RFC: $(ARCH) in file

[lars brinkhoff]

This is a patch against the top-level Makefile in Linux 2.3.40.  It will
use a file called .arch to decide which architecture to build for.  If
no .arch file exists, it will be created.

Why do I want this?  Because I often build for an architecture which is
not the native one.  Saving the architecture in .arch is more convenient
then typing "make ARCH=foo".

Is is possible that Linus would accept this?

--- old.Makefile        Fri Jan 28 10:58:10 2000
+++ Makefile    Fri Jan 28 11:25:24 2000
@@ -3,7 +3,11 @@
 SUBLEVEL = 40
 EXTRAVERSION =
 
-ARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/)
+ifneq (.arch,$(wildcard .arch))
+archdummy := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/ > .arch)
+endif
+
+ARCH := $(shell cat .arch)
 
 .EXPORT_ALL_VARIABLES:
 

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