distcc vs Qbs

distcc is free software that distributes C, C++, Objective C, and Objective C++ builds across networked machines. It sends preprocessed source code to machines running the distccd daemon and a suitable compiler. The project says distributed builds should match local results and are usually faster than compiling locally. distcc works with GNU Make, SCons, and other parallel build tools. Machines with different processors or operating systems can participate when suitable cross-compilers are installed. GCC is fully supported; Intel icc is somewhat compatible, and the FAQ reports Sun’s proprietary compiler working in C mode. The project is developed on GNU/Linux and reports use on several Unix-like systems, Cygwin, and BSD/OS; listed platforms include Linux, macOS, self-hosted use, and Windows. TCP transmissions are neither encrypted nor signed, while SSH connections are authenticated and encrypted. The FAQ says distcc does not automatically find the best work distribution. Related tools cover server selection, control, cross-compilation, and monitoring.

Qbs is a build automation tool for managing software projects across multiple platforms. Projects can use it regardless of programming language, toolkit, or libraries, and its declarative model lets them describe build tasks and dependencies without setting the build order. The manual lists correct, fast incremental builds and an extensible architecture among its features. Qbs documents built-in support for Windows, Linux, macOS, Android, iOS, tvOS, watchOS, QNX, and FreeBSD, plus cross-compilation. It can be used with Qt Creator and Visual Studio Code through the Qbs session feature, and it can generate Clang compilation databases. Project generation for Visual Studio, IAR Embedded Workbench, and Keil uVision is available but described as experimental. Binaries are available for Windows, macOS, Linux, and FreeBSD, or Qbs can be built locally from source. The Qbs plan costs nothing. Its library and tools are available under commercial licenses, LGPL version 3, and GPL version 2. The Makefile generator will not create a Makefile if the source, build, or install root directory contains spaces; other UNIX-like systems may work but are not regularly tested or officially supported.