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{stdenv, fetchzip, linuxHeaders, libiconvReal, 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
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 "";
# UCLIBC_SUSV4_LEGACY defines 'tmpnam', needed for gcc libstdc++ builds.
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
UCLIBC_SUSV4_LEGACY y
UCLIBC_HAS_THREADS_NATIVE y
KERNEL_HEADERS "${linuxHeaders}/include"
'' + stdenv.lib.optionalString (stdenv.isArm && cross == null) ''
CONFIG_ARM_EABI y
ARCH_WANTS_BIG_ENDIAN n
ARCH_BIG_ENDIAN n
ARCH_WANTS_LITTLE_ENDIAN y
ARCH_LITTLE_ENDIAN y
UCLIBC_HAS_FPU n
'';
name = "uclibc-0.9.34-pre-20150131";
rev = "343f6b8f1f754e397632b0552e4afe586c8b392b";
in
stdenv.mkDerivation {
name = name + stdenv.lib.optionalString (cross != null) ("-" + cross.config);
src = fetchzip {
name = name + "-source";
url = "http://git.uclibc.org/uClibc/snapshot/uClibc-${rev}.tar.bz2";
sha256 = "1kgylzpid7da5i7wz7slh5q9rnq1m8bv5h9ilm76g0xwc2iwlhbw";
};
# 'ftw' needed to build acl, a coreutils dependency
configurePhase = ''
make defconfig ${archMakeFlag}
${configParser}
cat << EOF | parseconfig
${nixConfig}
${extraConfig}
${if cross != null then stdenv.lib.attrByPath [ "uclibc" "extraConfig" ] "" cross else ""}
$extraCrossConfig
EOF
make oldconfig
'';
# Cross stripping hurts.
dontStrip = cross != null;
makeFlags = [ crossMakeFlag "VERBOSE=1" ];
buildInputs = stdenv.lib.optional (gccCross != null) gccCross;
enableParallelBuilding = true;
installPhase = ''
mkdir -p $out
make PREFIX=$out VERBOSE=1 install ${crossMakeFlag}
(cd $out/include && ln -s $(ls -d ${linuxHeaders}/include/* | grep -v "scsi$") .)
# libpthread.so may not exist, so I do || true
sed -i s@/lib/@$out/lib/@g $out/lib/libc.so $out/lib/libpthread.so || true
'';
passthru = {
# Derivations may check for the existance of this attribute, to know what to link to.
libiconv = libiconvReal;
};
meta = {
homepage = http://www.uclibc.org/;
description = "A small implementation of the C library";
license = stdenv.lib.licenses.lgpl2;
platforms = stdenv.lib.platforms.linux;
};
}
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