CMakeLists.txt

   1 # Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   2 # file Copyright.txt or https://cmake.org/licensing for details.
   3
   4 cmake_minimum_required(VERSION 2.8.12.2 FATAL_ERROR)
   5 if(POLICY CMP0025)
   6   cmake_policy(SET CMP0025 NEW)
   7 endif()
   8 if(POLICY CMP0053)
   9   cmake_policy(SET CMP0053 NEW)
  10 endif()
  11 project(CMake)
  12
  13 # Make sure we can find internal find_package modules only used for
  14 # building CMake and not for shipping externally
  15 list(INSERT CMAKE_MODULE_PATH 0 ${CMake_SOURCE_DIR}/Source/Modules)
  16
  17 if(CMAKE_BOOTSTRAP)
  18   # Running from bootstrap script.  Set local variable and remove from cache.
  19   set(CMAKE_BOOTSTRAP 1)
  20   unset(CMAKE_BOOTSTRAP CACHE)
  21 endif()
  22
  23 if(NOT CMake_TEST_EXTERNAL_CMAKE)
  24   set(CMake_BIN_DIR ${CMake_BINARY_DIR}/bin)
  25 endif()
  26
  27 if(CMake_GUI_DISTRIBUTE_WITH_Qt_LGPL)
  28   if(CMake_GUI_DISTRIBUTE_WITH_Qt_LGPL MATCHES "^3|2\\.1$")
  29     set(USE_LGPL "${CMake_GUI_DISTRIBUTE_WITH_Qt_LGPL}")
  30   else()
  31     set(USE_LGPL "2.1")
  32   endif()
  33 else()
  34   set(USE_LGPL "")
  35 endif()
  36
  37 if("${CMake_SOURCE_DIR}" STREQUAL "${CMAKE_SOURCE_DIR}")
  38   # Disallow architecture-specific try_run.  It may not run on the host.
  39   macro(TRY_RUN)
  40     if(CMAKE_TRY_COMPILE_OSX_ARCHITECTURES)
  41       message(FATAL_ERROR "TRY_RUN not allowed with CMAKE_TRY_COMPILE_OSX_ARCHITECTURES=[${CMAKE_TRY_COMPILE_OSX_ARCHITECTURES}]")
  42     else()
  43       _TRY_RUN(${ARGV})
  44     endif()
  45   endmacro()
  46 endif()
  47
  48 # Use most-recent available language dialects with GNU and Clang
  49 if(NOT DEFINED CMAKE_C_STANDARD AND NOT CMake_NO_C_STANDARD)
  50   include(${CMake_SOURCE_DIR}/Source/Checks/cm_c11_thread_local.cmake)
  51   if(NOT CMake_C11_THREAD_LOCAL_BROKEN)
  52     set(CMAKE_C_STANDARD 11)
  53   else()
  54     set(CMAKE_C_STANDARD 99)
  55   endif()
  56 endif()
  57 if(NOT DEFINED CMAKE_CXX_STANDARD AND NOT CMake_NO_CXX_STANDARD)
  58   if (CMAKE_CXX_COMPILER_ID STREQUAL SunPro AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.14)
  59     set(CMAKE_CXX_STANDARD 98)
  60   else()
  61     include(${CMake_SOURCE_DIR}/Source/Checks/cm_cxx14_cstdio.cmake)
  62     if(NOT CMake_CXX14_CSTDIO_BROKEN)
  63       set(CMAKE_CXX_STANDARD 14)
  64     else()
  65       set(CMAKE_CXX_STANDARD 11)
  66     endif()
  67   endif()
  68 endif()
  69 if(NOT CMake_TEST_EXTERNAL_CMAKE)
  70   # include special compile flags for some compilers
  71   include(CompileFlags.cmake)
  72
  73   # check for available C++ features
  74   include(${CMake_SOURCE_DIR}/Source/Checks/cm_cxx_features.cmake)
  75 endif()
  76
  77 # set the internal encoding of CMake to UTF-8
  78 set(KWSYS_ENCODING_DEFAULT_CODEPAGE CP_UTF8)
  79
  80 # option to use COMPONENT with install command
  81 option(CMake_INSTALL_COMPONENTS "Using components when installing" OFF)
  82 mark_as_advanced(CMake_INSTALL_COMPONENTS)
  83 macro(CMake_OPTIONAL_COMPONENT NAME)
  84   if(CMake_INSTALL_COMPONENTS)
  85     set(COMPONENT COMPONENT ${NAME})
  86   else()
  87     set(COMPONENT)
  88   endif()
  89 endmacro()
  90
  91 # option to disable installing 3rd-party dependencies
  92 option(CMake_INSTALL_DEPENDENCIES
  93   "Whether to install 3rd-party runtime dependencies" OFF)
  94 mark_as_advanced(CMake_INSTALL_DEPENDENCIES)
  95
  96 # option to build reference for CMake developers
  97 option(CMake_BUILD_DEVELOPER_REFERENCE
  98   "Build CMake Developer Reference" OFF)
  99 mark_as_advanced(CMake_BUILD_DEVELOPER_REFERENCE)
 100
 101 #-----------------------------------------------------------------------
 102 # a macro to deal with system libraries, implemented as a macro
 103 # simply to improve readability of the main script
 104 #-----------------------------------------------------------------------
 105 macro(CMAKE_HANDLE_SYSTEM_LIBRARIES)
 106   # Options have dependencies.
 107   include(CMakeDependentOption)
 108
 109   # Optionally use system xmlrpc.  We no longer build or use it by default.
 110   option(CTEST_USE_XMLRPC "Enable xmlrpc submission method in CTest." OFF)
 111   mark_as_advanced(CTEST_USE_XMLRPC)
 112
 113   # Allow the user to enable/disable all system utility library options by
 114   # defining CMAKE_USE_SYSTEM_LIBRARIES or CMAKE_USE_SYSTEM_LIBRARY_${util}.
