Add LANG=C for not to get automake missing
  +# LANG other than C may give (false) automake missing due to Language
  +# related warning.
   pre-configure:
  -       (cd ${WRKSRC}; ./autogen.sh)
  +       (cd ${WRKSRC}; env LANG=C ./autogen.sh)
Add Debug flag (only for wip :-)
  +# For wip special, following gives symbol names when back trace is shown.
  +CFLAGS+=               -g
Fix typo
  -AUTOCONF_REQUIRED=     2.65
  +AUTOCONF_REQD= 2.65

  -# Comment out for debug.
  +# Uncomment for debug.
run autogen.sh with same condition as configure.