Merge pull request #653 from Cyan4973/noxxh3

removed XXH3 declarations when XXH_NO_XXH3 is defined

Makefile

@@ -332,14 +332,15 @@ c90test: xxhash.c
 	$(RM) xxhash.o
 endif
 
+.PHONY: noxxh3test
 noxxh3test: CPPFLAGS += -DXXH_NO_XXH3
 noxxh3test: CFLAGS += -Werror -pedantic -Wno-long-long  # XXH64 requires long long support
+noxxh3test: OFILE = xxh_noxxh3.o
 noxxh3test: xxhash.c
 	@echo ---- test compilation without XXH3 ----
-	$(RM) xxhash.o
-	$(CC) $(FLAGS) $^ -c
-	$(NM) xxhash.o | $(GREP) XXH3_ ; test $$? -eq 1
-	$(RM) xxhash.o
+	$(CC) $(FLAGS) -c $^ -o $(OFILE)
+	$(NM) $(OFILE) | $(GREP) XXH3_ ; test $$? -eq 1
+	$(RM) $(OFILE)
 
 .PHONY: usan
 usan: CC=clang
@@ -387,7 +388,7 @@ preview-man: man
 
 .PHONY: test
 test: DEBUGFLAGS += -DXXH_DEBUGLEVEL=1
-test: all namespaceTest check test-xxhsum-c c90test test-tools
+test: all namespaceTest check test-xxhsum-c c90test test-tools noxxh3test
 
 .PHONY: test-inline
 test-inline:

xxhash.h

@@ -728,6 +728,8 @@ typedef struct { unsigned char digest[sizeof(XXH64_hash_t)]; } XXH64_canonical_t
 XXH_PUBLIC_API void XXH64_canonicalFromHash(XXH64_canonical_t* dst, XXH64_hash_t hash);
 XXH_PUBLIC_API XXH64_hash_t XXH64_hashFromCanonical(const XXH64_canonical_t* src);
 
+#ifndef XXH_NO_XXH3
+
 /*!
  * @}
  * ************************************************************************
@@ -935,6 +937,7 @@ XXH_PUBLIC_API void XXH128_canonicalFromHash(XXH128_canonical_t* dst, XXH128_has
 XXH_PUBLIC_API XXH128_hash_t XXH128_hashFromCanonical(const XXH128_canonical_t* src);
 
 
+#endif  /* !XXH_NO_XXH3 */
 #endif  /* XXH_NO_LONG_LONG */
 
 /*!
@@ -1005,6 +1008,8 @@ struct XXH64_state_s {
    XXH64_hash_t reserved64;   /*!< Reserved field. Do not read or write to it. */
 };   /* typedef'd to XXH64_state_t */
 
+#ifndef XXH_NO_XXH3
+
 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) /* >= C11 */
 #  include <stdalign.h>
 #  define XXH_ALIGN(n)      alignas(n)
@@ -1216,6 +1221,7 @@ XXH3_128bits_reset_withSecretandSeed(XXH3_state_t* statePtr,
                                      XXH64_hash_t seed64);
 
 
+#endif  /* !XXH_NO_XXH3 */
 #endif  /* XXH_NO_LONG_LONG */
 #if defined(XXH_INLINE_ALL) || defined(XXH_PRIVATE_API)
 #  define XXH_IMPLEMENTATION