 115   set(UTILITIES BZIP2 CURL EXPAT FORM JSONCPP LIBARCHIVE LIBLZMA LIBRHASH LIBUV ZLIB)
 116   foreach(util ${UTILITIES})
 117     if(NOT DEFINED CMAKE_USE_SYSTEM_LIBRARY_${util}
 118         AND DEFINED CMAKE_USE_SYSTEM_LIBRARIES)
 119       set(CMAKE_USE_SYSTEM_LIBRARY_${util} "${CMAKE_USE_SYSTEM_LIBRARIES}")
 120     endif()
 121     if(DEFINED CMAKE_USE_SYSTEM_LIBRARY_${util})
 122       if(CMAKE_USE_SYSTEM_LIBRARY_${util})
 123         set(CMAKE_USE_SYSTEM_LIBRARY_${util} ON)
 124       else()
 125         set(CMAKE_USE_SYSTEM_LIBRARY_${util} OFF)
 126       endif()
 127       if(CMAKE_BOOTSTRAP)
 128         unset(CMAKE_USE_SYSTEM_LIBRARY_${util} CACHE)
 129       endif()
 130       string(TOLOWER "${util}" lutil)
 131       set(CMAKE_USE_SYSTEM_${util} "${CMAKE_USE_SYSTEM_LIBRARY_${util}}"
 132         CACHE BOOL "Use system-installed ${lutil}" FORCE)
 133     else()
 134       set(CMAKE_USE_SYSTEM_LIBRARY_${util} OFF)
 135     endif()
 136   endforeach()
 137   if(CMAKE_BOOTSTRAP)
 138     unset(CMAKE_USE_SYSTEM_LIBRARIES CACHE)
 139   endif()
 140
 141   # Optionally use system utility libraries.
 142   option(CMAKE_USE_SYSTEM_LIBARCHIVE "Use system-installed libarchive" "${CMAKE_USE_SYSTEM_LIBRARY_LIBARCHIVE}")
 143   CMAKE_DEPENDENT_OPTION(CMAKE_USE_SYSTEM_CURL "Use system-installed curl"
 144     "${CMAKE_USE_SYSTEM_LIBRARY_CURL}" "NOT CTEST_USE_XMLRPC" ON)
 145   CMAKE_DEPENDENT_OPTION(CMAKE_USE_SYSTEM_EXPAT "Use system-installed expat"
 146     "${CMAKE_USE_SYSTEM_LIBRARY_EXPAT}" "NOT CTEST_USE_XMLRPC" ON)
 147   CMAKE_DEPENDENT_OPTION(CMAKE_USE_SYSTEM_ZLIB "Use system-installed zlib"
 148     "${CMAKE_USE_SYSTEM_LIBRARY_ZLIB}" "NOT CMAKE_USE_SYSTEM_LIBARCHIVE;NOT CMAKE_USE_SYSTEM_CURL" ON)
 149   CMAKE_DEPENDENT_OPTION(CMAKE_USE_SYSTEM_BZIP2 "Use system-installed bzip2"
 150     "${CMAKE_USE_SYSTEM_LIBRARY_BZIP2}" "NOT CMAKE_USE_SYSTEM_LIBARCHIVE" ON)
 151   CMAKE_DEPENDENT_OPTION(CMAKE_USE_SYSTEM_LIBLZMA "Use system-installed liblzma"
 152     "${CMAKE_USE_SYSTEM_LIBRARY_LIBLZMA}" "NOT CMAKE_USE_SYSTEM_LIBARCHIVE" ON)
 153   option(CMAKE_USE_SYSTEM_FORM "Use system-installed libform" "${CMAKE_USE_SYSTEM_LIBRARY_FORM}")
 154   option(CMAKE_USE_SYSTEM_JSONCPP "Use system-installed jsoncpp" "${CMAKE_USE_SYSTEM_LIBRARY_JSONCPP}")
 155   option(CMAKE_USE_SYSTEM_LIBRHASH "Use system-installed librhash" "${CMAKE_USE_SYSTEM_LIBRARY_LIBRHASH}")
 156   option(CMAKE_USE_SYSTEM_LIBUV "Use system-installed libuv" "${CMAKE_USE_SYSTEM_LIBRARY_LIBUV}")
 157
 158   # For now use system KWIML only if explicitly requested rather
 159   # than activating via the general system libs options.
 160   option(CMAKE_USE_SYSTEM_KWIML "Use system-installed KWIML" OFF)
 161   mark_as_advanced(CMAKE_USE_SYSTEM_KWIML)
 162
 163   # Mention to the user what system libraries are being used.
 164   foreach(util ${UTILITIES} KWIML)
 165     if(CMAKE_USE_SYSTEM_${util})
 166       message(STATUS "Using system-installed ${util}")
 167     endif()
 168   endforeach()
 169
 170   # Inform utility library header wrappers whether to use system versions.
 171   configure_file(${CMake_SOURCE_DIR}/Utilities/cmThirdParty.h.in
 172     ${CMake_BINARY_DIR}/Utilities/cmThirdParty.h
 173     @ONLY)
 174
 175 endmacro()
 176
 177 #-----------------------------------------------------------------------
 178 # a macro to determine the generator and ctest executable to use
 179 # for testing. Simply to improve readability of the main script.
 180 #-----------------------------------------------------------------------
 181 macro(CMAKE_SETUP_TESTING)
 182   if(BUILD_TESTING)
 183     set(CMAKE_TEST_SYSTEM_LIBRARIES 0)
 184     foreach(util CURL EXPAT XMLRPC ZLIB)
 185       if(CMAKE_USE_SYSTEM_${util})
 186         set(CMAKE_TEST_SYSTEM_LIBRARIES 1)
 187       endif()
 188     endforeach()
 189
 190     # This variable is set by cmake, however to
 191     # test cmake we want to make sure that
 192     # the ctest from this cmake is used for testing
 193     # and not the ctest from the cmake building and testing
 194     # cmake.
