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Ran 13 Jan 2019 06:28PM UTC

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Committed 13 Jan 2019 03:48PM UTC coverage: 100.0%. Remained the same

Job # COMPILER=g++-4.9 CMAKE_OPTIONS=-DJSON_Coverage=ON MULTIPLE_HEADERS=ON

Build Type

Pull #1428

travis-ci

Committed by

web-flow

Commit Message

buildsystem: fix support for cmake older than 3.8

In e8b6b7ad, we relaxed the cmake version check down to 3.1, the first
version to expose target_compile_features().

However, an error while testing that change improperly concluded that
the change was OK. While target_compile_features() was indeed intriduced
in cmake 3.1, the actual feature we use it to test, cxx_std_11, was
really introduced only with cmake-3.8, which explained the actual
version that was requested before e8b6b7ad.

As Patrick noted, however, we can still convince cmake-3.1 to test
for C++11, by testing for an actual feature introduced in C++11, like
testing for cxx_range_for, which will instruct cmake to set the
appropriate C++11 options for the current compiler, which for gcc would
be adding -std=gnu++11.

Reported-by: Patrick Boettcher <patrick.boettcher@posteo.de>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Pull Request Pull Request #1428: buildsystem: fix support for cmake older than 3.8

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