[R-pkg-team] Bug#995302: r-cran-magick: FTBFS with imagemagick 6.9.12.20

[Johannes Schauer Marin Rodrigues]

Hi all,

Quoting Jeroen Ooms (2021-09-29 20:54:17)
> The relevant part of the build log is actually:
> 
> > Package Magick++ was not found in the pkg-config search path.
> > Perhaps you should add the directory containing `Magick++.pc'
> > to the PKG_CONFIG_PATH environment variable
> > No package 'Magick++' found
> > Warning: found GraphicsMagick++ instead of ImageMagick++. GraphicsMagick is not supported.
> 
> You need to build the R package against imagemagick, not graphicsmagick!

ah nice catch! Thank you!

So the problem is, that graphicsmagick is installed because
graphicsmagick-libmagick-dev-compat provides libmagick++-dev and thus satisfies
the build dependencies of r-cran-magick. Since r-cran-magick must not be built
with graphicsmagick, the package should probably add something like:

Build-Conflicts: graphicsmagick-libmagick-dev-compat, libgraphicsmagick1-dev

Thanks!

cheers, josch
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