On 15/08/2017 09:30, Markus Armbruster wrote:
> The stupid fix is to repeat libraries until the link succeeds:
>
> test-util-obj-y = libqemuutil.a libqemustub.a libqemuutil.a
>
> You may have seen this with -lX11 if you're old enough.
>
> ld(1) suggests the linker can do it for us:
>
> -( archives -)
> --start-group archives --end-group
> The archives should be a list of archive files. They may be either
> explicit file names, or -l options.
>
> The specified archives are searched repeatedly until no new
> undefined references are created. Normally, an archive is searched
> only once in the order that it is specified on the command line.
> If a symbol in that archive is needed to resolve an undefined
> symbol referred to by an object in an archive that appears later on
> the command line, the linker would not be able to resolve that
> reference. By grouping the archives, they all be searched
> repeatedly until all possible references are resolved.
>
> Using this option has a significant performance cost. It is best
> to use it only when there are unavoidable circular references
> between two or more archives.
>
> Sticking '-Wp,-(' and '-Wp,-)' into the command line I get from make V=1
> doesn't work for me, though.
>
> The smart solution is not to have .a reference each other.
Nah, I think we should teach those new kids on the block about -lX11
instead. :)
> Paolo, what do you think?
Another possibility is to just merge the two static libraries into one.
Paolo
