Build2 seems to have the right idea.

1. conan-center-index

   1 42 1,194 9.9 Python

   Recipes for the ConanCenter repository

   

   Are you aware of the existing main package managers? vcpkg (1800 packages available) and Conan (claims that 1000 packages are available but the list stops at letter T so I suspect it's cut off).

2. SaaSHub

   www.saashub.com sponsored

   SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

   

3. Vcpkg

   2 148 27,339 10.0 CMake

   C++ Library Manager for Windows, Linux, and MacOS

   

   ah libpq the perl monster on windows generating msbuild files. I wonder if the autotools/configure script could be used on windows instead. The vcpkg recipe is also horrendous: https://github.com/microsoft/vcpkg/blob/master/ports/libpq/portfile.cmake and even requires conditional patching depending on the config relaese/debug

4. conan

   3 113 9,478 9.7 Python

   Conan - The open-source C and C++ package manager

   

   Are you aware of the existing main package managers? vcpkg (1800 packages available) and Conan (claims that 1000 packages are available but the list stops at letter T so I suspect it's cut off).

5. cmake-init-clang-on-windows

   4 9 9 0.0 CMake

   Discontinued Using LLVM Clang on Windows with CMake

   From a quick searching I found what it takes to compile a Windows executable on macOS, these flags could be very easily turned into a toolchain file and the situation would be similar on Linux as well.

6. pkgconf

   5 1 0 0.0 C

   build2 packages for pkgconf toolkit (by build2-packaging)

   

7. pkgconf

   6 7 642 9.8 C

   package compiler and linker metadata toolkit

   

8. sol2

   7 1 0 5.7 C++

   build2 Package Repository for sol2 (by build2-packaging)

   

   Here is a simple example, Sol2 which requires lua: https://github.com/build2-packaging/sol2

9. spdlog

   8 1 0 6.5 Ruby

   build2 package of the spdlog library (by build2-packaging)

   

   Platform dependence: They seem to involve bizarrely low-level and compiler-specific details. Just look at this from the spdlog recipe:

10. spdlog

    9 50 29,457 8.1 C++

    Fast C++ logging library.

    

    I've also seen things in build2 recipes involving gcc or MSVC compiler switches. Admittedly, the CMake script for spdlog is also quite complex. But I think that's because it's covering a lot of possibilities of how its dependencies are built that build2, by the sounds of it, ought not have to worry about. CMake gives you platform independent ways to set features on targets so that, in theory at least, you write your build script once and it automatically works across multiple platforms.

11. postgresql

    10 1 0 0.4 C

    build2 packages for PostgreSQL database management system (by build2-packaging)

    

    Scattered files: In CMake, it's quite common for the build script to be split over multiple files. Most commonly it's a top-level CMakeLists.txt, then another for each subdirectory (often corresponding to a target), plus some utilities in a cmake/ subdirectory. But that is nothing compared to build2. Just look at the build script repo for libpq. What on earth is going on? There are a few top-level files, plus a submodule for the upstream (fair enough), but then absolutely heaps of subdirectories mirroring pq directories, plus softlinks into the upstream submodule. There are others that actually look worse to me but I don't feel comfortable linking to them because I'm not sure what's going on!

12. Ease

    11 1 4 0.0 C++

    Ease is a Build System for C++ that strive to acheive simplicity. There is no dependancies, no installation you drop off Ease.hpp in your project and can start writing a build function. The build function will be called and the build will start according to the return value of this function. (by Tackwin)

    

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