Find zookeeper and boost properly using cmake

CMakeLists.txt

@@ -2,17 +2,17 @@ cmake_minimum_required(VERSION 2.8.1)
 project(cppkafka)
 
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall")
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake/")
 
 include_directories(${CMAKE_SOURCE_DIR}/include/cppkafka)
 
-add_subdirectory(src)
-
 set(GOOGLETEST_ROOT ${CMAKE_SOURCE_DIR}/third_party/googletest)
 set(GOOGLETEST_INCLUDE ${GOOGLETEST_ROOT}/googletest/include)
 set(GOOGLETEST_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/googletest)
 set(GOOGLETEST_LIBRARY ${GOOGLETEST_BINARY_DIR}/googletest)
 
 include(ExternalProject)
+
 ExternalProject_Add(
     googletest
     DOWNLOAD_COMMAND ""
@@ -22,12 +22,18 @@ ExternalProject_Add(
                      "-Dgtest_force_shared_crt:bool=ON"
     INSTALL_COMMAND ""
 )
-# Make sure we build googletest before anything else
+
-add_dependencies(cppkafka googletest)
+# Look for Boost (just need boost.optional headers here)
+find_package(Boost REQUIRED)
+include_directories(${Boost_INCLUDE_DIRS})
 
 option(ENABLE_ZOOKEEPER "Whether to enable zookeeper support" ON)
-
 if (ENABLE_ZOOKEEPER)
+    find_package(Zookeeper REQUIRED)
+
+    message(STATUS "Found zookeeper library")
+    include_directories(${ZOOKEEPER_INCLUDE_DIR})
+
     set(CPPKAFKA_HAVE_ZOOKEEPER ON)
 endif()
 
@@ -37,5 +43,8 @@ configure_file(
   "${CMAKE_CURRENT_SOURCE_DIR}/include/cppkafka/config.h"
 )
 
+add_subdirectory(src)
+# Make sure we build googletest before anything else
+add_dependencies(cppkafka googletest)
 enable_testing()
 add_subdirectory(tests)

cmake/FindZookeeper.cmake

@@ -0,0 +1,33 @@
+find_path(ZOOKEEPER_ROOT_DIR
+    NAMES include/zookeeper/zookeeper.h
+)
+
+find_path(ZOOKEEPER_INCLUDE_DIR
+    NAMES zookeeper/zookeeper.h
+    HINTS ${ZOOOKEEPER_ROOT_DIR}/include
+)
+
+set (HINT_DIR ${ZOOKEEPER_ROOT_DIR}/lib)
+
+find_library(ZOOKEEPER_LIBRARY
+    NAMES zookeeper_mt zookeeper_st
+    HINTS ${HINT_DIR}
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(ZOOKEEPER DEFAULT_MSG
+    ZOOKEEPER_LIBRARY
+    ZOOKEEPER_INCLUDE_DIR
+)
+
+include(CheckCXXSourceCompiles)
+
+set(CMAKE_REQUIRED_LIBRARIES ${ZOOKEEPER_LIBRARY})
+check_cxx_source_compiles("int main() { return 0; }" ZOOKEEPER_LINKS)
+set(CMAKE_REQUIRED_LIBRARIES)
+
+mark_as_advanced(
+    ZOOKEEPER_ROOT_DIR
+    ZOOKEEPER_INCLUDE_DIR
+    ZOOKEEPER_LIBRARY
+)

tests/CMakeLists.txt

@@ -19,7 +19,7 @@ add_definitions("-DKAFKA_TEST_INSTANCE=\"${KAFKA_TEST_INSTANCE}\"")
 add_definitions("-DZOOKEEPER_TEST_INSTANCE=\"${ZOOKEEPER_TEST_INSTANCE}\"")
 
 if (ENABLE_ZOOKEEPER)
-    link_libraries(zookeeper_mt)
+    link_libraries(${ZOOKEEPER_LIBRARY})
 endif()
 
 create_test(consumer)