[Long] Re: [Haskell-cafe] Re: Why cabal forces reinstallation of happstack-utils?

Maciej Piechotka uzytkownik2 at gmail.com
Wed May 5 07:18:00 EDT 2010


On Wed, 2010-05-05 at 12:13 +1000, Ivan Miljenovic wrote:
> On 5 May 2010 12:04, Maciej Piechotka <uzytkownik2 at gmail.com> wrote:
> > 1. I downloaded happstack-utile[1]
> > 2. Edited cabal file
> > 3. Installed it successfully linking with parsec 3.1
> > 4. I tried to run cabal install happstack --constraint 'parsec >= 3'
> > 5. It complains that happstack-utile needs to be installed against
> > parsec 2
> 
> > [1] Now it is HStringTemplate but problem is the same
> 
> Did you try editing the HStringTemplate cabal file to remove its
> constraint against parsec >= 3?
> 

Yes. See point 2.

> Also, is there any reason why you're forcing that constraint through
> (yes, upstream should start using parec-3, but why use --constraint to
> try and force it yourself)?
> 

Because it would download and rebuild packages on its own:
% cabal install happstack --dry-run -v
/usr/bin/ghc --numeric-version
looking for package tool: ghc-pkg near compiler in /usr/bin
found package tool in /usr/bin/ghc-pkg
/usr/bin/ghc-pkg --version
/usr/bin/ghc --supported-languages
Reading installed packages...
/usr/bin/ghc-pkg dump --global
/usr/bin/ghc-pkg dump --user
/usr/bin/ghc --print-libdir
Reading available packages...
Resolving dependencies...
selecting happstack-0.5.0 (hackage) and discarding HStringTemplate-0.2,
0.3,
0.3.1, 0.3.2, 0.4, 0.4.1, 0.4.2, happstack-0.2.1, 0.3.1, 0.3.2, 0.4.1,
happstack-data-0.1, 0.2.1, 0.3.1, 0.3.2, 0.3.3, 0.4.1,
happstack-ixset-0.1,
0.2.1, 0.3.1, 0.3.2, 0.4.1, happstack-server-0.1, 0.2.1, 0.3.1, 0.3.2,
0.3.3,
0.4.1, happstack-state-0.1, 0.2.1, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.4.1,
happstack-util-0.1, 0.2.1, 0.3.1, 0.3.2, 0.4.1, harp-0.2.1, hsp-0.2,
0.4,
0.4.4, 0.4.5, 0.5.0, 0.5.1, hsx-0.4, 0.4.4, 0.4.5, 0.4.6, 0.4.8, 0.5.0,
0.5.1,
0.5.2, 0.5.5, 0.5.6, 0.6.0, 0.6.1 and 0.6.2
selecting happstack-data-0.5.0 (hackage) and discarding HaXml-1.19,
1.19.1,
1.19.2, 1.19.3, 1.19.4, 1.19.5, 1.19.6, 1.19.7, 1.20, 1.20.1, 1.20.2,
syb-with-class-0.1, 0.2, 0.3, 0.4, 0.5, 0.5.1, 0.6, text-0.1, 0.2, 0.3,
0.4,
0.5, 0.6, 0.7, 0.7.0.1, time-1.0, 1.1.2.0, 1.1.2.1, 1.1.2.2, 1.1.2.3,
1.1.2.4
and 1.1.3
selecting happstack-server-0.5.0 (hackage) and discarding sendfile-0.1,
0.2,
0.3, 0.3.1, 0.4, 0.5, utf8-string-0.1, 0.2, 0.3, 0.3.1, 0.3.1.1, 0.3.2
and
0.3.3
selecting happstack-state-0.5.0 (hackage)
selecting harp-0.4 (installed or hackage)
selecting hsp-0.5.2 (installed or hackage) and discarding HJScript-0.4,
0.4.4,
0.4.5, 0.4.6, 0.4.7, 0.4.8 and 0.4.9
selecting HJScript-0.5.0 (installed or hackage) and discarding
HJavaScript-0.4, 0.4.4 and 0.4.5
selecting hsx-0.7.0 (installed or hackage) and discarding
haskell-src-exts-0.2.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5, 0.3.7, 0.3.9,
0.3.10,
