nixpkgs/pkgs/os-specific/linux/alsa-lib/default.nix

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{ lib, stdenv, fetchurl, alsa-ucm-conf, alsa-topology-conf }:
stdenv.mkDerivation rec {
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pname = "alsa-lib";
version = "1.2.4";
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src = fetchurl {
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url = "mirror://alsa/lib/${pname}-${version}.tar.bz2";
sha256 = "sha256-91VL4aVs3/RotY/BwpuVtkhkxZADjdMJx6l4xxFpCPc=";
};
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patches = [
./alsa-plugin-conf-multilib.patch
];
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enableParallelBuilding = true;
# Fix pcm.h file in order to prevent some compilation bugs
postPatch = ''
sed -i -e 's|//int snd_pcm_mixer_element(snd_pcm_t \*pcm, snd_mixer_t \*mixer, snd_mixer_elem_t \*\*elem);|/\*int snd_pcm_mixer_element(snd_pcm_t \*pcm, snd_mixer_t \*mixer, snd_mixer_elem_t \*\*elem);\*/|' include/pcm.h
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'';
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postInstall = ''
ln -s ${alsa-ucm-conf}/share/alsa/{ucm,ucm2} $out/share/alsa
ln -s ${alsa-topology-conf}/share/alsa/topology $out/share/alsa
'';
outputs = [ "out" "dev" ];
meta = with lib; {
homepage = "http://www.alsa-project.org/";
description = "ALSA, the Advanced Linux Sound Architecture libraries";
longDescription = ''
The Advanced Linux Sound Architecture (ALSA) provides audio and
MIDI functionality to the Linux-based operating system.
'';
license = licenses.gpl3Plus;
platforms = platforms.linux;
};
}