moved zbuff source files into lib/deprecated
diff --git a/NEWS b/NEWS
index 127d1ac..36aa45e 100644
--- a/NEWS
+++ b/NEWS
@@ -9,6 +9,7 @@
 API : changed : streaming decompression implicit reset on starting new frame
 API : added experimental : dictID retrieval functions
 zlib_wrapper : added support for gz* functions, by Przemyslaw Skibinski
+Changed : zbuff source files moved to lib/deprecated
 Changed : reduced stack memory use
 
 v1.1.1
diff --git a/build/cmake/lib/CMakeLists.txt b/build/cmake/lib/CMakeLists.txt
index f970fe7..02cfb96 100644
--- a/build/cmake/lib/CMakeLists.txt
+++ b/build/cmake/lib/CMakeLists.txt
@@ -64,25 +64,25 @@
         ${LIBRARY_DIR}/common/fse_decompress.c
         ${LIBRARY_DIR}/compress/fse_compress.c
         ${LIBRARY_DIR}/compress/huf_compress.c
-        ${LIBRARY_DIR}/compress/zbuff_compress.c
         ${LIBRARY_DIR}/compress/zstd_compress.c
         ${LIBRARY_DIR}/decompress/huf_decompress.c
-        ${LIBRARY_DIR}/decompress/zbuff_decompress.c
         ${LIBRARY_DIR}/decompress/zstd_decompress.c
         ${LIBRARY_DIR}/dictBuilder/divsufsort.c
-        ${LIBRARY_DIR}/dictBuilder/zdict.c)
+        ${LIBRARY_DIR}/dictBuilder/zdict.c
+        ${LIBRARY_DIR}/deprecated/zbuff_compress.c
+        ${LIBRARY_DIR}/deprecated/zbuff_decompress.c)
 
 SET(Headers
+        ${LIBRARY_DIR}/zstd.h
         ${LIBRARY_DIR}/common/bitstream.h
         ${LIBRARY_DIR}/common/error_private.h
         ${LIBRARY_DIR}/common/zstd_errors.h
         ${LIBRARY_DIR}/common/fse.h
         ${LIBRARY_DIR}/common/huf.h
         ${LIBRARY_DIR}/common/mem.h
-        ${LIBRARY_DIR}/common/zbuff.h
         ${LIBRARY_DIR}/common/zstd_internal.h
-        ${LIBRARY_DIR}/zstd.h
-        ${LIBRARY_DIR}/dictBuilder/zdict.h)
+        ${LIBRARY_DIR}/dictBuilder/zdict.h
+        ${LIBRARY_DIR}/deprecated/zbuff.h)
 
 IF (ZSTD_LEGACY_SUPPORT)
     SET(LIBRARY_LEGACY_DIR ${LIBRARY_DIR}/legacy)
diff --git a/build/cmake/tests/CMakeLists.txt b/build/cmake/tests/CMakeLists.txt
index f5ece89..7f9c38e 100644
--- a/build/cmake/tests/CMakeLists.txt
+++ b/build/cmake/tests/CMakeLists.txt
@@ -50,9 +50,6 @@
 TARGET_LINK_LIBRARIES(fuzzer libzstd_static)
 
 IF (UNIX)
-    ADD_EXECUTABLE(zbufftest ${PROGRAMS_DIR}/datagen.c ${TESTS_DIR}/zbufftest.c)
-    TARGET_LINK_LIBRARIES(zbufftest libzstd_static)
-
     ADD_EXECUTABLE(paramgrill ${PROGRAMS_DIR}/datagen.c ${TESTS_DIR}/paramgrill.c)
     TARGET_LINK_LIBRARIES(paramgrill libzstd_static m) #m is math library
 
diff --git a/lib/Makefile b/lib/Makefile
index 8f316aa..bf1088d 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -23,24 +23,22 @@
 LIBDIR ?= $(PREFIX)/lib
 INCLUDEDIR=$(PREFIX)/include
 
