diff --git a/BUILD b/BUILD
index d7f0e5a58811ccc791e5848677f87ca892d98212..ff07cd11326451cb19a7823ac6bd7a8a58abca2e 100644
--- a/BUILD
+++ b/BUILD
@@ -853,3 +853,30 @@ cc_binary(
 
 
 
+
+objc_path = "src/objective-c"
+
+rx_library_path = objc_path + "/RxLibrary"
+
+objc_library(
+    name = "rx_library",
+    hdrs = glob([
+        rx_library_path + "/*.h",
+        rx_library_path + "/transformations/*.h",
+    ]),
+    srcs = glob([
+        rx_library_path + "/*.m",
+        rx_library_path + "/transformations/*.m",
+    ]),
+    includes = [objc_path],
+    deps = [
+        ":rx_library_private",
+    ],
+)
+
+objc_library(
+    name = "rx_library_private",
+    hdrs = glob([rx_library_path + "/private/*.h"]),
+    srcs = glob([rx_library_path + "/private/*.m"]),
+    visibility = ["//visibility:private"],
+)
diff --git a/gRPC.podspec b/gRPC.podspec
index cfbac2f62fd182ecf302c0e357e8ba24cff6c88b..e2a2fbba27705d815c18b45351e88f50fbb43d70 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -34,7 +34,6 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
-
 Pod::Spec.new do |s|
   s.name     = 'gRPC'
   s.version  = '0.6.0'
@@ -50,17 +49,19 @@ Pod::Spec.new do |s|
   s.osx.deployment_target = '10.8'
   s.requires_arc = true
 
+  objc_dir = 'src/objective-c'
+
   # Reactive Extensions library for iOS.
-  s.subspec 'RxLibrary' do |rs|
-    rs.source_files = 'src/objective-c/RxLibrary/*.{h,m}',
-                      'src/objective-c/RxLibrary/transformations/*.{h,m}',
-                      'src/objective-c/RxLibrary/private/*.{h,m}'
-    rs.private_header_files = 'src/objective-c/RxLibrary/private/*.h'
+  s.subspec 'RxLibrary' do |ss|
+    src_dir = "#{objc_dir}/RxLibrary"
+    ss.source_files = "#{src_dir}/*.{h,m}", "#{src_dir}/**/*.{h,m}"
+    ss.private_header_files = "#{src_dir}/private/*.h"
+    ss.header_mappings_dir = "#{objc_dir}"
   end
 
   # Core cross-platform gRPC library, written in C.
-  s.subspec 'C-Core' do |cs|
-    cs.source_files = 'src/core/support/env.h',
+  s.subspec 'C-Core' do |ss|
+    ss.source_files = 'src/core/support/env.h',
                       'src/core/support/file.h',
                       'src/core/support/murmur_hash.h',
                       'src/core/support/grpc_string.h',
@@ -357,7 +358,7 @@ Pod::Spec.new do |s|
                       'src/core/census/context.c',
                       'src/core/census/initialize.c'
 
-    cs.private_header_files = 'src/core/support/env.h',
+    ss.private_header_files = 'src/core/support/env.h',
                               'src/core/support/file.h',
                               'src/core/support/murmur_hash.h',
                               'src/core/support/string.h',
@@ -464,11 +465,11 @@ Pod::Spec.new do |s|
                               'src/core/transport/transport_impl.h',
                               'src/core/census/context.h'
 
-    cs.header_mappings_dir = '.'
+    ss.header_mappings_dir = '.'
 
-    cs.requires_arc = false
-    cs.libraries = 'z'
-    cs.dependency 'OpenSSL', '~> 1.0.200'
+    ss.requires_arc = false
+    ss.libraries = 'z'
+    ss.dependency 'OpenSSL', '~> 1.0.200'
   end
 
