if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION
                                            VERSION_GREATER 4.1.2)
  # -Werror=* was introduced -after- GCC 4.1.2
  add_compile_options("-Werror=strict-aliasing")
endif()

include(CheckIncludeFileCXX)
include(CheckTypeSize)
include(CheckStructHasMember)
include(CheckCXXSymbolExists)

check_include_file_cxx(clocale HAVE_CLOCALE)
check_cxx_symbol_exists(localeconv clocale HAVE_LOCALECONV)

set(CMAKE_EXTRA_INCLUDE_FILES clocale)
check_type_size(lconv LCONV_SIZE LANGUAGE CXX)
unset(CMAKE_EXTRA_INCLUDE_FILES)
check_struct_has_member(lconv decimal_point clocale HAVE_DECIMAL_POINT LANGUAGE
                        CXX)

if(NOT
   (HAVE_CLOCALE
    AND HAVE_LCONV_SIZE
    AND HAVE_DECIMAL_POINT
    AND HAVE_LOCALECONV))
  message(WARNING "Locale functionality is not supported")
  if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.12.0)
    add_compile_definitions(JSONCPP_NO_LOCALE_SUPPORT)
  else()
    add_definitions(-DJSONCPP_NO_LOCALE_SUPPORT)
  endif()
endif()

set(JSONCPP_INCLUDE_DIR ../../include)

set(PUBLIC_HEADERS
    ${JSONCPP_INCLUDE_DIR}/json/config.h
    ${JSONCPP_INCLUDE_DIR}/json/forwards.h
    ${JSONCPP_INCLUDE_DIR}/json/json_features.h
    ${JSONCPP_INCLUDE_DIR}/json/value.h
    ${JSONCPP_INCLUDE_DIR}/json/reader.h
    ${JSONCPP_INCLUDE_DIR}/json/version.h
    ${JSONCPP_INCLUDE_DIR}/json/writer.h
    ${JSONCPP_INCLUDE_DIR}/json/assertions.h)

source_group("Public API" FILES ${PUBLIC_HEADERS})

set(JSONCPP_SOURCES json_tool.h json_reader.cpp json_valueiterator.inl
                    json_value.cpp json_writer.cpp)

# Install instructions for this target
if(JSONCPP_WITH_CMAKE_PACKAGE)
  set(INSTALL_EXPORT EXPORT jsoncpp)
else()
  set(INSTALL_EXPORT)
endif()

# Specify compiler features required when compiling a given target. See
# https://cmake.org/cmake/help/v3.1/prop_gbl/CMAKE_CXX_KNOWN_FEATURES.html#prop_gbl:CMAKE_CXX_KNOWN_FEATURES
# for complete list of features available
list(
  APPEND
  REQUIRED_FEATURES
  cxx_std_11 # Compiler mode is aware of C++ 11.
  # MSVC 1900 cxx_alignas # Alignment control alignas, as defined in N2341. MSVC
  # 1900 cxx_alignof # Alignment control alignof, as defined in N2341. MSVC 1900
  # cxx_attributes # Generic attributes, as defined in N2761.
  cxx_auto_type # Automatic type deduction, as defined in N1984.
  # MSVC 1900 cxx_constexpr # Constant expressions, as defined in N2235.
  cxx_decltype # Decltype, as defined in N2343.
  cxx_default_function_template_args # Default template arguments for function
                                     # templates, as defined in DR226
  cxx_defaulted_functions # Defaulted functions, as defined in N2346.
  # MSVC 1900 cxx_defaulted_move_initializers # Defaulted move initializers, as
  # defined in N3053.
  cxx_delegating_constructors # Delegating constructors, as defined in N1986.
  # MSVC 1900 cxx_deleted_functions # Deleted functions, as defined in N2346.
  cxx_enum_forward_declarations # Enum forward declarations, as defined in
                                # N2764.
  cxx_explicit_conversions # Explicit conversion operators, as defined in N2437.
  cxx_extended_friend_declarations # Extended friend declarations, as defined in
                                   # N1791.
  cxx_extern_templates # Extern templates, as defined in N1987.
  cxx_final # Override control final keyword, as defined in N2928, N3206 and
            # N3272.
  # MSVC 1900 cxx_func_identifier # Predefined __func__ identifier, as defined
  # in N2340. MSVC 1900 cxx_generalized_initializers # Initializer lists, as
  # defined in N2672. MSVC 1900 cxx_inheriting_constructors # Inheriting
  # constructors, as defined in N2540. MSVC 1900 cxx_inline_namespaces # Inline
  # namespaces, as defined in N2535.
  cxx_lambdas # Lambda functions, as defined in N2927.
  # MSVC 1900 cxx_local_type_template_args # Local and unnamed types as template
  # arguments, as defined in N2657.
  cxx_long_long_type # long long type, as defined in N1811.
  # MSVC 1900 cxx_noexcept # Exception specifications, as defined in N3050. MSVC
  # 1900 cxx_nonstatic_member_init # Non-static data member initialization, as
  # defined in N2756.
  cxx_nullptr # Null pointer, as defined in N2431.
  cxx_override # Override control override keyword, as defined in N2928, N3206
               # and N3272.
  cxx_range_for # Range-based for, as defined in N2930.
  cxx_raw_string_literals # Raw string literals, as defined in N2442.
  # MSVC 1900 cxx_reference_qualified_functions # Reference qualified functions,
  # as defined in N2439.
  cxx_right_angle_brackets # Right angle bracket parsing, as defined in N1757.
  cxx_rvalue_references # R-value references, as defined in N2118.
  # MSVC 1900 cxx_sizeof_member # Size of non-static data members, as defined in
  # N2253.
  cxx_static_assert # Static assert, as defined in N1720.
  cxx_strong_enums # Strongly typed enums, as defined in N2347.
  # MSVC 1900 cxx_thread_local # Thread-local variables, as defined in N2659.
  cxx_trailing_return_types # Automatic function return type, as defined in
                            # N2541.
  # MSVC 1900 cxx_unicode_literals # Unicode string literals, as defined in
  # N2442.
  cxx_uniform_initialization # Uniform initialization, as defined in N2640.
  # MSVC 1900 cxx_unrestricted_unions # Unrestricted unions, as defined in
  # N2544. MSVC 1900 cxx_user_literals # User-defined literals, as defined in
  # N2765.
  cxx_variadic_macros # Variadic macros, as defined in N1653.
  cxx_variadic_templates # Variadic templates, as defined in N2242.
)

