Add back target option evex512 for clang 18 to 21

At least with zig using clang 18 to 21 the target option evex512 needs to be specified. To be on the safe side this target option is added back for those clang versions.

Author: utelle

src/aegis/aegis128x4/aegis128x4_avx512.c

@@ -23,8 +23,11 @@
 #ifdef HAVE_VAESINTRIN_H
 
 #ifdef __clang__
-#  pragma clang attribute push(__attribute__((target("vaes,avx512f"))), \
-                                             apply_to = function)
+#  if __clang_major__ >= 18 && __clang_major__ < 22
+#    pragma clang attribute push(__attribute__((target("aes,vaes,avx512f,evex512"))), apply_to=function)
+#  else
+#    pragma clang attribute push(__attribute__((target("aes,vaes,avx512f"))), apply_to=function)
+#  endif
 #elif defined(__GNUC__)
 #  pragma GCC target("vaes,avx512f")
 #endif

src/aegis/aegis256x4/aegis256x4_avx512.c

@@ -23,8 +23,11 @@
 #ifdef HAVE_VAESINTRIN_H
 
 #ifdef __clang__
-#  pragma clang attribute push(__attribute__((target("vaes,avx512f"))), \
-                                             apply_to = function)
+#  if __clang_major__ >= 18 && __clang_major__ < 22
+#    pragma clang attribute push(__attribute__((target("vaes,avx512f,evex512"))), apply_to=function)
+#  else
+#    pragma clang attribute push(__attribute__((target("vaes,avx512f"))), apply_to=function)
+#  endif
 #elif defined(__GNUC__)
 #  pragma GCC target("vaes,avx512f")
 #endif