gh-133261: Use __builtin_frame_address() on GCC 9 and older

GCC 9 and older don't have __has_builtin(), but have
__builtin_frame_address() function.

Author: vstinner

Include/internal/pycore_pystate.h

@@ -300,15 +300,15 @@ _Py_AssertHoldsTstateFunc(const char *func)
 #define _Py_AssertHoldsTstate()
 #endif
 
-#if !_Py__has_builtin(__builtin_frame_address) && !defined(_MSC_VER)
+#if !_Py__has_builtin(__builtin_frame_address) && !defined(__GNUC__) && !defined(_MSC_VER)
 static uintptr_t return_pointer_as_int(char* p) {
     return (uintptr_t)p;
 }
 #endif
 
 static inline uintptr_t
 _Py_get_machine_stack_pointer(void) {
-#if _Py__has_builtin(__builtin_frame_address)
+#if _Py__has_builtin(__builtin_frame_address) || defined(__GNUC__)
     return (uintptr_t)__builtin_frame_address(0);
 #elif defined(_MSC_VER)
     return (uintptr_t)_AddressOfReturnAddress();