The PR that added this condition said[1]: > Note that nasm is only needed for x86 targets. This suggests to me that hostPlatform was always intended, and using buildPlatform for x86_64 was a typo. This change fixes cross compilation from aarch64-linux to x86_64-linux. I've also tested that it doesn't break x86_64-linux -> aarch64-linux. [1]: https://github.com/NixOS/nixpkgs/pull/76914
58 lines
1.8 KiB
Nix
58 lines
1.8 KiB
Nix
{ stdenv, lib, fetchFromGitLab, fetchpatch, nasm
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, enableShared ? !stdenv.hostPlatform.isStatic
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}:
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stdenv.mkDerivation rec {
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pname = "x264";
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version = "unstable-2021-06-13";
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src = fetchFromGitLab {
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domain = "code.videolan.org";
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owner = "videolan";
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repo = pname;
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rev = "5db6aa6cab1b146e07b60cc1736a01f21da01154";
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sha256 = "0swyrkz6nvajivxvrr08py0jrfcsjvpxw78xm1k5gd9xbdrxvknh";
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};
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# Upstream ./configure greps for (-mcpu|-march|-mfpu) in CFLAGS, which in nix
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# is put in the cc wrapper anyway.
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patches = [
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./disable-arm-neon-default.patch
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(fetchpatch {
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# https://code.videolan.org/videolan/x264/-/merge_requests/114
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name = "fix-parallelism.patch";
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url = "https://code.videolan.org/videolan/x264/-/commit/e067ab0b530395f90b578f6d05ab0a225e2efdf9.patch";
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hash = "sha256-16h2IUCRjYlKI2RXYq8QyXukAdfoQxyBKsK/nI6vhRI=";
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})
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];
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postPatch = ''
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patchShebangs .
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'';
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enableParallelBuilding = true;
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outputs = [ "out" "lib" "dev" ];
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preConfigure = lib.optionalString stdenv.hostPlatform.isx86 ''
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# `AS' is set to the binutils assembler, but we need nasm
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unset AS
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'' + lib.optionalString stdenv.hostPlatform.isAarch ''
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export AS=$CC
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'';
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configureFlags = lib.optional enableShared "--enable-shared"
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++ lib.optional (!stdenv.isi686) "--enable-pic"
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++ lib.optional (stdenv.buildPlatform != stdenv.hostPlatform) "--cross-prefix=${stdenv.cc.targetPrefix}";
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nativeBuildInputs = lib.optional stdenv.hostPlatform.isx86 nasm;
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meta = with lib; {
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description = "Library for encoding H264/AVC video streams";
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homepage = "http://www.videolan.org/developers/x264.html";
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license = licenses.gpl2Plus;
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platforms = platforms.unix;
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maintainers = with maintainers; [ tadeokondrak ];
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};
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}
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