cmake/CMakeMacros.cmake

   1
   2 # set_cpp
   3 #  Marks the current folder as containing C++ modules, additionally enabling
   4 #  specific C++ language features as specified (all of these default to off):
   5 #
   6 #  WITH_RUNTIME
   7 #   Links with the C++ runtime. Enable this for modules which use new/delete or
   8 #   RTTI, but do not require STL. This is the right choice if you see undefined
   9 #   references to operator new/delete, vector constructor/destructor iterator,
  10 #   type_info::vtable, ...
  11 #   Note: this only affects linking, so cannot be used for static libraries.
  12 #  WITH_RTTI
  13 #   Enables run-time type information. Enable this if the module uses typeid or
  14 #   dynamic_cast. You will probably need to enable WITH_RUNTIME as well, if
  15 #   you're not already using STL.
  16 #  WITH_EXCEPTIONS
  17 #   Enables C++ exception handling. Enable this if the module uses try/catch or
  18 #   throw. You might also need this if you use a standard operator new (the one
  19 #   without nothrow).
  20 #  WITH_STL
  21 #   Enables standard C++ headers and links to the Standard Template Library.
  22 #   Use this for modules using anything from the std:: namespace, e.g. maps,
  23 #   strings, vectors, etc.
  24 #   Note: this affects both compiling (via include directories) and
  25 #         linking (by adding STL). Implies WITH_RUNTIME.
  26 #   FIXME: WITH_STL is currently also required for runtime headers such as
  27 #          <new> and <exception>. This is not a big issue because in stl-less
  28 #          environments you usually don't want those anyway; but we might want
  29 #          to have modules like this in the future.
  30 #
  31 # Examples:
  32 #  set_cpp()
  33 #   Enables the C++ language, but will cause errors if any runtime or standard
  34 #   library features are used. This should be the default for C++ in kernel
  35 #   mode or otherwise restricted environments.
  36 #   Note: this is required to get libgcc (for multiplication/division) linked
  37 #         in for C++ modules, and to set the correct language for precompiled
  38 #         header files, so it IS required even with no features specified.
  39 #  set_cpp(WITH_RUNTIME)
  40 #   Links with the C++ runtime, so that e.g. custom operator new implementations
  41 #   can be used in a restricted environment. This is also required for linking
  42 #   with libraries (such as ATL) which have RTTI enabled, even if the module in
  43 #   question does not use WITH_RTTI.
  44 #  set_cpp(WITH_RTTI WITH_EXCEPTIONS WITH_STL)
  45 #   The full package. This will adjust compiler and linker so that all C++
  46 #   features can be used.
  47 macro(set_cpp)
  48     cmake_parse_arguments(__cppopts "WITH_RUNTIME;WITH_RTTI;WITH_EXCEPTIONS;WITH_STL" "" "" ${ARGN})
  49     if(__cppopts_UNPARSED_ARGUMENTS)
  50         message(FATAL_ERROR "set_cpp: unparsed arguments ${__cppopts_UNPARSED_ARGUMENTS}")
  51     endif()
  52
  53     if(__cppopts_WITH_RUNTIME)
  54         set(CPP_USE_RT 1)
  55     endif()
  56     if(__cppopts_WITH_RTTI)
  57         if(MSVC)
  58             replace_compile_flags("/GR-" "/GR")
  59         else()
  60             replace_compile_flags_language("-fno-rtti" "-frtti" "CXX")
  61         endif()
  62     endif()
  63     if(__cppopts_WITH_EXCEPTIONS)
  64         if(MSVC)
  65             replace_compile_flags("/EHs-c-" "/EHsc")
  66         else()
  67             replace_compile_flags_language("-fno-exceptions" "-fexceptions" "CXX")
  68         endif()
  69     endif()
  70     if(__cppopts_WITH_STL)
  71         set(CPP_USE_STL 1)
  72         if(MSVC)
  73             add_definitions(-DNATIVE_CPP_INCLUDE=${REACTOS_SOURCE_DIR}/include/c++)