 195     if(CMake_TEST_EXTERNAL_CMAKE)
 196       set(CMAKE_CTEST_COMMAND "${CMake_TEST_EXTERNAL_CMAKE}/ctest")
 197       set(CMAKE_CMAKE_COMMAND "${CMake_TEST_EXTERNAL_CMAKE}/cmake")
 198       set(CMAKE_CPACK_COMMAND "${CMake_TEST_EXTERNAL_CMAKE}/cpack")
 199       foreach(exe cmake ctest cpack)
 200         add_executable(${exe} IMPORTED)
 201         set_property(TARGET ${exe} PROPERTY IMPORTED_LOCATION ${CMake_TEST_EXTERNAL_CMAKE}/${exe})
 202       endforeach()
 203     else()
 204       set(CMAKE_CTEST_COMMAND "${CMake_BIN_DIR}/ctest")
 205       set(CMAKE_CMAKE_COMMAND "${CMake_BIN_DIR}/cmake")
 206       set(CMAKE_CPACK_COMMAND "${CMake_BIN_DIR}/cpack")
 207     endif()
 208   endif()
 209
 210   # configure some files for testing
 211   configure_file("${CMAKE_CURRENT_SOURCE_DIR}/Templates/CTestScript.cmake.in"
 212     "${CMAKE_CURRENT_BINARY_DIR}/CTestScript.cmake"
 213     @ONLY)
 214   configure_file(${CMake_SOURCE_DIR}/Tests/.NoDartCoverage
 215     ${CMake_BINARY_DIR}/Tests/.NoDartCoverage)
 216   configure_file(${CMake_SOURCE_DIR}/Tests/.NoDartCoverage
 217     ${CMake_BINARY_DIR}/Modules/.NoDartCoverage)
 218   configure_file(${CMake_SOURCE_DIR}/CTestCustom.cmake.in
 219     ${CMake_BINARY_DIR}/CTestCustom.cmake @ONLY)
 220   if(BUILD_TESTING AND DART_ROOT)
 221     configure_file(${CMake_SOURCE_DIR}/CMakeLogo.gif
 222       ${CMake_BINARY_DIR}/Testing/HTML/TestingResults/Icons/Logo.gif COPYONLY)
 223   endif()
 224   mark_as_advanced(DART_ROOT)
 225   mark_as_advanced(CURL_TESTING)
 226 endmacro()
 227
 228
 229 # Provide a way for Visual Studio Express users to turn OFF the new FOLDER
 230 # organization feature. Default to ON for non-Express users. Express users must
 231 # explicitly turn off this option to build CMake in the Express IDE...
 232 #
 233 option(CMAKE_USE_FOLDERS "Enable folder grouping of projects in IDEs." ON)
 234 mark_as_advanced(CMAKE_USE_FOLDERS)
 235
 236
 237 option(CMake_RUN_CLANG_TIDY "Run clang-tidy with the compiler." OFF)
 238 if(CMake_RUN_CLANG_TIDY)
 239   if(CMake_SOURCE_DIR STREQUAL CMake_BINARY_DIR)
 240     message(FATAL_ERROR "CMake_RUN_CLANG_TIDY requires an out-of-source build!")
 241   endif()
 242   find_program(CLANG_TIDY_COMMAND NAMES clang-tidy)
 243   if(NOT CLANG_TIDY_COMMAND)
 244     message(FATAL_ERROR "CMake_RUN_CLANG_TIDY is ON but clang-tidy is not found!")
 245   endif()
 246   set(CMAKE_CXX_CLANG_TIDY "${CLANG_TIDY_COMMAND}")
 247 endif()
 248 configure_file(.clang-tidy .clang-tidy COPYONLY)
 249
 250
 251 option(CMake_RUN_IWYU "Run include-what-you-use with the compiler." OFF)
 252 if(CMake_RUN_IWYU)
 253   find_program(IWYU_COMMAND NAMES include-what-you-use iwyu)
 254   if(NOT IWYU_COMMAND)
 255     message(FATAL_ERROR "CMake_RUN_IWYU is ON but include-what-you-use is not found!")
 256   endif()
 257   set(CMAKE_CXX_INCLUDE_WHAT_YOU_USE
 258     "${IWYU_COMMAND};-Xiwyu;--mapping_file=${CMake_SOURCE_DIR}/Utilities/IWYU/mapping.imp")
 259 endif()
 260
 261
 262 #-----------------------------------------------------------------------
 263 # a macro that only sets the FOLDER target property if it's
 264 # "appropriate"
 265 #-----------------------------------------------------------------------
 266 macro(CMAKE_SET_TARGET_FOLDER tgt folder)
 267   if(CMAKE_USE_FOLDERS)
 268     set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 269     if(MSVC AND TARGET ${tgt})
 270       set_property(TARGET "${tgt}" PROPERTY FOLDER "${folder}")
 271     endif()
 272   else()
 273     set_property(GLOBAL PROPERTY USE_FOLDERS OFF)
 274   endif()
 275 endmacro()
 276
 277
 278 #-----------------------------------------------------------------------
 279 # a macro to build the utilities used by CMake
 280 # Simply to improve readability of the main script.
 281 #-----------------------------------------------------------------------
 282 macro (CMAKE_BUILD_UTILITIES)
 283   #---------------------------------------------------------------------
 284   # Create the kwsys library for CMake.
 285   set(KWSYS_NAMESPACE cmsys)
 286   set(KWSYS_USE_SystemTools 1)
 287   set(KWSYS_USE_Directory 1)
 288   set(KWSYS_USE_RegularExpression 1)
 289   set(KWSYS_USE_Base64 1)
 290   set(KWSYS_USE_MD5 1)
 291   set(KWSYS_USE_Process 1)
 292   set(KWSYS_USE_CommandLineArguments 1)
 293   set(KWSYS_USE_ConsoleBuf 1)
 294   set(KWSYS_HEADER_ROOT ${CMake_BINARY_DIR}/Source)
 295   set(KWSYS_INSTALL_DOC_DIR "${CMAKE_DOC_DIR}")
 296   add_subdirectory(Source/kwsys)
 297   set(kwsys_folder "Utilities/KWSys")
 298   CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE} "${kwsys_folder}")
 299   CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}_c "${kwsys_folder}")
 300   if(BUILD_TESTING)
 301     CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestDynload "${kwsys_folder}")
 302     CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestProcess "${kwsys_folder}")
 303     CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestsC "${kwsys_folder}")
 304     CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestsCxx "${kwsys_folder}")
 305     CMAKE_SET_TARGET_FOLDER(${KWSYS_NAMESPACE}TestSharedForward "${kwsys_folder}")
 306   endif()
 307
 308   #---------------------------------------------------------------------
 309   # Setup third-party libraries.
