doc/Makefile: turn warnings into errors
authorHeinrich Schuchardt <xypron.glpk@gmx.de>
Fri, 21 Feb 2020 17:24:03 +0000 (18:24 +0100)
committerTom Rini <trini@konsulko.com>
Tue, 25 Feb 2020 14:06:40 +0000 (09:06 -0500)
commitf3957b69fd1d691c0129d3dd3283169056d3c928
treefd6d2d5270bcc2df0736987aea4c8e73782735c6
parent4eb0fc996c6f188221c278560052d4f58f1f6968
doc/Makefile: turn warnings into errors

Several patches delivered incorrect restructured text as documentation. We
should be able to discover this in Travis CI, Gitlab CI, or Azure CI.

So let us turn all build warnings into errors.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
doc/Makefile