+# If we don't explicitly disable HsColour, PLIST gets changed
+# depending on whether we have installed it or not.
+ ${RUN} ${ECHO} "HSCOLOUR_SRCS = NO" >> ${WRKSRC}/mk/build.mk
+# To avoid powerpc crash...
+# See http://hackage.haskell.org/trac/ghc/ticket/4034
+#.if ${MACHINE_ARCH} == "powerpc" && ${OPSYS} == "Darwin"
+# ${RUN} ${ECHO} "GhcRtsHcOpts = -optc-O0 -optc-g" >> ${WRKSRC}/mk/build.mk
+# ${RUN} ${ECHO} "GhcRtsCcOpts = -O0 -g" >> ${WRKSRC}/mk/build.mk
+#.endif
+
+# Substitutions for INSTALL and DEINSTALL.
+FILES_SUBST+= DISTNAME=${DISTNAME}