  74             include_directories(${REACTOS_SOURCE_DIR}/include/c++/stlport)
  75         endif()
  76     endif()
  77
  78     set(IS_CPP 1)
  79 endmacro()
  80
  81 function(add_dependency_node _node)
  82     if(GENERATE_DEPENDENCY_GRAPH)
  83         get_target_property(_type ${_node} TYPE)
  84         if(_type MATCHES SHARED_LIBRARY OR ${_node} MATCHES ntoskrnl)
  85             file(APPEND ${REACTOS_BINARY_DIR}/dependencies.graphml "    <node id=\"${_node}\"/>\n")
  86         endif()
  87      endif()
  88 endfunction()
  89
  90 function(add_dependency_edge _source _target)
  91     if(GENERATE_DEPENDENCY_GRAPH)
  92         get_target_property(_type ${_source} TYPE)
  93         if(_type MATCHES SHARED_LIBRARY)
  94             file(APPEND ${REACTOS_BINARY_DIR}/dependencies.graphml "    <edge source=\"${_source}\" target=\"${_target}\"/>\n")
  95         endif()
  96     endif()
  97 endfunction()
  98
  99 function(add_dependency_header)
 100     file(APPEND ${REACTOS_BINARY_DIR}/dependencies.graphml "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<graphml>\n  <graph id=\"ReactOS dependencies\" edgedefault=\"directed\">\n")
 101 endfunction()
 102
 103 function(add_dependency_footer)
 104     add_dependency_node(ntdll)
 105     file(APPEND ${REACTOS_BINARY_DIR}/dependencies.graphml "  </graph>\n</graphml>\n")
 106 endfunction()
 107
 108 function(add_message_headers _type)
 109     if(${_type} STREQUAL UNICODE)
 110         set(_flag "-U")
 111     else()
 112         set(_flag "-A")
 113     endif()
 114     foreach(_in_FILE ${ARGN})
 115         get_filename_component(FILE ${_in_FILE} NAME_WE)
 116         macro_mc(${_flag} ${FILE})
 117         add_custom_command(
 118             OUTPUT ${REACTOS_BINARY_DIR}/include/reactos/${FILE}.rc ${REACTOS_BINARY_DIR}/include/reactos/${FILE}.h
 119             COMMAND ${COMMAND_MC} ${MC_FLAGS}
 120             DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${FILE}.mc)
 121         set_source_files_properties(
 122             ${REACTOS_BINARY_DIR}/include/reactos/${FILE}.h ${REACTOS_BINARY_DIR}/include/reactos/${FILE}.rc
 123             PROPERTIES GENERATED TRUE)
 124         add_custom_target(${FILE} ALL DEPENDS ${REACTOS_BINARY_DIR}/include/reactos/${FILE}.h ${REACTOS_BINARY_DIR}/include/reactos/${FILE}.rc)
 125     endforeach()
 126 endfunction()
 127
 128 function(add_link)
 129     cmake_parse_arguments(_LINK "MINIMIZE" "NAME;PATH;CMD_LINE_ARGS;ICON;GUID" "" ${ARGN})
 130     if(NOT _LINK_NAME OR NOT _LINK_PATH)
 131         message(FATAL_ERROR "You must provide name and path")
 132     endif()
 133
 134     if(_LINK_CMD_LINE_ARGS)
 135         set(_LINK_CMD_LINE_ARGS -c ${_LINK_CMD_LINE_ARGS})
 136     endif()
 137
 138     if(_LINK_ICON)
 139         set(_LINK_ICON -i ${_LINK_ICON})
 140     endif()
 141
 142     if(_LINK_GUID)
 143         set(_LINK_GUID -g ${_LINK_GUID})
 144     endif()
 145
 146     if(_LINK_MINIMIZE)
 147         set(_LINK_MINIMIZE "-m")
 148     endif()
 149
 150     add_custom_command(
 151         OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${_LINK_NAME}.lnk
 152         COMMAND native-mkshelllink -o ${CMAKE_CURRENT_BINARY_DIR}/${_LINK_NAME}.lnk ${_LINK_CMD_LINE_ARGS} ${_LINK_ICON} ${_LINK_GUID} ${_LINK_MINIMIZE} ${_LINK_PATH}
 153         DEPENDS native-mkshelllink)
 154     set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${_LINK_NAME}.lnk PROPERTIES GENERATED TRUE)
 155 endfunction()
 156
 157 macro(dir_to_num dir var)
 158     if(${dir} STREQUAL reactos/system32)
 159         set(${var} 1)
 160     elseif(${dir} STREQUAL reactos/system32/drivers)
 161         set(${var} 2)
 162     elseif(${dir} STREQUAL reactos/Fonts)
 163         set(${var} 3)
