Add multiple of the pointer target size

Rakefile

@@ -1,3 +1,16 @@
+require 'pathname'
+require 'rake/clean'
+require_relative 'rakelib/shared'
+
+CLOBBER.include TMP
+
+task :default do
+  sh 'make -C build'
+  sh './build/bin/elna'
+end
+
+desc 'Build the bootstrap compiler'
+task :boot do
 # MacOS:
 # ---
 # CC=gcc-14 CXX=g++-14 \
@@ -8,8 +21,17 @@
 #   --enable-languages=c,c++,elna \
 #   --with-sysroot=/Library/Developer/CommandLineTools/SDKs/MacOSX15.2.sdk \
 #   --prefix=$(realpath ../gcc-install)
-
-task :default do
-  sh 'make -C build'
-  sh './build/bin/elna'
+end
+
+desc 'Build cross toolchain'
+task :cross, [:target] do |_, args|
+  args.with_defaults target: 'riscv32-unknown-linux-gnu'
+
+  Rake::Task['cross:binutils'].invoke args[:target]
+  Rake::Task['cross:gcc1'].invoke args[:target]
+  Rake::Task['cross:headers'].invoke args[:target]
+  Rake::Task['cross:kernel'].invoke args[:target]
+  Rake::Task['cross:glibc'].invoke args[:target]
+  Rake::Task['cross:gcc2'].invoke args[:target]
+  Rake::Task['cross:init'].invoke args[:target]
 end