Make testrunner buildable on Ubuntu noble LTS

[mbenke]

Building testrunner with cmake ran into several problems on Ubuntu 24.04 LTS.
This PR is an attempt to fix these problems. Needs thorough review though.

We should also think how to integrate building the testrunner in our CI (Nix?)

[clonker]

Most of these changes shouldn't be necessary. I added a top-level CMakeLists.txt which takes care of all of it (and uses a submodule for nlohmann_json).

solcore/CMakeLists.txt

Lines 1 to 17 in 3655b7d

	cmake_minimum_required(VERSION 3.13)
	project(solcore VERSION 0.0 LANGUAGES C CXX)
	option(IGNORE_VENDORED_DEPENDENCIES "Ignore libraries provided as submodules of the repository" OFF)
	mark_as_advanced(IGNORE_VENDORED_DEPENDENCIES)
	if (NOT IGNORE_VENDORED_DEPENDENCIES)
	add_subdirectory(
	${CMAKE_SOURCE_DIR}/deps/nlohmann_json
	EXCLUDE_FROM_ALL
	)
	else()
	find_package(nlohmann_json REQUIRED)
	endif()
	set(CMAKE_CXX_STANDARD 23)
	add_subdirectory(test/testrunner)

The only one which could be required is the CXX_STANDARD one.

[mbenke]

@clonker This helps a bit, but not all the way:

ben@tux:~/work/solcore$ cmake -S . -B build
-- The C compiler identification is GNU 14.3.0
-- The CXX compiler identification is GNU 14.3.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /nix/store/95k9rsn1zsw1yvir8mj824ldhf90i4qw-gcc-wrapper-14.3.0/bin/gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /nix/store/95k9rsn1zsw1yvir8mj824ldhf90i4qw-gcc-wrapper-14.3.0/bin/g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Using the multi-header code from /home/ben/work/solcore/deps/nlohmann_json/include/
CMake Error at test/testrunner/CMakeLists.txt:11 (find_package):
  Could not find a package configuration file provided by "Boost" with any of
  the following names:

    BoostConfig.cmake
    boost-config.cmake

  Add the installation prefix of "Boost" to CMAKE_PREFIX_PATH or set
  "Boost_DIR" to a directory containing one of the above files.  If "Boost"
  provides a separate development package or SDK, be sure it has been
  installed.


-- Configuring incomplete, errors occurred!

[clonker]

@clonker This helps a bit, but not all the way:

  Could not find a package configuration file provided by "Boost" with any of
  the following names:

    BoostConfig.cmake
    boost-config.cmake

  Add the installation prefix of "Boost" to CMAKE_PREFIX_PATH or set
  "Boost_DIR" to a directory containing one of the above files.  If "Boost"
  provides a separate development package or SDK, be sure it has been
  installed.


-- Configuring incomplete, errors occurred!

it's simply asking for a boost installation on the system :)

[mbenke]

Do you know how to add Boost to flake.nix then so that we may integrate the testrunner with our CI?

[mbenke]

Closing in favour of #276