--- ncurses-5.9/ncurses/Makefile.in
+++ ncurses-5.9_new/ncurses/Makefile.in
@@ -208,7 +208,7 @@
 	sh -e $(tinfo)/MKfallback.sh $(TERMINFO) $(TERMINFO_SRC) $(TIC_PATH) $(FALLBACK_LIST) >$@
 
 ./lib_gen.c : $(base)/MKlib_gen.sh ../include/curses.h
-	sh -e $(base)/MKlib_gen.sh "$(CPP) $(CPPFLAGS)" "$(AWK)" generated <../include/curses.h >$@
+	sh -e $(base)/MKlib_gen.sh "$(CPP) $(CPPFLAGS)" "$(AWK)-P " generated <../include/curses.h >$@
 
 init_keytry.h: make_keys$(BUILD_EXEEXT) keys.list
 	./make_keys$(BUILD_EXEEXT) keys.list > $@