Fixed boards.txt path in Cosa.mk

[Mogball]

I'm running Cosa withgcc-avr on MacOS and Ubuntu 16.04.

Cosa/build/Cosa.mk

Line 35 in 77616bc

BOARDS_TXT = $(COSA_DIR)/build/boards.txt

But the actual path is $COSA_DIR/boards.txt. This results in no output from running cosa boards and an error when trying to build using cosa [BOARD] (missing device or architecture after '-mmcu=')

#470 seems to be related?

[Mogball]

After looking at some other recent PRs, seems I might've been presumptuous on this one! Will reopen if I figure something out.

[mikaelpatel]

@Mogball

Thanks for your interest in this project. The idea behind the boards.txt is that it is generated from different board contributions. Please see https://github.com/mikaelpatel/Cosa/blob/master/build/Arduino-Makefile/Arduino.mk#L535

[Mogball]

Yeah I did notice that. But it wouldn't work if Arduino IDE is not installed right? If I understand correctly that seems to be what #470 is trying to address.

[mikaelpatel]

@Mogball There is no support for the Arduino IDE to generate the merged boards.txt files. This has to be done manually (unfortunately).

[Mogball]

Alright, that's no problem. I'm looking into developing a build system based around cosa anyway.

Thanks for your responses!