diff --git a/C/zstdmt/README.md b/C/zstdmt/README.md
index 26308482..8c16f0d4 100644
--- a/C/zstdmt/README.md
+++ b/C/zstdmt/README.md
@@ -1,10 +1,8 @@
 
 # Multithreading Library for [LZ4], [LZ5] and [ZStandard]
 
-- this library is a temporary solution to the threading problem with zstd, lz4 and lz5
-- future versions of that compression libs will support threading in some way, I think ;)
-- it's based on my zstdmt version @ github...
+- this library is used as a multthreading wrapper for zstd, lz4 and lz5
+- zstandard has multithreading now on board, maybe I switch to it
+- homepage of it: https://github.com/mcmilk/zstdmt
 
-zstdmt_compress.c
-
-/TR 2016-12-26
+/TR 2017-05-17
diff --git a/C/zstdmt/lz4mt_compress.c b/C/zstdmt/lz4mt_compress.c
index cbd98b1e..658a6901 100644
--- a/C/zstdmt/lz4mt_compress.c
+++ b/C/zstdmt/lz4mt_compress.c
@@ -1,6 +1,6 @@
 
 /**
- * Copyright (c) 2016 Tino Reichardt
+ * Copyright (c) 2016 - 2017 Tino Reichardt
  * All rights reserved.
  *
  * This source code is licensed under the BSD-style license found in the
@@ -333,7 +333,7 @@ size_t LZ4MT_compressCCtx(LZ4MT_CCtx * ctx, LZ4MT_RdWr_t * rdwr)
 	/* wait for all workers */
 	for (t = 0; t < ctx->threads; t++) {
 		cwork_t *w = &ctx->cwork[t];
-		void *p;
+		void *p = 0;
 		pthread_join(w->pthread, &p);
 		if (p)
 			retval_of_thread = p;
diff --git a/C/zstdmt/lz4mt_decompress.c b/C/zstdmt/lz4mt_decompress.c
index e509f49f..8ca27d19 100644
--- a/C/zstdmt/lz4mt_decompress.c
+++ b/C/zstdmt/lz4mt_decompress.c
@@ -1,6 +1,6 @@
 
 /**
- * Copyright (c) 2016 Tino Reichardt
+ * Copyright (c) 2016 - 2017 Tino Reichardt
  * All rights reserved.
  *
  * This source code is licensed under the BSD-style license found in the
@@ -542,7 +542,7 @@ size_t LZ4MT_decompressDCtx(LZ4MT_DCtx * ctx, LZ4MT_RdWr_t * rdwr)
 	/* wait for all workers */
 	for (t = 0; t < ctx->threads; t++) {
 		cwork_t *wt = &ctx->cwork[t];
-		void *p;
+		void *p = 0;
 		pthread_join(wt->pthread, &p);
 		if (p)
 			retval_of_thread = p;
diff --git a/C/zstdmt/lz5mt_compress.c b/C/zstdmt/lz5mt_compress.c
index 9f96e1a9..1ad5a582 100644
--- a/C/zstdmt/lz5mt_compress.c
+++ b/C/zstdmt/lz5mt_compress.c
@@ -1,6 +1,6 @@
 
 /**
- * Copyright (c) 2016 Tino Reichardt
+ * Copyright (c) 2016 - 2017 Tino Reichardt
  * All rights reserved.
  *
  * This source code is licensed under the BSD-style license found in the
@@ -333,7 +333,7 @@ size_t LZ5MT_compressCCtx(LZ5MT_CCtx * ctx, LZ5MT_RdWr_t * rdwr)
 	/* wait for all workers */
 	for (t = 0; t < ctx->threads; t++) {
 		cwork_t *w = &ctx->cwork[t];
-		void *p;
+		void *p = 0;
 		pthread_join(w->pthread, &p);
 		if (p)
 			retval_of_thread = p;
diff --git a/C/zstdmt/lz5mt_decompress.c b/C/zstdmt/lz5mt_decompress.c
index fc1f3d36..df306ef4 100644
--- a/C/zstdmt/lz5mt_decompress.c
+++ b/C/zstdmt/lz5mt_decompress.c
@@ -1,6 +1,6 @@
 
 /**
- * Copyright (c) 2016 Tino Reichardt
+ * Copyright (c) 2016 - 2017 Tino Reichardt
  * All rights reserved.
  *
  * This source code is licensed under the BSD-style license found in the
@@ -542,7 +542,7 @@ size_t LZ5MT_decompressDCtx(LZ5MT_DCtx * ctx, LZ5MT_RdWr_t * rdwr)
 	/* wait for all workers */
 	for (t = 0; t < ctx->threads; t++) {
 		cwork_t *wt = &ctx->cwork[t];
-		void *p;
+		void *p = 0;
 		pthread_join(wt->pthread, &p);
 		if (p)
 			retval_of_thread = p;
diff --git a/C/zstdmt/zstdmt_compress.c b/C/zstdmt/zstdmt_compress.c
index eaaf89af..6c546b37 100644
--- a/C/zstdmt/zstdmt_compress.c
+++ b/C/zstdmt/zstdmt_compress.c
@@ -1,6 +1,6 @@
 
 /**
- * Copyright (c) 2016 Tino Reichardt
+ * Copyright (c) 2016 - 2017 Tino Reichardt
  * All rights reserved.
  *
  * This source code is licensed under the BSD-style license found in the
@@ -355,7 +355,7 @@ size_t ZSTDMT_compressCCtx(ZSTDMT_CCtx * ctx, ZSTDMT_RdWr_t * rdwr)
 	/* wait for all workers */
 	for (t = 0; t < ctx->threads; t++) {
 		cwork_t *w = &ctx->cwork[t];
-		void *p;
+		void *p = 0;
 		pthread_join(w->pthread, &p);
 		if (p)
 			retval_of_thread = p;
diff --git a/C/zstdmt/zstdmt_decompress.c b/C/zstdmt/zstdmt_decompress.c
index 5882b01c..9ece55b9 100644
--- a/C/zstdmt/zstdmt_decompress.c
+++ b/C/zstdmt/zstdmt_decompress.c
@@ -1,6 +1,6 @@
 
 /**
- * Copyright (c) 2016 Tino Reichardt
+ * Copyright (c) 2016 - 2017 Tino Reichardt
  * All rights reserved.
  *
  * This source code is licensed under the BSD-style license found in the
@@ -817,7 +817,7 @@ size_t ZSTDMT_decompressDCtx(ZSTDMT_DCtx * ctx, ZSTDMT_RdWr_t * rdwr)
 	/* wait for all workers */
 	for (t = 0; t < ctx->threads; t++) {
 		cwork_t *wt = &ctx->cwork[t];
-		void *p;
+		void *p = 0;
 		pthread_join(wt->pthread, &p);
 		if (p)
 			retval_of_thread = p;