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Date: Fri, 14 Dec 2012 11:07:34 +0100
From: Michael Olbrich <m.olbrich@pengutronix.de>
Message-ID: <20121214100734.GF32091@pengutronix.de>
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Subject: Re: [ptxdist] Linker problem: libpng-1.2.50, ptxdist-2012.12.0,
 and new atom toolchain i686-atom-linux
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On Fri, Dec 14, 2012 at 09:48:54AM +0000, Schenk, Gavin wrote:
> i686-atom-linux-gnu-cpp -DPNG_CONFIGURE_LIBPNG   -DPNG_BUILDSYMS ./png.h | \
>                 /opt/ptxdist/lib/ptxdist-2012.12.0/bin/sed -n -e \
>                 's|^.*PNG_FUNCTION_EXPORT[      ]*\(['_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789']*\).*$|\1|p' \
>                 -e 's|^.*PNG_DATA_EXPORT[       ]*\(['_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789']*\).*$|\1|p' \
>                         >libpng.sym.new

The libpng.sym is generated here. Please run:
$ ptxdist clean libpng
$ ptxdist -v compile libpng

Now look at the logfile. There should be a line like this:

wrapper: i686-atom-linux-gnu-cpp [...] -DPNG_CONFIGURE_LIBPNG   -DPNG_BUILDSYMS ./png.h

That's the actual command line that is called. Try to run this manually in
build-target/libpng-1.2.50/:
$ ../../selected_toolchain/i686-atom-linux-gnu-cpp [...]

Do you get some reasonable output here?

Michael

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