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cmake-policies.7.rst 25 KB

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  1. .. cmake-manual-description: CMake Policies Reference
  2. cmake-policies(7)
  3. *****************
  4. .. only:: html
  5. .. contents::
  6. Introduction
  7. ============
  8. CMake policies introduce behavior changes while preserving compatibility
  9. for existing project releases. Policies are deprecation mechanisms, not
  10. feature toggles. Each policy documents a deprecated ``OLD`` behavior and
  11. a preferred ``NEW`` behavior. Projects must be updated over time to
  12. use the ``NEW`` behavior, but their existing releases will continue to
  13. work with the ``OLD`` behavior.
  14. Updating Projects
  15. -----------------
  16. When policies are newly introduced by a version of CMake, their ``OLD``
  17. behaviors are immediately deprecated by that version of CMake and later.
  18. Projects should be updated to use the ``NEW`` behaviors of the policies
  19. as soon as possible.
  20. Use the :command:`cmake_minimum_required` command to record the latest
  21. version of CMake for which a project has been updated.
  22. For example:
  23. ..
  24. Sync this cmake_minimum_required example with ``Help/dev/maint.rst``.
  25. .. code-block:: cmake
  26. cmake_minimum_required(VERSION 3.10...4.2)
  27. This uses the ``<min>...<max>`` syntax to enable the ``NEW`` behaviors
  28. of policies introduced in CMake 4.2 and earlier while only requiring a
  29. minimum version of CMake 3.10. The project is expected to work with
  30. both the ``OLD`` and ``NEW`` behaviors of policies introduced between
  31. those versions.
  32. Transition Schedule
  33. -------------------
  34. To help projects port to the ``NEW`` behaviors of policies on their own
  35. schedule, CMake offers a transition period:
  36. * If a policy is not set by a project, CMake uses its ``OLD`` behavior,
  37. but may warn that the policy has not been set.
  38. * Users running CMake may silence the warning without modifying a
  39. project by setting the :variable:`CMAKE_POLICY_DEFAULT_CMP<NNNN>`
  40. variable as a cache entry on the :manual:`cmake(1)` command line:
  41. .. code-block:: shell
  42. cmake -DCMAKE_POLICY_DEFAULT_CMP0990=OLD ...
  43. * Projects may silence the warning by using the :command:`cmake_policy`
  44. command to explicitly set the policy to ``OLD`` or ``NEW`` behavior:
  45. .. code-block:: cmake
  46. if(POLICY CMP0990)
  47. cmake_policy(SET CMP0990 NEW)
  48. endif()
  49. .. note::
  50. A policy should almost never be set to ``OLD``, except to silence
  51. warnings in an otherwise frozen or stable codebase, or temporarily
  52. as part of a larger migration path.
  53. * If a policy is set to ``OLD`` by a project, CMake versions released
  54. at least |POLICY_OLD_DELAY_WARNING| after the version that introduced
  55. a policy may issue a warning that the policy's ``OLD`` behavior will
  56. be removed from a future version of CMake.
  57. * If a policy is not set to ``NEW`` by a project, CMake versions released
  58. at least |POLICY_OLD_DELAY_ERROR| after the version that introduced a
  59. policy, and whose major version number is higher, may issue an error
  60. that the policy's ``OLD`` behavior has been removed.