 310   # Everything in the tree should be able to include files from the
 311   # Utilities directory.
 312   include_directories(
 313     ${CMake_BINARY_DIR}/Utilities
 314     ${CMake_SOURCE_DIR}/Utilities
 315     )
 316
 317   # check for the use of system libraries versus builtin ones
 318   # (a macro defined in this file)
 319   CMAKE_HANDLE_SYSTEM_LIBRARIES()
 320
 321   if(CMAKE_USE_SYSTEM_KWIML)
 322     find_package(KWIML 1.0)
 323     if(NOT KWIML_FOUND)
 324       message(FATAL_ERROR "CMAKE_USE_SYSTEM_KWIML is ON but KWIML is not found!")
 325     endif()
 326     set(CMake_KWIML_LIBRARIES kwiml::kwiml)
 327   else()
 328     set(CMake_KWIML_LIBRARIES "")
 329     if(BUILD_TESTING)
 330       set(KWIML_TEST_ENABLE 1)
 331     endif()
 332     add_subdirectory(Utilities/KWIML)
 333   endif()
 334
 335   if(CMAKE_USE_SYSTEM_LIBRHASH)
 336     if(NOT CMAKE_VERSION VERSION_LESS 3.0)
 337       find_package(LibRHash)
 338     else()
 339       message(FATAL_ERROR "CMAKE_USE_SYSTEM_LIBRHASH requires CMake >= 3.0")
 340     endif()
 341     if(NOT LibRHash_FOUND)
 342       message(FATAL_ERROR
 343         "CMAKE_USE_SYSTEM_LIBRHASH is ON but LibRHash is not found!")
 344     endif()
 345     set(CMAKE_LIBRHASH_LIBRARIES LibRHash::LibRHash)
 346   else()
 347     set(CMAKE_LIBRHASH_LIBRARIES cmlibrhash)
 348     add_subdirectory(Utilities/cmlibrhash)
 349     CMAKE_SET_TARGET_FOLDER(cmlibrhash "Utilities/3rdParty")
 350   endif()
 351
 352   #---------------------------------------------------------------------
 353   # Build zlib library for Curl, CMake, and CTest.
 354   set(CMAKE_ZLIB_HEADER "cm_zlib.h")
 355   if(CMAKE_USE_SYSTEM_ZLIB)
 356     find_package(ZLIB)
 357     if(NOT ZLIB_FOUND)
 358       message(FATAL_ERROR
 359         "CMAKE_USE_SYSTEM_ZLIB is ON but a zlib is not found!")
 360     endif()
 361     set(CMAKE_ZLIB_INCLUDES ${ZLIB_INCLUDE_DIR})
 362     set(CMAKE_ZLIB_LIBRARIES ${ZLIB_LIBRARIES})
 363   else()
 364     set(CMAKE_ZLIB_INCLUDES ${CMake_SOURCE_DIR}/Utilities)
 365     set(CMAKE_ZLIB_LIBRARIES cmzlib)
 366     add_subdirectory(Utilities/cmzlib)
 367     CMAKE_SET_TARGET_FOLDER(cmzlib "Utilities/3rdParty")
 368   endif()
 369
 370   #---------------------------------------------------------------------
 371   # Build Curl library for CTest.
 372   if(CMAKE_USE_SYSTEM_CURL)
 373     find_package(CURL)
 374     if(NOT CURL_FOUND)
 375       message(FATAL_ERROR
 376         "CMAKE_USE_SYSTEM_CURL is ON but a curl is not found!")
 377     endif()
 378     set(CMAKE_CURL_INCLUDES ${CURL_INCLUDE_DIRS})
 379     set(CMAKE_CURL_LIBRARIES ${CURL_LIBRARIES})
 380   else()
 381     set(CURL_SPECIAL_ZLIB_H ${CMAKE_ZLIB_HEADER})
 382     set(CURL_SPECIAL_LIBZ_INCLUDES ${CMAKE_ZLIB_INCLUDES})
 383     set(CURL_SPECIAL_LIBZ ${CMAKE_ZLIB_LIBRARIES})
 384     add_definitions(-DCURL_STATICLIB)
 385     set(CMAKE_CURL_INCLUDES)
 386     set(CMAKE_CURL_LIBRARIES cmcurl)
 387     if(CMAKE_TESTS_CDASH_SERVER)
 388       set(CMAKE_CURL_TEST_URL "${CMAKE_TESTS_CDASH_SERVER}/user.php")
 389     endif()
 390     set(_CMAKE_USE_OPENSSL_DEFAULT OFF)
 391     if(NOT DEFINED CMAKE_USE_OPENSSL AND NOT WIN32 AND NOT APPLE
 392         AND CMAKE_SYSTEM_NAME MATCHES "(Linux|FreeBSD)")
 393       find_package(OpenSSL QUIET)
 394       if(OPENSSL_FOUND)
 395         set(_CMAKE_USE_OPENSSL_DEFAULT ON)
 396       endif()
 397     endif()
 398     option(CMAKE_USE_OPENSSL "Use OpenSSL." ${_CMAKE_USE_OPENSSL_DEFAULT})
 399     mark_as_advanced(CMAKE_USE_OPENSSL)
 400     if(CMAKE_USE_OPENSSL)
 401       set(CURL_CA_BUNDLE "" CACHE FILEPATH "Path to SSL CA Certificate Bundle")
 402       set(CURL_CA_PATH "" CACHE PATH "Path to SSL CA Certificate Directory")
 403       mark_as_advanced(CURL_CA_BUNDLE CURL_CA_PATH)
 404     endif()
 405     add_subdirectory(Utilities/cmcurl)
 406     CMAKE_SET_TARGET_FOLDER(cmcurl "Utilities/3rdParty")
 407     CMAKE_SET_TARGET_FOLDER(LIBCURL "Utilities/3rdParty")
 408   endif()
 409
 410   #---------------------------------------------------------------------
 411   # Build Compress library for CTest.
