Revert "sci-ml/ollama: treeclean, moved to ::gentoo"

This reverts commit a622cdd609.
Signed-off-by: David Roman <stkw0@disroot.org>

sci-ml/ollama/Manifest

@@ -0,0 +1,6 @@
+DIST ollama-0.18.0-deps.tar.xz 84650388 BLAKE2B b83450c77d4b769b712d7cae5949a0b72931b03d131ec857c3f22d4e9f498a86b916aebdd26176294aca1133b6a58cfa063f58af232fdd30fd7f741fdc95dc85 SHA512 705c67b746e55b56273880fddb2afa18f6ad4989db67d425aadfd695807503861c38bf76da9bfe7d4118ac625b8554501cfa28fc334c7c7f6e09b96a84805691
+DIST ollama-0.18.0.gh.tar.gz 23267563 BLAKE2B d9c9ee5ea09dd77bb7500b57d2383c6c1e572a643454fd35acec04bf034d617b1a796e6df3b0caba2b58927acfadcded0b89a7e7f1804be5645e74c8b1981019 SHA512 f4a0accadb5e4dd6a20c4ea82fc246da3e4fb618d975555705fe6b577abc4f66f9e542e55a98fd41e96fcfd3fd6cfc219251bec5f98439d495f4e5d2121fe164
+DIST ollama-0.20.3-deps.tar.xz 84650388 BLAKE2B b83450c77d4b769b712d7cae5949a0b72931b03d131ec857c3f22d4e9f498a86b916aebdd26176294aca1133b6a58cfa063f58af232fdd30fd7f741fdc95dc85 SHA512 705c67b746e55b56273880fddb2afa18f6ad4989db67d425aadfd695807503861c38bf76da9bfe7d4118ac625b8554501cfa28fc334c7c7f6e09b96a84805691
+DIST ollama-0.20.3.gh.tar.gz 26448858 BLAKE2B c8cd751cb1a840e1fa9b6337529b192bf1b235fdeb8959ef2dd881e503bcdcc63cfb2b61c2e31851c5992b0a6c8d204e6771ce0e993014b5df08e6122ffa641c SHA512 a722f677f296ec86296660f72798ca752e1389280febb6238d88c50a7f5711df67d7322e7effb39998e37672cd9d27fe587e26fdc265d29c7bb1f9b32fe2d5f1
+DIST ollama-0.21.2-deps.tar.xz 84650388 BLAKE2B b83450c77d4b769b712d7cae5949a0b72931b03d131ec857c3f22d4e9f498a86b916aebdd26176294aca1133b6a58cfa063f58af232fdd30fd7f741fdc95dc85 SHA512 705c67b746e55b56273880fddb2afa18f6ad4989db67d425aadfd695807503861c38bf76da9bfe7d4118ac625b8554501cfa28fc334c7c7f6e09b96a84805691
+DIST ollama-0.21.2.gh.tar.gz 27896062 BLAKE2B e02491c37d84aae6d88c48e9d631760d00327f2e0f2ef33baf24722e093aaaecf9e33e959e8548061f3350b12886bc6dcec5a9aea40e99f13a2577900981af89 SHA512 80493313eccd994a02db6bc2330594790f66466fdf9736802528dc813e1b70402d273acd63249112ab9b97b0e610a25469f69daff08448fa946c344bd45ad334

sci-ml/ollama/files/ollama-0.18.0-make-installing-runtime-deps-optional.patch

@@ -0,0 +1,134 @@
+From 7367444df7e44434569708b13ddf26b159e3ba50 Mon Sep 17 00:00:00 2001
+From: Paul Zander <negril.nx+gentoo@gmail.com>
+Date: Tue, 17 Feb 2026 12:52:29 +0100
+Subject: [PATCH] make installing runtime deps optional
+
+Signed-off-by: Paul Zander <negril.nx+gentoo@gmail.com>
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 7d53531b..ce7376d8 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -78,6 +78,8 @@ set(GGML_VERSION_MINOR 0)
+ set(GGML_VERSION_PATCH 0)
+ set(GGML_VERSION "${GGML_VERSION_MAJOR}.${GGML_VERSION_MINOR}.${GGML_VERSION_PATCH}")
+ 
++option(OLLAMA_INSTALL_RUNTIME_DEPS "Install the dependencies of library as well" ON)
++
+ set(GGML_CPU ON)
+ add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/ml/backend/ggml/ggml/src)
+ set_property(TARGET ggml PROPERTY EXCLUDE_FROM_ALL TRUE)
+@@ -88,12 +90,17 @@ if(NOT CPU_VARIANTS)
+ endif()
+ 
+ install(TARGETS ggml-base ${CPU_VARIANTS}
+-    RUNTIME_DEPENDENCIES
+-        PRE_EXCLUDE_REGEXES ".*"
+-    RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CPU
++    RUNTIME_DEPENDENCY_SET base
+     LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CPU
+     FRAMEWORK DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CPU
+ )
++if(OLLAMA_INSTALL_RUNTIME_DEPS)
++install(RUNTIME_DEPENDENCY_SET base
++    PRE_EXCLUDE_REGEXES ".*"
++    RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CPU
++    LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CPU
++)
++endif()
+ 
+ check_language(CUDA)
+ if(CMAKE_CUDA_COMPILER)
+@@ -104,13 +111,18 @@ if(CMAKE_CUDA_COMPILER)
+     find_package(CUDAToolkit)
+     add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/ml/backend/ggml/ggml/src/ggml-cuda)
+     install(TARGETS ggml-cuda
+-        RUNTIME_DEPENDENCIES
+-            DIRECTORIES ${CUDAToolkit_BIN_DIR} ${CUDAToolkit_BIN_DIR}/x64 ${CUDAToolkit_LIBRARY_DIR}
+-            PRE_INCLUDE_REGEXES cublas cublasLt cudart
+-            PRE_EXCLUDE_REGEXES ".*"
++        RUNTIME_DEPENDENCY_SET cuda
++        LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CUDA
++    )
++    if(OLLAMA_INSTALL_RUNTIME_DEPS)
++    install(RUNTIME_DEPENDENCY_SET cuda
++        DIRECTORIES ${CUDAToolkit_BIN_DIR} ${CUDAToolkit_BIN_DIR}/x64 ${CUDAToolkit_LIBRARY_DIR}
++        PRE_INCLUDE_REGEXES cublas cublasLt cudart
++        PRE_EXCLUDE_REGEXES ".*"
+         RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CUDA
+         LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CUDA
+     )
++    endif()
+ endif()
+ 
+ set(WINDOWS_AMDGPU_TARGETS_EXCLUDE_REGEX "^gfx(908|90a|1200|1201):xnack[+-]$"
+@@ -143,9 +155,9 @@ if(CMAKE_HIP_COMPILER)
+ 
+         install(TARGETS ggml-hip
+             RUNTIME_DEPENDENCY_SET rocm
+-            RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT HIP
+             LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT HIP
+         )
++        if(OLLAMA_INSTALL_RUNTIME_DEPS)
+         install(RUNTIME_DEPENDENCY_SET rocm
+                 DIRECTORIES ${HIP_BIN_INSTALL_DIR} ${HIP_LIB_INSTALL_DIR}
+                 PRE_INCLUDE_REGEXES hipblas rocblas amdhip64 rocsolver amd_comgr hsa-runtime64 rocsparse tinfo rocprofiler-register drm drm_amdgpu numa elf
+@@ -161,6 +173,7 @@ if(CMAKE_HIP_COMPILER)
+                 break()
+             endif()
+         endforeach()
++        endif()
+     endif()
+ endif()
+ 
+@@ -169,12 +182,17 @@ if(NOT APPLE)
+     if(Vulkan_FOUND)
+         add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/ml/backend/ggml/ggml/src/ggml-vulkan)
+         install(TARGETS ggml-vulkan
+-            RUNTIME_DEPENDENCIES
+-                PRE_INCLUDE_REGEXES vulkan
+-                PRE_EXCLUDE_REGEXES ".*"
++            RUNTIME_DEPENDENCY_SET vulkan
++            LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT Vulkan
++        )
++        if(OLLAMA_INSTALL_RUNTIME_DEPS)
++        install(RUNTIME_DEPENDENCY_SET vulkan
++            PRE_INCLUDE_REGEXES vulkan
++            PRE_EXCLUDE_REGEXES ".*"
+             RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT Vulkan
+             LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT Vulkan
+         )
++        endif()
+     endif()
+ endif()
+ 
+@@ -188,15 +206,21 @@ if(MLX_ENGINE)
+     find_package(CUDAToolkit)
+ 
+     install(TARGETS mlx mlxc
+-        RUNTIME_DEPENDENCIES
+-            DIRECTORIES ${MLX_RUNTIME_DIRS}
+-            PRE_INCLUDE_REGEXES ${MLX_INCLUDE_REGEXES}
+-            PRE_EXCLUDE_REGEXES ".*"
+-        RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT MLX
++        RUNTIME_DEPENDENCY_SET mlx
+         LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT MLX
+         FRAMEWORK DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT MLX
+     )
+ 
++    if(OLLAMA_INSTALL_RUNTIME_DEPS)
++    install(RUNTIME_DEPENDENCY_SET mlx
++        DIRECTORIES ${MLX_RUNTIME_DIRS}
++        PRE_INCLUDE_REGEXES ${MLX_INCLUDE_REGEXES}
++        PRE_EXCLUDE_REGEXES ".*"
++        RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT MLX
++        LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT MLX
++    )
++    endif()
++
+     # Install the Metal library for macOS arm64 (must be colocated with the binary)
+     # Metal backend is only built for arm64, not x86_64
+     if(APPLE AND CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64")
+-- 
+2.53.0
+

