Upstream-Issue: https://github.com/libunwind/libunwind/issues/30
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 define(pkg_major, 1)
-define(pkg_minor, 2.1)
-define(pkg_extra, )
+define(pkg_minor, 2)
+define(pkg_extra, 1)
 define(pkg_maintainer, libunwind-devel@nongnu.org)
 define(mkvers, $1.$2$3)
 dnl Process this file with autoconf to produce a configure script.