4 files changed, 161 insertions, 0 deletions
diff --git a/sci-ml/FBGEMM/FBGEMM-2023.12.04.ebuild b/sci-ml/FBGEMM/FBGEMM-2023.12.04.ebuild
new file mode 100644
index 000000000000..a9034b8d893f
--- /dev/null
+++ b/sci-ml/FBGEMM/FBGEMM-2023.12.04.ebuild
@@ -0,0 +1,77 @@
+# Copyright 2022-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..13} )
+inherit python-any-r1 flag-o-matic cmake
+
+CommitId=dbc3157bf256f1339b3fa1fef2be89ac4078be0e
+
+DESCRIPTION="Facebook GEneral Matrix Multiplication"
+HOMEPAGE="https://github.com/pytorch/FBGEMM"
+SRC_URI="https://github.com/pytorch/${PN}/archive/${CommitId}.tar.gz
+	-> ${P}.tar.gz"
+
+S="${WORKDIR}"/${PN}-${CommitId}
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="amd64"
+IUSE="doc test"
+
+DEPEND="
+	>=dev-libs/asmjit-2022.07.02
+	dev-libs/cpuinfo
+"
+RDEPEND="${DEPEND}"
+BDEPEND="
+	test? ( dev-cpp/gtest )
+	doc? (
+		$(python_gen_any_dep '
+			dev-python/sphinx[${PYTHON_USEDEP}]
+			dev-python/sphinx-rtd-theme[${PYTHON_USEDEP}]
+			dev-python/breathe[${PYTHON_USEDEP}]
+		')
+	)
+	${PYTHON_DEPS}
+"
+RESTRICT="!test? ( test )"
+
+python_check_deps() {
+	if use doc; then
+		python_has_version \
+			"dev-python/sphinx[${PYTHON_USEDEP}]" \
+			"dev-python/sphinx-rtd-theme[${PYTHON_USEDEP}]" \
+			"dev-python/breathe[${PYTHON_USEDEP}]"
+	fi
+}
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2023.11.02-gentoo.patch
+)
+
+src_prepare() {
+	# Bug #855668
+	filter-lto
+
+	sed -i \
+		-e "/-Werror/d" \
+		CMakeLists.txt \
+		|| die
+	cmake_src_prepare
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DFBGEMM_LIBRARY_TYPE=shared
+		-DFBGEMM_BUILD_BENCHMARKS=OFF
+		-DFBGEMM_BUILD_DOCS=$(usex doc ON OFF)
+		-DFBGEMM_BUILD_TESTS=$(usex test ON OFF)
+	)
+	cmake_src_configure
+}
+
+src_test() {
+	OMP_STACKSIZE=512k cmake_src_test
+}
diff --git a/sci-ml/FBGEMM/Manifest b/sci-ml/FBGEMM/Manifest
new file mode 100644
index 000000000000..b7524cbfa0b0
--- /dev/null
+++ b/sci-ml/FBGEMM/Manifest
@@ -0,0 +1,4 @@
+AUX FBGEMM-2023.11.02-gentoo.patch 2162 BLAKE2B c585ac736dc1494820e778dbba951a340b01cc60d99fe5c308bb140d42a0af8f6c05273963e0dd99a7f1ad2dc9af854702bdadf5b2682c5a959a0e742d22c772 SHA512 296d4f15e4047e98a0ccf7a3d23a9661ca2be8f4599d4dd5541f6e728f181cf58e836f09382ef2ed69792d1c9da3146a57cbce9041f7a43ab5354e641551f9fd
+DIST FBGEMM-2023.12.04.tar.gz 1004231 BLAKE2B 930ae36f4761901e1b22d7ce4a341f051158a23646bd1f5309f6eb98c1ca483e8aa4e5a6cfc44ced702f73f84e3398c1439799457a98d0d8a009702e335d5c03 SHA512 3c786572b4a69af2a32b360711014469ded69be580d0079ba79ab81cbaa964aab51e5a189e24f0ec7dc93402d761167898918a0ea0f86d556cad4b99f5858d8c
+EBUILD FBGEMM-2023.12.04.ebuild 1499 BLAKE2B 132cc8471c4e3ae7fbd0188030b01c0124c95eb948d3dfbfc45d0592e1269204527e817264c17794f61a2412401e261385c03291507ad31d409735cd20098520 SHA512 596df7683f2d39829eada1a8a6ecd17cede5bbb8f18153be58f3b4999fd420167df184d9e17612bbf6475feca091445aa4b701eb0c56624be44a532eae35c193
+MISC metadata.xml 327 BLAKE2B 860b9c0ecb3b0029c855db0a0054590135f3bd6ec9dad20cdf433fc70c119354518eea50fdbb2a204eb8cc6621de23e6928a2f9ec961ac0c51fd9dae22fa8488 SHA512 3a0d5a69421a41e62ce134636025e0024010c1938ee35f7489d8d870d915a66cd526aa60d107a378dc4522ff71b7f10486e20867c8b424b1b47e458988ebff58
diff --git a/sci-ml/FBGEMM/files/FBGEMM-2023.11.02-gentoo.patch b/sci-ml/FBGEMM/files/FBGEMM-2023.11.02-gentoo.patch
new file mode 100644
index 000000000000..6ff4950211a2
--- /dev/null
+++ b/sci-ml/FBGEMM/files/FBGEMM-2023.11.02-gentoo.patch
@@ -0,0 +1,69 @@
+--- a/CMakeLists.txt	2022-05-21 13:13:50.806813151 +0200
++++ b/CMakeLists.txt	2022-05-21 13:16:46.448969453 +0200
+@@ -225,7 +225,7 @@
+ message(WARNING "CMAKE_CXX_FLAGS_RELEASE is ${CMAKE_CXX_FLAGS_RELEASE}")
+ message(WARNING "==========")
+ 
+-if(NOT TARGET asmjit)
++if(FALSE)
+   #Download asmjit from github if ASMJIT_SRC_DIR is not specified.
