diff -ur uptimed-0.3.16/configure.ac uptimed-0.3.16.modified/configure.ac
--- uptimed-0.3.16/configure.ac	2009-01-02 00:46:00.000000000 +0100
+++ uptimed-0.3.16.modified/configure.ac	2011-11-01 22:45:58.000000000 +0100
@@ -31,6 +31,9 @@
   *-darwin*)
     AC_DEFINE(PLATFORM_BSD, 1, [Define if you are compiling for *BSD])
     ;;
+  *-gnu*)
+    AC_DEFINE(PLATFORM_GNU, 1, [Define if you are compiling for *GNU])
+    ;;
   *)
     AC_DEFINE(PLATFORM_UNKNOWN, 1, [Define if you are compiling for an unknown system])
     ;;
@@ -38,6 +41,7 @@
 
 AC_REPLACE_FUNCS(getopt)
 AC_CHECK_HEADERS(getopt.h)
+AC_CHECK_FUNCS([getdtablesize])
 
 AC_OUTPUT([Makefile libuptimed/Makefile src/Makefile man/Makefile etc/Makefile uptimed.spec])
 
diff -ur uptimed-0.3.16/src/uptimed.c uptimed-0.3.16.modified/src/uptimed.c
--- uptimed-0.3.16/src/uptimed.c	2009-01-02 00:46:00.000000000 +0100
+++ uptimed-0.3.16.modified/src/uptimed.c	2011-11-01 23:00:14.000000000 +0100
@@ -175,7 +175,7 @@
 
 void bg(void)
 {
-	int i;
+	int i, fdmax;
 	/* Simple fork to run proces in the background. */
 	switch(fork())
 	{
@@ -192,7 +192,15 @@
 	}
 
 	/* Close probably all file descriptors */
-	for (i = 0; i<NOFILE; i++)
+#ifdef HAVE_GETDTABLESIZE
+	fdmax = getdtablesize();
+#else
+	fdmax = sysconf(_SC_OPEN_MAX);
+#endif
+	if (fdmax <= 0)
+		fdmax = 3;
+
+	for (i = 0; i < fdmax; i++)
 		close(i);
 
 	/* Be nice to umount */
diff -ur uptimed-0.3.16/debian/patches/series uptimed-0.3.16.modified/debian/patches/series
--- uptimed-0.3.16/debian/patches/series	2011-11-01 16:13:22.000000000 +0100
+++ uptimed-0.3.16.modified/debian/patches/series	2011-11-01 16:24:54.000000000 +0100
@@ -1,3 +1,4 @@
+fix_FTBFS4Hurd.patch
 no-bootid-file-on-linux.patch
 uprecords-cgi-header-path.patch
 uprecords-cgi-header-text-color.patch