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Re: [Gnash-dev] build error [png/avcodec?]

From: Benjamin Wolsey
Subject: Re: [Gnash-dev] build error [png/avcodec?]
Date: Thu, 14 Oct 2010 08:54:45 +0200

> But, Error occurs like below.
>   CXX    libgnashbase_la-GnashImagePng.lo
> GnashImagePng.cpp: In member function `virtual void 
> gnash::PngImageInput::read()':
> GnashImagePng.cpp:162: error: `png_set_expand_gray_1_2_4_to_8' undeclared 
> (first use this function)

png 1.2.7 is 6 years old and buggy! The function was called
png_set_gray_1_2_4_to_8 back then.

We should require a particular libpng version in configure.

>   CXXLD  sdl-gnash
> ../libmedia/.libs/ undefined reference to 
> `boost::detail::get_current_thread_data()'
> ../libmedia/.libs/ undefined reference to `typeinfo for 
> boost::detail::thread_data_base'
> ../libmedia/.libs/ undefined reference to 
> `av_image_fill_linesizes'

I see libavcodec and libboostthread are the two libraries you've put in
another place. 

make V=1 will show you the actual compiler and linker commands instead
of "CXXLD", which might help you to check why those libraries aren't
being linked correctly.


The current release of Gnash is 0.8.8

Benjamin Wolsey, Software Developer -
C++ and Open-Source Flash blog -


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