 412   set(CMAKE_COMPRESS_INCLUDES
 413     "${CMAKE_CURRENT_BINARY_DIR}/Utilities/cmcompress")
 414   set(CMAKE_COMPRESS_LIBRARIES "cmcompress")
 415   add_subdirectory(Utilities/cmcompress)
 416   CMAKE_SET_TARGET_FOLDER(cmcompress "Utilities/3rdParty")
 417
 418   #---------------------------------------------------------------------
 419   # Build expat library for CMake, CTest, and libarchive.
 420   if(CMAKE_USE_SYSTEM_EXPAT)
 421     find_package(EXPAT)
 422     if(NOT EXPAT_FOUND)
 423       message(FATAL_ERROR
 424         "CMAKE_USE_SYSTEM_EXPAT is ON but a expat is not found!")
 425     endif()
 426     set(CMAKE_EXPAT_INCLUDES ${EXPAT_INCLUDE_DIRS})
 427     set(CMAKE_EXPAT_LIBRARIES ${EXPAT_LIBRARIES})
 428   else()
 429     set(CMAKE_EXPAT_INCLUDES)
 430     set(CMAKE_EXPAT_LIBRARIES cmexpat)
 431     add_subdirectory(Utilities/cmexpat)
 432     CMAKE_SET_TARGET_FOLDER(cmexpat "Utilities/3rdParty")
 433   endif()
 434
 435   #---------------------------------------------------------------------
 436   # Build or use system libbz2 for libarchive.
 437   if(NOT CMAKE_USE_SYSTEM_LIBARCHIVE)
 438     if(CMAKE_USE_SYSTEM_BZIP2)
 439       find_package(BZip2)
 440     else()
 441       set(BZIP2_INCLUDE_DIR
 442         "${CMAKE_CURRENT_SOURCE_DIR}/Utilities/cmbzip2")
 443       set(BZIP2_LIBRARIES cmbzip2)
 444       add_subdirectory(Utilities/cmbzip2)
 445       CMAKE_SET_TARGET_FOLDER(cmbzip2 "Utilities/3rdParty")
 446     endif()
 447   endif()
 448
 449   #---------------------------------------------------------------------
 450   # Build or use system liblzma for libarchive.
 451   if(NOT CMAKE_USE_SYSTEM_LIBARCHIVE)
 452     if(CMAKE_USE_SYSTEM_LIBLZMA)
 453       find_package(LibLZMA)
 454       if(NOT LIBLZMA_FOUND)
 455         message(FATAL_ERROR "CMAKE_USE_SYSTEM_LIBLZMA is ON but LibLZMA is not found!")
 456       endif()
 457     else()
 458       add_subdirectory(Utilities/cmliblzma)
 459       CMAKE_SET_TARGET_FOLDER(cmliblzma "Utilities/3rdParty")
 460       set(LIBLZMA_HAS_AUTO_DECODER 1)
 461       set(LIBLZMA_HAS_EASY_ENCODER 1)
 462       set(LIBLZMA_HAS_LZMA_PRESET 1)
 463       set(LIBLZMA_INCLUDE_DIR
 464         "${CMAKE_CURRENT_SOURCE_DIR}/Utilities/cmliblzma/liblzma/api")
 465       set(LIBLZMA_LIBRARY cmliblzma)
 466     endif()
 467   endif()
 468
 469   #---------------------------------------------------------------------
 470   # Build or use system libarchive for CMake and CTest.
 471   if(CMAKE_USE_SYSTEM_LIBARCHIVE)
 472     find_package(LibArchive 3.0.0)
 473     if(NOT LibArchive_FOUND)
 474       message(FATAL_ERROR "CMAKE_USE_SYSTEM_LIBARCHIVE is ON but LibArchive is not found!")
 475     endif()
 476     set(CMAKE_TAR_INCLUDES ${LibArchive_INCLUDE_DIRS})
 477     set(CMAKE_TAR_LIBRARIES ${LibArchive_LIBRARIES})
 478   else()
 479     set(EXPAT_INCLUDE_DIR ${CMAKE_EXPAT_INCLUDES})
 480     set(EXPAT_LIBRARY ${CMAKE_EXPAT_LIBRARIES})
 481     set(ZLIB_INCLUDE_DIR ${CMAKE_ZLIB_INCLUDES})
 482     set(ZLIB_LIBRARY ${CMAKE_ZLIB_LIBRARIES})
 483     add_definitions(-DLIBARCHIVE_STATIC)
 484     set(ENABLE_NETTLE OFF CACHE INTERNAL "Enable use of Nettle")
 485     set(ENABLE_OPENSSL ${CMAKE_USE_OPENSSL} CACHE INTERNAL "Enable use of OpenSSL")
 486     set(ENABLE_LZMA ON CACHE INTERNAL "Enable the use of the system LZMA library if found")
 487     set(ENABLE_LZO OFF CACHE INTERNAL "Enable the use of the system LZO library if found")
 488     set(ENABLE_ZLIB ON CACHE INTERNAL "Enable the use of the system ZLIB library if found")
 489     set(ENABLE_BZip2 ON CACHE INTERNAL "Enable the use of the system BZip2 library if found")
 490     set(ENABLE_LIBXML2 OFF CACHE INTERNAL "Enable the use of the system libxml2 library if found")
 491     set(ENABLE_EXPAT ON CACHE INTERNAL "Enable the use of the system EXPAT library if found")
 492     set(ENABLE_PCREPOSIX OFF CACHE INTERNAL "Enable the use of the system PCREPOSIX library if found")
 493     set(ENABLE_LibGCC OFF CACHE INTERNAL "Enable the use of the system LibGCC library if found")
 494     set(ENABLE_XATTR OFF CACHE INTERNAL "Enable extended attribute support")
 495     set(ENABLE_ACL OFF CACHE INTERNAL "Enable ACL support")
 496     set(ENABLE_ICONV OFF CACHE INTERNAL "Enable iconv support")
 497     set(ENABLE_CNG OFF CACHE INTERNAL "Enable the use of CNG(Crypto Next Generation)")
 498     add_subdirectory(Utilities/cmlibarchive)
 499     CMAKE_SET_TARGET_FOLDER(cmlibarchive "Utilities/3rdParty")
 500     set(CMAKE_TAR_LIBRARIES cmlibarchive ${BZIP2_LIBRARIES})
 501   endif()
 502
 503   #---------------------------------------------------------------------
 504   # Build jsoncpp library.
