Merge pull request #204 from accelerated/cmake

Add CMake configuration file and export installed targets

.travis.yml

@@ -37,7 +37,7 @@ script:
   - ./configure --prefix=./install && make libs && make install
   - cd ..
   - mkdir build && cd build
-  - cmake .. -DRDKAFKA_ROOT_DIR=../librdkafka/install/ -DKAFKA_TEST_INSTANCE=localhost:9092
+  - cmake .. -DCPPKAFKA_CMAKE_VERBOSE=ON -DRDKAFKA_ROOT=./librdkafka/install -DKAFKA_TEST_INSTANCE=localhost:9092
   - make examples
   - make tests
   - ./tests/cppkafka_tests

CMakeLists.txt

@@ -1,12 +1,20 @@
-cmake_minimum_required(VERSION 2.8.1)
+cmake_minimum_required(VERSION 3.9.2)
-project(cppkafka)
+project(CppKafka)
+if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.12.0")
+    # Use <package>_ROOT variable to find configuration files
+    cmake_policy(SET CMP0074 NEW)
+endif()
+
+include(GNUInstallDirs)
+include(CMakePackageConfigHelpers)
 
 # Set the version number.
 set(CPPKAFKA_VERSION_MAJOR 0)
 set(CPPKAFKA_VERSION_MINOR 3)
 set(CPPKAFKA_VERSION_REVISION 1)
 set(CPPKAFKA_VERSION "${CPPKAFKA_VERSION_MAJOR}.${CPPKAFKA_VERSION_MINOR}.${CPPKAFKA_VERSION_REVISION}")
-set(RDKAFKA_MIN_VERSION 0x00090400)
+set(RDKAFKA_MIN_VERSION "0.9.4")
+set(RDKAFKA_MIN_VERSION_HEX 0x00090400)
 
 if (NOT CMAKE_CXX_FLAGS)
     # Set default compile flags for the project
@@ -23,7 +31,6 @@ if (NOT CMAKE_CXX_FLAGS)
         set(CMAKE_CXX_FLAGS "-std=c++11 -Wall")
     endif()
 endif()
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake/")
 
 # Set output directories
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/lib)
@@ -37,16 +44,35 @@ option(CPPKAFKA_DISABLE_EXAMPLES "Disable build of cppkafka examples." OFF)
 option(CPPKAFKA_BOOST_STATIC_LIBS "Link with Boost static libraries." ON)
 option(CPPKAFKA_BOOST_USE_MULTITHREADED "Use Boost multithreaded libraries." ON)
 option(CPPKAFKA_RDKAFKA_STATIC_LIB "Link with Rdkafka static library." OFF)
+option(CPPKAFKA_EXPORT_PKGCONFIG "Generate 'cppkafka.pc' file" ON)
+option(CPPKAFKA_EXPORT_CMAKE_CONFIG "Generate CMake config, target and version files." ON)
 
-math(EXPR BITS "8*${CMAKE_SIZEOF_VOID_P}")
+# Add FindRdKafka.cmake
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake/")
 
-# Properly set the output directory
+if (NOT CPPKAFKA_CONFIG_DIR)
-#if (${BITS} EQUAL 64)
+    set(CPPKAFKA_CONFIG_DIR lib/cmake/${PROJECT_NAME})
-#    set(LIBDIR "lib64")
+endif()
-#else()
+
-#    set(LIBDIR "lib")
+# Maintain previous compatibility
-#endif()
+if (RDKAFKA_ROOT_DIR)
-set(LIBDIR "lib")
+    set(RdKafka_ROOT ${RDKAFKA_ROOT_DIR})
+elseif (RDKAFKA_ROOT)
+    set(RdKafka_ROOT ${RDKAFKA_ROOT})
+endif()
+
+if (RdKafka_ROOT)
+    if (NOT IS_ABSOLUTE ${RdKafka_ROOT})
+        set(RdKafka_ROOT "${CMAKE_SOURCE_DIR}/${RdKafka_ROOT}")
+    endif()
+endif()
+
+if (RDKAFKA_DIR)
+    set(RdKafka_DIR ${RDKAFKA_DIR}) # For older versions of find_package
+    if (NOT IS_ABSOLUTE ${RdKafka_ROOT})
+        set(RdKafka_DIR "${CMAKE_SOURCE_DIR}/${RdKafka_DIR}")
+    endif()
+endif()
 