   # This is a workaround for Cocoapods Issue #1437.
@@ -476,7 +477,7 @@ Pod::Spec.new do |s|
   # It needs to be here (top-level) instead of in the C-Core subspec because Cocoapods doesn't run
   # prepare_command's of subspecs.
   #
-  # TODO(jcanizales): Try out Todd Reed's solution at Issue #1437.
+  # TODO(jcanizales): Try out others' solutions at Issue #1437.
   s.prepare_command = <<-CMD
     # Move contents of include up a level to avoid manually specifying include paths
     cp -r "include/grpc" "."
@@ -484,7 +485,7 @@ Pod::Spec.new do |s|
     DIR_TIME="grpc/support"
     BAD_TIME="$DIR_TIME/time.h"
     GOOD_TIME="$DIR_TIME/grpc_time.h"
-    grep -rl "$BAD_TIME" grpc src/core | xargs sed -i '' -e s@$BAD_TIME@$GOOD_TIME@g
+    grep -rl "$BAD_TIME" grpc src/core src/objective-c/GRPCClient | xargs sed -i '' -e s@$BAD_TIME@$GOOD_TIME@g
     if [ -f "include/$BAD_TIME" ];
     then
       mv -f "include/$BAD_TIME" "include/$GOOD_TIME"
@@ -493,7 +494,7 @@ Pod::Spec.new do |s|
     DIR_STRING="src/core/support"
     BAD_STRING="$DIR_STRING/string.h"
     GOOD_STRING="$DIR_STRING/grpc_string.h"
-    grep -rl "$BAD_STRING" grpc src/core | xargs sed -i '' -e s@$BAD_STRING@$GOOD_STRING@g
+    grep -rl "$BAD_STRING" grpc src/core src/objective-c/GRPCClient | xargs sed -i '' -e s@$BAD_STRING@$GOOD_STRING@g
     if [ -f "$BAD_STRING" ];
     then
       mv -f "$BAD_STRING" "$GOOD_STRING"
@@ -501,25 +502,27 @@ Pod::Spec.new do |s|
   CMD
 
   # Objective-C wrapper around the core gRPC library.
-  s.subspec 'GRPCClient' do |gs|
-    gs.source_files = 'src/objective-c/GRPCClient/*.{h,m}',
-                      'src/objective-c/GRPCClient/private/*.{h,m}'
-    gs.private_header_files = 'src/objective-c/GRPCClient/private/*.h'
-    gs.compiler_flags = '-GCC_WARN_INHIBIT_ALL_WARNINGS', '-w'
+  s.subspec 'GRPCClient' do |ss|
+    src_dir = "#{objc_dir}/GRPCClient"
+    ss.source_files = "#{src_dir}/*.{h,m}", "#{src_dir}/**/*.{h,m}"
+    ss.private_header_files = "#{src_dir}/private/*.h"
+    ss.header_mappings_dir = "#{objc_dir}"
 
-    gs.dependency 'gRPC/C-Core'
-    gs.dependency 'gRPC/RxLibrary'
+    ss.dependency 'gRPC/C-Core'
+    ss.dependency 'gRPC/RxLibrary'
 
     # Certificates, to be able to establish TLS connections:
-    gs.resource_bundles = { 'gRPC' => ['etc/roots.pem'] }
+    ss.resource_bundles = { 'gRPC' => ['etc/roots.pem'] }
   end
 
   # RPC library for ProtocolBuffers, based on gRPC
-  s.subspec 'ProtoRPC' do |ps|
-    ps.source_files = 'src/objective-c/ProtoRPC/*.{h,m}'
+  s.subspec 'ProtoRPC' do |ss|
+    src_dir = "#{objc_dir}/ProtoRPC"
+    ss.source_files = "#{src_dir}/*.{h,m}"
+    ss.header_mappings_dir = "#{objc_dir}"
 
-    ps.dependency 'gRPC/GRPCClient'
-    ps.dependency 'gRPC/RxLibrary'
-    ps.dependency 'Protobuf', '~> 3.0.0-alpha-3'
+    ss.dependency 'gRPC/GRPCClient'
+    ss.dependency 'gRPC/RxLibrary'
+    ss.dependency 'Protobuf', '~> 3.0.0-alpha-3'
   end
 end
diff --git a/src/compiler/objective_c_plugin.cc b/src/compiler/objective_c_plugin.cc
index b5ac2bafa99c1720def0051d09dc1353be1b5261..2b5ab758fcd39383ec7d2157b801eafa1c64920a 100644
--- a/src/compiler/objective_c_plugin.cc
+++ b/src/compiler/objective_c_plugin.cc
@@ -62,8 +62,8 @@ class ObjectiveCGrpcGenerator : public grpc::protobuf::compiler::CodeGenerator {
     {
       // Generate .pbrpc.h
 
-      string imports = string("#import \"") + file_name + ".pbobjc.h\"\n"
-        "#import <gRPC/ProtoService.h>\n";
+      string imports = string("#import \"") + file_name + ".pbobjc.h\"\n\n"
+        "#import <ProtoRPC/ProtoService.h>\n";
 
