From b14851903c258b62968581f26ab9537f89b37456 Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Fri, 29 Aug 2014 19:38:32 -0500
Subject: [PATCH] Add a method for retrieving only flags from ARGV

---
 Library/Homebrew/build.rb          | 2 +-
 Library/Homebrew/extend/ARGV.rb    | 4 ++++
 Library/Homebrew/software_spec.rb  | 2 +-
 Library/Homebrew/test/test_ARGV.rb | 5 +++++
 4 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/Library/Homebrew/build.rb b/Library/Homebrew/build.rb
index c7211f0321..90f2fc199c 100644
--- a/Library/Homebrew/build.rb
+++ b/Library/Homebrew/build.rb
@@ -186,7 +186,7 @@ begin
   trap("INT", old_trap)
 
   formula = ARGV.formulae.first
-  options = Options.create(ARGV.options_only)
+  options = Options.create(ARGV.flags_only)
   build   = Build.new(formula, options)
   build.install
 rescue Exception => e
diff --git a/Library/Homebrew/extend/ARGV.rb b/Library/Homebrew/extend/ARGV.rb
index 1bb0b97010..dd695e4cb0 100644
--- a/Library/Homebrew/extend/ARGV.rb
+++ b/Library/Homebrew/extend/ARGV.rb
@@ -7,6 +7,10 @@ module HomebrewArgvExtension
     select { |arg| arg.start_with?("-") }
   end
 
+  def flags_only
+    select { |arg| arg.start_with?("--") }
+  end
+
   def formulae
     require "formula"
     @formulae ||= downcased_unique_named.map { |name| Formulary.factory(name, spec) }
diff --git a/Library/Homebrew/software_spec.rb b/Library/Homebrew/software_spec.rb
index bce6c7d844..3dbcc0cc57 100644
--- a/Library/Homebrew/software_spec.rb
+++ b/Library/Homebrew/software_spec.rb
@@ -36,7 +36,7 @@ class SoftwareSpec
     @bottle_specification = BottleSpecification.new
     @patches = []
     @options = Options.new
-    @build = BuildOptions.new(Options.create(ARGV.options_only), options)
+    @build = BuildOptions.new(Options.create(ARGV.flags_only), options)
     @compiler_failures = []
   end
 
diff --git a/Library/Homebrew/test/test_ARGV.rb b/Library/Homebrew/test/test_ARGV.rb
index 7403acf7c8..fe50621cd5 100644
--- a/Library/Homebrew/test/test_ARGV.rb
+++ b/Library/Homebrew/test/test_ARGV.rb
@@ -30,6 +30,11 @@ class ArgvExtensionTests < Homebrew::TestCase
     assert_equal %w[--foo -vds], @argv.options_only
   end
 
+  def test_flags_only
+    @argv << "--foo" << "-vds" << "a" << "b" << "cdefg"
+    assert_equal %w[--foo], @argv.flags_only
+  end
+
   def test_empty_argv
     assert_empty @argv.named
     assert_empty @argv.kegs