--- a/vendor/libghostty-vt/pkg/wuffs/build.zig
+++ b/vendor/libghostty-vt/pkg/wuffs/build.zig
@@ -59,6 +59,7 @@
             .target = target,
             .optimize = optimize,
             .link_libc = windows,
+            .libc_file = if (b.libc_file) |path| .{ .cwd_relative = path } else null,
         });
 
         // Wuffs only needs stdlib.h and string.h from libc, and only for
--- a/vendor/libghostty-vt/pkg/wuffs/src/main.zig
+++ b/vendor/libghostty-vt/pkg/wuffs/src/main.zig
@@ -19,12 +19,11 @@
 // Wuffs' generated `wuffs_foo__bar__alloc()` convenience functions are the
 // only code that references libc's calloc/free. We never call them
 // and linker garbage collection strips them, but that isn't guaranteed.
-// When libc isn't linked there would be nothing to provide calloc/free if
-// they survive, so export stubs to satisfy the link. Weak so that any real
-// definition wins. Hidden keeps them out of the export table where the
-// format honors it (e.g. wasm).
+// Freestanding consumers may have no allocator to resolve these symbols.
+// Never export stubs for hosted targets: hidden weak symbols in a static
+// archive can override the embedding executable's dynamically linked libc.
 comptime {
-    if (!builtin.link_libc) {
+    if (!builtin.link_libc and builtin.os.tag == .freestanding) {
         @export(&callocStub, .{
             .name = "calloc",
             .linkage = .weak,