63195d3d7a
A CMake change included in CMake 4.0 makes `AIX` into a variable
(similar to `APPLE`, etc.)
ff03db6657
However, `${CMAKE_SYSTEM_NAME}` unfortunately also expands exactly to
`AIX` and `if` auto-expands variable names in CMake. That means you get
a double expansion if you write:
`if (${CMAKE_SYSTEM_NAME} MATCHES "AIX")`
which becomes:
`if (AIX MATCHES "AIX")`
which is as if you wrote:
`if (ON MATCHES "AIX")`
You can prevent this by quoting the expansion of "${CMAKE_SYSTEM_NAME}",
due to policy
[CMP0054](https://cmake.org/cmake/help/latest/policy/CMP0054.html#policy:CMP0054)
which is on by default in 4.0+. Most of the LLVM CMake already does
this, but this PR fixes the remaining cases where we do not.
clangd
clangd is a language server, and provides C++ IDE features to editors. This is not its documentation.
- the website is https://clangd.llvm.org/.
- the bug tracker is https://github.com/clangd/clangd/issues
- the source code is hosted at https://github.com/llvm/llvm-project/tree/main/clang-tools-extra/clangd.
- the website source code is at https://github.com/llvm/clangd-www/
Communication channels
If you have any questions or feedback, you can reach community and developers through one of these channels:
- chat: #clangd room hosted on LLVM's Discord channel.
- user questions and feature requests can be asked in the clangd topic on LLVM Discussion Forums
Building and testing clangd
For a minimal setup on building clangd:
-
Clone the LLVM repo to
$LLVM_ROOT. -
Create a build directory, for example at
$LLVM_ROOT/build. -
Inside the build directory run:
cmake $LLVM_ROOT/llvm/ -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_PROJECTS="clang;clang-tools-extra".- We suggest building in
Releasemode as building DEBUG binaries requires considerably more resources. You can check Building LLVM with CMake documentation for more details about cmake flags. - In addition to that using
Ninjaas a generator rather than defaultmakeis preferred. To do that consider passing-G Ninjato cmake invocation. - Finally, you can turn on assertions via
-DLLVM_ENABLE_ASSERTS=On.
- We suggest building in
-
Afterwards you can build clangd with
cmake --build $LLVM_ROOT/build --target clangd, similarly run tests by changing target tocheck-clangd.