all: move STRLEN() macro to global header nm-utils-internal.h

https://bugzilla.gnome.org/show_bug.cgi?id=741651
(cherry picked from commit 422fbf48b9)

include/nm-utils-internal.h

@@ -82,6 +82,9 @@
 
 /********************************************************/
 
+/* macro to return strlen() of a compile time string. */
+#define STRLEN(str)     ( sizeof ("" str) - 1 )
+
 #define NM_IN_SET(x, y, ...)                                    \
     ({                                                          \
         const typeof(y) _y = (y);                               \

src/NetworkManagerUtils.h

@@ -51,9 +51,6 @@ nm_utils_ip6_route_metric_normalize (guint32 metric)
 
 int nm_spawn_process (const char *args);
 
-/* macro to return strlen() of a compile time string. */
-#define STRLEN(str)     ( sizeof ("" str) - 1 )
-
 /* check if @flags has exactly one flag (@check) set. You should call this
  * only with @check being a compile time constant and a power of two. */
 #define NM_FLAGS_HAS(flags, check)  \

src/dhcp-manager/nm-dhcp-dhclient-utils.c

@@ -32,6 +32,7 @@
 #include "nm-platform.h"
 #include "NetworkManagerUtils.h"
 #include "gsystem-local-alloc.h"
+#include "nm-utils-internal.h"
 
 #define CLIENTID_TAG            "send dhcp-client-identifier"
 

src/dhcp-manager/tests/test-dhcp-dhclient.c

@@ -32,6 +32,7 @@
 #include "nm-utils.h"
 #include "nm-ip4-config.h"
 #include "nm-platform.h"
+#include "nm-utils-internal.h"
 
 #define DEBUG 1