101 lines
2.7 KiB
Nix
101 lines
2.7 KiB
Nix
{stdenv, fetchurl, linuxHeaders, libiconv, cross ? null, gccCross ? null,
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extraConfig ? ""}:
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assert stdenv.isLinux;
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assert cross != null -> gccCross != null;
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let
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configParser = ''
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function parseconfig {
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set -x
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while read LINE; do
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NAME=`echo "$LINE" | cut -d \ -f 1`
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OPTION=`echo "$LINE" | cut -d \ -f 2`
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if test -z "$NAME"; then
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continue
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fi
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if test "$NAME" == "CLEAR"; then
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echo "parseconfig: CLEAR"
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echo > .config
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fi
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echo "parseconfig: removing $NAME"
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sed -i /^$NAME=/d .config
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if test "$OPTION" != n; then
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echo "parseconfig: setting $NAME=$OPTION"
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echo "$NAME=$OPTION" >> .config
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fi
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done
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set +x
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}
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'';
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archMakeFlag = if cross != null then "ARCH=${cross.arch}" else "";
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crossMakeFlag = if cross != null then "CROSS=${cross.config}-" else "";
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# UCLIBC_SUSV4_LEGACY defines 'tmpnam', needed for gcc libstdc++ builds.
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nixConfig = ''
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RUNTIME_PREFIX "/"
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DEVEL_PREFIX "/"
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UCLIBC_HAS_WCHAR y
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UCLIBC_HAS_FTW y
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UCLIBC_HAS_RPC y
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DO_C99_MATH y
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UCLIBC_HAS_PROGRAM_INVOCATION_NAME y
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UCLIBC_SUSV4_LEGACY y
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UCLIBC_HAS_THREADS_NATIVE y
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KERNEL_HEADERS "${linuxHeaders}/include"
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'';
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in
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stdenv.mkDerivation {
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name = "uclibc-0.9.33.2" + stdenv.lib.optionalString (cross != null)
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("-" + cross.config);
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src = fetchurl {
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url = http://www.uclibc.org/downloads/uClibc-0.9.33.2.tar.bz2;
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sha256 = "0qhngsbzj2s6nz92b1s2p0dmvwk8xiqpy58j7ljzw186grvjr3cq";
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};
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# 'ftw' needed to build acl, a coreutils dependency
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configurePhase = ''
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make defconfig ${archMakeFlag}
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${configParser}
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cat << EOF | parseconfig
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${nixConfig}
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${extraConfig}
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${if cross != null then stdenv.lib.attrByPath [ "uclibc" "extraConfig" ] "" cross else ""}
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$extraCrossConfig
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EOF
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make oldconfig
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'';
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# Cross stripping hurts.
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dontStrip = cross != null;
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makeFlags = [ crossMakeFlag "VERBOSE=1" ];
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buildInputs = stdenv.lib.optional (gccCross != null) gccCross;
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installPhase = ''
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mkdir -p $out
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make PREFIX=$out VERBOSE=1 install ${crossMakeFlag}
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(cd $out/include && ln -s $(ls -d ${linuxHeaders}/include/* | grep -v "scsi$") .)
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# libpthread.so may not exist, so I do || true
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sed -i s@/lib/@$out/lib/@g $out/lib/libc.so $out/lib/libpthread.so || true
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'';
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passthru = {
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# Derivations may check for the existance of this attribute, to know what to link to.
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inherit libiconv;
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};
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meta = {
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homepage = http://www.uclibc.org/;
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description = "A small implementation of the C library";
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license = "LGPLv2";
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};
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}
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