-CPPFLAGS= -I. -I./common -DXXH_NAMESPACE=XXH_
-CFLAGS ?= -O3
-CFLAGS += -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow -Wstrict-aliasing=1 \
-          -Wswitch-enum -Wdeclaration-after-statement -Wstrict-prototypes -Wundef \
-          -Wpointer-arith
-FLAGS   = $(CPPFLAGS) $(CFLAGS) $(MOREFLAGS)
+CPPFLAGS+= -I. -I./common -DXXH_NAMESPACE=ZSTD_
+CFLAGS  ?= -O3
+CFLAGS  += -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow -Wstrict-aliasing=1 \
+           -Wswitch-enum -Wdeclaration-after-statement -Wstrict-prototypes -Wundef \
+           -Wpointer-arith
+CFLAGS  += $(MOREFLAGS)
+FLAGS    = $(CPPFLAGS) $(CFLAGS)
 
 
-ZSTD_FILES := $(wildcard common/*.c compress/*.c decompress/*.c dictBuilder/*.c)
-ZSTD_EXCLUDE := compress/zbuff_compress.c decompress/zbuff_decompress.c
-ZSTD_FILES := $(filter-out $(ZSTD_EXCLUDE), $(ZSTD_FILES))
-
+ZSTD_FILES := $(wildcard common/*.c compress/*.c decompress/*.c dictBuilder/*.c deprecated/*.c)
 
 ifeq ($(ZSTD_LEGACY_SUPPORT), 0)
 CPPFLAGS  += -DZSTD_LEGACY_SUPPORT=0
 else
-ZSTD_FILES+= legacy/*.c
 CPPFLAGS  += -I./legacy -DZSTD_LEGACY_SUPPORT=1
+ZSTD_FILES+= $(wildcard legacy/*.c)
 endif
 
 # OS X linker doesn't support -soname, and use different extension
@@ -90,8 +88,8 @@
 lib: libzstd.a libzstd
 
 clean:
-	@$(RM) -f core *.o *.a *.gcda *.$(SHARED_EXT) *.$(SHARED_EXT).* libzstd.pc dll/libzstd.dll dll/libzstd.lib
-	@$(RM) -f decompress/*.o
+	@$(RM) core *.o *.a *.gcda *.$(SHARED_EXT) *.$(SHARED_EXT).* libzstd.pc dll/libzstd.dll dll/libzstd.lib
+	@$(RM) decompress/*.o
 	@echo Cleaning library completed
 
 #------------------------------------------------------------------------
@@ -116,7 +114,7 @@
 	@install -m 644 libzstd.a $(DESTDIR)$(LIBDIR)/libzstd.a
 	@install -m 644 zstd.h $(DESTDIR)$(INCLUDEDIR)/zstd.h
 	@install -m 644 common/zstd_errors.h $(DESTDIR)$(INCLUDEDIR)/zstd_errors.h
-	@install -m 644 common/zbuff.h $(DESTDIR)$(INCLUDEDIR)/zbuff.h
+	@install -m 644 deprecated/zbuff.h $(DESTDIR)$(INCLUDEDIR)/zbuff.h   # prototypes generate deprecation warnings
 	@install -m 644 dictBuilder/zdict.h $(DESTDIR)$(INCLUDEDIR)/zdict.h
 	@echo zstd static and shared library installed
 
diff --git a/lib/README.md b/lib/README.md
index d33ad52..3357e3d 100644
--- a/lib/README.md
+++ b/lib/README.md
@@ -56,15 +56,15 @@
 ```
     gcc $(CFLAGS) -Iinclude/ test-dll.c -o test-dll dll\libzstd.dll
 ```
-The compiled executable will require ZSTD DLL which is available at `dll\libzstd.dll`. 
+The compiled executable will require ZSTD DLL which is available at `dll\libzstd.dll`.
 
 
 #### Obsolete streaming API
 
 Streaming is now provided within `zstd.h`.
-Older streaming API is still available within `common/zbuff.h`.
-It is now deprecated, and will be removed in a future version.
-Consider migrating towards newer streaming API in `zstd.h`.
+Older streaming API is still available within `deprecated/zbuff.h`.
+It will be removed in a future version.
+Consider migrating code towards newer streaming API in `zstd.h`.
 
