Index: ../tools/v2/build.rb
===================================================================
--- ../tools/v2/build.rb	(リビジョン 50751)
+++ ../tools/v2/build.rb	(作業コピー)
@@ -849,6 +849,10 @@
       throw :exit_buildme, ret
     end
 
+    # 排他制御
+    build_lock = File.open("#{Dir.pwd}/#{pkg}/#{pkg}.spec","r");
+    build_lock.flock(File::LOCK_EX)
+
     # ビルド開始
 
     # ログの保存を開始する
@@ -878,6 +882,10 @@
     
     # rpmbuild を実行
     throw :exit_buildme, do_rpmbuild(hTAG, log_file)    
+
+    # 排他制御を終了
+    build_lock.flock(File::LOCK_UN)
+
   end
   
 ensure