From 280140595fcfe9676ed32a7906eb7958a4c595b1 Mon Sep 17 00:00:00 2001
From: "Daniel A.C. Martin" <github@daniel-martin.co.uk>
Date: Sun, 26 Nov 2023 16:32:36 +0000
Subject: [PATCH] fix: Prevent segfault when using add.Module()

This duplicates the source file string (as is done in other places such
as `addAssemblyFile()`) in order to prevent a segfault when the supplied
string is freed by the caller. This is still seen when the caller makes
use of a defer statement.
---
 lib/std/Build.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/std/Build.zig b/lib/std/Build.zig
index 9b1677c40f..7ace959473 100644
--- a/lib/std/Build.zig
+++ b/lib/std/Build.zig
@@ -869,7 +869,7 @@ pub fn createModule(b: *Build, options: CreateModuleOptions) *Module {
     const module = b.allocator.create(Module) catch @panic("OOM");
     module.* = .{
         .builder = b,
-        .source_file = options.source_file,
+        .source_file = options.source_file.dupe(b),
         .dependencies = moduleDependenciesToArrayHashMap(b.allocator, options.dependencies),
     };
     return module;