The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/tools/scripts/Makefile.include

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
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    1 ifeq ($(origin O), command line)
    2         dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),)
    3         ABSOLUTE_O := $(shell cd $(O) ; pwd)
    4         OUTPUT := $(ABSOLUTE_O)/$(if $(subdir),$(subdir)/)
    5         COMMAND_O := O=$(ABSOLUTE_O)
    6 ifeq ($(objtree),)
    7         objtree := $(O)
    8 endif
    9 endif
   10 
   11 ifneq ($(OUTPUT),)
   12 # check that the output directory actually exists
   13 OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
   14 $(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))
   15 endif
   16 
   17 #
   18 # Include saner warnings here, which can catch bugs:
   19 #
   20 EXTRA_WARNINGS := -Wbad-function-cast
   21 EXTRA_WARNINGS += -Wdeclaration-after-statement
   22 EXTRA_WARNINGS += -Wformat-security
   23 EXTRA_WARNINGS += -Wformat-y2k
   24 EXTRA_WARNINGS += -Winit-self
   25 EXTRA_WARNINGS += -Wmissing-declarations
   26 EXTRA_WARNINGS += -Wmissing-prototypes
   27 EXTRA_WARNINGS += -Wnested-externs
   28 EXTRA_WARNINGS += -Wno-system-headers
   29 EXTRA_WARNINGS += -Wold-style-definition
   30 EXTRA_WARNINGS += -Wpacked
   31 EXTRA_WARNINGS += -Wredundant-decls
   32 EXTRA_WARNINGS += -Wshadow
   33 EXTRA_WARNINGS += -Wstrict-aliasing=3
   34 EXTRA_WARNINGS += -Wstrict-prototypes
   35 EXTRA_WARNINGS += -Wswitch-default
   36 EXTRA_WARNINGS += -Wswitch-enum
   37 EXTRA_WARNINGS += -Wundef
   38 EXTRA_WARNINGS += -Wwrite-strings
   39 EXTRA_WARNINGS += -Wformat
   40 
   41 ifneq ($(findstring $(MAKEFLAGS), w),w)
   42 PRINT_DIR = --no-print-directory
   43 else
   44 NO_SUBDIR = :
   45 endif
   46 
   47 #
   48 # Define a callable command for descending to a new directory
   49 #
   50 # Call by doing: $(call descend,directory[,target])
   51 #
   52 descend = \
   53         +mkdir -p $(OUTPUT)$(1) && \
   54         $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2)
   55 
   56 QUIET_SUBDIR0  = +$(MAKE) $(COMMAND_O) -C # space to separate -C and subdir
   57 QUIET_SUBDIR1  =
   58 
   59 ifneq ($(findstring $(MAKEFLAGS),s),s)
   60 ifndef V
   61         QUIET_CC       = @echo '   ' CC $@;
   62         QUIET_AR       = @echo '   ' AR $@;
   63         QUIET_LINK     = @echo '   ' LINK $@;
   64         QUIET_MKDIR    = @echo '   ' MKDIR $@;
   65         QUIET_GEN      = @echo '   ' GEN $@;
   66         QUIET_SUBDIR0  = +@subdir=
   67         QUIET_SUBDIR1  = ;$(NO_SUBDIR) echo '   ' SUBDIR $$subdir; \
   68                          $(MAKE) $(PRINT_DIR) -C $$subdir
   69         QUIET_FLEX     = @echo '   ' FLEX $@;
   70         QUIET_BISON    = @echo '   ' BISON $@;
   71 
   72         descend = \
   73                 @echo '   ' DESCEND $(1); \
   74                 mkdir -p $(OUTPUT)$(1) && \
   75                 $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2)
   76 endif
   77 endif

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