 164     elseif(${dir} STREQUAL reactos)
 165         set(${var} 4)
 166     elseif(${dir} STREQUAL reactos/system32/drivers/etc)
 167         set(${var} 5)
 168     elseif(${dir} STREQUAL reactos/inf)
 169         set(${var} 6)
 170     elseif(${dir} STREQUAL reactos/bin)
 171         set(${var} 7)
 172     elseif(${dir} STREQUAL reactos/bin/data)
 173         set(${var} 8)
 174     elseif(${dir} STREQUAL reactos/media)
 175         set(${var} 9)
 176     elseif(${dir} STREQUAL reactos/Microsoft.NET)
 177         set(${var} 10)
 178     elseif(${dir} STREQUAL reactos/Microsoft.NET/Framework)
 179         set(${var} 11)
 180     elseif(${dir} STREQUAL reactos/Microsoft.NET/Framework/v1.0.3705)
 181         set(${var} 12)
 182     elseif(${dir} STREQUAL reactos/Microsoft.NET/Framework/v1.1.4322)
 183         set(${var} 13)
 184     elseif(${dir} STREQUAL reactos/Microsoft.NET/Framework/v2.0.50727)
 185         set(${var} 14)
 186     elseif(${dir} STREQUAL reactos/Resources)
 187         set(${var} 15)
 188     elseif(${dir} STREQUAL reactos/Resources/Themes)
 189         set(${var} 16)
 190     elseif(${dir} STREQUAL reactos/system32/wbem)
 191         set(${var} 17)
 192         else()
 193         message(FATAL_ERROR "Wrong destination: ${dir}")
 194     endif()
 195 endmacro()
 196
 197 function(add_cd_file)
 198     cmake_parse_arguments(_CD "NO_CAB" "DESTINATION;NAME_ON_CD;TARGET" "FILE;FOR" ${ARGN})
 199     if(NOT (_CD_TARGET OR _CD_FILE))
 200         message(FATAL_ERROR "You must provide a target or a file to install!")
 201     endif()
 202
 203     if(NOT _CD_DESTINATION)
 204         message(FATAL_ERROR "You must provide a destination")
 205     elseif(${_CD_DESTINATION} STREQUAL root)
 206         set(_CD_DESTINATION "")
 207     endif()
 208
 209     if(NOT _CD_FOR)
 210         message(FATAL_ERROR "You must provide a cd name (or "all" for all of them) to install the file on!")
 211     endif()
 212
 213     #get file if we need to
 214     if(NOT _CD_FILE)
 215         get_target_property(_CD_FILE ${_CD_TARGET} LOCATION_${CMAKE_BUILD_TYPE})
 216     endif()
 217
 218     #do we add it to all CDs?
 219     if(_CD_FOR STREQUAL all)
 220         set(_CD_FOR "bootcd;livecd;regtest")
 221     endif()
 222
 223     #do we add it to bootcd?
 224     list(FIND _CD_FOR bootcd __cd)
 225     if(NOT __cd EQUAL -1)
 226         #whether or not we should put it in reactos.cab or directly on cd
 227         if(_CD_NO_CAB)
 228             #directly on cd
 229             foreach(item ${_CD_FILE})
 230                 if(_CD_NAME_ON_CD)
 231                     #rename it in the cd tree
 232                     set(__file ${_CD_NAME_ON_CD})
 233                 else()
 234                     get_filename_component(__file ${item} NAME)
 235                 endif()
 236                 set_property(GLOBAL APPEND PROPERTY BOOTCD_FILE_LIST "${_CD_DESTINATION}/${__file}=${item}")
 237             endforeach()
 238             if(_CD_TARGET)
 239                 #manage dependency
 240                 add_dependencies(bootcd ${_CD_TARGET})
 241             endif()
 242         else()
 243             #add it in reactos.cab
 244             dir_to_num(${_CD_DESTINATION} _num)
 245             file(RELATIVE_PATH __relative_file ${REACTOS_SOURCE_DIR} ${_CD_FILE})
 246             file(APPEND ${REACTOS_BINARY_DIR}/boot/bootdata/packages/reactos.dff.dyn "\"${__relative_file}\" ${_num}\n")
 247             unset(__relative_file)
 248             if(_CD_TARGET)
 249                 #manage dependency
 250                 add_dependencies(reactos_cab ${_CD_TARGET})
 251             endif()
 252         endif()
 253     endif() #end bootcd
 254
 255     #do we add it to livecd?
