--- a/configure.in
+++ b/configure.in
@@ -279,6 +279,9 @@ dnl ************************************
 dnl Checks for library functions
 dnl ***********************************************************************
 
+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
@@ -207,6 +207,9 @@
 /* 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
 
--- a/backend/pieusb_buffer.c
+++ b/backend/pieusb_buffer.c
@@ -112,6 +112,11 @@
 #endif
 #endif
 
+#ifndef HAVE_MKOSTEMP
+/* uclibc might not implement mkostemp GNU extension */
+#define mkostemp(template, flags) mkstemp(template)
+#endif
+
 static void buffer_update_read_index(struct Pieusb_Read_Buffer* buffer, int increment);
 
 /* READER */