From 5efbab5f3b59ebf94ac9c0b8adc8851b5f2b1cd6 Mon Sep 17 00:00:00 2001
From: Robert Manner <robert.manner@balabit.com>
Date: Sat, 18 Mar 2017 10:23:58 +0100
Subject: add lz4 library

---
 src/lz4-test.c | 36 ++++++++++++++++++++++++++++++++++++
 src/lz4.mk     | 27 +++++++++++++++++++++++++++
 2 files changed, 63 insertions(+)
 create mode 100644 src/lz4-test.c
 create mode 100644 src/lz4.mk

diff --git a/src/lz4-test.c b/src/lz4-test.c
new file mode 100644
index 0000000..c083f67
--- /dev/null
+++ b/src/lz4-test.c
@@ -0,0 +1,36 @@
+#include <lz4.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 = LZ4_compress_default(data, compressed, data_len, 100);
+  if (compressed_size <= 0) {
+    printf("Error compressing the data\n");
+    return 1;
+  }
+
+  LZ4_decompress_fast(compressed, decompressed, data_len);
+  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/lz4.mk b/src/lz4.mk
new file mode 100644
index 0000000..a76e301
--- /dev/null
+++ b/src/lz4.mk
@@ -0,0 +1,27 @@
+# This file is part of MXE. See LICENSE.md for licensing information.
+
+PKG             := lz4
+$(PKG)_WEBSITE  := https://github.com/$(PKG)/$(PKG)
+$(PKG)_DESCR    := lossless compression algorithm optimized for speed
+$(PKG)_IGNORE   :=
+$(PKG)_VERSION  := 1.7.5
+$(PKG)_CHECKSUM := 0190cacd63022ccb86f44fa5041dc6c3804407ad61550ca21c382827319e7e7e
+$(PKG)_GH_CONF  := lz4/lz4,v
+$(PKG)_DEPS     := gcc
+
+define $(PKG)_BUILD
+    # build and install the library
+    cd '$(BUILD_DIR)' && $(TARGET)-cmake \
+        -DCMAKE_INSTALL_BINDIR=$(BUILD_DIR)/null \
+        -DCMAKE_INSTALL_MANDIR=$(BUILD_DIR)/null \
+        '$(SOURCE_DIR)/contrib/cmake_unofficial'
+    $(MAKE) -C '$(BUILD_DIR)' -j '$(JOBS)'
+    $(MAKE) -C '$(BUILD_DIR)' -j 1 install
+    $(if $(BUILD_SHARED), $(INSTALL) '$(BUILD_DIR)/liblz4.dll' '$(PREFIX)/$(TARGET)/bin/')
+
+    # compile test
+    '$(TARGET)-gcc' \
+        -W -Wall -Werror -ansi -pedantic \
+        '$(TEST_FILE)' -o '$(PREFIX)/$(TARGET)/bin/test-$(PKG).exe' \
+        `'$(TARGET)-pkg-config' lib$(PKG) --cflags --libs`
+endef
-- 
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