diff --git a/ucx-config.patch b/ucx-config.patch
new file mode 100644
index 0000000..1b9e5fc
--- /dev/null
+++ b/ucx-config.patch
@@ -0,0 +1,26 @@
+diff --git a/config/m4/sysdep.m4 b/config/m4/sysdep.m4
+index b1e5485..0133803 100644
+--- a/config/m4/sysdep.m4
++++ b/config/m4/sysdep.m4
+@@ -158,7 +158,7 @@ AC_MSG_CHECKING([malloc hooks])
+ SAVE_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS $CFLAGS_NO_DEPRECATED"
+ CHECK_CROSS_COMP([AC_LANG_SOURCE([#include <malloc.h>
+-                                  static int rc = 1;
++                                  static volatile int rc = 1;
+                                   void *ptr;
+                                   void *myhook(size_t size, const void *caller) {
+                                       rc = 0;
+diff --git a/configure b/configure
+index db54a6a..fa4352d 100755
+--- a/configure
++++ b/configure
+@@ -22221,7 +22221,7 @@ CFLAGS="$CFLAGS $CFLAGS_NO_DEPRECATED"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ #include <malloc.h>
+-                                  static int rc = 1;
++                                  volatile static int rc = 1;
+                                   void *ptr;
+                                   void *myhook(size_t size, const void *caller) {
+                                       rc = 0;
diff --git a/ucx.spec b/ucx.spec
index 4bb0e28..08ede1d 100644
--- a/ucx.spec
+++ b/ucx.spec
@@ -16,12 +16,13 @@
 
 Name: ucx
 Version: 1.8.1
-Release: 1%{?dist}
+Release: 2%{?dist}
 Summary: UCX is a communication library implementing high-performance messaging
 
 License: BSD
 URL: http://www.openucx.org
 Source: https://github.com/openucx/%{name}/releases/download/v1.8.1/ucx-1.8.1.tar.gz
+Patch:  ucx-config.patch
 
 BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)
 
@@ -87,6 +88,7 @@ Provides header files and examples for developing with UCX.
 
 %prep
 %setup -q
+%patch -p1
 
 %build
 %define _with_arg()   %{expand:%%{?with_%{1}:--with-%{2}}%%{!?with_%{1}:--without-%{2}}}
@@ -287,6 +289,9 @@ process to map the memory of another process into its virtual address space.
 
 
 %changelog
+* Mon Jul 20 2020 Jeff Law <law@redhat.com> 1.8.1-2
+- Fix broken configure files compromised by LTO
+
 * Wed Jul 1 2020 Yossi Itigin <yosefe@mellanox.com> 1.8.1-1
 - Bump version to 1.8.1
 * Sun Sep 22 2019 Yossi Itigin <yosefe@mellanox.com> 1.8.0-1