  61. .. |POLICY_OLD_DELAY_WARNING| replace:: 2 years
  62. .. |POLICY_OLD_DELAY_ERROR| replace:: 6 years
  63. Supported Policies
  64. ==================
  65. The following policies are supported.
  66. Policies Introduced by CMake 4.2
  67. --------------------------------
  68. .. toctree::
  69. :maxdepth: 1
  70. CMP0204: A character set is always defined when targeting the MSVC ABI. </policy/CMP0204>
  71. CMP0203: _WINDLL is defined for shared libraries targeting the MSVC ABI. </policy/CMP0203>
  72. CMP0202: PDB file names always include their target's per-config POSTFIX. </policy/CMP0202>
  73. CMP0201: Python::NumPy does not depend on Python::Development.Module. </policy/CMP0201>
  74. CMP0200: Location and configuration selection for imported targets is more consistent. </policy/CMP0200>
  75. CMP0199: $<CONFIG> only matches the configuration of the consumed target. </policy/CMP0199>
  76. CMP0198: CMAKE_PARENT_LIST_FILE is not defined in CMakeLists.txt. </policy/CMP0198>
  77. Policies Introduced by CMake 4.1
  78. --------------------------------
  79. .. toctree::
  80. :maxdepth: 1
  81. CMP0197: MSVC link -machine: flag is not in CMAKE_*_LINKER_FLAGS. </policy/CMP0197>
  82. CMP0196: The CMakeDetermineVSServicePack module is removed. </policy/CMP0196>
  83. CMP0195: Swift modules in build trees use the Swift module directory structure. </policy/CMP0195>
  84. CMP0194: MSVC is not an assembler for language ASM. </policy/CMP0194>
  85. CMP0193: GNUInstallDirs caches CMAKE_INSTALL_* with leading 'usr/' for install prefix '/'. </policy/CMP0193>
  86. CMP0192: GNUInstallDirs uses absolute SYSCONFDIR, LOCALSTATEDIR, and RUNSTATEDIR in special prefixes. </policy/CMP0192>
  87. CMP0191: The FindCABLE module is removed. </policy/CMP0191>
  88. CMP0190: FindPython enforce consistency in cross-compiling mode. </policy/CMP0190>
  89. CMP0189: TARGET_PROPERTY evaluates LINK_LIBRARIES properties transitively. </policy/CMP0189>
  90. CMP0188: The FindGCCXML module is removed. </policy/CMP0188>
  91. CMP0187: Include source file without an extension after the same name with an extension. </policy/CMP0187>
  92. CMP0186: Regular expressions match ^ at most once in repeated searches. </policy/CMP0186>
  93. Policies Introduced by CMake 4.0
  94. --------------------------------
  95. .. toctree::
  96. :maxdepth: 1
  97. CMP0185: FindRuby no longer provides upper-case RUBY_* variables. </policy/CMP0185>
  98. CMP0184: MSVC runtime checks flags are selected by an abstraction. </policy/CMP0184>
  99. CMP0183: add_feature_info() supports full Condition Syntax. </policy/CMP0183>
  100. CMP0182: Create shared library archives by default on AIX. </policy/CMP0182>
  101. CMP0181: Link command-line fragment variables are parsed and re-quoted. </policy/CMP0181>
  102. Policies Introduced by CMake 3.31
  103. ---------------------------------
  104. .. toctree::
  105. :maxdepth: 1
  106. CMP0180: project() always sets <PROJECT-NAME>_* as normal variables. </policy/CMP0180>
  107. CMP0179: De-duplication of static libraries on link lines keeps first occurrence. </policy/CMP0179>
  108. CMP0178: Test command lines preserve empty arguments. </policy/CMP0178>
  109. CMP0177: install() DESTINATION paths are normalized. </policy/CMP0177>
  110. CMP0176: execute_process() ENCODING is UTF-8 by default. </policy/CMP0176>
  111. CMP0175: add_custom_command() rejects invalid arguments. </policy/CMP0175>
  112. CMP0174: cmake_parse_arguments(PARSE_ARGV) defines a variable for an empty string after a single-value keyword. </policy/CMP0174>
  113. CMP0173: The CMakeFindFrameworks module is removed. </policy/CMP0173>
  114. CMP0172: The CPack module enables per-machine installation by default in the CPack WIX Generator. </policy/CMP0172>
  115. CMP0171: 'codegen' is a reserved target name. </policy/CMP0171>
  116. Policies Introduced by CMake 3.30
  117. ---------------------------------
  118. .. toctree::
  119. :maxdepth: 1
  120. CMP0170: FETCHCONTENT_FULLY_DISCONNECTED requirements are enforced. </policy/CMP0170>
  121. CMP0169: FetchContent_Populate(depName) single-argument signature is deprecated. </policy/CMP0169>
  122. CMP0168: FetchContent implements steps directly instead of through a sub-build. </policy/CMP0168>
