contrib: ncurses: explicitly set PKG_CONFIG_LIBDIR

ncurses' heavily-modified autoconfigury expects this to be present.
Signed-off-by: Rafaël Carré <funman@videolan.org>

contrib/src/ncurses/rules.mak

@@ -21,8 +21,8 @@ ncurses: ncurses-$(NCURSES_VERSION).tar.gz .sum-ncurses
 	$(MOVE)
 
 .ncurses: ncurses
-	cd $< && $(HOSTVARS) ./configure $(patsubst --datarootdir=%,,$(HOSTCONF)) --without-debug --enable-widec --without-develop --without-shared --with-terminfo-dirs=/usr/share/terminfo --enable-pc-files
+	cd $< && mkdir -p "$(PREFIX)/lib/pkgconfig" && $(HOSTVARS) PKG_CONFIG_LIBDIR="$(PREFIX)/lib/pkgconfig" ./configure $(patsubst --datarootdir=%,,$(HOSTCONF)) --without-debug --enable-widec --without-develop --without-shared --with-terminfo-dirs=/usr/share/terminfo --with-pkg-config=yes --enable-pc-files
 	cd $</ncurses && make -j1 && make install
 	cd $</include && make -j1 && make install
-	cd $</misc && make pc-files && mkdir -p "$(PREFIX)/lib/pkgconfig" && cp ncursesw.pc "$(PREFIX)/lib/pkgconfig"
+	cd $</misc && make pc-files && cp ncursesw.pc "$(PREFIX)/lib/pkgconfig"
 	touch $@