############################################################
# some preparations so that the CMakeDetermineXXX.cmake files will work in scripted mode

# overwrite MARK_AS_ADVANCED(), since this is used in CMakeDetermineCCompiler.cmake
# which will complain that it can"t be used in script mode
macro(MARK_AS_ADVANCED)
endmacro(MARK_AS_ADVANCED)

# set this to a place where we are allowed to write
set(CMAKE_PLATFORM_ROOT_BIN "${CMAKE_CURRENT_BINARY_DIR}")

# don't run the compiler detection
set(CMAKE_C_COMPILER_ID_RUN 1)
set(CMAKE_CXX_COMPILER_ID_RUN 1)

set(MY_SOURCE_DIR "@CMAKE_CURRENT_SOURCE_DIR@")

############################################################

# now define a toolchain file and check that everything is 
# detected correctly and nothing predefined is overwritten

set(CMAKE_TOOLCHAIN_FILE "${MY_SOURCE_DIR}/DummyToolchain.cmake")

include(CMakeDetermineSystem)
include(CMakeDetermineCCompiler)
include(CMakeDetermineCXXCompiler)

#############################################################

# check the results from DetermineSystem

if(NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Dumdidum")
   message(FATAL_ERROR "CMAKE_SYSTEM_NAME overwritten: \"${CMAKE_SYSTEM_NAME}\", was: \"Dumdidum\"")
endif(NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Dumdidum")

if(NOT "${CMAKE_SYSTEM}" STREQUAL "Dumdidum-1.0")
   message(FATAL_ERROR "CMAKE_SYSTEM wrong: \"${CMAKE_SYSTEM}\", expected: \"Dumdidum-1.0\"")
endif(NOT "${CMAKE_SYSTEM}" STREQUAL "Dumdidum-1.0")

if(NOT "${_INCLUDED_TOOLCHAIN_FILE}" STREQUAL "${MY_SOURCE_DIR}/DummyToolchain.cmake")
   message(FATAL_ERROR "wrong toolchain file loaded: \"${_INCLUDED_TOOLCHAIN_FILE}\", expected: \"${MY_SOURCE_DIR}/DummyToolchain.cmake\"")
endif(NOT "${_INCLUDED_TOOLCHAIN_FILE}" STREQUAL "${MY_SOURCE_DIR}/DummyToolchain.cmake")

#############################################################

# check the results from DetermineCCompiler

if(NOT "${_CMAKE_TOOLCHAIN_PREFIX}" STREQUAL "arm-elf-")
   message(FATAL_ERROR "wrong toolchain prefix detected: \"${_CMAKE_TOOLCHAIN_PREFIX}\", expected: \"arm-elf-\"")
endif(NOT "${_CMAKE_TOOLCHAIN_PREFIX}" STREQUAL "arm-elf-")

if(NOT "${_CMAKE_USER_C_COMPILER_PATH}" STREQUAL "/opt/foo/bin")
   message(FATAL_ERROR "wrong C compiler location detected: \"${_CMAKE_USER_C_COMPILER_PATH}\", expected: \"/opt/foo/bin\"")
endif(NOT "${_CMAKE_USER_C_COMPILER_PATH}" STREQUAL "/opt/foo/bin")

if(NOT "${CMAKE_C_OUTPUT_EXTENSION}" STREQUAL ".foo")
   message(FATAL_ERROR "C output extension overwritten: \"${CMAKE_C_OUTPUT_EXTENSION}\", was: \".foo\"")
endif(NOT "${CMAKE_C_OUTPUT_EXTENSION}" STREQUAL ".foo")

#############################################################

# check the results from DetermineCXXCompiler

if(NOT "${_CMAKE_TOOLCHAIN_SUFFIX}" STREQUAL "arm")
   message(FATAL_ERROR "wrong toolchain suffix detected: \"${_CMAKE_TOOLCHAIN_SUFFIX}\", expected: \"arm\"")
endif(NOT "${_CMAKE_TOOLCHAIN_SUFFIX}" STREQUAL "arm")

if(NOT "${_CMAKE_USER_CXX_COMPILER_PATH}" STREQUAL "/opt/bar/bin")
   message(FATAL_ERROR "wrong CXX compiler location detected: \"${_CMAKE_USER_CXX_COMPILER_PATH}\", expected: \"/opt/bar/bin\"")
endif(NOT "${_CMAKE_USER_CXX_COMPILER_PATH}" STREQUAL "/opt/bar/bin")

if(NOT "${CMAKE_CXX_OUTPUT_EXTENSION}" STREQUAL ".bar")
   message(FATAL_ERROR "C output extension overwritten: \"${CMAKE_CXX_OUTPUT_EXTENSION}\", was: \".bar\"")
endif(NOT "${CMAKE_CXX_OUTPUT_EXTENSION}" STREQUAL ".bar")

message(STATUS "CMAKE_SYSTEM: \"${CMAKE_SYSTEM}\"")
message(STATUS "_CMAKE_TOOLCHAIN_SUFFIX: \"${_CMAKE_TOOLCHAIN_SUFFIX}\"")
message(STATUS "_CMAKE_TOOLCHAIN_PREFIX: \"${_CMAKE_TOOLCHAIN_PREFIX}\"")
message(STATUS "_CMAKE_USER_C_COMPILER_PATH: \"${_CMAKE_USER_C_COMPILER_PATH}\"")
message(STATUS "_CMAKE_USER_CXX_COMPILER_PATH: \"${_CMAKE_USER_CXX_COMPILER_PATH}\"")
message(STATUS "CMAKE_C_OUTPUT_EXTENSION: \"${CMAKE_C_OUTPUT_EXTENSION}\"")
message(STATUS "CMAKE_CXX_OUTPUT_EXTENSION: \"${CMAKE_CXX_OUTPUT_EXTENSION}\"")