From 289fad11d21b6dfc9687abd04726030342669453 Mon Sep 17 00:00:00 2001
From: Diomidis Spinellis <dds@aueb.gr>
Date: Mon, 24 Jun 2024 23:06:19 +0300
Subject: [PATCH] Fix attribute handling

- Add a __has_attribute(x) pre-defined macro.
  Its value is 1 to minimize compile-time errors that might occur
  if an attribute is not supported.

- Remove __attribute__(x) macro definitions, as this is internally
  supported.
---
 include/template/gcc-defs.h | 2 +-
 src/defs.h                  | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/template/gcc-defs.h b/include/template/gcc-defs.h
index d272622d..1173aa82 100644
--- a/include/template/gcc-defs.h
+++ b/include/template/gcc-defs.h
@@ -35,7 +35,6 @@
 #define __atomic_fetch_sub(x,y) (*(x)-=(y))
 #define __atomic_fetch_sub_explicit(x,y,z) (*(x)-=(y))
 #define __atomic_thread_fence(x)
-#define __attribute__(x)
 #define __auto_type auto
 #define __builtin_add_overflow(x,y,z) ((x), (y), (z), 1)
 #define __builtin_add_overflow_p(x,y,z) ((x), (y), 1)
@@ -154,6 +153,7 @@
 #define __COUNTER__ 0
 #define __extension
 #pragma define_immutable __extension__
+#define __has_attribute(x) 1
 #define __int128 long
 #define __int128_t long
 #define __uint128_t long
diff --git a/src/defs.h b/src/defs.h
index 991fcd67..0df520bd 100644
--- a/src/defs.h
+++ b/src/defs.h
@@ -52,7 +52,6 @@
 #endif
 
 #define __extension__
-#define __attribute__(x)
 #define __const const
 #define __builtin_va_list void *
 #define __builtin_stdarg_start