mkmakefile

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    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 $2/Makefile
   17 then
   18         exit 0
   19 fi
   20 if [ "${quiet}" != "silent_" ]; then
   21         echo "  GEN     $2/Makefile"
   22 fi
   23 
   24 cat << EOF > $2/Makefile
   25 # Automatically generated by $0: don't edit
   26 
   27 VERSION = $3
   28 PATCHLEVEL = $4
   29 
   30 lastword = \$(word \$(words \$(1)),\$(1))
   31 makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST)))
   32 
   33 ifeq ("\$(origin V)", "command line")
   34 VERBOSE := \$(V)
   35 endif
   36 ifneq (\$(VERBOSE),1)
   37 Q := @
   38 endif
   39 
   40 MAKEARGS := -C $1
   41 MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir))
   42 
   43 MAKEFLAGS += --no-print-directory
   44 
   45 .PHONY: all \$(MAKECMDGOALS)
   46 
   47 all     := \$(filter-out all Makefile,\$(MAKECMDGOALS))
   48 
   49 all:
   50         \$(Q)\$(MAKE) \$(MAKEARGS) \$(all)
   51 
   52 Makefile:;
   53 
   54 \$(all): all
   55         @:
   56 
   57 %/: all
   58         @:
   59 EOF

Cache object: 92023df42fdacfa2dbc1f4440a38e0e4

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FreeBSD/Linux Kernel Cross Reference sys/scripts/mkmakefile

FreeBSD/Linux Kernel Cross Reference
sys/scripts/mkmakefile