0.3.11, 0.3.12, 0.4.1, 0.4.2, 0.4.3, 0.4.3.1, 0.4.4, 0.4.4.1, 0.4.5,
0.4.6,
0.4.8, 0.5.2, 0.5.3, 0.5.4, 0.5.5, 0.5.6, 0.5.7, 1.0.0, 1.0.1, 1.1.0,
1.1.1,
1.1.3, 1.1.3.1, 1.1.4, 1.2.0, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5
and
1.4.0
selecting sendfile-0.6.1 (hackage)
selecting syb-with-class-0.6.1 (installed or hackage) and discarding
template-haskell-2.2.0.0, 2.3.0.0 and 2.3.0.1
selecting syb-with-class-instances-text-0.0.1 (installed or hackage)
selecting text-0.7.1.0 (installed or hackage) and discarding
deepseq-1.0.0.0
selecting deepseq-1.1.0.0 (installed or hackage) and discarding
array-0.1.0.0,
containers-0.1.0.0 and 0.1.0.1
selecting ghc-prim-0.2.0.0 (installed)
selecting ffi-1.0 (installed)
selecting rts-1.0 (installed)
selecting zlib-0.5.2.0 (installed or hackage) and discarding zlib-0.2,
0.3,
0.4, 0.4.0.1, 0.4.0.2, 0.4.0.3, 0.4.0.4 and 0.5.0.0
selecting html-1.0.1.2 (installed or hackage) and discarding html-1.0
and
1.0.1.1
selecting xhtml-3000.2.0.1 (installed or hackage) and discarding
xhtml-3000.0.0, 3000.0.1, 3000.0.2.1, 3000.0.2.2, 3000.1.0.0 and
3000.2.0.0
selecting stm-2.1.1.2 (installed or hackage) and discarding stm-2.1,
2.1.1.0
and 2.1.2.0
selecting happstack-ixset-0.5.0.1 (hackage) and discarding
happstack-ixset-0.5.0
selecting happstack-util-0.5.0.1 (installed or hackage) and discarding
SMTPClient-0.1, 0.2, 0.3, 1.0, 1.0.1, happstack-util-0.5.0, network-2.0
and
2.1.0.0
selecting SMTPClient-1.0.2 (installed or hackage) and discarding
hsemail-1.0,
1.1, 1.2, 1.3, 1.4 and 1.5
selecting hsemail-1.6 (installed or hackage)
selecting unix-compat-0.1.2.1 (installed or hackage) and discarding
unix-compat-0.1, 0.1.1 and 0.1.2.0
selecting strict-concurrency-0.2.3 (installed or hackage) and discarding
strict-concurrency-0.1, 0.2, 0.2.1 and 0.2.2
selecting hslogger-1.0.10 (installed or hackage) and discarding
hslogger-1.0.2, 1.0.4, 1.0.5, 1.0.6, 1.0.7 and 1.0.9
selecting binary-0.5.0.2 (installed or hackage) and discarding
binary-0.2,
0.3, 0.4, 0.4.1, 0.4.2, 0.4.3, 0.4.3.1, 0.4.4, 0.5 and 0.5.0.1
selecting MaybeT-0.1.2 (hackage) and discarding MaybeT-0.1.0 and 0.1.1
selecting HaXml-1.13.3 (hackage) and discarding HaXml-1.13.2
selecting network-2.2.1.7 (installed or hackage) and discarding
network-2.2.0.0, 2.2.0.1, 2.2.1, 2.2.1.1, 2.2.1.2, 2.2.1.3, 2.2.1.4,
2.2.1.5
and 2.2.1.6
selecting HStringTemplate-0.6.2 (installed or hackage) and discarding
HStringTemplate-0.4.3, 0.5, 0.5.1, 0.5.1.1, 0.5.1.2, 0.5.1.3, 0.6,
0.6.1,
parsec-3.0.0, 3.0.1 and 3.1.0
selecting parsec-2.1.0.1 (installed or hackage) and discarding
parsec-2.0 and
2.1.0.0
selecting parallel-2.2.0.1 (installed or hackage) and discarding
parallel-1.0.0.0, 1.0.0.1, 1.1.0.0, 1.1.0.1, 2.0.0.0, 2.1.0.0 and
2.2.0.0
selecting utf8-string-0.3.6 (installed or hackage) and discarding
utf8-string-0.3.4 and 0.3.5
selecting haskell-src-exts-1.8.2 (installed or hackage) and discarding
haskell-src-exts-1.5.0, 1.5.1, 1.5.2, 1.5.3, 1.6.0, 1.6.1, 1.7.0, 1.7.1,
