commit 5f98cdb8c7235ee937618149d618a73e9adc67f6
author Alexey Serbin <aserbin@cloudera.com> Fri Aug 05 19:34:18 2016 -0700
committer Todd Lipcon <todd@apache.org> Mon Aug 08 18:36:23 2016 +0000
tree 091cdac66b07a3e5f0e55e2a772e4f677dbdd405
parent 647f904b5d59a1342bd777a07c04245c590b7201

[CMakeLists.txt] dot is mandatory for doxygen

Require dot (graphviz) support for doxygen since the dot is needed
when generating Kudu C++ client API documentation.

This addresses the following JIRA issue(s):
  KUDU-1543: doxygen: graphviz dependency not documented

Change-Id: I3466a587f98a528d9aa57edd4f4e96684b6922a2
Reviewed-on: http://gerrit.cloudera.org:8080/3855
Tested-by: Kudu Jenkins
Reviewed-by: Todd Lipcon <todd@apache.org>