Re: using .la or .a when linking an executable ?

[Vincent Torri]

On Mon, 29 Sep 2008, Ralf Wildenhues wrote:

> * Vincent Torri wrote on Mon, Sep 29, 2008 at 09:47:02PM CEST:
> > * Ralf Wildenhues wrote:
> > > * Vincent Torri wrote on Sun, Sep 28, 2008 at 01:04:44PM CEST:
> > >
> > > > 2) If he is right, what should I do to remove those "dependencies" ?
> > > > (flag to pass in a variable in my Makefile.am, or something like that)
> > >
> > > You can pass -Wl,--as-needed when the linker is the GNU binutils one.
> > > But beware that it may break things with some compilers (notably C++
> > > ones), with some apps that do dlopen and expect dependencies to be
> > present, and did not work right in some older versions of ld.
> >
> > Do you have an idea if:
> >
> >  * it works on Windows (mingw binutils) ?
>
> No.  I wouldn't even know that indirect deps work on w32, or whether
> they help there.

Ok, i'll wait for a mingw dev to answer.

> >  * from which version of ld it is safe to use that flag ?
>
> Look at the gnulib module lib-ignore, for a pointer for more
> information, and a macro to use --as-needed when possible.

for posterity: according to NEWS of ld, it as been introduced in binutils 
2.15 (mid 2004)

Vincent