Re: Linker problems: dependencies with .a file not resolved?

["Christian Convey" <christian dot convey at gmail dot com>]

On 27 Feb 2007 21:11:26 -0800, Ian Lance Taylor <iant@google.com> wrote:
> "Christian Convey" <christian.convey@gmail.com> writes:
>
> > ImageReader.cpp:(.text+0x90): undefined reference to
> > `uriVideoSources::ImageReader_gen::getFrame_(bool,
> > uriBase::RasterImage*)'
> >
> > (there are more errors as well, but I figured this was enough to make my point).
> >
> > I thought that perhaps the supposedly missing function wasn't in the
> > .a file, so I check with nm as follows:
> >
> > cjc@peace:~$ nm --demangle
> > /home/cjc/csc583-svn/uriVisionLib/trunk/Development/Source/C++/liburiVision.a
> > | grep outputFrame
> > 0000002c T uriMovieEditing::ImageWriter::outputFrame(uriBase::RasterImage*)
> > 00000000 T uriMovieEditing::ImageWriter::outputFrame(uriBase::RasterImage*,
> > bool)
> >          U uriMovieEditing::ImageWriter_gen::outputFrame_(uriBase::RasterImage*,
> > bool)
>
> The error above refers to
>     uriVideoSources::ImageReader_gen::getFrame_(bool, uriBase::RasterImage*)
> You didn't show whether the library defines that symbol or not.
>
> Ian

Sorry, I re-typed the operation to have output for my email and
goofed.  But the symbol really does appear to be in the archive:

cjc@peace:~$ nm --demangle
/home/cjc/csc583-svn/uriVisionLib/trunk/Development/Source/C++/liburiVision.a
| grep "uriVideoSources::ImageReader_gen::getFrame"
        U uriVideoSources::ImageReader_gen::getFrame_(bool)
        U uriVideoSources::ImageReader_gen::getFrame_(bool,
uriBase::RasterImage*)