[PATCH 2/2] debian: Add appropriate substitution variables to debian/control

[Daniel Kahn Gillmor]

Without this change, dh_gencontrol emits:

dpkg-gencontrol: warning: package python-notmuch: substitution variable ${python:Provides} unused, but is defined
dpkg-gencontrol: warning: package python-notmuch: substitution variable ${python:Versions} unused, but is defined
dpkg-gencontrol: warning: package notmuch-mutt: substitution variable ${perl:Depends} unused, but is defined

Signed-off-by: Daniel Kahn Gillmor <dkg at fifthhorseman.net>
---
 debian/control | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/debian/control b/debian/control
index 56849500..ff646c6b 100644
--- a/debian/control
+++ b/debian/control
@@ -77,6 +77,8 @@ Package: python-notmuch
 Architecture: all
 Section: python
 Depends: ${misc:Depends}, ${python:Depends}, libnotmuch5 (>= ${source:Version})
+Provides: ${python:Provides}
+XB-Python-Version: ${python:Versions}
 Description: Python interface to the notmuch mail search and index library
  Notmuch is a system for indexing, searching, reading, and tagging
  large collections of email messages in maildir or mh format. It uses
@@ -152,7 +154,8 @@ Depends:
  notmuch (>= 0.4),
  libmail-box-perl, libmailtools-perl,
  libstring-shellquote-perl, libterm-readline-gnu-perl,
- ${misc:Depends}
+ ${misc:Depends},
+ ${perl:Depends},
 Recommends: mutt
 Enhances: notmuch, mutt
 Description: thread-based email index, search and tagging (Mutt interface)
-- 
2.20.1