       // TODO(jcanizales): Instead forward-declare the input and output types
       // and import the files in the .pbrpc.m
@@ -87,10 +87,10 @@ class ObjectiveCGrpcGenerator : public grpc::protobuf::compiler::CodeGenerator {
     {
       // Generate .pbrpc.m
 
-      string imports = string("#import \"") + file_name + ".pbrpc.h\"\n"
-        "#import <gRPC/GRXWriteable.h>\n"
-        "#import <gRPC/GRXWriter+Immediate.h>\n"
-        "#import <gRPC/ProtoRPC.h>\n";
+      string imports = string("#import \"") + file_name + ".pbrpc.h\"\n\n"
+        "#import <ProtoRPC/ProtoRPC.h>\n"
+        "#import <RxLibrary/GRXWriteable.h>\n"
+        "#import <RxLibrary/GRXWriter+Immediate.h>\n";
 
       string definitions;
       for (int i = 0; i < file->service_count(); i++) {
diff --git a/src/objective-c/GRPCClient/GRPCCall.h b/src/objective-c/GRPCClient/GRPCCall.h
index 7b42498d42b978285bf1d17b805cebcb2236fd45..33aae1074759edc967d9eb6229c525a1c5702ecd 100644
--- a/src/objective-c/GRPCClient/GRPCCall.h
+++ b/src/objective-c/GRPCClient/GRPCCall.h
@@ -46,7 +46,7 @@
 // transparently on the same TCP connection.
 
 #import <Foundation/Foundation.h>
-#import <gRPC/GRXWriter.h>
+#import <RxLibrary/GRXWriter.h>
 
 @class GRPCMethodName;
 
diff --git a/src/objective-c/GRPCClient/GRPCCall.m b/src/objective-c/GRPCClient/GRPCCall.m
index a9625a179973daba0816344ad708f2dd2b98054e..77eebeff7615cc12d36aa4de756990be33e6fa29 100644
--- a/src/objective-c/GRPCClient/GRPCCall.m
+++ b/src/objective-c/GRPCClient/GRPCCall.m
@@ -34,7 +34,7 @@
 #import "GRPCCall.h"
 
 #include <grpc/grpc.h>
-#include <grpc/support/grpc_time.h>
+#include <grpc/support/time.h>
 
 #import "GRPCMethodName.h"
 #import "private/GRPCChannel.h"
diff --git a/src/objective-c/GRPCClient/private/GRPCDelegateWrapper.m b/src/objective-c/GRPCClient/private/GRPCDelegateWrapper.m
index 7d5ecb56d9a69a14925a260459e54439adc3d305..59c0565494b107c1678db7c59f8f2ed42f678a31 100644
--- a/src/objective-c/GRPCClient/private/GRPCDelegateWrapper.m
+++ b/src/objective-c/GRPCClient/private/GRPCDelegateWrapper.m
@@ -33,7 +33,7 @@
 
 #import "GRPCDelegateWrapper.h"
 
-#import <gRPC/GRXWriteable.h>
+#import <RxLibrary/GRXWriteable.h>
 
 @interface GRPCDelegateWrapper ()
 // These are atomic so that cancellation can nillify them from any thread.
diff --git a/src/objective-c/GRPCClient/private/GRPCMethodName+HTTP2Encoding.h b/src/objective-c/GRPCClient/private/GRPCMethodName+HTTP2Encoding.h
index 28c7374517c0d3bb3cad6f67e9a8b2523fab1f5c..81c80f2a49228769b0b18ced30b942c6c26bfcf7 100644
--- a/src/objective-c/GRPCClient/private/GRPCMethodName+HTTP2Encoding.h
+++ b/src/objective-c/GRPCClient/private/GRPCMethodName+HTTP2Encoding.h
@@ -33,7 +33,7 @@
 
 #import <Foundation/Foundation.h>
 
-#import "GRPCMethodName.h"
+#import "GRPCClient/GRPCMethodName.h"
 
 @interface GRPCMethodName (HTTP2Encoding)
 - (NSString *)HTTP2Path;
diff --git a/src/objective-c/GRPCClient/private/NSError+GRPC.m b/src/objective-c/GRPCClient/private/NSError+GRPC.m
index f7390476d9a5fd6d6c18b36a8d155130371503b7..638f41cb11e761984f50df94648e852bbb2ce67a 100644
--- a/src/objective-c/GRPCClient/private/NSError+GRPC.m
+++ b/src/objective-c/GRPCClient/private/NSError+GRPC.m
@@ -33,7 +33,7 @@
 
