***** aclocal *****
***** PWD: /var/tmp/portage/dev-lang/ruby-1.9.1_p429/work/ruby-1.9.1-p429
***** aclocal

/usr/share/aclocal/gtkglextmm-1.2.m4:225: warning: underquoted definition of AC_GTKGLEXTMM_SUPPORTS_MULTIHEAD
/usr/share/aclocal/gtkglextmm-1.2.m4:225:   run info '(automake)Extending aclocal'
/usr/share/aclocal/gtkglextmm-1.2.m4:225:   or see http://sources.redhat.com/automake/automake.html#Extending-aclocal
configure.in:300: error: AC_CHECK_SIZEOF: requires literal arguments
../../lib/autoconf/types.m4:765: AC_CHECK_SIZEOF is expanded from...
configure.in:300: the top level
autom4te-2.66: /usr/bin/m4 failed with exit status: 1
aclocal-1.10: autom4te failed with exit status: 1