sci-ml/ollama/files/ollama-9999-make-installing-runtime-deps-optional.patch

@@ -0,0 +1,120 @@
+From dc76193516672ab84fc0aed1d5b3076ce3f334e7 Mon Sep 17 00:00:00 2001
+From: Paul Zander <negril.nx+gentoo@gmail.com>
+Date: Tue, 17 Feb 2026 12:52:29 +0100
+Subject: make installing runtime deps optional
+
+Signed-off-by: Paul Zander <negril.nx+gentoo@gmail.com>
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 40c22f4b..375ddff5 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -84,6 +84,8 @@ set(GGML_VERSION_MINOR 0)
+ set(GGML_VERSION_PATCH 0)
+ set(GGML_VERSION "${GGML_VERSION_MAJOR}.${GGML_VERSION_MINOR}.${GGML_VERSION_PATCH}")
+ 
++option(OLLAMA_INSTALL_RUNTIME_DEPS "Install the dependencies of library as well" ON)
++
+ set(GGML_CPU ON)
+ add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/ml/backend/ggml/ggml/src)
+ set_property(TARGET ggml PROPERTY EXCLUDE_FROM_ALL TRUE)
+@@ -102,12 +104,16 @@ foreach(variant ${CPU_VARIANTS})
+ endforeach()
+ 
+ install(TARGETS ggml-base ${CPU_VARIANTS}
+-    RUNTIME_DEPENDENCIES
+-        PRE_EXCLUDE_REGEXES ".*"
++    RUNTIME_DEPENDENCY_SET base
+     RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CPU
+     LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CPU
+     FRAMEWORK DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CPU
+ )
++if(OLLAMA_INSTALL_RUNTIME_DEPS)
++install(RUNTIME_DEPENDENCY_SET base
++        PRE_EXCLUDE_REGEXES ".*"
++)
++endif()
+ 
+ check_language(CUDA)
+ if(CMAKE_CUDA_COMPILER)
+@@ -119,13 +125,18 @@ if(CMAKE_CUDA_COMPILER)
+     add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/ml/backend/ggml/ggml/src/ggml-cuda)
+     target_include_directories(ggml-cuda PRIVATE ${GGML_INCLUDE_DIRS})
+     install(TARGETS ggml-cuda
++        RUNTIME_DEPENDENCY_SET cuda
++        RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CUDA
++        LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CUDA
++    )
++    if(OLLAMA_INSTALL_RUNTIME_DEPS)
++    install(RUNTIME_DEPENDENCY_SET cuda
+         RUNTIME_DEPENDENCIES
+             DIRECTORIES ${CUDAToolkit_BIN_DIR} ${CUDAToolkit_BIN_DIR}/x64 ${CUDAToolkit_LIBRARY_DIR}
+             PRE_INCLUDE_REGEXES cublas cublasLt cudart
+             PRE_EXCLUDE_REGEXES ".*"
+-        RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CUDA
+-        LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT CUDA
+     )
++    endif()
+ endif()
+ 
+ set(WINDOWS_AMDGPU_TARGETS_EXCLUDE_REGEX "^gfx(908|90a|1200|1201):xnack[+-]$"
+@@ -162,13 +173,12 @@ if(CMAKE_HIP_COMPILER)
+             RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT HIP
+             LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT HIP
+         )
++        if(OLLAMA_INSTALL_RUNTIME_DEPS)
+         install(RUNTIME_DEPENDENCY_SET rocm
+                 DIRECTORIES ${HIP_BIN_INSTALL_DIR} ${HIP_LIB_INSTALL_DIR}
+                 PRE_INCLUDE_REGEXES hipblas rocblas amdhip64 rocsolver amd_comgr hsa-runtime64 rocsparse tinfo rocprofiler-register roctx64 rocroller drm drm_amdgpu numa elf
+                 PRE_EXCLUDE_REGEXES ".*"
+                 POST_EXCLUDE_REGEXES "system32"
+-            RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT HIP
+-            LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT HIP
+         )
+ 
+         foreach(HIP_LIB_BIN_INSTALL_DIR IN ITEMS ${HIP_BIN_INSTALL_DIR} ${HIP_LIB_INSTALL_DIR})
+@@ -177,6 +187,7 @@ if(CMAKE_HIP_COMPILER)
+                 break()
+             endif()
+         endforeach()
++        endif()
+     endif()
+ endif()
+ 
+@@ -186,12 +197,16 @@ if(NOT APPLE)
+         add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/ml/backend/ggml/ggml/src/ggml-vulkan)
+         target_include_directories(ggml-vulkan PRIVATE ${GGML_INCLUDE_DIRS})
+         install(TARGETS ggml-vulkan
+-            RUNTIME_DEPENDENCIES
+-                PRE_INCLUDE_REGEXES vulkan
+-                PRE_EXCLUDE_REGEXES ".*"
++            RUNTIME_DEPENDENCY_SET vulkan
+             RUNTIME DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT Vulkan
+             LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT Vulkan
+         )
++        if(OLLAMA_INSTALL_RUNTIME_DEPS)
++        install(RUNTIME_DEPENDENCY_SET vulkan
++                PRE_INCLUDE_REGEXES vulkan
++                PRE_EXCLUDE_REGEXES ".*"
++        )
++        endif()
+     endif()
+ endif()
+ 
+@@ -236,6 +251,7 @@ if(MLX_ENGINE)
+         LIBRARY DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT MLX
+         FRAMEWORK DESTINATION ${OLLAMA_INSTALL_DIR} COMPONENT MLX
+     )
++    if(OLLAMA_INSTALL_RUNTIME_DEPS)
+     install(RUNTIME_DEPENDENCY_SET mlx_runtime_deps
+         DIRECTORIES ${MLX_RUNTIME_DIRS}
+         PRE_INCLUDE_REGEXES ${MLX_INCLUDE_REGEXES}
+@@ -375,4 +391,5 @@ if(MLX_ENGINE)
+                 COMPONENT MLX_VENDOR)
+         endif()
+     endif()
++    endif()
+ endif()
+-- 
+2.54.0
+

sci-ml/ollama/files/ollama-9999-use-GNUInstallDirs.patch

@@ -0,0 +1,26 @@
+From 3e250053458fa33c97023ff8943e8c5daa4beeca Mon Sep 17 00:00:00 2001
+From: Paul Zander <negril.nx+gentoo@gmail.com>
+Date: Mon, 31 Mar 2025 18:07:47 +0200
+Subject: [PATCH] use GNUInstallDirs
+
+Signed-off-by: Paul Zander <negril.nx+gentoo@gmail.com>
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 9e107fe..79407ea 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -35,8 +35,9 @@ if (CMAKE_OSX_ARCHITECTURES MATCHES "x86_64")
+     set(CMAKE_INSTALL_RPATH "@loader_path")
+ endif()
+ 
+-set(OLLAMA_BUILD_DIR ${CMAKE_BINARY_DIR}/lib/ollama)
+-set(OLLAMA_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/lib/ollama/${OLLAMA_RUNNER_DIR})
++include(GNUInstallDirs)
++set(OLLAMA_BUILD_DIR ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}/ollama)
++set(OLLAMA_INSTALL_DIR ${CMAKE_INSTALL_FULL_LIBDIR}/ollama/${OLLAMA_RUNNER_DIR})
+ 
+ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY         ${OLLAMA_BUILD_DIR})
+ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG   ${OLLAMA_BUILD_DIR})
+-- 
+2.49.0
+

sci-ml/ollama/files/ollama.confd

@@ -0,0 +1,11 @@
+# Ollama allows cross-origin requests from 127.0.0.1 and 0.0.0.0 by default.
+# Additional origins can be configured with OLLAMA_ORIGINS.
+# export OLLAMA_ORIGINS="<ip>"
+
+# log to syslog
+# output_logger="logger -t \"$RC_SVCNAME\" -p daemon.info"
+# error_logger="logger -t \"$RC_SVCNAME\" -p daemon.err"
+
+# log to file
+output_log="/var/log/ollama/ollama.log"
+error_log="/var/log/ollama/ollama.log"

sci-ml/ollama/files/ollama.init

@@ -0,0 +1,9 @@
+#!/sbin/openrc-run
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License, v2
+
+supervisor=supervise-daemon
+description="Ollama Service"
+command="/usr/bin/ollama"
+command_args="serve"
+command_user="ollama:ollama"

sci-ml/ollama/files/ollama.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=Ollama Service
+After=network-online.target
+
+[Service]
+ExecStart=/usr/bin/ollama serve
+User=ollama
+Group=ollama
+Restart=always
+RestartSec=3
+Environment="PATH=$PATH"
+
+[Install]
+WantedBy=multi-user.target

