--- rawk-1.2.10/config.sh.orig	2015-04-09 02:27:30.391987216 -0300
+++ rawk-1.2.10/config.sh	2015-04-09 02:27:52.970986272 -0300
@@ -14,7 +14,7 @@
 fi

 if [ "${PREFIX}" = "/usr" ]; then
-    MANDIR="$(PREFIX)/share/man"
+    MANDIR="${PREFIX}/share/man"
 elif [ "${PREFIX}" = "/usr/local" ]; then
     if [ "${OPSYS}" = "Darwin" ]; then
         MANDIR="${PREFIX}/share/man"

.