Add some useful gems for ruby code

1 files changed, 3 insertions, 4 deletions

diff --git a/rakelib/compiler.rake b/rakelib/compiler.rake
index f443407..4731e1d 100644
--- a/rakelib/compiler.rake
+++ b/rakelib/compiler.rake
@@ -11,7 +11,7 @@ CLEAN.include 'build/gcc'
 Rake.application.add_loader('d', Rake::MakefileLoader.new)
 FileList['build/gcc/**/*.d'].each { |file| import file }
 
-rule(/gcc\/.+\.o$/ => ->(file) {
+rule(%r{gcc/.+\.o$} => lambda { |file|
   source = Pathname.new('source') +
     Pathname.new(file).relative_path_from('build/gcc').sub_ext('.elna')
 
@@ -22,9 +22,8 @@ rule(/gcc\/.+\.o$/ => ->(file) {
   sh t.prerequisites.last, '-c', '-MD', '-MP', '-O0', '-g', '-I', 'source', '-o', t.name, t.source.to_s
 end
 
-file 'build/gcc/elna' => FileList['source/**/*.elna'].reject { |file|
-  file != file.downcase
-}.map { |file|
+sources = FileList['source/**/*.elna'].select { |file| file == file.downcase }
+file 'build/gcc/elna' => sources.map { |file|
   Pathname.new('build/gcc') +
     Pathname.new(file).relative_path_from('source').sub_ext('.o')
 } do |t|