nixpkgs/pkgs/development/libraries/libxml2/default.nix

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{ stdenv, fetchurl, zlib, xz, python ? null, pythonSupport ? true }:
assert pythonSupport -> python != null;
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stdenv.mkDerivation rec {
name = "libxml2-2.9.0";
src = fetchurl {
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url = "ftp://xmlsoft.org/libxml2/${name}.tar.gz";
sha256 = "10ib8bpar2pl68aqksfinvfmqknwnk7i35ibq6yjl8dpb0cxj9dd";
};
patches = [ ./pthread-once-init.patch ];
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configureFlags = stdenv.lib.optionalString pythonSupport "--with-python=${python}";
buildInputs = (stdenv.lib.optional pythonSupport [ python ])
# Libxml2 has an optional dependency on liblzma. However, on impure
# platforms, it may end up using that from /usr/lib, and thus lack a
# RUNPATH for that, leading to undefined references for its users.
++ (stdenv.lib.optional stdenv.isFreeBSD xz);
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propagatedBuildInputs = [ zlib ];
setupHook = ./setup-hook.sh;
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passthru = { inherit pythonSupport; };
enableParallelBuilding = true;
meta = {
homepage = http://xmlsoft.org/;
description = "An XML parsing library for C";
license = "bsd";
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platforms = stdenv.lib.platforms.linux;
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maintainers = [ stdenv.lib.maintainers.eelco ];
};
}