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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
- # Only overwrite automatically generated Makefiles
- # (so we do not overwrite kernel Makefile)
- if test -e $2/Makefile && ! grep -q Automatically $2/Makefile
- then
- exit 0
- fi
- if [ "${quiet}" != "silent_" ]; then
- echo " GEN $2/Makefile"
- fi
- 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)))
- ifeq ("\$(origin V)", "command line")
- VERBOSE := \$(V)
- endif
- ifneq (\$(VERBOSE),1)
- Q := @
- endif
- MAKEARGS := -C $1
- MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir))
- MAKEFLAGS += --no-print-directory
- .PHONY: __sub-make \$(MAKECMDGOALS)
- __sub-make:
- \$(Q)\$(MAKE) \$(MAKEARGS) \$(MAKECMDGOALS)
- \$(filter-out __sub-make, \$(MAKECMDGOALS)): __sub-make
- @:
- EOF
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