+   if(NOT DEFINED ASMJIT_SRC_DIR)
+     set(ASMJIT_SRC_DIR "${FBGEMM_SOURCE_DIR}/third_party/asmjit"
+@@ -254,7 +254,7 @@
+   endif()
+ endif()
+ 
+-if(NOT TARGET cpuinfo)
++if(FALSE)
+   #Download cpuinfo from github if CPUINFO_SOURCE_DIR is not specified.
+   if(NOT DEFINED CPUINFO_SOURCE_DIR)
+     set(CPUINFO_SOURCE_DIR "${FBGEMM_SOURCE_DIR}/third_party/cpuinfo"
+@@ -330,9 +330,6 @@
+ target_link_libraries(fbgemm
+   $<BUILD_INTERFACE:asmjit>
+   $<BUILD_INTERFACE:cpuinfo>)
+-add_dependencies(fbgemm
+-  asmjit
+-  cpuinfo)
+ 
+ if(OpenMP_FOUND)
+   target_link_libraries(fbgemm OpenMP::OpenMP_CXX)
+@@ -349,6 +346,9 @@
+   FILES ${FBGEMM_PUBLIC_HEADERS}
+   DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/fbgemm")
+ 
++install(FILES src/RefImplementations.h
++  DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/fbgemm/src")
++
+ install(
+   EXPORT fbgemmLibraryConfig
+   DESTINATION share/cmake/fbgemm
+--- a/test/CMakeLists.txt	2022-05-21 13:15:34.140135199 +0200
++++ b/test/CMakeLists.txt	2022-05-21 13:17:59.170813431 +0200
+@@ -8,7 +8,7 @@
+ set(CMAKE_C_EXTENSIONS OFF)
+ set(CMAKE_C_STANDARD_REQUIRED ON)
+ 
+-if(FBGEMM_BUILD_TESTS AND NOT TARGET gtest)
++if(FALSE)
+   #Download Googletest framework from github if
+   #GOOGLETEST_SOURCE_DIR is not specified.
+   if(NOT DEFINED GOOGLETEST_SOURCE_DIR)
+@@ -72,7 +72,6 @@
+     target_link_libraries(${TESTNAME} ${OpenMP_CXX_LIBRARIES})
+   endif()
+ 
+-  add_dependencies(${TESTNAME} gtest fbgemm)
+   add_test(${TESTNAME} ${TESTNAME})
+   set_target_properties(${TESTNAME} PROPERTIES FOLDER test)
+ endmacro()
+--- a/src/PackMatrix.cc	2022-05-24 08:19:00.639462626 +0200
++++ b/src/PackMatrix.cc	2022-05-24 08:27:59.127720548 +0200
+@@ -30,6 +30,7 @@
+ }
+ 
+ template <typename PT, typename inpType, typename accType>
++FBGEMM_API
+ int PackMatrix<PT, inpType, accType>::packedBufferSize(
+     int rows,
+     int cols,
diff --git a/sci-ml/FBGEMM/metadata.xml b/sci-ml/FBGEMM/metadata.xml
new file mode 100644
index 000000000000..b13a1c693d1f
--- /dev/null
+++ b/sci-ml/FBGEMM/metadata.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>tupone@gentoo.org</email>
+		<name>Tupone Alfredo</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">pytorch/FBGEMM</remote-id>
+	</upstream>
+</pkgmetadata>