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Condition out AES-NI support if using a too-old clang.

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A clang too old to have __attribute__((target)) will not manage to
compile the clang-style hardware-accelerated functions, so it
shouldn't try.
This commit is contained in:
Simon Tatham 2017-12-20 10:12:28 +00:00
parent 8ec55ef25f
commit 599bab84a1
1 changed files with 8 additions and 0 deletions
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8
sshaes.c
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@ -1151,6 +1151,14 @@ const struct ssh2_ciphers ssh2_aes = {
# undef COMPILER_SUPPORTS_AES_NI # undef COMPILER_SUPPORTS_AES_NI
#endif #endif
#if defined(__clang__)
# if !__has_attribute(target)
/* If clang is old enough not to support __attribute__((target(...)))
* as used below, then we can't use this code after all. */
# undef COMPILER_SUPPORTS_AES_NI
# endif
#endif
#ifdef COMPILER_SUPPORTS_AES_NI #ifdef COMPILER_SUPPORTS_AES_NI
/* /*