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Add linux-arm64 support #13

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Merged
ankane merged 1 commit into from
Jun 24, 2025
Merged

Add linux-arm64 support #13

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5 changes: 3 additions & 2 deletions Rakefile
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ Rake::TestTask.new do |t|
t.warning = false # for daru
end

shared_libraries = %w(lib_lightgbm.dll lib_lightgbm.dylib lib_lightgbm.arm64.dylib lib_lightgbm.so)
shared_libraries = %w(lib_lightgbm.dll lib_lightgbm.dylib lib_lightgbm.arm64.dylib lib_lightgbm.so lib_lightgbm.arm64.so)

# ensure vendor files exist
task :ensure_vendor do
Expand All @@ -26,7 +26,7 @@ def download_file(file, sha256)
version = "4.6.0"

url =
if file == "lib_lightgbm.arm64.dylib"
if ["lib_lightgbm.arm64.so", "lib_lightgbm.arm64.dylib"].include?(file)
"https://github.com/ankane/ml-builds/releases/download/lightgbm-#{version}/#{file}"
else
"https://github.com/microsoft/LightGBM/releases/download/v#{version}/#{file}"
Expand All @@ -46,6 +46,7 @@ end
namespace :vendor do
task :linux do
download_file("lib_lightgbm.so", "237f15e1362a5abab4be0fae14aebba7bb278763f3412a82c50ab9d1fc0dc8bd")
download_file("lib_lightgbm.arm64.so", "748e78afbb275d03b0de114d9d629e3b31e397f052c3fe9fe7d4e2fddc7e536e")
end

task :mac do
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2 changes: 1 addition & 1 deletion lib/lightgbm.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@ class << self
attr_accessor :ffi_lib
end
lib_name =
if RbConfig::CONFIG["host_os"] =~ /darwin/i && RbConfig::CONFIG["host_cpu"] =~ /arm|aarch64/i
if !::FFI::Platform.windows? && RbConfig::CONFIG["host_cpu"] =~ /arm|aarch64/i
"lib_lightgbm.arm64.#{::FFI::Platform::LIBSUFFIX}"
else
"lib_lightgbm.#{::FFI::Platform::LIBSUFFIX}"
Expand Down