Makefile parser error: syntax error, unexpected SLIT

[tritao]

../nuttx/arch/avr/src/avr/Toolchain.defs:92:11: parse error: syntax error, unexpected SLIT
Failed to parse: ../nuttx/arch/avr/src/avr/Toolchain.defs

Points to this:

  $(error "No valid CONFIG_ARCH_CHIP_ set in the configuration")

Full file: https://gist.github.com/tritao/352281e9dee9d8832c51772378b92102

I get the same reported error message for this as well:

LIBGCC = ${shell "$(CC)" $(ARCHCPUFLAGS) -print-libgcc-file-name}

Probably the same issue.

Another instance:

  CUSTOM_DIR = $(patsubst "%",%,$(CONFIG_ARCH_BOARD_CUSTOM_DIR))

[xaizek]

Thanks.