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#!/bin/echo Try "scripts/mkroot.sh dropbear"
# Example overlay file, adding dropbear (which requires zlib)
echo === download source
download a4d316c404ff54ca545ea71a27af7dbc29817088 \
http://downloads.sf.net/libpng/zlib-1.2.8.tar.gz
download 820ec2b8c869edbcf5ad1138777fc0f54349505c \
https://matt.ucc.asn.au/dropbear/releases/dropbear-2019.78.tar.bz2
echo === Native build static zlib
setupfor zlib
# They keep checking in broken generated files.
rm -f Makefile zconf.h &&
CC=${CROSS_COMPILE}cc LD=${CROSS_COMPILE}ld AS=${CROSS_COMPILE}as ./configure &&
make -j $(nproc) || exit 1
# do _not_ cleanup zlib, we need the files we just built for dropbear
cd ..
echo === $HOST Native build static dropbear
setupfor dropbear
# Repeat after me: "autoconf is useless"
echo 'echo "$@"' > config.sub &&
ZLIB="$(echo ../zlib*)" &&
CFLAGS="-I $ZLIB -O2" LDFLAGS="-L $ZLIB" ./configure --enable-static \
--host=${CROSS_BASE%-} &&
sed -i 's@/usr/bin/dbclient@ssh@' options.h &&
sed -i 's@\(#define NON_INETD_MODE\) 1@\1 0@' default_options.h &&
make -j $(nproc) PROGRAMS="dropbear dbclient dropbearkey dropbearconvert scp" MULTI=1 SCPPROGRESS=1 &&
${CROSS_COMPILE}strip dropbearmulti &&
mkdir -p "$ROOT/bin" &&
cp dropbearmulti "$ROOT"/bin || exit 1
for i in "$ROOT"/bin/{ssh,sshd,scp,dropbearkey}
do
ln -s dropbearmulti $i || exit 1
done
cleanup
rm -rf zlib-*
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