gistfile1.txt

[nix-shell:~/projects/github.com/NixOS/hydra]$ ./bootstrap 
autoreconf: Entering directory `.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: aclocal --force 
autoreconf: configure.ac: tracing
autoreconf: configure.ac: creating directory config
autoreconf: running: libtoolize --copy --force
libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, 'config'.
libtoolize: copying file 'config/ltmain.sh'
      return $my_return_status
             ^~~~~~~~~~~~~~~~~
/nix/store/mmjkhyl6z4kwcbjv10b5p7h8kbc7zz5y-libtool-2.4.6/bin/libtoolize:3165: fatal: 'return' expected a number, got ''
autoreconf: libtoolize failed with exit status: 1