fix libsepol version detection for SUSE

support-files/CMakeLists.txt

@@ -87,8 +87,9 @@ IF(UNIX)
         INSTALL(FILES ${out} DESTINATION ${inst_location}/policy/selinux COMPONENT SupportFiles)
       ENDFOREACH()
       IF(RPM)
-        EXECUTE_PROCESS(COMMAND rpm -q --qf "%{VERSION}-%{RELEASE}" libsepol OUTPUT_VARIABLE LIBSEPOL_VERSION)
-        IF (LIBSEPOL_VERSION)
+        EXECUTE_PROCESS(COMMAND rpm -q --qf "%{VERSION}-%{RELEASE}" libsepol
+                        OUTPUT_VARIABLE LIBSEPOL_VERSION RESULT_VARIABLE err)
+        IF (NOT err)
           SET(CPACK_RPM_server_PACKAGE_REQUIRES
             "${CPACK_RPM_server_PACKAGE_REQUIRES} libsepol >= ${LIBSEPOL_VERSION}"
             PARENT_SCOPE)