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Topic: Re: Seg fault when linking libAGM.so
Conf: (P-PDF) Developers, Msg: 58469
From: LeonardR
Date: 5/29/2002 05:32 PM

At 07:11 AM 9/21/2001 +1000, p-pdf-developer Listmanager wrote:
>I'm in the middle of a mission-critical app and need some expertise. I've
>got a very large and high quality C++ application that now needs to use
>Adobe's PDFL to open/read/modify/save .pdf files.

If you are using Adobe's PDFLibrary, then you have a license for
it and therefore also support via their partner's program. (oh, and
congratulations on getting the license, they are VERY hard to come by!).


> While everything works fine most of the time, any time I run across a
> problem which is dealt with via standard C++ try/throw/catch semantics,
> the application throws a seg-fault and dumps core.

That's not good...


>I tracked it down to something weird in libAGM.so.

libAGM is only used by the rasterizer, so you may not need it if
you are just modifying PDF's.


>If you link this to libAGM.so, it crashes on the throw. If you don't link
>it, it works fine.

Interesting...



>Here's the important stuff:
>libAGM.so.3.0
>gcc version 2.96 20000731 (Red Hat Linux 7.0)

I suspect the problem is related to different compiler/stdlib
versions - in which case you will need back out to whatever Adobe used.



>Please, tell me there's a solution?

Switch to a PDF library that is compatible with that compiler and
platform - and is also thread safe, doesn't leak memory and is MUCH faster
than Adobe's....

I recommend SPDF from Appligent (http://www.appligent.com) since
it uses the same API's as Adobe's library therefore letting you simply
"drop in" one library instead of the other and just recompile/link.


Leonard

----------------------------------------------------------------------------------
Leonard Rosenthol
Director of Software Development (215) 922-3509 (voice)
Appligent, Inc. (formerly Digital Applications) (610) 284-4233 (fax)

PGP Fingerprint: 8CC9 8878 921E C627 0BC1 15BB FC19 64A9 0016 1397


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