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{stdenv, fetchurl, linuxHeaders, libiconv, cross ? null, gccCross ? null,
extraConfig ? ""}:
assert stdenv.isLinux;
assert cross != null -> gccCross != 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
}
'';
archMakeFlag = if (cross != null) then "ARCH=${cross.arch}" else "";
crossMakeFlag = if (cross != null) then "CROSS=${cross.config}-" else "";
nixConfig = ''
RUNTIME_PREFIX "/"
DEVEL_PREFIX "/"
UCLIBC_HAS_WCHAR y
UCLIBC_HAS_FTW y
UCLIBC_HAS_RPC y
DO_C99_MATH y
UCLIBC_HAS_PROGRAM_INVOCATION_NAME y
KERNEL_HEADERS "${linuxHeaders}/include"
'';
in
stdenv.mkDerivation {
name = "uclibc-0.9.31" + stdenv.lib.optionalString (cross != null)
("-" + cross.config);
src = fetchurl {
url = http://www.uclibc.org/downloads/uClibc-0.9.31.tar.bz2;
sha256 = "1yk328fnz0abgh2vm2r68y65ckfkx97rdp8hbg4xvmx5s94kblw0";
};
# 'ftw' needed to build acl, a coreutils dependency
configurePhase = ''
make defconfig ${archMakeFlag}
${configParser}
cat << EOF | parseconfig
${nixConfig}
${extraConfig}
${if cross != null then cross.uclibc.extraConfig else ""}
$extraCrossConfig
EOF
make oldconfig
'';
# Cross stripping hurts.
dontStrip = if (cross != null) then true else false;
makeFlags = [ crossMakeFlag "VERBOSE=1" ];
buildInputs = stdenv.lib.optional (gccCross != null) gccCross;
installPhase = ''
mkdir -p $out
make PREFIX=$out VERBOSE=1 install ${crossMakeFlag}
(cd $out/include && ln -s $(ls -d ${linuxHeaders}/include/* | grep -v "scsi$") .)
sed -i s@/lib/@$out/lib/@g $out/lib/libc.so
'';
passthru = {
# Derivations may check for the existance of this attribute, to know what to link to.
inherit libiconv;
};
meta = {
homepage = http://www.uclibc.org/;
description = "A small implementation of the C library";
license = "LGPLv2";
};
}
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