1 files changed, 4 insertions, 5 deletions

diff --git a/dutmp.c b/dutmp.c
index a75a6e392..26253b445 100644
--- a/dutmp.c
+++ b/dutmp.c
@@ -41,11 +41,9 @@ extern int dutmp_main(int argc, char **argv)
                 }
         }
 
-/* Kludge around the fact that the binary format for utmp has changed, and the
- * fact the stupid libc doesn't have a reliable #define to announce that libc5
- * is being used.  sigh.
- */
-#if ! defined __GLIBC__ || defined __UCLIBC__
+/* Kludge around the fact that the binary format for utmp has changed. */
+#if __GNU_LIBRARY__ < 5
+        /* Linux libc5 */
         while (read(file, (void*)&ut, sizeof(struct utmp))) {
                 printf("%d|%d|%s|%s|%s|%s|%s|%lx\n",
                                 ut.ut_type, ut.ut_pid, ut.ut_line,
@@ -54,6 +52,7 @@ extern int dutmp_main(int argc, char **argv)
                                 (long)ut.ut_addr);
         }
 #else
+        /* Glibc, uClibc, etc */
         while (read(file, (void*)&ut, sizeof(struct utmp))) {
                 printf("%d|%d|%s|%s|%s|%s|%d|%d|%ld|%ld|%ld|%x\n",
                 ut.ut_type, ut.ut_pid, ut.ut_line,