default_pre_build                                        &&
cd $SOURCE_DIRECTORY                                     &&
patch -p1 < $SCRIPT_DIRECTORY/bug140588-as-needed.patch  &&
patch -p0 < $SCRIPT_DIRECTORY/autotrace-0.31.1-libpng15.patch &&
sedit 's!maybe_os in$!& linux-musl*|\\!' config.sub &&
# disable instalation of libtool pseudo-libraries
sedit '/^[\t ]*[$]\(show\|run eval\) "[$]install_prog [$]instname /d' ltmain.sh