1.7.2, 1.8.0, 1.8.1 and 1.9.0
selecting cpphs-1.11 (installed or hackage) and discarding cpphs-1.3,
1.5,
1.6, 1.7, 1.8, 1.9 and 1.10
selecting haskell98-1.0.1.1 (installed or hackage) and discarding
haskell98-1.0 and 1.0.1.0
selecting HJavaScript-0.4.7 (installed or hackage) and discarding
HJavaScript-0.4.6
selecting HUnit-1.2.2.1 (installed or hackage) and discarding HUnit-1.1,
1.2.0.0, 1.2.0.1, 1.2.0.2, 1.2.0.3 and 1.2.2.0
selecting random-1.0.0.2 (installed or hackage) and discarding
random-1.0.0.0
and 1.0.0.1
selecting time-1.1.4 (installed or hackage) and discarding time-1.2,
1.2.0.1
and 1.2.0.2
selecting template-haskell-2.4.0.1 (installed or hackage) and discarding
template-haskell-2.4.0.0
selecting bytestring-0.9.1.6 (installed or hackage) and discarding
bytestring-0.9, 0.9.0.1, 0.9.0.2, 0.9.0.3, 0.9.0.4, 0.9.1.0, 0.9.1.1,
0.9.1.2,
0.9.1.3, 0.9.1.4 and 0.9.1.5
selecting extensible-exceptions-0.1.1.2 (installed or hackage) and
discarding
extensible-exceptions-0.1.0.1, 0.1.1.0 and 0.1.1.1
selecting mtl-1.1.0.2 (installed or hackage) and discarding mtl-1.0,
1.1.0.0
and 1.1.0.1
selecting process-1.0.1.2 (installed or hackage) and discarding
filepath-1.0,
process-1.0.0.0 and 1.0.1.1
selecting pretty-1.0.1.1 (installed or hackage) and discarding
pretty-1.0.0.0
and 1.0.1.0
selecting directory-1.0.1.1 (installed or hackage) and discarding
directory-1.0.0.0, 1.0.0.3 and 1.0.1.0
selecting unix-2.4.0.1 (installed or hackage) and discarding unix-2.0,
2.2.0.0, 2.3.0.0, 2.3.1.0, 2.3.2.0 and 2.4.0.0
selecting old-time-1.0.0.4 (installed or hackage) and discarding
old-time-1.0.0.0, 1.0.0.2 and 1.0.0.3
selecting old-locale-1.0.0.2 (installed or hackage) and discarding
old-locale-1.0.0.0 and 1.0.0.1
selecting filepath-1.1.0.4 (installed or hackage) and discarding
filepath-1.1.0.0, 1.1.0.1, 1.1.0.2 and 1.1.0.3
selecting containers-0.3.0.0 (installed or hackage) and discarding
containers-0.2.0.0 and 0.2.0.1
selecting array-0.3.0.0 (installed or hackage) and discarding
array-0.2.0.0
selecting base-3.0.3.2 (installed) and 4.2.0.1 (installed) and
discarding
syb-0.1.0.0, 0.1.0.1, 0.1.0.2, 0.1.0.3, 0.2 and 0.2.1
selecting integer-gmp-0.2.0.1 (installed)
selecting syb-0.1.0.2 (installed)
In order, the following would be installed:
HStringTemplate-0.6.2 (reinstall) changes: parsec-3.1.0 -> 2.1.0.1
HaXml-1.13.3 (new version)
MaybeT-0.1.2 (new package)
hsemail-1.6 (reinstall) changes: parsec-3.1.0 -> 2.1.0.1
network-2.2.1.7 (reinstall) changes: parsec-3.1.0 -> 2.1.0.1
SMTPClient-1.0.2 (reinstall)
hslogger-1.0.10 (reinstall)
happstack-util-0.5.0.1 (reinstall) changes: parsec-3.1.0 -> 2.1.0.1
happstack-data-0.5.0 (new package)
happstack-ixset-0.5.0.1 (new package)
happstack-state-0.5.0 (new package)
sendfile-0.6.1 (new package)
happstack-server-0.5.0 (new package)
happstack-0.5.0 (new package)
 cabal install happstack --constraint 'parsec >= 3'
Resolving dependencies...
