fix symlink path in Jamroot when using --prefix

Author: yvesscherrer

Jamroot

@@ -338,8 +338,8 @@ if [ path.exists $(TOP)/dist ] && $(prefix) != dist {
 }
 
 #local temp = [ _shell "bash source ./s.sh" ] ;
-local temp = [ _shell "mkdir -p $(TOP)/bin" ] ;
-local temp = [ _shell "rm -f $(TOP)/bin/moses_chart" ] ;
-local temp = [ _shell "cd $(TOP)/bin && ln -sf moses moses_chart" ] ;
-local temp = [ _shell "cd $(TOP)/bin && ln -sf CreateProbingPT CreateProbingPT2" ] ;
+local temp = [ _shell "mkdir -p $(PREFIX)/bin" ] ;
+local temp = [ _shell "rm -f $(PREFIX)/bin/moses_chart" ] ;
+local temp = [ _shell "cd $(PREFIX)/bin && ln -sf moses moses_chart" ] ;
+local temp = [ _shell "cd $(PREFIX)/bin && ln -sf CreateProbingPT CreateProbingPT2" ] ;