2 files changed, 10 insertions, 3 deletions
diff --git a/Library/Homebrew/install.rb b/Library/Homebrew/install.rb
index 62703ee42..9f8e8c689 100755
--- a/Library/Homebrew/install.rb
+++ b/Library/Homebrew/install.rb
@@ -66,9 +66,7 @@ def install f
 
   if ARGV.verbose?
     ohai "Build Environment"
-    %w[PATH CFLAGS LDFLAGS CPPFLAGS MAKEFLAGS CC CXX MACOSX_DEPLOYMENT_TARGET PKG_CONFIG_PATH].each do |env|
-      puts "#{env}: #{ENV[env]}" unless ENV[env].to_s.empty?
-    end
+    dump_build_env ENV
   end
 
   build_time = nil
diff --git a/Library/Homebrew/utils.rb b/Library/Homebrew/utils.rb
index 57f28f101..700b0acf1 100644
--- a/Library/Homebrew/utils.rb
+++ b/Library/Homebrew/utils.rb
@@ -213,3 +213,12 @@ def nostdout
     end
   end
 end
+
+def dump_build_env env
+  puts "\"--use-llvm\" was specified" if ARGV.include? '--use-llvm'
+
+  %w[CC CXX LD CFLAGS CXXFLAGS CPPFLAGS LDFLAGS MACOSX_DEPLOYMENT_TARGET MAKEFLAGS PATH PKG_CONFIG_PATH HOMEBREW_USE_LLVM].each do |k|
+    value = env[k]
+    puts "#{k}: #{value}" if value
+  end
+end
+\ No newline at end of file