cabal: cannot configure HStringTemplate-0.6.2. It requires parsec <3
For the dependency on parsec <3 there are these packages: parsec-2.0,
parsec-2.1.0.0 and parsec-2.1.0.1. However none of them are available.
parsec-2.0 was excluded because of the top level dependency parsec >=3
parsec-2.1.0.0 was excluded because of the top level dependency parsec
>=3
parsec-2.1.0.1 was excluded because of the top level dependency parsec
>=3
mpiechotka at localhost ~ % cabal install happstack -dry-run
-v               
unrecognized option `-dry-run'
mpiechotka at localhost ~ % cabal install happstack --dry-run -v
/usr/bin/ghc --numeric-version
looking for package tool: ghc-pkg near compiler in /usr/bin
found package tool in /usr/bin/ghc-pkg
/usr/bin/ghc-pkg --version
/usr/bin/ghc --supported-languages
Reading installed packages...
/usr/bin/ghc-pkg dump --global
/usr/bin/ghc-pkg dump --user
/usr/bin/ghc --print-libdir
Reading available packages...
Resolving dependencies...
selecting happstack-0.5.0 (hackage) and discarding HStringTemplate-0.2,
0.3,
0.3.1, 0.3.2, 0.4, 0.4.1, 0.4.2, happstack-0.2.1, 0.3.1, 0.3.2, 0.4.1,
happstack-data-0.1, 0.2.1, 0.3.1, 0.3.2, 0.3.3, 0.4.1,
happstack-ixset-0.1,
0.2.1, 0.3.1, 0.3.2, 0.4.1, happstack-server-0.1, 0.2.1, 0.3.1, 0.3.2,
0.3.3,
0.4.1, happstack-state-0.1, 0.2.1, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.4.1,
happstack-util-0.1, 0.2.1, 0.3.1, 0.3.2, 0.4.1, harp-0.2.1, hsp-0.2,
0.4,
0.4.4, 0.4.5, 0.5.0, 0.5.1, hsx-0.4, 0.4.4, 0.4.5, 0.4.6, 0.4.8, 0.5.0,
0.5.1,
0.5.2, 0.5.5, 0.5.6, 0.6.0, 0.6.1 and 0.6.2
selecting happstack-data-0.5.0 (hackage) and discarding HaXml-1.19,
1.19.1,
1.19.2, 1.19.3, 1.19.4, 1.19.5, 1.19.6, 1.19.7, 1.20, 1.20.1, 1.20.2,
syb-with-class-0.1, 0.2, 0.3, 0.4, 0.5, 0.5.1, 0.6, text-0.1, 0.2, 0.3,
0.4,
0.5, 0.6, 0.7, 0.7.0.1, time-1.0, 1.1.2.0, 1.1.2.1, 1.1.2.2, 1.1.2.3,
1.1.2.4
and 1.1.3
selecting happstack-server-0.5.0 (hackage) and discarding sendfile-0.1,
0.2,
0.3, 0.3.1, 0.4, 0.5, utf8-string-0.1, 0.2, 0.3, 0.3.1, 0.3.1.1, 0.3.2
and
0.3.3
selecting happstack-state-0.5.0 (hackage)
selecting harp-0.4 (installed or hackage)
selecting hsp-0.5.2 (installed or hackage) and discarding HJScript-0.4,
0.4.4,
0.4.5, 0.4.6, 0.4.7, 0.4.8 and 0.4.9
selecting HJScript-0.5.0 (installed or hackage) and discarding
HJavaScript-0.4, 0.4.4 and 0.4.5
selecting hsx-0.7.0 (installed or hackage) and discarding
haskell-src-exts-0.2.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5, 0.3.7, 0.3.9,
0.3.10,
0.3.11, 0.3.12, 0.4.1, 0.4.2, 0.4.3, 0.4.3.1, 0.4.4, 0.4.4.1, 0.4.5,
0.4.6,
0.4.8, 0.5.2, 0.5.3, 0.5.4, 0.5.5, 0.5.6, 0.5.7, 1.0.0, 1.0.1, 1.1.0,
1.1.1,
1.1.3, 1.1.3.1, 1.1.4, 1.2.0, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5
and
1.4.0
selecting sendfile-0.6.1 (hackage)
selecting syb-with-class-0.6.1 (installed or hackage) and discarding
template-haskell-2.2.0.0, 2.3.0.0 and 2.3.0.1
