sh bootstrap warnings

Hello,

I get these on a fresh checkout:

-----------------------------8<------------------------
[serguei@ipecac pgadmin3] % sh bootstrap
+ '[' -x config ']'
+ aclocal
/usr/share/aclocal/pkg.m4:5: warning: underquoted definition of PKG_CHECK_MODULES
  run info '(automake)Extending aclocal'
  or see
http://sources.redhat.com/automake/automake.html#Extending%20aclocal
/usr/share/aclocal/libmikmod.m4:11: warning: underquoted definition of AM_PATH_LIBMIKMOD
/usr/share/aclocal/gtk.m4:7: warning: underquoted definition of AM_PATH_GTK
/usr/share/aclocal/glib.m4:8: warning: underquoted definition of AM_PATH_GLIB
...
-----------------------------8<------------------------

Does it mean the autoconf installed is slightly old?

Thanks,

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