diff --git a/dev-cpp/cpp-taskflow/Manifest b/dev-cpp/cpp-taskflow/Manifest
new file mode 100644
index 0000000000..408dc82a03
--- /dev/null
+++ b/dev-cpp/cpp-taskflow/Manifest
@@ -0,0 +1,2 @@
+DIST cpp-taskflow-2.3.1.tar.gz 98888910 BLAKE2B 3ecbc3eaf8db68ded66222c512ff7e22633fc0276eaff8ca9fd43bad13bb810ef064d0c8e762a960cdfff9197e4a810b75005a0063042c724b42599a2716e609 SHA512 94d5784198571886520d9f5d69dbce659c3cd214d986e9ac001816033d7719ae21d22ed2f5879549df15b23035d06200938a07928dd773f507317ede8a121899
+DIST cpp-taskflow-2.4.0.tar.gz 76993334 BLAKE2B 8f257165ab72dbe6c1cf6a86886669008e9f16f1dfd4871defc452bdb9dfa3e45ab9bfbbdc874b4ba566a2a7d8984a666ce2933b2c6d2215467f7fbfa03ac520 SHA512 dd6c7500e39d7058871280d12e120bd28d9609e5289f1d7851b3b59e2c1bfe74d3040d902bd5b26895e558b563c8abad878e7bc343e199e7356940c02a64217f
diff --git a/dev-cpp/cpp-taskflow/cpp-taskflow-2.3.1.ebuild b/dev-cpp/cpp-taskflow/cpp-taskflow-2.3.1.ebuild
new file mode 100644
index 0000000000..97255ac282
--- /dev/null
+++ b/dev-cpp/cpp-taskflow/cpp-taskflow-2.3.1.ebuild
@@ -0,0 +1,39 @@
+# Copyright 2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit cmake
+
+DESCRIPTION="Modern C++ Parallel Task Programming"
+HOMEPAGE="https://cpp-taskflow.github.io"
+if [[ ${PV} == 9999 ]]; then
+ EGIT_REPO_URI="https://github.com/cpp-taskflow/${PN}.git"
+ inherit git-r3
+ KEYWORDS=""
+else
+ SRC_URI="https://github.com/cpp-taskflow/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+ KEYWORDS="~amd64 ~x86"
+fi
+
+LICENSE="MIT"
+SLOT="0"
+IUSE="test"
+
+DEPEND=""
+RDEPEND="${DEPEND}"
+BDEPEND=""
+RESTRICT="!test? ( test )"
+
+PATCHES=(
+ "${FILESDIR}"/${P}-optional-tests-examples.patch
+ "${FILESDIR}"/${P}-fix-lib-path.patch
+)
+
+
+src_configure() {
+ local mycmakeargs=(
+ -DTF_BUILD_TESTS=$(usex test ON OFF)
+ )
+ cmake_src_configure
+}
diff --git a/dev-cpp/cpp-taskflow/cpp-taskflow-2.4.0.ebuild b/dev-cpp/cpp-taskflow/cpp-taskflow-2.4.0.ebuild
new file mode 100644
index 0000000000..8edadb74c1
--- /dev/null
+++ b/dev-cpp/cpp-taskflow/cpp-taskflow-2.4.0.ebuild
@@ -0,0 +1,39 @@
+# Copyright 2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit cmake
+
+DESCRIPTION="Modern C++ Parallel Task Programming"
+HOMEPAGE="https://cpp-taskflow.github.io"
+if [[ ${PV} == 9999 ]]; then
+ EGIT_REPO_URI="https://github.com/cpp-taskflow/${PN}.git"
+ inherit git-r3
+ KEYWORDS=""
+else
+ SRC_URI="https://github.com/cpp-taskflow/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+ KEYWORDS="~amd64 ~x86"
+fi
+
+LICENSE="MIT"
+SLOT="0"
+IUSE="test"
+
+DEPEND=""
+RDEPEND="${DEPEND}"
+BDEPEND=""
+RESTRICT="!test? ( test )"
+
+PATCHES=(
+ "${FILESDIR}"/${P}-optional-tests-examples.patch
+ "${FILESDIR}"/${P}-fix-lib-path.patch
+ "${FILESDIR}"/${P}-fix-version-number.patch
+)
+
+src_configure() {
+ local mycmakeargs=(
+ -DTF_BUILD_TESTS=$(usex test ON OFF)
+ )
+ cmake_src_configure
+}
diff --git a/dev-cpp/cpp-taskflow/cpp-taskflow-9999.ebuild b/dev-cpp/cpp-taskflow/cpp-taskflow-9999.ebuild
new file mode 100644
index 0000000000..ced7f05318
--- /dev/null
+++ b/dev-cpp/cpp-taskflow/cpp-taskflow-9999.ebuild
@@ -0,0 +1,38 @@
