[PGPRO-6780] Fix Windows warnings

Author: kovdb75

src/rum.h

@@ -868,9 +868,9 @@ extern Datum rum_anyarray_distance(PG_FUNCTION_ARGS);
 
 
 /* GUC parameters */
-extern PGDLLIMPORT int		RumFuzzySearchLimit;
-extern PGDLLIMPORT float8	RumArraySimilarityThreshold;
-extern PGDLLIMPORT int		RumArraySimilarityFunction;
+extern int		RumFuzzySearchLimit;
+extern float8	RumArraySimilarityThreshold;
+extern int		RumArraySimilarityFunction;
 
 
 /*

src/rum_ts_utils.c

@@ -172,7 +172,7 @@ typedef struct
 	DocRepresentation *end;
 } Extention;
 
-static float weights[] = {1.0/0.1f, 1.0/0.2f, 1.0/0.4f, 1.0/1.0f};
+static float weights[] = {1.0f/0.1f, 1.0f/0.2f, 1.0f/0.4f, 1.0f/1.0f};
 
 /* A dummy WordEntryPos array to use when haspos is false */
 static WordEntryPosVector POSNULL = {

src/rumsort.c

@@ -208,7 +208,10 @@ rum_item_size(RumTuplesortstate * state)
 	else if (state->copytup == copytup_rumitem)
 		return sizeof(RumScanItem);
 	else
+	{
 		elog (FATAL, "Unknown RUM state");
+		return 0;
+	}
 }
 
 static void