From 2043ab43e5e4750b23f0780c2ae672903426672f Mon Sep 17 00:00:00 2001
From: Yuta Saito <kateinoigakukun@gmail.com>
Date: Tue, 1 Mar 2022 19:21:45 +0000
Subject: [PATCH] Prepare objdir before make ext

---
 Rakefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Rakefile b/Rakefile
index 0934ad7748..a481020ec0 100644
--- a/Rakefile
+++ b/Rakefile
@@ -189,10 +189,11 @@ namespace :build do
           raise "unknown target: #{params[:target]}"
         end
         make_args << %Q(RUBY_INCLUDE_FLAGS="-I#{src_dir}/include -I#{build.build_dir}/.ext/include/wasm32-wasi")
-        make_args << %Q(OBJDIR=#{build.ext_build_dir})
         libs = BUILD_PROFILES[params[:profile]][:user_exts]
         libs.each do |lib|
-          make_cmd = %Q(make -C "#{base_dir}/ext/#{lib}" #{make_args.join(" ")} OBJDIR=#{build.ext_build_dir}/#{lib} obj)
+          objdir = "#{build.ext_build_dir}/#{lib}"
+          FileUtils.mkdir_p objdir
+          make_cmd = %Q(make -C "#{base_dir}/ext/#{lib}" #{make_args.join(" ")} OBJDIR=#{objdir} obj)
           sh make_cmd
         end
         mkdir_p File.dirname(build.extinit_obj)