###########################################################
#   Top level CMakeLists.txt file for the MOOS Project
#   pnewman@robots.ox.ac.uk
###########################################################


CMAKE_MINIMUM_REQUIRED(VERSION 2.8)

if(COMMAND cmake_policy)
   cmake_policy(SET CMP0003 NEW)
endif(COMMAND cmake_policy)

set(PROJECTNAME MOOSGeodesy)
project(${PROJECTNAME})

INCLUDE(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
IF(COMPILER_SUPPORTS_CXX11)
  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
  ADD_DEFINITIONS(-D_USE_UNIQUE_PTR)
ELSEIF(COMPILER_SUPPORTS_CXX0X)
  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
  ADD_DEFINITIONS(-D_USE_UNIQUE_PTR)
ELSE()
  MESSAGE(STATUS "${CMAKE_CXX_COMPILER} has no C++11 support.")
  REMOVE_DEFINITIONS(-D_USE_UNIQUE_PTR)
ENDIF()

set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/bin)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/lib)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/lib)


set(CMakeScripts_MODULE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
set(CMAKE_MODULE_PATH ${CMakeScripts_MODULE_DIR})


# Turn on all compiler warnings
include(EnableAllWarnings)

# Bring in helper functions for dealing with CACHE INTERNAL variables
include(CacheInternalHelpers)

# We want to create dynamic libraries
set(BUILD_SHARED_LIBS true)

# Enable Doxygen build with 'make doxygen'
option(ENABLE_DOXYGEN "Enable a 'make doc' target for Doxygen documentation")
if (ENABLE_DOXYGEN)
    include(UseDoxygen)
endif()


###########  SETTING UP PREPROCESSOR ################
include(PlatformDefines)


#####################################################
# Toby Schneider's request for fPIC on amd64
IF("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86_64")
 SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC"  )
ENDIF("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86_64")


add_subdirectory(libMOOSGeodesy)


#########################
# Config Script Creation
#########################

# Add your library's name to PROJECT_EXPORT_LIBS if you wish to have it exported
# (This is a CACHE INTERNAL variable)
option(ENABLE_EXPORT "do you want CMake to record this build so other projects can find it " ON)

if(ENABLE_EXPORT)
   message(STATUS "location of this build will be exported, set ENABLE_EXPORT to OFF if you don't want this and delete ~/.cmake/projects/MOOS ")
if (PROJECT_EXPORT_LIBS)
    
    message(STATUS "PROJECT_EXPORT_LIBS = ${PROJECT_EXPORT_LIBS}")
    
    # Provide a cmake config script for the build directory
    export(TARGETS
        ${PROJECT_EXPORT_LIBS}
        FILE
        Use${PROJECTNAME}.cmake
    )

    set(CONFIG_FILE "${PROJECT_BINARY_DIR}/${PROJECTNAME}Config.cmake")
    configure_file( "cmake/ProjectConfig.cmake.in" ${CONFIG_FILE} @ONLY )
    
    # Append libary specific lines to the generated config script
    foreach(EXPORT_LIB ${PROJECT_EXPORT_LIBS})
        file(APPEND ${CONFIG_FILE} "\n# Export variables for ${EXPORT_LIB} Library\n")
        file(APPEND ${CONFIG_FILE} "set(${EXPORT_LIB}_LIBRARIES \"${${EXPORT_LIB}_LIBRARIES}\")\n")

        file(APPEND ${CONFIG_FILE} "set(${EXPORT_LIB}_INCLUDE_DIRS \"${${EXPORT_LIB}_INCLUDE_DIRS}\")\n")
        file(APPEND ${CONFIG_FILE} "set(${EXPORT_LIB}_LIBRARY_PATH \"${${EXPORT_LIB}_DEPEND_INCLUDE_DIRS}/../../lib\")\n")
#        file(APPEND ${CONFIG_FILE} "set(${EXPORT_LIB}_LIBRARY_PATHX \"HELLO\")\n")

        file(APPEND ${CONFIG_FILE} "set(${EXPORT_LIB}_DEPEND_LIBRARIES \"${${EXPORT_LIB}_DEPEND_LIBRARIES}\")\n")
        file(APPEND ${CONFIG_FILE} "set(${EXPORT_LIB}_DEPEND_INCLUDE_DIRS \"${${EXPORT_LIB}_DEPEND_INCLUDE_DIRS}\")\n")
    endforeach()

endif()


# Stick build location in the central CMake user package registry, so that it may be easily found
if ("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" GREATER 2.7)
  export(PACKAGE ${PROJECTNAME})
endif()

endif()