luajit-sys

About this library

This library provide system bindings to the Lua API. The library is statically linked. The current version is 2.0.5. The version number for cargo is 2.0.50 (as in 2.0.5.0, but Cargo doesn't allow 4 digits for versioning). The last number is reserved if the rust version (i.e. this library) has changes. However, this shouldn't technically happen.

You can update this library for a new version of LuaJIT HOWEVER:

If you update Lua, you need to:

- delete the /docs folder, useless for this
- delete the /src/
- run `make amalg` once (manually)
- run `find . -type f -name '*.o' -delete` to delete the object files

This will generate the ljamalg.c file, which is important for building this library. Otherwise you cannot build the library because LuaJIT will complain that lj_ffdef.h is missing. lj_ffdef.h is (probably) generated at build-time, however the LuaJIT Makefile is so unreadable that I cannot see where the file is being generated and the LuaJIT devs simply don't want to provide any answers because they think that make is the greatest build system ever and have never heard of cargo.

This solution consumes more memory, but at least the library builds.

The only thing that has to be adjusted now are the flags. I've tried re-exporting every LuaJIT compile flag that is possible and make it compatible with Rust, however this is a work-in-progress.

cargo features

Choose your target architecture (only one, otherwise it won't compile):

arch_arm = []
arch_mips = []
arch_mipsel = []
arch_powerpc = []
arch_powerpc_spe = []
arch_x64 = []
arch_x86 = []

The default is arch_x64. Then choose your additional flags:

• force_32_bit
• extra_warnings
• enable_lua52_compat
• disable_jit
• nummode_1 | nummode_2
• use_sysmalloc
• use_valgrind
• use_gdb_jit
• use_apicheck
• use_assert
• optimize_size
• ps3
• cellos_lv2

See the Cargo.toml file for information.

Compatability with rlua and hlua

I will try to get rlua and hlua working. However, this library is currently using the Lua 5.1 API, while hlua uses 5.2 and rlua uses 5.3 - I don't know if the APIs will be compatible.