 # Disable output from find_package macro
 if (NOT CPPKAFKA_CMAKE_VERBOSE)
@@ -61,19 +87,23 @@ else()
     message(STATUS "Build will generate a static library.")
     set(CPPKAFKA_LIBRARY_TYPE STATIC)
     add_definitions("-DCPPKAFKA_STATIC=1")
+    set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 endif()
 
 if (CPPKAFKA_RDKAFKA_STATIC_LIB)
     add_definitions("-DLIBRDKAFKA_STATICLIB")
 endif()
 
+if (NOT CPPKAFKA_CONFIG_DIR)
+    set(CPPKAFKA_CONFIG_DIR lib/cmake/${PROJECT_NAME})
+endif()
+
 if (NOT CPPKAFKA_PKGCONFIG_DIR)
     set(CPPKAFKA_PKGCONFIG_DIR share/pkgconfig)
 endif()
 
 # Look for Boost (just need boost.optional headers here)
 find_package(Boost REQUIRED ${FIND_PACKAGE_QUIET})
-find_package(RdKafka REQUIRED ${FIND_PACKAGE_QUIET})
 
 if (Boost_FOUND)
     find_package(Boost COMPONENTS program_options ${FIND_PACKAGE_QUIET})
@@ -90,8 +120,24 @@ if (Boost_FOUND)
     endif()
 endif()
 
+# Try to find the RdKafka configuration file if present.
+# This will search default system locations as well as RdKafka_ROOT and RdKafka_Dir paths if specified.
+find_package(RdKafka ${FIND_PACKAGE_QUIET} CONFIG)
+set(RDKAFKA_TARGET_IMPORTS ${RdKafka_FOUND})
+if (NOT RdKafka_FOUND)
+    message(STATUS "RdKafkaConfig.cmake not found. Attempting to find module instead...")
+    find_package(RdKafka REQUIRED ${FIND_PACKAGE_QUIET} MODULE)
+    if (NOT RdKafka_FOUND)
+        message(FATAL_ERROR "RdKafka module not found. Please set RDKAFKA_ROOT to the install path or RDKAFKA_DIR pointing to the RdKafka configuration file location.")
+    else()
+        message(STATUS "RdKafka module found.")
+    endif()
+else()
+    message(STATUS "RdKafka configuration file found: ${RdKafka_CONFIG}")
+endif()
+
 add_subdirectory(src)
-add_subdirectory(include)
+add_subdirectory(include/cppkafka)
 
 # Examples target
 if (NOT CPPKAFKA_DISABLE_EXAMPLES AND Boost_PROGRAM_OPTIONS_FOUND)

README.md

@@ -54,10 +54,9 @@ int main() {
 In order to compile _cppkafka_ you need:
 
 * _librdkafka >= 0.9.4_
-* _CMake_
+* _CMake >= 3.9.2_
-* A compiler with good C++11 support (e.g. gcc >= 4.8). This was tested successfully on
+* A compiler with good C++11 support (e.g. gcc >= 4.8). This was tested successfully on _g++ 4.8.3_. 
-_g++ 4.8.3_. 
+* The boost library (for boost::optional)
-* The boost library.
 
