Fix alignment on Linux

mxpv · mxpv · commit b96c551b1272 · 2025-08-22T12:36:10.000-07:00
Signed-off-by: Maksym Pavlenko &lt;pavlenko.maksym@gmail.com&gt;
diff --git a/src/Lua.zig b/src/Lua.zig
@@ -295,7 +295,8 @@ pub fn setCallbacks(self: Self, callbacks: anytype) void {
 
     // Store instance pointer in userdata if it's a pointer
     if (is_instance) {
-        cb.userdata = @ptrCast(@constCast(callbacks));
+        // Ensure the pointer is properly aligned before storing
+        cb.userdata = @ptrCast(@alignCast(callbacks));
     } else {
         cb.userdata = null;
     }

Original file line number	Diff line number	Diff line change
`@@ -295,7 +295,8 @@ pub fn setCallbacks(self: Self, callbacks: anytype) void {`
`295`	`295`
`296`	`296`	`// Store instance pointer in userdata if it's a pointer`
`297`	`297`	`if (is_instance) {`
`298`		`- cb.userdata = @ptrCast(@constCast(callbacks));`
	`298`	`+ // Ensure the pointer is properly aligned before storing`
	`299`	`+ cb.userdata = @ptrCast(@alignCast(callbacks));`
`299`	`300`	`} else {`
`300`	`301`	`cb.userdata = null;`
`301`	`302`	`}`