[Pkg-openssl-devel] Bug#623596: Processed: Re: Bug#623596: mumble: Problem with the import certificats

[Thorvald Natvig]

On 24.04.2011 15:00, Kurt Roeckx wrote:

> 
> dlopen will cause problems if you don't use dlvsym() to select the
> right version.  It's very unlikely dlvsym() is used, and it
> probably just uses dlsym() instead.

Indeed. But that should only cause a problem for Qt; the problem here is
that using the PKCS12 functions fails from Mumble, which explicitly
links libssl and libcrypto. So it's the 1.0.0 version, which is linked
"normally", that fails.

> Why doesn't it open the 0.9.8 soname and not the 1.0.0 one?  Is
> that hardcoded or something?

I did some digging in Qt source and found this:
libssl->setFileNameAndVersion(QLatin1String("ssl"),QLatin1String(SHLIB_VERSION_NUMBER));

SHLIB_VERSION_NUMBER is defined by the openssl headers. In other words,
it tries to runtime load the same version is was compiled with. Which
sort of makes sense. However, the code seems to indicate it should fall
back gracefully. It does, in a sense; it happily loads the 1.0.0 version
of the library, but it doesn't work with it :(

I'm guessing a recompile of Qt will fix this. I'll give that a shot and
see if it improves things.