 Now, in order to build, just run:
 
@@ -66,12 +65,14 @@ mkdir build
 cd build
 cmake <OPTIONS> ..
 make
+make install
 ```
 
 ## CMake options
 
 The following cmake options can be specified:
-* `RDKAFKA_ROOT_DIR` : Specify a different librdkafka install directory.
+* `RDKAFKA_ROOT` : Specify a different librdkafka install directory.
+* `RDKAFKA_DIR` : Specify a different directory where the RdKafkaConfig.cmake is installed.
 * `BOOST_ROOT` : Specify a different Boost install directory.
 * `CPPKAFKA_CMAKE_VERBOSE` : Generate verbose output. Default is `OFF`.
 * `CPPKAFKA_BUILD_SHARED` : Build cppkafka as a shared library. Default is `ON`.
@@ -80,25 +81,14 @@ The following cmake options can be specified:
 * `CPPKAFKA_BOOST_STATIC_LIBS` : Link with Boost static libraries. Default is `ON`.
 * `CPPKAFKA_BOOST_USE_MULTITHREADED` : Use Boost multi-threaded libraries. Default is `ON`.
 * `CPPKAFKA_RDKAFKA_STATIC_LIB` : Link to Rdkafka static library. Default is `OFF`.
+* `CPPKAFKA_CONFIG_DIR` : Install location of the cmake configuration files. Default is `lib/cmake/cppkafka`.
 * `CPPKAFKA_PKGCONFIG_DIR` : Install location of the .pc file. Default is `share/pkgconfig`.
+* `CPPKAFKA_EXPORT_PKGCONFIG` : Generate `cppkafka.pc` file. Default is `ON`.
+* `CPPKAFKA_EXPORT_CMAKE_CONFIG` : Generate CMake config, target and version files. Default is `ON`.
 
 Example:
 ```Shell
-cmake -DRDKAFKA_ROOT_DIR=/some/other/dir -DCPPKAFKA_BUILD_SHARED=OFF ...
+cmake -DRDKAFKA_ROOT=/some/other/dir -DCPPKAFKA_BUILD_SHARED=OFF ...
-```
-
-The `RDKAFKA_ROOT_DIR` must contain the following structure. If the system
-architecture is 64-bit and both `lib` and `lib64` folders are available, the `lib64`
-folder location will be selected by cmake.
-
-```Shell
-${RDKAFKA_ROOT_DIR}/
-                   |
-                   + include/librdkafka/rdkafka.h
-                   |
-                   + lib/librdkafka.a
-                   |
-                   + lib64/librdkafka.a (optional)
 ```
 
 # Using
@@ -108,6 +98,13 @@ If you want to use _cppkafka_, you'll need to link your application with:
 * _cppkafka_
 * _rdkafka_
 
+If using CMake, this is simplified by doing:
+```cmake
+find_package(CppKafka REQUIRED)
+
+target_link_libraries(<YourLibrary> CppKafka::cppkafka)
+```
+
 # Documentation
 
 You can generate the documentation by running `make docs` inside the build directory. This requires

cmake/FindRdKafka.cmake

@@ -1,55 +1,80 @@
-# Override default CMAKE_FIND_LIBRARY_SUFFIXES
+# This find module helps find the RdKafka module. It exports the following variables:
-# (Allows optional prioritization of static libraries during resolution)
+# - RdKafka_INCLUDE_DIR : The directory where rdkafka.h is located.
+# - RdKafka_LIBNAME : The name of the library, i.e. librdkafka.a, librdkafka.so, etc.