 
 #### Miscellaneous
diff --git a/lib/common/zstd_common.c b/lib/common/zstd_common.c
index 54bc91c..f30128c 100644
--- a/lib/common/zstd_common.c
+++ b/lib/common/zstd_common.c
@@ -16,7 +16,6 @@
 #include "error_private.h"
 #define ZSTD_STATIC_LINKING_ONLY
 #include "zstd.h"           /* declaration of ZSTD_isError, ZSTD_getErrorName, ZSTD_getErrorCode, ZSTD_getErrorString, ZSTD_versionNumber */
-#include "zbuff.h"          /* declaration of ZBUFF_isError, ZBUFF_getErrorName */
 
 
 /*-****************************************
@@ -44,16 +43,11 @@
 *   provides error code string from enum */
 const char* ZSTD_getErrorString(ZSTD_ErrorCode code) { return ERR_getErrorName(code); }
 
-
-/* **************************************************************
-*  ZBUFF Error Management
-****************************************************************/
+/* ---   ZBUFF Error Management  (deprecated)   --- */
 unsigned ZBUFF_isError(size_t errorCode) { return ERR_isError(errorCode); }
-
 const char* ZBUFF_getErrorName(size_t errorCode) { return ERR_getErrorName(errorCode); }
 
 
-
 /*=**************************************************************
 *  Custom allocator
 ****************************************************************/
diff --git a/lib/common/zbuff.h b/lib/deprecated/zbuff.h
similarity index 99%
rename from lib/common/zbuff.h
rename to lib/deprecated/zbuff.h
index e8af504..8e55c39 100644
--- a/lib/common/zbuff.h
+++ b/lib/deprecated/zbuff.h
@@ -202,6 +202,7 @@
                                                const void* dict, size_t dictSize,
                                                ZSTD_parameters params, unsigned long long pledgedSrcSize);
 
+
 #endif /* ZBUFF_STATIC_LINKING_ONLY */
 
 
diff --git a/lib/compress/zbuff_compress.c b/lib/deprecated/zbuff_compress.c
similarity index 100%
rename from lib/compress/zbuff_compress.c
rename to lib/deprecated/zbuff_compress.c
diff --git a/lib/decompress/zbuff_decompress.c b/lib/deprecated/zbuff_decompress.c
similarity index 100%
rename from lib/decompress/zbuff_decompress.c
rename to lib/deprecated/zbuff_decompress.c
diff --git a/lib/zstd.h b/lib/zstd.h
index a1b0e62..a10a9ea 100644
--- a/lib/zstd.h
+++ b/lib/zstd.h
@@ -53,8 +53,6 @@
 *********************************************************************************************************/
 
 /*------   Version   ------*/
-ZSTDLIB_API unsigned ZSTD_versionNumber (void);  /**< returns version number of ZSTD */
-
 #define ZSTD_VERSION_MAJOR    1
 #define ZSTD_VERSION_MINOR    1
 #define ZSTD_VERSION_RELEASE  2
@@ -65,6 +63,7 @@
 #define ZSTD_VERSION_STRING ZSTD_EXPAND_AND_QUOTE(ZSTD_LIB_VERSION)
 
 #define ZSTD_VERSION_NUMBER  (ZSTD_VERSION_MAJOR *100*100 + ZSTD_VERSION_MINOR *100 + ZSTD_VERSION_RELEASE)
+ZSTDLIB_API unsigned ZSTD_versionNumber (void);
 
 
 /***************************************
diff --git a/tests/Makefile b/tests/Makefile
index 50bb057..fbee214 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -37,10 +37,10 @@
 
 
 ZSTDCOMMON_FILES := $(ZSTDDIR)/common/*.c
-ZSTDCOMP_FILES := $(ZSTDDIR)/compress/zstd_compress.c $(ZSTDDIR)/compress/fse_compress.c $(ZSTDDIR)/compress/huf_compress.c
-ZSTDDECOMP_FILES := $(ZSTDDIR)/decompress/zstd_decompress.c $(ZSTDDIR)/decompress/huf_decompress.c
+ZSTDCOMP_FILES := $(ZSTDDIR)/compress/*.c
+ZSTDDECOMP_FILES := $(ZSTDDIR)/decompress/*.c
 ZSTD_FILES := $(ZSTDDECOMP_FILES) $(ZSTDCOMMON_FILES) $(ZSTDCOMP_FILES)
-ZBUFF_FILES := $(ZSTDDIR)/compress/zbuff_compress.c $(ZSTDDIR)/decompress/zbuff_decompress.c
+ZBUFF_FILES := $(ZSTDDIR)/deprecated/*.c
 ZDICT_FILES := $(ZSTDDIR)/dictBuilder/*.c
 
