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#!/bin/sh
# Generates a small Makefile used in the root of the output
# directory, to allow make to be started from there.
# The Makefile also allow for more convinient build of external modules
# Usage
# $1 - Kernel src directory
# $2 - Output directory
# $3 - version
# $4 - patchlevel
test ! -r $2/Makefile -o -O $2/Makefile || exit 0
echo " GEN $2/Makefile"
cat << EOF > $2/Makefile
# Automatically generated by $0: don't edit
VERSION = $3
PATCHLEVEL = $4
KERNELSRC := $1
KERNELOUTPUT := $2
MAKEFLAGS += --no-print-directory
.PHONY: all \$(MAKECMDGOALS)
all:
\$(MAKE) -C \$(KERNELSRC) O=\$(KERNELOUTPUT)
Makefile:;
\$(filter-out all Makefile,\$(MAKECMDGOALS)):
\$(MAKE) -C \$(KERNELSRC) O=\$(KERNELOUTPUT) \$@
%/:
\$(MAKE) -C \$(KERNELSRC) O=\$(KERNELOUTPUT) \$@
EOF
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