Recompilation checker doesn't take into account CPP headers

When using CPP, the recompilation checker doesn't check the date on any header files that might be #included. We already have to run CPP on the file anyway in order to extract the imports and module name, so we might as find the #included files and check their modification times.

See also #3588.

Trac metadata

Trac field	Value
Version	6.10.4
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture

changed milestone to %6.14 branch

changed weight to 5

added Tbug Trac import labels

I've got this logic in a build system I wrote. At the moment I need to run GHC with the force recompilation flag to make sure GHC builds when it should, after headers have changed.

Trac metadata

Trac field	Value
TypeOfFailure	- → OtherFailure

removed milestone

changed milestone to %7.0.2

mentioned in issue #4900

changed milestone to %7.2.1

changed milestone to %7.4.1

mentioned in commit 5262def1

mentioned in commit 3f34e091

closed

Mostly fixed, see also #4900.

Trac metadata

Trac field	Value
Resolution	Unresolved → ResolvedFixed

mentioned in commit 803fc5db

In commit 5262def1:

Author: Simon Marlow <marlowsd@gmail.com>
Date:   Fri Nov 18 12:40:47 2011 +0000

    test for #3589

Trac metadata

Trac field	Value
Test case	- → driver/recomp011/recomp011

added Pnormal label