diff --git a/tpm2.0-tools.changes b/tpm2.0-tools.changes
index 48adc72..4b50390 100644
--- a/tpm2.0-tools.changes
+++ b/tpm2.0-tools.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Jul  8 09:07:05 UTC 2021 - Matthias Gerstner <matthias.gerstner@suse.com>
+
+- prepare running the test suite via %check, but leave it commented out,
+  because it is broken due to LTO linking.
+
 -------------------------------------------------------------------
 Mon Jun 28 09:09:46 UTC 2021 - Fabian Vogt <fvogt@suse.com>
 
diff --git a/tpm2.0-tools.spec b/tpm2.0-tools.spec
index a34caf5..02523e7 100644
--- a/tpm2.0-tools.spec
+++ b/tpm2.0-tools.spec
@@ -50,6 +50,12 @@ BuildRequires:  pandoc
 BuildRequires:  pkgconfig
 BuildRequires:  tpm2-0-tss-devel
 BuildRequires:  tpm2.0-abrmd-devel
+# requirements for unit test suite (configure --enable-unit)
+BuildRequires:  expect
+BuildRequires:  ibmswtpm2
+BuildRequires:  libcmocka-devel
+BuildRequires:  python38-pyaml
+BuildRequires:  tpm2.0-abrmd
 Recommends:     tpm2.0-abrmd
 
 %description
@@ -63,7 +69,9 @@ associated interfaces.
 %autosetup -p1 -n tpm2-tools-%{version}
 
 %build
-%configure --disable-static
+# help configure find required executables for testing
+export PATH=$PATH:/usr/sbin:/usr/libexec/ibmtss
+%configure --disable-static --enable-unit
 make %{?_smp_mflags}
 
 %install
@@ -82,4 +90,9 @@ find %{buildroot} -type f -name "*.la" -delete -print
 %dir %{_datadir}/bash-completion/completions
 %{_datadir}/bash-completion/completions/*
 
+# the test suite does not currently work, because it conflicts with our LTO
+# linking (see bsc#1188085).
+#%%check
+#make check
+
 %changelog