default_pre_build &&
cd "$SOURCE_DIRECTORY" &&
# disable instalation of libtool pseudo-libraries
sed -E -i '/^[\t ]*(func_show_|$run )eval "[$]install_prog [$]instname /d' \
    {build,libltdl/config}/ltmain.sh &&
# fix build against musl
sed -i 's!maybe_os in$!& linux-musl*|\\!' {build,libltdl/config}/config.sub
