Package: libtool,autoconf-archive Tags: upstream libtool.m4 does not work well with autoconf-archive. Specifically, LT_INIT and AX_PROG_CXX_FOR_BUILD break when used together:
$ cat configure.ac AC_INIT(foo,1,,,) LT_INIT AX_PROG_CXX_FOR_BUILD $ aclocal configure.ac:3: error: LT_LANG: unsupported language: "CXX_FOR_BUILD" /usr/share/aclocal/libtool.m4:822: LT_LANG is expanded from... /usr/share/aclocal/ax_prog_cxx_for_build.m4:37: AX_PROG_CXX_FOR_BUILD is expanded from... configure.ac:3: the top level autom4te: /usr/bin/m4 failed with exit status: 1 aclocal: error: echo failed with exit status: 1 $ The error message comes from: https://sources.debian.org/src/libtool/2.4.6-10/m4/libtool.m4/#L834 The problem can be worked around by defining _LT_LANG_CXX_FOR_BUILD_CONFIG before issuing AX_PROG_CXX_FOR_BUILD. Can you come up with a better solution? Helmut
