Re: TARGET_ARCH

[Oleksandr Gavenko]

On 2010.05.27 18:09, address@hidden wrote:
> What is TARGET_ARCH typically expected to be set to for cross building with the 
> implicit gmake rules?
>
> The C implicit rule is:
> COMPILE.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
>
> But most hits I see talk about defining TARGET_ARCH to be "arm" or similar.  Of course, 
> doing that makes gcc say "gcc: arm: No such file or directory".
>
> The info pages have nothing to say.
>
> The only reference I saw in the mailing list archives was from 2005, and it 
> advised just not using implicit rules.
 $ info make | grep TARGET_ARCH  || echo nothing found

print nothing found. This is not GNU Make issue.

Under "The GNU Project Build Tools" doc you can find:

`target'
     The canonical configuration name of the target.

`target_cpu'
`target_vendor'
`target_os'
     The first three parts of the canonical target configuration name.

usually this vars joined into triplet:

target=$(target_cpu)-$(target_vendor)-$(target_os)

this like you target_arch.

And these vars used in conditions, not command line switches.

--
С уважением, Александр Гавенко.