Comment 5 for bug 1949605

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Simon Iremonger (ubuntu-iremonger) wrote :

For what its' worth, the Focal system's provided packages do not meet the following build-deps of the *debian* Thunderbird 91.3.0 package;-

cbindgen (>= 0.19)
debhelper-compat (= 13)
libnspr4-dev (>= 2:4.32~)
libnss3-dev (>= 2:3.68~)
nodejs (>= 10.19.0)

Merely overriding the version dependencies in debian control file [which can just automatically referring to latest version needlessly] is not sufficient, an internal check *actually* requires e.g. nspr >=4.32 . These packages may need backporting or whatever, or the ubuntu packages may work differently to get around these limitations for building (in any case build-deps and runtime-deps may be another matter...).