nixpkgs/pkgs/misc/busybox/default.nix

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{stdenv, fetchurl, enableStatic ? false, extraConfig ? null}:
let
configParser = ''
function parseconfig {
set -x
while read LINE; do
NAME=`echo "$LINE" | cut -d \ -f 1`
OPTION=`echo "$LINE" | cut -d \ -f 2`
if test -z "$NAME"; then
continue
fi
if test "$NAME" == "CLEAR"; then
echo "parseconfig: CLEAR"
echo > .config
fi
echo "parseconfig: removing $NAME"
sed -i /^$NAME=/d .config
if test "$OPTION" != n; then
echo "parseconfig: setting $NAME=$OPTION"
echo "$NAME=$OPTION" >> .config
fi
done
set +x
}
'';
nixConfig = ''
CONFIG_PREFIX "$out"
CONFIG_INSTALL_NO_USR n
'';
staticConfig = (if enableStatic then ''
CONFIG_STATIC y
'' else "");
in
stdenv.mkDerivation {
name = "busybox-1.16.0";
src = fetchurl {
url = http://busybox.net/downloads/busybox-1.16.0.tar.bz2;
sha256 = "1n738zk01yi2sjrx2y36hpzxbslas8b91vzykcifr0p1j7ym0lim";
};
configurePhase = ''
make defconfig
${configParser}
cat << EOF | parseconfig
${staticConfig}
${extraConfig}
${nixConfig}
$extraCrossConfig
EOF
make oldconfig
'';
crossAttrs = {
extraCrossConfig = ''
CONFIG_CROSS_COMPILER_PREFIX "${stdenv.cross.config}-"
'' +
(if (stdenv.cross.platform.kernelMajor == "2.4") then ''
CONFIG_IONICE n
'' else "");
};
}