+# - RdKafka_LIBRARY_DIR : The directory where the library is located.
+# - RdKafka_LIBRARY_PATH : The full library path i.e. ${RdKafka_LIBRARY_DIR}/${RdKafka_LIBNAME}
+# - RdKafka::rdkafka : Imported library containing all above properties set.
+
 if (CPPKAFKA_RDKAFKA_STATIC_LIB)
     set(RDKAFKA_PREFIX ${CMAKE_STATIC_LIBRARY_PREFIX})
     set(RDKAFKA_SUFFIX ${CMAKE_STATIC_LIBRARY_SUFFIX})
+    set(RDKAFKA_LIBRARY_TYPE STATIC)
 else()
     set(RDKAFKA_PREFIX ${CMAKE_SHARED_LIBRARY_PREFIX})
     set(RDKAFKA_SUFFIX ${CMAKE_SHARED_LIBRARY_SUFFIX})
+    set(RDKAFKA_LIBRARY_TYPE SHARED)
 endif()
 
-find_path(RDKAFKA_ROOT_DIR
+set(RdKafka_LIBNAME ${RDKAFKA_PREFIX}rdkafka${RDKAFKA_SUFFIX})
-    NAMES include/librdkafka/rdkafka.h
+
+find_path(RdKafka_INCLUDE_DIR
+    NAMES librdkafka/rdkafka.h
+    HINTS ${RdKafka_ROOT}/include
 )
 
-find_path(RDKAFKA_INCLUDE_DIR
+find_path(RdKafka_LIBRARY_DIR
-    NAMES librdkafka/rdkafka.h
+    NAMES ${RdKafka_LIBNAME} rdkafka
-    HINTS ${RDKAFKA_ROOT_DIR}/include
+    HINTS ${RdKafka_ROOT}/lib ${RdKafka_ROOT}/lib64
+)
+
+find_library(RdKafka_LIBRARY_PATH
+    NAMES ${RdKafka_LIBNAME} rdkafka
+    HINTS ${RdKafka_LIBRARY_DIR}
 )
 
 # Check lib paths
 if (CPPKAFKA_CMAKE_VERBOSE)
     get_property(FIND_LIBRARY_32 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB32_PATHS)
     get_property(FIND_LIBRARY_64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
-    MESSAGE(STATUS "RDKAFKA search 32-bit library paths: ${FIND_LIBRARY_32}")
+    message(STATUS "RDKAFKA search 32-bit library paths: ${FIND_LIBRARY_32}")
-    MESSAGE(STATUS "RDKAFKA search 64-bit library paths: ${FIND_LIBRARY_64}")
+    message(STATUS "RDKAFKA search 64-bit library paths: ${FIND_LIBRARY_64}")
+    message(STATUS "RdKafka_ROOT = ${RdKafka_ROOT}")
+    message(STATUS "RdKafka_INCLUDE_DIR = ${RdKafka_INCLUDE_DIR}")
+    message(STATUS "RdKafka_LIBNAME = ${RdKafka_LIBNAME}")
+    message(STATUS "RdKafka_LIBRARY_PATH = ${RdKafka_LIBRARY_PATH}")
+    message(STATUS "RdKafka_LIBRARY_DIR = ${RdKafka_LIBRARY_DIR}")
 endif()
 
-find_library(RDKAFKA_LIBRARY
-    NAMES ${RDKAFKA_PREFIX}rdkafka${RDKAFKA_SUFFIX} rdkafka
-    HINTS ${RDKAFKA_ROOT_DIR}/lib
-)
-
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(RDKAFKA DEFAULT_MSG
-    RDKAFKA_LIBRARY
+    RdKafka_LIBNAME
-    RDKAFKA_INCLUDE_DIR
+    RdKafka_LIBRARY_DIR
+    RdKafka_LIBRARY_PATH
+    RdKafka_INCLUDE_DIR
 )
 
-set(CONTENTS "#include <librdkafka/rdkafka.h>\n #if RD_KAFKA_VERSION >= ${RDKAFKA_MIN_VERSION}\n int main() { }\n #endif")
+set(CONTENTS "#include <librdkafka/rdkafka.h>\n #if RD_KAFKA_VERSION >= ${RDKAFKA_MIN_VERSION_HEX}\n int main() { }\n #endif")
-set(FILE_NAME ${CMAKE_CURRENT_BINARY_DIR}/rdkafka_version_test.c)
+set(FILE_NAME ${CMAKE_CURRENT_BINARY_DIR}/rdkafka_version_test.cpp)