sci-ml/ollama/metadata.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>negril.nx+gentoo@gmail.com</email>
+		<name>Paul Zander</name>
+	</maintainer>
+	<use>
+		<flag name="blis">Use <pkg>sci-libs/blis</pkg> as blas provider</flag>
+		<flag name="cuda">Enable NVIDIA CUDA support</flag>
+		<flag name="flexiblas">Use <pkg>sci-libs/flexiblas</pkg> as blas provider</flag>
+		<flag name="mkl">Use <pkg>sci-libs/mkl</pkg> for blas, lapack and sparse blas routines</flag>
+		<flag name="openblas">Use <pkg>sci-libs/openblas</pkg> as blas provider</flag>
+		<flag name="rocm">Enable ROCm gpu computing support</flag>
+	</use>
+	<upstream>
+		<remote-id type="github">ollama/ollama</remote-id>
+	</upstream>
+</pkgmetadata>

sci-ml/ollama/ollama-0.18.0.ebuild

@@ -0,0 +1,416 @@
+# Copyright 2024-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# supports ROCM/HIP >=5.5, but we define 6.1 due to the eclass
+ROCM_VERSION="6.1"
+inherit cuda rocm
+inherit cmake
+inherit flag-o-matic go-module linux-info systemd toolchain-funcs
+
+DESCRIPTION="Get up and running with Llama 3, Mistral, Gemma, and other language models."
+HOMEPAGE="https://ollama.com"
+
+if [[ ${PV} == *9999* ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/ollama/ollama.git"
+else
+	MY_PV="${PV/_rc/-rc}"
+	MY_P="${PN}-${MY_PV}"
+	SRC_URI="
+		https://github.com/ollama/${PN}/archive/refs/tags/v${MY_PV}.tar.gz -> ${MY_P}.gh.tar.gz
+		https://github.com/gentoo-golang-dist/${PN}/releases/download/v${MY_PV}/${MY_P}-deps.tar.xz
+	"
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="~amd64"
+	fi
+fi
+
+LICENSE="MIT"
+SLOT="0"
+
+IUSE="cuda rocm vulkan"
+# IUSE+=" opencl"
+
+BLAS_BACKENDS="blis mkl openblas"
+BLAS_REQUIRED_USE="blas? ( ?? ( ${BLAS_BACKENDS} ) )"
+
+IUSE+=" blas flexiblas ${BLAS_BACKENDS}"
+REQUIRED_USE+=" ${BLAS_REQUIRED_USE}"
+
+declare -rgA CPU_FEATURES=(
+	[AVX2]="x86"
+	[AVX512F]="x86"
+	[AVX512_VBMI]="x86;avx512vbmi"
+	[AVX512_VNNI]="x86"
+	[AVX]="x86"
+	[AVX_VNNI]="x86"
+	[BMI2]="x86"
+	[F16C]="x86"
+	[FMA]="x86;fma3"
+	[SSE42]="x86;sse4_2"
+)
+add_cpu_features_use() {
+	for flag in "${!CPU_FEATURES[@]}"; do
+		IFS=$';' read -rd '' arch use < <(printf %s "${CPU_FEATURES[${flag}]}")
+		IUSE+=" cpu_flags_${arch}_${use:-${flag,,}}"
+	done
+}
+add_cpu_features_use
+
+RESTRICT="mirror test"
+
+# FindBLAS.cmake
+# If Fortran is an enabled compiler it sets BLAS_mkl_THREADING to gnu. -> sci-libs/mkl[gnu-openmp]
+# If Fortran is not an enabled compiler it sets BLAS_mkl_THREADING to intel. -> sci-libs/mkl[llvm-openmp]
+COMMON_DEPEND="
+	blas? (
+		blis? (
+			sci-libs/blis:=
+		)
+		flexiblas? (
+			sci-libs/flexiblas[blis?,mkl?,openblas?]
+		)
+		mkl? (
+			sci-libs/mkl[llvm-openmp]
+		)
+		openblas? (
+			sci-libs/openblas
+		)
+		virtual/blas[flexiblas=]
+	)
+	cuda? (
+		dev-util/nvidia-cuda-toolkit:=
+	)
+	rocm? (
+		>=dev-util/hip-${ROCM_VERSION}:=
+		>=sci-libs/hipBLAS-${ROCM_VERSION}:=
+		>=sci-libs/rocBLAS-${ROCM_VERSION}:=
+	)
+"
+
+DEPEND="
+	${COMMON_DEPEND}
+	>=dev-lang/go-1.23.4
+"
+BDEPEND="
+	vulkan? (
+		dev-util/vulkan-headers
+		media-libs/shaderc
+	)
+"
+
+RDEPEND="
+	${COMMON_DEPEND}
+	acct-group/${PN}
+	>=acct-user/${PN}-3[cuda?]
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-9999-use-GNUInstallDirs.patch"
+	"${FILESDIR}/${PN}-0.18.0-make-installing-runtime-deps-optional.patch"
+)
+
+pkg_pretend() {
+	if use amd64; then
+		if use cpu_flags_x86_f16c && use cpu_flags_x86_avx2 && use cpu_flags_x86_fma3 && ! use cpu_flags_x86_bmi2; then
+			ewarn
+			ewarn "CPU_FLAGS_X86: bmi2 not enabled."
+			ewarn "  Not building haswell runner."
+			ewarn "  Not building skylakex runner."
+			ewarn "  Not building icelake runner."
+			ewarn "  Not building alderlake runner."
+			ewarn
+			if grep bmi2 /proc/cpuinfo > /dev/null; then
+				ewarn "bmi2 found in /proc/cpuinfo"
+				ewarn
+			fi
+		fi
+	fi
+}
+
+pkg_setup() {
+	if use rocm; then
+		linux-info_pkg_setup
+		if linux-info_get_any_version && linux_config_exists; then
+			if ! linux_chkconfig_present HSA_AMD_SVM; then
+				ewarn "To use ROCm/HIP, you need to have HSA_AMD_SVM option enabled in your kernel."
+			fi
+		fi
+	fi
+}
+
+src_unpack() {
+	# Already filter lto flags for ROCM
+	# 963401
+	if use rocm; then
+		# copied from _rocm_strip_unsupported_flags
+		strip-unsupported-flags
+		export CXXFLAGS="$(test-flags-HIPCXX "${CXXFLAGS}")"
+	fi
+
+	if [[ "${PV}" == *9999* ]]; then
+		git-r3_src_unpack
+		go-module_live_vendor
+	else
+		go-module_src_unpack
+	fi
+}
+
+src_prepare() {
+	cmake_src_prepare
+
+	sed \
+		-e "/set(GGML_CCACHE/s/ON/OFF/g" \
+		-i CMakeLists.txt || die "Disable CCACHE sed failed"
+
+	# TODO see src_unpack?
+	sed \
+		-e "s/ -O3//g" \
+		-i \
+			ml/backend/ggml/ggml/src/ggml-cpu/cpu.go \
+		|| die "-O3 sed failed"
+
+	# grep -Rl -e 'lib/ollama' -e '"..", "lib"'  --include '*.go'
+	sed \
+		-e "s/\"..\", \"lib\"/\"..\", \"$(get_libdir)\"/" \
+		-e "s#\"lib/ollama\"#\"$(get_libdir)/ollama\"#" \
+		-i \
+			ml/backend/ggml/ggml/src/ggml.go \
+			ml/path.go \
+		|| die "libdir sed failed"
+
+	if use amd64; then
+		if
+			! use cpu_flags_x86_sse4_2; then
+			sed -e "/ggml_add_cpu_backend_variant(sse42/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx; then
