[llvm] r256791 - Update docs to recommend CMake >= v3.2.

[Eric Christopher via llvm-commits]

Author: echristo
Date: Mon Jan  4 17:22:43 2016
New Revision: 256791

URL: http://llvm.org/viewvc/llvm-project?rev=256791&view=rev
Log:
Update docs to recommend CMake >= v3.2.

CMake v3.2 or newer is necessary to get interactive output when running
Lit via Ninja. Otherwise Ninja will buffer Lit's output, which makes
for a crummy experience -- you can't tell if your tests are hung!

Patch by Justin Lebar!

Modified:
    llvm/trunk/docs/CMake.rst
    llvm/trunk/docs/GettingStarted.rst

Modified: llvm/trunk/docs/CMake.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/CMake.rst?rev=256791&r1=256790&r2=256791&view=diff
==============================================================================
--- llvm/trunk/docs/CMake.rst (original)
+++ llvm/trunk/docs/CMake.rst Mon Jan  4 17:22:43 2016
@@ -26,7 +26,10 @@ Quick start
 We use here the command-line, non-interactive CMake interface.
 
 #. `Download <http://www.cmake.org/cmake/resources/software.html>`_ and install
-   CMake. Version 2.8.8 is the minimum required.
+   CMake. Version 2.8.8 is the minimum required, but if you're using the Ninja
+   backend, CMake v3.2 or newer is required to `get interactive output
+   <http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20141117/244797.html>`_
+   when running :doc:`Lit <CommandGuide/lit>`.
 
 #. Open a shell. Your development tools must be reachable from this shell
    through the PATH environment variable.

Modified: llvm/trunk/docs/GettingStarted.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/GettingStarted.rst?rev=256791&r1=256790&r2=256791&view=diff
==============================================================================
--- llvm/trunk/docs/GettingStarted.rst (original)
+++ llvm/trunk/docs/GettingStarted.rst Mon Jan  4 17:22:43 2016
@@ -78,6 +78,8 @@ Here's the short story for getting up an
 
    The usual build uses `CMake <CMake.html>`_. If you would rather use
    autotools, see `Building LLVM with autotools <BuildingLLVMWithAutotools.html>`_.
+   Although the build is known to work with CMake >= 2.8.8, we recommend CMake
+   >= v3.2, especially if you're generating Ninja build files.
 
    * ``cd where you want to build llvm``
    * ``mkdir build``