Don't call alex for Cabal lib during GHC build
authorTobias Dammers <tdammers@gmail.com>
Mon, 27 Nov 2017 19:00:50 +0000 (14:00 -0500)
committerBen Gamari <ben@smart-cactus.org>
Tue, 28 Nov 2017 01:28:37 +0000 (20:28 -0500)
commiteb86e867694bceedfb47a527d71429197ffe6dda
treea79e36ac2477327d70c4cdc801583f0ef10819ce
parentdf1a0c0c62b6433b2b4584a133a6d92491b71e08
Don't call alex for Cabal lib during GHC build

The Cabal library now commits `Lexer.hs` directly to the source tree,
so the build step where we'd call alex ourselves to generate that file
is no longer necessary, nor will it work.

See also: https://ghc.haskell.org/trac/ghc/ticket/14459

Reviewers: bgamari, hvr

Reviewed By: bgamari

Subscribers: rwbarton, thomie, carter

GHC Trac Issues: #14459

Differential Revision: https://phabricator.haskell.org/D4240
ghc.mk