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author | Niklas Hambüchen <mail@nh2.me> | 2019-07-01 19:04:03 +0200 |
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committer | Niklas Hambüchen <mail@nh2.me> | 2019-07-03 04:32:25 +0200 |
commit | 57daa860e8ed8432937aeecdcf6b9e952b0481b1 (patch) | |
tree | 475e9684b4131aaac924f5dc60563ba7f6c5a569 /mk/libraries.mk | |
parent | 1f97b16b1d9d93e083a4f1436ba002e073cbe379 (diff) |
autoconf: Fix C++17 detection not working on Ubuntu 16.04.
And probably many other distributions.
Until now, ./configure would fail silently printing a warning
./configure: line 4621: AX_CXX_COMPILE_STDCXX_17: command not found
and then continuing, later failing with a C++ #error saying that some C++11
feature isn't supported (it didn't even get to the C++17 features).
This is because older distributions don't come with the
`AX_CXX_COMPILE_STDCXX_17` m4 macro.
This commit vendors that macro accordingly.
Now ./configure complains correctly:
configure: error: *** A compiler with support for C++17 language features is required.
On Ubuntu 16.04, ./configure completes if a newer compiler is used, e.g. with
gcc-7 from https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/test
using:
./bootstrap.sh
./configure CXX=g++-7 --disable-doc-gen --with-boost=$(nix-build --no-link '<nixpkgs>' -A boost.dev)
Diffstat (limited to 'mk/libraries.mk')
0 files changed, 0 insertions, 0 deletions