I am proud to announce the fourth CMake 3.16 release candidate.
https://cmake.org/download/
Documentation is available at:
https://cmake.org/cmake/help/v3.16
Release notes appear below and are also published at
https://cmake.org/cmake/help/v3.16/release/3.16.html
Some of the more significant changes in CMake 3.16 are:
* CMake learned to support the Objective C ("OBJC") and Objective
C++ ("OBJCXX") languages. They may be enabled via the "project()"
and "enable_language()" commands. When "OBJC" or "OBJCXX" is
enabled, source files with the ".m" or ".mm", respectively, will be
compiled as Objective C or C++. Otherwise they will be treated as
plain C++ sources as they were before.
* The "target_precompile_headers()" command was added to specify a
list of headers to precompile for faster compilation times.
* The "UNITY_BUILD" target property was added to tell generators to
batch include source files for faster compilation times.
* The "find_file()", "find_library()", "find_path()",
"find_package()", and "find_program()" commands have learned to
check the following variables to control searching
* "CMAKE_FIND_USE_CMAKE_ENVIRONMENT_PATH" - Controls the searching
the cmake-specific environment variables.
* "CMAKE_FIND_USE_CMAKE_PATH" - Controls the searching the cmake-
specific cache variables.
* "CMAKE_FIND_USE_CMAKE_SYSTEM_PATH" - Controls the searching
cmake platform specific variables.
* "CMAKE_FIND_USE_PACKAGE_ROOT_PATH" - Controls the searching of
"_ROOT" variables.
* "CMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH" - Controls the
searching the standard system environment variables.
* The "file()" command learned a new sub-command,
"GET_RUNTIME_DEPENDENCIES", which allows you to recursively get the
list of libraries linked by an executable or library. This sub-
command is intended as a replacement for "GetPrerequisites".
* "ctest(1)" now has the ability to serialize tests based on
resource requirements for each test. See Resource Allocation for
details.
* On AIX, executables using the "ENABLE_EXPORTS" target property now
produce a linker import file with a ".imp" extension in addition to
the executable file. Plugins (created via "add_library()" with the
"MODULE" option) that use "target_link_libraries()" to link to the
executable for its symbols are now linked using the import file. The
"install(TARGETS)" command now installs the import file as an
"ARCHIVE" artifact.
* On AIX, runtime linking is no longer enabled by default. CMake
provides the linker enough information to resolve all symbols up
front. One may manually enable runtime linking for shared libraries
and/or loadable modules by adding "-Wl,-G" to their link flags (e.g.
in the "CMAKE_SHARED_LINKER_FLAGS" or "CMAKE_MODULE_LINKER_FLAGS"
variable). One may manually enable runtime linking for executables
by adding "-Wl,-brtl" to their link flags (e.g. in the
"CMAKE_EXE_LINKER_FLAGS" variable).
* "cmake(1)" "-E" now supports "true" and "false" commands, which do
nothing while returning exit codes of 0 and 1, respectively.
* "cmake(1)" gained a "--trace-redirect=" command line option
that can be used to redirect "--trace" output to a file instead of
"stderr".
* The "cmake(1)" "--loglevel" command line option has been renamed
to "--log-level" to make it consistent with the naming of other
command line options. The "--loglevel" option is still supported to
preserve backward compatibility.
* The "CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY" variable has been
deprecated. Use the "CMAKE_FIND_USE_PACKAGE_REGISTRY" variable
instead.
* The "GetPrerequisites" module has been deprecated, as it has been
superceded by "file(GET_RUNTIME_DEPENDENCIES)".
CMake 3.16 Release Notes
Changes made since CMake 3.15 include the following.
New Features
Languages
-
* CMake learned to support the Objective C ("OBJC") and Objective
C++ ("OBJCXX") languages. They may be enabled via the "project()"
and "enable_language()" commands. When "OBJC" or "OBJCXX" is
enabled, source files with the ".m" or ".mm", respectively, will be
compiled as Objective C or C++. Otherwise they will be treated as
plain C++ sources as they were before.
Compilers
-
* The "Clang" compiler is now supported on "Solaris".
Platforms
-
* On AIX, executables using the "ENABLE_EXPORTS" target property now
produce a linker import file with a ".imp" extension in addition to
the executable file. Plugins (created via "add_library()" with the
"MODULE" option) that use "target_link_libraries()" to link to the
executable for its symbols are now linked using the import file. The
"install(TARGETS)" command now installs the import file as an
"ARCHIVE" artifact.
* On AIX, runtime linking is no longer enabled by default. CMake
provides the linker enough information to resolve all symbols up
front. One