 #import "NSError+GRPC.h"
 
-#include <grpc.h>
+#include <grpc/grpc.h>
 
 NSString * const kGRPCErrorDomain = @"io.grpc";
 
diff --git a/src/objective-c/ProtoRPC/ProtoRPC.h b/src/objective-c/ProtoRPC/ProtoRPC.h
index b6375f52d6fc648e92ffb811729a95c2ca46ac8e..a3833106195f01fd446e9c947f851a974461bea9 100644
--- a/src/objective-c/ProtoRPC/ProtoRPC.h
+++ b/src/objective-c/ProtoRPC/ProtoRPC.h
@@ -32,7 +32,7 @@
  */
 
 #import <Foundation/Foundation.h>
-#import <gRPC/GRPCCall.h>
+#import <GRPCClient/GRPCCall.h>
 
 @interface ProtoRPC : GRPCCall
 
diff --git a/src/objective-c/ProtoRPC/ProtoRPC.m b/src/objective-c/ProtoRPC/ProtoRPC.m
index b8f80084223dffa088833ae3b8a86336abb45460..39120344156fc5c29f8002e24ca0ef9c6810c3dd 100644
--- a/src/objective-c/ProtoRPC/ProtoRPC.m
+++ b/src/objective-c/ProtoRPC/ProtoRPC.m
@@ -33,10 +33,10 @@
 
 #import "ProtoRPC.h"
 
-#import <gRPC/GRXWriteable.h>
-#import <gRPC/GRXWriter.h>
-#import <gRPC/GRXWriter+Transformations.h>
 #import <Protobuf/GPBProtocolBuffers.h>
+#import <RxLibrary/GRXWriteable.h>
+#import <RxLibrary/GRXWriter.h>
+#import <RxLibrary/GRXWriter+Transformations.h>
 
 @implementation ProtoRPC {
   id<GRXWriteable> _responseWriteable;
diff --git a/src/objective-c/ProtoRPC/ProtoService.m b/src/objective-c/ProtoRPC/ProtoService.m
index 453d7b3f1a6bec4408342683b625c0504d5dd50e..47bdb5dc6e87ae27c6a9332eee6179aeec7ff030 100644
--- a/src/objective-c/ProtoRPC/ProtoService.m
+++ b/src/objective-c/ProtoRPC/ProtoService.m
@@ -33,9 +33,9 @@
 
 #import "ProtoService.h"
 
-#import <gRPC/GRPCMethodName.h>
-#import <gRPC/GRXWriteable.h>
-#import <gRPC/GRXWriter.h>
+#import <GRPCClient/GRPCMethodName.h>
+#import <RxLibrary/GRXWriteable.h>
+#import <RxLibrary/GRXWriter.h>
 
 #import "ProtoRPC.h"
 
diff --git a/src/objective-c/RxLibrary/transformations/GRXMappingWriter.h b/src/objective-c/RxLibrary/transformations/GRXMappingWriter.h
index dcebb6132afa8a92ac3754084cfd4760d35ac815..55f6f82f20b1b54853cafdfc5e842f61e00e8682 100644
--- a/src/objective-c/RxLibrary/transformations/GRXMappingWriter.h
+++ b/src/objective-c/RxLibrary/transformations/GRXMappingWriter.h
@@ -31,7 +31,7 @@
  *
  */
 
-#import "GRXWriter.h"
+#import "RxLibrary/GRXWriter.h"
 
 // A "proxy" writer that transforms all the values of its input writer by using a mapping function.
 @interface GRXMappingWriter : GRXWriter
diff --git a/src/objective-c/examples/Sample/Sample/ViewController.m b/src/objective-c/examples/Sample/Sample/ViewController.m
index 0011a4508df6bcfbc3e560a173dc3616e2cf88af..05bd6fa2dbc5c5ba8be85cfc8e2c7a9c89f39952 100644
--- a/src/objective-c/examples/Sample/Sample/ViewController.m
+++ b/src/objective-c/examples/Sample/Sample/ViewController.m
@@ -33,12 +33,12 @@
 
 #import "ViewController.h"
 
