--- Jambase.orig	2016-09-28 02:58:53 UTC
+++ Jambase
@@ -966,7 +966,7 @@ else if $(UNIX)
 	YACCFILES		?= y.tab ;
 	YACCFLAGS		?= -d ;
 
-	HDRS			?= /usr/local/include ;
+	HDRS			?= $(LOCALBASE)/include ;
 
 	# Add some good defaults for OS X
 	if $(OS) = MACOSX {
@@ -999,7 +999,11 @@ else if $(UNIX)
 # General defaults; a lot like UNIX
 #
 
-	AR				?= ar rusc ;
+	if ! $(AR) {
+		AR		= ar rusc ;
+	} else {
+		AR		+= rusc ;
+	}
 	AS				?= as ;
 	ASFLAGS			?= ;
 	AWK				?= awk ;