Using autoconf during package build?

[Hauke Fath <hf%spg.tu-darmstadt.de@localhost>]

All,

for a development package, I would like to run autoconf-2.13 after 
patching configure.in. The machine has

% pkg_info |grep autoconf
autoconf-2.69nb5    Generates automatic source code configuration 
scripts
autoconf213-2.13nb4 Generates automatic source code configuration 
scripts (old version)
%

The package Makefile has


HAS_CONFIGURE=      yes
USE_TOOLS+=    		autoconf-2.13

[...]

pre-configure:
		cd ${WRKSRC} && autoconf-2.13


but the buildlinked autoconf-2.13 is always

cat .tools/bin/autoconf-2.13
#!/bin/sh
wrapperlog="${TOOLS_WRAPPER_LOG-/var/obj/pkgsrc/hauke/xemacs-21_4-hg/work/.work.log}"
echo "[*] 
"/var/obj/pkgsrc/hauke/xemacs-21_4-hg/work/.tools/bin/autoconf-2.13" 
$@" >> $wrapperlog
echo "<.> /u1/pkgsrc/mk/gnu-config/missing autoconf" >> $wrapperlog
/u1/pkgsrc/mk/gnu-config/missing autoconf

-- what other levers do I need to pull?
 
Cheerio,
hauke

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