$ make -C build/arm-clang/ -j8 make: Entering directory '/home/petmay01/linaro/qemu-from-laptop/qemu/build/arm-clang' [1/23] Generating qemu-version.h with a meson_exe.py custom command make: Leaving directory '/home/petmay01/linaro/qemu-from-laptop/qemu/build/arm-clang' $ touch tests/qtest/meson.build $ make -C build/arm-clang/ -j8 make: Entering directory '/home/petmay01/linaro/qemu-from-laptop/qemu/build/arm-clang' /usr/bin/ninja build.ninja && touch build.ninja.stamp [0/1] Regenerating build files. The Meson build system [...]
It then goes on to rebuild hundreds or thousands of files, most of which are not even in tests/. (Oddly, the exact set of files recompiled seems to vary from run to run.) Forcing a full rebuild of all of QEMU seems rather excessive when the change was likely "add a new test case"... thanks -- PMM
