From ab353593a96a014243411fdd7e7e56dade3b9b25 Mon Sep 17 00:00:00 2001
From: graial <al@paglalayag.net>
Date: Fri, 4 Sep 2026 17:43:14 +0800
Subject: [PATCH 1/2] update pr for later after filing predicate bugfix
 separately

---
 Rakefile                               |  3 ++-
 lib/ruby_wasm/build/product/product.rb |  2 ++
 lib/ruby_wasm/build/toolchain.rb       | 13 +++++++++++++
 sig/ruby_wasm/build.rbs                |  4 ++++
 4 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/Rakefile b/Rakefile
index 71b4f288e..b723298ec 100644
--- a/Rakefile
+++ b/Rakefile
@@ -16,7 +16,8 @@ BUILDS =
   BUILD_SOURCES
     .product(BUILD_PROFILES)
     .map { |src, profile| [src, "wasm32-unknown-wasip1", profile] } +
-    BUILD_SOURCES.map { |src| [src, "wasm32-unknown-emscripten", "full"] }
+    BUILD_SOURCES.map { |src| [src, "wasm32-unknown-emscripten", "full"] } +
+    BUILD_SOURCES.map { |src| [src, "wasm32-unknown-icp", "minimal"] }
 
 NPM_PACKAGES = [
   {
diff --git a/lib/ruby_wasm/build/product/product.rb b/lib/ruby_wasm/build/product/product.rb
index 726517c3a..2a24fda1d 100644
--- a/lib/ruby_wasm/build/product/product.rb
+++ b/lib/ruby_wasm/build/product/product.rb
@@ -17,6 +17,8 @@ def system_triplet_args
         args.concat(%W[--host wasm32-wasi])
       when "wasm32-unknown-emscripten"
         args.concat(%W[--host wasm32-emscripten])
+      when "wasm32-unknown-icp"
+        args.concat(%W[--host wasm32-wasi])
       else
         raise "unknown target: #{@target.triple}"
       end
diff --git a/lib/ruby_wasm/build/toolchain.rb b/lib/ruby_wasm/build/toolchain.rb
index 35e67f682..6206d3579 100644
--- a/lib/ruby_wasm/build/toolchain.rb
+++ b/lib/ruby_wasm/build/toolchain.rb
@@ -33,6 +33,13 @@ def self.get(target, options, build_dir = nil)
         )
       when "wasm32-unknown-emscripten"
         return RubyWasm::Emscripten.new
+      when "wasm32-unknown-icp"
+        return(
+          RubyWasm::Icp.new(
+            build_dir: build_dir,
+            version: options[:wasi_sdk_version]
+          )
+        )
       else
         raise "unknown target: #{target}"
       end
@@ -295,4 +302,10 @@ def find_tool(name)
       @tools[name]
     end
   end
+
+  class Icp < WASISDK
+    def name
+      "icp"
+    end
+  end
 end
diff --git a/sig/ruby_wasm/build.rbs b/sig/ruby_wasm/build.rbs
index 663e2a55f..f6f66b698 100644
--- a/sig/ruby_wasm/build.rbs
+++ b/sig/ruby_wasm/build.rbs
@@ -272,6 +272,10 @@ module RubyWasm
     def wasi_sysroot?: -> bool
   end
 
+  class Icp < WASISDK
+    def name: -> String
+  end
+
   class Binaryen
     @need_fetch_binaryen: bool
     @binaryen_path: String

From c71947f7937fbcd45ee31f328e1bc017e558048f Mon Sep 17 00:00:00 2001
From: graial <al@paglalayag.net>
Date: Mon, 14 Sep 2026 07:52:27 +0800
Subject: [PATCH 2/2] update readme

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 143fbcfef..2b5c0ef32 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+**This fork is the ongoing development of an IC deployable ruby build and discussion around what, if any, belongs in the upstream branch. Active development is on the `release` branch**
+
 # ruby.wasm
 
 [![Build ruby.wasm](https://github.com/ruby/ruby.wasm/actions/workflows/build.yml/badge.svg?branch=main)](https://github.com/ruby/ruby.wasm/actions/workflows/build.yml)