 505   if(CMAKE_USE_SYSTEM_JSONCPP)
 506     if(NOT CMAKE_VERSION VERSION_LESS 3.0)
 507       find_package(JsonCpp)
 508     else()
 509       message(FATAL_ERROR "CMAKE_USE_SYSTEM_JSONCPP requires CMake >= 3.0")
 510     endif()
 511     if(NOT JsonCpp_FOUND)
 512       message(FATAL_ERROR
 513         "CMAKE_USE_SYSTEM_JSONCPP is ON but a JsonCpp is not found!")
 514     endif()
 515     set(CMAKE_JSONCPP_LIBRARIES JsonCpp::JsonCpp)
 516   else()
 517     set(CMAKE_JSONCPP_LIBRARIES cmjsoncpp)
 518     add_subdirectory(Utilities/cmjsoncpp)
 519     CMAKE_SET_TARGET_FOLDER(cmjsoncpp "Utilities/3rdParty")
 520   endif()
 521
 522   #---------------------------------------------------------------------
 523   # Build libuv library.
 524   if(NOT DEFINED CMAKE_USE_LIBUV)
 525     set(CMAKE_USE_LIBUV 1)
 526     if(APPLE)
 527       include(CheckCSourceCompiles)
 528       check_c_source_compiles("
 529 #include <CoreServices/CoreServices.h>
 530 #include <AvailabilityMacros.h>
 531 #ifndef MAC_OS_X_VERSION_10_5
 532 #error \"MAC_OS_X_VERSION_10_5 is not defined\"
 533 #endif
 534 int main(void) { return 0; }
 535 " HAVE_CoreServices_OS_X_10_5)
 536       if(NOT HAVE_CoreServices_OS_X_10_5)
 537         set(CMAKE_USE_LIBUV 0)
 538       endif()
 539     elseif(CMAKE_SYSTEM_NAME STREQUAL "HP-UX")
 540       # Disable until it can be ported.
 541       set(CMAKE_USE_LIBUV 0)
 542     endif()
 543   endif()
 544   if(CMAKE_USE_LIBUV)
 545     if(CMAKE_USE_SYSTEM_LIBUV)
 546       if(NOT CMAKE_VERSION VERSION_LESS 3.0)
 547         find_package(LibUV 1.0.0)
 548       else()
 549         message(FATAL_ERROR "CMAKE_USE_SYSTEM_LIBUV requires CMake >= 3.0")
 550       endif()
 551       if(NOT LIBUV_FOUND)
 552         message(FATAL_ERROR
 553           "CMAKE_USE_SYSTEM_LIBUV is ON but a libuv is not found!")
 554       endif()
 555       set(CMAKE_LIBUV_LIBRARIES LibUV::LibUV)
 556     else()
 557       set(CMAKE_LIBUV_LIBRARIES cmlibuv)
 558       add_subdirectory(Utilities/cmlibuv)
 559       CMAKE_SET_TARGET_FOLDER(cmlibuv "Utilities/3rdParty")
 560     endif()
 561   else()
 562     set(CMAKE_LIBUV_LIBRARIES)
 563   endif()
 564
 565   #---------------------------------------------------------------------
 566   # Build XMLRPC library for CMake and CTest.
 567   if(CTEST_USE_XMLRPC)
 568     find_package(XMLRPC QUIET REQUIRED libwww-client)
 569     if(NOT XMLRPC_FOUND)
 570       message(FATAL_ERROR
 571         "CTEST_USE_XMLRPC is ON but xmlrpc is not found!")
 572     endif()
 573     set(CMAKE_XMLRPC_INCLUDES ${XMLRPC_INCLUDE_DIRS})
 574     set(CMAKE_XMLRPC_LIBRARIES ${XMLRPC_LIBRARIES})
 575   endif()
 576
 577   #---------------------------------------------------------------------
 578   # Use curses?
 579   if (UNIX)
 580     # there is a bug in the Syllable libraries which makes linking ccmake fail, Alex
 581     if(NOT CMAKE_SYSTEM_NAME MATCHES syllable)
 582       set(CURSES_NEED_NCURSES TRUE)
 583       find_package(Curses QUIET)
 584       if (CURSES_LIBRARY)
 585         option(BUILD_CursesDialog "Build the CMake Curses Dialog ccmake" ON)
 586       else ()
 587         message("Curses libraries were not found. Curses GUI for CMake will not be built.")
 588         set(BUILD_CursesDialog 0)
 589       endif ()
 590     else()
 591       set(BUILD_CursesDialog 0)
 592     endif()
 593   else ()
 594     set(BUILD_CursesDialog 0)
 595   endif ()
 596   if(BUILD_CursesDialog)
 597     if(NOT CMAKE_USE_SYSTEM_FORM)
 598       add_subdirectory(Source/CursesDialog/form)
 599     elseif(NOT CURSES_FORM_LIBRARY)
 600       message( FATAL_ERROR "CMAKE_USE_SYSTEM_FORM in ON but CURSES_FORM_LIBRARY is not set!" )
 601     endif()
 602   endif()
 603 endmacro ()
 604
 605 #-----------------------------------------------------------------------
 606 if(NOT CMake_TEST_EXTERNAL_CMAKE)
 607   if(CMAKE_CXX_PLATFORM_ID MATCHES "OpenBSD")
 608     execute_process(COMMAND ${CMAKE_CXX_COMPILER}
 609       ${CMAKE_CXX_COMPILER_ARG1} -dumpversion
 610       OUTPUT_VARIABLE _GXX_VERSION
 611     )
 612     string(REGEX REPLACE "([0-9])\\.([0-9])(\\.[0-9])?" "\\1\\2"
 613       _GXX_VERSION_SHORT ${_GXX_VERSION})
 614     if(_GXX_VERSION_SHORT EQUAL 33)
 615       message(FATAL_ERROR
 616         "GXX 3.3 on OpenBSD is known to cause CPack to Crash.\n"
 617         "Please use GXX 4.2 or greater to build CMake on OpenBSD\n"
 618         "${CMAKE_CXX_COMPILER} version is: ${_GXX_VERSION}")
 619     endif()
 620   endif()
 621 endif()
 622
 623 #-----------------------------------------------------------------------
 624 # The main section of the CMakeLists file
 625 #
 626 #-----------------------------------------------------------------------
 627 # Compute CMake_VERSION, etc.
