diff --git a/libatomic_ops-7.4.2-no_undefined.patch b/libatomic_ops-7.4.2-no_undefined.patch
new file mode 100644
index 0000000..9807396
--- /dev/null
+++ b/libatomic_ops-7.4.2-no_undefined.patch
@@ -0,0 +1,23 @@
+diff -up libatomic_ops-7.4.2/src/Makefile.am.no_undefined libatomic_ops-7.4.2/src/Makefile.am
+--- libatomic_ops-7.4.2/src/Makefile.am.no_undefined	2014-05-02 10:52:15.000000000 -0500
++++ libatomic_ops-7.4.2/src/Makefile.am	2014-05-13 18:51:29.620033510 -0500
+@@ -12,6 +12,7 @@ libatomic_ops_la_LDFLAGS = -version-info
+ 
+ libatomic_ops_gpl_la_SOURCES = atomic_ops_stack.c atomic_ops_malloc.c
+ libatomic_ops_gpl_la_LDFLAGS = -version-info 1:3:0 -no-undefined
++libatomic_ops_gpl_la_LIBADD = libatomic_ops.la 
+ 
+ EXTRA_DIST = Makefile.msft atomic_ops/sysdeps/README \
+         atomic_ops/generalize-arithm.template \
+diff -up libatomic_ops-7.4.2/src/Makefile.in.no_undefined libatomic_ops-7.4.2/src/Makefile.in
+--- libatomic_ops-7.4.2/src/Makefile.in.no_undefined	2014-05-02 10:56:32.000000000 -0500
++++ libatomic_ops-7.4.2/src/Makefile.in	2014-05-13 18:51:55.352602385 -0500
+@@ -139,7 +139,7 @@ libatomic_ops_la_LINK = $(LIBTOOL) $(AM_
+ 	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
+ 	$(AM_CFLAGS) $(CFLAGS) $(libatomic_ops_la_LDFLAGS) $(LDFLAGS) \
+ 	-o $@
+-libatomic_ops_gpl_la_LIBADD =
++libatomic_ops_gpl_la_LIBADD = libatomic_ops.la
+ am_libatomic_ops_gpl_la_OBJECTS = atomic_ops_stack.lo \
+ 	atomic_ops_malloc.lo
+ libatomic_ops_gpl_la_OBJECTS = $(am_libatomic_ops_gpl_la_OBJECTS)
diff --git a/libatomic_ops.spec b/libatomic_ops.spec
index 3fdcdf1..0deb8c5 100644
--- a/libatomic_ops.spec
+++ b/libatomic_ops.spec
@@ -2,7 +2,7 @@
 Name:    libatomic_ops
 Summary: Atomic memory update operations
 Version: 7.4.2
-Release: 1%{?dist}
+Release: 2%{?dist}
 
 # libatomic_ops MIT, libatomic_ops_gpl GPLv2
 License: GPLv2 and MIT
@@ -12,6 +12,13 @@ Source0: http://www.ivmaisoft.com/_bin/atomic_ops/libatomic_ops-%{version}.tar.g
 # updated GPLv2 license text
 Source1: http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
 
+## upstreamable patches
+# link libatomic_ops_gpl against libatomic_ops for missing symbol(s)
+Patch50: libatomic_ops-7.4.2-no_undefined.patch
+
+# re-autofoo for patch50
+BuildRequires: automake libtool
+
 %description
 Provides implementations for atomic memory update operations on a
 number of architectures. This allows direct use of these in reasonably
@@ -35,6 +42,11 @@ Files for developing with %{name} and linking statically.
 %prep
 %setup -q
 
+%patch50 -p1 -b .no_undefined
+
+# patch50 introduces rpath (probably due to older libtool), refresh stuff here
+autoreconf -fi
+
 install -m644 -p %{SOURCE1} ./COPYING
 
 
@@ -87,6 +99,9 @@ make check %{?arch_ignore}
 
 
 %changelog
+* Tue May 13 2014 Rex Dieter <rdieter@fedoraproject.org> 7.4.2-2
+- link libatomic_ops_gpl against libatomic_ops for missing symbol(s)
+
 * Tue May 13 2014 Rex Dieter <rdieter@fedoraproject.org> 7.4.2-1
 - libatomic_opts-7.4.2
 - new upstream/source URLs