Ralf Wildenhues <ralf.wildenh...@gmx.de> writes:
> * Rainer Orth wrote on Wed, Nov 17, 2010 at 09:15:55PM CET:
>>
>> * One cannot -lm to libquadmath_la_LIBADD since that gets passed to nm,
>> which doesn't know (and doesn't need to be run) -lm.
>
> That's a bug in the rule using nm then, though.
I'm not completely sure about this. One might skip such arguments in
the contrib/make_sunver.pl script, though.
>> Again, as in
>> libjava/Makefile.am, I've moved it to libquadmath_la_LDFLAGS instead.
>
> Using *_LDFLAGS for -l flags is wrong though because it might mess up
> the ordering of libraries, at least for static linking. You might get
> away with this here because -lm is probably added from some other bit as
> well, but in general that is not a good idea.
As I've mentioned in the submission of the patch that added
Solaris-style symbol versioning to libjava
[build, libjava] Support Sun symbol versioning in libjava
http://gcc.gnu.org/ml/gcc-patches/2010-07/msg00073.html
the Automake manual can be read otherwise: ch. 8.3.7 `_LIBADD',
`_LDFLAGS', and `_LIBTOOLFLAGS' states:
As shown in previous sections, the `LIBRARY_LIBADD' variable should be
used to list extra libtool objects (`.lo' files) or libtool libraries
(`.la') to add to LIBRARY.
The `LIBRARY_LDFLAGS' variable is the place to list additional
libtool linking flags, such as `-version-info', `-static', and a lot
more. *Note Link mode: (libtool)Link mode.
There's nothing about external libraries specified with just -l<lib> in
the first sentence about _LIBADD.
As I said, I could be persuaded to change this, but right now my primary
interest is to get Solaris back to bootstrap land ASAP, and with less
than 13000 testsuite failures ;-(
Rainer
--
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University