+			sed -e "/ggml_add_cpu_backend_variant(sandybridge/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3; then
+			sed -e "/ggml_add_cpu_backend_variant(haswell/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX F16C AVX2 BMI2 FMA)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3 ||
+			! use cpu_flags_x86_avx512f; then
+			sed -e "/ggml_add_cpu_backend_variant(skylakex/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt ||  die
+			# SSE42 AVX F16C AVX2 BMI2 FMA AVX512)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3 ||
+			! use cpu_flags_x86_avx512f ||
+			! use cpu_flags_x86_avx512vbmi ||
+			! use cpu_flags_x86_avx512_vnni; then
+			sed -e "/ggml_add_cpu_backend_variant(icelake/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX F16C AVX2 BMI2 FMA AVX512 AVX512_VBMI AVX512_VNNI)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3 ||
+			! use cpu_flags_x86_avx_vnni; then
+			sed -e "/ggml_add_cpu_backend_variant(alderlake/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX F16C AVX2 BMI2 FMA AVX_VNNI)
+		fi
+
+		# ml/backend/ggml/ggml/src/CMakeLists.txt
+	fi
+
+	if use cuda; then
+		cuda_src_prepare
+	fi
+
+	if use rocm; then
+		# --hip-version gets appended to the compile flags which isn't a known flag.
+		# This causes rocm builds to fail because -Wunused-command-line-argument is turned on.
+		# Use nuclear option to fix this.
+		# Disable -Werror's from go modules.
+		find "${S}" -name ".go" -exec sed -i "s/ -Werror / /g" {} + || die
+	fi
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DOLLAMA_INSTALL_RUNTIME_DEPS="no"
+		-DGGML_CCACHE="no"
+
+		# backends end up in /usr/bin otherwise
+		-DGGML_BACKEND_DL="yes"
+		# TODO causes duplicate install warning but breaks detection otherwise ollama/issues/13614
+		-DGGML_BACKEND_DIR="${EPREFIX}/usr/$(get_libdir)/${PN}"
+
+		# -DGGML_CPU="yes"
+		-DGGML_BLAS="$(usex blas)"
+
+		# -DGGML_CUDA="$(usex cuda)"
+		# -DGGML_HIP="$(usex rocm)"
+
+		# -DGGML_METAL="yes" # apple
+		# missing from ml/backend/ggml/ggml/src/
+		# -DGGML_CANN="yes"
+		# -DGGML_MUSA="yes"
+		# -DGGML_RPC="yes"
+		# -DGGML_SYCL="yes"
+		# -DGGML_KOMPUTE="$(usex kompute)"
+		# -DGGML_OPENCL="$(usex opencl)"
+		# -DGGML_VULKAN="$(usex vulkan)"
+		"$(cmake_use_find_package vulkan Vulkan)"
+	)
+
+	if tc-is-lto ; then
+		mycmakeargs+=(
+			-DGGML_LTO="yes"
+		)
+	fi
+
+	if use blas; then
+		if use flexiblas ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="FlexiBLAS"
+			)
+		elif use blis ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="FLAME"
+			)
+		elif use mkl ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="Intel10_64lp"
+			)
+		# elif use nvhpc ; then
+		# 	mycmakeargs+=(
+		# 		-DGGML_BLAS_VENDOR="NVHPC"
+		# 	)
+		elif use openblas ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="OpenBLAS"
+			)
+		else
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="Generic"
+			)
+		fi
+	fi
+
+	if use cuda; then
+		local -x CUDAHOSTCXX CUDAHOSTLD
+		CUDAHOSTCXX="$(cuda_gccdir)"
+		CUDAHOSTLD="$(tc-getCXX)"
+
+		# default to all-major for now until cuda.eclass is updated
+		if [[ ! -v CUDAARCHS ]]; then
+			local CUDAARCHS="all-major"
+		fi
+
+		mycmakeargs+=(
+			-DCMAKE_CUDA_ARCHITECTURES="${CUDAARCHS}"
+		)
+
+		cuda_add_sandbox -w
+		addpredict "/dev/char/"
+	else
+		mycmakeargs+=(
+			-DCMAKE_CUDA_COMPILER="NOTFOUND"
+		)
+	fi
+
+	if use rocm; then
+		mycmakeargs+=(
+			-DCMAKE_HIP_ARCHITECTURES="$(get_amdgpu_flags)"
+			-DCMAKE_HIP_PLATFORM="amd"
+			# ollama doesn't honor the default cmake options
+			-DAMDGPU_TARGETS="$(get_amdgpu_flags)"
+		)
+
+		local -x HIP_PATH="${ESYSROOT}/usr"
+	else
+		mycmakeargs+=(
+			-DCMAKE_HIP_COMPILER="NOTFOUND"
+		)
+	fi
+
+	cmake_src_configure
+}
+
+src_compile() {
+	# export version information
+	# https://github.com/gentoo/guru/pull/205
+	# https://forums.gentoo.org/viewtopic-p-8831646.html
+	local VERSION
+	if [[ "${PV}" == *9999* ]]; then
+		VERSION="$(
+			git describe --tags --first-parent --abbrev=7 --long --dirty --always \
+			| sed -e "s/^v//g"
+		)"
+	else
+		VERSION="${PVR}"
+	fi
+	local EXTRA_GOFLAGS_LD=(
+		# "-w" # disable DWARF generation
+		# "-s" # disable symbol table
+		"-X=github.com/ollama/ollama/version.Version=${VERSION}"
+		"-X=github.com/ollama/ollama/server.mode=release"
+	)
+	GOFLAGS+=" '-ldflags=${EXTRA_GOFLAGS_LD[*]}'"
+
+	ego build
+
+	cmake_src_compile
+}
+
+src_install() {
+	dobin ollama
+
+	cmake_src_install
+
+	newinitd "${FILESDIR}/ollama.init" "${PN}"
+	newconfd "${FILESDIR}/ollama.confd" "${PN}"
+
+	systemd_dounit "${FILESDIR}/ollama.service"
+}
+
+pkg_preinst() {
+	keepdir /var/log/ollama
+	fperms 750 /var/log/ollama
+	fowners "${PN}:${PN}" /var/log/ollama
+}
+
+pkg_postinst() {
+	if [[ -z ${REPLACING_VERSIONS} ]] ; then
+		einfo "Quick guide:"
+		einfo "\tollama serve"
+		einfo "\tollama run llama3:70b"
+		einfo
+		einfo "See available models at https://ollama.com/library"
+	fi
+
+	if use cuda ; then
+		einfo "When using cuda the user running ${PN} has to be in the video group or it won't detect devices."
+		einfo "The ebuild ensures this for user ${PN} via acct-user/${PN}[cuda]"
+	fi
+}

