This bug was fixed in the package kannel - 1.4.5-3ubuntu1
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kannel (1.4.5-3ubuntu1) eoan; urgency=medium
* Disable PostScript documentation generation to fix the build now
that ImageMagick PostScript conversion is no longer permitted
(LP: #1838425).
* Drop
There was some discussion here on #ubuntu-hardened, pasted below.
Conclusion: we should resolve this by disabling PostScript documentation
for now.
14:34 mdeslaur: your security upload of imagemagick
(8:6.9.10.23+dfsg-2.1ubuntu3) is causing kannel to FTBFS when it builds
Arch: all (so amd64)
