buildsystem: relax requirement on cmake version

Commit 73cc5089 (Using target_compile_features to specify C++ 11
standard) bumped the required cmake version, from 3.0 to 3.8, so
as to get the definition of target_compile_features().

However, target_compile_features() was introduced in cmake-3.1:
    https://cmake.org/cmake/help/v3.1/command/target_compile_features.html

And using cmake-3.1 is indeed sufficient to properly build.

As such, relax the minimum required version down to cmake-3.1,
so we can build on oldish, entreprise-grade distributions that
only have cmake-3.1 (or at least, don't have up to cmake-3.8).

Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
This commit is contained in:
Yann E. MORIN 2018-12-31 18:42:09 +01:00
parent c682b9879b
commit e8b6b7adc1
5 changed files with 5 additions and 5 deletions

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@ -1,4 +1,4 @@
cmake_minimum_required(VERSION 3.8)
cmake_minimum_required(VERSION 3.1)
##
## PROJECT

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cmake_minimum_required(VERSION 3.8)
cmake_minimum_required(VERSION 3.1)
project(JSON_Benchmarks LANGUAGES CXX)
# set compiler flags

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cmake_minimum_required(VERSION 3.8)
cmake_minimum_required(VERSION 3.1)
project(DummyImport CXX)

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cmake_minimum_required(VERSION 3.8)
cmake_minimum_required(VERSION 3.1)
project(DummyImport CXX)

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@ -1,4 +1,4 @@
cmake_minimum_required(VERSION 3.8)
cmake_minimum_required(VERSION 3.1)
project(DummyImportMinVer CXX)