update yaya and fix API

README.md

@@ -6,6 +6,7 @@ Automatically curate open source yara rules and run scans
 
 ## Installation
 `go get github.com/cooperq/yaya`
+
 `go install github.com/cooperq/yaya`
 
 ### Dependencies 
@@ -14,6 +15,9 @@ Yaya depends on the following packages outside the standard library:
 * https://github.com/hillu/go-yara
 * https://github.com/jinzhu/gorm
 
+You must also install the yara4 C libraries. We reccomend you install these from source: 
+https://yara.readthedocs.io/en/stable/gettingstarted.html
+
 
 ## Running
     yaya update

yaya.go

@@ -351,7 +351,8 @@ func runScan(scanPath string) {
 			log.Panicf("Failed to compile rules: %s", err)
 		}
 		for path, matches := range scanResults {
-			results, err := rules.ScanFile(path, 0, 0)
+			var results yara.MatchRules
+			err := rules.ScanFile(path, 0, 0, &results)
 			if err != nil {
 				Warning(err)
 			}