minor static assert for 32/64 bits system. Suggested by @ebiggers
diff --git a/NEWS b/NEWS
index 04e6493..2c31846 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,6 @@
+v0.7.5
+Fixed : premature end of frame when zero-sized raw block, reported by Eric Biggers
+
v0.7.4
Added : homebrew for Mac
Added : more examples
diff --git a/lib/common/mem.h b/lib/common/mem.h
index 9156bfd..f76c52d 100644
--- a/lib/common/mem.h
+++ b/lib/common/mem.h
@@ -44,16 +44,14 @@
******************************************/
#include <stddef.h> /* size_t, ptrdiff_t */
#include <string.h> /* memcpy */
-#if defined(_MSC_VER) /* Visual Studio */
-# include <stdlib.h> /* _byteswap_ulong */
-#endif
/*-****************************************
* Compiler specifics
******************************************/
-#if defined(_MSC_VER)
-# include <intrin.h> /* _byteswap_ */
+#if defined(_MSC_VER) /* Visual Studio */
+# include <stdlib.h> /* _byteswap_ulong */
+# include <intrin.h> /* _byteswap_* */
#endif
#if defined(__GNUC__)
# define MEM_STATIC static __attribute__((unused))
@@ -65,6 +63,10 @@
# define MEM_STATIC static /* this version may generate warnings for unused static functions; disable the relevant warning */
#endif
+/* code only tested on 32 and 64 bits systems */
+#define MEM_STATIC_ASSERT(c) { enum { XXH_static_assert = 1/(int)(!!(c)) }; }
+MEM_STATIC void MEM_check(void) { MEM_STATIC_ASSERT((sizeof(size_t)==4) || (sizeof(size_t)==8)); }
+
/*-**************************************************************
* Basic Types