sci-ml/ollama/ollama-0.20.3.ebuild

@@ -0,0 +1,422 @@
+# Copyright 2024-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# supports ROCM/HIP >=5.5, but we define 6.1 due to the eclass
+ROCM_VERSION="6.1"
+inherit cuda rocm
+inherit cmake
+inherit flag-o-matic go-module linux-info systemd toolchain-funcs
+
+DESCRIPTION="Get up and running with Llama 3, Mistral, Gemma, and other language models."
+HOMEPAGE="https://ollama.com"
+
+if [[ ${PV} == *9999* ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/ollama/ollama.git"
+else
+	MY_PV="${PV/_rc/-rc}"
+	MY_P="${PN}-${MY_PV}"
+	SRC_URI="
+		https://github.com/ollama/${PN}/archive/refs/tags/v${MY_PV}.tar.gz -> ${MY_P}.gh.tar.gz
+		https://github.com/gentoo-golang-dist/${PN}/releases/download/v${MY_PV}/${MY_P}-deps.tar.xz
+	"
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="~amd64"
+	fi
+fi
+
+LICENSE="MIT"
+SLOT="0"
+
+IUSE="cuda rocm vulkan"
+# IUSE+=" opencl"
+
+BLAS_BACKENDS="blis mkl openblas"
+BLAS_REQUIRED_USE="blas? ( ?? ( ${BLAS_BACKENDS} ) )"
+
+IUSE+=" blas flexiblas ${BLAS_BACKENDS}"
+REQUIRED_USE+=" ${BLAS_REQUIRED_USE}"
+
+declare -rgA CPU_FEATURES=(
+	[AVX2]="x86"
+	[AVX512F]="x86"
+	[AVX512_VBMI]="x86;avx512vbmi"
+	[AVX512_VNNI]="x86"
+	[AVX]="x86"
+	[AVX_VNNI]="x86"
+	[BMI2]="x86"
+	[F16C]="x86"
+	[FMA]="x86;fma3"
+	[SSE42]="x86;sse4_2"
+)
+add_cpu_features_use() {
+	for flag in "${!CPU_FEATURES[@]}"; do
+		IFS=$';' read -rd '' arch use < <(printf %s "${CPU_FEATURES[${flag}]}")
+		IUSE+=" cpu_flags_${arch}_${use:-${flag,,}}"
+	done
+}
+add_cpu_features_use
+
+RESTRICT="mirror test"
+
+# FindBLAS.cmake
+# If Fortran is an enabled compiler it sets BLAS_mkl_THREADING to gnu. -> sci-libs/mkl[gnu-openmp]
+# If Fortran is not an enabled compiler it sets BLAS_mkl_THREADING to intel. -> sci-libs/mkl[llvm-openmp]
+COMMON_DEPEND="
+	blas? (
+		blis? (
+			sci-libs/blis:=
+		)
+		flexiblas? (
+			sci-libs/flexiblas[blis?,mkl?,openblas?]
+		)
+		mkl? (
+			sci-libs/mkl[llvm-openmp]
+		)
+		openblas? (
+			sci-libs/openblas
+		)
+		virtual/blas[flexiblas=]
+	)
+	cuda? (
+		dev-util/nvidia-cuda-toolkit:=
+	)
+	rocm? (
+		>=dev-util/hip-${ROCM_VERSION}:=
+		>=sci-libs/hipBLAS-${ROCM_VERSION}:=
+		>=sci-libs/rocBLAS-${ROCM_VERSION}:=
+	)
+"
+
+DEPEND="
+	${COMMON_DEPEND}
+	>=dev-lang/go-1.23.4
+"
+BDEPEND="
+	vulkan? (
+		dev-util/vulkan-headers
+		media-libs/shaderc
+	)
+"
+
+RDEPEND="
+	${COMMON_DEPEND}
+	acct-group/${PN}
+	>=acct-user/${PN}-3[cuda?]
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-9999-use-GNUInstallDirs.patch"
+	"${FILESDIR}/${PN}-0.18.0-make-installing-runtime-deps-optional.patch"
+)
+
+pkg_pretend() {
+	if use amd64; then
+		if use cpu_flags_x86_f16c && use cpu_flags_x86_avx2 && use cpu_flags_x86_fma3 && ! use cpu_flags_x86_bmi2; then
+			ewarn
+			ewarn "CPU_FLAGS_X86: bmi2 not enabled."
+			ewarn "  Not building haswell runner."
+			ewarn "  Not building skylakex runner."
+			ewarn "  Not building icelake runner."
+			ewarn "  Not building alderlake runner."
+			ewarn
+			if grep bmi2 /proc/cpuinfo > /dev/null; then
+				ewarn "bmi2 found in /proc/cpuinfo"
+				ewarn
+			fi
+		fi
+	fi
+}
+
+pkg_setup() {
+	if use rocm; then
+		linux-info_pkg_setup
+		if linux-info_get_any_version && linux_config_exists; then
+			if ! linux_chkconfig_present HSA_AMD_SVM; then
+				ewarn "To use ROCm/HIP, you need to have HSA_AMD_SVM option enabled in your kernel."
+			fi
+		fi
+	fi
+}
+
+src_unpack() {
+	# Already filter lto flags for ROCM
+	# 963401
+	if use rocm; then
+		# copied from _rocm_strip_unsupported_flags
+		strip-unsupported-flags
+		export CXXFLAGS="$(test-flags-HIPCXX "${CXXFLAGS}")"
+	fi
+
+	if [[ "${PV}" == *9999* ]]; then
+		git-r3_src_unpack
+		go-module_live_vendor
+	else
+		go-module_src_unpack
+	fi
+}
+
+src_prepare() {
+	cmake_src_prepare
+
+	sed \
+		-e "/set(GGML_CCACHE/s/ON/OFF/g" \
+		-i CMakeLists.txt || die "Disable CCACHE sed failed"
+
+	# TODO see src_unpack?
+	sed \
+		-e "s/ -O3//g" \
+		-i \
+			ml/backend/ggml/ggml/src/ggml-cpu/cpu.go \
+		|| die "-O3 sed failed"
+
+	# grep -Rl -e 'lib/ollama' -e '"..", "lib"'  --include '*.go'
+	sed \
+		-e "s/\"..\", \"lib\"/\"..\", \"$(get_libdir)\"/" \
+		-e "s#\"lib/ollama\"#\"$(get_libdir)/ollama\"#" \
+		-i \
+			ml/backend/ggml/ggml/src/ggml.go \
+			ml/path.go \
+		|| die "libdir sed failed"
+
+	if use amd64; then
+		if
+			! use cpu_flags_x86_sse4_2; then
+			sed -e "/ggml_add_cpu_backend_variant(sse42/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx; then
+			sed -e "/ggml_add_cpu_backend_variant(sandybridge/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3; then
+			sed -e "/ggml_add_cpu_backend_variant(haswell/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX F16C AVX2 BMI2 FMA)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3 ||
+			! use cpu_flags_x86_avx512f; then
+			sed -e "/ggml_add_cpu_backend_variant(skylakex/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt ||  die
+			# SSE42 AVX F16C AVX2 BMI2 FMA AVX512)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3 ||
+			! use cpu_flags_x86_avx512f ||
+			! use cpu_flags_x86_avx512vbmi ||
+			! use cpu_flags_x86_avx512_vnni; then
+			sed -e "/ggml_add_cpu_backend_variant(icelake/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX F16C AVX2 BMI2 FMA AVX512 AVX512_VBMI AVX512_VNNI)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3 ||
+			! use cpu_flags_x86_avx_vnni; then
+			sed -e "/ggml_add_cpu_backend_variant(alderlake/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX F16C AVX2 BMI2 FMA AVX_VNNI)
+		fi
+
+		# ml/backend/ggml/ggml/src/CMakeLists.txt
+	fi
+
+	if use cuda; then
+		cuda_src_prepare
+	fi
+
+	if use rocm; then
+		# --hip-version gets appended to the compile flags which isn't a known flag.
+		# This causes rocm builds to fail because -Wunused-command-line-argument is turned on.
+		# Use nuclear option to fix this.
+		# Disable -Werror's from go modules.
+		find "${S}" -name ".go" -exec sed -i "s/ -Werror / /g" {} + || die
+	fi
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DOLLAMA_INSTALL_RUNTIME_DEPS="no"
+		-DGGML_CCACHE="no"
+
+		# backends end up in /usr/bin otherwise
+		-DGGML_BACKEND_DL="yes"
+		# TODO causes duplicate install warning but breaks detection otherwise ollama/issues/13614
+		-DGGML_BACKEND_DIR="${EPREFIX}/usr/$(get_libdir)/${PN}"
+
+		# -DGGML_CPU="yes"
+		-DGGML_BLAS="$(usex blas)"
+
+		# -DGGML_CUDA="$(usex cuda)"
+		# -DGGML_HIP="$(usex rocm)"
+
+		# -DGGML_METAL="yes" # apple
+		# missing from ml/backend/ggml/ggml/src/
+		# -DGGML_CANN="yes"
+		# -DGGML_MUSA="yes"
+		# -DGGML_RPC="yes"
+		# -DGGML_SYCL="yes"
+		# -DGGML_KOMPUTE="$(usex kompute)"
+		# -DGGML_OPENCL="$(usex opencl)"
+		# -DGGML_VULKAN="$(usex vulkan)"
+		"$(cmake_use_find_package vulkan Vulkan)"
+	)
+
+	if tc-is-lto ; then
+		mycmakeargs+=(
+			-DGGML_LTO="yes"
+		)
+	fi
+
+	if use blas; then
+		if use flexiblas ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="FlexiBLAS"
+			)
+		elif use blis ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="FLAME"
+			)
+		elif use mkl ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="Intel10_64lp"
+			)
+		# elif use nvhpc ; then
+		# 	mycmakeargs+=(
+		# 		-DGGML_BLAS_VENDOR="NVHPC"
+		# 	)
+		elif use openblas ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="OpenBLAS"
+			)
+		else
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="Generic"
+			)
+		fi
+	fi
+
+	if use cuda; then
+		local -x CUDAHOSTCXX CUDAHOSTLD
+		CUDAHOSTCXX="$(cuda_gccdir)"
+		CUDAHOSTLD="$(tc-getCXX)"
+
+		# default to all-major for now until cuda.eclass is updated
+		if [[ ! -v CUDAARCHS ]]; then
+			local CUDAARCHS="all-major"
+		fi
+
+		mycmakeargs+=(
+			-DCMAKE_CUDA_ARCHITECTURES="${CUDAARCHS}"
+		)
+
+		cuda_add_sandbox -w
+		addpredict "/dev/char/"
+	else
+		mycmakeargs+=(
+			-DCMAKE_CUDA_COMPILER="NOTFOUND"
+		)
+	fi
+
+	if use rocm; then
+		mycmakeargs+=(
+			-DCMAKE_HIP_ARCHITECTURES="$(get_amdgpu_flags)"
+			-DCMAKE_HIP_PLATFORM="amd"
+			# ollama doesn't honor the default cmake options
+			-DAMDGPU_TARGETS="$(get_amdgpu_flags)"
+		)
+
+		local -x HIP_PATH="${ESYSROOT}/usr"
+	else
+		mycmakeargs+=(
+			-DCMAKE_HIP_COMPILER="NOTFOUND"
+		)
+	fi
+
+	cmake_src_configure
+}
+
+src_compile() {
+	# export version information
+	# https://github.com/gentoo/guru/pull/205
+	# https://forums.gentoo.org/viewtopic-p-8831646.html
+	local VERSION
+	if [[ "${PV}" == *9999* ]]; then
+		VERSION="$(
+			git describe --tags --first-parent --abbrev=7 --long --dirty --always \
+			| sed -e "s/^v//g"
+		)"
+	else
+		VERSION="${PVR}"
+	fi
+	local EXTRA_GOFLAGS_LD=(
+		# "-w" # disable DWARF generation
+		# "-s" # disable symbol table
+		"-X=github.com/ollama/ollama/version.Version=${VERSION}"
+		"-X=github.com/ollama/ollama/server.mode=release"
+	)
+	GOFLAGS+=" '-ldflags=${EXTRA_GOFLAGS_LD[*]}'"
+
+	ego build
+
+	cmake_src_compile
+}
+
+src_install() {
+	dobin ollama
+
+	cmake_src_install
+
+	newinitd "${FILESDIR}/ollama.init" "${PN}"
+	newconfd "${FILESDIR}/ollama.confd" "${PN}"
+
+	systemd_dounit "${FILESDIR}/ollama.service"
+}
+
+pkg_preinst() {
+	keepdir /var/log/ollama
+	fperms 750 /var/log/ollama
+	fowners "${PN}:${PN}" /var/log/ollama
+}
+
+pkg_postinst() {
+	if [[ -z ${REPLACING_VERSIONS} ]] ; then
+		einfo "Quick guide:"
+		einfo "\tollama serve"
+		einfo "\tollama run llama3:70b"
+		einfo
+		einfo "See available models at https://ollama.com/library"
+	fi
+
+	einfo
+	einfo "Ollama binds 127.0.0.1 port 11434 by default."
+	einfo "Change the bind address with the OLLAMA_HOST environment variable."
+	einfo "See https://docs.ollama.com/faq for more info"
+	einfo
+
+	if use cuda ; then
+		einfo "When using cuda the user running ${PN} has to be in the video group or it won't detect devices."
+		einfo "The ebuild ensures this for user ${PN} via acct-user/${PN}[cuda]"
+	fi
+}

