Your condensed summary was my understanding, but if I try to issue
Cabal install --reinstall cmu
It works every time from a MSYS shell, but with Cygwin I get
If MSYS works for you, why not stick with it?-)
Cygwin with MinGW tools should work, but it is very easy to mess up
with this setup (configure scripts might not notice that they are on
windows and use the wrong calling convention, Cygwin libraries and
compiler tools might be called accidentally if they are installed, and
so on). Of course, the more people give up and switch to MSYS, the
smaller the chances that such bugs (things that accidentally work when
using MSYS, or with a certain directory layout) get reported and fixed.
Linking dist\build\cmu\cmu.exe ...
C:\Program Files\Haskell Platform\2010.1.0.0\lib\..\mingw\bin\windres:
can't open temporary file `\/cca04932.irc': No such file or directory
cabal.exe: Error: some packages failed to install:
cmu-1.2 failed during the building phase. The exception was:
ExitFailure 1
('cmu' is just an example; the same behaviour seems apparent whatever the
package; I see something very similar when I ask GHC to compile hello.hs.)
You could try running 'ghc -v hello.hs' and check the windres command
for oddities. I have no problems building a simple hello world from Cygwin:
$ uname -a
CYGWIN_NT-6.1-WOW64 VAIO 1.7.5(0.225/5/3) 2010-04-12 19:07 i686 Cygwin
$ type ghc
ghc is hashed (/cygdrive/c/haskell/ghc/ghc-6.12.2.20100522/bin/ghc)
$ ghc tst.hs
$ ./main.exe
Hello, World!
The general answer I seem to have been getting (and responses I have seen
elsewhere top this problem) is 'don't expect the Haskell tools to work
with
Cygwin'.
That tends to be a self-fulfilling prophesy, similar to 'don't expect the
Haskell
tools to work on Windows (because so many people rely on unixisms)'. But
the result is that problems do surface more often in this configuration. If
you
want to investigate, you could file a report on the HP trac.
Claus
At any rate it seems that, for some people at least, the latest version of
the Haskell tools won't work when launched from Cygwin Bash.
Chris
-----Original Message-----
From: haskell-cafe-boun...@haskell.org
[mailto:haskell-cafe-boun...@haskell.org] On Behalf Of Claus Reinke
Sent: 08 June 2010 09:02
To: haskell-cafe@haskell.org
Subject: Re: [Haskell-cafe] HP/Cygwin and Curl
Thanks Stephen--that was related to my original question, about using
HP with Cygwin. The answer seems to be No!--you must use MSYS (for
real work).
The short version:
- Cygwin provides commandline tools, compilers and libraries
- MSYS provides commandline tools for the MinGW compilers and libraries
You can use the commandline tools from either Cygwin or MSYS, but you need
to compile and link with the compilers and libraries from MinGW.
Cygwin's gcc produces binaries that live in a unix-emulation on top of
windows, and depend on a cygwin dll to act as a translator. MinGW's gcc
produces native windows binaries.
Claus
http://www.haskell.org/ghc/docs/6.12.2/html/users_guide/ghci-cygwin.html
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