From 05c742df09825079be2d21b8e52726f68cc5343c Mon Sep 17 00:00:00 2001
From: Vincent Sanders <vince@kyllikki.org>
Date: Mon, 6 Apr 2015 00:16:39 +0100
Subject: Improve the make target validation

---
 Makefile | 28 ++++++++--------------------
 1 file changed, 8 insertions(+), 20 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 332108656..d54bfd409 100644
--- a/Makefile
+++ b/Makefile
@@ -114,29 +114,17 @@ ifeq ($(TARGET),)
   TARGET := gtk
 endif
 
-SUBTARGET =
-RESOURCES =
+# valid values for the TARGET
+VLDTARGET := riscos gtk beos amiga amigaos3 framebuffer windows atari cocoa monkey
 
-ifneq ($(TARGET),riscos)
-  ifneq ($(TARGET),gtk)
-    ifneq ($(TARGET),beos)
-      ifneq ($(findstring amiga,$(TARGET)),amiga)
-        ifneq ($(TARGET),framebuffer)
-          ifneq ($(TARGET),windows)
-            ifneq ($(TARGET),atari)
-              ifneq ($(TARGET),cocoa)
-                ifneq ($(TARGET),monkey)
-                  $(error Unknown TARGET "$(TARGET)", should either be "riscos", "gtk", "beos", "amiga", "framebuffer", "windows", "atari" or "cocoa" or "monkey")
-                endif
-              endif
-            endif
-          endif
-        endif
-      endif
-    endif
-  endif
+# Check for valid TARGET
+ifeq ($(filter $(VLDTARGET),$(TARGET)),)
+  $(error Unknown TARGET "$(TARGET)", Must be one of $(VLDTARGET))
 endif
 
+SUBTARGET =
+RESOURCES =
+
 PERL=perl
 MKDIR=mkdir
 TOUCH=touch
-- 
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