Make sure imagemagick < 7.0.9

[sebastian-luna-valero]

Checklist

• Used a fork of the feedstock to propose changes
• Bumped the build number (if the version is unchanged)
• Reset the build number to 0 (if the version changed)
• Re-rendered with the latest conda-smithy (Use the phrase @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I wanted to let you know that I linted all conda-recipes in your PR (recipe) and found some lint.

Here's what I've got...

For recipe:

• requirements: host: imagemagick < 7.0.9 should not contain a space between relational operator and the version, i.e. imagemagick <7.0.9
• requirements: run: imagemagick < 7.0.9 should not contain a space between relational operator and the version, i.e. imagemagick <7.0.9

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[sebastian-luna-valero]

@conda-forge-admin, please rerender

[sebastian-luna-valero]

@jcupitt

We are facing the same issues here as in #4

• Linux builds fail with the same error
• OSX builds fail with the make check (testing blankpage.svg svgload ... save / load difference is 80.000000)

While conda-forge/core takes a look at the Linux issue, could you please upload an equivalent 8.8.1a release, please?

Again, the blankpage.svg svgload failed test should be related to a package update, right? Otherwise, it wouldn't have passed the tests when we released 8.8.1...

[jcupitt]

@sebastian-luna-valero OK, I uploaded vips-8.8.1a.tar.gz

Yes, the test failing is because librsvg changed the way they round float pixel coordinates to int.

[sebastian-luna-valero]

Thanks @jcupitt

Do you know by any chance which version librsvg works with the default tests?

Since we are making a new release, I could pin both imagemagick and librsvg for 8.8.1 on this PR.

Or the other way around, do you need to change your tests in libvips to work with the latest librsvg?

[jcupitt]

Yes, 8.9 will have a reworked SVG test that's less sensitive to small offsets like this. For now, it's just disabled.

[sebastian-luna-valero]

While we find out what's the issue with gstreamer-orc, we'll pin it for this release of libvips.