diff --git a/lalapps-disable-testWeave-for-non-x86_64.patch b/lalapps-disable-testWeave-for-non-x86_64.patch
new file mode 100644
index 0000000..5f8dde4
--- /dev/null
+++ b/lalapps-disable-testWeave-for-non-x86_64.patch
@@ -0,0 +1,33 @@
+Index: lalapps-7.2.0/src/pulsar/Weave/Makefile.am
+===================================================================
+--- lalapps-7.2.0.orig/src/pulsar/Weave/Makefile.am
++++ lalapps-7.2.0/src/pulsar/Weave/Makefile.am
+@@ -75,5 +75,10 @@ if !CFITSIO
+ skip_tests += $(test_scripts)
+ endif
+ 
++# Skip Weave tests on non-x86_64
++if SKIP_WEAVE_TESTS
++skip_tests += $(test_scripts)
++endif
++
+ # testWeave_reference_results.sh requires output from tests that compare against reference results
+ testWeave_reference_results.log: testWeave_interpolating.log testWeave_non_interpolating.log testWeave_single_segment.log
+Index: lalapps-7.2.0/configure.ac
+===================================================================
+--- lalapps-7.2.0.orig/configure.ac
++++ lalapps-7.2.0/configure.ac
+@@ -318,6 +318,13 @@ AM_CPPFLAGS="-I\$(top_srcdir)/src ${AM_C
+ # RedHat-derived systems.
+ AC_SUBST([pkgpythondir], ["\${pkgpyexecdir}"])
+ 
++# testWeave_* results have tolerance issues that show up in some archs, use only for x86_64
++# See https://git.ligo.org/lscsoft/lalsuite/-/issues/105
++AC_MSG_CHECKING([if arch is non-x86_64 so weave tests should be disabled])
++AC_DEFINE([SKIP_WEAVE_TESTS], [0], [Set to 1 for non-x86_64 architectures])
++AS_IF([test x"$(arch)" != "xx86_64"], AC_MSG_RESULT([yes]), AC_MSG_RESULT([no]))
++AM_CONDITIONAL([SKIP_WEAVE_TESTS], [test x"$(arch)" != "xx86_64"])
++
+ # output
+ AC_OUTPUT
+ AC_MSG_NOTICE([
diff --git a/lalapps.changes b/lalapps.changes
index 3d199cf..81bf599 100644
--- a/lalapps.changes
+++ b/lalapps.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Mon Sep 13 13:58:08 UTC 2021 - Atri Bhattacharya <badshah400@gmail.com>
+
+- Add lalapps-disable-testWeave-for-non-x86_64.patch: Disable
+  Weave related tests on all but x86_64 where tolerance errors
+  show up, see https://git.ligo.org/lscsoft/lalsuite/-/issues/105,
+  boo#1189928; introduces BuildRequires: libtool and requires
+  running autoreconf before configure.
+
 -------------------------------------------------------------------
 Tue Jun  8 20:51:27 UTC 2021 - Atri Bhattacharya <badshah400@gmail.com>
 
diff --git a/lalapps.spec b/lalapps.spec
index 3f2edfd..2f5dbf5 100644
--- a/lalapps.spec
+++ b/lalapps.spec
@@ -31,6 +31,8 @@ Source:         http://software.ligo.org/lscsoft/source/lalsuite/%{name}-%{versi
 Patch0:         lalapps-fix-uninitialised-var.patch
 # PATCH-FIX-UPSTREAM lalapps-gcc11-array-bounds-decl.patch badshah400@gmail.com -- Fix building with gcc 11 by correcting array bounds declaration; patch part of upstream merge request [https://git.ligo.org/lscsoft/lalsuite/-/merge_requests/1605]
 Patch1:         lalapps-gcc11-array-bounds-decl.patch
+# PATCH-FIX-UPSTREAM lalapps-disable-testWeave-for-non-x86_64.patch badshah400@gmail.com -- Disable Weave related tests on all but x86_64 where tolerance errors show up, see https://git.ligo.org/lscsoft/lalsuite/-/issues/105
+Patch2:         lalapps-disable-testWeave-for-non-x86_64.patch
 BuildRequires:  %{python_module astropy}
 BuildRequires:  %{python_module devel}
 BuildRequires:  %{python_module glue}
@@ -67,6 +69,9 @@ BuildRequires:  bc
 BuildRequires:  lalpulsar-data
 Requires:       python3-%{name} = %{version}
 # /SECTION
+# SECTION Required for Patch2
+BuildRequires:  libtool
+# /SECTION
 # 32-bit no longer supported upstream
 ExcludeArch:    %{ix86}
 %define python_subpackage_only 1
@@ -110,6 +115,8 @@ sed -Ei "1{s|/usr/bin/env python|%{_bindir}/python3|}" \
   src/pulsar/HeterodyneSearch/make_frame_cache
 
 %build
+# Patch2 touches autotool files
+autoreconf -fvi
 %{python_expand # Necessary to run %%configure for all active python flavors
 export PYTHON=%{_bindir}/$python
 mkdir ../$python
@@ -117,7 +124,6 @@ cp -pr ./ ../$python
 pushd ../$python
 # FIXME: Failures because XLAL_ERROR implictly converts to function return type
 export CFLAGS+=" -Wno-enum-conversion"
-%configure \
 %configure --enable-swig
 %make_build
 popd