Protect concurrent map r/w

[goredo.git] / ifchange.go

diff --git a/ifchange.go b/ifchange.go
index a55120e2e995b957c78dc46f44614229542f3488..374adcf4e811ed044d6eef5c39ef815c9233de95 100644 (file)
--- a/ifchange.go
+++ b/ifchange.go
@@ -80,7 +80,7 @@ func buildDependants(tgts []*Tgt) map[string]*Tgt {
                        }
                }
        }
-       TgtCache = nil
+       TgtCache = make(map[string]*Tgt)
        IfchangeCache = nil
        if len(seen) == 0 {
                return seen