[buildd-tools-devel] Bug#810871: [sbuild] Please provide a way to set an environment variable to the build directory

[Katsuhiko Nishimra]

Package: sbuild
Version: 0.65.2-1
Severity: wishlist

Hi.

I'm using ccache with cmake-using projects and have encountered a lot of
cache misses.
I figured out the problem is that cmake passes full paths to a compiler,
and that CCACHE_BASEDIR provides a workaround.
However, sbuild creates unpredictably named build directories
and I cannot find a way to set CCACHE_BASEDIR properly.
Could you consider to provide a way to set an environment variable to the current build directory?