[Analyzer] support multiple values in ARCHS

Targets defining custom values for the `ARCHS` build setting
require support libs to be built with at least those same settings
to be usable.

CHANGELOG.md

@@ -2,20 +2,20 @@
 
 To install or update CocoaPods see this [guide](http://docs.cocoapods.org/guides/installing_cocoapods.html).
 
-
 ## Master
 
-* Display indication for deprecated pods when searching for pods
+* Display indication for deprecated pods when searching for Pods. 
   [Hugo Tunius][k0nserv]
   [#2180](https://github.com/CocoaPods/CocoaPods/issues/2180)
 
 ##### Bug Fixes
 
-* Fixed pod repo push to first check if Specs directory exists and if so push there.
+* Fixed pod repo push to first check if Specs directory exists and if so push
+  there.  
   [Edward Valentini](edwardvalentini)
   [#2060](https://github.com/CocoaPods/CocoaPods/issues/2060)
 
-* Fixed `pod outdated` to not include subspecs.
+* Fixed `pod outdated` to not include subspecs.  
   [Ash Furrow](ashfurrow)
   [#2136](https://github.com/CocoaPods/CocoaPods/issues/2136)
 
@@ -33,11 +33,14 @@ To install or update CocoaPods see this [guide](http://docs.cocoapods.org/guides
   [Paddy O'Brien](tapi)
   [#2181](https://github.com/CocoaPods/CocoaPods/issues/2181)
 
-
-* Fixed missing XCTest framework in Xcode 6
+* Fixed missing XCTest framework in Xcode 6.  
   [Paul Williamson](squarefrog)
   [#2296](https://github.com/CocoaPods/CocoaPods/issues/2296)
 
+* Support multiple values in ARCHS.  
+  [Robert Zuber](https://github.com/z00b)
+  [#1904](https://github.com/CocoaPods/CocoaPods/issues/1904)
+
 
 ## 0.33.1
 
@@ -244,12 +247,11 @@ To install or update CocoaPods see this [guide](http://docs.cocoapods.org/guides
   [Fabio Pelosin][irrationalfab]
   [#1021](https://github.com/CocoaPods/CocoaPods/issues/1021)
 
-
-
 * Warn when including deprecated pods
   [Samuel E. Giddins](https://github.com/segiddins)
   [#2003](https://github.com/CocoaPods/CocoaPods/issues/2003)
 
+
 ## 0.31.1
 [CocoaPods](https://github.com/CocoaPods/CocoaPods/compare/0.31.1...0.31.0)
 • [CocoaPods-Core](https://github.com/CocoaPods/Core/compare/0.31.1...0.31.0)

lib/cocoapods/installer/analyzer.rb

@@ -494,12 +494,8 @@ module Pod
         end
 
         archs = archs.compact.uniq.sort
-        if archs.count > 1
-          UI.warn "Found multiple values (`#{archs.join('`, `')}`) for the " \
-          "architectures (`ARCHS`) build setting for the " \
-          "`#{target_definition}` target definition. Using the first."
-        end
-        archs.first
+        UI.puts("Using `ARCHS` setting to build architectures: (`#{archs.join('`, `')}`)")
+        archs.length > 1 ? archs : archs.first
       end
 
       # Precompute the platforms for each target_definition in the Podfile

spec/unit/installer/analyzer_spec.rb

@@ -364,20 +364,20 @@ module Pod
         it "handles an Array of ARCHs defined in a single user target" do
           user_project = Xcodeproj::Project.new('path')
           target = user_project.new_target(:application, 'Target', :ios)
-          target.build_configuration_list.set_setting('ARCHS', 'armv7')
+          target.build_configuration_list.set_setting('ARCHS', ['armv7', 'i386'])
 
           target_definition = Podfile::TargetDefinition.new(:default, nil)
           target_definition.set_platform(:ios, '4.0')
           user_targets = [target]
 
           archs = @analyzer.send(:compute_archs_for_target_definition, target_definition, user_targets)
-          archs.should == 'armv7'
+          ['armv7', 'i386'].each { |a| archs.should.include a }
         end
 
         it "handles an Array of ARCHs defined multiple user targets" do
           user_project = Xcodeproj::Project.new('path')
           targeta = user_project.new_target(:application, 'Target', :ios)
-          targeta.build_configuration_list.set_setting('ARCHS', 'armv7')
+          targeta.build_configuration_list.set_setting('ARCHS', ['armv7', 'armv7s'])
           targetb = user_project.new_target(:application, 'Target', :ios)
           targetb.build_configuration_list.set_setting('ARCHS', ['armv7', 'i386'])
 
@@ -386,9 +386,8 @@ module Pod
           user_targets = [targeta, targetb]
 
           archs = @analyzer.send(:compute_archs_for_target_definition, target_definition, user_targets)
-          archs.should == 'armv7'
+          ['armv7', 'armv7s', 'i386'].each { |a| archs.should.include a }
         end
-
       end
 
       #--------------------------------------#