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from https://patch-diff.githubusercontent.com/raw/RubyCrypto/x25519/pull/36.patch
From 5886507e08488c0ed116b1979a073b78b9495683 Mon Sep 17 00:00:00 2001
From: Eric Long <i@hack3r.moe>
Date: Sat, 15 Apr 2023 02:58:26 +0800
Subject: [PATCH] Add automatic fallback for non-x86_64 targets
---
Rakefile | 2 +-
ext/x25519_precomputed/extconf.rb | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/Rakefile b/Rakefile
index 535697c..6e4f4d3 100644
--- a/Rakefile
+++ b/Rakefile
@@ -7,7 +7,7 @@ CLEAN.include("**/*.o", "**/*.so", "**/*.bundle", "pkg", "tmp")
require "rake/extensiontask"
%w[precomputed ref10].each do |provider|
- next if provider == "precomputed" && RUBY_PLATFORM =~ /arm64-darwin/
+ next if provider == "precomputed" && RUBY_PLATFORM !~ /x86_64|x64/
Rake::ExtensionTask.new("x25519_#{provider}") do |ext|
ext.ext_dir = "ext/x25519_#{provider}"
diff --git a/ext/x25519_precomputed/extconf.rb b/ext/x25519_precomputed/extconf.rb
index 7f2ba4d..b049f98 100644
--- a/ext/x25519_precomputed/extconf.rb
+++ b/ext/x25519_precomputed/extconf.rb
@@ -4,12 +4,12 @@
require "mkmf"
-if RUBY_PLATFORM =~ /arm64-darwin|aarch64-linux/
- File.write("Makefile", "install clean: ;")
-else
+if RUBY_PLATFORM =~ /x86_64|x64/
$CFLAGS << " -Wall -O3 -pedantic -std=c99 -mbmi -mbmi2 -march=haswell"
create_makefile "x25519_precomputed"
+else
+ File.write("Makefile", "install clean: ;")
end
# rubocop:enable Style/GlobalVars
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