Merge pull request #80 from JakubOnderka/zstd-1.5.7

Update to zstd 1.5.7

Author: kjdev

config.m4

@@ -73,6 +73,7 @@ if test "$PHP_ZSTD" != "no"; then
       zstd/lib/compress/zstd_lazy.c
       zstd/lib/compress/zstd_ldm.c
       zstd/lib/compress/zstd_opt.c
+      zstd/lib/compress/zstd_preSplit.c
       zstd/lib/compress/zstdmt_compress.c
     "
     ZSTD_DECOMPRESS_SOURCES="

config.w32

@@ -20,7 +20,7 @@ if (PHP_ZSTD != "no") {
     EXTENSION("zstd", "zstd.c", null, "/DZEND_ENABLE_STATIC_TSRMLS_CACHE=1");
 
     ADD_SOURCES("zstd/lib/common", "debug.c entropy_common.c error_private.c fse_decompress.c pool.c threading.c xxhash.c zstd_common.c", "zstd");
-    ADD_SOURCES("zstd/lib/compress", "fse_compress.c hist.c huf_compress.c zstd_compress.c zstd_compress_literals.c zstd_compress_sequences.c zstd_compress_superblock.c zstd_double_fast.c zstd_fast.c zstd_lazy.c zstd_ldm.c zstd_opt.c zstdmt_compress.c", "zstd");
+    ADD_SOURCES("zstd/lib/compress", "fse_compress.c hist.c huf_compress.c zstd_compress.c zstd_compress_literals.c zstd_compress_sequences.c zstd_compress_superblock.c zstd_double_fast.c zstd_fast.c zstd_lazy.c zstd_ldm.c zstd_opt.c zstd_preSplit.c zstdmt_compress.c", "zstd");
     ADD_SOURCES("zstd/lib/decompress", "huf_decompress.c zstd_ddict.c zstd_decompress.c zstd_decompress_block.c", "zstd");
 
     ADD_FLAG("CFLAGS_ZSTD", " /I" + configure_module_dirname + " /I" + configure_module_dirname + "/zstd/lib/common" + " /I" + configure_module_dirname + "/zstd/lib");