  123. CMP0167: The FindBoost module is removed. </policy/CMP0167>
  124. CMP0166: TARGET_PROPERTY evaluates link properties transitively over private dependencies of static libraries. </policy/CMP0166>
  125. CMP0165: enable_language() must not be called before project(). </policy/CMP0165>
  126. CMP0164: add_library() rejects SHARED libraries when not supported by the platform. </policy/CMP0164>
  127. CMP0163: The GENERATED source file property is now visible in all directories. </policy/CMP0163>
  128. CMP0162: Visual Studio generators add UseDebugLibraries indicators by default. </policy/CMP0162>
  129. Policies Introduced by CMake 3.29
  130. ---------------------------------
  131. .. toctree::
  132. :maxdepth: 1
  133. CMP0161: CPACK_PRODUCTBUILD_DOMAINS defaults to true. </policy/CMP0161>
  134. CMP0160: More read-only target properties now error when trying to set them. </policy/CMP0160>
  135. CMP0159: file(STRINGS) with REGEX updates CMAKE_MATCH_<n>. </policy/CMP0159>
  136. CMP0158: add_test() honors CMAKE_CROSSCOMPILING_EMULATOR only when cross-compiling. </policy/CMP0158>
  137. CMP0157: Swift compilation mode is selected by an abstraction. </policy/CMP0157>
  138. CMP0156: De-duplicate libraries on link lines based on linker capabilities. </policy/CMP0156>
  139. Policies Introduced by CMake 3.28
  140. ---------------------------------
  141. .. toctree::
  142. :maxdepth: 1
  143. CMP0155: C++ sources in targets with at least C++20 are scanned for imports when supported. </policy/CMP0155>
  144. CMP0154: Generated files are private by default in targets using file sets. </policy/CMP0154>
  145. CMP0153: The exec_program command should not be called. </policy/CMP0153>
  146. CMP0152: file(REAL_PATH) resolves symlinks before collapsing ../ components. </policy/CMP0152>
  147. Policies Introduced by CMake 3.27
  148. ---------------------------------
  149. .. toctree::
  150. :maxdepth: 1
  151. CMP0151: AUTOMOC include directory is a system include directory by default. </policy/CMP0151>
  152. CMP0150: ExternalProject_Add and FetchContent_Declare treat relative git repository paths as being relative to parent project's remote. </policy/CMP0150>
  153. CMP0149: Visual Studio generators select latest Windows SDK by default. </policy/CMP0149>
  154. CMP0148: The FindPythonInterp and FindPythonLibs modules are removed. </policy/CMP0148>
  155. CMP0147: Visual Studio generators build custom commands in parallel. </policy/CMP0147>
  156. CMP0146: The FindCUDA module is removed. </policy/CMP0146>
  157. CMP0145: The Dart and FindDart modules are removed. </policy/CMP0145>
  158. CMP0144: find_package uses upper-case PACKAGENAME_ROOT variables. </policy/CMP0144>
  159. Policies Introduced by CMake 3.26
  160. ---------------------------------
  161. .. toctree::
  162. :maxdepth: 1
  163. CMP0143: USE_FOLDERS global property is treated as ON by default. </policy/CMP0143>
  164. Policies Introduced by CMake 3.25
  165. ---------------------------------
  166. .. toctree::
  167. :maxdepth: 1
  168. CMP0142: The Xcode generator does not append per-config suffixes to library search paths. </policy/CMP0142>
  169. CMP0141: MSVC debug information format flags are selected by an abstraction. </policy/CMP0141>
  170. CMP0140: The return() command checks its arguments. </policy/CMP0140>
  171. Policies Introduced by CMake 3.24
  172. ---------------------------------
  173. .. toctree::
  174. :maxdepth: 1
  175. CMP0139: The if() command supports path comparisons using PATH_EQUAL operator. </policy/CMP0139>
  176. CMP0138: CheckIPOSupported uses flags from calling project. </policy/CMP0138>
  177. CMP0137: try_compile() passes platform variables in project mode. </policy/CMP0137>
  178. CMP0136: Watcom runtime library flags are selected by an abstraction. </policy/CMP0136>
  179. CMP0135: ExternalProject and FetchContent ignore timestamps in archives by default for the URL download method. </policy/CMP0135>
  180. CMP0134: Fallback to "HOST" Windows registry view when "TARGET" view is not usable. </policy/CMP0134>
  181. CMP0133: The CPack module disables SLA by default in the CPack DragNDrop Generator. </policy/CMP0133>
