commit 57291a7019b401232e408556bb626ef0cb0ba2cb
author Manuel Pégourié-Gonnard <mpg@elzevir.fr> Fri Mar 14 09:21:20 2014 +0100
committer Paul Bakker <p.j.bakker@polarssl.org> Tue Jul 08 11:13:42 2014 +0200
tree ef672a01a92fcfac2e7f4a0832f2c16d9dcfe148
parent 516eb623df23607d807aac112fdabf498e2af2a8

Work around a compiler bug on OS X.

library/bignum.c

diff --git a/library/bignum.c b/library/bignum.c
index 5460290..0d13cd8 100644
--- a/library/bignum.c
+++ b/library/bignum.c
@@ -1114,7 +1114,14 @@
             Z.p[i - t - 1] = ~0;
         else
         {
-#if defined(POLARSSL_HAVE_UDBL)
+            /*
+             * The version of Clang shipped by Apple with Mavericks can't
+             * handle 128-bit division properly. Disable 128-bits division
+             * for Clang on Apple for now, while waiting for more input on the
+             * exact version(s) affected and their identification macros.
+             */
+#if defined(POLARSSL_HAVE_UDBL) && \
+    ! ( defined(__x86_64__) && defined(__clang__) && defined(__APPLE__) )
             t_udbl r;
 
             r  = (t_udbl) X.p[i] << biL;