Bug#978852: libidn: ftbfs with autoconf 2.70

[Matthias Klose]

Package: src:libidn
Version: 1.33-2.4
Severity: normal
Tags: sid bookworm
User: doko@debian.org
Usertags: ftbfs-ac270

[This bug report is not targeted to the upcoming bullseye release]

The package fails to build in a test rebuild on at least amd64 with
autoconf 2.70, but succeeds to build with autoconf 2.69. The
severity of this report will be raised before the bookworm release,
so nothing has to be done for the bullseye release.

The full build log can be found at:
http://qa-logs.debian.net/2020/09/26.ac270/libidn_1.33-2.4_unstable_ac270.log
The last lines of the build log are at the end of this report.

To build with autoconf 2.70, please install the autoconf package from
experimental:  apt-get -t=experimental install autoconf 

[...]
configure.ac:94: You should run autoupdate.
./lib/autoconf/lang.m4:135: AC_LANG_RESTORE is expanded from...
m4/libtool.m4:7445: _LT_LANG_GCJ_CONFIG is expanded from...
m4/libtool.m4:819: _LT_LANG is expanded from...
m4/libtool.m4:801: LT_LANG is expanded from...
configure.ac:94: the top level
configure.ac:37: warning: The macro `AC_GNU_SOURCE' is obsolete.
configure.ac:37: You should run autoupdate.
./lib/autoconf/specific.m4:312: AC_GNU_SOURCE is expanded from...
gl/m4/gnulib-comp.m4:34: gl_EARLY is expanded from...
configure.ac:37: the top level
configure.ac:37: warning: The macro `AC_PROG_CC_STDC' is obsolete.
configure.ac:37: You should run autoupdate.
./lib/autoconf/c.m4:1483: AC_PROG_CC_STDC is expanded from...
gl/m4/gnulib-common.m4:239: gl_PROG_CC_C99 is expanded from...
gl/m4/gnulib-comp.m4:34: gl_EARLY is expanded from...
configure.ac:37: the top level
configure.ac:38: warning: The macro `AC_HELP_STRING' is obsolete.
configure.ac:38: You should run autoupdate.
./lib/autoconf/general.m4:203: AC_HELP_STRING is expanded from...
m4/threadlib.m4:36: gl_THREADLIB_EARLY_BODY is expanded from...
m4/threadlib.m4:29: gl_THREADLIB_EARLY is expanded from...
lib/gl/m4/gnulib-comp.m4:34: lgl_EARLY is expanded from...
configure.ac:38: the top level
configure.ac:69: warning: The macro `AC_HEADER_STDC' is obsolete.
configure.ac:69: You should run autoupdate.
./lib/autoconf/headers.m4:657: AC_HEADER_STDC is expanded from...
configure.ac:69: the top level
configure.ac:72: warning: $as_echo_n is obsolete; use AS_ECHO_N(["message"]) 
instead
gl/m4/gnulib-common.m4:396: gl_CACHE_VAL_SILENT is expanded from...
gl/m4/stdarg.m4:10: gl_STDARG_H is expanded from...
gl/m4/gnulib-comp.m4:183: gl_INIT is expanded from...
configure.ac:72: the top level
configure.ac:79: warning: The macro `AC_HELP_STRING' is obsolete.
configure.ac:79: You should run autoupdate.
./lib/autoconf/general.m4:203: AC_HELP_STRING is expanded from...
configure.ac:79: the top level
configure.ac:92: warning: The macro `AC_HELP_STRING' is obsolete.
configure.ac:92: You should run autoupdate.
./lib/autoconf/general.m4:203: AC_HELP_STRING is expanded from...
configure.ac:92: the top level
configure.ac:94: warning: The macro `AC_LANG_SAVE' is obsolete.
configure.ac:94: You should run autoupdate.
./lib/autoconf/lang.m4:126: AC_LANG_SAVE is expanded from...
m4/libtool.m4:7445: _LT_LANG_GCJ_CONFIG is expanded from...
m4/libtool.m4:819: _LT_LANG is expanded from...
m4/libtool.m4:801: LT_LANG is expanded from...
configure.ac:94: the top level
configure.ac:94: warning: The macro `AC_LANG_RESTORE' is obsolete.
configure.ac:94: You should run autoupdate.
./lib/autoconf/lang.m4:135: AC_LANG_RESTORE is expanded from...
m4/libtool.m4:7445: _LT_LANG_GCJ_CONFIG is expanded from...
m4/libtool.m4:819: _LT_LANG is expanded from...
m4/libtool.m4:801: LT_LANG is expanded from...
configure.ac:94: the top level
libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, 'build-aux'.
libtoolize: copying file 'build-aux/ltmain.sh'
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'
Can't exec "gtkdocize": No such file or directory at 
/usr/share/autoconf/Autom4te/FileUtils.pm line 293.
autoreconf: error: gtkdocize failed with exit status: 2
        find ! -ipath "./debian/*" -a ! \( -path '*/.git/*' -o -path '*/.hg/*' 
-o -path '*/.bzr/*' -o -path '*/.svn/*' -o -path '*/CVS/*' \) -a  -type f -exec 
md5sum {} + -o -type l -printf "symlink  %p
" > debian/autoreconf.after
dh_autoreconf: error: autoreconf -f -i returned exit code 2
make: *** [debian/rules:20: build] Error 25
dpkg-buildpackage: error: debian/rules build subprocess returned exit status 2