-#import <gRPC/GRPCCall.h>
-#import <gRPC/GRPCMethodName.h>
-#import <gRPC/GRXWriter+Immediate.h>
-#import <gRPC/GRXWriteable.h>
+#import <GRPCClient/GRPCCall.h>
+#import <GRPCClient/GRPCMethodName.h>
 #import <RemoteTest/Messages.pbobjc.h>
 #import <RemoteTest/Test.pbrpc.h>
+#import <RxLibrary/GRXWriter+Immediate.h>
+#import <RxLibrary/GRXWriteable.h>
 
 @implementation ViewController
 
diff --git a/src/objective-c/tests/GRPCClientTests.m b/src/objective-c/tests/GRPCClientTests.m
index 268e67af2f07fea2d0c7d454e90cd133d554a0a1..e421127ea1ece2fcc168e4d507f4d183f049cf58 100644
--- a/src/objective-c/tests/GRPCClientTests.m
+++ b/src/objective-c/tests/GRPCClientTests.m
@@ -34,11 +34,11 @@
 #import <UIKit/UIKit.h>
 #import <XCTest/XCTest.h>
 
-#import <gRPC/GRPCCall.h>
-#import <gRPC/GRPCMethodName.h>
-#import <gRPC/GRXWriter+Immediate.h>
-#import <gRPC/GRXWriteable.h>
+#import <GRPCClient/GRPCCall.h>
+#import <GRPCClient/GRPCMethodName.h>
 #import <RemoteTest/Messages.pbobjc.h>
+#import <RxLibrary/GRXWriteable.h>
+#import <RxLibrary/GRXWriter+Immediate.h>
 
 // These are a few tests similar to InteropTests, but which use the generic gRPC client (GRPCCall)
 // rather than a generated proto library on top of it.
diff --git a/src/objective-c/tests/InteropTests.m b/src/objective-c/tests/InteropTests.m
index 0a512c17dcb25eb9699dd6472468ba9d220c1cad..684f7c2ff6fc3b585434c75faf39902dfd669d7e 100644
--- a/src/objective-c/tests/InteropTests.m
+++ b/src/objective-c/tests/InteropTests.m
@@ -36,13 +36,13 @@
 #import <UIKit/UIKit.h>
 #import <XCTest/XCTest.h>
 
-#import <gRPC/GRXWriter+Immediate.h>
-#import <gRPC/GRXBufferedPipe.h>
-#import <gRPC/ProtoRPC.h>
+#import <ProtoRPC/ProtoRPC.h>
 #import <RemoteTest/Empty.pbobjc.h>
 #import <RemoteTest/Messages.pbobjc.h>
 #import <RemoteTest/Test.pbobjc.h>
 #import <RemoteTest/Test.pbrpc.h>
+#import <RxLibrary/GRXBufferedPipe.h>
+#import <RxLibrary/GRXWriter+Immediate.h>
 
 // Convenience constructors for the generated proto messages:
 
diff --git a/src/objective-c/tests/LocalClearTextTests.m b/src/objective-c/tests/LocalClearTextTests.m
index 68ffd232003a1d70940db31d47a07c0e3df9ba2d..05cc10410a1157bda9e63643dbc24d804a9ef77d 100644
--- a/src/objective-c/tests/LocalClearTextTests.m
+++ b/src/objective-c/tests/LocalClearTextTests.m
@@ -34,12 +34,12 @@
 #import <UIKit/UIKit.h>
 #import <XCTest/XCTest.h>
 
-#import <gRPC/GRPCCall.h>
-#import <gRPC/GRPCMethodName.h>
-#import <gRPC/GRXWriter+Immediate.h>
-#import <gRPC/GRXWriteable.h>
+#import <GRPCClient/GRPCCall.h>
+#import <GRPCClient/GRPCMethodName.h>
 #import <RouteGuide/RouteGuide.pbobjc.h>
 #import <RouteGuide/RouteGuide.pbrpc.h>
+#import <RxLibrary/GRXWriteable.h>
+#import <RxLibrary/GRXWriter+Immediate.h>
 
 // These tests require a gRPC "RouteGuide" sample server to be running locally. You can compile and
 // run one by following the instructions here: https://github.com/grpc/grpc-common/blob/master/cpp/cpptutorial.md#try-it-out
diff --git a/src/objective-c/tests/RxLibraryUnitTests.m b/src/objective-c/tests/RxLibraryUnitTests.m
index 89984d9481ce85b228c6c1d43cd0b28fad332641..5e3162875a737a36dfea11d8ea40aebcd1651236 100644
--- a/src/objective-c/tests/RxLibraryUnitTests.m
+++ b/src/objective-c/tests/RxLibraryUnitTests.m
@@ -34,9 +34,9 @@
 #import <UIKit/UIKit.h>
 #import <XCTest/XCTest.h>
 
