Paolo Bonzini <pbonz...@redhat.com> writes: > Hi all, > > lately I have been thinking of converting the QEMU build system to > Meson. Meson is a relatively new build system that can replace > Autotools or hand-written Makefiles such as QEMU; as a die-hard > Autotools fan, I must say that Meson is by far better than anything else > that has ever tried to replace Autotools, and actually has the potential > to do so. > > Advantages of Meson that directly matter for QEMU include: > > - build definitions in a very readable and user friendly DSL, which > supports looping and conditions. > > - ability to introspect the build definitions so that you can find out > what is built without building it (the DSL is not Turing complete and > most objects in it are immutable, so it cannot be abused that much :)) > > - support for a non-recursive build from per-subdirectory input (similar > to Makefile.objs)
Could Meson build the $(TARGET_DIRS) non-recursively? I'm asking because I find the make recursion there annoying. As usual with recursion, we have to dumb down dependencies: if anything made by the recursion needs X, then everything does. If making X fails, we don't recurse. Defeats -k. > - ease of distributing a full copy of Meson to support distros that ship > an older version (no dependencies apart from Python 3.5). At 40000 > lines of Python, Meson is relatively small. [...]
