Add Basic CMake Support, Fix Conversion Test Compilation

[cullvox]

In one of my projects I'm working on it's useful to have support for CMake. I am using CPM, and to easily add a small library like this I think it might be useful to have some CMake support. What I added is just an interface library for the header and also compiling the test cases.

Usage of the overload template helper in the conversion test, was causing a compiler error when using AppleClang.

[wx257osn2]

@cullvox

• Please remove .gitignore , because:
  • clangd is your option, so it should be ignored with your own $XDG_CONFIG_HOME/git/ignore instead of project one
  • build is not necessarily specified as build directory by cmake
• Please add EOL on EOF of CMakeLists.txt
• Would you provide a simple CMakeLists.txt example here of how it would be used from CPM when this CMakeLists.txt will be added? I don't use cmake usually, so I can't imagine how it will be.

[cullvox]

cmake_minimum_required(VERSION 3.14)
project(qoixx_sample LANGUAGES CXX)

include(CMake/CPM.cmake) # CPM module

CPMAddPackage("gh:wx257osn2/qoixx@0.1.7")

add_executable(qoixx_sample "main.cpp")
target_link_libraries(qoixx_sample PUBLIC qoixx::qoixx)

Here's an example CMake for this.

[wx257osn2]

@cullvox Sorry to late for reply, I tried to check the behavior. It seems that it works well for CPM (without above issue), but when we build qoixx with CMake, 3 binaries (qoibench , qoiconv , and qoitest) are generated on the build directory. Currently Makefile generates binaries on bin/ directory, so we can copy it to our own $PATH , but it is hard to understand to what binaries to copy to where with current CMakeLists.txt . Would you support installing (make install) for qoiconv and qoibench ? (qoitest is not needed to support this)

[cullvox]

@wx257osn2 Hi, I'm providing a late reply too. I added an install for the qoiconv and qoibench targets. I tested this on Windows and Ubuntu. Using cmake --install {build folder} will install the files to the bin folder, or you could go into the CMake build folder and call make install and it works the same way. I think this is what you were asking for — if not I'll gladly add/change anything!

[wx257osn2]

@cullvox Thank you for working it!

• Would you make CMAKE_INSTALL_PREFIX to behave correctly?
  • After this changing, cmake --install {build folder} without CMAKE_INSTALL_PREFIX may install them into /usr/local (on Linux environment) or something like that IMO
  • Currently there is no install target in Makefile to refer (sorry), but I want CMake version similar to PREFIX=/path/to make install .

• Yikes, I'd missed to send review comment (it was "pending" status... (◞‸◟) ). I sent it, so please fix above comment.

  • (without above issue)

    I'd believed that I'd already sent it :sob: