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@@ -706,7 +706,7 @@ if test x$enable_curve25519 != xno; then
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AC_CHECK_HEADERS([crypto_scalarmult_curve25519.h \
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nacl/crypto_scalarmult_curve25519.h])
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- AC_CACHE_CHECK([whether we can use curve25519 from nacl],
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+ AC_CACHE_CHECK([for nacl compiled with a fast curve25519 implementation],
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tor_cv_can_use_curve25519_nacl,
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[tor_saved_LIBS="$LIBS"
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LIBS="$LIBS -lnacl"
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@@ -718,7 +718,7 @@ if test x$enable_curve25519 != xno; then
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#include <nacl/crypto_scalarmult_curve25519.h>
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#endif
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#ifdef crypto_scalarmult_curve25519_ref_BYTES
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- #error Hey, this is the reference implementation!
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+ #error Hey, this is the reference implementation! That's not fast.
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#endif
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], [
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unsigned char *a, *b, *c; crypto_scalarmult_curve25519(a,b,c);
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