-#import <gRPC/GRXBufferedPipe.h>
-#import <gRPC/GRXWriter.h>
-#import <gRPC/GRXWriteable.h>
+#import <RxLibrary/GRXBufferedPipe.h>
+#import <RxLibrary/GRXWriteable.h>
+#import <RxLibrary/GRXWriter.h>
 
 // A mock of a GRXSingleValueHandler block that can be queried for how many times it was called and
 // what were the last values passed to it.
diff --git a/templates/BUILD.template b/templates/BUILD.template
index ec5fb3584f00295e418679911b6a0b6d6ec2d782..63e9f9ebeb6f471e2107928f5baf081c93dbb9b8 100644
--- a/templates/BUILD.template
+++ b/templates/BUILD.template
@@ -112,3 +112,30 @@ cc_binary(
   ],
 )
 </%def>
+
+objc_path = "src/objective-c"
+
+rx_library_path = objc_path + "/RxLibrary"
+
+objc_library(
+    name = "rx_library",
+    hdrs = glob([
+        rx_library_path + "/*.h",
+        rx_library_path + "/transformations/*.h",
+    ]),
+    srcs = glob([
+        rx_library_path + "/*.m",
+        rx_library_path + "/transformations/*.m",
+    ]),
+    includes = [objc_path],
+    deps = [
+        ":rx_library_private",
+    ],
+)
+
+objc_library(
+    name = "rx_library_private",
+    hdrs = glob([rx_library_path + "/private/*.h"]),
+    srcs = glob([rx_library_path + "/private/*.m"]),
+    visibility = ["//visibility:private"],
+)
diff --git a/templates/gRPC.podspec.template b/templates/gRPC.podspec.template
index da5e8880df4363d6c5a38d8bbae6d7aa1d06ebd4..02e90d718047ee15a44dc2686eb52ad7e031fe1e 100644
--- a/templates/gRPC.podspec.template
+++ b/templates/gRPC.podspec.template
@@ -59,7 +59,6 @@ def grpc_private_headers(libs):
       out.extend(lib.get('headers', []))
   return out
 %>
-
 Pod::Spec.new do |s|
   s.name     = 'gRPC'
   s.version  = '0.6.0'
@@ -75,25 +74,27 @@ Pod::Spec.new do |s|
   s.osx.deployment_target = '10.8'
   s.requires_arc = true
 
+  objc_dir = 'src/objective-c'
+
   # Reactive Extensions library for iOS.
-  s.subspec 'RxLibrary' do |rs|
-    rs.source_files = 'src/objective-c/RxLibrary/*.{h,m}',
-                      'src/objective-c/RxLibrary/transformations/*.{h,m}',
-                      'src/objective-c/RxLibrary/private/*.{h,m}'
-    rs.private_header_files = 'src/objective-c/RxLibrary/private/*.h'
+  s.subspec 'RxLibrary' do |ss|
+    src_dir = "#{objc_dir}/RxLibrary"
+    ss.source_files = "#{src_dir}/*.{h,m}", "#{src_dir}/**/*.{h,m}"
+    ss.private_header_files = "#{src_dir}/private/*.h"
+    ss.header_mappings_dir = "#{objc_dir}"
   end
 
   # Core cross-platform gRPC library, written in C.
-  s.subspec 'C-Core' do |cs|
-    cs.source_files = ${(',\n' + 22*' ').join('\'%s\'' % f for f in grpc_files(libs))}
+  s.subspec 'C-Core' do |ss|
+    ss.source_files = ${(',\n' + 22*' ').join('\'%s\'' % f for f in grpc_files(libs))}
 
-    cs.private_header_files = ${(',\n' + 30*' ').join('\'%s\'' % f for f in grpc_private_headers(libs))}
+    ss.private_header_files = ${(',\n' + 30*' ').join('\'%s\'' % f for f in grpc_private_headers(libs))}
 
-    cs.header_mappings_dir = '.'
+    ss.header_mappings_dir = '.'
 
