[tracker] libtracker-data: Fix signed char comparison in SPARQL scanner

[Jürg Billeter <juergbi src gnome org>]

commit 40d7214ff1dbe08a718a7da1b6f6d5efd2d3d3b7
Author: Jürg Billeter <j bitron ch>
Date:   Fri Sep 3 17:07:39 2010 +0200

    libtracker-data: Fix signed char comparison in SPARQL scanner

 src/libtracker-data/tracker-sparql-scanner.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/libtracker-data/tracker-sparql-scanner.vala b/src/libtracker-data/tracker-sparql-scanner.vala
index d216ac0..5d592d4 100644
--- a/src/libtracker-data/tracker-sparql-scanner.vala
+++ b/src/libtracker-data/tracker-sparql-scanner.vala
@@ -645,7 +645,7 @@ public class Tracker.SparqlScanner : Object {
 							line++;
 							column = 1;
 							token_length_in_chars = 3;
-						} else if (current[0] <= 0x7f) {
+						} else if ((uchar) current[0] <= 0x7f) {
 							// ASCII
 							current++;
 							token_length_in_chars++;
@@ -700,7 +700,7 @@ public class Tracker.SparqlScanner : Object {
 						}
 					} else if (current[0] == '\n') {
 						break;
-					} else if (current[0] <= 0x7f) {
+					} else if ((uchar) current[0] <= 0x7f) {
 						// ASCII
 						current++;
 						token_length_in_chars++;