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-rw-r--r--libc/src/__support/macros/attributes.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libc/src/__support/macros/attributes.h b/libc/src/__support/macros/attributes.h
index 7e8e2dd..c647467 100644
--- a/libc/src/__support/macros/attributes.h
+++ b/libc/src/__support/macros/attributes.h
@@ -42,7 +42,7 @@
#define LIBC_CONSTINIT
#endif
-#ifdef __clang__
+#if defined(__clang__) && __has_attribute(preferred_type)
#define LIBC_PREFERED_TYPE(TYPE) [[clang::preferred_type(TYPE)]]
#else
#define LIBC_PREFERED_TYPE(TYPE)