Bug#1004057: evolution-ews: reproducible-builds: build path embedded in libecalbackendews.so and RPATH

[Vagrant Cascadian]

Source: evolution-ews
Severity: normal
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: buildpath
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

Builds in a different source directory trigger reproducibility issues
with libecalbackendews.so and the RPATH of various other binaries also
have different BuildId:

  https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/diffoscope-results/evolution-ews.html

  /usr/lib/evolution-data-server/calendar-backends/libecalbackendews.so

  /build/1st/evolution-ews-3.42.3/src/EWS/calendar
  vs.
  /build/2/evolution-ews-3.42.3/2nd/src/EWS/calendar

The first patch fixes this by removing the source directory from the
CMakeLists.txt that is used to build libecalbackendews.so.

I have not tested that this is a correct fix, per se, but it seems
unlikely that a transient build directory for an installed .deb package
would be present on any end-user system in any useful way.

The second patch fixes this by passing arguments to configure to use a
relative RPATH instead of embedding the full path.


With these patches applied, evolution-ews should build reproducibly on
tests.reproducible-builds.org!


Thanks for maintaining evolution-ews!


live well,
  vagrant
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