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


From: Eli Zaretskii
Subject: bug#7908: png-1.5 fix for emacs-23.2 and HEAD
Date: Tue, 25 Jan 2011 05:49:53 +0200

> Date: Mon, 24 Jan 2011 22:59:40 +0100
> From: Thomas Klausner <address@hidden>
> Cc: address@hidden
> 
> DEF_IMGLIB_FN (png_set_longjmp_fn);
> ...
> LOAD_IMGLIB_FN (library, png_set_longjmp_fn);
> ...
> #define fn_png_set_longjmp_fn png_set_longjmp_fn
> ...
> setjmp(*png_set_longjmp_fn(png_ptr, longjmp, sizeof(jmp_buf)));
> ...
> 
> and similarly for png_longjmp. Completely untested, just guessed,
> since I haven't tried compiling emacs on MS-Windows before.

This doesn't work, I tried that a few weeks ago, and I still get link
errors.





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