Bug#762730: symmetrica: FTBFS: autoreconf: 'configure.ac' or 'configure.in' is required

[Aaron M. Ucko]

Source: symmetrica
Version: 2.0+ds-1
Severity: serious
Justification: fails to build from source (but built successfully in the past)

Automatic builds of symmetrica have been failing:

   debian/rules build-arch
  dh build-arch --with autoreconf --parallel
     dh_testdir -a -O--parallel
     dh_autoreconf -a -O--parallel
  autoreconf: 'configure.ac' or 'configure.in' is required
  dh_autoreconf: autoreconf -f -i returned exit code 1
  make: *** [build-arch] Error 2
  debian/rules:7: recipe for target 'build-arch' failed
  dpkg-buildpackage: error: debian/rules build-arch gave error exit status 2

The problem appears to be that the override_dh_auto_clean target
leaves the tree unpatched, and as such missing configure.ac (which
comes from upstream-autotoolization.patch).  It's not clear that you
need any explicit patch manipulation when using format "3.0 (quilt)",
but if you still do for some reason, please ensure that your patches
are actually in place for the main build* targets.

Thanks!