Added a test if there are SO commands.

[fike]

I reinstalled OS on my laptop and I didn't install all programas (curl). I did a simple test in firmware/Makefile if there aren' t curl, cpio or zxcat, show a message and exit.

    @echo "Checking dependencies for driver download..."
    **@if [ 3 != "$(which curl cpio xzcat| wc -l)" ]; then echo -e "Missing commands, please check if your OS has curl, cpio and xzcat.\n" && exit 1; fi**
    @echo ""

[patjak]

This fails for me even though I have curl, cpio and xzcat installed. Also is Yoda style evaluations enforced by bash or is the force just weak with that one?

[seumasmac]

Might be cleaner as:

@for required in curl cpio xzcat; do if which $required > /dev/null; then echo "Found $required"; else echo "Missing $required. Exiting."; exit 1; fi; done

[fike]

So, I have to agree this a little bit obfuscate. Perhaps a just additional instead use for or if.

My suggestion is:

@echo "Checking dependencies (curl, xzcat, cpio) for driver download..."

Indirectly they will know missing something. What do you think, @patjak .