+# Copyright 2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit cmake
+
+DESCRIPTION="Modern C++ Parallel Task Programming"
+HOMEPAGE="https://cpp-taskflow.github.io"
+if [[ ${PV} == 9999 ]]; then
+ EGIT_REPO_URI="https://github.com/cpp-taskflow/${PN}.git"
+ inherit git-r3
+ KEYWORDS=""
+else
+ SRC_URI="https://github.com/cpp-taskflow/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+ KEYWORDS="~amd64 ~x86"
+fi
+
+LICENSE="MIT"
+SLOT="0"
+IUSE="test"
+
+DEPEND=""
+RDEPEND="${DEPEND}"
+BDEPEND=""
+RESTRICT="!test? ( test )"
+
+PATCHES=(
+ "${FILESDIR}"/${P}-optional-tests-examples.patch
+ "${FILESDIR}"/${P}-fix-lib-path.patch
+)
+
+src_configure() {
+ local mycmakeargs=(
+ -DTF_BUILD_TESTS=$(usex test ON OFF)
+ )
+ cmake_src_configure
+}
diff --git a/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.3.1-fix-lib-path.patch b/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.3.1-fix-lib-path.patch
new file mode 100644
index 0000000000..2b89307798
--- /dev/null
+++ b/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.3.1-fix-lib-path.patch
@@ -0,0 +1,49 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index c267f84..3f357aa 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -16,6 +16,7 @@ option(TF_BUILD_BENCHMARKS "Enables build of benchmarks" OFF)
+
+ # Include additional language check
+ include(CheckLanguage)
++include(GNUInstallDirs)
+
+ # Compiler vendors
+ ## g++
+@@ -157,8 +158,8 @@ target_link_libraries(
+ #set(CMAKE_CXX_EXTENSIONS OFF)
+
+ # installation path
+-set(TF_INC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/include")
+-set(TF_LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib")
++set(TF_INC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}")
++set(TF_LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
+ set(TF_UTEST_DIR ${PROJECT_SOURCE_DIR}/unittests)
+ set(TF_EXAMPLE_DIR ${PROJECT_SOURCE_DIR}/examples)
+ set(TF_BENCHMARK_DIR ${PROJECT_SOURCE_DIR}/benchmarks)
+@@ -782,7 +783,7 @@ install(TARGETS ${PROJECT_NAME} EXPORT ${PROJECT_NAME}Targets)
+ install(
+ EXPORT ${PROJECT_NAME}Targets
+ NAMESPACE ${PROJECT_NAME}::
+- DESTINATION ${TF_LIB_INSTALL_DIR}/cmake
++ DESTINATION ${TF_LIB_INSTALL_DIR}/cmake/${PROJECT_NAME}
+ )
+
+ # set up config
+@@ -791,7 +792,7 @@ include(CMakePackageConfigHelpers)
+ configure_package_config_file(
+ ${PROJECT_NAME}Config.cmake.in
+ ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
+- INSTALL_DESTINATION ${TF_LIB_INSTALL_DIR}/cmake
++ INSTALL_DESTINATION ${TF_LIB_INSTALL_DIR}/cmake/${PROJECT_NAME}
+ PATH_VARS TF_INC_INSTALL_DIR
+ )
+
+@@ -803,6 +804,6 @@ write_basic_package_version_file(
+ install(
+ FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
+ ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
+- DESTINATION ${TF_LIB_INSTALL_DIR}/cmake
++ DESTINATION ${TF_LIB_INSTALL_DIR}/cmake/${PROJECT_NAME}
+ )
+
diff --git a/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.3.1-optional-tests-examples.patch b/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.3.1-optional-tests-examples.patch
new file mode 100644
index 0000000000..279277e7fe
--- /dev/null