 256     list(FIND _CD_FOR livecd __cd)
 257     if(NOT __cd EQUAL -1)
 258         #manage dependency
 259         if(_CD_TARGET)
 260             add_dependencies(livecd ${_CD_TARGET})
 261         endif()
 262         foreach(item ${_CD_FILE})
 263             if(_CD_NAME_ON_CD)
 264                 #rename it in the cd tree
 265                 set(__file ${_CD_NAME_ON_CD})
 266             else()
 267                 get_filename_component(__file ${item} NAME)
 268             endif()
 269             set_property(GLOBAL APPEND PROPERTY LIVECD_FILE_LIST "${_CD_DESTINATION}/${__file}=${item}")
 270         endforeach()
 271     endif() #end livecd
 272
 273     #do we add it to regtest?
 274     list(FIND _CD_FOR regtest __cd)
 275     if(NOT __cd EQUAL -1)
 276         #whether or not we should put it in reactos.cab or directly on cd
 277         if(_CD_NO_CAB)
 278             #directly on cd
 279             foreach(item ${_CD_FILE})
 280                 if(_CD_NAME_ON_CD)
 281                     #rename it in the cd tree
 282                     set(__file ${_CD_NAME_ON_CD})
 283                 else()
 284                     get_filename_component(__file ${item} NAME)
 285                 endif()
 286                 set_property(GLOBAL APPEND PROPERTY BOOTCDREGTEST_FILE_LIST "${_CD_DESTINATION}/${__file}=${item}")
 287             endforeach()
 288             if(_CD_TARGET)
 289                 #manage dependency
 290                 add_dependencies(bootcdregtest ${_CD_TARGET})
 291             endif()
 292         else()
 293             #add it in reactos.cab
 294             #dir_to_num(${_CD_DESTINATION} _num)
 295             #file(APPEND ${REACTOS_BINARY_DIR}/boot/bootdata/packages/reactos.dff.dyn "${_CD_FILE} ${_num}\n")
 296             #if(_CD_TARGET)
 297             #    #manage dependency
 298             #    add_dependencies(reactos_cab ${_CD_TARGET})
 299             #endif()
 300         endif()
 301     endif() #end bootcd
 302 endfunction()
 303
 304 function(create_iso_lists)
 305     get_property(_filelist GLOBAL PROPERTY BOOTCD_FILE_LIST)
 306     string(REPLACE ";" "\n" _filelist "${_filelist}")
 307     file(APPEND ${REACTOS_BINARY_DIR}/boot/bootcd.lst "${_filelist}")
 308     unset(_filelist)
 309
 310     get_property(_filelist GLOBAL PROPERTY LIVECD_FILE_LIST)
 311     string(REPLACE ";" "\n" _filelist "${_filelist}")
 312     file(APPEND ${REACTOS_BINARY_DIR}/boot/livecd.lst "${_filelist}")
 313     unset(_filelist)
 314
 315     get_property(_filelist GLOBAL PROPERTY BOOTCDREGTEST_FILE_LIST)
 316     string(REPLACE ";" "\n" _filelist "${_filelist}")
 317     file(APPEND ${REACTOS_BINARY_DIR}/boot/bootcdregtest.lst "${_filelist}")
 318     unset(_filelist)
 319 endfunction()
 320
 321 # Create module_clean targets
 322 function(add_clean_target _target)
 323     set(_clean_working_directory ${CMAKE_CURRENT_BINARY_DIR})
 324     if(CMAKE_GENERATOR STREQUAL "Unix Makefiles" OR CMAKE_GENERATOR STREQUAL "MinGW Makefiles")
 325         set(_clean_command make clean)
 326     elseif(CMAKE_GENERATOR STREQUAL "NMake Makefiles")
 327         set(_clean_command nmake /nologo clean)
 328     elseif(CMAKE_GENERATOR STREQUAL "Ninja")
 329         set(_clean_command ninja -t clean ${_target})
 330         set(_clean_working_directory ${REACTOS_BINARY_DIR})
 331     endif()
 332     add_custom_target(${_target}_clean
 333         COMMAND ${_clean_command}
 334         WORKING_DIRECTORY ${_clean_working_directory}
 335         COMMENT "Cleaning ${_target}")
 336 endfunction()
 337
 338 if(NOT MSVC_IDE)
 339     function(add_library name)
 340         _add_library(${name} ${ARGN})
 341         add_clean_target(${name})
 342     endfunction()
 343
 344     function(add_executable name)
 345         _add_executable(${name} ${ARGN})
 346         add_clean_target(${name})
 347     endfunction()
 348 endif()
 349
 350 if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
 351     macro(to_win_path _cmake_path _native_path)
 352         string(REPLACE "/" "\\" ${_native_path} "${_cmake_path}")
 353     endmacro()
 354
 355     # yeah the parameter mess sucks, but thats what works...
