[Debian-zh-dev] Bug#975045: galternatives fails to build for binnmu

[Sven Mueller]

Package: galternatives
Version: 1.0.7
Tags: patch

debian/rules compares the version from debian/changelog with the version
reported by the INFO dict. However, this fails if a binnmu is at play:

A binnmu adds a changelog entry with +bX (X being an integer), but
generally speaking, rebuilds might add almost any +<whatever> suffixes.

I suggest to change debian/rules as follows to allow for binnmus:

Add:

BASE_VERSION=$(shell dpkg-parsechangelog \
      sed -rne 's/^Version: ([0-9.]+)(\+.*)?/\1/p')

And compare to that instead of DEB_VERSION_UPSTREAM

This is similar to what is done for DEB_VERSION_UPSTREAM in pkg-info.mk,
but acknowledges the fact that galternatives is a native Debian package and
thus the whole version from the changelog is recognized as the upstream
version.

For 1.2-1+b1, DEB_VERSION_UPSTREAM would have 1.2, as it strips the last -
and everything after it.

Patch attached, this time I'll refrain from submitting anything to salsa...
I caused too much chaos with the previous commits already (I hope I cleaned
it up though).
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