Treat x86_64 platforms as HAVE_X86 in configure.  (The limited amount of x86 inline
assembly libsrtp uses works on both 32-bit and 64-bit x86.)
diff --git a/configure.in b/configure.in
index 8256e3a..c55d738 100644
--- a/configure.in
+++ b/configure.in
@@ -19,7 +19,7 @@
 
 dnl check host_cpu type, set defines appropriately
 case $host_cpu in
-     i*86 )
+     i*86 | x86_64 )
 	AC_DEFINE(CPU_CISC, 1,
 	   [Define if building for a CISC machine (e.g. Intel).])
         AC_DEFINE(HAVE_X86, 1,