modules/rpm: own directories for subdirs in headers

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>

modules/rpm.py

@@ -63,9 +63,11 @@ class RPMModule:
                 mlog.log('Warning, removing', mlog.bold(target.get_filename()),
                          'from package because packaging static libs not recommended')
         for header in state.headers:
-            for hdr_src in header.get_sources():
-                files_devel.append('%%{_includedir}/%s' % os.path.join(
-                        header.get_install_subdir(), hdr_src))
+            if len(header.get_install_subdir()) > 0:
+                files_devel.append('%%{_includedir}/%s/' % header.get_install_subdir())
+            else:
+                for hdr_src in header.get_sources():
+                    files_devel.append('%%{_includedir}/%s' % hdr_src)
         if len(files_devel) > 0:
             devel_subpkg = True
         fn = open('%s.spec' % os.path.join(state.environment.get_build_dir(), proj),