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[CMake] Update to requiring CMake 3.4.3

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Summary:
This is as per the discussions on developer lists:

http://lists.llvm.org/pipermail/llvm-dev/2016-April/098780.html
http://lists.llvm.org/pipermail/llvm-dev/2016-May/100058.html

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D20822

llvm-svn: 271325
This commit is contained in:
Chris Bieneman 2016-05-31 20:21:32 +00:00
parent 471fe02144
commit a234eb432f
3 changed files with 7 additions and 5 deletions
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2
CMakeLists.txt
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@ -1,6 +1,6 @@
# See docs/CMake.html for instructions about how to build LLVM with CMake.
cmake_minimum_required(VERSION 2.8.12.2)
cmake_minimum_required(VERSION 3.4.3)
if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
message(STATUS "No build type selected, default to Debug")

2
docs/CMake.rst
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@ -561,7 +561,7 @@ and uses them to build a simple application ``simple-tool``.
.. code-block:: cmake
cmake_minimum_required(VERSION 2.8.8)
cmake_minimum_required(VERSION 3.4.3)
project(SimpleProject)
find_package(LLVM REQUIRED CONFIG)

8
docs/GettingStarted.rst
View File

@ -83,9 +83,11 @@ Here's the short story for getting up and running quickly with LLVM:
before trying to configure with cmake. cmake does not pickup newly
added source directories in incremental builds.
The build uses `CMake <CMake.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.
The build uses `CMake <CMake.html>`_. LLVM requires CMake 3.4.3 to build. It
is generally recommended to use a recent CMake, especially if you're
generating Ninja build files. This is because the CMake project is constantly
improving the quality of the generators, and the Ninja generator gets a lot
of attention.
* ``cd where you want to build llvm``
* ``mkdir build``