I am proud to announce the second CMake 3.15 release candidate.
https://cmake.org/download/
Documentation is available at:
https://cmake.org/cmake/help/v3.15
Release notes appear below and are also published at
https://cmake.org/cmake/help/v3.15/release/3.15.html
Some of the more significant changes in CMake 3.15 are:
- The “CMAKE_MSVC_RUNTIME_LIBRARY” variable and
“MSVC_RUNTIME_LIBRARY” target property were introduced to select the
runtime library used by compilers targeting the MSVC ABI. See policy
“CMP0091”. - With MSVC-like compilers the value of “CMAKE__FLAGS” no
longer contains warning flags like “/W3” by default. See policy
“CMP0092”. - The “Clang” compiler variant on Windows that targets the MSVC ABI
but has a GNU-like command line is now supported. - Preliminary support for the “Swift” language was added to the
“Ninja” generator. - The “$<COMPILE_LANG_AND_ID:…>” generator expression was
introduced to allow specification of compile options for target
files based on the “CMAKE__COMPILER_ID” and “LANGUAGE” of each
source file. - The “generator expressions” “C_COMPILER_ID”, “CXX_COMPILER_ID”,
“CUDA_COMPILER_ID”, “Fortran_COMPILER_ID”, “COMPILE_LANGUAGE”,
“COMPILE_LANG_AND_ID”, and “PLATFORM_ID” learned to support matching
one value from a comma-separated list. - The “CMAKE_FIND_PACKAGE_PREFER_CONFIG” variable was added to tell
“find_package()” calls to look for a package configuration file
first even if a find module is available. - The “PUBLIC_HEADER” and “PRIVATE_HEADER” properties may now be set
on Interface Libraries. The headers specified by those properties
can be installed using the “install(TARGETS)” command by passing the
“PUBLIC_HEADER” and “PRIVATE_HEADER” arguments respectively. - The “CMAKE_VS_JUST_MY_CODE_DEBUGGING” variable and
“VS_JUST_MY_CODE_DEBUGGING” target property were added to enable the
Just My Code feature of the Visual Studio Debugger when compiling
with MSVC cl 19.05 and higher. - The “FindBoost” module was reworked to expose a more consistent
user experience between its “Config” and “Module” modes and with
other find modules in general. - The “message()” command learned new types: “NOTICE”, “VERBOSE”,
“DEBUG” and “TRACE”. - The “export(PACKAGE)” command now does nothing unless enabled via
“CMAKE_EXPORT_PACKAGE_REGISTRY”. See policy “CMP0090”.
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 |
Changes made since CMake 3.14 include the following. New Features ============ Generators ---------- * The "Xcode" generator now supports per-target schemes. See the "CMAKE_XCODE_GENERATE_SCHEME" variable and "XCODE_GENERATE_SCHEME" target property. * The "Green Hills MULTI" generator has been updated: * It now supports the "add_custom_command()" and "add_custom_target()" commands. * It is now available on Linux. Languages --------- * Preliminary support for the "Swift" language was added to the "Ninja" generator: * Use the "SWIFTC" environment variable to specify a compiler. * The "Swift_DEPENDENCIES_FILE" target property and "Swift_DEPENDENCIES_FILE" source file property were added to customize dependency files. * The "Swift_MODULE_NAME" target property was added to customize the Swift module name. * The "Swift_DIAGNOSTICS_FILE" source property was added to indicate where to write the serialised Swift diagnostics. The Swift support is experimental, not considered stable, and may change in future releases of CMake. Compilers --------- * The "Clang" compiler variant on Windows that targets the MSVC ABI but has a GNU-like command line is now supported. * Support for the Clang-based ARM compiler was added with compiler id "ARMClang". * Support was added for the IAR compiler architectures Renesas RX, RL78, RH850 and Texas Instruments MSP430. * Support was added for the IAR compilers built for Linux (IAR BuildLx). Command-Line ------------ * The "CMAKE_GENERATOR" environment variable was added to specify a default generator to use when "cmake(1)" is run without a "-G" option. Additionally, environment variables "CMAKE_GENERATOR_PLATFORM", "CMAKE_GENERATOR_TOOLSET", and "CMAKE_GENERATOR_INSTANCE" were created to configure the generator. * The "cmake(1)" "--build" tool "--target" parameter gained support for multiple targets, e.g. "cmake --build . --target Library1 Library2". It now also has a short form "-t" alias, e.g. "cmake --build . -t Library1 Library2". * The "cmake(1)" command gained a new "--install" option. This may be used after building a project to run installation without using the generated build system or the native build tool. * The "cmake(1)" command learned a new CLI option "--loglevel". * The "cmake(1)" "-E remove_directory" command-line tool learned to support removing multiple directories. * The "cmake(1)" "-E tar" tool has been improved: * It now continues adding files to an