  182. CMP0132: Do not set compiler environment variables on first run. </policy/CMP0132>
  183. CMP0131: LINK_LIBRARIES supports the LINK_ONLY generator expression. </policy/CMP0131>
  184. CMP0130: while() diagnoses condition evaluation errors. </policy/CMP0130>
  185. Policies Introduced by CMake 3.23
  186. ---------------------------------
  187. .. toctree::
  188. :maxdepth: 1
  189. CMP0129: Compiler id for MCST LCC compilers is now LCC, not GNU. </policy/CMP0129>
  190. Policies Introduced by CMake 3.22
  191. ---------------------------------
  192. .. toctree::
  193. :maxdepth: 1
  194. CMP0128: Selection of language standard and extension flags improved. </policy/CMP0128>
  195. CMP0127: cmake_dependent_option() supports full Condition Syntax. </policy/CMP0127>
  196. Policies Introduced by CMake 3.21
  197. ---------------------------------
  198. .. toctree::
  199. :maxdepth: 1
  200. CMP0126: set(CACHE) does not remove a normal variable of the same name. </policy/CMP0126>
  201. CMP0125: find_(path|file|library|program) have consistent behavior for cache variables. </policy/CMP0125>
  202. CMP0124: foreach() loop variables are only available in the loop scope. </policy/CMP0124>
  203. CMP0123: ARMClang cpu/arch compile and link flags must be set explicitly. </policy/CMP0123>
  204. CMP0122: UseSWIG use standard library name conventions for csharp language. </policy/CMP0122>
  205. CMP0121: The list command detects invalid indices. </policy/CMP0121>
  206. Policies Introduced by CMake 3.20
  207. ---------------------------------
  208. .. toctree::
  209. :maxdepth: 1
  210. CMP0120: The WriteCompilerDetectionHeader module is removed. </policy/CMP0120>
  211. CMP0119: LANGUAGE source file property explicitly compiles as language. </policy/CMP0119>
  212. CMP0118: GENERATED sources may be used across directories without manual marking. </policy/CMP0118>
  213. CMP0117: MSVC RTTI flag /GR is not added to CMAKE_CXX_FLAGS by default. </policy/CMP0117>
  214. CMP0116: Ninja generators transform DEPFILEs from add_custom_command(). </policy/CMP0116>
  215. CMP0115: Source file extensions must be explicit. </policy/CMP0115>
  216. Policies Introduced by CMake 3.19
  217. ---------------------------------
  218. .. toctree::
  219. :maxdepth: 1
  220. CMP0114: ExternalProject step targets fully adopt their steps. </policy/CMP0114>
  221. CMP0113: Makefile generators do not repeat custom commands from target dependencies. </policy/CMP0113>
  222. CMP0112: Target file component generator expressions do not add target dependencies. </policy/CMP0112>
  223. CMP0111: An imported target missing its location property fails during generation. </policy/CMP0111>
  224. CMP0110: add_test() supports arbitrary characters in test names. </policy/CMP0110>
  225. CMP0109: find_program() requires permission to execute but not to read. </policy/CMP0109>
  226. Policies Introduced by CMake 3.18
  227. ---------------------------------
  228. .. toctree::
  229. :maxdepth: 1
  230. CMP0108: A target cannot link to itself through an alias. </policy/CMP0108>
  231. CMP0107: An ALIAS target cannot overwrite another target. </policy/CMP0107>
  232. CMP0106: The Documentation module is removed. </policy/CMP0106>
  233. CMP0105: Device link step uses the link options. </policy/CMP0105>
  234. CMP0104: CMAKE_CUDA_ARCHITECTURES now detected for NVCC, empty CUDA_ARCHITECTURES not allowed. </policy/CMP0104>
  235. CMP0103: Multiple export() with same FILE without APPEND is not allowed. </policy/CMP0103>
  236. Policies Introduced by CMake 3.17
  237. ---------------------------------
  238. .. toctree::
  239. :maxdepth: 1
  240. CMP0102: mark_as_advanced() does nothing if a cache entry does not exist. </policy/CMP0102>
  241. CMP0101: target_compile_options honors BEFORE keyword in all scopes. </policy/CMP0101>
  242. CMP0100: Let AUTOMOC and AUTOUIC process .hh header files. </policy/CMP0100>
  243. CMP0099: Link properties are transitive over private dependencies of static libraries. </policy/CMP0099>
  244. CMP0098: FindFLEX runs flex in CMAKE_CURRENT_BINARY_DIR when executing. </policy/CMP0098>
  245. Policies Introduced by CMake 3.16
  246. ---------------------------------
  247. .. toctree::
  248. :maxdepth: 1
