holy-build-box | System for building cross-distribution Linux binaries

The Holy Build Box environment is built on CentOS 7. This allows it to produce binaries that work on pretty much any x86_64 Linux distribution released since 2015. The only currently-prominent Linux distribution that the produced binaries may not run on, is Alpine Linux. See the FAQ entry. The environment is bare-bones with almost nothing installed. Besides the basics, only a compiler toolchain is provided. The toolchain is more recent than the one provided by CentOS 7.
GCC 9.3.1 (C and C++ support; in particular, C++14 is supported)
GNU make
autoconf 2.69
automake 1.13.4
libtool 2.4.2
pkg-config 0.29.2
ccache 3.7.12
CMake 3.19.3
Python 2.7.5 (+ setuptools and pip)
Tutorial 1: Basics
Tutorial 2: Compilation via a script
Tutorial 3: Static linking to dependencies
Tutorial 4: Tweaking the application's build system
Tutorial 5: Using library variants
Tutorial 6: Introducing additional static libraries
Tutorial 7: Verifying binary portability with libcheck
Environment structure
Library variants
Installing additional dependencies
Which system libraries are considered essential?
Securing the build environment
Security hardening binaries
Caching compilation results with ccache
Libcurl SSL certificate authorities
Linking C++ applications and libraries
No. Holy Build Box is mainly designed to compile headless applications such as CLI tools, servers and daemons. For example: Phusion Passenger, Nginx, Traveling Ruby. Supporting graphical applications such as those based on GTK, Qt, SDL, OpenGL etc is outside the scope of this project. This is however not a technical limitation, but merely a focus one. We, the Holy Build Box maintainers, have no interest in spending time to support graphical applications, but we welcome contributors who would like to take on this challenge. Contact us if you are interested, or submit a pull request.