Use of "get_llvm_prefix" function in ebuilds requires "llvm" in inherit line

[mattmcadoo]

Without "llvm":

` * Package: sci-libs/rocSPARSE-6.0.2:0/6.0

• Repository: rocm-bleeding-edge
• Maintainer: sci@gentoo.org candrews@gentoo.org,gentoo@holzke.net
• USE: abi_x86_64 amd64 amdgpu_targets_gfx1010 amdgpu_targets_gfx1011 amdgpu_targets_gfx1012 amdgpu_targets_gfx1030 amdgpu_targets_gfx1031 amdgpu_targets_gfx1100 amdgpu_targets_gfx1101 amdgpu_targets_gfx1102 amdgpu_targets_gfx803 amdgpu_targets_gfx900 amdgpu_targets_gfx902 amdgpu_targets_gfx906 amdgpu_targets_gfx908 amdgpu_targets_gfx90a elibc_glibc kernel_linux
• FEATURES: network-sandbox preserve-libs sandbox userpriv usersandbox /var/db/repos/sjnewbury-rocm-bleeding-edge/sci-libs/rocSPARSE/rocSPARSE-6.0.2.ebuild: line 70: get_llvm_prefix: command not found /var/db/repos/sjnewbury-rocm-bleeding-edge/sci-libs/rocSPARSE/rocSPARSE-6.0.2.ebuild: line 70: get_llvm_prefix: command not found /var/db/repos/sjnewbury-rocm-bleeding-edge/sci-libs/rocSPARSE/rocSPARSE-6.0.2.ebuild: line 70: get_llvm_prefix: command not found /var/db/repos/sjnewbury-rocm-bleeding-edge/sci-libs/rocSPARSE/rocSPARSE-6.0.2.ebuild: line 70: get_llvm_prefix: command not found /var/db/repos/gentoo/eclass/toolchain-funcs.eclass: line 775: /bin/clang: No such file or directory
• ERROR: sci-libs/rocSPARSE-6.0.2::rocm-bleeding-edge failed (setup phase):
• Clang required
• Call stack:
• ebuild.sh, line 136: Called pkg_setup
• rocSPARSE-6.0.2.ebuild, line 71: Called die
• The specific snippet of code:
• tc-is-clang || die Clang required
• If you need support, post the output of emerge --info '=sci-libs/rocSPARSE-6.0.2::rocm-bleeding-edge',
• the complete build log and the output of emerge -pqv '=sci-libs/rocSPARSE-6.0.2::rocm-bleeding-edge'.
• The complete build log is located at '/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/temp/build.log'.
• The ebuild environment file is located at '/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/temp/die.env'.
• Working directory: '/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/empty'
• S: '/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/work/rocSPARSE-rocm-6.0.2`

With "llvm" on line 9 of sci-libs/rocSPARSE/rocSPARSE-6.0.2.ebuild:

` * Package: sci-libs/rocSPARSE-6.0.2:0/6.0

• Repository: rocm-bleeding-edge
• Maintainer: sci@gentoo.org candrews@gentoo.org,gentoo@holzke.net
• USE: abi_x86_64 amd64 amdgpu_targets_gfx1010 amdgpu_targets_gfx1011 amdgpu_targets_gfx1012 amdgpu_targets_gfx1030 amdgpu_targets_gfx1031 amdgpu_targets_gfx1100 amdgpu_targets_gfx1101 amdgpu_targets_gfx1102 amdgpu_targets_gfx803 amdgpu_targets_gfx900 amdgpu_targets_gfx902 amdgpu_targets_gfx906 amdgpu_targets_gfx908 amdgpu_targets_gfx90a elibc_glibc kernel_linux
• FEATURES: network-sandbox preserve-libs sandbox userpriv usersandbox
• Source directory (CMAKE_USE_DIR): "/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/work/rocSPARSE-rocm-6.0.2"
• Build directory (BUILD_DIR): "/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/work/rocSPARSE-rocm-6.0.2_build"
• Hardcoded definition(s) removed in clients/CMakeLists.txt:
• set(CMAKE_INSTALL_PREFIX "${PROJECT_BINARY_DIR}/package" CACHE PATH "Instal
• set(CMAKE_INSTALL_PREFIX "/opt/rocm" CACHE PATH "Install path prefix, prepe
• set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build, option
• Hardcoded definition(s) removed in deps/CMakeLists.txt:
• set( CMAKE_INSTALL_PREFIX "${PROJECT_BINARY_DIR}/package" CACHE PATH "Insta
• set( CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build, optio
• Hardcoded definition(s) removed in CMakeLists.txt:
• set(CMAKE_INSTALL_PREFIX "${PROJECT_BINARY_DIR}/package" CACHE PATH "Instal
• set(CMAKE_INSTALL_PREFIX "/opt/rocm" CACHE PATH "Install path prefix, prepe
• set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build." FOR
• set(CMAKE_INSTALL_PREFIX "C:/hipSDK" CACHE PATH "Install path" FORCE)
• Source directory (CMAKE_USE_DIR): "/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/work/rocSPARSE-rocm-6.0.2"

