Re: Patch: RFC: make libltdl search for version-specific symlinks first

[Michael Koch <konqueror at gmx dot de>]

Am Montag, 23. August 2004 19:10 schrieb Thomas Fitzsimmons:
> Hi,
>
> This patch makes libltdl search for a version-specific DSO before
> searching for the corresponding versionless DSO.  This will allow
> multiple ABI-incompatible versions of libgcj to be installed in
> parallel in the same prefix.  Currently, this isn't possible
> because libltdl finds only the versionless .so symlink, so only the
> most
> recently-installed libgcj will find the correct version of the peer
> library.
>
> Currently, libltdl searches for the peer library like this: first
> it looks for lib-gnu-java-awt-peer-gtk.la.  Failing that, it looks
> for lib-gnu-java-awt-peer-gtk.so.  This patch adds an intermediate
> search for lib-gnu-java-awt-peer-gtk.so.n, where n is the ABI
> version number.
>
> Comments?

I talked with Matthias Klose about this patch privately and we now 
think this patch is bit of wrong. I searches the *.la file before the 
*.so.version file but the *.so.version is hardcoded in the *.la file. 
So if an app is compiled again *.so.version and *.la points to 
*.so.version+1 it loads the wrong library.

The solution would be to try to load the *.so.version before trying 
the *.la file.


Michael