diff --git a/libdnet.changes b/libdnet.changes
index 22d5a73..afeb919 100644
--- a/libdnet.changes
+++ b/libdnet.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Aug  1 04:22:18 UTC 2018 - bwiedemann@suse.com
+
+- Add reproducible.patch to sort linked .o files
+  to make package build reproducible (boo#1041090)
+
 -------------------------------------------------------------------
 Tue Jul 25 00:45:47 UTC 2017 - jengelh@inai.de
 
diff --git a/libdnet.spec b/libdnet.spec
index c0e7c4e..dc1b81d 100644
--- a/libdnet.spec
+++ b/libdnet.spec
@@ -31,6 +31,7 @@ Patch1:         libdnet-config-multilib.patch
 # PATCH-FIX-UPSTREAM: do include string.h when needed, this is autogenerated
 # file which can't be generated with today tools :(
 Patch2:         libdnet-fortify.patch
+Patch3:         reproducible.patch
 BuildRequires:  libbsd-devel
 BuildRequires:  libtool
 BuildRequires:  python-devel
@@ -88,6 +89,7 @@ Dnet library Python 2 bindings.
 %patch0
 %patch1
 %patch2 -p1
+%patch3 -p1
 
 %build
 ACLOCAL="aclocal -I config" autoreconf -fvi
diff --git a/reproducible.patch b/reproducible.patch
new file mode 100644
index 0000000..ce60406
--- /dev/null
+++ b/reproducible.patch
@@ -0,0 +1,29 @@
+Author: Bernhard M. Wiedemann <bwiedemann suse de>
+Date: 2017-09-02
+
+https://github.com/dugsong/libdnet/pull/42
+https://bugzilla.opensuse.org/show_bug.cgi?id=1041090
+
+sort linker file list
+so that dnet.so builds in a reproducible way
+in spite of indeterministic filesystem readdir order
+and http://bugs.python.org/issue30461
+
+See https://reproducible-builds.org/ for why this is good.
+
+This allows the libdnet package in openSUSE Tumbleweed
+to produce identical rpms on different builds.
+
+Index: libdnet-libdnet-1.12/python/setup.py.in
+===================================================================
+--- libdnet-libdnet-1.12.orig/python/setup.py.in
++++ libdnet-libdnet-1.12/python/setup.py.in
+@@ -20,7 +20,7 @@ else:
+     # XXX - can't build on Cygwin+MinGW yet.
+     #if sys.platform == 'cygwin':
+     #    dnet_extargs.append('-mno-cygwin')
+-    dnet_extobj.extend(glob.glob('@top_builddir@/src/.libs/*.o'))
++    dnet_extobj.extend(sorted(glob.glob('@top_builddir@/src/.libs/*.o')))
+ 
+ dnet = Extension('dnet',
+                  dnet_srcs,