Block created ares_build.h for NetWare to avoid usage from other platforms.

Makefile.netware

@@ -20,7 +20,7 @@ endif
 TARGETS = adig.nlm ahost.nlm acountry.nlm
 LTARGET = libcares.$(LIBEXT)
 VERSION	= $(LIBCARES_VERSION)
-COPYR	= Copyright (C) 1996 - 2008, Daniel Stenberg, <daniel@haxx.se>
+COPYR	= Copyright (C) 1996 - 2010, Daniel Stenberg, <daniel@haxx.se>
 DESCR	= cURL $(subst .def,,$(notdir $@)) $(LIBCARES_VERSION_STR) - http://curl.haxx.se
 MTSAFE	= YES
 STACK	= 64000
@@ -142,7 +142,7 @@ ifeq ($(MTSAFE),NO)
 	XDCOPT = -u
 endif
 
-ifeq ($(findstring linux,$(OSTYPE)),linux)
+ifeq ($(findstring /sh,$(SHELL)),/sh)
 DL	= '
 #-include $(NDKBASE)/nlmconv/ncpfs.inc
 endif
@@ -415,6 +415,9 @@ ares_build.h: Makefile.netware FORCE
 	@echo $(DL)** Do not edit this file - it is created by make!$(DL) >> $@
 	@echo $(DL)** All your changes will be lost!!$(DL) >> $@
 	@echo $(DL)*/$(DL) >> $@
+	@echo $(DL)#ifndef NETWARE$(DL) >> $@
+	@echo $(DL)#error This $(notdir $@) is created for NetWare platform!$(DL) >> $@
+	@echo $(DL)#endif$(DL) >> $@
 	@echo $(DL)#ifndef __CARES_BUILD_H$(DL) >> $@
 	@echo $(DL)#define __CARES_BUILD_H$(DL) >> $@
 ifeq ($(LIBARCH),CLIB)