Fixed symlinks for pkgconfig

Makefile

@@ -10,7 +10,7 @@ all:
 	for lib in ncurses form panel menu ; do \
 	    rm -vf                     /usr/lib/lib$${lib}.so && \
 	    echo "INPUT(-l$${lib}w)" > /usr/lib/lib$${lib}.so && \
-	    ln -sfv lib$${lib}w.pc     /usr/lib/pkgconfig/$${lib}.pc ; \
+	    ln -sfv $${lib}w.pc        /usr/lib/pkgconfig/$${lib}.pc ; \
 	done
 	rm -vf                     /usr/lib/libcursesw.so
 	echo "INPUT(-lncursesw)" > /usr/lib/libcursesw.so