selecting syb-with-class-instances-text-0.0.1 (installed or hackage)
selecting text-0.7.1.0 (installed or hackage) and discarding
deepseq-1.0.0.0
selecting deepseq-1.1.0.0 (installed or hackage) and discarding
array-0.1.0.0,
containers-0.1.0.0 and 0.1.0.1
selecting ghc-prim-0.2.0.0 (installed)
selecting ffi-1.0 (installed)
selecting rts-1.0 (installed)
selecting zlib-0.5.2.0 (installed or hackage) and discarding zlib-0.2,
0.3,
0.4, 0.4.0.1, 0.4.0.2, 0.4.0.3, 0.4.0.4 and 0.5.0.0
selecting html-1.0.1.2 (installed or hackage) and discarding html-1.0
and
1.0.1.1
selecting xhtml-3000.2.0.1 (installed or hackage) and discarding
xhtml-3000.0.0, 3000.0.1, 3000.0.2.1, 3000.0.2.2, 3000.1.0.0 and
3000.2.0.0
selecting stm-2.1.1.2 (installed or hackage) and discarding stm-2.1,
2.1.1.0
and 2.1.2.0
selecting happstack-ixset-0.5.0.1 (hackage) and discarding
happstack-ixset-0.5.0
selecting happstack-util-0.5.0.1 (installed or hackage) and discarding
SMTPClient-0.1, 0.2, 0.3, 1.0, 1.0.1, happstack-util-0.5.0, network-2.0
and
2.1.0.0
selecting SMTPClient-1.0.2 (installed or hackage) and discarding
hsemail-1.0,
1.1, 1.2, 1.3, 1.4 and 1.5
selecting hsemail-1.6 (installed or hackage)
selecting unix-compat-0.1.2.1 (installed or hackage) and discarding
unix-compat-0.1, 0.1.1 and 0.1.2.0
selecting strict-concurrency-0.2.3 (installed or hackage) and discarding
strict-concurrency-0.1, 0.2, 0.2.1 and 0.2.2
selecting hslogger-1.0.10 (installed or hackage) and discarding
hslogger-1.0.2, 1.0.4, 1.0.5, 1.0.6, 1.0.7 and 1.0.9
selecting binary-0.5.0.2 (installed or hackage) and discarding
binary-0.2,
0.3, 0.4, 0.4.1, 0.4.2, 0.4.3, 0.4.3.1, 0.4.4, 0.5 and 0.5.0.1
selecting MaybeT-0.1.2 (hackage) and discarding MaybeT-0.1.0 and 0.1.1
selecting HaXml-1.13.3 (hackage) and discarding HaXml-1.13.2
selecting network-2.2.1.7 (installed or hackage) and discarding
network-2.2.0.0, 2.2.0.1, 2.2.1, 2.2.1.1, 2.2.1.2, 2.2.1.3, 2.2.1.4,
2.2.1.5
and 2.2.1.6
selecting HStringTemplate-0.6.2 (installed or hackage) and discarding
HStringTemplate-0.4.3, 0.5, 0.5.1, 0.5.1.1, 0.5.1.2, 0.5.1.3, 0.6,
0.6.1,
parsec-3.0.0, 3.0.1 and 3.1.0
selecting parsec-2.1.0.1 (installed or hackage) and discarding
parsec-2.0 and
2.1.0.0
selecting parallel-2.2.0.1 (installed or hackage) and discarding
parallel-1.0.0.0, 1.0.0.1, 1.1.0.0, 1.1.0.1, 2.0.0.0, 2.1.0.0 and
2.2.0.0
selecting utf8-string-0.3.6 (installed or hackage) and discarding
utf8-string-0.3.4 and 0.3.5
selecting haskell-src-exts-1.8.2 (installed or hackage) and discarding
haskell-src-exts-1.5.0, 1.5.1, 1.5.2, 1.5.3, 1.6.0, 1.6.1, 1.7.0, 1.7.1,
1.7.2, 1.8.0, 1.8.1 and 1.9.0
selecting cpphs-1.11 (installed or hackage) and discarding cpphs-1.3,
1.5,
1.6, 1.7, 1.8, 1.9 and 1.10
selecting haskell98-1.0.1.1 (installed or hackage) and discarding
haskell98-1.0 and 1.0.1.0
selecting HJavaScript-0.4.7 (installed or hackage) and discarding
