common: detect compilers with extensions off

mcha-forks · Jan 4, 2025 · 25e8aca · 25e8aca
1 parent eaef12d
commit 25e8aca
Showing 1 changed file with 10 additions and 3 deletions.
diff --git a/include/stc/common.h b/include/stc/common.h
@@ -43,9 +43,16 @@ typedef ptrdiff_t       isize;
     typedef int64_t     int64;
     typedef uint64_t    uint64;
 #endif
-#if !defined STC_HAS_TYPEOF && (_MSC_FULL_VER >= 193933428 || \
-    defined __GNUC__ || defined __clang__ || defined __TINYC__)
-    #define STC_HAS_TYPEOF 1
+#ifndef STC_HAS_TYPEOF
+#ifdef __clang__
+    #if !__is_identifier(__typeof__)
+        #define STC_HAS_TYPEOF
+    #endif
+#elif defined(__TINYC__) || _MSC_FULL_VER >= 193933428
+    #define STC_HAS_TYPEOF
+#elif defined(__GNUC__) && __has_builtin(__typeof__)
+    #define STC_HAS_TYPEOF
+#endif
 #endif
 #if defined __GNUC__ || defined __clang__
     #define STC_INLINE static inline __attribute((unused))