Mike Frysinger wrote: > On Tuesday 25 August 2009 20:33:25 Anssi Hannula wrote: >> Mike Frysinger wrote: >>> On Tuesday 25 August 2009 18:37:54 Richard Purdie wrote: >>>> On Tue, 2009-08-25 at 20:44 +0200, Ralf Wildenhues wrote: >>>>> * Bob Friesenhahn wrote on Tue, Aug 25, 2009 at 05:17:49PM CEST: >>>>>> On Tue, 25 Aug 2009, Anssi Hannula wrote: >>>>>>> I think the proper way to solve this is to not link to >>>>>>> dependency_libs when linking dynamically on systems where it is not >>>>>>> needed to link to those. I haven't seen any correctly working patches >>>>>>> that implement this. >>>>>> Relying on the OS's implicit dependency features seems to be an >>>>>> approach which is fraught with peril. >>>>> With GNU/Linux, and libraries all being in directories searched by >>>>> default by both the link editor and the runtime linker, the problems >>>>> are fairly limited. IIRC Debian requires that you link directly >>>>> against all libraries that you require directly. >>>>> >>>>> The problems start as soon as you link (directly or indirectly) against >>>>> libraries in directories not searched by default. IOW: typically >>>>> anything not provided by a properly packaged Debian package, installed >>>>> by the user or the system maintainer. >>>> Surely at least on Linux the -rpath linker option would be a much better >>>> way to solve this? >>> a combo of -rpath and -rpath-link ... >> Well, -rpath is already added by libtool when a dependency is not in the >> standard library search path. >> >> AFAICS -rpath-link would be useful if we want to be double-sure that it >> works, e.g. in case RPATH of a library/app has been tampered with. I'm >> not taking a stance on whether -rpath-link should be added or not, though. > > i'm thinking in terms of linker -rpath/-rpath-link, not libtool (i vaguely > recall they're similar but not the same).
So am I. > we want to avoid rpath's being > encoded in binaries for system library paths. Yes, we do. And as I said above, that is what libtool currently does. It adds -rpath (the linker one) automatically, but only for non-system paths. -- Anssi Hannula _______________________________________________ http://lists.gnu.org/mailman/listinfo/libtool
