[libc++abi] Fix broken check for _LIBCPP_HAS_THREAD_API_PTHREAD

[ldionne]

We were still using the old defined(_LIBCPP_HAS_THREAD_API_PTHREAD) check, which is always true.

[ldionne]

CC @philnik777

[llvmbot]

@llvm/pr-subscribers-libcxxabi

Author: Louis Dionne (ldionne)

Changes

We were still using the old defined(_LIBCPP_HAS_THREAD_API_PTHREAD) check, which is always true.

---

Full diff: https://github.com/llvm/llvm-project/pull/118999.diff

1 Files Affected:

• (modified) libcxxabi/src/cxa_guard_impl.h (+2-2)

diff --git a/libcxxabi/src/cxa_guard_impl.h b/libcxxabi/src/cxa_guard_impl.h
index 7b05bf32f3eda7..191a589176b1a3 100644
--- a/libcxxabi/src/cxa_guard_impl.h
+++ b/libcxxabi/src/cxa_guard_impl.h
@@ -156,12 +156,12 @@ class AtomicInt {
 //                       PlatformGetThreadID
 //===----------------------------------------------------------------------===//
 
-#if defined(__APPLE__) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
+#if defined(__APPLE__) && _LIBCPP_HAS_THREAD_API_PTHREAD
 uint32_t PlatformThreadID() {
   static_assert(sizeof(mach_port_t) == sizeof(uint32_t), "");
   return static_cast<uint32_t>(pthread_mach_thread_np(std::__libcpp_thread_get_current_id()));
 }
-#elif defined(SYS_gettid) && defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
+#elif defined(SYS_gettid) && _LIBCPP_HAS_THREAD_API_PTHREAD
 uint32_t PlatformThreadID() {
   static_assert(sizeof(pid_t) == sizeof(uint32_t), "");
   return static_cast<uint32_t>(syscall(SYS_gettid));