 
@@ -53,7 +53,7 @@
 endif
 
 VOID = /dev/null
-ZBUFFTEST = -T2mn
+ZSTREAM_TESTTIME = -T2mn
 FUZZERTEST= -T5mn
 ZSTDRTTEST= --test-large-data
 
@@ -61,9 +61,9 @@
 
 default: fullbench
 
-all: fullbench fuzzer zstreamtest paramgrill datagen
+all: fullbench fuzzer zstreamtest paramgrill datagen zbufftest
 
-all32: fullbench32 fuzzer32 zstreamtest32
+all32: fullbench32 fuzzer32 zstreamtest32 zbufftest32
 
 
 
@@ -93,19 +93,21 @@
 	$(MAKE) -C $(ZSTDDIR) libzstd
 	$(CC) $(FLAGS) $^ -o $@$(EXT) -DZSTD_DLL_IMPORT=1 $(ZSTDDIR)/dll/libzstd.dll
 
-fuzzer  : CPPFLAGS += -I$(ZSTDDIR)/dictBuilder
 fuzzer  : $(ZSTD_FILES) $(ZDICT_FILES) $(PRGDIR)/datagen.c fuzzer.c
 	$(CC)      $(FLAGS) $^ -o $@$(EXT)
 
-fuzzer32 : CPPFLAGS += -I$(ZSTDDIR)/dictBuilder
 fuzzer32 : $(ZSTD_FILES) $(ZDICT_FILES) $(PRGDIR)/datagen.c fuzzer.c
 	$(CC)  -m32  $(FLAGS) $^ -o $@$(EXT)
 
-zbufftest  : $(ZSTD_FILES) $(ZBUFF_FILES) $(PRGDIR)/datagen.c zbufftest.c
-	$(CC)      $(FLAGS) $^ -o $@$(EXT)
+zbufftest : CPPFLAGS += -I$(ZSTDDIR)/deprecated
+zbufftest : CFLAGS += -Wno-deprecated-declarations
+zbufftest : $(ZSTD_FILES) $(ZBUFF_FILES) $(PRGDIR)/datagen.c zbufftest.c
+	$(CC) $(FLAGS) $^ -o $@$(EXT)   # flag required to silence deprecation warnings
 
-zbufftest32  : $(ZSTD_FILES) $(ZBUFF_FILES) $(PRGDIR)/datagen.c zbufftest.c
-	$(CC)  -m32  $(FLAGS) $^ -o $@$(EXT)
+zbufftest32 : CPPFLAGS += -I$(ZSTDDIR)/deprecated
+zbufftest32 : CFLAGS += -Wno-deprecated-declarations -m32
+zbufftest32 : $(ZSTD_FILES) $(ZBUFF_FILES) $(PRGDIR)/datagen.c zbufftest.c
+	$(CC) $(FLAGS) $^ -o $@$(EXT)
 
 zstreamtest  : $(ZSTD_FILES) $(PRGDIR)/datagen.c zstreamtest.c
 	$(CC)      $(FLAGS) $^ -o $@$(EXT)
@@ -224,15 +226,15 @@
 	$(QEMU_SYS) ./fuzzer32 $(FUZZERTEST)
 
 test-zbuff: zbufftest
-	$(QEMU_SYS) ./zbufftest $(ZBUFFTEST)
+	$(QEMU_SYS) ./zbufftest $(ZSTREAM_TESTTIME)
 
 test-zbuff32: zbufftest32
-	$(QEMU_SYS) ./zbufftest32 $(ZBUFFTEST)
+	$(QEMU_SYS) ./zbufftest32 $(ZSTREAM_TESTTIME)
 
 test-zstream: zstreamtest
-	$(QEMU_SYS) ./zstreamtest $(ZBUFFTEST)
+	$(QEMU_SYS) ./zstreamtest $(ZSTREAM_TESTTIME)
 
 test-zstream32: zstreamtest32
-	$(QEMU_SYS) ./zstreamtest32 $(ZBUFFTEST)
+	$(QEMU_SYS) ./zstreamtest32 $(ZSTREAM_TESTTIME)
 
 endif