HJavaScript-0.4.6
selecting HUnit-1.2.2.1 (installed or hackage) and discarding HUnit-1.1,
1.2.0.0, 1.2.0.1, 1.2.0.2, 1.2.0.3 and 1.2.2.0
selecting random-1.0.0.2 (installed or hackage) and discarding
random-1.0.0.0
and 1.0.0.1
selecting time-1.1.4 (installed or hackage) and discarding time-1.2,
1.2.0.1
and 1.2.0.2
selecting template-haskell-2.4.0.1 (installed or hackage) and discarding
template-haskell-2.4.0.0
selecting bytestring-0.9.1.6 (installed or hackage) and discarding
bytestring-0.9, 0.9.0.1, 0.9.0.2, 0.9.0.3, 0.9.0.4, 0.9.1.0, 0.9.1.1,
0.9.1.2,
0.9.1.3, 0.9.1.4 and 0.9.1.5
selecting extensible-exceptions-0.1.1.2 (installed or hackage) and
discarding
extensible-exceptions-0.1.0.1, 0.1.1.0 and 0.1.1.1
selecting mtl-1.1.0.2 (installed or hackage) and discarding mtl-1.0,
1.1.0.0
and 1.1.0.1
selecting process-1.0.1.2 (installed or hackage) and discarding
filepath-1.0,
process-1.0.0.0 and 1.0.1.1
selecting pretty-1.0.1.1 (installed or hackage) and discarding
pretty-1.0.0.0
and 1.0.1.0
selecting directory-1.0.1.1 (installed or hackage) and discarding
directory-1.0.0.0, 1.0.0.3 and 1.0.1.0
selecting unix-2.4.0.1 (installed or hackage) and discarding unix-2.0,
2.2.0.0, 2.3.0.0, 2.3.1.0, 2.3.2.0 and 2.4.0.0
selecting old-time-1.0.0.4 (installed or hackage) and discarding
old-time-1.0.0.0, 1.0.0.2 and 1.0.0.3
selecting old-locale-1.0.0.2 (installed or hackage) and discarding
old-locale-1.0.0.0 and 1.0.0.1
selecting filepath-1.1.0.4 (installed or hackage) and discarding
filepath-1.1.0.0, 1.1.0.1, 1.1.0.2 and 1.1.0.3
selecting containers-0.3.0.0 (installed or hackage) and discarding
containers-0.2.0.0 and 0.2.0.1
selecting array-0.3.0.0 (installed or hackage) and discarding
array-0.2.0.0
selecting base-3.0.3.2 (installed) and 4.2.0.1 (installed) and
discarding
syb-0.1.0.0, 0.1.0.1, 0.1.0.2, 0.1.0.3, 0.2 and 0.2.1
selecting integer-gmp-0.2.0.1 (installed)
selecting syb-0.1.0.2 (installed)
In order, the following would be installed:
HStringTemplate-0.6.2 (reinstall) changes: parsec-3.1.0 -> 2.1.0.1
HaXml-1.13.3 (new version)
MaybeT-0.1.2 (new package)
hsemail-1.6 (reinstall) changes: parsec-3.1.0 -> 2.1.0.1
network-2.2.1.7 (reinstall) changes: parsec-3.1.0 -> 2.1.0.1
SMTPClient-1.0.2 (reinstall)
hslogger-1.0.10 (reinstall)
happstack-util-0.5.0.1 (reinstall) changes: parsec-3.1.0 -> 2.1.0.1
happstack-data-0.5.0 (new package)
happstack-ixset-0.5.0.1 (new package)
happstack-state-0.5.0 (new package)
sendfile-0.6.1 (new package)
happstack-server-0.5.0 (new package)
happstack-0.5.0 (new package)
mpiechotka at localhost ~ % cabal install happstack --constraint 'parsec >=
3' -v --dry-run
/usr/bin/ghc --numeric-version
looking for package tool: ghc-pkg near compiler in /usr/bin
found package tool in /usr/bin/ghc-pkg
/usr/bin/ghc-pkg --version
/usr/bin/ghc --supported-languages
Reading installed packages...
