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bug#7908: png-1.5 fix for emacs-23.2 and HEAD

From: Andreas Schwab
Subject: bug#7908: png-1.5 fix for emacs-23.2 and HEAD
Date: Sun, 30 Jan 2011 01:00:45 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2.92 (gnu/linux)

Chong Yidong <address@hidden> writes:

> Andreas Schwab <address@hidden> writes:
>>> Aha, I think it makes sense.  Since DEF_IMGLIB_FN defines a return type
>>> of int, whereas fn_png_set_longjmp_fn actually returns a (jmp_buf *), we
>>> do indeed need to perform the extra cast.
>> You can't expect this to work, though.
> Hmm, true.  So maybe something like this instead?

I've checked in a proper fix, though I can't test it.


Andreas Schwab, address@hidden
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