From a7b5c37689a7c2924bead20080570ddfea0a47dd Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Mon, 1 Jan 2001 22:29:27 +0000
Subject: Carefully tell folks when their Config is screwed up.

---
 Makefile | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index f2a7a44d8..a8cdd7179 100644
--- a/Makefile
+++ b/Makefile
@@ -44,6 +44,12 @@ halfclean:
 headers: dummy
 	@rm -f include/asm include/net include/linux include/bits
 	@ln -s $(KERNEL_SOURCE)/include/asm-$(ARCH_DIR) include/asm
+	@-ls -q include/asm/unistd.h >/dev/null 2>&1;
+	@if [ $? != 0 ] ; then \
+	    echo "You didn't set KERNEL_SOURCE, TARGET_ARCH or HAS_MMU correctly in Config"; \
+	    echo "The path '$(KERNEL_SOURCE)/include/asm-$(ARCH_DIR)' doesn't exist."; \
+	    /bin/false; \
+	fi;
 	@ln -s $(KERNEL_SOURCE)/include/net include/net
 	@ln -s $(KERNEL_SOURCE)/include/linux include/linux
 	@ln -s ../sysdeps/linux/$(TARGET_ARCH)/bits include/bits
-- 
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