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Fix missing BUFSIZ for wasm32 in libc

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This commit is contained in:
Alex Orlenko
2026-01-22 15:46:31 +00:00
parent e33bcf7938
commit 86d63ef27b
2 changed files with 12 additions and 4 deletions
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mlua-sys/src/lua51/lauxlib.rs
+6 -2
View File
@@ -154,10 +154,14 @@ pub unsafe fn luaL_opt<T>(
// Generic Buffer Manipulation
//
#[cfg(target_arch = "wasm32")]
const BUFSIZ: usize = 1024; // WASI libc's BUFSIZ is 1024
#[cfg(not(target_arch = "wasm32"))]
const BUFSIZ: usize = libc::BUFSIZ as usize;
// The buffer size used by the lauxlib buffer system.
// The "16384" workaround is taken from the LuaJIT source code.
#[rustfmt::skip]
pub const LUAL_BUFFERSIZE: usize = if libc::BUFSIZ > 16384 { 8192 } else { libc::BUFSIZ as usize };
pub const LUAL_BUFFERSIZE: usize = if BUFSIZ > 16384 { 8192 } else { BUFSIZ };
#[repr(C)]
pub struct luaL_Buffer {
mlua-sys/src/lua52/lauxlib.rs
+6 -2
View File
@@ -189,10 +189,14 @@ pub unsafe fn luaL_opt<T>(
// Generic Buffer Manipulation
//
#[cfg(target_arch = "wasm32")]
const BUFSIZ: usize = 1024; // WASI libc's BUFSIZ is 1024
#[cfg(not(target_arch = "wasm32"))]
const BUFSIZ: usize = libc::BUFSIZ as usize;
// The buffer size used by the lauxlib buffer system.
// The "16384" workaround is taken from the LuaJIT source code.
#[rustfmt::skip]
pub const LUAL_BUFFERSIZE: usize = if libc::BUFSIZ > 16384 { 8192 } else { libc::BUFSIZ as usize };
pub const LUAL_BUFFERSIZE: usize = if BUFSIZ > 16384 { 8192 } else { BUFSIZ };
#[repr(C)]
pub struct luaL_Buffer {