Makefile: add dummy target for build.ninja dependencies

The dummy targets ensure that incremental build can be done after
deleting a meson.build file.

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

diff --git a/Makefile b/Makefile
index 76dbb917f5cd3085ad93cb634c14ba88b380ab53..fb9923ff220ab8290325c35780eeada518935b09 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -133,6 +133,7 @@ Makefile.ninja: build.ninja
 
 # A separate rule is needed for Makefile dependencies to avoid -n
 build.ninja: build.ninja.stamp
+$(build-files):
 build.ninja.stamp: meson.stamp $(build-files)
        $(NINJA) $(if $V,-v,) build.ninja && touch $@
 endif