Re: [PATCH] selftests: gpio: fix Makefile

[Michael Ellerman]

Fathi Boudra <fathi.boudra@xxxxxxxxxx> writes:
> diff --git a/tools/testing/selftests/gpio/Makefile b/tools/testing/selftests/gpio/Makefile
> index 205e4d10e085..714f1f7df04d 100644
> --- a/tools/testing/selftests/gpio/Makefile
> +++ b/tools/testing/selftests/gpio/Makefile
> @@ -1,23 +1,24 @@
> +CFLAGS += -O2 -g -std=gnu99 -Wall
> +CFLAGS += -I../../../../include/uapi/ -I../../../../include/

Those are kernel headers, they *might* work in userspace but they're not
designed to.

Use the exported headers:

CFLAGS += -I../../../../usr/include


If they're not there, then the user can install them, or fall back to
the system headers.

> +CFLAGS += $(shell pkg-config --cflags mount)
> +LDLIBS += $(shell pkg-config --libs mount)

What if pkg-config isn't installed?

cheers