Correctly handle `OTHER_LDFLAGS` for targets with inherit search paths and source pods.

CHANGELOG.md

@@ -14,6 +14,11 @@ To install release candidates run `[sudo] gem install cocoapods --pre`
 
 ##### Bug Fixes
 
+* Correctly handle `OTHER_LDFLAGS` for targets with inherit search paths and source pods.  
+  [Justin Martin](https://github.com/justinseanmartin)
+  [Dimitris Koutsogiorgas](https://github.com/dnkoutso)
+  [#6481](https://github.com/CocoaPods/CocoaPods/pull/6481)
+
 * Do not generate `UIRequiredDeviceCapabilities` for `tvOS` Info.plists.  
   [Dimitris Koutsogiorgas](https://github.com/dnkoutso)
   [#6193](https://github.com/CocoaPods/CocoaPods/issues/6193)

lib/cocoapods/generator/xcconfig/aggregate_xcconfig.rb

@@ -198,11 +198,11 @@ module Pod
             if pod_target.requires_frameworks?
               %(-framework "#{pod_target.product_basename}")
             else
-              %(-l "#{pod_target.product_basename}")
+              %(-l "#{pod_target.product_basename}") if XCConfigHelper.links_dependency?(target, pod_target)
             end
           end
 
-          @xcconfig.merge!('OTHER_LDFLAGS' => other_ld_flags.join(' '))
+          @xcconfig.merge!('OTHER_LDFLAGS' => other_ld_flags.compact.join(' '))
         end
 
         # Ensure to add the default linker run path search paths as they could

lib/cocoapods/generator/xcconfig/xcconfig_helper.rb

@@ -103,11 +103,11 @@ module Pod
         #
         def self.add_static_dependency_build_settings(aggregate_target, pod_target, xcconfig, file_accessor)
           file_accessor.vendored_static_frameworks.each do |vendored_static_framework|
-            adds_other_ldflags = XCConfigHelper.links_static_dependency?(aggregate_target, pod_target)
+            adds_other_ldflags = XCConfigHelper.links_dependency?(aggregate_target, pod_target)
             XCConfigHelper.add_framework_build_settings(vendored_static_framework, xcconfig, pod_target.sandbox.root, adds_other_ldflags)
           end
           file_accessor.vendored_static_libraries.each do |vendored_static_library|
-            adds_other_ldflags = XCConfigHelper.links_static_dependency?(aggregate_target, pod_target)
+            adds_other_ldflags = XCConfigHelper.links_dependency?(aggregate_target, pod_target)
             XCConfigHelper.add_library_build_settings(vendored_static_library, xcconfig, pod_target.sandbox.root, adds_other_ldflags)
           end
         end
@@ -122,15 +122,10 @@ module Pod
         #         of the aggregate target. Aggregate targets that inherit search paths will only link
         #         if the target has explicitly declared the pod dependency.
         #
-        def self.links_static_dependency?(aggregate_target, pod_target)
-          return true if aggregate_target.nil? || aggregate_target.target_definition.inheritance != 'search_paths'
-          # Only link this static  dependency if its explicitly defined for this target.
-          aggregate_target.target_definition.non_inherited_dependencies.each do |d|
-            if d.name == pod_target.name
-              return true
-            end
-          end
-          false
+        def self.links_dependency?(aggregate_target, pod_target)
+          return true if aggregate_target.nil? || aggregate_target.target_definition.inheritance == 'complete'
+          targets = aggregate_target.pod_targets - aggregate_target.search_paths_aggregate_targets.flat_map(&:pod_targets)
+          targets.include?(pod_target)
         end
 
         # Adds build settings for dynamic vendored frameworks and libraries.

spec/unit/generator/xcconfig/xcconfig_helper_spec.rb

@@ -233,8 +233,8 @@ module Pod
           end
 
           it 'should not include static framework other ld flags when inheriting search paths' do
-            target_definition = stub(:inheritance => 'search_paths', :non_inherited_dependencies => [])
-            aggregate_target = stub(:target_definition => target_definition, :pod_targets => [])
+            target_definition = stub(:inheritance => 'search_paths')
+            aggregate_target = stub(:target_definition => target_definition, :pod_targets => [], :search_paths_aggregate_targets => [])
             pod_target = stub(:sandbox => config.sandbox)
             xcconfig = Xcodeproj::Config.new
             @sut.add_static_dependency_build_settings(aggregate_target, pod_target, xcconfig, @accessor)
@@ -244,10 +244,9 @@ module Pod
           end
 