 file(WRITE ${FILE_NAME} ${CONTENTS})
 
-try_compile(HAVE_VALID_KAFKA_VERSION ${CMAKE_CURRENT_BINARY_DIR}
+try_compile(RdKafka_FOUND ${CMAKE_CURRENT_BINARY_DIR}
             SOURCES ${FILE_NAME}
-            CMAKE_FLAGS "-DINCLUDE_DIRECTORIES=${RDKAFKA_INCLUDE_DIR}")
+            CMAKE_FLAGS "-DINCLUDE_DIRECTORIES=${RdKafka_INCLUDE_DIR}")
 
-if (HAVE_VALID_KAFKA_VERSION)
+if (RdKafka_FOUND)
+    add_library(RdKafka::rdkafka ${RDKAFKA_LIBRARY_TYPE} IMPORTED GLOBAL)
+    set(RDKAFKA_DEPENDENCIES pthread rt ssl crypto dl z)
+    set_target_properties(RdKafka::rdkafka PROPERTIES
+            IMPORTED_NAME RdKafka
+            IMPORTED_LOCATION "${RdKafka_LIBRARY_PATH}"
+            INTERFACE_INCLUDE_DIRECTORIES "${RdKafka_INCLUDE_DIR}"
+            INTERFACE_LINK_DIRECTORIES "${RdKafka_LIBRARY_DIR}"
+            INTERFACE_LINK_LIBRARIES "${RDKAFKA_DEPENDENCIES}")
     message(STATUS "Found valid rdkafka version")
     mark_as_advanced(
-        RDKAFKA_ROOT_DIR
-        RDKAFKA_INCLUDE_DIR
         RDKAFKA_LIBRARY
+        RdKafka_LIBRARY_DIR
+        RdKafka_INCLUDE_DIR
     )
 else()
     message(FATAL_ERROR "Failed to find valid rdkafka version")

cmake/config.cmake.in

@@ -0,0 +1,33 @@
+@PACKAGE_INIT@
+
+include(CMakeFindDependencyMacro)
+
+# Add FindRdKafka.cmake
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_LIST_DIR}")
+
+set(RDKAFKA_MIN_VERSION_HEX "@RDKAFKA_MIN_VERSION_HEX@")
+
+# Find boost optional
+find_dependency(Boost REQUIRED)
+
+# Try to find the RdKafka configuration file if present.
+# This will search default system locations as well as RdKafka_ROOT and RdKafka_DIR paths if specified.
+find_package(RdKafka QUIET CONFIG)
+set(RDKAFKA_TARGET_IMPORTS ${RdKafka_FOUND})
+if (NOT RdKafka_FOUND)
+    find_dependency(RdKafka REQUIRED MODULE)
+endif()
+
+include("${CMAKE_CURRENT_LIST_DIR}/@TARGET_EXPORT_NAME@.cmake")
+
+# Export 'CppKafka_ROOT'
+set_and_check(@PROJECT_NAME@_ROOT "@PACKAGE_CMAKE_INSTALL_PREFIX@")
+
+# Export 'CppKafka_INSTALL_INCLUDE_DIR'
+set_and_check(@PROJECT_NAME@_INSTALL_INCLUDE_DIR "@PACKAGE_CMAKE_INSTALL_INCLUDEDIR@")
+
+# Export 'CppKafka_INSTALL_LIB_DIR'
+set_and_check(@PROJECT_NAME@_INSTALL_LIB_DIR "@PACKAGE_CMAKE_INSTALL_LIBDIR@")
+
+# Validate installed components
+check_required_components("@PROJECT_NAME@")

cmake/cppkafka.pc.in

@@ -1,7 +1,7 @@
 prefix=@CMAKE_INSTALL_PREFIX@
 exec_prefix=${prefix}
-libdir=${prefix}/@LIBDIR@
+libdir=${prefix}/@CMAKE_INSTALL_LIBDIR@
-sharedlibdir=${prefix}/@LIBDIR@
+sharedlibdir=${prefix}/@CMAKE_INSTALL_LIBDIR@
 includedir=${prefix}/include
 
 Name: cppkafka

examples/CMakeLists.txt

@@ -1,11 +1,10 @@
-link_libraries(cppkafka ${RDKAFKA_LIBRARY} ${Boost_LIBRARIES} pthread rt ssl crypto dl z)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../include)