archive even if some of the files are not readable. This behavior is more consistent with the classic "tar" tool. * It now parses all flags, and if an invalid flag was provided, a warning is issued. * It now displays an error if no action flag was specified, along with a list of possible actions: "t" (list), "c" (create) or "x" (extract). * It now supports extracting ("-x") or listing ("-t") only specific files or directories. * It now supports Zstandard compression with a "--zstd" option. Zstandard was designed to give a compression ratio comparable to that of the DEFLATE (zip) algorithm, but faster, especially for decompression. Commands -------- * The "add_custom_command()" and "add_custom_target()" commands gained a new "JOB_POOL" option that works with the "Ninja" generator to set the pool variable on the build statement. * The "add_library()" command "ALIAS" option learned to support import libraries of the "UNKNOWN" type. * The "cmake_parse_arguments()" command gained an additional "_KEYWORDS_MISSING_VALUES" output variable to report keyword arguments that were given by the caller with no values. * The "execute_process()" command gained a "COMMAND_ECHO" option and supporting "CMAKE_EXECUTE_PROCESS_COMMAND_ECHO" variable to enable echoing of the command-line string before execution. * The "file(INSTALL)" command learned a new argument, "FOLLOW_SYMLINK_CHAIN", which can be used to recursively resolve and install symlinks. * "list()" learned new sub-commands: "PREPEND", "POP_FRONT" and "POP_BACK". * The "message()" command learned new types: "NOTICE", "VERBOSE", "DEBUG" and "TRACE". * The "string()" learned a new sub-command "REPEAT". Variables --------- * The "CMAKE_CROSSCOMPILING_EMULATOR" variable and corresponding "CROSSCOMPILING_EMULATOR" target property learned to support arguments to the emulator. * The "CMAKE_FIND_PACKAGE_PREFER_CONFIG" variable was added to tell "find_package()" calls to look for a package configuration file first even if a find module is available. * The "CMAKE_FRAMEWORK" variable was added to initialize the "FRAMEWORK" property on all targets. * The "CMAKE_VS_JUST_MY_CODE_DEBUGGING" variable and "VS_JUST_MY_CODE_DEBUGGING" target property were added to enable the Just My Code feature of the Visual Studio Debugger when compiling with MSVC cl 19.05 and higher. * The "CMAKE_MSVC_RUNTIME_LIBRARY" variable and "MSVC_RUNTIME_LIBRARY" target property were introduced to select the runtime library used by compilers targeting the MSVC ABI. See policy "CMP0091". * The "CMAKE_PROJECT_INCLUDE" and "CMAKE_PROJECT_INCLUDE_BEFORE" variables were added to allow injection of custom code at the sites of "project()" calls without knowing the project name a priori. Properties ---------- * The "ADDITIONAL_CLEAN_FILES" target property and "ADDITIONAL_CLEAN_FILES" directory property were added. They allow to register additional files that should be removed during the clean stage. * The "PUBLIC_HEADER" and "PRIVATE_HEADER" properties may now be set on Interface Libraries. The headers specified by those properties can be installed using the "install(TARGETS)" command by passing the "PUBLIC_HEADER" and "PRIVATE_HEADER" arguments respectively. * The "VS_PACKAGE_REFERENCES" target property was added to tell Visual Studio Generators to add references to "nuget" packages. * The "VS_PROJECT_IMPORT" target property was added to allow managed Visual Studio project files to import external ".props" files. * The "VS_NO_SOLUTION_DEPLOY" target property was added to tell Visual Studio Generators whether to deploy an artifact to the WinCE or Windows Phone target device. Modules ------- * The "FindBoost" module was reworked to expose a more consistent user experience between its “Config” and “Module” modes and with other find modules in general. * A new imported target "Boost::headers" is now defined (same as "Boost::boost"). * New output variables "Boost_VERSION_MACRO", "Boost_VERSION_MAJOR", "Boost_VERSION_MINOR", "Boost_VERSION_PATCH", and "Boost_VERSION_COUNT" were added. * The "QUIET" argument passed to "find_package()" is no longer ignored in config mode. Note that the CMake package shipped with Boost "1.70.0" ignores the "QUIET" argument passed to "find_package()". This is fixed in the next Boost release. * The input switch "Boost_DETAILED_FAILURE_MSG" was removed. * "Boost_VERSION" now reports the version in "x.y.z" format in module mode. See policy "CMP0093". * The "FindCups" module now provides imported targets. * The "FindEnvModules" module was added to use Lua- and TCL-based environment modules in CTest Scripts. * The "FindGLEW" module now provides an interface more consistent with what upstream GLEW provides in its own CMake package files. * The "FindPkgConfig" now populates "INTERFACE_LINK_OPTIONS" property of