Rename SNAPPY to TF_USE_SNAPPY

This way there's less risk of it conflicting with downstream BUILD rules.

PiperOrigin-RevId: 172815580

tensorflow/contrib/cmake/external/snappy.cmake

@@ -47,4 +47,4 @@ ExternalProject_Add(snappy
 )
 
 # actually enables snappy in the source code
-add_definitions(-DSNAPPY)
\ No newline at end of file
+add_definitions(-DTF_USE_SNAPPY)

tensorflow/core/BUILD

@@ -1410,7 +1410,7 @@ cc_library(
     hdrs = LIB_INTERNAL_PUBLIC_HEADERS,
     copts = tf_copts(),
     defines = tf_additional_lib_defines() + [
-                  "SNAPPY",
+                  "TF_USE_SNAPPY",
               ] + tf_additional_verbs_lib_defines() +
               tf_additional_mpi_lib_defines() +
               tf_additional_gdr_lib_defines(),

tensorflow/core/platform/posix/port.cc

@@ -29,7 +29,7 @@ limitations under the License.
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#ifdef SNAPPY
+#ifdef TF_USE_SNAPPY
 #include "snappy.h"
 #endif
 #if (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD__)
@@ -126,7 +126,7 @@ void AdjustFilenameForLogging(string* filename) {
 }
 
 bool Snappy_Compress(const char* input, size_t length, string* output) {
-#ifdef SNAPPY
+#ifdef TF_USE_SNAPPY
   output->resize(snappy::MaxCompressedLength(length));
   size_t outlen;
   snappy::RawCompress(input, length, &(*output)[0], &outlen);
@@ -139,7 +139,7 @@ bool Snappy_Compress(const char* input, size_t length, string* output) {
 
 bool Snappy_GetUncompressedLength(const char* input, size_t length,
                                   size_t* result) {
-#ifdef SNAPPY
+#ifdef TF_USE_SNAPPY
   return snappy::GetUncompressedLength(input, length, result);
 #else
   return false;
@@ -147,7 +147,7 @@ bool Snappy_GetUncompressedLength(const char* input, size_t length,
 }
 
 bool Snappy_Uncompress(const char* input, size_t length, char* output) {
-#ifdef SNAPPY
+#ifdef TF_USE_SNAPPY
   return snappy::RawUncompress(input, length, output);
 #else
   return false;

tensorflow/core/platform/windows/port.cc

@@ -20,7 +20,7 @@ limitations under the License.
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#ifdef SNAPPY
+#ifdef TF_USE_SNAPPY
 #include "snappy.h"
 #endif
 
@@ -118,7 +118,7 @@ void AdjustFilenameForLogging(string* filename) {
 }
 
 bool Snappy_Compress(const char* input, size_t length, string* output) {
-#ifdef SNAPPY
+#ifdef TF_USE_SNAPPY
   output->resize(snappy::MaxCompressedLength(length));
   size_t outlen;
   snappy::RawCompress(input, length, &(*output)[0], &outlen);
@@ -131,7 +131,7 @@ bool Snappy_Compress(const char* input, size_t length, string* output) {
 
 bool Snappy_GetUncompressedLength(const char* input, size_t length,
                                   size_t* result) {
-#ifdef SNAPPY
+#ifdef TF_USE_SNAPPY
   return snappy::GetUncompressedLength(input, length, result);
 #else
   return false;
@@ -139,7 +139,7 @@ bool Snappy_GetUncompressedLength(const char* input, size_t length,
 }
 
 bool Snappy_Uncompress(const char* input, size_t length, char* output) {
-#ifdef SNAPPY
+#ifdef TF_USE_SNAPPY
   return snappy::RawUncompress(input, length, output);
 #else
   return false;