Add error message for old armclang
when armclang<6.10, cpu modifiers MUST be
specified on command line.
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/sha512.c b/library/sha512.c
index 680d79d..5ed920b 100644
--- a/library/sha512.c
+++ b/library/sha512.c
@@ -84,9 +84,12 @@
# if defined(__ARMCOMPILER_VERSION)
# if __ARMCOMPILER_VERSION < 6090000
# error "A more recent armclang is required for MBEDTLS_SHA512_USE_A64_CRYPTO_*"
-# endif
+# elif __ARMCOMPILER_VERSION == 6090000
+# error "Must use minimum -march=armv8.2-a+sha3 for MBEDTLS_SHA512_USE_A64_CRYPTO_*"
+# else
# pragma clang attribute push (__attribute__((target("sha3"))), apply_to=function)
# define MBEDTLS_POP_TARGET_PRAGMA
+# endif
# elif defined(__clang__)
# if __clang_major__ < 7
# error "A more recent Clang is required for MBEDTLS_SHA512_USE_A64_CRYPTO_*"