-include_directories(SYSTEM ${RDKAFKA_INCLUDE_DIR})
 
 add_custom_target(examples)
 macro(create_example example_name)
     string(REPLACE "_" "-" sanitized_name ${example_name})
     add_executable(${sanitized_name} EXCLUDE_FROM_ALL "${example_name}_example.cpp")
+    target_link_libraries(${sanitized_name} cppkafka RdKafka::rdkafka Boost::boost Boost::program_options)
     add_dependencies(examples ${sanitized_name})
 endmacro()
 

include/CMakeLists.txt

@@ -1 +0,0 @@
-add_subdirectory(cppkafka)

include/cppkafka/CMakeLists.txt

@@ -10,7 +10,7 @@ function(make_cppkafka_header)
     endforeach()
 
     #create file from template
-    configure_file(${PROJECT_SOURCE_DIR}/cppkafka.h.in ${CPPKAFKA_HEADER} @ONLY)
+    configure_file(${PROJECT_SOURCE_DIR}/cmake/cppkafka.h.in ${CPPKAFKA_HEADER} @ONLY)
 endfunction()
 
 # Run file generation function

src/CMakeLists.txt

@@ -26,34 +26,82 @@ set(SOURCES
     utils/roundrobin_poll_strategy.cpp
 )
 
-include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../include/cppkafka)
+set(TARGET_NAME         cppkafka)
-include_directories(SYSTEM ${Boost_INCLUDE_DIRS} ${RDKAFKA_INCLUDE_DIR})
+set(PKG_DIR             "${CMAKE_BINARY_DIR}/package")
+set(PKG_CONFIG_FILE     "${PKG_DIR}/${TARGET_NAME}.pc")
+set(CONFIG_FILE         "${PKG_DIR}/${PROJECT_NAME}Config.cmake")
+set(VERSION_FILE        "${PKG_DIR}/${PROJECT_NAME}ConfigVersion.cmake")
+set(FIND_RDKAFKA_FILE   "${PROJECT_SOURCE_DIR}/cmake/FindRdKafka.cmake")
+set(NAMESPACE           "${PROJECT_NAME}::")
+set(TARGET_EXPORT_NAME  ${PROJECT_NAME}Targets)
 
-add_library(cppkafka ${CPPKAFKA_LIBRARY_TYPE} ${SOURCES})
+add_library(${TARGET_NAME} ${CPPKAFKA_LIBRARY_TYPE} ${SOURCES})
-set_target_properties(cppkafka PROPERTIES VERSION ${CPPKAFKA_VERSION}
+target_include_directories(${TARGET_NAME} PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../include/cppkafka>)
-                                          SOVERSION ${CPPKAFKA_VERSION})
+set_target_properties(${TARGET_NAME} PROPERTIES
-
+        ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_INSTALL_LIBDIR}"
-set(DEPENDENCIES ${RDKAFKA_LIBRARY})
+        ARCHIVE_OUTPUT_NAME "${TARGET_NAME}"
+        LIBRARY_OUTPUT_DIRECTORY "${CMAKE_INSTALL_LIBDIR}"
+        LIBRARY_OUTPUT_NAME "${TARGET_NAME}"
+        INSTALL_RPATH "${CMAKE_INSTALL_LIBDIR}"
+        INSTALL_RPATH_USE_LINK_PATH TRUE
+        VERSION ${CPPKAFKA_VERSION}
+        SOVERSION ${CPPKAFKA_VERSION})
+# In CMake >= 3.15 Boost::boost == Boost::headers
+target_link_libraries(${TARGET_NAME} PUBLIC RdKafka::rdkafka Boost::boost)
 if (WIN32)
     # On windows ntohs and related are in ws2_32
-    set(DEPENDENCIES ${DEPENDENCIES} ws2_32.lib)
+    target_link_libraries(${TARGET_NAME} PUBLIC ws2_32.lib)
 endif()
