Problem:
- tee was vendored in ceb7eb5230 but
forgot to add it to `build.zig`.
- xxd was vendored in 5bb8734fb6 but
the old XXD_URL is still referenced.
Solution:
- update `build.zig`
- remove XXD_URL
Problem:
When building Neovim with Emscripten for WebAssembly, the
`CMAKE_TOOLCHAIN_FILE` is not propagated to dependency builds.
So libuv attempts to include Linux-specific headers like
`sys/epoll.h` which don't exist in the WebAssembly environment.
From #37572:
…/NeovimWeb/external/neovim/.deps/build/src/libuv/src/unix/linux.c:44:10:
fatal error: 'sys/epoll.h' file not found
44 | #include <sys/epoll.h> | ^~~~~~~~~~~~~
Solution:
1. Add initialization for DEPS_CMAKE_ARGS to prevent CMake errors.
2. Implement conditional logic to always pass CMAKE_TOOLCHAIN_FILE to
dependencies.
This allows dependencies like libuv to detect they're building for
WebAssembly and disable incompatible Linux specific features such as
epoll which resolves the sys/epoll.h error.
Fixes compilation/link/installation on Cygwin with bundled dependencies
(cmake.deps). Only builds with LuaJIT are fixed. Linking against PUC LUA still
does not work.
Note: Luajit technically does not support Cygwin:
55a42da36e
* x64: Add support for CET IBT.
* Gracefully handle broken custom allocator.
* Add GNU/Hurd build support.
* Fix io.write() of newly created buffer.
* Fix reporting of an error during error handling.
Problem:
Additional include directories in DEPS_INCLUDE_FLAGS variable are not
quoted. Paths with spaces break the resulting compile command.
Solution:
Enclose values in double quotes.
Note: normally we should avoid manual quoting, but in this case we can't
because of how `DEPS_INCLUDE_FLAGS` is used in `BuildLuv.cmake`
and `BuildLpeg.cmake`.
CMake is functions/macros are case-insensitive (unlike variables), but
names differing only by case (e.g. "BuildLuaJit" instead of
"BuildLuajit") may look the same at a glance. This can be confusing if
you do a case-sensitive search, such as by using the * key in neovim to
search for other instances of the word under the cursor.
