buildroot/package/leveldb/0004-cmake-Use-find_package...

101 lines
3.4 KiB
Diff

From 450c1d88b3e1af34614294830b4dc0612d198d26 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Bylica?= <chfast@gmail.com>
Date: Wed, 8 May 2019 10:42:03 +0200
Subject: [PATCH] cmake: Use find_package() to find Snappy
Upstream: https://github.com/google/leveldb/pull/686/commits/3e73a396a082efc76e065ae974fe18c3bb27219d
[Thomas: this commit allows to fix the detection of the snappy library
in static link configurations]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[Fabrice : updated for 1.23]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
CMakeLists.txt | 12 ++++++++----
cmake/FindSnappy.cmake | 31 +++++++++++++++++++++++++++++++
2 files changed, 39 insertions(+), 4 deletions(-)
create mode 100644 cmake/FindSnappy.cmake
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 78fead6..2efccda 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,6 +6,9 @@ cmake_minimum_required(VERSION 3.9)
# Keep the version below in sync with the one in db.h
project(leveldb VERSION 1.23.0 LANGUAGES C CXX)
+# Include local CMake modules.
+list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
+
# C standard can be overridden when this is used as a sub-project.
if(NOT CMAKE_C_STANDARD)
# This project can use C11, but will gracefully decay down to C89.
@@ -31,13 +34,14 @@ option(LEVELDB_INSTALL "Install LevelDB's header and library" ON)
include(TestBigEndian)
test_big_endian(LEVELDB_IS_BIG_ENDIAN)
+find_package(Snappy)
+
include(CheckIncludeFile)
check_include_file("unistd.h" HAVE_UNISTD_H)
include(CheckLibraryExists)
check_library_exists(atomic __atomic_fetch_add_4 "" HAVE_ATOMIC)
check_library_exists(crc32c crc32c_value "" HAVE_CRC32C)
-check_library_exists(snappy snappy_compress "" HAVE_SNAPPY)
check_library_exists(tcmalloc malloc "" HAVE_TCMALLOC)
include(CheckCXXSymbolExists)
@@ -276,9 +280,9 @@ endif(HAVE_ATOMIC)
if(HAVE_CRC32C)
target_link_libraries(leveldb crc32c)
endif(HAVE_CRC32C)
-if(HAVE_SNAPPY)
- target_link_libraries(leveldb snappy)
-endif(HAVE_SNAPPY)
+if(TARGET Snappy::snappy)
+ target_link_libraries(leveldb Snappy::snappy)
+endif()
if(HAVE_TCMALLOC)
target_link_libraries(leveldb tcmalloc)
endif(HAVE_TCMALLOC)
diff --git a/cmake/FindSnappy.cmake b/cmake/FindSnappy.cmake
new file mode 100644
index 0000000..88c1de9
--- /dev/null
+++ b/cmake/FindSnappy.cmake
@@ -0,0 +1,31 @@
+# Copyright 2019 The LevelDB Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file. See the AUTHORS file for names of contributors.
+
+find_library(SNAPPY_LIBRARY
+ NAMES snappy
+ HINTS ${SNAPPY_ROOT_DIR}/lib
+)
+
+find_path(SNAPPY_INCLUDE_DIR
+ NAMES snappy.h
+ HINTS ${SNAPPY_ROOT_DIR}/include
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Snappy DEFAULT_MSG SNAPPY_LIBRARY SNAPPY_INCLUDE_DIR)
+
+mark_as_advanced(SNAPPY_LIBRARY SNAPPY_INCLUDE_DIR)
+
+if(SNAPPY_FOUND)
+ set(HAVE_SNAPPY TRUE) # For compatibity with generating port_config.h.
+
+ # Add imported targets.
+ # Follow the package naming convetion 'Snappy::' from
+ # https://github.com/google/snappy/blob/master/CMakeLists.txt#L211.
+ add_library(Snappy::snappy UNKNOWN IMPORTED)
+ set_target_properties(Snappy::snappy PROPERTIES
+ IMPORTED_LOCATION ${SNAPPY_LIBRARY}
+ INTERFACE_INCLUDE_DIRECTORIES ${SNAPPY_INCLUDE_DIR}
+ )
+endif()
--
2.26.2