+++ b/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.3.1-optional-tests-examples.patch
@@ -0,0 +1,49 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 3fccfd2..c267f84 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -9,8 +9,8 @@ set(CMAKE_VERBOSE_MAKEFILE ON)
+ project(Cpp-Taskflow VERSION 2.3.1 LANGUAGES CXX)
+
+ # build options
+-option(TF_BUILD_EXAMPLES "Enables build of examples" ON)
+-option(TF_BUILD_TESTS "Enables build of tests" ON)
++option(TF_BUILD_EXAMPLES "Enables build of examples" OFF)
++option(TF_BUILD_TESTS "Enables build of tests" OFF)
+ option(TF_ENABLE_CUDA "Enables build of cuda code" OFF)
+ option(TF_BUILD_BENCHMARKS "Enables build of benchmarks" OFF)
+
+@@ -222,7 +222,7 @@ target_include_directories(${PROJECT_NAME} INTERFACE
+ # Example program
+ # -----------------------------------------------------------------------------
+
+-if(${TF_BUILD_EXAMPLES})
++if(TF_BUILD_EXAMPLES)
+
+ message(STATUS "Building examples ...")
+ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${TF_EXAMPLE_DIR})
+@@ -282,13 +282,13 @@ target_link_libraries(
+ )
+ endif(${TF_ENABLE_CUDA})
+
+-endif(${TF_BUILD_EXAMPLES}) # ---- if TF_BUILD_EXAMPLES
++endif(TF_BUILD_EXAMPLES) # ---- if TF_BUILD_EXAMPLES
+
+ # -----------------------------------------------------------------------------
+ # Unittest
+ # -----------------------------------------------------------------------------
+
+-if(${TF_BUILD_TESTS})
++if(TF_BUILD_TESTS)
+
+ enable_testing()
+ message(STATUS "Building unit tests ...")
+@@ -504,7 +504,7 @@ add_test(cuda_matrix.product ${TF_UTEST_DIR}/cuda/cuda_matrix -tc=product)
+
+ endif(${TF_ENABLE_CUDA})
+
+-endif(${TF_BUILD_TESTS})
++endif(TF_BUILD_TESTS)
+
+ # -----------------------------------------------------------------------------
+ # Benchmarking (enabled by TF_BUILD_BENCHMARKS)
diff --git a/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.4.0-fix-lib-path.patch b/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.4.0-fix-lib-path.patch
new file mode 100644
index 0000000000..6a99a0b051
--- /dev/null
+++ b/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.4.0-fix-lib-path.patch
@@ -0,0 +1,49 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 4b9c134..f49c398 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -16,6 +16,7 @@ option(TF_BUILD_TESTS "Enable build of tests" OFF)
+
+ # Include additional language check
+ include(CheckLanguage)
++include(GNUInstallDirs)
+
+ # Compiler vendors
+ ## g++
+@@ -166,8 +167,8 @@ target_link_libraries(
+ #set(CMAKE_CXX_EXTENSIONS OFF)
+
+ # installation path
+-set(TF_INC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/include")
+-set(TF_LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib")
++set(TF_INC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}")
++set(TF_LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
+ set(TF_UTEST_DIR ${PROJECT_SOURCE_DIR}/unittests)
+ set(TF_EXAMPLE_DIR ${PROJECT_SOURCE_DIR}/examples)
+ set(TF_BENCHMARK_DIR ${PROJECT_SOURCE_DIR}/benchmarks)
+@@ -799,7 +800,7 @@ install(TARGETS ${PROJECT_NAME} EXPORT ${PROJECT_NAME}Targets)
+ install(
+ EXPORT ${PROJECT_NAME}Targets
+ NAMESPACE ${PROJECT_NAME}::
