[PATCH] asm-generic magic

[george anzinger <george@mvista.com>]

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The attached patch changes topdir/Makefile to make the asm-generic
stuff to work the way I assumed it was supposed to work.  :)

That is, if the file exists in .../include/asm/ use that one, if not 
and it exist in .../include/asm-generic/ use the generic one.  This is 
compatable with current conventions but also allows asm files that do 
nothing but include the asm-generic file with the same name to go 
away.  The "magic" is to supply both include and include/asm-generic 
to CPP.  This causes it, when looking for  <asm/foo.h> to look first 
in ...include/asm/ and then in .../include/asm-generic/asm.  To make 
the ladder work we put a link (called asm) in asm-generic to point to ".".

Commits?

-- 
George Anzinger   george@mvista.com
High-res-timers:  http://sourceforge.net/projects/high-res-timers/
Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml


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--- linux-2.5.69-wq/Makefile~	2003-05-05 15:33:30.000000000 -0700
+++ linux/Makefile	2003-05-05 18:00:42.000000000 -0700
@@ -181,7 +181,7 @@
 
 NOSTDINC_FLAGS  = -nostdinc -iwithprefix include
 
-CPPFLAGS	:= -D__KERNEL__ -Iinclude
+CPPFLAGS	:= -D__KERNEL__ -Iinclude -Iinclude/generic-asm
 CFLAGS 		:= $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -O2 \
 	  	   -fno-strict-aliasing -fno-common
 AFLAGS		:= -D__ASSEMBLY__ $(CPPFLAGS)
@@ -403,7 +403,7 @@
 #	module versions are listed in "prepare"
 
 .PHONY: prepare
-prepare: include/linux/version.h include/asm include/config/MARKER
+prepare: include/linux/version.h include/asm include/config/MARKER include/asm-generic/asm
 ifdef KBUILD_MODULES
 ifeq ($(origin SUBDIRS),file)
 	$(Q)rm -rf $(MODVERDIR)
@@ -453,6 +453,10 @@
 	@echo '  Making asm->asm-$(ARCH) symlink'
 	@ln -s asm-$(ARCH) $@
 
+include/asm-generic/asm:
+	@echo '  Making asm-generic/asm->. symlink'
+	@ln -s . $@
+
 # 	Split autoconf.h into include/linux/config/*
 
 include/config/MARKER: scripts/split-include include/linux/autoconf.h
child process exited abnormally