Niklas Hambüchen 57daa860e8 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)		2019-07-03 04:32:25 +02:00
..
advanced-topics	diff hook: execute as the build user, and pass the temp dir	2019-05-12 13:17:26 -04:00
command-ref	nix-channel: Don't fetch binary-cache-url	2019-06-25 13:27:16 +02:00
expressions	Minor typo	2019-06-04 14:12:03 +02:00
figures
glossary	docs: Add IDs to important sections	2018-08-31 10:06:33 -04:00
images/callouts	Add docbook icons to the distribution	2014-04-09 14:52:43 +02:00
installation	autoconf: Fix C++17 detection not working on Ubuntu 16.04.	2019-07-03 04:32:25 +02:00
introduction	editline: wip	2018-10-29 08:44:58 -05:00
packages	Nix uses the CPP SDK, not Java	2019-06-20 14:47:45 +02:00
release-notes	Add 2.2 release notes	2019-01-10 21:02:09 +01:00
hacking.xml	Docs: Fix install prefix	2018-08-21 21:46:43 +02:00
local.mk	Add a new option to disable documentation generation at configure time	2016-09-20 14:34:43 +00:00
manual.xml	Create upgrade notes	2018-09-01 15:35:46 -04:00
nix-lang-ref.xml
quote-literals.xsl	Generate release notes again	2014-03-12 14:24:29 +01:00
schemas.xml
style.css	Update release notes	2018-02-19 20:38:53 +01:00