Replace our hard-coded default for `/Zi` with a first-class abstraction
to select the debug information format an enumeration of logical
names. We've long hesitated to do this because the idea of "debug
information format" touches on related concepts on several platforms.
Avoid that scope creep by simply defining an abstraction that applies
only when targeting the MSVC ABI on Windows.
Removing the old default flag requires a policy because existing
projects may rely on string processing to edit them and choose a
runtime library under the old behavior. Add policy CMP0141 to
provide compatibility.
Fixes: #10189
Introduce a new signature for try_compile (and try_run) which removes
the `bindir` argument and requires the SOURCES tag. This will eventually
allow us to add other ways of providing sources, but also allows us to
change the behavior without breaking compatibility.
The old signature uses a special, but non-unique temporary location
inside the specified `bindir`, which conventionally is just the
project's build directory. The new signature unconditionally uses the a
unique temporary directory which is unconditionally within the project's
build directory (which is no longer separately specified). This ensures
that successive runs do not overwrite previous runs, will simplify
debugging, and should also, eventually, allow us to execute multiple
trials in parallel.
a6abdf6c8f Help: Consistent options declaration -- short first, then long
f4563f05db Help: Value for `--graphviz=` option actually is mandatory
04843d743e Help: Replace a bunch of more ``--option`` to `:option:` role
09446266ee Help: Replace mentions of ``-D`` option with :option:`-D` role
b57f27b087 Help: Replace mentions of ``-T`` and ``-A`` options with role
d25b232dee Help: Replace mentions of ``-G`` option with :option:`-G` role
63940e1cab Help: Replace mentions of ``-C`` option with :option:`-C` role
183a49cbfe Help: Replace mentions of ``-S`` option with :option:`-S` role
...
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !7544
The `PREFIX/(Foo|foo|FOO).*/(cmake|CMake)/(Foo|foo|FOO).*/` search
path is the similar to the one already exists
`PREFIX/(Foo|foo|FOO).*/(lib/ARCH|lib*|share)/cmake/(Foo|foo|FOO).*/`.
4f7a0c25d2 Help: Document BYPASS_PROVIDER keyword for find_package()
76370e06b8 Help: Minor grammar fix for the Using Dependencies manual
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !7501
The docs for if(PATH_EQUAL) did not mention the component-wise
nature of the checks. It also claimed no normalization was
performed, but multiple separators are effectively collapsed
(part of normalization). Improve the wording to clarify both of
these points.
Also update the corresponding description of cmake_path(COMPARE),
which had the same inaccuracy.
Fixes: #23758
This directory will be used to store build-discovered information about
targets such as the modules provided by the files in the relevant
`FILE_SET` types.
A directory is used because basing the name on a `<FILE_NAME>-*.cmake`
pattern makes it end up being globbed in the configuration-dependent
information mechanism. Since old modules and targets may be around,
unconditionally including them may refer to targets that do not actually
exist.
The new sub-command writes a string representation of the
current log level to the output variable given to the
sub-command.
Given that the log-level might be set either via the --log-level
command line option or via the CMAKE_MESSAGE_LOG_LEVEL
cache / regular variables, the priority for each of the log level
sources is as follows, with the first one being the highest:
1) --log-level
2) CMAKE_MESSAGE_LOG_LEVEL regular variable
3) CMAKE_MESSAGE_LOG_LEVEL cache variable
4) default log level (STATUS)
Fixes: #23572
07bc3b07ec gitlab-ci: test C++ modules using GCC
1b2270aa4e ci: add a Docker image to test out C++ modules with GCC
8c5a53096a Tests/RunCMake/CXXModules: add module-using examples
4151547e2f cmGlobalNinjaGenerator: use `cmModuleMapper` implementation
b43bdaff3c cmCxxModuleMapper: implement support for GCC's module map format
02d0f0e752 cmCxxModuleMapper: add source to handle module mapper contents
a046a45aad cmGlobalNinjaGenerator: add a TODO for header units
386465bf83 cmTarget: add support for C++ module fileset types
...
Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Merge-request: !7369
C++ modules have two variants which are of importance to CMake:
- `CXX_MODULES`: interface modules (those using `export module M;`,
`export module M:part;`, or `module M:internal_part;`)
- `CXX_MODULE_HEADER_UNITS`: importable header units
Creating C++ modules or partitions are *not* supported in any other
source listing. This is because the source files must be installed (so
their scope matters), but not part of usage requirements (what it means
for a module source to be injected into a consumer is not clear at this
moment). Due to the way `FILE_SET` works with scopes, they are a perfect
fit as long as `INTERFACE` is not allowed (which it is not).
92e93f5c9e Help: Overhaul and expand the Using Dependencies Guide
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Alex <leha-bot@yandex.ru>
Merge-request: !7332
92e93f5c9e Help: Overhaul and expand the Using Dependencies Guide
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Alex <leha-bot@yandex.ru>
Merge-request: !7332
The guide previously only focused on the find_package() command,
with a bias towards libraries. FetchContent was not mentioned at all.
Reorganise and update the existing content. Add new sections to cover
providing dependencies with FetchContent and dependency providers.
Improve discoverability of the guide by mentioning it at the beginning
of the find_package(), FetchContent and dependency provider docs.
Projects should always have specified one of PRE_BUILD, PRE_LINK or
POST_BUILD, and the documentation has always shown that one must
be given. But the argument parsing logic was such that if none was given,
POST_BUILD would be used and no error or warning would be raised.
Projects may be relying on this behavior, so document it as formally
supported, but not recommended.
Fixes: #23488
In commit 8d7e80cf3d (find_* commands: add control over Windows registry
views, 2022-04-16) we added documentation that is repeated by multiple
find commands. Move it to a dedicated manual section to avoid duplication.
Add policy CMP0137 to propagate both our builtin variables and those
listed by `CMAKE_TRY_COMPILE_PLATFORM_VARIABLES` to `try_compile`
whole-project builds.
Inspired-by: Alexander Neumann <Alexander.Neumann@hamburg.de>
Fixes: #23219
This commit updates the documentation so that the component examples are
specified using title case to match convention used in both the existing
`Installing Exports` section and in the "Mastering CMake" book.
Add a `CMAKE_WATCOM_RUNTIME_LIBRARY` variable to control the
runtime library selection. Add policy CMP0136 to switch to
in place of the old hard-coded default flags.
Fixes: #23178
a693da21f3 Help: from command:if, link to environment variables
ab2bdbaf31 Help: Cross-reference ENV operator from cmake-language(7) manual
ee4e728a69 Help: From Environment Variables section, link to cmake -E env etc
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !7239
Allow FetchContent_MakeAvailable() to try a call to
find_package() first, or redirect a find_package() call to
FetchContent_MakeAvailable(). The user can set variables
to control which of these are allowed or tried by default.
Fixes: #21687
b3e1fcf20a Help: Clarify that find_package GLOBAL argument is supported in full signature
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !7180
If an INTERFACE library has HEADER_SETS, and its header sets contain
files generated by a custom command, the library needs to participate in
the buildsystem so that the files will be generated.
Fixes: #23422
The feature needs a specialized implementation to place headers
in the right place inside frameworks. To avoid silently doing
the wrong thing, make this case an error for the 3.23 series.
Issue: #23386
Similar to GNU tar add a --touch option to the tar extract command to
skip extracting the timestamps from the files in the archive
effectively touching them as if they were just created.
Issue: #22746
Remove the requirement that the variable name have a prefix while
keeping the suffix requirement. Require that the property name
contains an underscore. Update docs and tests accordingly.
Fixes: #23340
87c3b5e421 define_property(): Only test prefix if INITIALIZE_FROM_VARIABLE is given
9b50f221f6 Help: Update the main purpose of define_property()
e993e2c52c Help: Clean up INITIALIZE_FROM_VARIABLE define_property() option
Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Acked-by: Kyle Edwards <kyle.edwards@kitware.com>
Merge-request: !7090
87c3b5e421 define_property(): Only test prefix if INITIALIZE_FROM_VARIABLE is given
9b50f221f6 Help: Update the main purpose of define_property()
e993e2c52c Help: Clean up INITIALIZE_FROM_VARIABLE define_property() option
Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Acked-by: Kyle Edwards <kyle.edwards@kitware.com>
Merge-request: !7090
78e0204e81 Help: Clarify when add_test and test properties support generator expressions
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !7101