           it 'should include static framework other ld flags when inheriting search paths but explicitly declared' do
-            dependency = stub(:name => 'BananaLib')
-            target_definition = stub(:inheritance => 'search_paths', :non_inherited_dependencies => [dependency])
+            target_definition = stub(:inheritance => 'search_paths')
             pod_target = stub(:name => 'BananaLib', :sandbox => config.sandbox)
-            aggregate_target = stub(:target_definition => target_definition, :pod_targets => [pod_target])
+            aggregate_target = stub(:target_definition => target_definition, :pod_targets => [pod_target], :search_paths_aggregate_targets => [])
             xcconfig = Xcodeproj::Config.new
             @sut.add_static_dependency_build_settings(aggregate_target, pod_target, xcconfig, @accessor)
             xcconfig.to_hash['LIBRARY_SEARCH_PATHS'].should == '$(inherited) "${PODS_ROOT}/../../spec/fixtures/banana-lib"'
@@ -274,6 +273,60 @@ module Pod
             xcconfig.to_hash['FRAMEWORK_SEARCH_PATHS'].should == '"${PODS_ROOT}/../../spec/fixtures/banana-lib"'
             xcconfig.to_hash['OTHER_LDFLAGS'].should == '-l"Bananalib" -framework "Bananalib"'
           end
+
+          it 'should link static dependency for pod targets' do
+            pod_target = stub(:name => 'BananaLib', :sandbox => config.sandbox)
+            @sut.links_dependency?(nil, pod_target).should.be.true
+          end
+
+          it 'should link static dependency when target explicitly specifies it' do
+            target_definition = stub(:inheritance => 'complete')
+            pod_target = stub(:name => 'BananaLib', :sandbox => config.sandbox)
+            aggregate_target = stub(:target_definition => target_definition, :pod_targets => [pod_target], :search_paths_aggregate_targets => [])
+            @sut.links_dependency?(aggregate_target, pod_target).should.be.true
+          end
+
+          it 'should link static dependency when target explicitly specifies it even with search paths' do
+            target_definition = stub(:inheritance => 'search_paths')
+            pod_target = stub(:name => 'BananaLib', :sandbox => config.sandbox)
+            aggregate_target = stub(:target_definition => target_definition, :pod_targets => [pod_target], :search_paths_aggregate_targets => [])
+            @sut.links_dependency?(aggregate_target, pod_target).should.be.true
+          end
+
+          it 'should not link static dependency when inheriting search paths and parent includes dependency' do
+            parent_target_definition = stub
+            child_target_definition = stub(:inheritance => 'search_paths')
+            pod_target = stub(:name => 'BananaLib', :sandbox => config.sandbox)
+            parent_aggregate_target = stub(:target_definition => parent_target_definition, :pod_targets => [pod_target], :search_paths_aggregate_targets => [])
+            child_aggregate_target = stub(:target_definition => child_target_definition, :pod_targets => [], :search_paths_aggregate_targets => [parent_aggregate_target])
+            @sut.links_dependency?(child_aggregate_target, pod_target).should.be.false
+          end
+
+          it 'should link static transitive dependencies if the parent does not link them' do
+            child_pod_target = stub(:name => 'ChildPod', :sandbox => config.sandbox)
+            parent_pod_target = stub(:name => 'ParentPod', :sandbox => config.sandbox, :dependent_targets => [child_pod_target])
+
+            parent_target_definition = stub
+            child_target_definition = stub(:inheritance => 'search_paths')
+
+            parent_aggregate_target = stub(:target_definition => parent_target_definition, :pod_targets => [], :search_paths_aggregate_targets => [])
+            child_aggregate_target = stub(:target_definition => child_target_definition, :pod_targets => [parent_pod_target, child_pod_target], :search_paths_aggregate_targets => [parent_aggregate_target])
+            @sut.links_dependency?(child_aggregate_target, child_pod_target).should.be.true
+            @sut.links_dependency?(child_aggregate_target, parent_pod_target).should.be.true
+          end
+
+          it 'should link static only transitive dependencies that the parent does not link' do
+            child_pod_target = stub(:name => 'ChildPod', :sandbox => config.sandbox)
+            parent_pod_target = stub(:name => 'ParentPod', :sandbox => config.sandbox, :dependent_targets => [child_pod_target])
+
+            parent_target_definition = stub
+            child_target_definition = stub(:inheritance => 'search_paths')
+
+            parent_aggregate_target = stub(:target_definition => parent_target_definition, :pod_targets => [child_pod_target], :search_paths_aggregate_targets => [])
+            child_aggregate_target = stub(:target_definition => child_target_definition, :pod_targets => [parent_pod_target, child_pod_target], :search_paths_aggregate_targets => [parent_aggregate_target])
+            @sut.links_dependency?(child_aggregate_target, child_pod_target).should.be.false
+            @sut.links_dependency?(child_aggregate_target, parent_pod_target).should.be.true
+          end
         end
 
         #---------------------------------------------------------------------#