 628 include(Source/CMakeVersionCompute.cmake)
 629
 630 # Include the standard Dart testing module
 631 enable_testing()
 632 include (${CMAKE_ROOT}/Modules/Dart.cmake)
 633
 634 # Set up test-time configuration.
 635 set_directory_properties(PROPERTIES
 636   TEST_INCLUDE_FILE "${CMake_BINARY_DIR}/Tests/EnforceConfig.cmake")
 637
 638 if(NOT CMake_TEST_EXTERNAL_CMAKE)
 639   # where to write the resulting executables and libraries
 640   set(BUILD_SHARED_LIBS OFF)
 641   set(EXECUTABLE_OUTPUT_PATH "" CACHE INTERNAL "No configurable exe dir.")
 642   set(LIBRARY_OUTPUT_PATH "" CACHE INTERNAL
 643     "Where to put the libraries for CMake")
 644
 645   # The CMake executables usually do not need any rpath to run in the build or
 646   # install tree.
 647   set(CMAKE_SKIP_RPATH ON CACHE INTERNAL "CMake does not need RPATHs.")
 648
 649   # Load install destinations.
 650   include(Source/CMakeInstallDestinations.cmake)
 651
 652   if(BUILD_TESTING)
 653     include(${CMake_SOURCE_DIR}/Tests/CMakeInstall.cmake)
 654   endif()
 655
 656   # no clue why we are testing for this here
 657   include(CheckSymbolExists)
 658   CHECK_SYMBOL_EXISTS(unsetenv "stdlib.h" HAVE_UNSETENV)
 659   CHECK_SYMBOL_EXISTS(environ "stdlib.h" HAVE_ENVIRON_NOT_REQUIRE_PROTOTYPE)
 660 endif()
 661
 662 # CMAKE_TESTS_CDASH_SERVER: CDash server used by CMake/Tests.
 663 #
 664 # If not defined or "", this variable defaults to the server at
 665 # "http://open.cdash.org".
 666 #
 667 # If set explicitly to "NOTFOUND", curl tests and ctest tests that use
 668 # the network are skipped.
 669 #
 670 # If set to something starting with "http://localhost/", the CDash is
 671 # expected to be an instance of CDash used for CDash testing, pointing
 672 # to a cdash4simpletest database. In these cases, the CDash dashboards
 673 # should be run first.
 674 #
 675 if("x${CMAKE_TESTS_CDASH_SERVER}" STREQUAL "x")
 676   set(CMAKE_TESTS_CDASH_SERVER "http://open.cdash.org")
 677 endif()
 678
 679 if(CMake_TEST_EXTERNAL_CMAKE)
 680   set(KWIML_TEST_ENABLE 1)
 681   add_subdirectory(Utilities/KWIML)
 682 endif()
 683
 684 if(NOT CMake_TEST_EXTERNAL_CMAKE)
 685   # build the utilities (a macro defined in this file)
 686   CMAKE_BUILD_UTILITIES()
 687
 688   # On NetBSD ncurses is required, since curses doesn't have the wsyncup()
 689   # function. ncurses is installed via pkgsrc, so the library is in /usr/pkg/lib,
 690   # which isn't in the default linker search path. So without RPATH ccmake
 691   # doesn't run and the build doesn't succeed since ccmake is executed for
 692   # generating the documentation.
 693   if(BUILD_CursesDialog)
 694     get_filename_component(_CURSES_DIR "${CURSES_LIBRARY}" PATH)
 695     set(CURSES_NEED_RPATH FALSE)
 696     if(NOT "${_CURSES_DIR}" STREQUAL "/lib" AND NOT "${_CURSES_DIR}" STREQUAL "/usr/lib" AND NOT "${_CURSES_DIR}" STREQUAL "/lib64" AND NOT "${_CURSES_DIR}" STREQUAL "/usr/lib64")
 697       set(CURSES_NEED_RPATH TRUE)
 698     endif()
 699   endif()
 700
 701   if(BUILD_QtDialog)
 702     if(APPLE)
 703       set(CMAKE_BUNDLE_VERSION
 704         "${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}.${CMake_VERSION_PATCH}")
 705       set(CMAKE_BUNDLE_LOCATION "${CMAKE_INSTALL_PREFIX}")
 706       # make sure CMAKE_INSTALL_PREFIX ends in /
 707       if(NOT CMAKE_INSTALL_PREFIX MATCHES "/$")
 708         set(CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}/")
 709       endif()
 710       set(CMAKE_INSTALL_PREFIX
 711         "${CMAKE_INSTALL_PREFIX}CMake.app/Contents")
 712     endif()
 713
 714     set(QT_NEED_RPATH FALSE)
 715     if(NOT "${QT_LIBRARY_DIR}" STREQUAL "/lib" AND NOT "${QT_LIBRARY_DIR}" STREQUAL "/usr/lib" AND NOT "${QT_LIBRARY_DIR}" STREQUAL "/lib64" AND NOT "${QT_LIBRARY_DIR}" STREQUAL "/usr/lib64")
 716       set(QT_NEED_RPATH TRUE)
 717     endif()
 718   endif()
 719
 720
 721   # The same might be true on other systems for other libraries.
