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--- configure.ac.orig 2016-11-09 19:40:33 UTC
+++ configure.ac
@@ -138,6 +138,17 @@ AC_ARG_ENABLE(runtime-loading,
these libraries into the binary, thus making them a
hard dependency, then disable runtime-loading.])
+dnl This changes the order of the top ciphersuites
+AC_ARG_ENABLE(prefer-chacha,
+ [ --enable-prefer-chacha Prefer ChaCha20-Poly1305 ciphersuites over
+ AES256-GCM. For processors without AES-NI or
+ similar capabilities, ChaCha20-Poly1305 is 3 times
+ faster than AES, with an equivalent strength.])
+if test "x$enable_prefer_chacha" == xyes; then
+ AC_DEFINE(SHELLINABOX_USE_CHACHA_FIRST, 1,
+ Set if you want to prefer Chacha20-Poly1305 over AES-GCM)
+fi
+
dnl This is feature is not suported in some standard C libs. So users can use
dnl this switch to avoid compile and runtime problems. Note that utmp must
dnl disabled on systems with musl libc.
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