use gnulib:: qualifiers for more stdio functions * input.cc (gnu_readline): Use gnulib::fflush instead of fflush. * sparse-util.cc (SparseCholPrint): Likewise. * kpse.cc (DEBUGF_END, hash_lookup, kpse_element_dirs): Likewise. * cmd-edit.cc (default_command_editor::do_readline): Likewise. * c-file-ptr-stream.cc (c_file_ptr_buf::flush): Likewise. (c_file_ptr_buf::xsgetn): Use gnulib::fread instead of fread. (c_file_ptr_buf::underflow_common): Use gnulib::fgetc instead of fgetc.

--- a/liboctave/sparse-util.cc
+++ b/liboctave/sparse-util.cc
@@ -52,7 +52,7 @@
   va_list args;
   va_start (args, fmt);
   int ret = gnulib::vfprintf (stderr, fmt, args);
-  fflush (stderr);
+  gnulib::fflush (stderr);
   va_end (args);
   return ret;
 }