[gnumeric] compilation: fix warnings.

[Morten Welinder <mortenw src gnome org>]

commit b5c10c63b645cf5ee29b1fa83f4fc970b0577c6a
Author: Morten Welinder <terra gnome org>
Date:   Wed Oct 28 21:42:28 2009 -0400

    compilation: fix warnings.

 src/sheet-filter.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/src/sheet-filter.c b/src/sheet-filter.c
index f4b6613..69ffc8e 100644
--- a/src/sheet-filter.c
+++ b/src/sheet-filter.c
@@ -665,8 +665,6 @@ gnm_filter_ref (GnmFilter *filter)
 void
 gnm_filter_unref (GnmFilter *filter)
 {
-	unsigned i;
-
 	g_return_if_fail (filter != NULL);
 
 	filter->ref_count--;
@@ -698,7 +696,7 @@ gnm_filter_remove (GnmFilter *filter)
 	}
 	filter->sheet = NULL;
 
-	for (i = 0 ; i < filter->fields->len ; i++) {
+	for (i = 0 ; i < (int)filter->fields->len ; i++) {
 		SheetObject *so = g_ptr_array_index (filter->fields, i);
 		sheet_object_clear_sheet (so);
 		g_object_unref (so);