2.4 mkdep and symlinked kernel source

2.4 mkdep and symlinked kernel source

[Keith Owens]

The recent changes to mkdep can create incorrect dependencies when
  (a) the kernel source is a symlink and
  (b) you cd to the symlink and
  (c) your shell exports PWD.

This one line patch against 2.4.3-pre2 gives consistent results.
Please report any problems to kaos@ocs.com.au.

Index: 3-pre2.1/Makefile
--- 3-pre2.1/Makefile Mon, 05 Mar 2001 10:47:15 +1100 kaos (linux-2.4/T/c/50_Makefile 1.1.2.15.1.2.2.2 644)
+++ 3-pre2.1(w)/Makefile Mon, 05 Mar 2001 13:19:33 +1100 kaos (linux-2.4/T/c/50_Makefile 1.1.2.15.1.2.2.2 644)
@@ -10,7 +10,7 @@ ARCH := $(shell uname -m | sed -e s/i.86
 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 	  else if [ -x /bin/bash ]; then echo /bin/bash; \
 	  else echo sh; fi ; fi)
-TOPDIR	:= $(shell if [ "$$PWD" != "" ]; then echo $$PWD; else pwd; fi)
+TOPDIR	:= $(shell /bin/pwd)
 
 HPATH   	= $(TOPDIR)/include
 FINDHPATH	= $(HPATH)/asm $(HPATH)/linux $(HPATH)/scsi $(HPATH)/net