r177918 - <rdar://problem/13434605> Periodically prune the module cache so that it does not grow forever.

[Timur Iskhodzhanov]

Hi Douglas,

2013/3/25 Douglas Gregor <dgregor at apple.com>:
> Author: dgregor
> Date: Mon Mar 25 16:19:16 2013
> New Revision: 177918
>
> URL: http://llvm.org/viewvc/llvm-project?rev=177918&view=rev
> Log:
> <rdar://problem/13434605> Periodically prune the module cache so that it does not grow forever.
>
> Added:
>     cfe/trunk/test/Modules/prune.m
> Modified:
>     cfe/trunk/docs/Modules.rst
>     cfe/trunk/include/clang/Driver/Options.td
>     cfe/trunk/include/clang/Lex/HeaderSearchOptions.h
>     cfe/trunk/lib/Driver/Tools.cpp
>     cfe/trunk/lib/Frontend/CompilerInstance.cpp
>     cfe/trunk/lib/Frontend/CompilerInvocation.cpp

I believe this has broken the Windows build:

130>------ Build started: Project: clangFrontend, Configuration: Debug
Win32 ------
130>..\..\..\..\..\llvm\tools\clang\lib\Frontend\CompilerInstance.cpp(48):
fatal error C1083: Cannot open include file: 'sys/time.h': No such
file or directory