3 files changed, 6 insertions, 6 deletions
diff --git a/Library/Homebrew/os/mac.rb b/Library/Homebrew/os/mac.rb
index dba2480ef..bc384da30 100644
--- a/Library/Homebrew/os/mac.rb
+++ b/Library/Homebrew/os/mac.rb
@@ -90,7 +90,7 @@ module OS
       @locator ||= SDKLocator.new
       begin
         sdk = if v.nil?
-          Xcode.version.to_i >= 7 ? @locator.latest_sdk : @locator.sdk_for(version)
+          (Xcode.version.to_i >= 7) ? @locator.latest_sdk : @locator.sdk_for(version)
         else
           @locator.sdk_for v
         end
diff --git a/Library/Homebrew/os/mac/architecture_list.rb b/Library/Homebrew/os/mac/architecture_list.rb
index 595c8f169..6f498c51f 100644
--- a/Library/Homebrew/os/mac/architecture_list.rb
+++ b/Library/Homebrew/os/mac/architecture_list.rb
@@ -28,12 +28,12 @@ module ArchitectureListExtension
   end
 
   def ppc?
-    (Hardware::CPU::PPC_32BIT_ARCHS+Hardware::CPU::PPC_64BIT_ARCHS).any? { |a| include? a }
+    (Hardware::CPU::PPC_32BIT_ARCHS + Hardware::CPU::PPC_64BIT_ARCHS).any? { |a| include? a }
   end
 
   # @private
   def remove_ppc!
-    (Hardware::CPU::PPC_32BIT_ARCHS+Hardware::CPU::PPC_64BIT_ARCHS).each { |a| delete a }
+    (Hardware::CPU::PPC_32BIT_ARCHS + Hardware::CPU::PPC_64BIT_ARCHS).each { |a| delete a }
   end
 
   def as_arch_flags
diff --git a/Library/Homebrew/os/mac/linkage_checker.rb b/Library/Homebrew/os/mac/linkage_checker.rb
index e72227fc4..6720ddcbe 100644
--- a/Library/Homebrew/os/mac/linkage_checker.rb
+++ b/Library/Homebrew/os/mac/linkage_checker.rb
@@ -62,10 +62,10 @@ class LinkageChecker
     declared_deps = formula.deps.reject { |dep| filter_out.call(dep) }.map(&:name)
     declared_requirement_deps = formula.requirements.reject { |req| filter_out.call(req) }.map(&:default_formula).compact
     declared_dep_names = (declared_deps + declared_requirement_deps).map { |dep| dep.split("/").last }
-    undeclared_deps = @brewed_dylibs.keys.select do |full_name|
+    undeclared_deps = @brewed_dylibs.keys.reject do |full_name|
       name = full_name.split("/").last
-      next false if name == formula.name
-      !declared_dep_names.include?(name)
+      next true if name == formula.name
+      declared_dep_names.include?(name)
     end
     undeclared_deps.sort do |a, b|
       if a.include?("/") && !b.include?("/")