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0baf2c43cc
Defining CMake variables from the command-line or from another CMake project, such as `-DCMAKE_C_FLAGS= -DCMAKE_CXX_FLAGS=`, caused a link failure as ESP CMake was unable to set its proper compilation flags. Additional CMake compiler flags can now be provided by another project. * Closes https://github.com/espressif/esp-idf/issues/7507
14 lines
543 B
CMake
14 lines
543 B
CMake
set(CMAKE_SYSTEM_NAME Generic)
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set(CMAKE_C_COMPILER riscv32-esp-elf-gcc)
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set(CMAKE_CXX_COMPILER riscv32-esp-elf-g++)
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set(CMAKE_ASM_COMPILER riscv32-esp-elf-gcc)
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list(APPEND compile_options "-march=rv32imc")
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# Option `--specs` must only be defined ONCE in the final linker command, else GCC will complain:
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# "attempt to rename spec 'link_gcc_c_sequence' to already defined spec 'nosys_link_gcc_c_sequence'"
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# so unset `link_options` first.
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unset(link_options)
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list(APPEND link_options "-nostartfiles" "-march=rv32imc" "--specs=nosys.specs")
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