meson: add a single .h file to shared libs with no sources

Otherwise stuff doesn't build on old Ubuntu with meson-0.42.1-1~xenial.

diff --git a/meson.build b/meson.build
index b1029434c5a2badeeb42efd59b5831c6d1248dcb..93b27be19c3b1e3b7d1eebe9d0a635fc621c987c 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -1437,6 +1437,7 @@ subdir('src/login')
 # libsystemd_sym_path = '@0@/@1@'.format(meson.current_source_dir(), libsystemd_sym)
 # libsystemd = shared_library(
 #         'systemd',
+#         'src/systemd/sd-id128.h', # pick a header file at random to work around old meson bug
 #         version : libsystemd_version,
 #         include_directories : includes,
 #         link_args : ['-shared',