[amalgamation] lz4frame.c

lib/README.md

@@ -42,6 +42,19 @@ Should they be nonetheless needed, it's possible to force their publication
 by using build macro `LZ4_PUBLISH_STATIC_FUNCTIONS`.
 
 
+#### Amalgamation
+
+lz4 code is able to be amalgamated into a single file.
+We can combine all source code in `lz4_all.c` by using following command, 
+```
+cat lz4.c > lz4_all.c
+cat lz4hc.c >> lz4_all.c
+cat lz4frame.c >> lz4_all.c
+```
+and compile `lz4_all.c`.
+It's necessary to include all `*.h` files present in `/lib` together with `lz4_all.c`.
+
+
 #### Windows : using MinGW+MSYS to create DLL
 
 DLL can be created using MinGW+MSYS with the `make liblz4` command.

lib/lz4frame.c

@@ -64,10 +64,15 @@ You can contact the author at :
 **************************************/
 #include <stdlib.h>   /* malloc, calloc, free */
 #define ALLOC(s)       malloc(s)
+#ifndef LZ4_SRC_INCLUDED
 #define ALLOC_AND_ZERO(s)  calloc(1,(s))
+#endif
 #define FREEMEM(p)     free(p)
 #include <string.h>   /* memset, memcpy, memmove */
+#ifndef LZ4_SRC_INCLUDED
 #define MEM_INIT       memset
+#endif
+
 
 
 /*-************************************
@@ -180,9 +185,11 @@ static void LZ4F_writeLE64 (void* dst, U64 value64)
 /*-************************************
 *  Constants
 **************************************/
+#ifndef LZ4_SRC_INCLUDED
 #define KB *(1<<10)
 #define MB *(1<<20)
 #define GB *(1<<30)
+#endif
 
 #define _1BIT  0x01
 #define _2BITS 0x03

tests/Makefile

@@ -160,6 +160,7 @@ test32: test
 test-amalgamation: $(LZ4DIR)/lz4.c $(LZ4DIR)/lz4hc.c
 	cat $(LZ4DIR)/lz4.c > lz4_all.c
 	cat $(LZ4DIR)/lz4hc.c >> lz4_all.c
+	cat $(LZ4DIR)/lz4frame.c >> lz4_all.c
 	$(CC) -I$(LZ4DIR) -c lz4_all.c
 	$(RM) lz4_all.c