Hi Bob, * Bob Friesenhahn wrote on Thu, Feb 02, 2006 at 05:39:02AM CET: > On Wed, 1 Feb 2006, Albert Chin wrote: > >> > >>Good. GCC uses -B to mean something else. So -Bstatic is a > >>linker-only option. It is likely useful to use something new which > >>won't be confusing due the different meaning between GCC and ld.
True. > >How about -static-only and -shared-only? Hmm. If we were to invent new flags, I currently like -force-static, -prefer-shared best. > >Note though that Ralf has -Bstatic defined as: > > If @var{output-file} is a program, prefer linking statically > > ^^^^^^ > > > >This is not -Bstatic under Linux according to ld(1). If this is what > >is intended, then -prefer-static is back :) This is precisely and only because I wasn't sure whether we would find a linker which allows to set the preferred more but not force it to. And also, because we then need to define the semantics of linking against a libtool library (*.la) that was created shared-only. > There is something else we have not considered. How is all this going > to mesh properly with autoconf configure? This question is *not* new. `-static-libtool-libs' requires thought, even `-static', because it has a different meaning for $CC than for libtool. Look at GCC's libtool-ldflags script which I pointed to in my first post in this thread. We should think about whether: - we add a similar script to the Libtool package, or - detect more option forms in the libtool script itself, e.g.: -Wl,-rpath -Wl,-Bstatic ... > I would love to be able to supply LDFLAGS options to configure and > have them work appropriately within the configure script, and then > work similarly for libtool. Note that `-Wl,-Bstatic' will *not* be useful in LDFLAGS, but LIBS at best, because of the ordering issues. > If the options do not work in LDFLAGS, > then it will be necessary to pass them explicitly via the Makefile. > > In this case > > -Wl,-Bstatic > > may work better even though it is more obtuse. I don't see any reason against supporting both -force-static and -Wl,-Bstatic as two names for the same thing. By the way, I'd like to fix ordering issues for `-Wl,'-given flags that we don't understand, too; there have been several bug reports about this. Cheers, Ralf