Fix linking on Android due to Luau JIT (#153)

Author: deviaze

Cargo.toml

@@ -1,15 +1,19 @@
 [package]
 name = "seal"
+authors = ["Dev Chrysalis Dalal <dev@deviaze.com>"]
 version = "0.0.7-rc.1"
 edition = "2024"
 
-[dependencies]
-# need to rely on the git version as it contains the most up-to-date luau;
-# mlua creates official releases very infrequently but khvzak seems to be updating his `main` very regularly upon Luau releases.
-# If this breaks we'll pin to a commit and risk lagging behind Luau
-# but mlua's main branch is relatively stable and hasn't broken for us before nor for other projects.
-# we need to enable error-send so we can propogate errors across threads in std_thread.rs
+# mluau is our custom mlua fork with a greater focus on luau and luau ecosystem
+# support, maintained by Midnight Frost and myself (mostly him).
+[target.'cfg(not(target_os = "android"))'.dependencies]
 mluau = { git = "https://github.com/mluau/mluau.git", features = ["luau", "luau-jit", "serialize", "error-send"] }
+
+[target.'cfg(target_os = "android")'.dependencies]
+# luau jit (ncg) compilation is not available on android
+mluau = { git = "https://github.com/mluau/mluau.git", features = ["luau", "serialize", "error-send"] }
+
+[dependencies]
 regex = "1.11.1"
 # needed for seal setup (really useful!)
 include_dir = { version = "0.7.4" }
@@ -28,6 +32,8 @@ serde-xml-rs = "0.5.1"
 hex = "0.4.3"
 lz4_flex = { version = "0.12" }
 flate2 = "1.0"
+urlencoding = "2.1.3"
+zstd = "0.13.3"
 copy_dir = "0.1.3"
 # we should switch to a more maintained alternative when possible, 
 # but as long as ring receives security updates it's not a huge priority
@@ -36,6 +42,7 @@ rsa = "0.9.8"
 rand = "0.8.5"
 # simple wrapper lib, might want to switch to a more frequently updated one?
 simple_crypt = "0.2.3"
+# @std/str lib
 unicode-segmentation = "1.12.0"
 # used for very fast string pattern searches (str.split*)
 aho-corasick = "1.1.3"
@@ -54,16 +61,18 @@ jiff = "0.2.15"
 # manual terminal stuff and manual astrick password
 crossterm = "0.29.0"
 # determines if we should fallback to stdin handling in @std/io/input and @std/cli
+# as well as what happens to output during errors/panics
 atty = "0.2.14"
 # sane cli input handling in @std/cli
 rustyline = "17.0.2"
 # hidden password handling so i dont have to implement it myself with crossterm
 rpassword = "7.4.0"
-zstd = "0.13.3"
+# format.hexdump and dp
 pretty-hex = "0.4.1"
+# websockets
 tungstenite = { version = "0.28.0", features = ["native-tls"] }
 url = "2.5.7"
-urlencoding = "2.1.3"
+# needed for .env support in @std/env/vars
 dotenvy = "0.15.7"
 
 [profile.dev.package.num-bigint-dig]

src/main.rs

@@ -192,6 +192,7 @@ fn main() -> LuaResult<()> {
     }
 }
 
+#[cfg_attr(target_os = "android", expect(unused_variables))]
 fn set_jit(luau: &Lua) -> bool {
     let should_jit = match std::env::var("SEAL_NO_JIT") {
         Ok(var) if var.eq_ignore_ascii_case("true") => false,
@@ -200,7 +201,10 @@ fn set_jit(luau: &Lua) -> bool {
         Err(_) => true,
     };
 
-    luau.enable_jit(should_jit);
+    #[cfg(not(target_os = "android"))]
+    {
+        luau.enable_jit(should_jit);
+    }
 
     should_jit
 }