systemd: add dns-domain utils to systemd static library

dns-domain.c contains useful functions for manipulating DNS names.
Add it to the systemd static library we build in shared/, similarly to
what we already do for other utility files that were originally in
src/systemd/src/basic/.

Makefile.am

@@ -1659,6 +1659,7 @@ libsystemd_cppflags = \
 	-I$(srcdir)/shared/systemd/ \
 	-I$(srcdir)/shared/systemd/sd-adapt-shared \
 	-I$(srcdir)/shared/systemd/src/basic \
+	-I$(srcdir)/shared/systemd/src/shared \
 	$(LIBSYSTEMD_NM_CFLAGS) \
 	$(GLIB_CFLAGS) \
 	$(CODE_COVERAGE_CFLAGS) \
@@ -1802,6 +1803,8 @@ shared_systemd_libnm_systemd_shared_la_SOURCES = \
 	shared/systemd/src/basic/utf8.h \
 	shared/systemd/src/basic/util.c \
 	shared/systemd/src/basic/util.h \
+	shared/systemd/src/shared/dns-domain.c \
+	shared/systemd/src/shared/dns-domain.h \
 	$(NULL)
 
 shared_systemd_libnm_systemd_shared_la_LIBADD = \
@@ -1818,7 +1821,6 @@ src_libnm_systemd_core_la_cppflags = \
 	-I$(srcdir)/src \
 	-I$(srcdir)/src/systemd/sd-adapt-core \
 	-I$(srcdir)/src/systemd/src/systemd \
-	-I$(srcdir)/src/systemd/src/shared \
 	-I$(srcdir)/src/systemd/src/libsystemd-network \
 	-I$(srcdir)/src/systemd/src/libsystemd/sd-event \
 	-DNETWORKMANAGER_COMPILATION=NM_NETWORKMANAGER_COMPILATION_SYSTEMD \
@@ -1879,8 +1881,6 @@ src_libnm_systemd_core_la_SOURCES = \
 	src/systemd/src/libsystemd/sd-id128/id128-util.c \
 	src/systemd/src/libsystemd/sd-id128/id128-util.h \
 	src/systemd/src/libsystemd/sd-id128/sd-id128.c \
-	src/systemd/src/shared/dns-domain.c \
-	src/systemd/src/shared/dns-domain.h \
 	src/systemd/src/systemd/_sd-common.h \
 	src/systemd/src/systemd/sd-dhcp-client.h \
 	src/systemd/src/systemd/sd-dhcp-lease.h \

shared/meson.build

@@ -275,11 +275,13 @@ libnm_systemd_shared = static_library(
     'systemd/src/basic/tmpfile-util.c',
     'systemd/src/basic/utf8.c',
     'systemd/src/basic/util.c',
+    'systemd/src/shared/dns-domain.c',
     'systemd/nm-sd-utils-shared.c',
   ),
   include_directories: include_directories(
     'systemd/sd-adapt-shared',
     'systemd/src/basic',
+    'systemd/src/shared',
   ),
   dependencies: shared_nm_glib_aux_dep,
   c_args: [
@@ -292,6 +294,7 @@ libnm_systemd_shared_dep = declare_dependency(
   include_directories: include_directories(
     'systemd/sd-adapt-shared',
     'systemd/src/basic',
+    'systemd/src/shared',
   ),
   dependencies: [
     shared_nm_glib_aux_dep,

shared/systemd/src/shared/dns-domain.c

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: LGPL-2.1+ */
 
-#include "nm-sd-adapt-core.h"
+#include "nm-sd-adapt-shared.h"
 
 #if 0 /* NM_IGNORED */
 #if HAVE_LIBIDN2

src/systemd/meson.build

@@ -23,7 +23,6 @@ libnm_systemd_core = static_library(
     'src/libsystemd/sd-event/sd-event.c',
     'src/libsystemd/sd-id128/id128-util.c',
     'src/libsystemd/sd-id128/sd-id128.c',
-    'src/shared/dns-domain.c',
     'nm-sd.c',
     'nm-sd-utils-core.c',
   ),
@@ -33,7 +32,6 @@ libnm_systemd_core = static_library(
       'sd-adapt-core',
       'src/libsystemd-network',
       'src/libsystemd/sd-event',
-      'src/shared',
       'src/systemd',
     )
   ],