/usr/src -> make doesn't recognize target when '-f -' is used

[Garrett Cooper]

On Sep 27, 2011, at 2:31 AM, rank1seeker at gmail.com wrote:

> cd /usr/src
> 
> This works:
> --
> # echo 'CPUTYPE?=core2
> CFLAGS+=-march=native
> NO_CPU_CFLAGS=yes
> COPTFLAGS+=-march=native
> NO_CPU_COPTFLAGS=yes' | /usr/bin/make __MAKE_CONF=/dev/null -f - -V CPUTYPE
> --
> 
> This DOESN'T:
> --
> # echo 'CPUTYPE?=core2
> CFLAGS+=-march=native
> NO_CPU_CFLAGS=yes
> COPTFLAGS+=-march=native
> NO_CPU_COPTFLAGS=yes' | /usr/bin/make __MAKE_CONF=/dev/null -f - -j4 buildworld
> 
> make: don't know how to make buildworld. Stop
>    (Yes, in /usr/src)
> --
> 
> When '-f -' is removed, build will start?
> Is this a bug or I simply don't see, an obvious thing?

How are you invoking the build exactly in each case?
Thanks,
-Garrett