  249. CMP0097: ExternalProject_Add with GIT_SUBMODULES "" initializes no submodules. </policy/CMP0097>
  250. CMP0096: project() preserves leading zeros in version components. </policy/CMP0096>
  251. CMP0095: RPATH entries are properly escaped in the intermediary CMake install script. </policy/CMP0095>
  252. Policies Introduced by CMake 3.15
  253. ---------------------------------
  254. .. toctree::
  255. :maxdepth: 1
  256. CMP0094: FindPython3, FindPython2 and FindPython use LOCATION for lookup strategy. </policy/CMP0094>
  257. CMP0093: FindBoost reports Boost_VERSION in x.y.z format. </policy/CMP0093>
  258. CMP0092: MSVC warning flags are not in CMAKE_{C,CXX}_FLAGS by default. </policy/CMP0092>
  259. CMP0091: MSVC runtime library flags are selected by an abstraction. </policy/CMP0091>
  260. CMP0090: export(PACKAGE) does not populate package registry by default. </policy/CMP0090>
  261. CMP0089: Compiler id for IBM Clang-based XL compilers is now XLClang. </policy/CMP0089>
  262. Policies Introduced by CMake 3.14
  263. ---------------------------------
  264. .. toctree::
  265. :maxdepth: 1
  266. CMP0088: FindBISON runs bison in CMAKE_CURRENT_BINARY_DIR when executing. </policy/CMP0088>
  267. CMP0087: install(SCRIPT | CODE) supports generator expressions. </policy/CMP0087>
  268. CMP0086: UseSWIG honors SWIG_MODULE_NAME via -module flag. </policy/CMP0086>
  269. CMP0085: IN_LIST generator expression handles empty list items. </policy/CMP0085>
  270. CMP0084: The FindQt module does not exist for find_package(). </policy/CMP0084>
  271. CMP0083: Add PIE options when linking executable. </policy/CMP0083>
  272. CMP0082: Install rules from add_subdirectory() are interleaved with those in caller. </policy/CMP0082>
  273. Policies Introduced by CMake 3.13
  274. ---------------------------------
  275. .. toctree::
  276. :maxdepth: 1
  277. CMP0081: Relative paths not allowed in LINK_DIRECTORIES target property. </policy/CMP0081>
  278. CMP0080: BundleUtilities cannot be included at configure time. </policy/CMP0080>
  279. CMP0079: target_link_libraries allows use with targets in other directories. </policy/CMP0079>
  280. CMP0078: UseSWIG generates standard target names. </policy/CMP0078>
  281. CMP0077: option() honors normal variables. </policy/CMP0077>
  282. CMP0076: target_sources() command converts relative paths to absolute. </policy/CMP0076>
  283. Policies Introduced by CMake 3.12
  284. ---------------------------------
  285. .. toctree::
  286. :maxdepth: 1
  287. CMP0075: Include file check macros honor CMAKE_REQUIRED_LIBRARIES. </policy/CMP0075>
  288. CMP0074: find_package uses PackageName_ROOT variables. </policy/CMP0074>
  289. CMP0073: Do not produce legacy _LIB_DEPENDS cache entries. </policy/CMP0073>
  290. Policies Introduced by CMake 3.11
  291. ---------------------------------
  292. .. toctree::
  293. :maxdepth: 1
  294. CMP0072: FindOpenGL prefers GLVND by default when available. </policy/CMP0072>
  295. Policies Introduced by CMake 3.10
  296. ---------------------------------
  297. .. toctree::
  298. :maxdepth: 1
  299. CMP0071: Let AUTOMOC and AUTOUIC process GENERATED files. </policy/CMP0071>
  300. CMP0070: Define file(GENERATE) behavior for relative paths. </policy/CMP0070>
  301. Policies Introduced by CMake 3.9
  302. --------------------------------
  303. .. toctree::
  304. :maxdepth: 1
  305. CMP0069: INTERPROCEDURAL_OPTIMIZATION is enforced when enabled. </policy/CMP0069>
  306. CMP0068: RPATH settings on macOS do not affect install_name. </policy/CMP0068>
  307. Policies Introduced by CMake 3.8
  308. --------------------------------
  309. .. toctree::
  310. :maxdepth: 1
  311. CMP0067: Honor language standard in try_compile() source-file signature. </policy/CMP0067>
  312. Policies Introduced by CMake 3.7
  313. --------------------------------
  314. .. toctree::
  315. :maxdepth: 1
  316. CMP0066: Honor per-config flags in try_compile() source-file signature. </policy/CMP0066>
  317. Unsupported Policies
  318. ====================
  319. The following policies are no longer supported.
  320. Projects' calls to :command:`cmake_minimum_required(VERSION)` or
  321. :command:`cmake_policy(VERSION)` must set them to ``NEW``.