if(BUILD_SHARED_LIBS)
  if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.12.0)
    add_compile_definitions(JSON_DLL_BUILD)
  else()
    add_definitions(-DJSON_DLL_BUILD)
  endif()

  set(SHARED_LIB ${PROJECT_NAME}_lib)
  add_library(${SHARED_LIB} SHARED ${PUBLIC_HEADERS} ${JSONCPP_SOURCES})
  set_target_properties(
    ${SHARED_LIB}
    PROPERTIES OUTPUT_NAME jsoncpp
               VERSION ${PROJECT_VERSION}
               SOVERSION ${PROJECT_SOVERSION}
               POSITION_INDEPENDENT_CODE ${BUILD_SHARED_LIBS})

  # Set library's runtime search path on OSX
  if(APPLE)
    set_target_properties(${SHARED_LIB} PROPERTIES INSTALL_RPATH
                                                   "@loader_path/.")
  endif()

  target_compile_features(${SHARED_LIB} PUBLIC ${REQUIRED_FEATURES})

  target_include_directories(
    ${SHARED_LIB}
    PUBLIC $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
           $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/${JSONCPP_INCLUDE_DIR}>
           $<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include/json>)

  list(APPEND CMAKE_TARGETS ${SHARED_LIB})
endif()

if(BUILD_STATIC_LIBS)
  set(STATIC_LIB ${PROJECT_NAME}_static)
  add_library(${STATIC_LIB} STATIC ${PUBLIC_HEADERS} ${JSONCPP_SOURCES})

  # avoid name clashes on windows as the shared import lib is alse named
  # jsoncpp.lib
  if(NOT DEFINED STATIC_SUFFIX AND BUILD_SHARED_LIBS)
    if(MSVC)
      set(STATIC_SUFFIX "_static")
    else()
      set(STATIC_SUFFIX "")
    endif()
  endif()

  set_target_properties(
    ${STATIC_LIB} PROPERTIES OUTPUT_NAME jsoncpp${STATIC_SUFFIX}
                             VERSION ${PROJECT_VERSION})

  # Set library's runtime search path on OSX
  if(APPLE)
    set_target_properties(${STATIC_LIB} PROPERTIES INSTALL_RPATH
                                                   "@loader_path/.")
  endif()

  target_compile_features(${STATIC_LIB} PUBLIC ${REQUIRED_FEATURES})

  target_include_directories(
    ${STATIC_LIB}
    PUBLIC $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
           $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/${JSONCPP_INCLUDE_DIR}>
           $<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include/json>)

  list(APPEND CMAKE_TARGETS ${STATIC_LIB})
endif()

if(BUILD_OBJECT_LIBS)
  set(OBJECT_LIB ${PROJECT_NAME}_object)
  add_library(${OBJECT_LIB} OBJECT ${PUBLIC_HEADERS} ${JSONCPP_SOURCES})

  set_target_properties(
    ${OBJECT_LIB}
    PROPERTIES OUTPUT_NAME jsoncpp
               VERSION ${PROJECT_VERSION}
               SOVERSION ${PROJECT_SOVERSION}
               POSITION_INDEPENDENT_CODE ${BUILD_SHARED_LIBS})

  # Set library's runtime search path on OSX
  if(APPLE)
    set_target_properties(${OBJECT_LIB} PROPERTIES INSTALL_RPATH
                                                   "@loader_path/.")
  endif()

  target_compile_features(${OBJECT_LIB} PUBLIC ${REQUIRED_FEATURES})

  target_include_directories(
    ${OBJECT_LIB}
    PUBLIC $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
           $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/${JSONCPP_INCLUDE_DIR}>
           $<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include/json>)

  list(APPEND CMAKE_TARGETS ${OBJECT_LIB})
endif()

# install(TARGETS ${CMAKE_TARGETS} ${INSTALL_EXPORT} RUNTIME DESTINATION
# ${CMAKE_INSTALL_BINDIR} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} ARCHIVE
# DESTINATION ${CMAKE_INSTALL_LIBDIR} OBJECTS DESTINATION
# ${CMAKE_INSTALL_LIBDIR} )
