mac_package.py + debug message

devtools/deploy/mac/mac_package.py.in

@@ -867,6 +867,7 @@ for dst, lib in pkg.dst_tbl.items():
 #-- apply RPATHs
 print("\n%s: Add proper RPATHs to the binaries..." % TITLE)
 for lib in pkg.dst_tbl.values():
+    print(f"... lib {lib} has rpaths {lib.rpaths}.")
     # eg. RPATHS for 'lib/libA.dylib': ../Library , ../Frameworks/Qt
     # eg. install_name_tool libA.so -add_rpath RPATH1 -add_rpath RPATH2 ...
     _cmd_list = []