Skip tests on armv7, mke2fs is broken there.

supermin.spec

@@ -20,6 +20,10 @@
 %bcond_with dietlibc
 %endif
 
+# Architectures that cannot run the tests.
+# armv7: https://bugzilla.redhat.com/show_bug.cgi?id=1733743
+%global no_test_arches %{arm}
+
 # Whether we should verify tarball signature with GPGv2.
 %global verify_tarball_signature 1
 
@@ -146,6 +150,7 @@ install -m 0755 %{SOURCE4} $RPM_BUILD_ROOT%{_rpmconfigdir}/
 
 
 %check
+%ifnarch %{no_test_arches}
 
 # Skip execstack test where it is known to fail.
 %if 0%{?fedora} <= 20
@@ -159,6 +164,7 @@ make check || {
     exit 1
 }
 
+%endif
 
 %files
 %doc COPYING README examples/build-basic-vm.sh