#2970: detecting readline in top-level ./configure is no guarantee of readline
support
-----------------------------+----------------------------------------------
Reporter: duncan | Owner:
Type: bug | Status: new
Priority: normal | Component: Build System
Version: 6.8.3 | Severity: normal
Keywords: | Testcase:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
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This is about readline in 6.8.x, but presumably the same issue applies for
editline in 6.10.x.
The top level `./configure` script can detect readline, but then the
readline package's `./configure` script can fail to do so. Presumably this
is because that `./configure` script does not get passed the `--with-
readline-includes=` and `--with-readline-libraries=` flags. The top level
`./configure` script does not mention anything about these flags or
readline in general.
Presumably the top level configure script's readline checks can work if
readline happens to be in the same place as was specified for gmp with the
flags `--with-gmp-includes=` and `--with-readline-libraries=`.
The way in which it silently gets automatically deseletected despite the
reassuring messages from the top level `./configure` is quite confusing.
It might be nice if we could say that we really want a feature and have it
fail if it could not comply rather than silently turning the feature off.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2970>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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