-    cs.requires_arc = false
-    cs.libraries = 'z'
-    cs.dependency 'OpenSSL', '~> 1.0.200'
+    ss.requires_arc = false
+    ss.libraries = 'z'
+    ss.dependency 'OpenSSL', '~> 1.0.200'
   end
 
   # This is a workaround for Cocoapods Issue #1437.
@@ -101,7 +102,7 @@ Pod::Spec.new do |s|
   # It needs to be here (top-level) instead of in the C-Core subspec because Cocoapods doesn't run
   # prepare_command's of subspecs.
   #
-  # TODO(jcanizales): Try out Todd Reed's solution at Issue #1437.
+  # TODO(jcanizales): Try out others' solutions at Issue #1437.
   s.prepare_command = <<-CMD
     # Move contents of include up a level to avoid manually specifying include paths
     cp -r "include/grpc" "."
@@ -109,7 +110,7 @@ Pod::Spec.new do |s|
     DIR_TIME="grpc/support"
     BAD_TIME="$DIR_TIME/time.h"
     GOOD_TIME="$DIR_TIME/grpc_time.h"
-    grep -rl "$BAD_TIME" grpc src/core | xargs sed -i '' -e s@$BAD_TIME@$GOOD_TIME@g
+    grep -rl "$BAD_TIME" grpc src/core src/objective-c/GRPCClient | xargs sed -i '' -e s@$BAD_TIME@$GOOD_TIME@g
     if [ -f "include/$BAD_TIME" ];
     then
       mv -f "include/$BAD_TIME" "include/$GOOD_TIME"
@@ -118,7 +119,7 @@ Pod::Spec.new do |s|
     DIR_STRING="src/core/support"
     BAD_STRING="$DIR_STRING/string.h"
     GOOD_STRING="$DIR_STRING/grpc_string.h"
-    grep -rl "$BAD_STRING" grpc src/core | xargs sed -i '' -e s@$BAD_STRING@$GOOD_STRING@g
+    grep -rl "$BAD_STRING" grpc src/core src/objective-c/GRPCClient | xargs sed -i '' -e s@$BAD_STRING@$GOOD_STRING@g
     if [ -f "$BAD_STRING" ];
     then
       mv -f "$BAD_STRING" "$GOOD_STRING"
@@ -126,25 +127,27 @@ Pod::Spec.new do |s|
   CMD
 
   # Objective-C wrapper around the core gRPC library.
-  s.subspec 'GRPCClient' do |gs|
-    gs.source_files = 'src/objective-c/GRPCClient/*.{h,m}',
-                      'src/objective-c/GRPCClient/private/*.{h,m}'
-    gs.private_header_files = 'src/objective-c/GRPCClient/private/*.h'
-    gs.compiler_flags = '-GCC_WARN_INHIBIT_ALL_WARNINGS', '-w'
+  s.subspec 'GRPCClient' do |ss|
+    src_dir = "#{objc_dir}/GRPCClient"
+    ss.source_files = "#{src_dir}/*.{h,m}", "#{src_dir}/**/*.{h,m}"
+    ss.private_header_files = "#{src_dir}/private/*.h"
+    ss.header_mappings_dir = "#{objc_dir}"
 
-    gs.dependency 'gRPC/C-Core'
-    gs.dependency 'gRPC/RxLibrary'
+    ss.dependency 'gRPC/C-Core'
+    ss.dependency 'gRPC/RxLibrary'
 
     # Certificates, to be able to establish TLS connections:
-    gs.resource_bundles = { 'gRPC' => ['etc/roots.pem'] }
+    ss.resource_bundles = { 'gRPC' => ['etc/roots.pem'] }
   end
 
   # RPC library for ProtocolBuffers, based on gRPC
-  s.subspec 'ProtoRPC' do |ps|
-    ps.source_files = 'src/objective-c/ProtoRPC/*.{h,m}'
-
-    ps.dependency 'gRPC/GRPCClient'
-    ps.dependency 'gRPC/RxLibrary'
-    ps.dependency 'Protobuf', '~> 3.0.0-alpha-3'
+  s.subspec 'ProtoRPC' do |ss|
+    src_dir = "#{objc_dir}/ProtoRPC"
+    ss.source_files = "#{src_dir}/*.{h,m}"
+    ss.header_mappings_dir = "#{objc_dir}"
+
+    ss.dependency 'gRPC/GRPCClient'
+    ss.dependency 'gRPC/RxLibrary'
+    ss.dependency 'Protobuf', '~> 3.0.0-alpha-3'
   end
 end