progs: autoconf fails during debian package builds

For some reason, a current debian testing build system will fail to
build debian packages because the build environment is not correctly
detecting that libtoolize needs the "-i" parameter to copy in the
files needed by autoconf.

My build scripts run "make -j 16 realclean; make -j 16 deb", and the
second step is failing immediately with:

libtoolize -c `libtoolize -n -i >/dev/null 2>/dev/null && echo -i` -f
libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, '.'.
libtoolize: copying file './'
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
libtoolize: copying file 'm4/libtool.m4'
libtoolize: copying file 'm4/ltoptions.m4'
libtoolize: copying file 'm4/ltsugar.m4'
libtoolize: copying file 'm4/ltversion.m4'
libtoolize: copying file 'm4/lt~obsolete.m4'
libtoolize: Consider adding '-I m4' to ACLOCAL_AMFLAGS in
cp include/install-sh .
aclocal -I m4
configure: error: cannot find required auxiliary files: config.guess config.sub
make: *** [Makefile:131: include/builddefs] Error 1

If I run 'make realclean; make deb' from the command line, the
package build runs to completion.  I have not been able to work out
why the initial build fails, but then succeeds after a 'make
realclean' has been run, and I don't feel like spending hours
running down this rabbit hole.

This conditional "-i" flag detection was added back in *2009* when
default libtoolize behaviour was changed to not copy the config
files into the build area, and the "-i" flag was added to provide
that behaviour. It is detecting that the "-i" flag is needed that is
now failing, but it is most definitely still needed.

Rather than ispending lots of time trying to understand this and
then making the detection more complex, just use the "-i" flag
unconditionally and require any userspace that this now breaks on to
upgrade their 15+ year old version of libtoolize something a little
more modern.

Signed-off-by: Dave Chinner <>
Reviewed-by: Carlos Maiolino <>
Signed-off-by: Carlos Maiolino <>
1 file changed