diff options
| author | Niklas Hambüchen <mail@nh2.me> | 2019-07-01T17·04+0200 |
|---|---|---|
| committer | Niklas Hambüchen <mail@nh2.me> | 2019-07-03T02·32+0200 |
| commit | 57daa860e8ed8432937aeecdcf6b9e952b0481b1 (patch) | |
| tree | 475e9684b4131aaac924f5dc60563ba7f6c5a569 /doc/manual | |
| 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 'doc/manual')
| -rw-r--r-- | doc/manual/installation/prerequisites-source.xml | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/manual/installation/prerequisites-source.xml b/doc/manual/installation/prerequisites-source.xml index cbaa4d525274..e7bdcf966cf6 100644 --- a/doc/manual/installation/prerequisites-source.xml +++ b/doc/manual/installation/prerequisites-source.xml @@ -13,7 +13,7 @@ <listitem><para>Bash Shell. The <literal>./configure</literal> script relies on bashisms, so Bash is required.</para></listitem> - <listitem><para>A version of GCC or Clang that supports C++14.</para></listitem> + <listitem><para>A version of GCC or Clang that supports C++17.</para></listitem> <listitem><para><command>pkg-config</command> to locate dependencies. If your distribution does not provide it, you can get |