mirror of
https://github.com/NixOS/nixpkgs.git
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49 lines
1.6 KiB
Nix
49 lines
1.6 KiB
Nix
{ stdenv, fetchurl, zlib, xz, python ? null, pythonSupport ? true, findXMLCatalogs }:
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assert pythonSupport -> python != null;
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#TODO: share most stuff between python and non-python builds, perhaps via multiple-output
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let
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version = "2.9.2";
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in
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stdenv.mkDerivation (rec {
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name = "libxml2-${version}";
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src = fetchurl {
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url = "http://xmlsoft.org/sources/${name}.tar.gz";
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sha256 = "1g6mf03xcabmk5ing1lwqmasr803616gb2xhn7pll10x2l5w6y2i";
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};
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buildInputs = stdenv.lib.optional pythonSupport python
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# Libxml2 has an optional dependency on liblzma. However, on impure
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# platforms, it may end up using that from /usr/lib, and thus lack a
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# RUNPATH for that, leading to undefined references for its users.
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++ (stdenv.lib.optional stdenv.isFreeBSD xz);
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propagatedBuildInputs = [ zlib findXMLCatalogs ];
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passthru = { inherit pythonSupport version; };
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enableParallelBuilding = true;
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meta = {
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homepage = http://xmlsoft.org/;
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description = "An XML parsing library for C";
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license = "bsd";
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platforms = stdenv.lib.platforms.unix;
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maintainers = [ stdenv.lib.maintainers.eelco ];
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};
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} // stdenv.lib.optionalAttrs pythonSupport {
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configureFlags = "--with-python=${python}";
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# this is a pair of ugly hacks to make python stuff install into the right place
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preInstall = ''substituteInPlace python/libxml2mod.la --replace "${python}" "$out"'';
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installFlags = ''pythondir="$(out)/lib/${python.libPrefix}/site-packages"'';
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} // stdenv.lib.optionalAttrs (!pythonSupport) {
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configureFlags = "--with-python=no"; # otherwise build impurity bites us
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})
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