user-guide: Add since annotation for -Wcpp-undef
authorErik de Castro Lopo <erikd@mega-nerd.com>
Sat, 27 May 2017 04:54:42 +0000 (14:54 +1000)
committerErik de Castro Lopo <erikd@mega-nerd.com>
Sat, 27 May 2017 04:54:43 +0000 (14:54 +1000)
commit52fe138ef7fb23554c7af996a0aa1f641082d275
treecc12170749ed2987ce3c1e98eaf5531e08d7b545
parent27f6f388ef1a3cd694008150fe513e3e7be2e6ad
user-guide: Add since annotation for -Wcpp-undef

Reviewers: hvr, bgamari, austin

Reviewed By: hvr

Subscribers: rwbarton, thomie

Differential Revision: https://phabricator.haskell.org/D3612
docs/users_guide/using-warnings.rst