commit:     182a324f44e60684c6c72750ead69fb7149b3012
Author:     Ionen Wolkens <sudinave <AT> gmail <DOT> com>
AuthorDate: Sat May 29 07:38:30 2021 +0000
Commit:     Piotr Karbowski <slashbeast <AT> gentoo <DOT> org>
CommitDate: Mon May 31 19:30:38 2021 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=182a324f

dev-libs/ncnn: add 20210525

ebuild updates:
- respect $(get_libdir)
- build shared library over static (this new version also exports
  additional symbols needed by waifu2x-ncnn-vulkan for shared linking)
- install more docs
- add IUSE for tools and vulkan
- add ZLIB license for *_mathfun.h
- add temporary workaround for bug 730468
- scrubbed previous patch and added upstream issue link (still needed)

Closes: https://bugs.gentoo.org/730468
Signed-off-by: Ionen Wolkens <sudinave <AT> gmail.com>
Signed-off-by: Piotr Karbowski <slashbeast <AT> gentoo.org>

 dev-libs/ncnn/Manifest                             |  1 +
 dev-libs/ncnn/files/ncnn-fix-glslang-include.patch | 10 +--
 dev-libs/ncnn/metadata.xml                         |  4 ++
 dev-libs/ncnn/ncnn-20210525.ebuild                 | 76 ++++++++++++++++++++++
 4 files changed, 84 insertions(+), 7 deletions(-)

diff --git a/dev-libs/ncnn/Manifest b/dev-libs/ncnn/Manifest
index e72cd830e5e..6bb71095c01 100644
--- a/dev-libs/ncnn/Manifest
+++ b/dev-libs/ncnn/Manifest
@@ -2,3 +2,4 @@ DIST ncnn-20200226.tar.gz 10363010 BLAKE2B 
3f5e22ecffc7d36d7babb8c316eb95785f60b
 DIST ncnn-20200413.tar.gz 10520160 BLAKE2B 
10fc59f3a09d1a6b21a6c73b87dabd450279d2c30923b15266461360c6a63b7cc58f91e33c6563752161de3ca067098ed4f2d22963410fe3f72a8affbd39172e
 SHA512 
3f3610f94cbfa6072347857675865b3b21e4cb330a3b889214e7e8cf6e7a558451979ee4ba727c28fc5919a38b27d3b0288dfbd1bfa06d92d3677b4035b019fd
 DIST ncnn-20200727.tar.gz 10989866 BLAKE2B 
27ec105d4ea24b1bcccfb64074f47332515112b7fed7b6f833c6d3fd846542f14248254d076e3d1e63eb16cedb51d16dd156890ca805f4160d7e6ceb3de1b46a
 SHA512 
122653ee4fcf6e45665154ff6014eb3291d48174ec153b27ccb9013bd705a81e664e4c4ad94df5cb3ea661891115929562db45c7c714747fb6f7673b09a16b68
 DIST ncnn-20210322.tar.gz 11339362 BLAKE2B 
26848f8c6598c98e10e62717bf4aa86f803b425848bdeebd7dacd752f57174e4c3a7fe56d309cafa150be7cb80176fbd8f487c9fe79bc957e29157b1781fe849
 SHA512 
78862bdbba3ae4127d856f514ea37903098e8a9e827ccbdc85faa498d8a343b4c404465b7f55d368f2ea867063340f33facf286c2bad6a0587b903ba8bbf2394
+DIST ncnn-20210525.tar.gz 11578821 BLAKE2B 
1b6dc67cb89e4761c6de256c8854c3969c553159c11713d9bbbe04abd027e9439ffb694e8129da4d965807d1ec326d643c71c00ee1f032dbf4c2271c2699ceb2
 SHA512 
5d919b6830f5a75c751d64476f5bf2b9b71ced1cee29e4156c4f01a9d7d8833dfdf8420747c55979c5b39b29fd63b5bf4bc3d27b756a617ef39f4e2ce4da2f93

