Entries of the `CPATH` environment variable are implicitly searched as
include directories by some C/C++ compilers. Since commit 5990ecb741
(Compute implicit include directories from compiler output, 2018-12-07,
v3.14.0-rc1~108^2) these entries are detected by CMake and included in
the `CMAKE_{C,CXX}_IMPLICIT_INCLUDE_DIRECTORIES` variables.
However, we should not exclude them from explicit specification via `-I`
or particularly `-isystem` because they are meant as user-specified
include directories that can be re-ordered without breaking compiler
builtin headers. In particular, we need explicit requests via
`include_directories` with the `SYSTEM` option to result in `-isystem`
so that third-party headers do not produce warnings.
Co-Author: Ben Boeckel <ben.boeckel@kitware.com>
Fixes: #19291
74829f01b1 Help: Add notes for topic 'clang-gnulike-support'
19669abe1d Tests: handle string escaping differences with NMake+clang
a2a90f41e3 Tests: require C++14 for the Tutorial
4819ff9647 Tests: fix failures with gnu mode clang on windows
26af0b25e7 cmake: use correct stack size with gnu mode clang on windows
d44c0db0b2 clang: setup correct configuration in gnu mode
b7d5ef23e9 cmGlobalNinjaGenerator: use gnu compatible paths with clang in gnu mode
3d0210d8dc binutils: add the llvm-* variants to the tool lists.
...
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Francesco Bertolaccini <francesco@bertolaccini.dev>
Acked-by: Stanislav Ershov <digital.stream.of.mind@gmail.com>
Acked-by: Saleem Abdulrasool <compnerd@compnerd.org>
Merge-request: !2992
Replace the `upload_release.cmake` script with a `push.bash` script
that is more configurable from the command line and that does not
hard-code any destinations. Instead of using `scp` to access
`cmake.org` directly, push the files atomically to a staging
directory from which another process will actually upload them.
Clang++ on Windows with the MSVC STL requires C++14 to compile.
The C++ standard is set to C++14 for the entire tutorial instead of
MSVC/clang specific conditions to keep it simple.
Root causes were:
* Using incorrect conditions (assuming MSVC-like command line mode)
* Trying to compile the MSVC STL in C++11 mode, when parts of it require
C++14 or enabling MS extensions in clang.
* Missing flush in a testcase using stdout in a dll and a main part
with static crt
For special properties like `INCLUDE_DIRECTORIES`, the pointer returned
by `cmTarget::GetProperty` is only valid until the next time the same
special property is queried on *any* target. When evaluating a nested
`TARGET_PROPERTY` generator expression we may look up such a property
more than once on different targets. Fix `TargetPropertyNode::Evaluate`
to store the lookup result in locally owned memory earlier.
Fixes: #19286
Add a `CMAKE_FIND_PACKAGE_PREFER_CONFIG` variable to tell
`find_package` calls to look for a package configuration file
first even if a find module is available.
Fixes: #16805, #19236
Previously code like
file(REMOVE_RECURSE "${accidentally_missing_variable}")
treated the empty string as a relative path with respect to the
current directory and removed its contents. Change this behavior
to ignore the empty string with a warning instead.
Normally such behavior changes are done with a policy, but in this case
such code is likely a real bug in project code that can delete data.
Fixes: #19274
f945c3e755 Tests: Extend MakeClean test to cover subdirectories without targets
1ded3599d6 Makefiles: Process ADDTIONAL_CLEAN_FILES dir prop at directory level
827da1119e Makefiles: Make build root targets "all", "clean" and "preinstall" recursive
adc3459707 Makefiles: Avoid pointer repurposing
0d41b45cc9 Makefiles: Inline range loop range arguments
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3338
a9180ccf9a Tests: add a check for the Swift compiler
d745551fb6 Help: add some initial documentation for Swift support
9a182c9e5b Auxiliary: update vim syntax highlighting
e9b0063e8e Modules: add build rules for Swift Ninja support
b6412e3e38 Ninja: add placeholders to support Swift build
7d7f31161d Ninja: add support for Swift's output-file-map.json
d688c4c19d Swift: remove unnecessary unreleased Ninja infrastructure
0723582208 Swift: Detect compiler version
...
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3297
This adds a subdirectory to the MakeClean test, in which files are added to
the `ADDITIONAL_CLEAN_FILES` directory property, but which holds no targets.
eda3963615 UseSWIG: Use ADDITIONAL_CLEAN_FILES for cleaning
8c47be28cc UseJava: Use ADDITIONAL_CLEAN_FILES for cleaning
ac86c02d1b UseEcos: Use ADDITIONAL_CLEAN_FILES for cleaning
2532e00339 FindDoxygen: Use ADDITIONAL_CLEAN_FILES for cleaning
4edc0ef359 Test: Improve WarnUnusedCliUnused to run on all generators
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3328
In the WarnUnusedCliUnused test, the whole CMakeCache.txt was removed in the
clean stage to trigger the same CMake warning in re-builds. This technique
worked only in the Makefile generators and the test was limited to these.
Now only the variable of interest is removed from the cache by using a
`unset(UNUSED_CLI_VARIABLE CACHE)` statement in the CMakeLists.txt file.
This makes the WarnUnusedCliUnused test run on all generators
d156f8f5a2 CompileFeatures: Record when MSVC gained full CXX14 support
62dbe53a8a CompileFeatures: Record when Intel gained full CXX14 support
1ebb0d79fe CompileFeatures: Relax cxx_relaxed_constexpr compiler requirements
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3292
Provide a way for custom commands and targets to set the pool variable
of the ninja build statement. Setting `JOB_POOL` is not compatible with
`USES_TERMINAL`, which implies the `console` pool.
The option is silently ignored with other generators.
Closes: #18483
26025d6e10 cmUVProcessChain: Add cmUVProcessChain
6b04d1cdc2 cmUVStreambuf: Initialize all members on construction
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !3275
