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{stdenv, fetchurl, linuxHeaders, libiconv, cross ? null, gccCross ? null}:
assert stdenv.isLinux;
assert cross != null -> gccCross != null;
let
enableArmEABI = (cross == null && stdenv.platform.kernelArch == "arm")
|| (cross != null && cross.arch == "arm");
configArmEABI = if enableArmEABI then
''-e 's/.*CONFIG_ARM_OABI.*//' \
-e 's/.*CONFIG_ARM_EABI.*/CONFIG_ARM_EABI=y/' '' else "";
enableBigEndian = (cross != null && cross.bigEndian);
configBigEndian = if enableBigEndian then ""
else
''-e 's/.*ARCH_BIG_ENDIAN.*/#ARCH_BIG_ENDIAN=y/' \
-e 's/.*ARCH_WANTS_BIG_ENDIAN.*/#ARCH_WANTS_BIG_ENDIAN=y/' \
-e 's/.*ARCH_WANTS_LITTLE_ENDIAN.*/ARCH_WANTS_LITTLE_ENDIAN=y/' '';
archMakeFlag = if (cross != null) then "ARCH=${cross.arch}" else "";
crossMakeFlag = if (cross != null) then "CROSS=${cross.config}-" else "";
in
stdenv.mkDerivation {
name = "uclibc-0.9.30.2" + stdenv.lib.optionalString (cross != null)
("-" + cross.config);
src = fetchurl {
url = http://www.uclibc.org/downloads/uClibc-0.9.30.2.tar.bz2;
sha256 = "0wr4hlybssiyswdc73wdcxr31xfbss3lnqiv5lcav3rg3v4r4vmb";
};
# 'ftw' needed to build acl, a coreutils dependency
configurePhase = ''
make defconfig ${archMakeFlag}
sed -e s@/usr/include@${linuxHeaders}/include@ \
-e 's@^RUNTIME_PREFIX.*@RUNTIME_PREFIX="/"@' \
-e 's@^DEVEL_PREFIX.*@DEVEL_PREFIX="/"@' \
-e 's@.*UCLIBC_HAS_WCHAR.*@UCLIBC_HAS_WCHAR=y@' \
-e 's@.*UCLIBC_HAS_FTW.*@UCLIBC_HAS_FTW=y@' \
-e 's@.*DO_C99_MATH.*@DO_C99_MATH=y@' \
-e 's@.*UCLIBC_HAS_PROGRAM_INVOCATION_NAME.*@UCLIBC_HAS_PROGRAM_INVOCATION_NAME=y@' \
${configArmEABI} \
${configBigEndian} \
-i .config
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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