diff --git a/dev-libs/ncnn/files/ncnn-fix-glslang-include.patch 
b/dev-libs/ncnn/files/ncnn-fix-glslang-include.patch
index bd96a79e175..00eb01f03fc 100644
--- a/dev-libs/ncnn/files/ncnn-fix-glslang-include.patch
+++ b/dev-libs/ncnn/files/ncnn-fix-glslang-include.patch
@@ -1,13 +1,9 @@
-diff --git a/src/gpu.cpp b/src/gpu.cpp
-index ce1306c..468cd03 100644
+Needed to use system's glslang rather than bundled.
+https://github.com/Tencent/ncnn/issues/2622
 --- a/src/gpu.cpp
 +++ b/src/gpu.cpp
-@@ -21,7 +21,7 @@
- #include <vulkan/vulkan.h>
- 
+@@ -23,3 +23,3 @@
  #include "glslang/SPIRV/GlslangToSpv.h"
 -#include "glslang/glslang/Public/ShaderLang.h"
 +#include "glslang/Public/ShaderLang.h"
  
- #include "command.h"
- #include "layer.h"

diff --git a/dev-libs/ncnn/metadata.xml b/dev-libs/ncnn/metadata.xml
index 5f85797b979..93b23a68d96 100644
--- a/dev-libs/ncnn/metadata.xml
+++ b/dev-libs/ncnn/metadata.xml
@@ -9,6 +9,10 @@
                <email>sudin...@gmail.com</email>
                <name>Ionen Wolkens</name>
        </maintainer>
+       <use>
+               <flag name="tools">Enable installation of various tools in 
addition to the library</flag>
+               <flag name="vulkan">Enable vulkan compute support</flag>
+       </use>
        <upstream>
                <remote-id type="github">Tencent/ncnn</remote-id>
        </upstream>

diff --git a/dev-libs/ncnn/ncnn-20210525.ebuild 
b/dev-libs/ncnn/ncnn-20210525.ebuild
new file mode 100644
index 00000000000..efac9e4e581
--- /dev/null
+++ b/dev-libs/ncnn/ncnn-20210525.ebuild
@@ -0,0 +1,76 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+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"
+KEYWORDS="~amd64 ~x86"
+IUSE="tools +vulkan"
+
+# Need the static library to run tests:
+# -DNCNN_BUILD_TESTS=ON, -DNCNN_SHARED_LIB=OFF, USE=-vulkan (skip GPU)
+RESTRICT="test"
+
+RDEPEND="
+       dev-util/glslang
+       tools? ( dev-libs/protobuf:= )
+       vulkan? ( media-libs/vulkan-loader )"
+DEPEND="
+       ${RDEPEND}
+       vulkan? ( dev-util/vulkan-headers )"
+
+PATCHES=(
+       "${FILESDIR}"/${PN}-fix-glslang-include.patch
+)
+DOCS=( README.md docs/. )
+
+src_prepare() {
+       cmake_src_prepare
+
+       sed -i "/DESTINATION/s| lib| $(get_libdir)|" src/CMakeLists.txt || die
+
+       # Workaround build issues on AVX without AVX2 (bug #730468)
+       # This can be removed if CXXFLAGS="-mavx -mno-avx2" builds after a bump.
+       find src -type f -exec sed -i s/__AVX__/__AVX2__/g {} + || die
+}
+
+src_configure() {
+       local mycmakeargs=(
+               -DCMAKE_SKIP_RPATH=ON # for tools
+               -DGLSLANG_TARGET_DIR="${ESYSROOT}"/usr/$(get_libdir)/cmake
+               -DNCNN_BUILD_EXAMPLES=OFF
+               -DNCNN_BUILD_TOOLS=$(usex tools)
+               -DNCNN_PYTHON=OFF # missing portalocker, and nothing needs this 
for now
+               -DNCNN_SHARED_LIB=ON
+               -DNCNN_SYSTEM_GLSLANG=ON
+               -DNCNN_VERSION=${PV} # avoids libncnn.so.*.%Y%m%d (build date)
+               -DNCNN_VULKAN=$(usex vulkan)
+       )
+
+       cmake_src_configure
+}
+
+src_install() {
+       cmake_src_install
+
+       if use tools; then
+               local tools=(
+                       caffe/caffe2ncnn
+                       darknet/darknet2ncnn
+                       mxnet/mxnet2ncnn
+                       ncnn2mem
+                       ncnnmerge
+                       ncnnoptimize
+                       onnx/onnx2ncnn
+                       quantize/{ncnn2int8,ncnn2table}
+               )
+               dobin "${tools[@]/#/${BUILD_DIR}/tools/}"
+       fi
+}

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