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# PICO_CMAKE_CONFIG: PICO_TOOLCHAIN_PATH, Path to search for compiler, default=none (i.e. search system paths), group=build
set(PICO_TOOLCHAIN_PATH "${PICO_TOOLCHAIN_PATH}" CACHE INTERNAL "")
# Set a default build type if none was specified
set(default_build_type "Release")
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
message(STATUS "Defaulting build type to '${default_build_type}' since not specified.")
set(CMAKE_BUILD_TYPE "${default_build_type}" CACHE STRING "Choose the type of build, options are: 'Debug', 'Release', 'MinSizeRel', 'RelWithDebInfo'." FORCE)
# Set the possible values of build type for cmake-gui
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
"Debug" "Release" "MinSizeRel" "RelWithDebInfo")
endif()
if (CMAKE_BUILD_TYPE STREQUAL "Default")
error("Default build type is NOT supported")
endif()
# PICO_CMAKE_CONFIG: PICO_COMPILER, Optionally specifies a different compiler (other than pico_arm_gcc.cmake) - this is not yet fully supported, default=none, group=build
# If PICO_COMPILER is specified, set toolchain file to ${PICO_COMPILER}.cmake.
if (DEFINED PICO_COMPILER)
if (DEFINED CMAKE_TOOLCHAIN_FILE)
get_filename_component(toolchain "${CMAKE_TOOLCHAIN_FILE}" NAME_WE)
if (NOT "${PICO_COMPILER}" STREQUAL "${toolchain}")
message(WARNING "CMAKE_TOOLCHAIN_FILE is already defined to ${toolchain}.cmake, you\
need to delete cache and reconfigure if you want to switch compiler.")
endif ()
else ()
set(toolchain_dir "${CMAKE_CURRENT_LIST_DIR}/preload/toolchains")
set(toolchain_file "${toolchain_dir}/${PICO_COMPILER}.cmake")
if (EXISTS "${toolchain_file}")
set(CMAKE_TOOLCHAIN_FILE "${toolchain_file}" CACHE INTERNAL "")
else ()
# todo improve message
message(FATAL_ERROR "Toolchain file \"${PICO_COMPILER}.cmake\" does not exist, please\
select one from \"cmake/toolchains\" folder.")
endif ()
endif ()
message("PICO compiler is ${PICO_COMPILER}")
endif ()
unset(PICO_COMPILER CACHE)
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