Upgrade version to 3.1-rc1
diff --git a/configure.ac b/configure.ac
index 00b4317..3c1632c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ dnl Process this with autoconf to create configure
AC_PREREQ(2.68)
-AC_INIT([libffi], [3.1-rc0], [http://github.com/atgreen/libffi/issues])
+AC_INIT([libffi], [3.1-rc1], [http://github.com/atgreen/libffi/issues])
AC_CONFIG_HEADERS([fficonfig.h])
AC_CANONICAL_SYSTEM