+- DESTINATION ${TF_LIB_INSTALL_DIR}/cmake
++ DESTINATION ${TF_LIB_INSTALL_DIR}/cmake/${PROJECT_NAME}
+ )
+
+ # set up config
+@@ -808,7 +809,7 @@ include(CMakePackageConfigHelpers)
+ configure_package_config_file(
+ ${PROJECT_NAME}Config.cmake.in
+ ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
+- INSTALL_DESTINATION ${TF_LIB_INSTALL_DIR}/cmake
++ INSTALL_DESTINATION ${TF_LIB_INSTALL_DIR}/cmake/${PROJECT_NAME}
+ PATH_VARS TF_INC_INSTALL_DIR
+ )
+
+@@ -820,6 +821,6 @@ write_basic_package_version_file(
+ install(
+ FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
+ ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
+- DESTINATION ${TF_LIB_INSTALL_DIR}/cmake
++ DESTINATION ${TF_LIB_INSTALL_DIR}/cmake/${PROJECT_NAME}
+ )
+
diff --git a/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.4.0-fix-version-number.patch b/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.4.0-fix-version-number.patch
new file mode 100644
index 0000000000..5b53c318a0
--- /dev/null
+++ b/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.4.0-fix-version-number.patch
@@ -0,0 +1,13 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index f49c398..834b32e 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -6,7 +6,7 @@ MESSAGE(STATUS "CMAKE_ROOT: " ${CMAKE_ROOT})
+ set(CMAKE_VERBOSE_MAKEFILE ON)
+
+ # Project name
+-project(Cpp-Taskflow VERSION 2.3.1 LANGUAGES CXX)
++project(Cpp-Taskflow VERSION 2.4.0 LANGUAGES CXX)
+
+ # build options
+ option(TF_ENABLE_CUDA "Enables build of cuda code" OFF)
diff --git a/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.4.0-optional-tests-examples.patch b/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.4.0-optional-tests-examples.patch
new file mode 100644
index 0000000000..c1d8933655
--- /dev/null
+++ b/dev-cpp/cpp-taskflow/files/cpp-taskflow-2.4.0-optional-tests-examples.patch
@@ -0,0 +1,42 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 8debfa4..4b9c134 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -11,6 +11,8 @@ project(Cpp-Taskflow VERSION 2.3.1 LANGUAGES CXX)
+ # build options
+ option(TF_ENABLE_CUDA "Enables build of cuda code" OFF)
+ option(TF_BUILD_BENCHMARKS "Enables build of benchmarks" OFF)
++option(TF_BUILD_EXAMPLES "Enable build of examples" OFF)
++option(TF_BUILD_TESTS "Enable build of tests" OFF)
+
+ # Include additional language check
+ include(CheckLanguage)
+@@ -227,6 +229,7 @@ target_include_directories(${PROJECT_NAME} INTERFACE
+ # Example program
+ # -----------------------------------------------------------------------------
+
++if (TF_BUILD_EXAMPLES)
+ message(STATUS "Building examples ...")
+ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${TF_EXAMPLE_DIR})
+
+@@ -289,10 +292,12 @@ target_link_libraries(
+ device_property ${PROJECT_NAME} Threads::Threads tf::default_settings
+ )
+ endif(${TF_ENABLE_CUDA})
++endif(TF_BUILD_EXAMPLES)
+
+ # -----------------------------------------------------------------------------
+ # Unittest
+ # -----------------------------------------------------------------------------
++if (TF_BUILD_TESTS)
+ enable_testing()
+ message(STATUS "Building unit tests ...")
+ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${TF_UTEST_DIR})
+@@ -516,6 +521,7 @@ add_test(cuda_matrix.transpose ${TF_UTEST_DIR}/cuda/cuda_matrix -tc=transpose)
+ add_test(cuda_matrix.product ${TF_UTEST_DIR}/cuda/cuda_matrix -tc=product)
+
+ endif(${TF_ENABLE_CUDA})
++endif(TF_BUILD_TESTS)
+
+ # -----------------------------------------------------------------------------
+ # Benchmarking (enabled by TF_BUILD_BENCHMARKS)
diff --git a/dev-cpp/cpp-taskflow/files/cpp-taskflow-9999-fix-lib-path.patch b/dev-cpp/cpp-taskflow/files/cpp-taskflow-9999-fix-lib-path.patch
new file mode 100644
index 0000000000..4969debbb1
--- /dev/null
+++ b/dev-cpp/cpp-taskflow/files/cpp-taskflow-9999-fix-lib-path.patch
@@ -0,0 +1,49 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 0b483a5..83d9430 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -15,6 +15,7 @@ option(TF_BUILD_TESTS "Enable build of tests" OFF)
+
+ # Include additional language check
+ include(CheckLanguage)
++include(GNUInstallDirs)
+
+ # Compiler vendors
+ ## g++
+@@ -159,8 +160,8 @@ target_link_libraries(
+ #set(CMAKE_CXX_EXTENSIONS OFF)
+
+ # installation path
+-set(TF_INC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/include")
+-set(TF_LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib")
++set(TF_INC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}")
++set(TF_LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
+ set(TF_UTEST_DIR ${PROJECT_SOURCE_DIR}/unittests)
+ set(TF_EXAMPLE_DIR ${PROJECT_SOURCE_DIR}/examples)
+ set(TF_BENCHMARK_DIR ${PROJECT_SOURCE_DIR}/benchmarks)
+@@ -835,7 +836,7 @@ install(TARGETS ${PROJECT_NAME} EXPORT ${PROJECT_NAME}Targets)
+ install(
+ EXPORT ${PROJECT_NAME}Targets
+ NAMESPACE ${PROJECT_NAME}::
+- DESTINATION ${TF_LIB_INSTALL_DIR}/cmake
++ DESTINATION ${TF_LIB_INSTALL_DIR}/cmake/${PROJECT_NAME}
+ )
+
+ # set up config
+@@ -844,7 +845,7 @@ include(CMakePackageConfigHelpers)
+ configure_package_config_file(
+ ${PROJECT_NAME}Config.cmake.in
+ ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
+- INSTALL_DESTINATION ${TF_LIB_INSTALL_DIR}/cmake
++ INSTALL_DESTINATION ${TF_LIB_INSTALL_DIR}/cmake/${PROJECT_NAME}
+ PATH_VARS TF_INC_INSTALL_DIR
+ )
+
+@@ -856,6 +857,6 @@ write_basic_package_version_file(
+ install(
+ FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
+ ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
+- DESTINATION ${TF_LIB_INSTALL_DIR}/cmake
++ DESTINATION ${TF_LIB_INSTALL_DIR}/cmake/${PROJECT_NAME}
+ )
+
diff --git a/dev-cpp/cpp-taskflow/files/cpp-taskflow-9999-optional-tests-examples.patch b/dev-cpp/cpp-taskflow/files/cpp-taskflow-9999-optional-tests-examples.patch
new file mode 100644
index 0000000000..94b1dbcca7
--- /dev/null
+++ b/dev-cpp/cpp-taskflow/files/cpp-taskflow-9999-optional-tests-examples.patch
@@ -0,0 +1,42 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 281f47f..0b483a5 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -10,6 +10,8 @@ project(Cpp-Taskflow VERSION 2.4.0 LANGUAGES CXX)
+
+ # build options
+ option(TF_BUILD_BENCHMARKS "Enables build of benchmarks" OFF)
++option(TF_BUILD_EXAMPLES "Enable build of examples" OFF)
++option(TF_BUILD_TESTS "Enable build of tests" OFF)
+
+ # Include additional language check
+ include(CheckLanguage)
+@@ -219,6 +221,7 @@ target_include_directories(${PROJECT_NAME} INTERFACE
+ # Example program
+ # -----------------------------------------------------------------------------
+
++if (TF_BUILD_EXAMPLES)
+ message(STATUS "Building examples ...")
+ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${TF_EXAMPLE_DIR})
+
+@@ -291,10 +294,12 @@ target_link_libraries(
+ kmeans ${PROJECT_NAME} Threads::Threads tf::default_settings
+ )
+ endif(CMAKE_CUDA_COMPILER)
++endif(TF_BUILD_EXAMPLES)
+
+ # -----------------------------------------------------------------------------
+ # Unittest
+ # -----------------------------------------------------------------------------
++if (TF_BUILD_TESTS)
+ enable_testing()
+ message(STATUS "Building unit tests ...")
+ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${TF_UTEST_DIR})
+@@ -616,6 +621,7 @@ add_test(cuda_kmeans.1000.8C8G ${TF_UTEST_CUDA_KMEANS} -tc=kmeans.1000.8C8G)
+ add_test(cuda_kmeans.1000.16C16G ${TF_UTEST_CUDA_KMEANS} -tc=kmeans.1000.16C16G)
+
+ endif(CMAKE_CUDA_COMPILER)
++endif(TF_BUILD_TESTS)
+
+ # -----------------------------------------------------------------------------
+ # Benchmarking (enabled by TF_BUILD_BENCHMARKS)
diff --git a/dev-cpp/cpp-taskflow/metadata.xml b/dev-cpp/cpp-taskflow/metadata.xml
new file mode 100644
index 0000000000..23d1a01876
--- /dev/null
+++ b/dev-cpp/cpp-taskflow/metadata.xml
@@ -0,0 +1,15 @@
+
+
+
+
+ Cpp-Taskflow helps you quickly write parallel programs with high performance scalability and simultaneous high productivity.
+
+
+ m.santullo@posteo.net
+ Michele Santullo
+
+
+ cpp-taskflow/cpp-taskflow
+ https://github.com/cpp-taskflow/cpp-taskflow/issues
+
+
diff --git a/net-im/srain/Manifest b/net-im/srain/Manifest
new file mode 100644
index 0000000000..f56bd1ccae
--- /dev/null
+++ b/net-im/srain/Manifest
@@ -0,0 +1 @@
+DIST srain-1.1.0.tar.gz 941873 BLAKE2B db8039b4fa5f6ae31dba24cd6274608c994e85fffc237d12cdde7b4d3b47d94fd88d8ae4ace828dffb3eb76d6c1e05a797eabaca2caa31c09cb3f938fab33039 SHA512 0303d1734840c9af81f786da405617392570c2f34a9098fe7d1148f63642fb034877549477a8b52add8f1da7dc4ac38474a1cf3e42e51cc443b06b50c765b02a
diff --git a/net-im/srain/metadata.xml b/net-im/srain/metadata.xml
new file mode 100644
index 0000000000..29caf58803
--- /dev/null
+++ b/net-im/srain/metadata.xml
@@ -0,0 +1,7 @@
+
+
+
+
+ SrainApp/srain
+
+
diff --git a/net-im/srain/srain-1.1.0.ebuild b/net-im/srain/srain-1.1.0.ebuild
new file mode 100644
index 0000000000..68e4cac670
--- /dev/null
+++ b/net-im/srain/srain-1.1.0.ebuild
@@ -0,0 +1,38 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit eutils xdg
+
+DESCRIPTION="Modern, beautiful IRC client written in GTK+ 3"
+HOMEPAGE="https://github.com/SrainApp/srain"
+
+if [[ ${PV} == 9999 ]]; then
+ inherit git-r3
+ EGIT_REPO_URI="https://github.com/SrainApp/${PN}.git"
+ KEYWORDS=""
+else
+ MY_PV="${PV/_rc/rc}"
+ MY_P="${PN}-${MY_PV}"
+ SRC_URI="https://github.com/SrainApp/${PN}/archive/${MY_PV}.tar.gz -> ${MY_P}.tar.gz"
+ KEYWORDS="~amd64 ~arm ~arm64 ~x86"
+ S="${WORKDIR}/${MY_P}"
+fi
+
+LICENSE="GPL-3"
+SLOT="0"
+IUSE="debug"
+
+DEPEND="
+ dev-libs/libconfig
+ net-libs/libsoup
+"
+RDEPEND="${DEPEND}
+ >=x11-libs/gtk+-3.22.0
+ x11-libs/libnotify
+"
+
+src_configure(){
+ econf $(use_enable debug)
+}