lm32_ss = ss.source_set() # LM32 boards lm32_ss.add(when: 'CONFIG_LM32_EVR', if_true: files('lm32_boards.c')) lm32_ss.add(when: 'CONFIG_MILKYMIST', if_true: files('milkymist.c')) hw_arch += {'lm32': lm32_ss}