Use env DSL

2 files changed, 3 insertions, 5 deletions

diff --git a/Library/Formula/mkvtoolnix.rb b/Library/Formula/mkvtoolnix.rb
index 12d3ad772..8080059c0 100644
--- a/Library/Formula/mkvtoolnix.rb
+++ b/Library/Formula/mkvtoolnix.rb
@@ -9,10 +9,8 @@ class Ruby19 < Requirement
     Version.new(version.to_s) >= Version.new("1.9")
   end
 
-  def modify_build_environment
-    ruby = which "ruby"
-    return unless ruby
-    ENV.prepend_path "PATH", ruby.dirname
+  env do
+    ENV.prepend_path "PATH", which("ruby").dirname
   end
 
   def message; <<-EOS.undent
diff --git a/Library/Homebrew/requirements/python_dependency.rb b/Library/Homebrew/requirements/python_dependency.rb
index 1db0bc811..750db6c53 100644
--- a/Library/Homebrew/requirements/python_dependency.rb
+++ b/Library/Homebrew/requirements/python_dependency.rb
@@ -18,7 +18,7 @@ class PythonDependency < Requirement
     build? || system_python?
   end
 
-  def modify_build_environment
+  env do
     if system_python?
       if python_binary == "python"
         version = python_short_version