X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/732fd4c7e11debd61c97eaaba3038d61e6ec7024..d3155315c85212f224fc5df0239182dafdfd6284:/lib/stdalign.in.h

diff --git a/lib/stdalign.in.h b/lib/stdalign.in.h
index 9bb919ab33..a990050b67 100644
--- a/lib/stdalign.in.h
+++ b/lib/stdalign.in.h
@@ -95,7 +95,10 @@
 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112
 # if defined __cplusplus && 201103 <= __cplusplus
 #  define _Alignas(a) alignas (a)
-# elif (__GNUC__ || __HP_cc || __HP_aCC || __IBMC__ || __IBMCPP__ \
+# elif ((defined __APPLE__ && defined __MACH__                  \
+         ? 4 < __GNUC__ + (1 <= __GNUC_MINOR__)                 \
+         : __GNUC__)                                            \
+        || __HP_cc || __HP_aCC || __IBMC__ || __IBMCPP__        \
         || __ICC || 0x5110 <= __SUNPRO_C)
 #  define _Alignas(a) __attribute__ ((__aligned__ (a)))
 # elif 1300 <= _MSC_VER