From f6163cfb1238bc3a40ceaeb76daa960d9af51765 Mon Sep 17 00:00:00 2001
From: tzafrir <tzafrir@5390a7c7-147a-4af0-8ec9-7488f05a26cb>
Date: Mon, 31 Mar 2008 23:57:06 +0000
Subject: Fix 'make clean' when there's no kernel tree. Partial backport of
 r4082 from 1.4.

git-svn-id: http://svn.digium.com/svn/zaptel/branches/1.2@4117 5390a7c7-147a-4af0-8ec9-7488f05a26cb
---
 Makefile | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index a250938..ad2cd13 100644
--- a/Makefile
+++ b/Makefile
@@ -41,6 +41,16 @@ ifndef KSRC
 endif
 KINCLUDES:=$(KSRC)/include
 
+# We use the kernel's .config file as an indication that the KSRC
+# directory is indeed a valid and configured kernel source (or partial
+# source) directory.
+KCONFIG:=$(KSRC)/.config
+ifneq (,$(wildcard $(KCONFIG)))
+  HAS_KSRC=yes
+else
+  HAS_KSRC=no
+endif
+
 ifeq (2.6,$(shell echo $(KVERS) | cut -d. -f1-2))
   BUILDVER:=linux26
 else
@@ -556,7 +566,9 @@ clean:
 	rm -f patgen pattest patlooptest hdlcstress hdlctest hdlcgen hdlcverify timertest
 	rm -f *.o ztcfg tzdriver sethdlc sethdlc-new
 	rm -f $(TZOBJS) $(LIBTONEZONE_SO) *.lo
+ifeq (yes,$(HAS_KSRC))
 	$(MAKE) -C $(KSRC) SUBDIRS=$(PWD) clean
+endif
 	$(MAKE) -C wct4xxp clean
 	$(MAKE) -C wctc4xxp clean
 	rm -rf .tmp_versions
-- 
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