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Add note about other package flags

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Olivier Chéron 2020-06-28 08:49:28 +02:00
parent 0254f16e83
commit 63d427ee77
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README.md
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@ -52,6 +52,10 @@ On OSX <= 10.7, the system compiler doesn't understand the '-maes' option, and
with the lack of autodetection feature builtin in .cabal file, it is left on
the user to disable the aesni. See the [Disabling AESNI] section
On CentOS 7 the default C compiler includes intrinsic header files incompatible
with per-function target options. Solutions are to use GCC >= 4.9 or disable
flag *use_target_attributes* (see flag configuration examples below).
Disabling AESNI
---------------
@ -72,6 +76,13 @@ or as part of an installation:
For help with cabal flags, see: [stackoverflow : is there a way to define flags for cabal](http://stackoverflow.com/questions/23523869/is-there-any-way-to-define-flags-for-cabal-dependencies)
Enabling PCLMULDQ
-----------------
When the C toolchain supports it, enabling flag *support_pclmuldq* can bring
additional security and performance for AES GCM. A CPU with the necessary
instruction set will use an alternate implementation selected at runtime.
Links
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