5 files changed, 6 insertions, 6 deletions
diff --git a/src/core/ext/transport/chttp2/transport/hpack_encoder.cc b/src/core/ext/transport/chttp2/transport/hpack_encoder.cc
index a404b664e3..5f1a2708a5 100644
--- a/src/core/ext/transport/chttp2/transport/hpack_encoder.cc
+++ b/src/core/ext/transport/chttp2/transport/hpack_encoder.cc
@@ -57,7 +57,7 @@ static const grpc_slice terminal_slice = {
     {{0, 0}}                  /* data.refcounted */
 };
 
-extern grpc_tracer_flag grpc_http_trace;
+extern "C" grpc_tracer_flag grpc_http_trace;
 
 typedef struct {
   int is_first_frame;
diff --git a/src/core/ext/transport/chttp2/transport/hpack_table.cc b/src/core/ext/transport/chttp2/transport/hpack_table.cc
index bbd135a318..82c284b36e 100644
--- a/src/core/ext/transport/chttp2/transport/hpack_table.cc
+++ b/src/core/ext/transport/chttp2/transport/hpack_table.cc
@@ -28,7 +28,7 @@
 #include "src/core/lib/debug/trace.h"
 #include "src/core/lib/support/murmur_hash.h"
 
-extern grpc_tracer_flag grpc_http_trace;
+extern "C" grpc_tracer_flag grpc_http_trace;
 
 static struct {
   const char *key;
diff --git a/src/core/lib/compression/stream_compression.cc b/src/core/lib/compression/stream_compression.cc
index 411489f029..7faeb0d34f 100644
--- a/src/core/lib/compression/stream_compression.cc
+++ b/src/core/lib/compression/stream_compression.cc
@@ -21,7 +21,7 @@
 #include "src/core/lib/compression/stream_compression.h"
 #include "src/core/lib/compression/stream_compression_gzip.h"
 
-extern const grpc_stream_compression_vtable
+extern "C" const grpc_stream_compression_vtable
     grpc_stream_compression_identity_vtable;
 
 bool grpc_stream_compress(grpc_stream_compression_context *ctx,
diff --git a/src/core/lib/iomgr/tcp_windows.cc b/src/core/lib/iomgr/tcp_windows.cc
index daf15b4944..dc84e564a9 100644
--- a/src/core/lib/iomgr/tcp_windows.cc
+++ b/src/core/lib/iomgr/tcp_windows.cc
@@ -419,7 +419,7 @@ static grpc_endpoint_vtable vtable = {
 
 grpc_endpoint *grpc_tcp_create(grpc_exec_ctx *exec_ctx, grpc_winsocket *socket,
                                grpc_channel_args *channel_args,
-                               char *peer_string) {
+                               const char *peer_string) {
   grpc_resource_quota *resource_quota = grpc_resource_quota_create(NULL);
   if (channel_args != NULL) {
     for (size_t i = 0; i < channel_args->num_args; i++) {
diff --git a/src/core/lib/support/string_util_windows.cc b/src/core/lib/support/string_util_windows.cc
index 86e19527a7..b365512ee3 100644
--- a/src/core/lib/support/string_util_windows.cc
+++ b/src/core/lib/support/string_util_windows.cc
@@ -60,9 +60,9 @@ gpr_tchar_to_char(LPCTSTR input) {
   return ret;
 }
 #else
-char *gpr_tchar_to_char(LPTSTR input) { return gpr_strdup(input); }
+LPSTR gpr_tchar_to_char(LPCTSTR input) { return (LPSTR)gpr_strdup(input); }
 
-char *gpr_char_to_tchar(LPTSTR input) { return gpr_strdup(input); }
+LPTSTR gpr_char_to_tchar(LPCTSTR input) { return (LPTSTR)gpr_strdup(input); }
 #endif
 
 char *gpr_format_message(int messageid) {