On Sat, Jan 30, 1999 at 10:40:33PM -0600, Gordon Matzigkeit wrote: > There's been so much traffic on this thread, that I suspect most > people have missed the fact that Ian Lance Taylor has analyzed and > *solved* the problems with interaction between libtool and > libc5-compat shared libraries. > > I'm quoting and reposting his message so that it doesn't get lost in > the shuffle. Please read and understand this message before posting > more flameage.
I am the Debian and upstream maintainer of the libc5 ld.so. Ian's patch will not be going in. IMO, -rpath should not be used for any libraries installed in standard, system locations (i.e. any place listed in /etc/ld.so.conf). -rpath should only be used when libraries are installed in nonstandard locations. FWIW, I cringed the first time I saw what RedHat had done. They did not foresee the evils of -rpath and the problems it would cause in the libc5/libc6 transition. David > >>>>> Ian Lance Taylor writes: > > ILT> I just spent some time looking at the ld.so sources. > ILT> Interestingly, it seems to me that everything will work > ILT> correctly in the sources I was looking at. That is because the > ILT> libc5 dynamic linker on my system (RedHat 5.2) was modified to > ILT> search the library cache before using the application's > ILT> DT_RPATH. > > ILT> I think that is a hack that Debian is missing: it is the final > ILT> hack to the libc5 dynamic linker to change the search path to > ILT> account for the moved shared libraries even when rpath is used. > ILT> I have appended the RedHat patch below. This is to ld.so-1.9.5. > ILT> Of course, this will technically break the handling of DT_RPATH. > ILT> However, we've already determined that DT_RPATH binaries will > ILT> not work correctly anyhow, because the shared libraries were > ILT> moved. So using this patch should not make us any worse off. > > [...] > > ILT> Although I can not test this, I now believe that if you take a > ILT> libtool program, compile it on a libc5 Slackware and try to run > ILT> it on a RedHat 5.2 system, it will work. > > His patch follows... -- David Engel [EMAIL PROTECTED]
