From d61c751015a74dd8d353a5042ddf5f3f47fab4ce Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Tue, 16 Sep 2025 07:08:16 -0700
Subject: [PATCH] Disable shared objects with threads

---
 cmake/wasi-sdk-sysroot.cmake | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/cmake/wasi-sdk-sysroot.cmake b/cmake/wasi-sdk-sysroot.cmake
index 91aaaf1..c1837c9 100644
--- a/cmake/wasi-sdk-sysroot.cmake
+++ b/cmake/wasi-sdk-sysroot.cmake
@@ -148,10 +148,11 @@ function(define_wasi_libc_sub target target_suffix lto)
   set(extra_make_flags default)
 
   # If LTO is enabled then pass that on to wasi-libc, and otherwise make sure to
-  # build a `libc.so` dynamic library.
+  # build a `libc.so` dynamic library where possible (not compatible with
+  # threads though)
   if(lto)
     list(APPEND extra_make_flags LTO=full)
-  else()
+  elseif(NOT ${target} MATCHES threads)
     list(APPEND extra_make_flags libc_so)
   endif()