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https://github.com/raspberrypi/pico-sdk.git
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74b6c1ccc3
Add a -nostdlib specifically for the check to ensure that it builds successfully. The -nostdlib isn't needed normally, because linking against the pico SDK will add in definitions for the previously-missing function
19 lines
755 B
CMake
19 lines
755 B
CMake
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get_property(IS_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE)
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foreach(LANG IN ITEMS C CXX ASM)
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set(CMAKE_${LANG}_FLAGS_INIT "${ARM_TOOLCHAIN_COMMON_FLAGS}")
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if (PICO_DEOPTIMIZED_DEBUG)
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set(CMAKE_${LANG}_FLAGS_DEBUG_INIT "-O0")
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else()
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set(CMAKE_${LANG}_FLAGS_DEBUG_INIT "-Og")
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endif()
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set(CMAKE_${LANG}_LINK_FLAGS "-Wl,--build-id=none")
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# try_compile is where the feature testing is done, and at that point,
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# pico_standard_link is not ready to be linked in to provide essential
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# functions like _exit. So pass -nostdlib so it doesn't link in an exit()
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# function at all.
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if(IS_IN_TRY_COMPILE)
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set(CMAKE_${LANG}_LINK_FLAGS "${CMAKE_${LANG}_LINK_FLAGS} -nostdlib")
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endif()
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endforeach()
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