/usr/bin/ghc-pkg dump --global
/usr/bin/ghc-pkg dump --user
/usr/bin/ghc --print-libdir
Reading available packages...
Resolving dependencies...
selecting happstack-0.5.0 (hackage) and discarding HStringTemplate-0.2,
0.3,
0.3.1, 0.3.2, 0.4, 0.4.1, 0.4.2, happstack-0.2.1, 0.3.1, 0.3.2, 0.4.1,
happstack-data-0.1, 0.2.1, 0.3.1, 0.3.2, 0.3.3, 0.4.1,
happstack-ixset-0.1,
0.2.1, 0.3.1, 0.3.2, 0.4.1, happstack-server-0.1, 0.2.1, 0.3.1, 0.3.2,
0.3.3,
0.4.1, happstack-state-0.1, 0.2.1, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.4.1,
happstack-util-0.1, 0.2.1, 0.3.1, 0.3.2, 0.4.1, harp-0.2.1, hsp-0.2,
0.4,
0.4.4, 0.4.5, 0.5.0, 0.5.1, hsx-0.4, 0.4.4, 0.4.5, 0.4.6, 0.4.8, 0.5.0,
0.5.1,
0.5.2, 0.5.5, 0.5.6, 0.6.0, 0.6.1 and 0.6.2
selecting happstack-data-0.5.0 (hackage) and discarding HaXml-1.19,
1.19.1,
1.19.2, 1.19.3, 1.19.4, 1.19.5, 1.19.6, 1.19.7, 1.20, 1.20.1, 1.20.2,
syb-with-class-0.1, 0.2, 0.3, 0.4, 0.5, 0.5.1, 0.6, text-0.1, 0.2, 0.3,
0.4,
0.5, 0.6, 0.7, 0.7.0.1, time-1.0, 1.1.2.0, 1.1.2.1, 1.1.2.2, 1.1.2.3,
1.1.2.4
and 1.1.3
selecting happstack-server-0.5.0 (hackage) and discarding sendfile-0.1,
0.2,
0.3, 0.3.1, 0.4, 0.5, utf8-string-0.1, 0.2, 0.3, 0.3.1, 0.3.1.1, 0.3.2
and
0.3.3
selecting happstack-state-0.5.0 (hackage)
selecting harp-0.4 (installed or hackage)
selecting hsp-0.5.2 (installed or hackage) and discarding HJScript-0.4,
0.4.4,
0.4.5, 0.4.6, 0.4.7, 0.4.8 and 0.4.9
selecting HJScript-0.5.0 (installed or hackage) and discarding
HJavaScript-0.4, 0.4.4 and 0.4.5
selecting hsx-0.7.0 (installed or hackage) and discarding
haskell-src-exts-0.2.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5, 0.3.7, 0.3.9,
0.3.10,
0.3.11, 0.3.12, 0.4.1, 0.4.2, 0.4.3, 0.4.3.1, 0.4.4, 0.4.4.1, 0.4.5,
0.4.6,
0.4.8, 0.5.2, 0.5.3, 0.5.4, 0.5.5, 0.5.6, 0.5.7, 1.0.0, 1.0.1, 1.1.0,
1.1.1,
1.1.3, 1.1.3.1, 1.1.4, 1.2.0, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5
and
1.4.0
selecting sendfile-0.6.1 (hackage)
selecting syb-with-class-0.6.1 (installed or hackage) and discarding
template-haskell-2.2.0.0, 2.3.0.0 and 2.3.0.1
selecting syb-with-class-instances-text-0.0.1 (installed or hackage)
selecting text-0.7.1.0 (installed or hackage) and discarding
deepseq-1.0.0.0
selecting deepseq-1.1.0.0 (installed or hackage) and discarding
array-0.1.0.0,
containers-0.1.0.0 and 0.1.0.1
selecting ghc-prim-0.2.0.0 (installed)
selecting ffi-1.0 (installed)
selecting rts-1.0 (installed)
selecting zlib-0.5.2.0 (installed or hackage) and discarding zlib-0.2,
0.3,
0.4, 0.4.0.1, 0.4.0.2, 0.4.0.3, 0.4.0.4 and 0.5.0.0
selecting html-1.0.1.2 (installed or hackage) and discarding html-1.0
and
1.0.1.1
selecting xhtml-3000.2.0.1 (installed or hackage) and discarding
xhtml-3000.0.0, 3000.0.1, 3000.0.2.1, 3000.0.2.2, 3000.1.0.0 and
3000.2.0.0
selecting stm-2.1.1.2 (installed or hackage) and discarding stm-2.1,
2.1.1.0
and 2.1.2.0
selecting happstack-ixset-0.5.0.1 (hackage) and discarding
happstack-ixset-0.5.0
selecting happstack-util-0.5.0.1 (installed or hackage) and discarding
SMTPClient-0.1, 0.2, 0.3, 1.0, 1.0.1, happstack-util-0.5.0, network-2.0
and
2.1.0.0
selecting SMTPClient-1.0.2 (installed or hackage) and discarding
