[deliverable/linux.git] / scripts / mkmakefile

#!/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
# Only overwrite automatically generated Makefiles
# (so we do not overwrite kernel Makefile)
if test -e $2/Makefile && ! grep -q Automatically $2/Makefile
then
	exit 0
fi
echo "  GEN     $2/Makefile"

cat << EOF > $2/Makefile
# Automatically generated by $0: don't edit

VERSION = $3
PATCHLEVEL = $4

lastword = \$(word \$(words \$(1)),\$(1))
makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST)))

MAKEARGS := -C $1
MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir))

MAKEFLAGS += --no-print-directory

.PHONY: all \$(MAKECMDGOALS)

all	:= \$(filter-out all Makefile,\$(MAKECMDGOALS))

all:
	\$(MAKE) \$(MAKEARGS) \$(all)

Makefile:;

\$(all) %/: all
	@:

EOF
Commit	Line	Data
	1	#!/bin/sh
	2	# Generates a small Makefile used in the root of the output
	3	# directory, to allow make to be started from there.
	4	# The Makefile also allow for more convinient build of external modules
	5
	6	# Usage
	7	# $1 - Kernel src directory
	8	# $2 - Output directory
	9	# $3 - version
	10	# $4 - patchlevel
	11
	12
	13	test ! -r $2/Makefile -o -O $2/Makefile \|\| exit 0
	14	# Only overwrite automatically generated Makefiles
	15	# (so we do not overwrite kernel Makefile)
	16	if test -e $2/Makefile && ! grep -q Automatically $2/Makefile
	17	then
	18	exit 0
	19	fi
	20	echo " GEN $2/Makefile"
	21
	22	cat << EOF > $2/Makefile
	23	# Automatically generated by $0: don't edit
	24
	25	VERSION = $3
	26	PATCHLEVEL = $4
	27
	28	lastword = \$(word \$(words \$(1)),\$(1))
	29	makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST)))
	30
	31	MAKEARGS := -C $1
	32	MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir))
	33
	34	MAKEFLAGS += --no-print-directory
	35
	36	.PHONY: all \$(MAKECMDGOALS)
	37
	38	all := \$(filter-out all Makefile,\$(MAKECMDGOALS))
	39
	40	all:
	41	\$(MAKE) \$(MAKEARGS) \$(all)
	42
	43	Makefile:;
	44
	45	\$(all) %/: all
	46	@:
	47
	48	EOF