1 files changed, 10 insertions, 4 deletions

diff --git a/scripts/lxdialog/Makefile b/scripts/lxdialog/Makefile
index b34bbc3..6d05cfd 100644
--- a/scripts/lxdialog/Makefile
+++ b/scripts/lxdialog/Makefile
@@ -1,34 +1,40 @@
 HOST_EXTRACFLAGS := -DLOCALE 
 HOST_LOADLIBES   := -lncurses
 HOSTCC = gcc
 
 ifeq (/usr/include/ncurses/ncurses.h, $(wildcard /usr/include/ncurses/ncurses.h))
-        HOST_EXTRACFLAGS += -I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"
+HOST_EXTRACFLAGS += -I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"
 else
 ifeq (/usr/include/ncurses/curses.h, $(wildcard /usr/include/ncurses/curses.h))
-        HOST_EXTRACFLAGS += -I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"
+HOST_EXTRACFLAGS += -I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"
 else
 ifeq (/usr/include/ncurses.h, $(wildcard /usr/include/ncurses.h))
-        HOST_EXTRACFLAGS += -DCURSES_LOC="<ncurses.h>"
+HOST_EXTRACFLAGS += -DCURSES_LOC="<ncurses.h>"
 else
-        HOST_EXTRACFLAGS += -DCURSES_LOC="<curses.h>"
+HOST_EXTRACFLAGS += -DCURSES_LOC="<curses.h>"
 endif
 endif
 endif
 
+ifeq ($(filter clean mrproper distclean,$(MAKECMDGOALS)),)
+ifeq ($(filter -DCURSES_LOC%,$(HOST_EXTRACFLAGS)),)
+$(error Unable to locate ncurses.h or curses.h)
+endif
+endif
+
         host-progs:= lxdialog
         always  := $(host-progs)
 
 lxdialog-objs := checklist.o menubox.o textbox.o yesno.o inputbox.o \
                  util.o lxdialog.o msgbox.o
 
 first_rule: ncurses lxdialog
 
 .PHONY: ncurses
 ncurses:
         @echo "main() {}" > lxtemp.c
         @if $(HOSTCC) lxtemp.c  $(HOST_LOADLIBES); then \
                 rm -f lxtemp.c a.out; \
         else \
                 rm -f lxtemp.c; \
                 echo -e "\007" ;\