diff --git a/barrier.h-add-generic-smp_mb-implementation.patch b/barrier.h-add-generic-smp_mb-implementation.patch
new file mode 100644
index 0000000..b8ad1ef
--- /dev/null
+++ b/barrier.h-add-generic-smp_mb-implementation.patch
@@ -0,0 +1,28 @@
+From ba97eaf8f9ef2030d581be10df9d875dbfadc91d Mon Sep 17 00:00:00 2001
+From: Jeff Moyer <jmoyer@redhat.com>
+Date: Tue, 5 Nov 2019 10:33:19 -0500
+Subject: barrier.h: add generic smp_mb implementation
+References: bsc#1159055
+Patch-mainline: Queued
+
+This missing define causes build failures on s390:
+
+  src/include/liburing.h:298: undefined reference to `io_uring_smp_mb'
+
+Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
+Signed-off-by: Jens Axboe <axboe@kernel.dk>
+Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
+---
+ src/include/liburing/barrier.h |    1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/src/include/liburing/barrier.h
++++ b/src/include/liburing/barrier.h
+@@ -76,6 +76,7 @@ do {						\
+  * Add arch appropriate definitions. Be safe and use full barriers for
+  * archs we don't have support for.
+  */
++#define io_uring_smp_mb()	__sync_synchronize()
+ #define io_uring_smp_rmb()	__sync_synchronize()
+ #define io_uring_smp_wmb()	__sync_synchronize()
+ #endif /* defined(__x86_64__) || defined(__i386__) */
diff --git a/liburing.changes b/liburing.changes
index 752dd95..c048961 100644
--- a/liburing.changes
+++ b/liburing.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Dec 12 09:20:32 UTC 2019 - Johannes Thumshirn <jthumshirn@suse.com>
+
+- Fix builds on ppc64le and s390x (bsc#1159055)
+  + barrier.h-add-generic-smp_mb-implementation.patch
+
 -------------------------------------------------------------------
 Wed Nov 27 08:18:20 UTC 2019 - Johannes Thumshirn <jthumshirn@suse.com>
 
diff --git a/liburing.spec b/liburing.spec
index 66b1627..7b0fdb6 100644
--- a/liburing.spec
+++ b/liburing.spec
@@ -23,9 +23,11 @@ Version:        0.2
 Release:        0
 Summary:        Linux-native io_uring I/O access library
 License:        LGPL-2.1-or-later
+Group:          Development/Libraries/C and C++
 URL:            https://git.kernel.dk/cgit/liburing
 Source:         https://git.kernel.dk/cgit/liburing/snapshot/%{name}-%{version}.tar.gz
 Requires:       kernel-default >= 5.1
+Patch0:         barrier.h-add-generic-smp_mb-implementation.patch
 
 %description
 Provides native async IO for the Linux kernel, in a fast and efficient
@@ -41,6 +43,7 @@ manner, for both buffered and O_DIRECT.
 
 %package devel
 Summary:        Development files for Linux-native io_uring I/O access library
+Group:          Development/Libraries/C and C++
 Requires:       %{name}%{so_ver} = %{version}
 Requires:       pkgconfig
 
@@ -49,7 +52,8 @@ This package provides header files to include and libraries to link with
 for the Linux-native io_uring.
 
 %prep
-%autosetup
+%setup -n %name-%version
+%patch0 -p1
 
 %build
 ./configure --prefix=%{_prefix} --libdir=/%{_libdir} --mandir=%{_mandir} --includedir=%{_includedir}