 356     function(concatenate_files _file1 _target2 _output)
 357         get_target_property(_file2 ${_target2} LOCATION)
 358         to_win_path("${_file1}" _real_file1)
 359         to_win_path("${_file2}" _real_file2)
 360         to_win_path("${_output}" _real_output)
 361         add_custom_command(
 362             OUTPUT ${_output}
 363             COMMAND cmd.exe /C "copy /Y /B ${_real_file1} + ${_real_file2} ${_real_output} > nul"
 364             DEPENDS ${_file1}
 365             DEPENDS ${_target2})
 366     endfunction()
 367 else()
 368     macro(concatenate_files _file1 _target2 _output)
 369         get_target_property(_file2 ${_target2} LOCATION)
 370         add_custom_command(
 371             OUTPUT ${_output}
 372             COMMAND cat ${_file1} ${_file2} > ${_output}
 373             DEPENDS ${_file1}
 374             DEPENDS ${_target2})
 375     endmacro()
 376 endif()
 377
 378 function(add_importlibs _module)
 379     add_dependency_node(${_module})
 380     foreach(LIB ${ARGN})
 381         if("${LIB}" MATCHES "msvcrt")
 382             add_target_compile_definitions(${_module} _DLL __USE_CRTIMP)
 383             target_link_libraries(${_module} msvcrtex)
 384         endif()
 385         target_link_libraries(${_module} lib${LIB})
 386         add_dependencies(${_module} lib${LIB})
 387         add_dependency_edge(${_module} ${LIB})
 388     endforeach()
 389 endfunction()
 390
 391 function(set_module_type MODULE TYPE)
 392     cmake_parse_arguments(__module "UNICODE" "IMAGEBASE" "ENTRYPOINT" ${ARGN})
 393
 394     if(__module_UNPARSED_ARGUMENTS)
 395         message(STATUS "set_module_type : unparsed arguments ${__module_UNPARSED_ARGUMENTS}, module : ${MODULE}")
 396     endif()
 397
 398     # Set subsystem. Also take this as an occasion
 399     # to error out if someone gave a non existing type
 400     if((${TYPE} STREQUAL nativecui) OR (${TYPE} STREQUAL nativedll) OR (${TYPE} STREQUAL kernelmodedriver) OR (${TYPE} STREQUAL wdmdriver))
 401         set(__subsystem native)
 402     elseif(${TYPE} STREQUAL win32cui)
 403         set(__subsystem console)
 404     elseif(${TYPE} STREQUAL win32gui)
 405         set(__subsystem windows)
 406     elseif(NOT ((${TYPE} STREQUAL win32dll) OR (${TYPE} STREQUAL win32ocx)
 407             OR (${TYPE} STREQUAL cpl) OR (${TYPE} STREQUAL module)))
 408         message(FATAL_ERROR "Unknown type ${TYPE} for module ${MODULE}")
 409     endif()
 410
 411     if(DEFINED __subsystem)
 412         set_subsystem(${MODULE} ${__subsystem})
 413     endif()
 414
 415     #set unicode definitions
 416     if(__module_UNICODE)
 417         add_target_compile_definitions(${MODULE} UNICODE _UNICODE)
 418     endif()
 419
 420     # set entry point
 421     if(__module_ENTRYPOINT OR (__module_ENTRYPOINT STREQUAL "0"))
 422         list(GET __module_ENTRYPOINT 0 __entrypoint)
 423         list(LENGTH __module_ENTRYPOINT __length)
 424         if(${__length} EQUAL 2)
 425             list(GET __module_ENTRYPOINT 1 __entrystack)
 426         elseif(NOT ${__length} EQUAL 1)
 427             message(FATAL_ERROR "Wrong arguments for ENTRYPOINT parameter of set_module_type : ${__module_ENTRYPOINT}")
 428         endif()
 429         unset(__length)
 430     elseif(${TYPE} STREQUAL nativecui)
 431         set(__entrypoint NtProcessStartup)
 432         set(__entrystack 4)
 433     elseif(${TYPE} STREQUAL win32cui)
 434         if(__module_UNICODE)
 435             set(__entrypoint wmainCRTStartup)
 436         else()
 437             set(__entrypoint mainCRTStartup)
 438         endif()
 439     elseif(${TYPE} STREQUAL win32gui)
