--- a/configure.ac
+++ b/configure.ac
@@ -280,6 +280,9 @@ AS_IF([test x != x$ALLOCA],
       [LTALLOCA=`echo "$ALLOCA" | sed 's/\.o$//; s/\.obj$//'`.lo])
 AC_SUBST(LTALLOCA)
 
+dnl Check mkostemp (missing in uclibc)
+AC_CHECK_FUNC(mkostemp)
+
 dnl Define SOCKET_LIB, NSL_LIB, BIND_LIB, and RESOLV_LIB  when required 
 dnl for functions we use.
 AC_CHECK_FUNC(gethostbyaddr,, [AC_CHECK_LIB(bind, gethostbyaddr, BIND_LIB="-lbind")])
--- a/include/sane/config.h.in
+++ b/include/sane/config.h.in
@@ -229,6 +229,9 @@
 /* Define to 1 if you have the `mkdir' function. */
 #undef HAVE_MKDIR
 
+/* Define to 1 if you have a working `mkostemp' function. */
+#undef HAVE_MKOSTEMP
+
 /* Define to 1 if you have a working `mmap' system call. */
 #undef HAVE_MMAP
 
