From: Rudolf Polzer <divverent@alientrap.org>
Date: Tue, 7 Sep 2010 17:47:41 +0000 (+0200)
Subject: work around missing BN_*_negative on Crap OS X
X-Git-Tag: xonotic-v0.1.0preview~13
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=a0b5239a7c040e5694b62993ee09d3bfbc589b03;p=xonotic%2Fd0_blind_id.git

work around missing BN_*_negative on Crap OS X
---

diff --git a/d0_bignum-openssl.c b/d0_bignum-openssl.c
index b4fc873..ef7985a 100644
--- a/d0_bignum-openssl.c
+++ b/d0_bignum-openssl.c
@@ -46,6 +46,14 @@
 #include <string.h>
 #include <openssl/bn.h>
 
+// for stupid OpenSSL versions in Mac OS X
+#ifndef BN_is_negative
+#define BN_is_negative(a) ((a)->neg != 0)
+#endif
+#ifndef BN_set_negative
+#define BN_set_negative(a,n) ((a)->neg = ((n) && !BN_is_zero(b)))
+#endif
+
 struct d0_bignum_s
 {
 	BIGNUM z;