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{ fetchgit, stdenv, autoconf, automake, libtool
, machHeaders, hurdHeaders, hurd, headersOnly ? false
, cross ? null, gccCross ? null, glibcCross ? null }:
assert (cross != null) -> (gccCross != null) && (glibcCross != null);
assert (!headersOnly) -> (hurd != null);
let
date = "20111020";
# Use the `tschwinge/Peter_Herbolzheimer' branch as prescribed in
# <http://www.gnu.org/software/hurd/hurd/building/cross-compiling.html>.
rev = "a7b82c3302bf9c47176648eb802a61ae2d9a16f5";
in
stdenv.mkDerivation ({
name = "libpthread-hurd-${if headersOnly then "headers-" else ""}${date}";
src = fetchgit {
url = "git://git.sv.gnu.org/hurd/libpthread.git";
sha256 = "e8300762914d927c0da4168341a5982a1057613e1af363ee68942087b2570b3d";
inherit rev;
};
nativeBuildInputs = [ autoconf automake libtool ];
buildInputs = [ machHeaders hurdHeaders ]
++ stdenv.lib.optional (!headersOnly) hurd
++ stdenv.lib.optional (gccCross != null) gccCross;
preConfigure = "autoreconf -vfi";
meta = {
description = "GNU Hurd's libpthread";
license = stdenv.lib.licenses.lgpl2Plus;
maintainers = [ stdenv.lib.maintainers.ludo ];
};
}
//
(if headersOnly
then {
configureFlags =
[ "--build=i586-pc-gnu"
"ac_cv_lib_ihash_hurd_ihash_create=yes"
];
buildPhase = ":";
installPhase = "make install-data-local-headers";
}
else { })
//
(if cross != null
then {
crossConfig = cross.config;
# Tell gcc where to find `crt1.o' et al. This is specified in two
# different ways: one for gcc as run from `configure', and one for linking
# libpthread.so (by default `libtool --mode=link' swallows `-B', hence
# this workaround; see
# <http://lists.gnu.org/archive/html/bug-libtool/2010-05/msg00012.html>.)
LDFLAGS = "-B${glibcCross}/lib";
makeFlags = [ "LDFLAGS=-Wc,-B${glibcCross}/lib" ];
# Help the linker find glibc.
CPATH = "${glibcCross}/include";
LIBRARY_PATH = "${glibcCross}/lib";
passthru = {
# Extra target LDFLAGS to allow the cross-linker to find the
# dependencies of the cross libpthread.so, namely libihash.so.
# Note: these are raw `ld' flags, so `-Wl,' must be prepended when using
# `gcc'.
#
# This is actually only useful while building the final cross-gcc, since
# afterwards gcc-cross-wrapper should add the relevant flags.
TARGET_LDFLAGS = "-rpath-link=${hurd}/lib";
};
}
else { }))
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