Adding CMAKE subdir

cmake/CppKafkaConfig.cmake

@@ -0,0 +1,57 @@
+
+####### Expanded from @PACKAGE_INIT@ by configure_package_config_file() #######
+####### Any changes to this file will be overwritten by the next CMake run ####
+####### The input file was config.cmake.in                            ########
+
+get_filename_component(PACKAGE_PREFIX_DIR "${CMAKE_CURRENT_LIST_DIR}/../../../" ABSOLUTE)
+
+macro(set_and_check _var _file)
+  set(${_var} "${_file}")
+  if(NOT EXISTS "${_file}")
+    message(FATAL_ERROR "File or directory ${_file} referenced by variable ${_var} does not exist !")
+  endif()
+endmacro()
+
+macro(check_required_components _NAME)
+  foreach(comp ${${_NAME}_FIND_COMPONENTS})
+    if(NOT ${_NAME}_${comp}_FOUND)
+      if(${_NAME}_FIND_REQUIRED_${comp})
+        set(${_NAME}_FOUND FALSE)
+      endif()
+    endif()
+  endforeach()
+endmacro()
+
+####################################################################################
+
+include(CMakeFindDependencyMacro)
+
+# Add FindRdKafka.cmake
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_LIST_DIR}")
+
+set(RDKAFKA_MIN_VERSION_HEX "0x00090400")
+
+# 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}/CppKafkaTargets.cmake")
+
+# Export 'CppKafka_ROOT'
+set_and_check(CppKafka_ROOT "${PACKAGE_PREFIX_DIR}")
+
+# Export 'CppKafka_INSTALL_INCLUDE_DIR'
+set_and_check(CppKafka_INSTALL_INCLUDE_DIR "${PACKAGE_PREFIX_DIR}/include")
+
+# Export 'CppKafka_INSTALL_LIB_DIR'
+set_and_check(CppKafka_INSTALL_LIB_DIR "${PACKAGE_PREFIX_DIR}/lib")
+
+# Validate installed components
+check_required_components("CppKafka")