hsemail-1.0,
1.1, 1.2, 1.3, 1.4 and 1.5
selecting hsemail-1.6 (installed or hackage)
selecting unix-compat-0.1.2.1 (installed or hackage) and discarding
unix-compat-0.1, 0.1.1 and 0.1.2.0
selecting strict-concurrency-0.2.3 (installed or hackage) and discarding
strict-concurrency-0.1, 0.2, 0.2.1 and 0.2.2
selecting hslogger-1.0.10 (installed or hackage) and discarding
hslogger-1.0.2, 1.0.4, 1.0.5, 1.0.6, 1.0.7 and 1.0.9
selecting binary-0.5.0.2 (installed or hackage) and discarding
binary-0.2,
0.3, 0.4, 0.4.1, 0.4.2, 0.4.3, 0.4.3.1, 0.4.4, 0.5 and 0.5.0.1
selecting MaybeT-0.1.2 (hackage) and discarding MaybeT-0.1.0 and 0.1.1
selecting HaXml-1.13.3 (hackage) and discarding HaXml-1.13.2
selecting network-2.2.1.7 (installed or hackage) and discarding
network-2.2.0.0, 2.2.0.1, 2.2.1, 2.2.1.1, 2.2.1.2, 2.2.1.3, 2.2.1.4,
2.2.1.5
and 2.2.1.6
selecting
cabal: cannot configure HStringTemplate-0.6.2. It requires parsec <3
For the dependency on parsec <3 there are these packages: parsec-2.0,
parsec-2.1.0.0 and parsec-2.1.0.1. However none of them are available.
parsec-2.0 was excluded because of the top level dependency parsec >=3
parsec-2.1.0.0 was excluded because of the top level dependency parsec
>=3
parsec-2.1.0.1 was excluded because of the top level dependency parsec
>=3

And if you mean why I use it in general - I'm using parsec 3 in packages
which depends on, among others, network.

> > If I just run:
> > % runhaskell Setup.hs configure --user
> > All seems to be ok but
> > % cabal install
> > Wants to reinstall packages (or complains about constraints).
> 
> Note that with its dependency resolution stuff, cabal-install tries to
> ensure you have an entire working and consistent set of dependencies,
> whereas doing it manually will happily break everything.
> 
> > It is not a missing dependency. It is that the cabal-install tries to
> > use dependencies from hackage instead of installed packages.
> 
> Not quite: if its already installed and working, cabal-install will
> use it; if there is some inconsistency (e.g. package Foo was built
> against Bar-x but you now have Bar-y installed) then cabal-install
> will try rebuilding that package; note that if you installed it from a
> local edited repository then cabal-install doesn't know this and will
> get the official hackage version.
> 

Everything is working. Not rebuilding HStringTemplate/happstack-utils
would perfectly work as they are build against parsec 3 and etc. 

% ghc-pkg check
%

It tries to install it regardless of if it is broken or not.

> Also, I note that you seem to use the Gentoo Haskell overlay (as
> you've made bug reports about it) but you're also building packages by
> hand; this can also lead to problems (don't mix your packages kids!).
> 

Possibly but:
 - I'd like to have gtk2hs, haskell-platform and ghc on system level
instead of compiling it on my own. With exception of darcs i'm not using
anything else from there.
 - Haskell overlay don't have all packages I need sufficiently fast.
Well - it don't have everything I need in the first place.

Regards
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