From: Kefu Chai <tchaikov@gmail.com>
Date: Wed, 25 Jul 2018 11:49:38 +0000 (+0800)
Subject: cmake: link against libsnappy.a if WITH_SNAPPY_STATIC_LIB
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=8e78d1040a6e2bae1577c484feefb2b92038ab9d;p=rocksdb.git

cmake: link against libsnappy.a if WITH_SNAPPY_STATIC_LIB

Signed-off-by: Kefu Chai <tchaikov@gmail.com>
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7a5df421..d25a2097 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -80,6 +80,8 @@ else()
   endif()
 
   if(WITH_SNAPPY)
+    option(WITH_SNAPPY_STATIC_LIB "build with libsnappy.a" OFF)
+    set(SNAPPY_USE_STATIC_LIB ${WITH_SNAPPY_STATIC_LIB})
     find_package(snappy REQUIRED)
     add_definitions(-DSNAPPY)
     include_directories(${SNAPPY_INCLUDE_DIR})
diff --git a/cmake/modules/Findsnappy.cmake b/cmake/modules/Findsnappy.cmake
index 6ed5fda3..aaa47004 100644
--- a/cmake/modules/Findsnappy.cmake
+++ b/cmake/modules/Findsnappy.cmake
@@ -5,13 +5,29 @@
 # SNAPPY_LIBRARIES - List of libraries when using snappy.
 # SNAPPY_FOUND - True if snappy found.
 
+find_package(PkgConfig)
+pkg_search_module(PC_snappy
+  QUIET snappy)
+
 find_path(SNAPPY_INCLUDE_DIR
   NAMES snappy.h
-  HINTS ${SNAPPY_ROOT_DIR}/include)
+  HINTS
+    ${PC_snappy_INCLUDE_DIRS}
+    ${SNAPPY_ROOT_DIR}/include)
+
 
+if(SNAPPY_USE_STATIC_LIB)
+  set(_snappy_orig_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
+  set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_STATIC_LIBRARY_SUFFIX})
+endif()
 find_library(SNAPPY_LIBRARIES
   NAMES snappy
-  HINTS ${SNAPPY_ROOT_DIR}/lib)
+  HINTS
+    ${PC_snappy_LIBRARY_DIRS}
+    ${SNAPPY_ROOT_DIR}/lib)
+if(SNAPPY_USE_STATIC_LIB)
+  set(CMAKE_FIND_LIBRARY_SUFFIXES ${_snappy_orig_FIND_LIBRARY_SUFFIXES})
+endif()
 
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(snappy DEFAULT_MSG SNAPPY_LIBRARIES SNAPPY_INCLUDE_DIR)