Add gulrak/filesystem to auxil, expose via zeek::filesystem

This adds https://github.com/gulrak/filesystem as a submodule into auxil
as a compiler-independent std::filesystem replacement.

The ghc::filesystem namespace is exposed as zeek::filesystem in util.h.

In the build directory, we add 3rdparty/ghc as a symlink to auxil in
order to support building from the build tree.

    <build_dir>/src/3rdparty/ghc -> /path/to/zeek/src/auxil/filesystem/include/ghc

In the installation tree, the headers are installed into include/zeek/3rdparty:

    <install_dir>/include/zeek/3rdparty/ghc

Note, this differs from how we approached rapidjson which isn't included
using a zeek/3rdparty and instead requires an additional include path of
the following form for external plugins to find and use it.

    <install_dir>/include/zeek/3rdparty/rapidjson/include/

We diverge from this approach. Placing ghc directly into 3rdparty appears
nicer and avoids changing external components (DynamicPlugin.cmake / spicyc)
This commit is contained in:
Arne Welzel 2022-06-30 11:34:39 +02:00
parent d506806a22
commit b77f5fa14c
7 changed files with 66 additions and 0 deletions

View file

@ -533,6 +533,32 @@ POSSIBILITY OF SUCH DAMAGE.
==============================================================================
%%% auxil/filesystem
==============================================================================
Copyright (c) 2018, Steffen Schümann <s.schuemann@pobox.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
==============================================================================
%%% auxil/highwayhash
==============================================================================