
+    set(LIBLZMA_HAS_LZMA_PRESET 1)
+    set(LIBLZMA_INCLUDE_DIR
+      "${CMAKE_CURRENT_SOURCE_DIR}/Utilities/cmliblzma/liblzma/api")
+    set(LIBLZMA_LIBRARY cmliblzma)
+    set(HAVE_LZMA_STREAM_ENCODER_MT 1)
+  endif()
+endif()
+
+#---------------------------------------------------------------------
+# Build or use system libarchive for CMake and CTest.
+if(CMAKE_USE_SYSTEM_LIBARCHIVE)
+  find_package(LibArchive 3.3.3)
+  if(NOT LibArchive_FOUND)
+    message(FATAL_ERROR "CMAKE_USE_SYSTEM_LIBARCHIVE is ON but LibArchive is not found!")
+  endif()
+  set(CMAKE_TAR_INCLUDES ${LibArchive_INCLUDE_DIRS})
+  set(CMAKE_TAR_LIBRARIES ${LibArchive_LIBRARIES})
+else()
+  set(EXPAT_INCLUDE_DIR ${CMAKE_EXPAT_INCLUDES})
+  set(EXPAT_LIBRARY ${CMAKE_EXPAT_LIBRARIES})
+  set(ZLIB_INCLUDE_DIR ${CMAKE_ZLIB_INCLUDES})
+  set(ZLIB_LIBRARY ${CMAKE_ZLIB_LIBRARIES})
+  add_compile_definitions(LIBARCHIVE_STATIC)
+  set(ENABLE_MBEDTLS OFF)
+  set(ENABLE_NETTLE OFF)
+  if(DEFINED CMAKE_USE_OPENSSL)
+    set(ENABLE_OPENSSL "${CMAKE_USE_OPENSSL}")
+  else()
+    set(ENABLE_OPENSSL OFF)
+  endif()
+  set(ENABLE_LIBB2 OFF)
+  set(ENABLE_LZ4 OFF)
+  set(ENABLE_LZO OFF)
+  set(ENABLE_LZMA ON)
+  set(ENABLE_ZSTD ON)
+  set(ENABLE_ZLIB ON)
+  set(ENABLE_BZip2 ON)
+  set(ENABLE_LIBXML2 OFF)
+  set(ENABLE_EXPAT OFF)
+  set(ENABLE_PCREPOSIX OFF)
+  set(ENABLE_LibGCC OFF)
+  set(ENABLE_CNG OFF)
+  set(ENABLE_TAR OFF)
+  set(ENABLE_TAR_SHARED OFF)
+  set(ENABLE_CPIO OFF)
+  set(ENABLE_CPIO_SHARED OFF)
+  set(ENABLE_CAT OFF)
+  set(ENABLE_CAT_SHARED OFF)
+  set(ENABLE_XATTR OFF)
+  set(ENABLE_ACL OFF)
+  set(ENABLE_ICONV OFF)
+  set(ENABLE_TEST OFF)
+  set(ENABLE_COVERAGE OFF)
+  set(ENABLE_INSTALL OFF)
+  set(POSIX_REGEX_LIB "" CACHE INTERNAL "libarchive: No POSIX regular expression support")
+  set(ENABLE_SAFESEH "" CACHE INTERNAL "libarchive: No /SAFESEH linker flag")
+  set(WINDOWS_VERSION "WIN7" CACHE INTERNAL "libarchive: Set Windows version to use (Windows only)")
+  add_subdirectory(Utilities/cmlibarchive)
+  CMAKE_SET_TARGET_FOLDER(cmlibarchive "Utilities/3rdParty")
+  set(CMAKE_TAR_LIBRARIES cmlibarchive ${BZIP2_LIBRARIES})
+endif()
+
+#---------------------------------------------------------------------
+# Build jsoncpp library.
+if(CMAKE_USE_SYSTEM_JSONCPP)
+  find_package(JsonCpp 1.6.0)
+  if(NOT JsonCpp_FOUND)
+    message(FATAL_ERROR
+      "CMAKE_USE_SYSTEM_JSONCPP is ON but a JsonCpp is not found!")
+  endif()
+  if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|LCC|Clang")
+    set_property(TARGET JsonCpp::JsonCpp APPEND PROPERTY
+      INTERFACE_COMPILE_OPTIONS -Wno-deprecated-declarations)
+  endif()
+  set(CMAKE_JSONCPP_LIBRARIES JsonCpp::JsonCpp)
+else()
+  set(CMAKE_JSONCPP_LIBRARIES cmjsoncpp)
+  add_subdirectory(Utilities/cmjsoncpp)
+  CMAKE_SET_TARGET_FOLDER(cmjsoncpp "Utilities/3rdParty")
+endif()
+
+#---------------------------------------------------------------------
+# Build libuv library.
+if(CMAKE_USE_SYSTEM_LIBUV)
+  if(WIN32)
+    find_package(LibUV 1.38.0)
+  else()
+    find_package(LibUV 1.28.0)
+  endif()
+  if(NOT LIBUV_FOUND)
+    message(FATAL_ERROR
+      "CMAKE_USE_SYSTEM_LIBUV is ON but a libuv is not found!")
+  endif()
+  set(CMAKE_LIBUV_LIBRARIES LibUV::LibUV)
+else()
+  set(CMAKE_LIBUV_LIBRARIES cmlibuv)
+  add_subdirectory(Utilities/cmlibuv)
+  CMAKE_SET_TARGET_FOLDER(cmlibuv "Utilities/3rdParty")
+endif()
+
+#---------------------------------------------------------------------
+# Use curses?
+if(NOT DEFINED BUILD_CursesDialog)
+  if(UNIX)
+    include(${CMake_SOURCE_DIR}/Source/Checks/Curses.cmake)
+    set(BUILD_CursesDialog_DEFAULT "${CMakeCheckCurses_COMPILED}")
+  elseif(WIN32)
+    set(BUILD_CursesDialog_DEFAULT "OFF")
+  endif()
+  option(BUILD_CursesDialog "Build the CMake Curses Dialog ccmake" "${BUILD_CursesDialog_DEFAULT}")
+endif()
+if(BUILD_CursesDialog)
+  if(UNIX)
+    set(CURSES_NEED_NCURSES TRUE)
+    find_package(Curses)
+    if(NOT CURSES_FOUND)
+      message(WARNING
+        "'ccmake' will not be built because Curses was not found.\n"
+        "Turn off BUILD_CursesDialog to suppress this message."
+        )
+      set(BUILD_CursesDialog 0)
+    endif()
+  elseif(WIN32)
+    # FIXME: Add support for system-provided pdcurses.
+    add_subdirectory(Utilities/cmpdcurses)
+    set(CURSES_LIBRARY cmpdcurses)
+    set(CURSES_INCLUDE_PATH "") # cmpdcurses has usage requirements
+    set(CMAKE_USE_SYSTEM_FORM 0)
+    set(HAVE_CURSES_USE_DEFAULT_COLORS 1)
+  endif()
+endif()
+if(BUILD_CursesDialog)
+  if(NOT CMAKE_USE_SYSTEM_FORM)
+    add_subdirectory(Source/CursesDialog/form)
+  elseif(NOT CURSES_FORM_LIBRARY)
+    message(FATAL_ERROR "CMAKE_USE_SYSTEM_FORM in ON but CURSES_FORM_LIBRARY is not set!")
+  endif()
+endif()