1 files changed, 46 insertions, 0 deletions
diff --git a/dev-libs/ncnn/ncnn-20220701.ebuild b/dev-libs/ncnn/ncnn-20220701.ebuild
new file mode 100644
index 000000000000..4b8ce607d594
--- /dev/null
+++ b/dev-libs/ncnn/ncnn-20220701.ebuild
@@ -0,0 +1,46 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+DESCRIPTION="High-performance neural network inference framework"
+HOMEPAGE="https://github.com/Tencent/ncnn/"
+SRC_URI="https://github.com/Tencent/ncnn/archive/${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="BSD ZLIB"
+SLOT="0/${PV}" # currently has unstable ABI that often requires rebuilds
+KEYWORDS="~amd64 ~x86"
+IUSE="tools +vulkan"
+
+# Need the static library to run tests + skip vulkan / GPU:
+# -DNCNN_BUILD_TESTS=ON -DNCNN_SHARED_LIB=OFF -DNCNN_VULKAN=OFF
+RESTRICT="test"
+
+RDEPEND="
+	tools? ( dev-libs/protobuf:= )
+	vulkan? (
+		dev-util/glslang
+		media-libs/vulkan-loader
+	)"
+DEPEND="
+	${RDEPEND}
+	vulkan? ( dev-util/vulkan-headers )"
+
+DOCS=( README.md docs/. )
+
+src_configure() {
+	local mycmakeargs=(
+		-DGLSLANG_TARGET_DIR="${ESYSROOT}"/usr/$(get_libdir)/cmake
+		-DNCNN_BUILD_EXAMPLES=OFF
+		-DNCNN_BUILD_TOOLS=$(usex tools)
+		-DNCNN_PYTHON=OFF # todo if something needs it
+		-DNCNN_SHARED_LIB=ON
+		-DNCNN_SYSTEM_GLSLANG=ON
+		-DNCNN_VERSION=${PV} # avoids libncnn.so.*.%Y%m%d using build date
+		-DNCNN_VULKAN=$(usex vulkan)
+	)
+
+	cmake_src_configure
+}