• Build directory (BUILD_DIR): "/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/work/rocSPARSE-rocm-6.0.2_build" cmake -C /var/tmp/portage/sci-libs/rocSPARSE-6.0.2/work/rocSPARSE-rocm-6.0.2_build/gentoo_common_config.cmake -G Ninja -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_SKIP_RPATH=On -DAMDGPU_TARGETS=gfx90a:xnack+;gfx906:xnack-;gfx908:xnack-;gfx1030;gfx803;gfx900;gfx1010;gfx1011;gfx1012;gfx1031;gfx902;gfx1100;gfx1101;gfx1102; -DBUILD_CLIENTS_SAMPLES=OFF -DCMAKE_INSTALL_INCLUDEDIR=include -DBUILD_CLIENTS_TESTS=OFF -DBUILD_CLIENTS_BENCHMARKS=OFF -DBUILD_FILE_REORG_BACKWARD_COMPATIBILITY=NO -DROCM_SYMLINK_LIBS=OFF -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_TOOLCHAIN_FILE=/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/work/rocSPARSE-rocm-6.0.2_build/gentoo_toolchain.cmake /var/tmp/portage/sci-libs/rocSPARSE-6.0.2/work/rocSPARSE-rocm-6.0.2 loading initial cache file /var/tmp/portage/sci-libs/rocSPARSE-6.0.2/work/rocSPARSE-rocm-6.0.2_build/gentoo_common_config.cmake -- The CXX compiler identification is Clang 17.0.6 -- The Fortran compiler identification is unknown -- The C compiler identification is Clang 18.1.3 -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /usr/bin/hipcc - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done CMake Error at CMakeLists.txt:54 (project): The CMAKE_Fortran_COMPILER:

  /usr/lib/llvm/18/bin/flang

  is not a full path to an existing compiler tool.

  Tell CMake where to find the compiler by setting either the environment variable "FC" or the CMake cache entry CMAKE_Fortran_COMPILER to the full path to the compiler, or to the compiler name if it is in the PATH.

-- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working C compiler: /usr/lib/llvm/18/bin/clang - skipped -- Detecting C compile features -- Detecting C compile features - done -- Configuring incomplete, errors occurred!

• ERROR: sci-libs/rocSPARSE-6.0.2::rocm-bleeding-edge failed (configure phase):
• cmake failed
• Call stack:
• ebuild.sh, line 136: Called src_configure
• environment, line 3255: Called cmake_src_configure
• environment, line 1465: Called die
• The specific snippet of code:
• "${CMAKE_BINARY}" "${cmakeargs[@]}" "${CMAKE_USE_DIR}" || die "cmake failed";
• If you need support, post the output of emerge --info '=sci-libs/rocSPARSE-6.0.2::rocm-bleeding-edge',
• the complete build log and the output of emerge -pqv '=sci-libs/rocSPARSE-6.0.2::rocm-bleeding-edge'.
• The complete build log is located at '/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/temp/build.log'.
• The ebuild environment file is located at '/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/temp/environment'.
• Working directory: '/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/work/rocSPARSE-rocm-6.0.2_build'
• S: '/var/tmp/portage/sci-libs/rocSPARSE-6.0.2/work/rocSPARSE-rocm-6.0.2'`

Getting the same kind of failure with: dev-util/roctracer/roctracer-6.0.2.ebuild sci-libs/rocBLAS/rocBLAS-5.7.1.ebuild

There's probably more but these are the prerequisites.

[mattmcadoo]

Github butchered the formatting of trying to keep in all in code block...

[sjnewbury]

I should probably make all the llvm build stuff optional. My main reason for forcing it is the lack of compiler flag support explicitly for the HIP compiler vs C++. An alternative could be to judiciously filter the flags or just make sure all the packages properly support HIPFLAGS.