3 files changed, 5 insertions, 4 deletions
diff --git a/lib/mruby/build/command.rb b/lib/mruby/build/command.rb
index 854346a7e..e6becd3f6 100644
--- a/lib/mruby/build/command.rb
+++ b/lib/mruby/build/command.rb
@@ -308,8 +308,8 @@ module MRuby
     def run(out, infiles, funcname, cdump = true)
       @command ||= @build.mrbcfile
       infiles = [infiles].flatten
-      infiles.each do |f|
-        _pp "MRBC", f.relative_path, nil, :indent => 2
+      infiles.each_with_index do |f, i|
+        _pp i == 0 ? "MRBC" : "", f.relative_path, indent: 2
       end
       cmd = %Q["#{filename @command}" #{cdump ? "-S" : ""} #{@compile_options % {:funcname => funcname}} #{filename(infiles).map{|f| %Q["#{f}"]}.join(' ')}]
       puts cmd if Rake.verbose
diff --git a/lib/mruby/core_ext.rb b/lib/mruby/core_ext.rb
index 47a47d8c8..3b2406c36 100644
--- a/lib/mruby/core_ext.rb
+++ b/lib/mruby/core_ext.rb
@@ -26,10 +26,10 @@ def install_D(src, dst)
   cp src, dst
 end
 
-def _pp(cmd, src, tgt=nil, options={})
+def _pp(cmd, src, tgt=nil, indent: nil)
   return if Rake.verbose
 
   width = 5
-  template = options[:indent] ? "%#{width*options[:indent]}s %s %s" : "%-#{width}s %s %s"
+  template = indent ? "%#{width * indent}s %s %s" : "%-#{width}s %s %s"
   puts template % [cmd, src, tgt ? "-> #{tgt}" : nil]
 end
diff --git a/lib/mruby/gem.rb b/lib/mruby/gem.rb
index f506e5442..e01dffe84 100644
--- a/lib/mruby/gem.rb
+++ b/lib/mruby/gem.rb
@@ -184,6 +184,7 @@ module MRuby
       end
 
       def generate_gem_init(fname)
+        _pp "GEN", fname.relative_path
         open(fname, 'w') do |f|
           print_gem_init_header f
           unless rbfiles.empty?