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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
.github Add .github/FUNDING.yml 2019-05-31 22:19:46 -04:00
config update config/config.{sub,guess} 2018-08-13 20:00:17 +00:00
corepkgs nix-channel: Don't fetch binary-cache-url 2019-06-25 13:27:16 +02:00
doc/manual autoconf: Fix C++17 detection not working on Ubuntu 16.04. 2019-07-03 04:32:25 +02:00
m4 autoconf: Fix C++17 detection not working on Ubuntu 16.04. 2019-07-03 04:32:25 +02:00
maintainers Fix release script 2019-04-15 19:17:17 +02:00
misc nix-daemon: add variable to disable fork safety 2019-02-09 20:35:30 +01:00
mk Support --disable-shared flag. 2019-02-13 00:03:10 -05:00
perl perl/configure.ac: fix for new version location too 2019-03-25 09:18:30 +01:00
scripts Merge pull request #2746 from bjornfor/install-multi-user-defaults 2019-06-17 10:17:40 +02:00
src Fix http2 = false having no effect. Fixes #2971. 2019-06-28 20:44:46 +05:30
tests Fix abort in fromTOML 2019-06-24 17:09:09 +02:00
.dir-locals.el Add .dir-locals.el for Emacs 2016-01-28 11:12:04 +01:00
.editorconfig Add .editorconfig 2017-06-05 22:57:28 +01:00
.gitignore Treat plain derivation paths in context as normal paths. 2019-01-13 11:29:55 -05:00
.travis.yml Test the installer 2017-07-14 12:11:04 -04:00
.version version -> .version, avoid conflict with C++20 <version> 2019-03-25 09:18:30 +01:00
bootstrap.sh bootstrap: Simplify & make more robust. 2011-09-06 12:11:05 +00:00
configure.ac autoconf: Fix C++17 detection not working on Ubuntu 16.04. 2019-07-03 04:32:25 +02:00
COPYING * Change this to LGPL to keep the government happy. 2006-04-25 16:41:06 +00:00
local.mk Merge all nix-* binaries into nix 2018-10-26 12:54:00 +02:00
Makefile Merge all nix-* binaries into nix 2018-10-26 12:54:00 +02:00
Makefile.config.in Support --disable-shared flag. 2019-02-13 00:03:10 -05:00
nix.spec.in Attempt to fix the RPM build 2018-07-31 14:03:19 +02:00
README.md Fix minor grammatical nitpick ("it's" vs. "its") in README.md. 2017-03-22 10:11:23 -04:00
release-common.nix release-common: fix build with config.allowAliases = false 2019-05-30 18:08:33 +03:00
release.nix fetchGit -> fetchTarball 2019-05-17 22:28:03 +02:00
shell.nix fetchGit -> fetchTarball 2019-05-17 22:28:03 +02:00

README.md

Nix, the purely functional package manager

Nix is a new take on package management that is fairly unique. Because of its purity aspects, a lot of issues found in traditional package managers don't appear with Nix.

To find out more about the tool, usage and installation instructions, please read the manual, which is available on the Nix website at http://nixos.org/nix/manual.

Contributing

Take a look at the Hacking Section of the manual. It helps you to get started with building Nix from source.

License

Nix is released under the LGPL v2.1

This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit.