For in-source builds we must tolerate non-tracked files in the
source tree. Previously we only tolerated them for dashboard
builds during automated testing, but we should tolerate them for
local user builds too.
Fixes: #17868
Evaluate to false on `$<COMPILE_LANGUAGE:Lang>` if language `Lang`
is not loaded. This is helpful in exported targets consumed in other
projects that may not enable all the same languages.
Fixes: #17952
7e8046e20b Help: add release notes for NAMELINK_COMPONENT
c02eeb0853 Help: clarify "undefined behavior" in install(EXPORT) command
edcb545a24 install: add test for new NAMELINK_COMPONENT parameter
0212d7c762 install: add NAMELINK_COMPONENT argument
cbb609072f Help: clean up install(TARGETS) documentation
b81280ba1f Help: add list of command signatures to top of INSTALL page
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Alex Turbov <i.zaufi@gmail.com>
Merge-request: !1982
The "undefined behavior" that the install(EXPORT) command warned about
was simply the possibility of build errors (or other errors) if the
referenced targets aren't installed. As long as the referenced targets
are installed, this won't be an issue.
* Introduce `CMAKE_PROJECT_VERSION` and the corresponsing components:
`CMAKE_PROJECT_VERSION_MAJOR`, `CMAKE_PROJECT_VERSION_MINOR`,
`CMAKE_PROJECT_VERSION_PATCH` and `CMAKE_PROJECT_VERSION_TWEAK`.
* `CPack` module use `CMAKE_PROJECT_VERSION_MAJOR`,
`CMAKE_PROJECT_VERSION_MINOR` and `CMAKE_PROJECT_VERSION_PATCH`
to initialize corresponsing CPack variables.
Upstream libuv commits:
* node-v0.6.0~28 (linux: use ioctl(FIONBIO) to set O_NONBLOCK, saves a syscall, 2011-10-29)
* v1.11.0~11 (unix: use async-signal safe functions between fork and exec, 2016-12-12)
left an asymmetry in the way O_NONBLOCK is set and cleared. Normally
ioctl/FIONBIO is used for both. However, uv_spawn uses fcntl/O_NONBLOCK
to clear O_NONBLOCK between fork and exec. This fails on Linux/sparc64
where setting via ioctl/FIONBIO actually sets two bits (in O_NDELAY)
that cause clearing via fcntl/O_NONBLOCK to be silently ignored (though
clearing via ioctl/FIONBIO or fcntl/O_NDELAY works).
Since CMake commit v3.11.0-rc1~117^2 (CTest: Re-implement test process
handling using libuv, 2017-12-10), CTest uses libuv. On Linux/sparc64
child processes have been started with non-blocking output pipes. This
can lead to write errors or lost output from children not prepared to
deal with `EAGAIN` on stdout or stderr.
Fix this for now by switching libuv back to fcntl/O_NONBLOCK to set and
clear O_NONBLOCK when compiled on Linux/sparc64.
LibUV-Issue: 1830
Fixes: #17941
The two-argument forms of `AddDefineFlag` and `RemoveDefineFlag`
need no access to `cmMakefile` class members. They are used only
within the implementation file.
When calling
source_group(TREE <root> PREFIX "" FILES ...)
the files located at the root directory were not assigned
to the correct source group: they were put in a default
group (e.g. "Source Files" in Visual Studio).
Fixes: #17608
Michael Stürmer