 440         if(__module_UNICODE)
 441             set(__entrypoint wWinMainCRTStartup)
 442         else()
 443             set(__entrypoint WinMainCRTStartup)
 444         endif()
 445     elseif((${TYPE} STREQUAL win32dll) OR (${TYPE} STREQUAL win32ocx)
 446             OR (${TYPE} STREQUAL cpl))
 447         set(__entrypoint DllMainCRTStartup)
 448         set(__entrystack 12)
 449     elseif((${TYPE} STREQUAL kernelmodedriver) OR (${TYPE} STREQUAL wdmdriver))
 450         set(__entrypoint DriverEntry)
 451         set(__entrystack 8)
 452     elseif(${TYPE} STREQUAL nativedll)
 453         set(__entrypoint DllMain)
 454         set(__entrystack 12)
 455     elseif(${TYPE} STREQUAL module)
 456         set(__entrypoint 0)
 457     endif()
 458
 459     if(DEFINED __entrypoint)
 460         if(DEFINED __entrystack)
 461             set_entrypoint(${MODULE} ${__entrypoint} ${__entrystack})
 462         else()
 463             set_entrypoint(${MODULE} ${__entrypoint})
 464         endif()
 465     endif()
 466
 467     #set base address
 468     if(__module_IMAGEBASE)
 469         set_image_base(${MODULE} __module_IMAGEBASE)
 470     elseif(${TYPE} STREQUAL win32dll)
 471         if(DEFINED baseaddress_${MODULE})
 472             set_image_base(${MODULE} ${baseaddress_${MODULE}})
 473         else()
 474             message(STATUS "${MODULE} has no base address")
 475         endif()
 476     elseif((${TYPE} STREQUAL kernelmodedriver) OR (${TYPE} STREQUAL wdmdriver))
 477         set_image_base(${MODULE} 0x00010000)
 478     endif()
 479
 480     # Now do some stuff which is specific to each type
 481     if((${TYPE} STREQUAL kernelmodedriver) OR (${TYPE} STREQUAL wdmdriver))
 482         add_dependencies(${MODULE} bugcodes)
 483         set_target_properties(${MODULE} PROPERTIES SUFFIX ".sys")
 484     endif()
 485
 486     if(${TYPE} STREQUAL win32ocx)
 487         set_target_properties(${MODULE} PROPERTIES SUFFIX ".ocx")
 488     endif()
 489
 490     if(${TYPE} STREQUAL cpl)
 491         set_target_properties(${MODULE} PROPERTIES SUFFIX ".cpl")
 492     endif()
 493
 494     # do compiler specific stuff
 495     set_module_type_toolchain(${MODULE} ${TYPE})
 496 endfunction()
 497
 498 function(preprocess_file __in __out)
 499     set(__arg ${__in})
 500     foreach(__def in ${ARGN})
 501         list(APPEND __arg -D${__def})
 502     endforeach()
 503     if(MSVC)
 504         add_custom_command(OUTPUT ${_out}
 505             COMMAND ${CMAKE_C_COMPILER} /EP ${__arg}
 506             DEPENDS ${__in})
 507     else()
 508         add_custom_command(OUTPUT ${_out}
 509             COMMAND ${CMAKE_C_COMPILER} -E ${__arg}
 510             DEPENDS ${__in})
 511     endif()
 512 endfunction()
 513
 514 function(get_includes OUTPUT_VAR)
 515     get_directory_property(_includes INCLUDE_DIRECTORIES)
 516     foreach(arg ${_includes})
 517         list(APPEND __tmp_var -I${arg})
 518     endforeach()
 519     set(${OUTPUT_VAR} ${__tmp_var} PARENT_SCOPE)
 520 endfunction()
 521
 522 function(get_defines OUTPUT_VAR)
 523     get_directory_property(_defines COMPILE_DEFINITIONS)
 524     foreach(arg ${_defines})
 525         list(APPEND __tmp_var -D${arg})
 526     endforeach()
 527     set(${OUTPUT_VAR} ${__tmp_var} PARENT_SCOPE)
 528 endfunction()
 529
 530 if(NOT MSVC AND (CMAKE_VERSION VERSION_GREATER 2.8.7))
 531     function(add_object_library _target)
 532         add_library(${_target} OBJECT ${ARGN})
 533     endfunction()
 534 else()
 535     function(add_object_library _target)
 536         add_library(${_target} ${ARGN})
 537     endfunction()
 538 endif()