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On Mon, 05 Sep 2011 10:47:33 +0100
Caolán McNamara <caolanm@redhat.com> wrote:

A practical example was libjpeg, iirc the stock libjpeg is always
configured using platform endianness, while our internal one *was*
configured little endian (or the other way around, stock is always
little endian and we configured platform endian). So on solaris if you
used the image preview of the gnome file picker you got reversed
colours in jpegs seeing as the internal jpeg symbols got used and the
gnome dialog was built against the stock system jpeg.

The various workaround aren't consistent so its a bit of a horror show
at the moment anyway. As one aside, we should probably make the macosx
"system" libs the stock baseline for all the unixes at this stage,
i.e. system libxml2/xslt as well as the current system lz, libjpeg
etc.

In the general case though, anyone got any ideas about a less fragile
more universal solution where we could automatically change sonames
and tweak symbol names so that *only* our own libs use/are affected by
symbols in these bundled libs ?

As an aside, for prettyness, it would be nice to have the external
headers and libs always installed in inc/external libs/external and
add -I -L to the compiler/linker to find them. I gave a go at this at
one stage but fell into some trap or other with the odbc headers IIRC

To add fun to this there is a unversioned libjpeg in the libpath you
need for compiling java-releated stuff (deployed from the jdk), which
makes the whole thing even more interesting.

Best,

Bjoern


-- 
https://launchpad.net/~bjoern-michaelsen

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