[Gnash-dev] Re: [Gnash-commit] /srv/bzr/gnash/trunk r12329: Code cleanups, drop unused variables and functions.

[Benjamin Wolsey]

Am Freitag, den 23.07.2010, 19:24 +0200 schrieb Andrea Palmatè:
> Il giorno 23/lug/2010, alle ore 19.19, Benjamin Wolsey ha scritto:
> 
> > 
> > 
> > Does that mean it's declared in an included header but not defined?
> > 
> it doesn't seems defined at all. i've seen also in the include file. i don't 
> have neither the PNG_LIBPNG_VER_MINOR define and so it was working in the past
> i'm using the png lib 1.2.13 but that function is not present

I don't really understand; if it's not declared it wouldn't compile. An
undefined reference surely means the declaration is somewhere, but not
the definition.

The function in question, png_set_expand_gray_1_2_4_to_8(), was added in
1.2.9 according to what I can find on the internet.

But if yours is different and also really has no PNG_LIBPNG_VER_MINOR,
then the test should be whether that's defined, whether
PNG_LIBPNG_VER_MAJOR is more than 1, or is equal to 1 and
PNG_LIBPNG_VER_MINOR is more than or equal to 3 (to be on the safe
side). Does that sound correct?

bwy


--
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Benjamin Wolsey, Software Developer - http://benjaminwolsey.de
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