kbuild: Compatible with old bash, fix help, make clean fix

[Sam Ravnborg <sam@ravnborg.org>]

kbuild fixes:
o Do not use "-" in exported symbols, bash does not support that (Keith)
o Sort ALL_SUBDIRS, to avoid warning about duplicate target
	- Happens when the same directory are specified with drivers-y
	  and drivers-n
o Added AWK, a few architectures actually use awk for normal compilation
o Removed distclean from make help, now that distclean and mrporper are merged

	Sam

The following files are touched:
 Makefile               |   17 +++++++++--------
 scripts/Makefile.build |    2 +-
 2 files changed, 10 insertions(+), 9 deletions(-)


===== Makefile 1.338 vs edited =====
--- 1.338/Makefile	Fri Nov  1 18:00:18 2002
+++ edited/Makefile	Sun Nov  3 09:38:26 2002
@@ -155,6 +155,7 @@
 STRIP		= $(CROSS_COMPILE)strip
 OBJCOPY		= $(CROSS_COMPILE)objcopy
 OBJDUMP		= $(CROSS_COMPILE)objdump
+AWK		= awk
 GENKSYMS	= /sbin/genksyms
 DEPMOD		= /sbin/depmod
 KALLSYMS	= /sbin/kallsyms
@@ -214,7 +215,7 @@
 
 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
 
-export include-config := 1
+export include_config := 1
 
 -include .config
 
@@ -228,9 +229,10 @@
 		     $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
 		     $(net-y) $(net-m) $(libs-y) $(libs-m)))
 
-ALL_SUBDIRS     := $(SUBDIRS) $(patsubst %/,%,$(filter %/, $(init-n) $(init-) \
+ALL_SUBDIRS     := $(sort $(SUBDIRS) $(patsubst %/,%,$(filter %/, \
+		     $(init-n) $(init-) \
 		     $(core-n) $(core-) $(drivers-n) $(drivers-) \
-		     $(net-n) $(net-) $(libs-n) $(libs-)))
+		     $(net-n)  $(net-)  $(libs-n)    $(libs-))))
 
 init-y		:= $(patsubst %/, %/built-in.o, $(init-y))
 core-y		:= $(patsubst %/, %/built-in.o, $(core-y))
@@ -238,7 +240,7 @@
 net-y		:= $(patsubst %/, %/built-in.o, $(net-y))
 libs-y		:= $(patsubst %/, %/lib.a, $(libs-y))
 
-ifdef include-config
+ifdef include_config
 
 # Here goes the main Makefile
 # ===========================================================================
@@ -602,7 +604,7 @@
 	rpm -ta $(TOPDIR)/../$(KERNELPATH).tar.gz ; \
 	rm $(TOPDIR)/../$(KERNELPATH).tar.gz
 
-else # ifdef include-config
+else # ifdef include_config
 
 ifeq ($(filter-out $(noconfig_targets),$(MAKECMDGOALS)),)
 
@@ -764,8 +766,7 @@
 help:
 	@echo  'Cleaning targets:'
 	@echo  '  clean		- remove most generated files but keep the config'
-	@echo  '  mrproper	- remove all generated files including the config'
-	@echo  '  distclean	- mrproper + remove files generated by editors and patch'
+	@echo  '  mrproper	- remove all generated files + config + various backup files'
 	@echo  ''
 	@echo  'Configuration targets:'
 	@echo  '  oldconfig	- Update current config utilising a line-oriented program'
@@ -828,7 +829,7 @@
 	$(MAKE) $@
 
 endif # ifeq ($(filter-out $(noconfig_targets),$(MAKECMDGOALS)),)
-endif # ifdef include-config
+endif # ifdef include_config
 
 # FIXME Should go into a make.lib or something 
 # ===========================================================================
===== scripts/Makefile.build 1.7 vs edited =====
--- 1.7/scripts/Makefile.build	Wed Oct 30 18:14:54 2002
+++ edited/scripts/Makefile.build	Sun Nov  3 09:33:20 2002
@@ -7,7 +7,7 @@
 .PHONY: __build
 __build:
 
-ifdef include-config
+ifdef include_config
 include .config
 endif