Even though Makefile generators pass source files and include
directories by absolute path to the compiler, the compiler may generate
depfile paths relative to the current working directory. For example,
`ccache` with `CCACHE_BASEDIR` may transform paths this way. When
reading a depfile, convert relative dependencies to absolute paths
before placing them in `compiler_depend.make`, which is later evaluated
in the top-level build directory.
Fixes: #22364
Since commit 9054cd05e6 (VS: Add flag table entries for '/external:W*'
flags in VS 16.10, 2021-05-28, v3.20.4~10^2) we map flags to the
`ExternalWarningLevel` element. VS 16.9 does not support that element,
but its `cl` compiler does support the `/external:W*` flags. Filter out
the flag table entry on older VS versions.
Fixes: #22308
Use the same `cmLinkLineComputer` subclass as the generator does. This
affects the base directory from which relative paths are computed.
Fixes: #22301
Extend the fix from commit 67e2130c96 (Makefiles: Fix
CMAKE_EXPORT_COMPILE_COMMANDS crash with custom compile rule,
2020-11-20, v3.19.1~8^2) to work for the `<FLAGS>` placeholder too.
Also fix the test case to actually enable `EXPORT_COMPILE_COMMANDS`
on the test target.
Fixes: #22261
Extend the table of special cases from commit 58a50a3a0a (VS: Fix '-T
version=14.28' under VS 16.9, 2021-03-11, v3.19.7~1^2~1). Add a special
case for the name VS 16.11 will use for VS 16.10's default toolset, so
that it can be used with VS 16.10 too.
Using '-T version=14.29.16.10' actually works under VS 16.10 without
this change, but only because there is only one 14.29 toolset so the
two-component prefix happens to match the right one. Make it explicit.
Issue: #21922
f78b167a23 cmCommandLineArgument: Provide more information syntax error messages
5aa0dec6b0 cmake: `--build` and `--install` error out when encountering bad flags
928cdb17c5 cmCommandLineArgument: Correctly record parsing failures
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !6119
Since commit f3eed2c49d (cmGlobalNinjaGenerator: use P1689 dependency
file format for Fortran, 2019-03-12, v3.20.0-rc1~454^2), Fortran stopped
working in a build tree whose path contains a symlink. The reason is
that the P1689r3 format's `work-directory` field gets populated with the
realpath (via `getcwd`) of the build tree instead of the logical path to
the build tree used for generating relative paths in `build.ninja`.
This causes the `Fortran.dd` file to get absolute (real)paths to `.o`
files, and Ninja does not match them with the relative `.o` file paths
in `build.ninja`.
Fix this by dropping use of the `work-directory` field. This restores
our prior approach of generating paths in the dyndep file using the same
forms of paths received from the buildsystem generator. The P1689r3
paper's format may need to be revised to account for this.
Fixes: #21683
Since commit f65f20938c (Autogen: Avoid processing CSharp targets,
2020-11-12, v3.20.0-rc1~301^2) we collect all sources for a target
earlier than previously. Clear the sources cache so that it will be
re-computed later after AUTOGEN processing.
Fixes: #22085
cmReadGccDepfile() calls cmSystemTools::CollapseFullPath(), which
is not thread safe due to internal caching. Serialize calls to
cmReadGccDepfile() in autogen to avoid thread safety issues.
Fixes: #22014
Since commit f034b0f663 (CMake compilation: do not use compiler
extensions, 2020-03-14, v3.18.0-rc1~494^2), some sources explicitly
enable needed system APIs on some platforms using definitions like
`_POSIX_C_SOURCE` and `_XOPEN_SOURCE`. Drop the definitions for
OpenBSD, which provides the POSIX APIs by default.
With generator expressions in a custom command's `OUTPUT` and
`BYPRODUCTS`, it is possible to have no outputs at all for a particular
configuration. Generate no rule in this case.
Fixes: #21989
769ff05483 Help: Clarify permission-related command options
900184616a Cleanup: Fix misspelt name of local C++ variable
635431a0c9 Tests: Check host platform instead of target for running stat
4ceb0ca59e Tests: Remove redundant files for configure_file() tests
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5945
Under the CMP0118 NEW behavior, sources generated in one directory
should be visible when added to targets in other directories. This was
accidentally left out of commit 6624b65b3f (GENERATED prop: Add
implementation for policy CMP0118 being set to NEW, 2020-11-09,
v3.20.0-rc1~393^2~1).
Fixes: #18399
