--- chicken-4.12.0.old/defaults.make
+++ chicken-4.12.0/defaults.make
@@ -35,16 +35,16 @@
 
 SEP ?= /
 DESTDIR ?=
-PREFIX ?= /usr/local
+PREFIX ?= __META_PREFIX__
 
 BINDIR ?= $(PREFIX)/bin
 LIBDIR ?= $(PREFIX)/lib
 SHAREDIR ?= $(PREFIX)/share
 DATADIR ?= $(SHAREDIR)/$(PROGRAM_PREFIX)chicken$(PROGRAM_SUFFIX)
 INCLUDEDIR ?= $(PREFIX)/include
-MANDIR ?= $(SHAREDIR)/man
+MANDIR ?= $(PREFIX)/man
 
-DOCDIR ?= $(DATADIR)/doc
+DOCDIR ?= $(PREFIX)/doc
 VARDIR ?= $(LIBDIR)
 MAN1DIR ?= $(MANDIR)/man1
 CHICKENLIBDIR ?= $(VARDIR)/$(PROGRAM_PREFIX)chicken$(PROGRAM_SUFFIX)