add INIT_G()'s. No code changes.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

util-linux/mdev.c

@@ -173,6 +173,8 @@ struct globals {
 	char *subsystem;
 } FIX_ALIASING;
 #define G (*(struct globals*)&bb_common_bufsiz1)
+#define INIT_G() do { } while (0)
+
 
 /* Prevent infinite loops in /sys symlinks */
 #define MAX_SYSFS_DEPTH 3
@@ -180,6 +182,7 @@ struct globals {
 /* We use additional 64+ bytes in make_device() */
 #define SCRATCH_SIZE 80
 
+
 /* Builds an alias path.
  * This function potentionally reallocates the alias parameter.
  * Only used for ENABLE_FEATURE_MDEV_RENAME
@@ -613,6 +616,8 @@ int mdev_main(int argc UNUSED_PARAM, char **argv)
 {
 	RESERVE_CONFIG_BUFFER(temp, PATH_MAX + SCRATCH_SIZE);
 
+	INIT_G();
+
 	/* We can be called as hotplug helper */
 	/* Kernel cannot provide suitable stdio fds for us, do it ourself */
 	bb_sanitize_stdio();

util-linux/mount.c

@@ -339,6 +339,7 @@ enum { GETMNTENT_BUFSIZE = COMMON_BUFSIZE - offsetof(struct globals, getmntent_b
 #endif
 #define fslist            (G.fslist           )
 #define getmntent_buf     (G.getmntent_buf    )
+#define INIT_G() do { } while (0)
 
 #if ENABLE_FEATURE_MTAB_SUPPORT
 /*
@@ -1944,6 +1945,8 @@ int mount_main(int argc UNUSED_PARAM, char **argv)
 
 	IF_DESKTOP(int nonroot = ) sanitize_env_if_suid();
 
+	INIT_G();
+
 	// Parse long options, like --bind and --move.  Note that -o option
 	// and --option are synonymous.  Yes, this means --remount,rw works.
 	for (i = j = 1; argv[i]; i++) {

util-linux/swaponoff.c

@@ -48,6 +48,7 @@ struct globals {
 #else
 #define g_flags 0
 #endif
+#define INIT_G() do { } while (0)
 
 static int swap_enable_disable(char *device)
 {
@@ -111,6 +112,8 @@ int swap_on_off_main(int argc UNUSED_PARAM, char **argv)
 {
 	int ret;
 
+	INIT_G();
+
 #if !ENABLE_FEATURE_SWAPON_PRI
 	ret = getopt32(argv, "a");
 #else