X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/88bc8332eb14bcc4780fd3fe3dd4de2205c31dbf..5fbd17e369ca30a47ab8a2eda0b2f2ea9b690bb4:/src/conf_post.h

diff --git a/src/conf_post.h b/src/conf_post.h
index 479d044877..1a080fad63 100644
--- a/src/conf_post.h
+++ b/src/conf_post.h
@@ -245,7 +245,9 @@ extern void _DebPrint (const char *fmt, ...);
 # define ATTRIBUTE_MALLOC
 #endif
 
-#if 4 < __GNUC__ + (3 <= __GNUC_MINOR__)
+#if (__clang__					\
+     ? __has_attribute (alloc_size)		\
+     : 4 < __GNUC__ + (3 <= __GNUC_MINOR__))
 # define ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args))
 #else
 # define ATTRIBUTE_ALLOC_SIZE(args)