Fix tests on aarch64 and check signature during prep state

$ fedpkg prep

This will check the signature is valid.

libldb.spec

@@ -25,7 +25,7 @@
 
 Name: libldb
 Version: 2.3.0
-Release: 1%{?dist}
+Release: 2%{?dist}
 Summary: A schema-less, ldap like, API and database
 Requires: libtalloc%{?_isa} >= %{talloc_version}
 Requires: libtdb%{?_isa} >= %{tdb_version}
@@ -36,9 +36,14 @@ Source0: https://www.samba.org/ftp/ldb/ldb-%{version}.tar.gz
 Source1: https://www.samba.org/ftp/ldb/ldb-%{version}.tar.asc
 # gpg2 --no-default-keyring --keyring ./ldb.keyring --recv-keys 9147A339719518EE9011BCB54793916113084025
 Source2: ldb.keyring
+# binary diffs are not supported
+# https://gitlab.com/samba-team/samba/-/merge_requests/1920
+Source3: fixed-guidindexpackv1.ldb
 
 # Patches
 Patch0001: 0001-PATCH-wafsamba-Fix-few-SyntaxWarnings-caused-by-regu.patch
+# https://gitlab.com/samba-team/samba/-/merge_requests/1920
+Patch0002: ldb-2.3.0-fix-tests-on-aarch64.patch
 
 BuildRequires: gcc
 BuildRequires: libtalloc-devel >= %{talloc_version}
@@ -124,11 +129,13 @@ Development files for the Python bindings for the LDB library
 %endif
 
 %prep
+zcat %{SOURCE0} | gpgv2 --quiet --keyring %{SOURCE2} %{SOURCE1} -
 %autosetup -n ldb-%{version} -p1
 
-%build
-zcat %{SOURCE0} | gpgv2 --quiet --keyring %{SOURCE2} %{SOURCE1} -
+# binary diffs are not supported
+cp -f %{SOURCE3} tests/guidindexpackv1.ldb
 
+%build
 # workaround for https://bugzilla.redhat.com/show_bug.cgi?id=1217376
 export python_LDFLAGS=""
 
@@ -223,6 +230,10 @@ rm -f $RPM_BUILD_ROOT/%{_mandir}/man3/_*
 %endif
 
 %changelog
+* Thu May 20 2021 Andreas Schneider <asn@redhat.com> - 2.3.0-2
+- Fix tests on aarch64
+- Verify signature in prep state
+
 * Wed Mar 24 2021 Lukas Slebodnik <lslebodn@fedoraproject.org> - 2.3.0-1
 - libldb-2.3.0 is required for new samba