fixup! version up: nano 2.8.4

component/nano/buildout.cfg

@@ -10,10 +10,13 @@ extends =
 recipe = slapos.recipe.cmmi
 url = http://www.nano-editor.org/dist/v2.8/nano-2.8.4.tar.xz
 md5sum = 02ff28870194178595b287fc16fa611b
+# The dummy PKG_CONFIG is in the case that both pkg-config and ncursesw
+# are installed on the system.
 environment=
+  PKG_CONFIG=false
+  NCURSESW_CONFIG=${ncurses:location}/bin/ncursesw6-config
   CPPFLAGS=-I${file:location}/include
-  NCURSESW_CFLAGS=-I${ncurses:location}/include
-  LDFLAGS=-L${file:location}/lib/ -Wl,-rpath=${file:location}/lib/ -L${ncurses:location}/lib/ -Wl,-rpath=${ncurses:location}/lib/
+  LDFLAGS=-L${file:location}/lib/ -Wl,-rpath=${file:location}/lib/
 location = ${buildout:parts-directory}/${:_buildout_section_name_}
 post-install =
   cd ${:location} && mkdir etc &&