sci-ml/ollama/ollama-0.21.2.ebuild

@@ -0,0 +1,422 @@
+# Copyright 2024-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# supports ROCM/HIP >=5.5, but we define 6.1 due to the eclass
+ROCM_VERSION="6.1"
+inherit cuda rocm
+inherit cmake
+inherit flag-o-matic go-module linux-info systemd toolchain-funcs
+
+DESCRIPTION="Get up and running with Llama 3, Mistral, Gemma, and other language models."
+HOMEPAGE="https://ollama.com"
+
+if [[ ${PV} == *9999* ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/ollama/ollama.git"
+else
+	MY_PV="${PV/_rc/-rc}"
+	MY_P="${PN}-${MY_PV}"
+	SRC_URI="
+		https://github.com/ollama/${PN}/archive/refs/tags/v${MY_PV}.tar.gz -> ${MY_P}.gh.tar.gz
+		https://github.com/gentoo-golang-dist/${PN}/releases/download/v${MY_PV}/${MY_P}-deps.tar.xz
+	"
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="~amd64"
+	fi
+fi
+
+LICENSE="MIT"
+SLOT="0"
+
+IUSE="cuda rocm vulkan"
+# IUSE+=" opencl"
+
+BLAS_BACKENDS="blis mkl openblas"
+BLAS_REQUIRED_USE="blas? ( ?? ( ${BLAS_BACKENDS} ) )"
+
+IUSE+=" blas flexiblas ${BLAS_BACKENDS}"
+REQUIRED_USE+=" ${BLAS_REQUIRED_USE}"
+
+declare -rgA CPU_FEATURES=(
+	[AVX2]="x86"
+	[AVX512F]="x86"
+	[AVX512_VBMI]="x86;avx512vbmi"
+	[AVX512_VNNI]="x86"
+	[AVX]="x86"
+	[AVX_VNNI]="x86"
+	[BMI2]="x86"
+	[F16C]="x86"
+	[FMA]="x86;fma3"
+	[SSE42]="x86;sse4_2"
+)
+add_cpu_features_use() {
+	for flag in "${!CPU_FEATURES[@]}"; do
+		IFS=$';' read -rd '' arch use < <(printf %s "${CPU_FEATURES[${flag}]}")
+		IUSE+=" cpu_flags_${arch}_${use:-${flag,,}}"
+	done
+}
+add_cpu_features_use
+
+RESTRICT="mirror test"
+
+# FindBLAS.cmake
+# If Fortran is an enabled compiler it sets BLAS_mkl_THREADING to gnu. -> sci-libs/mkl[gnu-openmp]
+# If Fortran is not an enabled compiler it sets BLAS_mkl_THREADING to intel. -> sci-libs/mkl[llvm-openmp]
+COMMON_DEPEND="
+	blas? (
+		blis? (
+			sci-libs/blis:=
+		)
+		flexiblas? (
+			sci-libs/flexiblas[blis?,mkl?,openblas?]
+		)
+		mkl? (
+			sci-libs/mkl[llvm-openmp]
+		)
+		openblas? (
+			sci-libs/openblas
+		)
+		virtual/blas[flexiblas=]
+	)
+	cuda? (
+		dev-util/nvidia-cuda-toolkit:=
+	)
+	rocm? (
+		>=dev-util/hip-${ROCM_VERSION}:=
+		>=sci-libs/hipBLAS-${ROCM_VERSION}:=
+		>=sci-libs/rocBLAS-${ROCM_VERSION}:=
+	)
+"
+
+DEPEND="
+	${COMMON_DEPEND}
+	>=dev-lang/go-1.24.1
+"
+BDEPEND="
+	vulkan? (
+		dev-util/vulkan-headers
+		media-libs/shaderc
+	)
+"
+
+RDEPEND="
+	${COMMON_DEPEND}
+	acct-group/${PN}
+	>=acct-user/${PN}-3[cuda?]
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-9999-use-GNUInstallDirs.patch"
+	"${FILESDIR}/${PN}-0.18.0-make-installing-runtime-deps-optional.patch"
+)
+
+pkg_pretend() {
+	if use amd64; then
+		if use cpu_flags_x86_f16c && use cpu_flags_x86_avx2 && use cpu_flags_x86_fma3 && ! use cpu_flags_x86_bmi2; then
+			ewarn
+			ewarn "CPU_FLAGS_X86: bmi2 not enabled."
+			ewarn "  Not building haswell runner."
+			ewarn "  Not building skylakex runner."
+			ewarn "  Not building icelake runner."
+			ewarn "  Not building alderlake runner."
+			ewarn
+			if grep bmi2 /proc/cpuinfo > /dev/null; then
+				ewarn "bmi2 found in /proc/cpuinfo"
+				ewarn
+			fi
+		fi
+	fi
+}
+
+pkg_setup() {
+	if use rocm; then
+		linux-info_pkg_setup
+		if linux-info_get_any_version && linux_config_exists; then
+			if ! linux_chkconfig_present HSA_AMD_SVM; then
+				ewarn "To use ROCm/HIP, you need to have HSA_AMD_SVM option enabled in your kernel."
+			fi
+		fi
+	fi
+}
+
+src_unpack() {
+	# Already filter lto flags for ROCM
+	# 963401
+	if use rocm; then
+		# copied from _rocm_strip_unsupported_flags
+		strip-unsupported-flags
+		export CXXFLAGS="$(test-flags-HIPCXX "${CXXFLAGS}")"
+	fi
+
+	if [[ "${PV}" == *9999* ]]; then
+		git-r3_src_unpack
+		go-module_live_vendor
+	else
+		go-module_src_unpack
+	fi
+}
+
+src_prepare() {
+	cmake_src_prepare
+
+	sed \
+		-e "/set(GGML_CCACHE/s/ON/OFF/g" \
+		-i CMakeLists.txt || die "Disable CCACHE sed failed"
+
+	# TODO see src_unpack?
+	sed \
+		-e "s/ -O3//g" \
+		-i \
+			ml/backend/ggml/ggml/src/ggml-cpu/cpu.go \
+		|| die "-O3 sed failed"
+
+	# grep -Rl -e 'lib/ollama' -e '"..", "lib"'  --include '*.go'
+	sed \
+		-e "s/\"..\", \"lib\"/\"..\", \"$(get_libdir)\"/" \
+		-e "s#\"lib/ollama\"#\"$(get_libdir)/ollama\"#" \
+		-i \
+			ml/backend/ggml/ggml/src/ggml.go \
+			ml/path.go \
+		|| die "libdir sed failed"
+
+	if use amd64; then
+		if
+			! use cpu_flags_x86_sse4_2; then
+			sed -e "/ggml_add_cpu_backend_variant(sse42/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx; then
+			sed -e "/ggml_add_cpu_backend_variant(sandybridge/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3; then
+			sed -e "/ggml_add_cpu_backend_variant(haswell/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX F16C AVX2 BMI2 FMA)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3 ||
+			! use cpu_flags_x86_avx512f; then
+			sed -e "/ggml_add_cpu_backend_variant(skylakex/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt ||  die
+			# SSE42 AVX F16C AVX2 BMI2 FMA AVX512)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3 ||
+			! use cpu_flags_x86_avx512f ||
+			! use cpu_flags_x86_avx512vbmi ||
+			! use cpu_flags_x86_avx512_vnni; then
+			sed -e "/ggml_add_cpu_backend_variant(icelake/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX F16C AVX2 BMI2 FMA AVX512 AVX512_VBMI AVX512_VNNI)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3 ||
+			! use cpu_flags_x86_avx_vnni; then
+			sed -e "/ggml_add_cpu_backend_variant(alderlake/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX F16C AVX2 BMI2 FMA AVX_VNNI)
+		fi
+
+		# ml/backend/ggml/ggml/src/CMakeLists.txt
+	fi
+
+	if use cuda; then
+		cuda_src_prepare
+	fi
+
+	if use rocm; then
+		# --hip-version gets appended to the compile flags which isn't a known flag.
+		# This causes rocm builds to fail because -Wunused-command-line-argument is turned on.
+		# Use nuclear option to fix this.
+		# Disable -Werror's from go modules.
+		find "${S}" -name ".go" -exec sed -i "s/ -Werror / /g" {} + || die
+	fi
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DOLLAMA_INSTALL_RUNTIME_DEPS="no"
+		-DGGML_CCACHE="no"
+
+		# backends end up in /usr/bin otherwise
+		-DGGML_BACKEND_DL="yes"
+		# TODO causes duplicate install warning but breaks detection otherwise ollama/issues/13614
+		-DGGML_BACKEND_DIR="${EPREFIX}/usr/$(get_libdir)/${PN}"
+
+		# -DGGML_CPU="yes"
+		-DGGML_BLAS="$(usex blas)"
+
+		# -DGGML_CUDA="$(usex cuda)"
+		# -DGGML_HIP="$(usex rocm)"
+
+		# -DGGML_METAL="yes" # apple
+		# missing from ml/backend/ggml/ggml/src/
+		# -DGGML_CANN="yes"
+		# -DGGML_MUSA="yes"
+		# -DGGML_RPC="yes"
+		# -DGGML_SYCL="yes"
+		# -DGGML_KOMPUTE="$(usex kompute)"
+		# -DGGML_OPENCL="$(usex opencl)"
+		# -DGGML_VULKAN="$(usex vulkan)"
+		"$(cmake_use_find_package vulkan Vulkan)"
+	)
+
+	if tc-is-lto ; then
+		mycmakeargs+=(
+			-DGGML_LTO="yes"
+		)
+	fi
+
+	if use blas; then
+		if use flexiblas ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="FlexiBLAS"
+			)
+		elif use blis ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="FLAME"
+			)
+		elif use mkl ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="Intel10_64lp"
+			)
+		# elif use nvhpc ; then
+		# 	mycmakeargs+=(
+		# 		-DGGML_BLAS_VENDOR="NVHPC"
+		# 	)
+		elif use openblas ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="OpenBLAS"
+			)
+		else
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="Generic"
+			)
+		fi
+	fi
+
+	if use cuda; then
+		local -x CUDAHOSTCXX CUDAHOSTLD
+		CUDAHOSTCXX="$(cuda_gccdir)"
+		CUDAHOSTLD="$(tc-getCXX)"
+
+		# default to all-major for now until cuda.eclass is updated
+		if [[ ! -v CUDAARCHS ]]; then
+			local CUDAARCHS="all-major"
+		fi
+
+		mycmakeargs+=(
+			-DCMAKE_CUDA_ARCHITECTURES="${CUDAARCHS}"
+		)
+
+		cuda_add_sandbox -w
+		addpredict "/dev/char/"
+	else
+		mycmakeargs+=(
+			-DCMAKE_CUDA_COMPILER="NOTFOUND"
+		)
+	fi
+
+	if use rocm; then
+		mycmakeargs+=(
+			-DCMAKE_HIP_ARCHITECTURES="$(get_amdgpu_flags)"
+			-DCMAKE_HIP_PLATFORM="amd"
+			# ollama doesn't honor the default cmake options
+			-DAMDGPU_TARGETS="$(get_amdgpu_flags)"
+		)
+
+		local -x HIP_PATH="${ESYSROOT}/usr"
+	else
+		mycmakeargs+=(
+			-DCMAKE_HIP_COMPILER="NOTFOUND"
+		)
+	fi
+
+	cmake_src_configure
+}
+
+src_compile() {
+	# export version information
+	# https://github.com/gentoo/guru/pull/205
+	# https://forums.gentoo.org/viewtopic-p-8831646.html
+	local VERSION
+	if [[ "${PV}" == *9999* ]]; then
+		VERSION="$(
+			git describe --tags --first-parent --abbrev=7 --long --dirty --always \
+			| sed -e "s/^v//g"
+		)"
+	else
+		VERSION="${PVR}"
+	fi
+	local EXTRA_GOFLAGS_LD=(
+		# "-w" # disable DWARF generation
+		# "-s" # disable symbol table
+		"-X=github.com/ollama/ollama/version.Version=${VERSION}"
+		"-X=github.com/ollama/ollama/server.mode=release"
+	)
+	GOFLAGS+=" '-ldflags=${EXTRA_GOFLAGS_LD[*]}'"
+
+	ego build
+
+	cmake_src_compile
+}
+
+src_install() {
+	dobin ollama
+
+	cmake_src_install
+
+	newinitd "${FILESDIR}/ollama.init" "${PN}"
+	newconfd "${FILESDIR}/ollama.confd" "${PN}"
+
+	systemd_dounit "${FILESDIR}/ollama.service"
+}
+
+pkg_preinst() {
+	keepdir /var/log/ollama
+	fperms 750 /var/log/ollama
+	fowners "${PN}:${PN}" /var/log/ollama
+}
+
+pkg_postinst() {
+	if [[ -z ${REPLACING_VERSIONS} ]] ; then
+		einfo "Quick guide:"
+		einfo "\tollama serve"
+		einfo "\tollama run llama3:70b"
+		einfo
+		einfo "See available models at https://ollama.com/library"
+	fi
+
+	einfo
+	einfo "Ollama binds 127.0.0.1 port 11434 by default."
+	einfo "Change the bind address with the OLLAMA_HOST environment variable."
+	einfo "See https://docs.ollama.com/faq for more info"
+	einfo
+
+	if use cuda ; then
+		einfo "When using cuda the user running ${PN} has to be in the video group or it won't detect devices."
+		einfo "The ebuild ensures this for user ${PN} via acct-user/${PN}[cuda]"
+	fi
+}

