diff --git a/config.mk b/config.mk
index 619cbc3..6ddc6ae 100644
--- a/config.mk
+++ b/config.mk
@@ -69,6 +69,11 @@ PACKAGE_DIR?=$(PACKAGE_NAME:%=%/)
 PACKAGE_LIBS=$(MIQ_PRODLIB)
 PACKAGE_DLLS=$(MIQ_PRODDLL)
 
+# Package configuration directories by default
+PACKAGE_PREFIX?=$(PREFIX)
+PACKAGE_PREFIX_LIB?=$(PREFIX_LIB)
+PACKAGE_PREFIX_HDR?=$(PREFIX_HDR)
+
 # Local setup - Location of configuration files, etc (tweaked at install time)
 -include $(MIQ)config.local-setup.mk
 CONFIG_SOURCES?=$(MIQ)config/
diff --git a/rules.mk b/rules.mk
index 1a803ca..4996016 100644
--- a/rules.mk
+++ b/rules.mk
@@ -596,10 +596,10 @@ benchmark:	$(BENCHMARKS:%=%.benchmark)
 MIQ_PACKAGELIBS=$(PACKAGE_LIBS:%.lib=$(LINK_LIB_OPT)%)	\
 		$(PACKAGE_DLLS:%.dll=$(LINK_DLL_OPT)%)
 MIQ_GENPC=					  	 \
-	(echo 'prefix=$(PREFIX:%/=%)'			;\
+	(echo 'prefix=$(PACKAGE_PREFIX:%/=%)'		;\
 	echo 'exec_prefix=$${prefix}'			;\
-	echo 'libdir=$(PREFIX_LIB:%/=%)'		;\
-	echo 'includedir=$(PREFIX_HDR:%/=%)'		;\
+	echo 'libdir=$(PACKAGE_PREFIX_LIB:%/=%)'	;\
+	echo 'includedir=$(PACKAGE_PREFIX_HDR:%/=%)'	;\
 	echo 'Name: $(PACKAGE_NAME)'			;\
 	echo 'Description: $(PACKAGE_DESCRIPTION)'	;\
 	echo 'Version: $(PACKAGE_VERSION)'		;\