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Given that the previous design would require the use of a default allocator to have `ArgIterator.init()` work in WASI, and since in Zig we're trying to avoid default allocators, I've changed the design slightly in that now `init()` is a compile error in WASI, and instead in its message it points to `initWithAllocator(*mem.Allocator)`. The latter by virtue of requiring an allocator as an argument can safely be used in WASI as well as on other OSes (where the allocator argument is simply unused). When using `initWithAllocator` it is then natural to remember to call `deinit()` after being done with the iterator. Also, to make use of this, I've also added `argsWithAllocator` function which is equivalent to `args` minus the requirement of supplying an allocator and being fallible. Finally, I've also modified the WASI only test `process.ArgWasiIterator` to test all OSes.
A general-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
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Building from Source
Note that you can download a binary of master branch.
Stage 1: Build Zig from C++ Source Code
Dependencies
POSIX
- cmake >= 2.8.5
- gcc >= 5.0.0 or clang >= 3.6.0
- LLVM, Clang, LLD development libraries == 10.x, compiled with the same gcc or clang version above
- Use the system package manager, or build from source.
Windows
- cmake >= 3.15.3
- Microsoft Visual Studio. Supported versions:
- 2015 (version 14)
- 2017 (version 15.8)
- 2019 (version 16)
- LLVM, Clang, LLD development libraries == 10.x
- Use the pre-built binaries or build from source.
Instructions
POSIX
mkdir build
cd build
cmake ..
make install
MacOS
brew install cmake llvm
brew outdated llvm || brew upgrade llvm
mkdir build
cd build
cmake .. -DCMAKE_PREFIX_PATH=$(brew --prefix llvm)
make install
You will now run into this issue: homebrew and llvm 10 packages in apt.llvm.org are broken with undefined reference to getPollyPluginInfo
Please help upstream LLVM and Homebrew solve this issue, there is nothing Zig can do about it. See that issue for a workaround you can do in the meantime.
Windows
See https://github.com/ziglang/zig/wiki/Building-Zig-on-Windows