sci-ml/ollama/ollama-9999.ebuild

@@ -0,0 +1,422 @@
+# Copyright 2024-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# supports ROCM/HIP >=5.5, but we define 6.1 due to the eclass
+ROCM_VERSION="6.1"
+inherit cuda rocm
+inherit cmake
+inherit flag-o-matic go-module linux-info systemd toolchain-funcs
+
+DESCRIPTION="Get up and running with Llama 3, Mistral, Gemma, and other language models."
+HOMEPAGE="https://ollama.com"
+
+if [[ ${PV} == *9999* ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/ollama/ollama.git"
+else
+	MY_PV="${PV/_rc/-rc}"
+	MY_P="${PN}-${MY_PV}"
+	SRC_URI="
+		https://github.com/ollama/${PN}/archive/refs/tags/v${MY_PV}.tar.gz -> ${MY_P}.gh.tar.gz
+		https://github.com/gentoo-golang-dist/${PN}/releases/download/v${MY_PV}/${MY_P}-deps.tar.xz
+	"
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="~amd64"
+	fi
+fi
+
+LICENSE="MIT"
+SLOT="0"
+
+IUSE="cuda rocm vulkan"
+# IUSE+=" opencl"
+
+BLAS_BACKENDS="blis mkl openblas"
+BLAS_REQUIRED_USE="blas? ( ?? ( ${BLAS_BACKENDS} ) )"
+
+IUSE+=" blas flexiblas ${BLAS_BACKENDS}"
+REQUIRED_USE+=" ${BLAS_REQUIRED_USE}"
+
+declare -rgA CPU_FEATURES=(
+	[AVX2]="x86"
+	[AVX512F]="x86"
+	[AVX512_VBMI]="x86;avx512vbmi"
+	[AVX512_VNNI]="x86"
+	[AVX]="x86"
+	[AVX_VNNI]="x86"
+	[BMI2]="x86"
+	[F16C]="x86"
+	[FMA]="x86;fma3"
+	[SSE42]="x86;sse4_2"
+)
+add_cpu_features_use() {
+	for flag in "${!CPU_FEATURES[@]}"; do
+		IFS=$';' read -rd '' arch use < <(printf %s "${CPU_FEATURES[${flag}]}")
+		IUSE+=" cpu_flags_${arch}_${use:-${flag,,}}"
+	done
+}
+add_cpu_features_use
+
+RESTRICT="mirror test"
+
+# FindBLAS.cmake
+# If Fortran is an enabled compiler it sets BLAS_mkl_THREADING to gnu. -> sci-libs/mkl[gnu-openmp]
+# If Fortran is not an enabled compiler it sets BLAS_mkl_THREADING to intel. -> sci-libs/mkl[llvm-openmp]
+COMMON_DEPEND="
+	blas? (
+		blis? (
+			sci-libs/blis:=
+		)
+		flexiblas? (
+			sci-libs/flexiblas[blis?,mkl?,openblas?]
+		)
+		mkl? (
+			sci-libs/mkl[llvm-openmp]
+		)
+		openblas? (
+			sci-libs/openblas
+		)
+		virtual/blas[flexiblas=]
+	)
+	cuda? (
+		dev-util/nvidia-cuda-toolkit:=
+	)
+	rocm? (
+		>=dev-util/hip-${ROCM_VERSION}:=
+		>=sci-libs/hipBLAS-${ROCM_VERSION}:=
+		>=sci-libs/rocBLAS-${ROCM_VERSION}:=
+	)
+"
+
+DEPEND="
+	${COMMON_DEPEND}
+	>=dev-lang/go-1.23.4
+"
+BDEPEND="
+	vulkan? (
+		dev-util/vulkan-headers
+		media-libs/shaderc
+	)
+"
+
+RDEPEND="
+	${COMMON_DEPEND}
+	acct-group/${PN}
+	>=acct-user/${PN}-3[cuda?]
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-9999-use-GNUInstallDirs.patch"
+	"${FILESDIR}/${PN}-9999-make-installing-runtime-deps-optional.patch"
+)
+
+pkg_pretend() {
+	if use amd64; then
+		if use cpu_flags_x86_f16c && use cpu_flags_x86_avx2 && use cpu_flags_x86_fma3 && ! use cpu_flags_x86_bmi2; then
+			ewarn
+			ewarn "CPU_FLAGS_X86: bmi2 not enabled."
+			ewarn "  Not building haswell runner."
+			ewarn "  Not building skylakex runner."
+			ewarn "  Not building icelake runner."
+			ewarn "  Not building alderlake runner."
+			ewarn
+			if grep bmi2 /proc/cpuinfo > /dev/null; then
+				ewarn "bmi2 found in /proc/cpuinfo"
+				ewarn
+			fi
+		fi
+	fi
+}
+
+pkg_setup() {
+	if use rocm; then
+		linux-info_pkg_setup
+		if linux-info_get_any_version && linux_config_exists; then
+			if ! linux_chkconfig_present HSA_AMD_SVM; then
+				ewarn "To use ROCm/HIP, you need to have HSA_AMD_SVM option enabled in your kernel."
+			fi
+		fi
+	fi
+}
+
+src_unpack() {
+	# Already filter lto flags for ROCM
+	# 963401
+	if use rocm; then
+		# copied from _rocm_strip_unsupported_flags
+		strip-unsupported-flags
+		export CXXFLAGS="$(test-flags-HIPCXX "${CXXFLAGS}")"
+	fi
+
+	if [[ "${PV}" == *9999* ]]; then
+		git-r3_src_unpack
+		go-module_live_vendor
+	else
+		go-module_src_unpack
+	fi
+}
+
+src_prepare() {
+	cmake_src_prepare
+
+	sed \
+		-e "/set(GGML_CCACHE/s/ON/OFF/g" \
+		-i CMakeLists.txt || die "Disable CCACHE sed failed"
+
+	# TODO see src_unpack?
+	sed \
+		-e "s/ -O3//g" \
+		-i \
+			ml/backend/ggml/ggml/src/ggml-cpu/cpu.go \
+		|| die "-O3 sed failed"
+
+	# grep -Rl -e 'lib/ollama' -e '"..", "lib"'  --include '*.go'
+	sed \
+		-e "s/\"..\", \"lib\"/\"..\", \"$(get_libdir)\"/" \
+		-e "s#\"lib/ollama\"#\"$(get_libdir)/ollama\"#" \
+		-i \
+			ml/backend/ggml/ggml/src/ggml.go \
+			ml/path.go \
+		|| die "libdir sed failed"
+
+	if use amd64; then
+		if
+			! use cpu_flags_x86_sse4_2; then
+			sed -e "/ggml_add_cpu_backend_variant(sse42/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx; then
+			sed -e "/ggml_add_cpu_backend_variant(sandybridge/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3; then
+			sed -e "/ggml_add_cpu_backend_variant(haswell/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX F16C AVX2 BMI2 FMA)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3 ||
+			! use cpu_flags_x86_avx512f; then
+			sed -e "/ggml_add_cpu_backend_variant(skylakex/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt ||  die
+			# SSE42 AVX F16C AVX2 BMI2 FMA AVX512)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3 ||