  322. Their ``OLD`` behaviors have been removed from CMake.
  323. .. _`Policies Introduced by CMake 3.4`:
  324. Policies Introduced by CMake 3.4, Removed by CMake 4.0
  325. ------------------------------------------------------
  326. .. toctree::
  327. :maxdepth: 1
  328. CMP0065: Do not add flags to export symbols from executables without the ENABLE_EXPORTS target property. </policy/CMP0065>
  329. CMP0064: Support new TEST if() operator. </policy/CMP0064>
  330. .. _`Policies Introduced by CMake 3.3`:
  331. Policies Introduced by CMake 3.3, Removed by CMake 4.0
  332. ------------------------------------------------------
  333. .. toctree::
  334. :maxdepth: 1
  335. CMP0063: Honor visibility properties for all target types. </policy/CMP0063>
  336. CMP0062: Disallow install() of export() result. </policy/CMP0062>
  337. CMP0061: CTest does not by default tell make to ignore errors (-i). </policy/CMP0061>
  338. CMP0060: Link libraries by full path even in implicit directories. </policy/CMP0060>
  339. CMP0059: Do not treat DEFINITIONS as a built-in directory property. </policy/CMP0059>
  340. CMP0058: Ninja requires custom command byproducts to be explicit. </policy/CMP0058>
  341. CMP0057: Support new IN_LIST if() operator. </policy/CMP0057>
  342. .. _`Policies Introduced by CMake 3.2`:
  343. Policies Introduced by CMake 3.2, Removed by CMake 4.0
  344. ------------------------------------------------------
  345. .. toctree::
  346. :maxdepth: 1
  347. CMP0056: Honor link flags in try_compile() source-file signature. </policy/CMP0056>
  348. CMP0055: Strict checking for break() command. </policy/CMP0055>
  349. .. _`Policies Introduced by CMake 3.1`:
  350. Policies Introduced by CMake 3.1, Removed by CMake 4.0
  351. ------------------------------------------------------
  352. .. toctree::
  353. :maxdepth: 1
  354. CMP0054: Only interpret if() arguments as variables or keywords when unquoted. </policy/CMP0054>
  355. CMP0053: Simplify variable reference and escape sequence evaluation. </policy/CMP0053>
  356. CMP0052: Reject source and build dirs in installed INTERFACE_INCLUDE_DIRECTORIES. </policy/CMP0052>
  357. CMP0051: List TARGET_OBJECTS in SOURCES target property. </policy/CMP0051>
  358. .. _`Policies Introduced by CMake 3.0`:
  359. Policies Introduced by CMake 3.0, Removed by CMake 4.0
  360. ------------------------------------------------------
  361. .. toctree::
  362. :maxdepth: 1
  363. CMP0050: Disallow add_custom_command SOURCE signatures. </policy/CMP0050>
  364. CMP0049: Do not expand variables in target source entries. </policy/CMP0049>
  365. CMP0048: project() command manages VERSION variables. </policy/CMP0048>
  366. CMP0047: Use QCC compiler id for the qcc drivers on QNX. </policy/CMP0047>
  367. CMP0046: Error on non-existent dependency in add_dependencies. </policy/CMP0046>
  368. CMP0045: Error on non-existent target in get_target_property. </policy/CMP0045>
  369. CMP0044: Case sensitive Lang_COMPILER_ID generator expressions. </policy/CMP0044>
  370. CMP0043: Ignore COMPILE_DEFINITIONS_Config properties. </policy/CMP0043>
  371. CMP0042: MACOSX_RPATH is enabled by default. </policy/CMP0042>
  372. CMP0041: Error on relative include with generator expression. </policy/CMP0041>
  373. CMP0040: The target in the TARGET signature of add_custom_command() must exist. </policy/CMP0040>
  374. CMP0039: Utility targets may not have link dependencies. </policy/CMP0039>
  375. CMP0038: Targets may not link directly to themselves. </policy/CMP0038>
  376. CMP0037: Target names should not be reserved and should match a validity pattern. </policy/CMP0037>
  377. CMP0036: The build_name command should not be called. </policy/CMP0036>
