From: Alejandro Colomar <alx@kernel.org>
Date: Thu, 7 Aug 2025 12:24:13 +0000 (+0200)
Subject: lib/attr.h: __has_c_attribute(): Define fallback
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6d02454bbbe97130a5172211c14932c3a516c122;p=thirdparty%2Fshadow.git

lib/attr.h: __has_c_attribute(): Define fallback

This allows using __has_c_attribute() in compilers that don't have it.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
---

diff --git a/lib/attr.h b/lib/attr.h
index d7237722d..2dce14114 100644
--- a/lib/attr.h
+++ b/lib/attr.h
@@ -5,6 +5,11 @@
 #include "config.h"
 
 
+#if !defined(__has_c_attribute)
+# define __has_c_attribute(x)  0
+#endif
+
+
 #if (__GNUC__ >= 10)
 # define MAYBE_UNUSED                [[gnu::unused]]
 # define NORETURN                    [[gnu::__noreturn__]]