Revert the changes from commit d5b5c19278 (cmGlobalGenerator:
FindMakeProgram() before CMakeDetermineSystem, 2020-06-15,
v3.19.0-rc1~619^2~3) and commit ef91fb02f3 (cmGlobalGenerator:
FindMakeProgram() at a generator-specific time, 2020-11-23,
v3.19.1~2^2). We must delay selecting the location of MSBuild until
after an instance of Visual Studio has been selected.
It is now safe to revert the ordering because the motivating use
case (sysroot detection in Platform/Android-Determine) has been
implemented another way.
Fixes: #22782
The Xcode "new build system" only considers a script build phase up to
date if it has run before, even if outputs are newer than inputs. Use a
deterministic object id for script build phases associated with custom
commands so that they do not need to re-run after CMake re-generates the
project.
Fixes: #21669
Generalize the change from commit bffb17be3d (Xcode: Inherit target
library and framework search paths from project, 2020-11-04,
v3.19.0-rc3~4^2) to apply to framework and other kinds of search paths
added either for include directories or for linking.
Issue: #21617
This commit also prepares for embedding things other than
frameworks. In the future, we may want to embed resources and
other types supported by Xcode, so the target properties have
been documented in a way that clearly signals the future intent.
d5b5c192 moved FindMakeProgram() to an earlier time, which resulted
in CMAKE_MAKE_PROGRAM not being read from the toolchain file. Change
it to only call FindMakeProgram() early in the specific cases of
Visual Studio and Xcode, and restore the old behavior for all other
generators.
Fixes: #21486
The target has not been generated since commit d92d51429e (BUG: fix for bug
6193, fix xcode depend helper, 2008-01-10, v2.6.0~553). Remove it from
the list of special targets.
Extend the `-T <toolset>` option to support a `buildsystem=` field with
the Xcode generator. Add a `CMAKE_XCODE_BUILD_SYSTEM` variable to
inform project code about the selected build system variant.
#pragma once is a widely supported compiler pragma, even though it is
not part of the C++ standard. Many of the issues keeping #pragma once
from being standardized (distributed filesystems, build farms, hard
links, etc.) do not apply to CMake - it is easy to build CMake on a
single machine. CMake also does not install any header files which can
be consumed by other projects (though cmCPluginAPI.h has been
deliberately omitted from this conversion in case anyone is still using
it.) Finally, #pragma once has been required to build CMake since at
least August 2017 (7f29bbe6 enabled server mode unconditionally, which
had been using #pragma once since September 2016 (b13d3e0d)). The fact
that we now require C++11 filters out old compilers, and it is unlikely
that there is a compiler which supports C++11 but does not support
#pragma once.
Do not attach a custom command to a target if it is already attached to one of
the target's dependencies. The command's output will be available by the time
the target needs it because the dependency containing the command will have
already been built.
Since commit fb45559e09 (Xcode: Process targets in depth-first order during
generation, 2018-07-19, v3.13.0-rc1~293^2) we generate a target only after
generating its dependencies. Therefore when visiting the custom commands in a
target, we can assume that custom commands in its dependencies have already
been visited.
Add external libraries as fileRefs to Xcode project and add those
references to Link Binary With Libraries build phase. This allows
linking .a, .o, .dylib, .framework and .tbd libraries through "Link
Binary With Libraries" build phase, as opposed to `OTHER_LINKER_FLAGS`.
This improves on the approach added by commit 58c05e1c73 (Xcode: Use
"Link Binary With Libraries" build phase when possible, 2020-06-12).
Try linking all target linked libraries through frameworks build phase
instead of linker flags, thus letting Xcode manage build product paths
correctly. Prevent adding duplicate entries to "Link Binary With
Libraries" build phase.
Add check for configuration-dependent linking - in case the library is
not present in all configurations revert back to linker flags which are
per-configuration.
This does change the order of libraries linked, but that does not seem
to matter for Apple linkers invoked by Xcode, even for static libraries.
The linker will go back and re-consider a static library from earlier
on the link line when more symbols from its objects are needed.
Fixes: #14185
Fix diagnostics that appear on macOS with clang-tidy-8. Suppress cases
where we intentionally take an argument by value to let the caller
choose whether to copy or move.
The `CONFIGURATION_BUILD_DIR` value in the Xcode project file specifies
where to place the library artifact. For object libraries we've used
the `Objects-normal` directory to hide away the `.a` that we otherwise
cannot stop Xcode from producing. The parent of this directory is also
specific to the target and does not vary with Xcode's sanitizer
features, so move the artifact there.
Issue: #16289
This refactors a std::vector<std::string> into a class so that
we can extend the features to represent things such as multiple
chained commands in the future.
Run the `clang-format.bash` script to update all our C and C++ code to a
new style defined by `.clang-format`. Use `clang-format` version 6.0.
* If you reached this commit for a line in `git blame`, re-run the blame
operation starting at the parent of this commit to see older history
for the content.
* See the parent commit for instructions to rebase a change across this
style transition commit.
While we already support `cmake --build . -- -j`, the options after `--`
are specific to the native build tool. Add new options `--parallel
[<N>]` and `-j [<N>]` to abstract this and map to the proper option
for the native build tool.
Since commit v3.11.0-rc1~467^2 (VS,Xcode: Add CMakeLists.txt sources
without mutating targets, 2017-10-18) we do not add `CMakeLists.txt` to
target sources but instead generate references to them directly. This
broke projects that explicitly specify their `CMakeLists.txt` file as a
source file because the explicit entry is no longer consolidated with
the generated one.
Teach the relevant generators to avoid duplicating `CMakeLists.txt`
source references and add test cases.
Fixes: #17828
