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List:       darcs-devel
Subject:    [darcs-devel] [issue2345] misleading error from -liconv check in Setup.lhs
From:       Dan Frumin <bugs () darcs ! net>
Date:       2014-01-20 22:14:02
Message-ID: 1390256042.09.0.991535561847.issue2345 () darcs ! net
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Dan Frumin <difrumin@gmail.com> added the comment:

Possible solution to the issue.

I was not sure about getting rid of the `postConf` hook altogether.
Right now, the default `postConf` hook contains just that: an external
dependency check; however, they might arrive at the stage when they want
to add something else to that hook.

Here is some sample output from my Linux system without the libcurl-dev
package:

----------------------------------------------
[0] % cabal configure -fforce-char8-encoding
Resolving dependencies...
[1 of 1] Compiling Main             ( Setup.lhs, dist/setup/Main.o )
Linking ./dist/setup/setup ...
Configuring darcs-2.9.8...
setup: Missing dependency on a foreign library:
* Missing (or bad) header file: curl/curl.h
* Missing C library: curl
This problem can usually be solved by installing the system package that
provides this library (you may need the "-dev" version). If the library is
already installed but in a non-standard location then you can use the flags
--extra-include-dirs= and --extra-lib-dirs= to specify where it is.
If the header file does exist, it may contain errors that are caught by
the C
compiler at the preprocessing stage. In this case you can re-run configure
with the verbosity flag -v3 to see the error messages.

[1] % cabal configure -fforce-char8-encoding -f-curl
Resolving dependencies...
Configuring darcs-2.9.8...
checking whether to use -liconv... not needed.

----------------------------------------------

----------
status:  -> has-patch

__________________________________
Darcs bug tracker <bugs@darcs.net>
<http://bugs.darcs.net/issue2345>
__________________________________
["resolve-issue2345_-solution-using-cabal_s-checkforeigndeps.dpatch" (application/octet-stream)]

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