svn commit: r292723 - in head: lib/libc share/mk

Daniel Eischen deischen at freebsd.org
Fri Dec 25 21:03:24 UTC 2015


On Fri, 25 Dec 2015, Ed Schouten wrote:

> Hi Colin,
>
> First of all: I Am Not A Linker Expert.
>
> 2015-12-25 12:29 GMT+01:00 Colin Percival <cperciva at freebsd.org>:
>>   Make libxnet.so a symlink to libc.so.  This makes `-lxnet` a no-op, as
>>   POSIX requires for the c99 compiler.
>
> I seem to remember I had some issues in the past where I was linking
> against libc explicitly. Maybe it had something to do with linking
> both against -lpthread and -lc, but if you pass in -lc later on the
> command line, libc overrides the symbols that have to be provided by
> -lpthread?
>
> If that's (still) the case, would it make sense to just provide
> libxnet in the form of an empty .a file instead?

I think that's a good point.  Using -lanything shouldn't introduce an
unexpected link order.

-- 
DE


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