+			! use cpu_flags_x86_avx512f ||
+			! use cpu_flags_x86_avx512vbmi ||
+			! use cpu_flags_x86_avx512_vnni; then
+			sed -e "/ggml_add_cpu_backend_variant(icelake/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX F16C AVX2 BMI2 FMA AVX512 AVX512_VBMI AVX512_VNNI)
+		fi
+		if
+			! use cpu_flags_x86_sse4_2 ||
+			! use cpu_flags_x86_avx ||
+			! use cpu_flags_x86_f16c ||
+			! use cpu_flags_x86_avx2 ||
+			! use cpu_flags_x86_bmi2 ||
+			! use cpu_flags_x86_fma3 ||
+			! use cpu_flags_x86_avx_vnni; then
+			sed -e "/ggml_add_cpu_backend_variant(alderlake/s/^/# /g" -i ml/backend/ggml/ggml/src/CMakeLists.txt || die
+			# SSE42 AVX F16C AVX2 BMI2 FMA AVX_VNNI)
+		fi
+
+		# ml/backend/ggml/ggml/src/CMakeLists.txt
+	fi
+
+	if use cuda; then
+		cuda_src_prepare
+	fi
+
+	if use rocm; then
+		# --hip-version gets appended to the compile flags which isn't a known flag.
+		# This causes rocm builds to fail because -Wunused-command-line-argument is turned on.
+		# Use nuclear option to fix this.
+		# Disable -Werror's from go modules.
+		find "${S}" -name ".go" -exec sed -i "s/ -Werror / /g" {} + || die
+	fi
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DOLLAMA_INSTALL_RUNTIME_DEPS="no"
+		-DGGML_CCACHE="no"
+
+		# backends end up in /usr/bin otherwise
+		-DGGML_BACKEND_DL="yes"
+		# TODO causes duplicate install warning but breaks detection otherwise ollama/issues/13614
+		-DGGML_BACKEND_DIR="${EPREFIX}/usr/$(get_libdir)/${PN}"
+
+		# -DGGML_CPU="yes"
+		-DGGML_BLAS="$(usex blas)"
+
+		# -DGGML_CUDA="$(usex cuda)"
+		# -DGGML_HIP="$(usex rocm)"
+
+		# -DGGML_METAL="yes" # apple
+		# missing from ml/backend/ggml/ggml/src/
+		# -DGGML_CANN="yes"
+		# -DGGML_MUSA="yes"
+		# -DGGML_RPC="yes"
+		# -DGGML_SYCL="yes"
+		# -DGGML_KOMPUTE="$(usex kompute)"
+		# -DGGML_OPENCL="$(usex opencl)"
+		# -DGGML_VULKAN="$(usex vulkan)"
+		"$(cmake_use_find_package vulkan Vulkan)"
+	)
+
+	if tc-is-lto ; then
+		mycmakeargs+=(
+			-DGGML_LTO="yes"
+		)
+	fi
+
+	if use blas; then
+		if use flexiblas ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="FlexiBLAS"
+			)
+		elif use blis ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="FLAME"
+			)
+		elif use mkl ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="Intel10_64lp"
+			)
+		# elif use nvhpc ; then
+		# 	mycmakeargs+=(
+		# 		-DGGML_BLAS_VENDOR="NVHPC"
+		# 	)
+		elif use openblas ; then
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="OpenBLAS"
+			)
+		else
+			mycmakeargs+=(
+				-DGGML_BLAS_VENDOR="Generic"
+			)
+		fi
+	fi
+
+	if use cuda; then
+		local -x CUDAHOSTCXX CUDAHOSTLD
+		CUDAHOSTCXX="$(cuda_gccdir)"
+		CUDAHOSTLD="$(tc-getCXX)"
+
+		# default to all-major for now until cuda.eclass is updated
+		if [[ ! -v CUDAARCHS ]]; then
+			local CUDAARCHS="all-major"
+		fi
+
+		mycmakeargs+=(
+			-DCMAKE_CUDA_ARCHITECTURES="${CUDAARCHS}"
+		)
+
+		cuda_add_sandbox -w
+		addpredict "/dev/char/"
+	else
+		mycmakeargs+=(
+			-DCMAKE_CUDA_COMPILER="NOTFOUND"
+		)
+	fi
+
+	if use rocm; then
+		mycmakeargs+=(
+			-DCMAKE_HIP_ARCHITECTURES="$(get_amdgpu_flags)"
+			-DCMAKE_HIP_PLATFORM="amd"
+			# ollama doesn't honor the default cmake options
+			-DAMDGPU_TARGETS="$(get_amdgpu_flags)"
+		)
+
+		local -x HIP_PATH="${ESYSROOT}/usr"
+	else
+		mycmakeargs+=(
+			-DCMAKE_HIP_COMPILER="NOTFOUND"
+		)
+	fi
+
+	cmake_src_configure
+}
+
+src_compile() {
+	# export version information
+	# https://github.com/gentoo/guru/pull/205
+	# https://forums.gentoo.org/viewtopic-p-8831646.html
+	local VERSION
+	if [[ "${PV}" == *9999* ]]; then
+		VERSION="$(
+			git describe --tags --first-parent --abbrev=7 --long --dirty --always \
+			| sed -e "s/^v//g"
+		)"
+	else
+		VERSION="${PVR}"
+	fi
+	local EXTRA_GOFLAGS_LD=(
+		# "-w" # disable DWARF generation
+		# "-s" # disable symbol table
+		"-X=github.com/ollama/ollama/version.Version=${VERSION}"
+		"-X=github.com/ollama/ollama/server.mode=release"
+	)
+	GOFLAGS+=" '-ldflags=${EXTRA_GOFLAGS_LD[*]}'"
+
+	ego build
+
+	cmake_src_compile
+}
+
+src_install() {
+	dobin ollama
+
+	cmake_src_install
+
+	newinitd "${FILESDIR}/ollama.init" "${PN}"
+	newconfd "${FILESDIR}/ollama.confd" "${PN}"
+
+	systemd_dounit "${FILESDIR}/ollama.service"
+}
+
+pkg_preinst() {
+	keepdir /var/log/ollama
+	fperms 750 /var/log/ollama
+	fowners "${PN}:${PN}" /var/log/ollama
+}
+
+pkg_postinst() {
+	if [[ -z ${REPLACING_VERSIONS} ]] ; then
+		einfo "Quick guide:"
+		einfo "\tollama serve"
+		einfo "\tollama run llama3:70b"
+		einfo
+		einfo "See available models at https://ollama.com/library"
+	fi
+
+	einfo
+	einfo "Ollama binds 127.0.0.1 port 11434 by default."
+	einfo "Change the bind address with the OLLAMA_HOST environment variable."
+	einfo "See https://docs.ollama.com/faq for more info"
+	einfo
+
+	if use cuda ; then
+		einfo "When using cuda the user running ${PN} has to be in the video group or it won't detect devices."
+		einfo "The ebuild ensures this for user ${PN} via acct-user/${PN}[cuda]"
+	fi
+}