On 11/12/2010 2:03 PM, Adrian Cornish wrote:
> As far as I can determine all that matters is that -lmysqlpp_ssqls2parse
> comes before -Wl,--as-needed.
If true, that's a screwy way for the GNU linker to implement that feature.
I assume Gentoo is adding this flag by diddling autoconf somehow, so it
can inject this option into LDFLAGS. There's no easy way that code can
figure out that some -l flags refer to static helper libraries and
others to dynamic ones, so it has to do something simple like prepend it
We *could* fix it in MySQL++ by doing without helper libraries entirely,
rebuilding all the ssqls2parse modules separately for each program that
used them so they just appear among *.o for that program's link command.
That's quite inefficient, however.
Andrew, you say Gentoo would reject a patch that removed --as-needed for
MySQL++. Unless there are serious penalties for doing that, I don't see
why. This sounds like a small tweak, a nice thing to have for programs
that cope with it, but not something worth fighting over.
If you're right and they do reject such a patch, you could instead offer
a patch that manually reorders the LDFLAGS=foo... line in the Makefile
after the "configure" step. That's more work for you, but there should
be no way to argue against that.
Regardless, I retract my suggestion that we involve the Bakefile
maintainer in this. His code is doing the right thing already.