aclocal 1.9.5 is generating the following warning for libglade 0.17-r6: /usr/share/aclocal/libglade.m4:7: warning: underquoted definition of AM_PATH_LIBGLADE
Created attachment 58584 [details, diff] patch fixes the warning
These are harmless warnings for unmaintained old versions and patching would just be a lot of effort for no gain.