-target_link_libraries(cppkafka ${DEPENDENCIES})
-target_include_directories(cppkafka PUBLIC ${PROJECT_SOURCE_DIR}/include)
 
+# Install cppkafka target and specify all properties needed for the exported file
 install(
-    TARGETS cppkafka
+    TARGETS ${TARGET_NAME}
-    LIBRARY DESTINATION ${LIBDIR}
+    EXPORT ${TARGET_EXPORT_NAME}
-    ARCHIVE DESTINATION ${LIBDIR}
+    COMPONENT binaries
-    COMPONENT dev
+    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
+    INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
 )
 
-# Generate package configuration file
+if (CPPKAFKA_EXPORT_PKGCONFIG)
-set(PKG_CONFIG ${PROJECT_SOURCE_DIR}/package/cppkafka.pc)
+    # Generate and install pkgconfig file
-configure_file(${PROJECT_SOURCE_DIR}/cppkafka.pc.in ${PKG_CONFIG} @ONLY)
+    configure_file(${PROJECT_SOURCE_DIR}/cmake/cppkafka.pc.in ${PKG_CONFIG_FILE} @ONLY)
 
-install(
+    install(
-    FILES ${PKG_CONFIG}
+        FILES ${PKG_CONFIG_FILE}
-    DESTINATION ${CPPKAFKA_PKGCONFIG_DIR}
+        DESTINATION "${CPPKAFKA_PKGCONFIG_DIR}"
-    COMPONENT pkgconfig
+        COMPONENT pkgconfig
-)
+    )
+endif()
+
+if (CPPKAFKA_EXPORT_CMAKE_CONFIG)
+    # Install the exported file
+    install(
+        EXPORT "${TARGET_EXPORT_NAME}"
+        NAMESPACE "${NAMESPACE}"
+        COMPONENT config
+        DESTINATION "${CPPKAFKA_CONFIG_DIR}"
+    )
+
+    # Generate CMAKE configuration file and exported targets
+    configure_package_config_file(
+        "${PROJECT_SOURCE_DIR}/cmake/config.cmake.in"
+        "${CONFIG_FILE}"
+        INSTALL_DESTINATION "${CPPKAFKA_CONFIG_DIR}"
+        PATH_VARS RDKAFKA_MIN_VERSION_HEX CMAKE_INSTALL_PREFIX CMAKE_INSTALL_INCLUDEDIR CMAKE_INSTALL_LIBDIR
+    )
+
+    # Generate version file
+    write_basic_package_version_file(
+        "${VERSION_FILE}"
+        VERSION ${CPPKAFKA_VERSION}
+        COMPATIBILITY AnyNewerVersion
+    )
+
+    install(
+        FILES "${CONFIG_FILE}" "${VERSION_FILE}" "${FIND_RDKAFKA_FILE}"
+        DESTINATION "${CPPKAFKA_CONFIG_DIR}"
+        COMPONENT config
+    )
+endif()

tests/CMakeLists.txt

@@ -1,6 +1,5 @@
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../include/)
 include_directories(SYSTEM ${CATCH_INCLUDE})
-include_directories(SYSTEM ${RDKAFKA_INCLUDE_DIR})
 
 set(KAFKA_TEST_INSTANCE "kafka-vm:9092" 
     CACHE STRING "The kafka instance to which to connect to run tests")
@@ -24,6 +23,8 @@ add_executable(cppkafka_tests
     # Main file
     test_main.cpp
 )
-target_link_libraries(cppkafka_tests cppkafka ${RDKAFKA_LIBRARY} pthread rt ssl crypto dl z)
+
+# In CMake >= 3.15 Boost::boost == Boost::headers
+target_link_libraries(cppkafka_tests cppkafka RdKafka::rdkafka Boost::boost Boost::program_options )
 add_dependencies(tests cppkafka_tests)
 add_test(cppkafka cppkafka_tests)