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# Finds (or builds) the ELF2UF2 executable
#
# This will define the following variables
#
# ELF2UF2_FOUND
#
# and the following imported targets
#
# ELF2UF2
#
if (NOT ELF2UF2_FOUND)
# todo we would like to use pckgconfig to look for it first
# see https://pabloariasal.github.io/2018/02/19/its-time-to-do-cmake-right/
include(ExternalProject)
set(ELF2UF2_SOURCE_DIR ${PICO_SDK_PATH}/tools/elf2uf2)
set(ELF2UF2_BINARY_DIR ${CMAKE_BINARY_DIR}/elf2uf2)
set(ELF2UF2_BUILD_TARGET ELF2UF2Build)
set(ELF2UF2_TARGET ELF2UF2)
if (NOT TARGET ${ELF2UF2_BUILD_TARGET})
pico_message_debug("ELF2UF2 will need to be built")
ExternalProject_Add(${ELF2UF2_BUILD_TARGET}
PREFIX elf2uf2 SOURCE_DIR ${ELF2UF2_SOURCE_DIR}
BINARY_DIR ${ELF2UF2_BINARY_DIR}
BUILD_ALWAYS 1 # force dependency checking
INSTALL_COMMAND ""
)
endif()
set(ELF2UF2_EXECUTABLE ${ELF2UF2_BINARY_DIR}/elf2uf2)
if(NOT TARGET ${ELF2UF2_TARGET})
add_executable(${ELF2UF2_TARGET} IMPORTED)
endif()
set_property(TARGET ${ELF2UF2_TARGET} PROPERTY IMPORTED_LOCATION
${ELF2UF2_EXECUTABLE})
add_dependencies(${ELF2UF2_TARGET} ${ELF2UF2_BUILD_TARGET})
set(ELF2UF2_FOUND 1)
endif()
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