Index: head/emulators/wine/Makefile
===================================================================
--- head/emulators/wine/Makefile
+++ head/emulators/wine/Makefile
@@ -121,7 +121,7 @@
 
 # Include this only if it has not been already included by the
 # i386-wine slave port.
-.ifndef PKGNAMEPREFIX
+.ifndef WINE_SLAVE_BUILD
 .include <bsd.port.pre.mk>
 .endif
 
@@ -164,6 +164,6 @@
 	${INSTALL_DATA} ${WRKSRC}/programs/winedbg/README ${STAGEDIR}${DOCSDIR}/README.winedbg
 	${INSTALL_DATA} ${WRKSRC}/tools/winedump/README ${STAGEDIR}${DOCSDIR}/README.winedump
 
-.ifndef PKGNAMEPREFIX
+.ifndef WINE_SLAVE_BUILD
 .include <bsd.port.post.mk>
 .endif