commit a81df1b68b656f2487f556240baf2af83e60ec6c
author Paolo Bonzini <pbonzini@redhat.com> Wed Aug 19 08:44:56 2020 -0400
committer Paolo Bonzini <pbonzini@redhat.com> Fri Aug 21 06:30:08 2020 -0400
tree eb98104c0a66b6a6d7675055d92c36b60d683796
parent 245dac4a1bef719d648e20c84bbf3dcaf50de988

libqemuutil, qapi, trace: convert to meson

This shows how to do some "computations" in meson.build using its array
and dictionary data structures, and also a basic usage of the sourceset
module for conditional compilation.

Notice the new "if have_system" part of util/meson.build, which fixes
a bug in the old build system was buggy: util/dbus.c was built even for
non-softmmu builds, but the dependency on -lgio was lost when the linking
was done through libqemuutil.a.  Because all of its users required gio
otherwise, the bug was hidden.  Meson instead propagates libqemuutil's
dependencies down to its users, and shows the problem.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>