sulogin: don't use {de,con}structor attributes

We're not Russian roulette players, so don't use such ugly things at all..

Reported-by:  Dave Reisner <d@falconindy.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

login-utils/sulogin-consoles.c

@@ -98,7 +98,6 @@ static uint32_t emergency_flags;
 # define MNT_PROCFS    0x0001
 # define MNT_DEVTMPFS  0x0002
 
-static __attribute__((__destructor__))
 void emergency_do_umounts(void)
 {
 	if (emergency_flags & MNT_DEVTMPFS)
@@ -107,7 +106,6 @@ void emergency_do_umounts(void)
 		umount2("/proc", MNT_DETACH);
 }
 
-static __attribute__((__constructor__))
 void emergency_do_mounts(void)
 {
 	struct stat rt, xt;
@@ -143,6 +141,12 @@ void emergency_do_mounts(void)
 		}
 	}
 }
+
+#else /* !USE_SULOGIN_EMERGENCY_MOUNT */
+
+void emergency_do_umounts(void) { }
+void emergency_do_mounts(void) { }
+
 #endif /* USE_SULOGIN_EMERGENCY_MOUNT */
 
 /*

login-utils/sulogin-consoles.h

@@ -21,6 +21,8 @@
  *
  * Author: Werner Fink <werner@suse.de>
  */
+#ifndef UTIL_LINUX_SULOGIN_CONSOLES_H
+#define UTIL_LINUX_SULOGIN_CONSOLES_H
 
 #include <sys/types.h>
 #include <stdint.h>
@@ -45,3 +47,8 @@ struct console {
 
 extern int detect_consoles(const char *device, int fallback,
 			   struct list_head *consoles);
+
+extern void emergency_do_umounts(void);
+extern void emergency_do_mounts(void);
+
+#endif /* UTIL_LINUX_SULOGIN_CONSOLES_H */

login-utils/sulogin.c

@@ -834,6 +834,10 @@ int main(int argc, char **argv)
 	mask_signal(SIGINT,  SIG_IGN, &saved_sigint);
 	mask_signal(SIGHUP,  SIG_IGN, &saved_sighup);
 
+
+	emergency_do_mounts();
+	atexit( emergency_do_umounts );
+
 	/*
 	 * See if we need to open an other tty device.
 	 */