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https://github.com/NixOS/nixpkgs.git
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e0464e4788
In preparation for the deprecation of `stdenv.isX`. These shorthands are not conducive to cross-compilation because they hide the platforms. Darwin might get cross-compilation for which the continued usage of `stdenv.isDarwin` will get in the way One example of why this is bad and especially affects compiler packages https://www.github.com/NixOS/nixpkgs/pull/343059 There are too many files to go through manually but a treewide should get users thinking when they see a `hostPlatform.isX` in a place where it doesn't make sense. ``` fd --type f "\.nix" | xargs sd --fixed-strings "stdenv.is" "stdenv.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "stdenv'.is" "stdenv'.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "clangStdenv.is" "clangStdenv.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "gccStdenv.is" "gccStdenv.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "stdenvNoCC.is" "stdenvNoCC.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "inherit (stdenv) is" "inherit (stdenv.hostPlatform) is" fd --type f "\.nix" | xargs sd --fixed-strings "buildStdenv.is" "buildStdenv.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "effectiveStdenv.is" "effectiveStdenv.hostPlatform.is" fd --type f "\.nix" | xargs sd --fixed-strings "originalStdenv.is" "originalStdenv.hostPlatform.is" ```
51 lines
1.2 KiB
Nix
51 lines
1.2 KiB
Nix
{ lib
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, stdenv
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, fetchFromGitHub
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, cmake
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, vulkan-headers
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, vulkan-loader
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, glslang
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, opencv
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, protobuf
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}:
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stdenv.mkDerivation rec {
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pname = "ncnn";
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version = "20240820";
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src = fetchFromGitHub {
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owner = "Tencent";
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repo = pname;
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rev = version;
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hash = "sha256-KFRWpPajSqYeasPKaNMVe0WTIXwCI5v9GLo5ygN/22M=";
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};
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patches = [
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./cmakelists.patch
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];
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cmakeFlags = [
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"-DNCNN_CMAKE_VERBOSE=1" # Only for debugging the build
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"-DNCNN_SHARED_LIB=1"
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"-DNCNN_ENABLE_LTO=1"
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"-DNCNN_VULKAN=1"
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"-DNCNN_BUILD_EXAMPLES=0"
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"-DNCNN_BUILD_TOOLS=0"
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"-DNCNN_SYSTEM_GLSLANG=1"
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"-DNCNN_PYTHON=0" # Should be an attribute
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]
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# Requires setting `Vulkan_LIBRARY` on Darwin. Otherwise the build fails due to missing symbols.
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++ lib.optionals stdenv.hostPlatform.isDarwin [ "-DVulkan_LIBRARY=-lvulkan" ];
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nativeBuildInputs = [ cmake ];
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buildInputs = [ vulkan-headers vulkan-loader glslang opencv protobuf ];
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meta = with lib; {
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description = "ncnn is a high-performance neural network inference framework optimized for the mobile platform";
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homepage = "https://github.com/Tencent/ncnn";
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license = licenses.bsd3;
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maintainers = with maintainers; [ tilcreator ];
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platforms = platforms.all;
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};
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}
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