From e31f2f6ff625ed10c10905a7d2004ff3c230a0f2 Mon Sep 17 00:00:00 2001
From: Tamas Domok <tamas.domok@balabit.com>
Date: Wed, 25 Oct 2017 15:31:38 +0200
Subject: [PATCH] add zstd library

---
 src/zstd-test.c | 40 ++++++++++++++++++++++++++++++++++++++++
 src/zstd.mk     | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 75 insertions(+)
 create mode 100644 src/zstd-test.c
 create mode 100644 src/zstd.mk

diff --git a/src/zstd-test.c b/src/zstd-test.c
new file mode 100644
index 00000000..c40866a8
--- /dev/null
+++ b/src/zstd-test.c
@@ -0,0 +1,40 @@
+/*
+ * This file is part of MXE. See LICENSE.md for licensing information.
+ */
+
+#include <zstd.h>
+
+#include <string.h>
+#include <stdio.h>
+
+int
+main(int argc, char *argv[])
+{
+  const char *data;
+  int data_len;
+  char compressed[100];
+  int compressed_size;
+  char decompressed[100];
+
+  (void)argc;
+  (void)argv;
+
+  data = "Some data to compress";
+  data_len = strlen(data);
+
+  /* compress */
+  compressed_size  = ZSTD_compress(compressed, sizeof(compressed), data, data_len, 1);
+  if (compressed_size <= 0) {
+    printf("Error compressing the data\n");
+    return 1;
+  }
+
+  ZSTD_decompress(decompressed, data_len, compressed, compressed_size);
+  if (strcmp(data, decompressed) != 0) {
+    printf("Error: the compression was not lossless. Original='%s' Result='%s'\n", data, decompressed);
+    return 3;
+  }
+
+  printf("Successfully compressed and decompressed!\n");
+  return 0;
+}
diff --git a/src/zstd.mk b/src/zstd.mk
new file mode 100644
index 00000000..6e43f8bc
--- /dev/null
+++ b/src/zstd.mk
@@ -0,0 +1,35 @@
+# This file is part of MXE. See LICENSE.md for licensing information.
+
+PKG             := zstd
+$(PKG)_WEBSITE  := https://github.com/facebook/zstd
+$(PKG)_DESCR    := Zstandard is a fast lossless compression algorithm
+$(PKG)_IGNORE   :=
+$(PKG)_VERSION  := 1.3.2
+$(PKG)_CHECKSUM := ac5054a3c64e6510bc1ae890d05e3d271cc33ceebc9d06ac9f08105766d2798a
+$(PKG)_GH_CONF  := facebook/zstd,v
+$(PKG)_DEPS     := gcc
+
+define $(PKG)_BUILD
+    # build and install the library
+    cd '$(BUILD_DIR)' && $(TARGET)-cmake '$(SOURCE_DIR)/build/cmake' \
+        -DZSTD_BUILD_STATIC=$(CMAKE_STATIC_BOOL) \
+        -DZSTD_BUILD_SHARED=$(CMAKE_SHARED_BOOL) \
+        -DZSTD_BUILD_PROGRAMS=OFF
+    $(MAKE) -C '$(BUILD_DIR)' -j '$(JOBS)'
+    $(MAKE) -C '$(BUILD_DIR)' -j 1 install
+
+    # create pkg-config files
+    $(INSTALL) -d '$(PREFIX)/$(TARGET)/lib/pkgconfig'
+    (echo 'Name: $(PKG)'; \
+     echo 'Version: $($(PKG)_VERSION)'; \
+     echo 'Description: $($(PKG)_DESCR)'; \
+     echo 'Libs: -L$(PREFIX)/$(TARGET)/lib -l$(PKG)'; \
+     echo 'Cflags: -I$(PREFIX)/$(TARGET)/include';) \
+     > '$(PREFIX)/$(TARGET)/lib/pkgconfig/$(PKG).pc'
+
+    # compile test
+    '$(TARGET)-gcc' \
+        -W -Wall -Werror -ansi -pedantic \
+        '$(TEST_FILE)' -o '$(PREFIX)/$(TARGET)/bin/test-$(PKG).exe' \
+        `'$(TARGET)-pkg-config' $(PKG) --cflags --libs`
+endef