[krbdev.mit.edu #7468] SVN Commit

[Tom Yu via RT]

Make sphinx warnings fatal for doc build

We currently do not have any warnings.  Let us keep it that way by
making warnings fatal in maintainer-mode (and configurable on the
buildslaves).  Using sphinx-build -W also causes errors to be reported
in the exit status and picked up by make, which is quite useful.

In order to allow the build bot to use -W but end-users to not use it,
SPHINX_ARGS must be passed on the command line; it cannot be set by
the convenience target 'htmlsrc'.  Document this.

(cherry picked from commit 7b6758a09f92ccc386022bcc86e3a5fea472fdce)

https://github.com/krb5/krb5/commit/c54a33b520afb8d1e7c6c37db15189185f220ada
Author: Ben Kaduk <kaduk at mit.edu>
Committer: Tom Yu <tlyu at mit.edu>
Commit: c54a33b520afb8d1e7c6c37db15189185f220ada
Branch: krb5-1.11
 doc/build_this.rst  |    2 +-
 src/doc/Makefile.in |    5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)