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Fixes #3229.
(cherry picked from commit 7ab167b8)

(cherry picked from commit 9cd1387fcd582a6131746e6742597069d54f905a)

* Renamed to 'extra-framework-dirs'.
* Added 'extra-framework-dirs' to ConfigFlags.
* Added some checks.
* Updated changelog.

* Fix parsing of '--allow-newer=foo --allow-newer=bar'.
* Fix './Setup configure --allow-newer --enable-{tests, benchmarks}'.

This mode implements #2911, and allows to connect the test runner
directly to stdout/stdin. This is more reliable in the presence of no
threading, i.e. a work-arond for #2398.

I make the test suite use this, so that it passes again, despite
printing lots of stuff. Once #2398 is fixed properly, the test suite
should probably be extended to test all the various --show-details
modes.

This reverts commit bd7bbd70, reversing
changes made to d8fa4618.

This fixes #2689.

ttuegel authored Apr 25, 2015 and Duncan Coutts committed Jul 02, 2015

Conflicts:
	Cabal/changelog

Fixes #2484. The 'builddir' option may now be specified in cabal.config
as well. It will also be read from the CABAL_BUILDDIR environment
variable, if set. The order of precedence (highest to lowest) is:
1. --builddir command line option
2. CABAL_BUILDDIR environment variable
3. cabal.config setting

[ci skip]

[ci skip]

[ci skip]

This commit includes cabal_macros in c2hs call, so it will
be possible to use MIN_VERSION macros in chs files.

Add functionality to allow preprocessors like hsc2hs and C2HS to inform
Cabal of extra C sources that they create that need to be compiled and
linked.  Includes hsc2hs-based test case.

It doesn't make any sense to do a profiling build of an executable if
the library doesn't have a profiled build! The option
--enable-executable-profiling is changed to --enable-profiling to
reflect that it is now a global flag. The old option is still recognized
(for now).

Dynamically linking executables will fail without a shared library
unless the executables do not depend on the library or there is no
library. If there is no library, building shared libraries comes at no
cost. If there is a library, the executables usually depend on it, so it
makes sense to --enable-shared.

If the user passes --disable-shared, it will still be honored, but a
warning will be produced.

Fixes #1852.

Makes things a little simpler in GHC's build system if libraries are in
the same directory as their name.

At the top level we now have cabal/ and cabal-install/