On Sun, 06 Nov 2011 17:56:40 +0200, VS (Ville) wrote:
> > Puzzles me. The F-16 build doesn't depend on libpng* directly:
> >
> > $ rpm -qR geeqie|grep png
> > $ rpm -q geeqie
> > geeqie-1.0-13.fc16.x86_64
>
> I noticed a similar thing with gkrellm-volume -- the F-15 build did have
> a dependency on it, but the F-16 one didn't (libm was similarly gone,
> maybe some others too). I suppose some pkg-config files of the build
> dependency chain no longer had those in pkg-config --libs output on F-16
> but did on F-15.
At least -lpng12 is gone in several build logs.
> Anyway, applying -Wl,--as-needed on a new Rawhide gkrellm-volume build
> still got rid of quite a few additional unnecessary deps even though it
> would no longer have been necessary in order to get rid of the libpng one.
Two findings after I tested a bit on Sunday:
* Some programs insert LDFLAGS after LIBS. This works for appending
libraries from within the spec file (such as -lm), but linker options
like --as-needed only affect libraries following it.
* The %configure macro (at least since F-16) does
LDFLAGS="${LDFLAGS:--Wl,-z,relro }"; export LDFLAGS;
so one cannot simply export a customized $LDFLAGS in the spec file
without disturbing the macro.
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