imported targets with other (non-library) linker flags. * The "FindPostgreSQL" module learned to find debug and release variants separately. * Modules "FindPython3", "FindPython2" and "FindPython" gained additional lookup strategies and controls, and a new default. See policy "CMP0094". * Modules "FindPython", "FindPython2" and "FindPython3" gain a new target (respectively "Python::Module", "Python2::Module" and "Python3::Module") which can be used to develop Python modules. * Modules "FindPython3", "FindPython2" and "FindPython" gain capability to control how virtual environments are handled. * The "UseSWIG" module learned to manage alternate library names by passing "-interface " for "python" language or "-dllimport " for "CSharp" language to the "SWIG" compiler. Generator Expressions --------------------- * The "generator expressions" "C_COMPILER_ID", "CXX_COMPILER_ID", "CUDA_COMPILER_ID", "Fortran_COMPILER_ID", "COMPILE_LANGUAGE", "COMPILE_LANG_AND_ID", and "PLATFORM_ID" learned to support matching one value from a comma-separated list. CTest ----- * The "ctest_submit()" command learned a new option: "BUILD_ID". This can be used to store the ID assigned to this build by CDash to a variable. * The "ctest_update()" command learned to honor a new variable: "CTEST_UPDATE_VERSION_OVERRIDE". This can be used to specify the current version of your source tree rather than using the update command to discover the current version that is checked out. CPack ----- * The "CPack IFW Generator" gained a new "CPACK_IFW_PACKAGE_STYLE_SHEET" variable to customize the installer stylesheet. Deprecated and Removed Features =============================== * The "cmake-server(7)" mode has been deprecated and will be removed from a future version of CMake. Please port clients to use the "cmake-file-api(7)" instead. * The "ADDITIONAL_MAKE_CLEAN_FILES" directory property is now deprecated. Use the "ADDITIONAL_CLEAN_FILES" directory property instead. * The variable "CMAKE_AUTOMOC_RELAXED_MODE" is considered deprecated. Support still exists but will be removed in future versions. * The "export(PACKAGE)" command now does nothing unless enabled via "CMAKE_EXPORT_PACKAGE_REGISTRY". See policy "CMP0090". * The "Xcode" generator now requires at least Xcode 5. * An explicit deprecation diagnostic was added for policy "CMP0066" ("CMP0065" and below were already deprecated). The "cmake- policies(7)" manual explains that the OLD behaviors of all policies are deprecated and that projects should port to the NEW behaviors. Other Changes ============= * CMake learned how to compile C++14 with the IBM AIX XL compiler and the SunPro compiler and to compile C++20 with the AppleClang compiler. * With MSVC-like compilers the value of "CMAKE__FLAGS" no longer contains warning flags like "/W3" by default. See policy "CMP0092". * IBM Clang-based XL compilers that define "__ibmxl__" now use the compiler id "XLClang" instead of "XL". See policy "CMP0089". * The "file(REMOVE)" and "file(REMOVE_RECURSE)" commands were changed to ignore empty arguments with a warning instead of treating them as a relative path and removing the contents of the current directory. ---------------------------------------------------------------------------- Changes made since CMake 3.15.0-rc1: Alexander Grund (5): Tests.FindBoost: Don't use BoostConfig in MODULE test Tests.RunCMake.FindBoost: Fix example BoostConfig FindBoost: Don't overwrite Boost_${_comp}_FOUND FindBoost: Add legacy variables and targets for compatibility FindBoost: Add tests for legacy variables Alexander Neumann (1): FindBLAS: Add second try for OpenBLAS with thread libraries. Brad King (8): Help: Document XLClang compiler id fileapi: Factor out helper to construct a version object cmake: Simplify implementation of -E capabilities cmake: Teach -E capabilities to report supported fileapi requests cmake-gui: Update Qt copyright holder in About dialog fileapi: Suppress lint warning about non-move with old jsoncpp Help: Document what project() calls use CMAKE_PROJECT_INCLUDE and friends CMake 3.15.0-rc2 Craig Scott (2): Help: Trivial typo and grammar fixes for FindEnvModules Help: Move ADDITIONAL_MAKE_CLEAN_FILES dir prop to deprecated section Cristian Adam (1): find_package: Fixed CMAKE_FIND_PACKAGE_PREFER_CONFIG Module fallback Marc Chevrier (1): Android: ensure PIE behavior is consistent regardless CMP0083 policy Mathieu Malaterre (1): CPack/NuGet: Find nuget tool on case sensitive file system Robert Maynard (1): FindMPI: Store imported target link flags as a list instead of a string Rolf Eike Beer (1): CheckCXXSymbolExists: reference to CheckCXXSourceCompiles instead of C version Sebastian Holtermann (2): Autogen: Fix header detection for paths with symbolic links Help: Improve ADDITIONAL_CLEAN_FILES documentation |
