diff --git a/cmake/libprotobuf-lite.cmake b/cmake/libprotobuf-lite.cmake
index db55ea92fd..e323840a17 100644
--- a/cmake/libprotobuf-lite.cmake
+++ b/cmake/libprotobuf-lite.cmake
@@ -24,6 +24,7 @@ set(libprotobuf_lite_files
 
 add_library(libprotobuf-lite ${libprotobuf_lite_files})
 target_link_libraries(libprotobuf-lite ${CMAKE_THREAD_LIBS_INIT})
+target_include_directories(libprotobuf-lite PUBLIC ${protobuf_source_dir}/src)
 set_target_properties(libprotobuf-lite PROPERTIES
     COMPILE_DEFINITIONS LIBPROTOBUF_EXPORTS
     OUTPUT_NAME ${LIB_PREFIX}protobuf-lite)
diff --git a/cmake/libprotobuf.cmake b/cmake/libprotobuf.cmake
index 53ba3d3eff..31fb1fb226 100644
--- a/cmake/libprotobuf.cmake
+++ b/cmake/libprotobuf.cmake
@@ -54,6 +54,7 @@ set(libprotobuf_files
 
 add_library(libprotobuf ${libprotobuf_lite_files} ${libprotobuf_files})
 target_link_libraries(libprotobuf ${CMAKE_THREAD_LIBS_INIT} ${ZLIB_LIBRARIES})
+target_include_directories(libprotobuf PUBLIC ${protobuf_source_dir}/src)
 set_target_properties(libprotobuf PROPERTIES
     COMPILE_DEFINITIONS LIBPROTOBUF_EXPORTS
     OUTPUT_NAME ${LIB_PREFIX}protobuf)
diff --git a/src/google/protobuf/compiler/java/java_map_field.cc b/src/google/protobuf/compiler/java/java_map_field.cc
index f25970e565..44b86cd74d 100644
--- a/src/google/protobuf/compiler/java/java_map_field.cc
+++ b/src/google/protobuf/compiler/java/java_map_field.cc
@@ -156,9 +156,7 @@ ImmutableMapFieldGenerator(const FieldDescriptor* descriptor,
                                        int messageBitIndex,
                                        int builderBitIndex,
                                        Context* context)
-  : descriptor_(descriptor), messageBitIndex_(messageBitIndex),
-    builderBitIndex_(builderBitIndex), context_(context),
-    name_resolver_(context->GetNameResolver())  {
+  : descriptor_(descriptor), name_resolver_(context->GetNameResolver())  {
   SetMessageVariables(descriptor, messageBitIndex, builderBitIndex,
                       context->GetFieldGeneratorInfo(descriptor),
                       name_resolver_, &variables_);
diff --git a/src/google/protobuf/compiler/java/java_map_field.h b/src/google/protobuf/compiler/java/java_map_field.h
index 80a94f4568..f2768f3ae9 100644
--- a/src/google/protobuf/compiler/java/java_map_field.h
+++ b/src/google/protobuf/compiler/java/java_map_field.h
@@ -68,9 +68,6 @@ class ImmutableMapFieldGenerator : public ImmutableFieldGenerator {
  private:
   const FieldDescriptor* descriptor_;
   map<string, string> variables_;
-  const int messageBitIndex_;
-  const int builderBitIndex_;
-  Context* context_;
   ClassNameResolver* name_resolver_;
 };
 
diff --git a/src/google/protobuf/compiler/java/java_map_field_lite.cc b/src/google/protobuf/compiler/java/java_map_field_lite.cc
index ccc1b32e72..cd1698f0b3 100644
--- a/src/google/protobuf/compiler/java/java_map_field_lite.cc
+++ b/src/google/protobuf/compiler/java/java_map_field_lite.cc
@@ -139,9 +139,7 @@ ImmutableMapFieldLiteGenerator(const FieldDescriptor* descriptor,
                                        int messageBitIndex,
                                        int builderBitIndex,
                                        Context* context)
-  : descriptor_(descriptor), messageBitIndex_(messageBitIndex),
-    builderBitIndex_(builderBitIndex), context_(context),
-    name_resolver_(context->GetNameResolver())  {
+  : descriptor_(descriptor), name_resolver_(context->GetNameResolver())  {
   SetMessageVariables(descriptor, messageBitIndex, builderBitIndex,
                       context->GetFieldGeneratorInfo(descriptor),
                       name_resolver_, &variables_);
diff --git a/src/google/protobuf/compiler/java/java_map_field_lite.h b/src/google/protobuf/compiler/java/java_map_field_lite.h
index 8247260222..a09cd53635 100644
--- a/src/google/protobuf/compiler/java/java_map_field_lite.h
+++ b/src/google/protobuf/compiler/java/java_map_field_lite.h
@@ -67,9 +67,6 @@ class ImmutableMapFieldLiteGenerator : public ImmutableFieldLiteGenerator {
  private:
   const FieldDescriptor* descriptor_;
   map<string, string> variables_;
-  const int messageBitIndex_;
-  const int builderBitIndex_;
-  Context* context_;
   ClassNameResolver* name_resolver_;
 };
 
diff --git a/src/google/protobuf/map.h b/src/google/protobuf/map.h
index 163ce9dca6..d928b7a759 100644
--- a/src/google/protobuf/map.h
+++ b/src/google/protobuf/map.h
@@ -172,7 +172,7 @@ class Map {
     !defined(GOOGLE_PROTOBUF_OS_NACL) && !defined(GOOGLE_PROTOBUF_OS_ANDROID)
     template<class NodeType, class... Args>
     void construct(NodeType* p, Args&&... args) {
-      new (p) NodeType(std::forward<Args>(args)...);
+      new ((void*)p) NodeType(std::forward<Args>(args)...);
     }
 
     template<class NodeType>
diff --git a/src/google/protobuf/stubs/mutex.h b/src/google/protobuf/stubs/mutex.h
index 2cce0561c2..7ef1cb6916 100644
--- a/src/google/protobuf/stubs/mutex.h
+++ b/src/google/protobuf/stubs/mutex.h
@@ -30,6 +30,10 @@
 #ifndef GOOGLE_PROTOBUF_STUBS_MUTEX_H_
 #define GOOGLE_PROTOBUF_STUBS_MUTEX_H_
 
+#ifdef GOOGLE_PROTOBUF_NO_THREADLOCAL
+#include <pthread.h>
+#endif
+
 #include <google/protobuf/stubs/macros.h>
 
 // ===================================================================