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BNFC / bnfc

BNF Converter
http://bnfc.digitalgrammars.com/
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Dependency tree exhaustively searched when `cabal install --only-dependencies --enable-tests` in sandbox #154

Closed archywillhe closed 9 years ago

archywillhe commented 9 years ago

I init a cabal sandbox in /testing, but i encountered the following problem with cabal install --only-dependencies --enable-tests

Resolving dependencies...
cabal: Could not resolve dependencies:
trying: bnfc-system-tests-0.1.0.0 (user goal)
next goal: base (dependency of bnfc-system-tests-0.1.0.0)
rejecting: base-4.8.0.0/installed-901... (conflict: bnfc-system-tests =>
base>=4.5 && <4.8)
rejecting: base-4.8.0.0, 4.7.0.2, 4.7.0.1, 4.7.0.0, 4.6.0.1, 4.6.0.0, 4.5.1.0,
4.5.0.0, 4.4.1.0, 4.4.0.0, 4.3.1.0, 4.3.0.0, 4.2.0.2, 4.2.0.1, 4.2.0.0,
4.1.0.0, 4.0.0.0, 3.0.3.2, 3.0.3.1 (global constraint requires installed
instance)
Dependency tree exhaustively searched.
archywillhe commented 9 years ago

I am pretty new to Haskell. After some read up I learnt that it was because I have a base-4.8 while bnfc-system-tests base>=4.5 && <4.8. My ghc is version 7.10.1. Looks like I would need to figure out how to run an older version of ghc for this.

archywillhe commented 9 years ago

It turns out we can cabal build with an older version of ghc by simply 

cabal install -w ghc-7.8.4

where ghc-7.8.4 is in path.

(as suggested by Daniel Wagner on stackoverflow)

gdetrez commented 9 years ago

Yes, I should update the dependencies. In the mean time, you can simply try to change the cabal file to allow base 4.8 (and then report whether or not it works here as I'd be interested ;-))

Note that the system tests assume that you have a lot of tools available on your machine (gcc, lex yacc, ocamlc, ocamllex, ocamlyacc, javac...)

archywillhe commented 9 years ago

alright; I just gave it a go, and immediately ran into this:

Resolving dependencies...
cabal: Could not resolve dependencies:
trying: bnfc-system-tests-0.1.0.0 (user goal)
trying: HTF-0.13.1.0 (dependency of bnfc-system-tests-0.1.0.0)
trying: unix-2.7.1.0/installed-457... (dependency of HTF-0.13.1.0)
next goal: shelly (dependency of bnfc-system-tests-0.1.0.0)
rejecting: shelly-1.6.3.3, 1.6.3.2, 1.6.3.1, 1.6.3, 1.6.2.5, 1.6.2.4, 1.6.2.3,
1.6.2.2, 1.6.2.1, 1.6.2, 1.6.1.2, 1.6.1.1, 1.6.1, 1.6.0.1, 1.6.0, 1.5.7
(conflict: bnfc-system-tests => shelly==1.5.6)
rejecting: shelly-1.5.6 (conflict: unix => time==1.5.0.1/installed-30e...,
shelly => time>=1.3 && <1.5)
rejecting: shelly-1.5.5, 1.5.4.1, 1.5.4, 1.5.3.2, 1.5.3.1, 1.5.2, 1.5.1.1,
1.5.1, 1.5.0.1, 1.4.4.2, 1.4.4.1, 1.4.4, 1.4.3.1, 1.4.3, 1.4.2, 1.4.1,
1.4.0.2, 1.4.0.1, 1.3.2, 1.3.1, 1.3.0.7, 1.3.0.6, 1.3.0.5, 1.3.0.4, 1.3.0.3,
1.3.0.2, 1.3.0.1, 1.3.0.0, 1.2.0.0, 1.1.0.0, 1.0.0.0, 0.15.4.1, 0.15.4,
0.15.3.3, 0.15.3.2, 0.15.3.1, 0.15.3, 0.15.2, 0.15.1, 0.15.0, 0.14.3,
0.14.2.3, 0.14.2.2, 0.14.2.1, 0.14.2, 0.14.1, 0.14.0.1, 0.14, 0.13.5.1,
0.13.5, 0.13.4, 0.13.3, 0.13.2.1, 0.13.2, 0.13.1, 0.13.0.1, 0.13, 0.12.2,
0.12.1.1, 0.12.1, 0.12.0.2, 0.12.0.1, 0.12, 0.11, 0.10.0.1, 0.10, 0.9.7.3,
0.9.7.2, 0.9.7.1, 0.9.7, 0.9.6, 0.9.5.1, 0.9.5, 0.9.4.2, 0.9.4.1, 0.9.3,
0.9.2, 0.9.0, 0.8.0.2, 0.8.0.1, 0.7.1, 0.7, 0.6, 0.5.1, 0.5.0, 0.4.1, 0.4,
0.3.1, 0.3.0.2, 0.3.0.1, 0.3.0, 1.5.3, 1.5 (conflict: bnfc-system-tests =>
shelly==1.5.6)
Backjump limit reached (change with --max-backjumps).
archywillhe commented 9 years ago

shelly 1.5.6 can't take unix time of 1.5.0.1.