  378. CMP0035: The variable_requires command should not be called. </policy/CMP0035>
  379. CMP0034: The utility_source command should not be called. </policy/CMP0034>
  380. CMP0033: The export_library_dependencies command should not be called. </policy/CMP0033>
  381. CMP0032: The output_required_files command should not be called. </policy/CMP0032>
  382. CMP0031: The load_command command should not be called. </policy/CMP0031>
  383. CMP0030: The use_mangled_mesa command should not be called. </policy/CMP0030>
  384. CMP0029: The subdir_depends command should not be called. </policy/CMP0029>
  385. CMP0028: Double colon in target name means ALIAS or IMPORTED target. </policy/CMP0028>
  386. CMP0027: Conditionally linked imported targets with missing include directories. </policy/CMP0027>
  387. CMP0026: Disallow use of the LOCATION target property. </policy/CMP0026>
  388. CMP0025: Compiler id for Apple Clang is now AppleClang. </policy/CMP0025>
  389. CMP0024: Disallow include export result. </policy/CMP0024>
  390. .. _`Policies Introduced by CMake 2.8`:
  391. Policies Introduced by CMake 2.8, Removed by CMake 4.0
  392. ------------------------------------------------------
  393. .. toctree::
  394. :maxdepth: 1
  395. CMP0023: Plain and keyword target_link_libraries signatures cannot be mixed. </policy/CMP0023>
  396. CMP0022: INTERFACE_LINK_LIBRARIES defines the link interface. </policy/CMP0022>
  397. CMP0021: Fatal error on relative paths in INCLUDE_DIRECTORIES target property. </policy/CMP0021>
  398. CMP0020: Automatically link Qt executables to qtmain target on Windows. </policy/CMP0020>
  399. CMP0019: Do not re-expand variables in include and link information. </policy/CMP0019>
  400. CMP0018: Ignore CMAKE_SHARED_LIBRARY_Lang_FLAGS variable. </policy/CMP0018>
  401. CMP0017: Prefer files from the CMake module directory when including from there. </policy/CMP0017>
  402. CMP0016: target_link_libraries() reports error if its only argument is not a target. </policy/CMP0016>
  403. CMP0015: link_directories() treats paths relative to the source dir. </policy/CMP0015>
  404. CMP0014: Input directories must have CMakeLists.txt. </policy/CMP0014>
  405. CMP0013: Duplicate binary directories are not allowed. </policy/CMP0013>
  406. CMP0012: if() recognizes numbers and boolean constants. </policy/CMP0012>
  407. .. _`Policies Introduced by CMake 2.6`:
  408. Policies Introduced by CMake 2.6, Removed by CMake 4.0
  409. ------------------------------------------------------
  410. .. toctree::
  411. :maxdepth: 1
  412. CMP0011: Included scripts do automatic cmake_policy PUSH and POP. </policy/CMP0011>
  413. CMP0010: Bad variable reference syntax is an error. </policy/CMP0010>
  414. CMP0009: FILE GLOB_RECURSE calls should not follow symlinks by default. </policy/CMP0009>
  415. CMP0008: Libraries linked by full-path must have a valid library file name. </policy/CMP0008>
  416. CMP0007: list command no longer ignores empty elements. </policy/CMP0007>
  417. CMP0006: Installing MACOSX_BUNDLE targets requires a BUNDLE DESTINATION. </policy/CMP0006>
  418. CMP0005: Preprocessor definition values are now escaped automatically. </policy/CMP0005>
  419. CMP0004: Libraries linked may not have leading or trailing whitespace. </policy/CMP0004>
  420. CMP0003: Libraries linked via full path no longer produce linker search paths. </policy/CMP0003>
  421. CMP0002: Logical target names must be globally unique. </policy/CMP0002>
  422. CMP0001: CMAKE_BACKWARDS_COMPATIBILITY should no longer be used. </policy/CMP0001>
  423. CMP0000: A minimum required CMake version must be specified. </policy/CMP0000>