Import SQLite 3.7.6.3.

third_party/sqlite/src/ext/icu/icu.c

Index: third_party/sqlite/src/ext/icu/icu.c
diff --git a/third_party/sqlite/src/ext/icu/icu.c b/third_party/sqlite/src/ext/icu/icu.c
index e99f1424b553057a781d86a0c9d7bd156aa657ca..ae28d70613ee4c66ebf1a48b6ea3c36496e0b6f1 100644
--- a/third_party/sqlite/src/ext/icu/icu.c
+++ b/third_party/sqlite/src/ext/icu/icu.c
@@ -247,6 +247,8 @@ static void icuRegexpFunc(sqlite3_context *p, int nArg, sqlite3_value **apArg){
   UBool res;
   const UChar *zString = sqlite3_value_text16(apArg[1]);
 
+  (void)nArg;  /* Unused parameter */
+
   /* If the left hand side of the regexp operator is NULL, 
   ** then the result is also NULL. 
   */
@@ -475,7 +477,7 @@ int sqlite3IcuInit(sqlite3 *db){
   int rc = SQLITE_OK;
   int i;
 
-  for(i=0; rc==SQLITE_OK && i<(sizeof(scalars)/sizeof(struct IcuScalar)); i++){
+  for(i=0; rc==SQLITE_OK && i<(int)(sizeof(scalars)/sizeof(scalars[0])); i++){
     struct IcuScalar *p = &scalars[i];
     rc = sqlite3_create_function(
         db, p->zName, p->nArg, p->enc, p->pContext, p->xFunc, 0, 0