nixpkgs/pkgs/development/libraries/glibc-2.7/builder.sh

# glibc cannot have itself in its rpath.
export NIX_NO_SELF_RPATH=1
export NIX_DONT_SET_RPATH=1

source $stdenv/setup

# Explicitly tell glibc to use our pwd, not /bin/pwd.
export PWD_P=$(type -tP pwd)


preConfigure=preConfigure
preConfigure() {

    for i in configure io/ftwtest-sh; do
        substituteInPlace "$i" \
            --replace "@PWD@" "pwd"
    done

    # In the glibc 2.6/2.7 tarballs C-translit.h is a little bit older
    # than C-translit.h.in, forcing Make to rebuild it unnecessarily.
    # This wouldn't be problem except that it requires Perl, which we
    # don't want as a dependency in the Nixpkgs bootstrap.  So force
    # the output file to be newer.
    touch locale/C-translit.h
    
    mkdir ../build
    cd ../build
    
    configureScript=../$sourceRoot/configure
}


postConfigure=postConfigure
postConfigure() {
    # Hack: get rid of the `-static' flag set by the bootstrap stdenv.
    # This has to be done *after* `configure' because it builds some
    # test binaries.
    export NIX_CFLAGS_LINK=
    export NIX_LDFLAGS_BEFORE=
}


postInstall=postInstall
postInstall() {
    if test -n "$installLocales"; then
        make localedata/install-locales
    fi
    rm $out/etc/ld.so.cache
    (cd $out/include && ln -s $kernelHeaders/include/* .) || exit 1

    # Fix for NIXOS-54 (ldd not working on x86_64).  Make a symlink
    # "lib64" to "lib".
    if test -n "$is64bit"; then
        ln -s lib $out/lib64
    fi
}


genericBuild