Bug#1069685: haskell-language-c-quote: Missing build dependency on alex

[Adrian Bunk]

Source: haskell-language-c-quote
Version: 0.13.0.1-1
Severity: serious
Tags: ftbfs
X-Debbugs-Cc: Debian Haskell Group <pkg-haskell-maintainers at lists.alioth.debian.org>, Kari Pahula <kaol at debian.org>

https://buildd.debian.org/status/logs.php?pkg=haskell-language-c-quote&ver=0.13.0.1-1

...
Error: hlibrary.setup: The program 'alex' version >=3 is required but it could
not be found.
...