upstream commit

Declare ge25519_base as extern, to prevent it from
 becoming a common. Gets us rid of ``lignment 4 of symbol
 `crypto_sign_ed25519_ref_ge25519_base' in mod_ge25519.o is smaller than 16 in
 mod_ed25519.o'' warnings at link time.
diff --git a/ge25519.h b/ge25519.h
index 64f63c6..a097637 100644
--- a/ge25519.h
+++ b/ge25519.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: ge25519.h,v 1.3 2013/12/09 11:03:45 markus Exp $ */
+/* $OpenBSD: ge25519.h,v 1.4 2015/02/16 18:26:26 miod Exp $ */
 
 /*
  * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange,
@@ -28,7 +28,7 @@
   fe25519 t;
 } ge25519;
 
-const ge25519 ge25519_base;
+extern const ge25519 ge25519_base;
 
 int ge25519_unpackneg_vartime(ge25519 *r, const unsigned char p[32]);