Oleg Khaschansky wrote:
Sun's Java seem to be bundling some libraries with itself like libzip
and libjpeg. But the rest of the libraries like X11, ALSA, probably
other are taken from the system.
As far as I know, RI uses dlopen approach, at least in some cases,
see, e.g. [1].
This means that we
should either bundle in all the required libraries, or use dynamic
linking with the libraries installed in the system.
Bundling in X11 and mesa? :)
No, Sun links against X11 and ALSA and doesn't use dlopen. It doesn't
seem to be a problem for anyone. Why can't we?
Isn't dlopen/dlsym approach a dynamic linking?
It is dynamic linking. I just don't like it that we have to *guess* the
library name. It should be as few such cases as possible. Or we'll get
the bug reports like in your URL.
Again, some API could be missing in some systems (opengl extensions,
for example), what would you suggest to do in this case?
I think that distribution integrators may just add opengl package as a
dependency to harmony package, so it will be installed if harmony is
installed.
[1] http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5011992
On 11/29/06, Gregory Shimansky <[EMAIL PROTECTED]> wrote:
Oleg Khaschansky wrote:
> I think we should fix this problem for all libraries loaded with
> dlopen on linux (i.e. for all autogenerated linux native wrappers). As
> far as I recall, this problem already appeared for liblcms and libXmu.
> I'd suggest to wait until we know if we'll have a generator of native
> wrappers in harmony and, probably, fix it instead of making temporary
> fixes in the autogenerated code.
Sun's Java seem to be bundling some libraries with itself like libzip
and libjpeg. But the rest of the libraries like X11, ALSA, probably
other are taken from the system.
I don't think that replacing dynamic linker on the system with out
heuristics is the "right way". It is ld.so which should decide which
library from the system should be linked with, be it
/usr/lib/libXext.so.6 or /usr/lib/libasound.so.2. This means that we
should either bundle in all the required libraries, or use dynamic
linking with the libraries installed in the system.
It doesn't seem to be a problem for anyone who uses Sun Java on a server
that it is necessary to install X11 and ALSA libraries. On most Linux
distributions it happens automatically using package dependencies. So I
am -1 for this approach. Instead I think the wrappers should be changed
to link against X11 dynamic libs directly.
--
Gregory
