update library builder

lib/Makefile

@@ -27,8 +27,8 @@
 # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 # 
 # You can contact the author at :
+#  - ZSTD homepage : http://www.zstd.net
 #  - ZSTD source repository : https://github.com/Cyan4973/zstd
-#  - Public forum : https://groups.google.com/forum/#!forum/lz4c
 # ################################################################
 
 # Version numbers
@@ -63,14 +63,17 @@ else
 	SHARED_EXT_VER = $(SHARED_EXT).$(LIBVER)
 endif
 
-default: libzstd
 
-all: libzstd
+.PHONY: default all clean install uninstall
 
-libzstd: zstd_compress.c zstd_decompress.c huff0.c fse.c
+default: clean libzstd
+
+all: clean libzstd
+
+libzstd: zstd_compress.c zstd_decompress.c huff0.c fse.c legacy/zstd_v01.c legacy/zstd_v02.c
 	@echo compiling static library
 	@$(CC) $(FLAGS) -c $^
-	@$(AR) rcs libzstd.a zstd_compress.o zstd_decompress.o huff0.o fse.o
+	@$(AR) rcs libzstd.a *.o
 	@echo compiling dynamic library $(LIBVER)
 	@$(CC) $(FLAGS) -shared $^ -fPIC $(SONAME_FLAGS) -o $@.$(SHARED_EXT_VER)
 	@echo creating versioned links

lib/zstd_decompress.c

@@ -35,9 +35,8 @@
 *****************************************************************/
 /*!
  * HEAPMODE :
- * Select how default compression functions will allocate memory for their hash table,
+ * Select how default functions will allocate memory for their context,
  * in memory stack (0, fastest), or in memory heap (1, requires malloc())
- * Note that compression context is fairly large, as a consequence heap memory is recommended.
  */
 #ifndef ZSTD_HEAPMODE
 #  define ZSTD_HEAPMODE 1
@@ -393,6 +392,10 @@ typedef struct {
 } seqState_t;
 
 
+/** ZSTD_decodeSequence
+*   Decode the next sequence, defined as nbLiterals, PtrToLiterals, nbMatches, Offset
+*   @seq : store sequence into this seq_t
+*/
 static void ZSTD_decodeSequence(seq_t* seq, seqState_t* seqState)
 {
     size_t litLength;