diff -ur biew-520/makefile.inc biew-520.curses/makefile.inc
--- biew-520/makefile.inc	Sat Oct 21 11:17:06 2000
+++ biew-520.curses/makefile.inc	Sat Nov 18 22:08:02 2000
@@ -62,7 +62,7 @@
 endif
 ifeq ($(TARGET_OS),linux)
  HOST=linux
- CDEFOS=-D__LINUX__ -D__UNIX__ -D__OS_NAME__='"Linux"' -D_VT100_ -D__OS__="linux" -Ulinux
+ CDEFOS=-D__LINUX__ -D__UNIX__ -D__OS_NAME__='"Linux"' -D__OS__="linux" -Ulinux
  OSLDEF=
  OS_LIBS=
  ifeq ($(USE_MOUSE),n)
@@ -70,6 +70,18 @@
   CDEFOS += -DHAVE_MOUSE
   OS_LIBS += -lgpm
  endif
+ ifeq ($(TARGET_SCREEN_LIB),vt100)
+   CDEFOS += -D_VT100_
+ else
+   ifeq ($(TARGET_SCREEN_LIB),slang)
+     CDEFOS += -D_SLANG_
+     OS_LIBS += -lslang
+   else
+	 CDEFOS += -D_CURSES_
+	 OS_LIBS += -lncurses
+   endif
+ endif
+
 endif
 ifeq ($(TARGET_OS),unix)
  HOST=unix