 722   # Then only enable RPATH if we have are building at least with cmake 2.4,
 723   # since this one has much better RPATH features than cmake 2.2.
 724   # The executables are then built with the RPATH for the libraries outside
 725   # the build tree, which is both the build and the install RPATH.
 726   if (UNIX)
 727     if(   CMAKE_USE_SYSTEM_CURL   OR  CMAKE_USE_SYSTEM_ZLIB
 728           OR  CMAKE_USE_SYSTEM_EXPAT  OR  CTEST_USE_XMLRPC  OR  CURSES_NEED_RPATH  OR  QT_NEED_RPATH)
 729       set(CMAKE_SKIP_RPATH OFF CACHE INTERNAL "CMake built with RPATH.")
 730       set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
 731       set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
 732     endif()
 733   endif ()
 734
 735
 736   # add the uninstall support
 737   configure_file(
 738     "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
 739     "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
 740     @ONLY)
 741   add_custom_target(uninstall
 742     "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
 743
 744   include (CMakeCPack.cmake)
 745
 746 endif()
 747
 748 # setup some Testing support (a macro defined in this file)
 749 CMAKE_SETUP_TESTING()
 750
 751 # Check whether to build server mode or not:
 752 if(NOT CMake_TEST_EXTERNAL_CMAKE)
 753   if(NOT DEFINED CMake_ENABLE_SERVER_MODE)
 754     list(FIND CMAKE_CXX_COMPILE_FEATURES cxx_auto_type CMake_HAVE_CXX_AUTO_TYPE)
 755     list(FIND CMAKE_CXX_COMPILE_FEATURES cxx_range_for CMake_HAVE_CXX_RANGE_FOR)
 756     if(CMAKE_USE_LIBUV
 757         AND CMake_HAVE_CXX_AUTO_TYPE
 758         AND CMake_HAVE_CXX_MAKE_UNIQUE
 759         AND CMake_HAVE_CXX_RANGE_FOR
 760         )
 761       set(CMake_ENABLE_SERVER_MODE 1)
 762     else()
 763       set(CMake_ENABLE_SERVER_MODE 0)
 764     endif()
 765   endif()
 766   if(CMake_ENABLE_SERVER_MODE AND NOT CMAKE_USE_LIBUV)
 767     message(FATAL_ERROR "The server mode requires libuv!")
 768   endif()
 769 else()
 770   set(CMake_ENABLE_SERVER_MODE 0)
 771 endif()
 772 if(NOT DEFINED CMake_TEST_SERVER_MODE)
 773   set(CMake_TEST_SERVER_MODE ${CMake_ENABLE_SERVER_MODE})
 774 endif()
 775
 776 if(NOT CMake_TEST_EXTERNAL_CMAKE)
 777   if(NOT CMake_VERSION_IS_RELEASE)
 778     if(CMAKE_C_COMPILER_ID STREQUAL "GNU" AND
 779         NOT "${CMAKE_C_COMPILER_VERSION}" VERSION_LESS 4.2)
 780       set(C_FLAGS_LIST -Wcast-align -Werror-implicit-function-declaration -Wchar-subscripts
 781                        -Wall -W -Wpointer-arith -Wwrite-strings -Wformat-security
 782                        -Wmissing-format-attribute -fno-common -Wundef
 783       )
 784       set(CXX_FLAGS_LIST -Wnon-virtual-dtor -Wcast-align -Wchar-subscripts -Wall -W
 785                          -Wshadow -Wpointer-arith -Wformat-security -Wundef
 786       )
 787
 788       foreach(FLAG_LANG  C CXX)
 789         foreach(FLAG ${${FLAG_LANG}_FLAGS_LIST})
 790           if(NOT " ${CMAKE_${FLAG_LANG}_FLAGS} " MATCHES " ${FLAG} ")
 791             set(CMAKE_${FLAG_LANG}_FLAGS "${CMAKE_${FLAG_LANG}_FLAGS} ${FLAG}")
 792           endif()
 793         endforeach()
 794       endforeach()
 795
 796       unset(C_FLAGS_LIST)
 797       unset(CXX_FLAGS_LIST)
 798     endif()
 799   endif()
 800
 801   # build the remaining subdirectories
 802   add_subdirectory(Source)
 803   add_subdirectory(Utilities)
 804 endif()
 805
 806 add_subdirectory(Tests)
 807
 808 if(NOT CMake_TEST_EXTERNAL_CMAKE)
 809   if(BUILD_TESTING)
 810     CMAKE_SET_TARGET_FOLDER(CMakeLibTests "Tests")
 811   endif()
 812   if(TARGET documentation)
 813     CMAKE_SET_TARGET_FOLDER(documentation "Documentation")
 814   endif()
 815 endif()
 816
 817 # add a test
 818 add_test(SystemInformationNew "${CMAKE_CMAKE_COMMAND}"
 819   --system-information  -G "${CMAKE_GENERATOR}" )
 820
 821 if(NOT CMake_TEST_EXTERNAL_CMAKE)
 822   # Install license file as it requires.
 823   install(FILES Copyright.txt DESTINATION ${CMAKE_DOC_DIR})
 824
 825   # Install script directories.
 826   install(
 827     DIRECTORY Help Modules Templates
 828     DESTINATION ${CMAKE_DATA_DIR}
 829     FILE_PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
 830     DIRECTORY_PERMISSIONS OWNER_READ OWNER_EXECUTE OWNER_WRITE
 831                           GROUP_READ GROUP_EXECUTE
 832                           WORLD_READ WORLD_EXECUTE
 833     PATTERN "*.sh*" PERMISSIONS OWNER_READ OWNER_EXECUTE OWNER_WRITE
 834                                 GROUP_READ GROUP_EXECUTE
 835                                 WORLD_READ WORLD_EXECUTE
 836     REGEX "Help/dev($|/)" EXCLUDE
 837     )
 838
 839   # Install auxiliary files integrating with other tools.
 840   add_subdirectory(Auxiliary)
 841 endif()