diff --git a/configure.ac b/configure.ac
index 85cfff1c7..eb51c7119 100644
--- a/configure.ac
+++ b/configure.ac
@@ -176,19 +176,6 @@ dnl has it in libc), or if libdl is needed to get it.
 AC_CHECK_FUNC([dlopen], [],
 	AC_CHECK_LIB([dl], [dlopen], DLOPEN_LIBS="-ldl"))
 
-case $host_os in
-    linux*|darwin*)
-	AC_DEFINE(HAVE_URANDOM, 1, [Has /dev/urandom]) ;;
-    freebsd*|netbsd*|openbsd*|dragonfly*)
-	AC_DEFINE(HAVE_URANDOM, 1, [Has /dev/urandom]) ;;
-    solaris*)
-	# Solaris 8 with patches, or Solaris 9 or later have /dev/urandom
-	if test -r /dev/urandom ; then
-	   AC_DEFINE(HAVE_URANDOM, 1, [Has /dev/urandom])
-	fi ;;
-    *) ;;
-esac
-
 dnl Checks for library functions.
 AC_FUNC_VPRINTF
 AC_CHECK_FUNCS([geteuid getuid link memmove memset mkstemp strchr strrchr \
diff --git a/os/auth.c b/os/auth.c
index dab4f60bd..a852e1c3b 100644
--- a/os/auth.c
+++ b/os/auth.c
@@ -314,8 +314,6 @@ GenerateAuthorization(
     return -1;
 }
 
-#ifdef HAVE_URANDOM
-
 void
 GenerateRandomData (int len, char *buf)
 {
@@ -326,45 +324,4 @@ GenerateRandomData (int len, char *buf)
     close(fd);
 }
 
-#else /* !HAVE_URANDOM */
-
-/* A random number generator that is more unpredictable
-   than that shipped with some systems.
-   This code is taken from the C standard. */
-
-static unsigned long int next = 1;
-
-static int
-xdm_rand(void)
-{
-    next = next * 1103515245 + 12345;
-    return (unsigned int)(next/65536) % 32768;
-}
-
-static void
-xdm_srand(unsigned int seed)
-{
-    next = seed;
-}
-
-void
-GenerateRandomData (int len, char *buf)
-{
-    static int seed;
-    int value;
-    int i;
-
-    seed += GetTimeInMillis();
-    xdm_srand (seed);
-    for (i = 0; i < len; i++)
-    {
-	value = xdm_rand ();
-	buf[i] ^= (value & 0xff00) >> 8;
-    }
-
-    /* XXX add getrusage, popen("ps -ale") */
-}
-
-#endif /* HAVE_URANDOM */
-
 #endif /* XCSECURITY */