Update version to 3.4.3
diff --git a/configure.ac b/configure.ac
index fba64d5..ed394c9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ dnl Process this with autoconf to create configure
AC_PREREQ([2.71])
-AC_INIT([libffi],[3.4.2],[http://github.com/libffi/libffi/issues])
+AC_INIT([libffi],[3.4.3],[http://github.com/libffi/libffi/issues])
AC_CONFIG_HEADERS([fficonfig.h])
AC_CANONICAL_TARGET