spreadsheet-reader: Avoid 'unused variable' warnings.

If ODS and GNM support are both unavailable then GCC warns here.

diff --git a/src/data/spreadsheet-reader.c b/src/data/spreadsheet-reader.c
index 76dbe8cd11f2fdec1f8f35f8eb2ed63f6d81173a..294b93cec5d3f5190d5bddde902ea6e0c0d273d5 100644 (file)
--- a/src/data/spreadsheet-reader.c
+++ b/src/data/spreadsheet-reader.c
@@ -53,7 +53,8 @@ spreadsheet_destroy (struct spreadsheet *s)
 
 
 struct casereader * 
-spreadsheet_make_reader (struct spreadsheet *s, const struct spreadsheet_read_options *opts)
+spreadsheet_make_reader (struct spreadsheet *s UNUSED,
+                         const struct spreadsheet_read_options *opts UNUSED)
 {
 #ifdef ODS_READ_SUPPORT
   if ( s->type == SPREADSHEET_ODS)