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core: move pkg-utils.mk to support/
pkg-utils.mk contains various definitions that are used in the package infrastructures and packages themselves. However, those definitions can be useful in other parts of Buildroot, and are already used in a few places that are not related to the package infrastructure. Also, $(sep) will be needed early in the Makefile when we eventually support multiple br2-external trees. Since this file only contains definitions, we can include it anytime. So, consider that file to no longer be specific to the package infras: - move it to support and rename it, - move a few similar definitions from the main Makefile to that file. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Peter Korsgaard <jacmet@uclibc.org> Reviewed-by: Romain Naour <romain.naour@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Yann E. MORIN
Thomas Petazzoni
parent
2b141fcebd
commit
242e0087e5
10
Makefile
10
Makefile
@ -106,14 +106,8 @@ else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
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BR_BUILDING = y
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BR_BUILDING = y
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endif
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endif
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# Strip quotes and then whitespaces
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# Include some helper macros and variables
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qstrip = $(strip $(subst ",,$(1)))
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include support/misc/utils.mk
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#"))
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# Variables for use in Make constructs
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comma := ,
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empty :=
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space := $(empty) $(empty)
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ifneq ("$(origin O)", "command line")
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ifneq ("$(origin O)", "command line")
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O := output
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O := output
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@ -5,43 +5,6 @@
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#
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#
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################################################################################
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################################################################################
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# Case conversion macros. This is inspired by the 'up' macro from gmsl
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# (http://gmsl.sf.net). It is optimised very heavily because these macros
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# are used a lot. It is about 5 times faster than forking a shell and tr.
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#
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# The caseconvert-helper creates a definition of the case conversion macro.
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# After expansion by the outer $(eval ), the UPPERCASE macro is defined as:
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# $(strip $(eval __tmp := $(1)) $(eval __tmp := $(subst a,A,$(__tmp))) ... )
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# In other words, every letter is substituted one by one.
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#
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# The caseconvert-helper allows us to create this definition out of the
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# [FROM] and [TO] lists, so we don't need to write down every substition
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# manually. The uses of $ and $$ quoting are chosen in order to do as
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# much expansion as possible up-front.
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#
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# Note that it would be possible to conceive a slightly more optimal
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# implementation that avoids the use of __tmp, but that would be even
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# more unreadable and is not worth the effort.
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[FROM] := a b c d e f g h i j k l m n o p q r s t u v w x y z - .
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[TO] := A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _ _
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define caseconvert-helper
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$(1) = $$(strip \
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$$(eval __tmp := $$(1))\
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$(foreach c, $(2),\
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$$(eval __tmp := $$(subst $(word 1,$(subst :, ,$c)),$(word 2,$(subst :, ,$c)),$$(__tmp))))\
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$$(__tmp))
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endef
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$(eval $(call caseconvert-helper,UPPERCASE,$(join $(addsuffix :,$([FROM])),$([TO]))))
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$(eval $(call caseconvert-helper,LOWERCASE,$(join $(addsuffix :,$([TO])),$([FROM]))))
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# Sanitize macro cleans up generic strings so it can be used as a filename
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# and in rules. Particularly useful for VCS version strings, that can contain
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# slashes, colons (OK in filenames but not in rules), and spaces.
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sanitize = $(subst $(space),_,$(subst :,_,$(subst /,_,$(strip $(1)))))
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#
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#
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# Manipulation of .config files based on the Kconfig
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# Manipulation of .config files based on the Kconfig
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# infrastructure. Used by the BusyBox package, the Linux kernel
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# infrastructure. Used by the BusyBox package, the Linux kernel
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@ -82,65 +45,6 @@ INFLATE.tar = cat
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# suitable-extractor(filename): returns extractor based on suffix
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# suitable-extractor(filename): returns extractor based on suffix
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suitable-extractor = $(INFLATE$(suffix $(1)))
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suitable-extractor = $(INFLATE$(suffix $(1)))
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# MESSAGE Macro -- display a message in bold type
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MESSAGE = echo "$(TERM_BOLD)>>> $($(PKG)_NAME) $($(PKG)_VERSION) $(call qstrip,$(1))$(TERM_RESET)"
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TERM_BOLD := $(shell tput smso 2>/dev/null)
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TERM_RESET := $(shell tput rmso 2>/dev/null)
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# Utility functions for 'find'
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# findfileclauses(filelist) => -name 'X' -o -name 'Y'
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findfileclauses = $(call notfirstword,$(patsubst %,-o -name '%',$(1)))
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# finddirclauses(base, dirlist) => -path 'base/dirX' -o -path 'base/dirY'
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finddirclauses = $(call notfirstword,$(patsubst %,-o -path '$(1)/%',$(2)))
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# Miscellaneous utility functions
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# notfirstword(wordlist): returns all but the first word in wordlist
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notfirstword = $(wordlist 2,$(words $(1)),$(1))
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# Needed for the foreach loops to loop over the list of hooks, so that
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# each hook call is properly separated by a newline.
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define sep
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endef
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PERCENT = %
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QUOTE = '
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# ' # Meh... syntax-highlighting
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# This macro properly escapes a command string, then prints it with printf:
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#
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# - first, backslash '\' are self-escaped, so that they do not escape
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# the following char and so that printf properly outputs a backslash;
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#
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# - next, single quotes are escaped by closing an existing one, adding
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# an escaped one, and re-openning a new one (see below for the reason);
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#
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# - then '%' signs are self-escaped so that the printf does not interpret
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# them as a format specifier, in case the variable contains an actual
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# printf with a format;
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#
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# - finally, $(sep) is replaced with the literal '\n' so that make does
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# not break on the so-expanded variable, but so that the printf does
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# correctly output an LF.
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#
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# Note: this must be escaped in this order to avoid over-escaping the
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# previously escaped elements.
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#
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# Once everything has been escaped, it is passed between single quotes
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# (that's why the single-quotes are escaped they way they are, above,
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# and why the dollar sign is not escaped) to printf(1). A trailing
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# newline is apended, too.
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#
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# Note: leading or trailing spaces are *not* stripped.
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#
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define PRINTF
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printf '$(subst $(sep),\n,\
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$(subst $(PERCENT),$(PERCENT)$(PERCENT),\
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$(subst $(QUOTE),$(QUOTE)\$(QUOTE)$(QUOTE),\
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$(subst \,\\,$(1)))))\n'
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endef
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# check-deprecated-variable -- throw an error on deprecated variables
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# check-deprecated-variable -- throw an error on deprecated variables
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# example:
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# example:
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# $(eval $(call check-deprecated-variable,FOO_MAKE_OPT,FOO_MAKE_OPTS))
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# $(eval $(call check-deprecated-variable,FOO_MAKE_OPT,FOO_MAKE_OPTS))
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111
support/misc/utils.mk
Normal file
111
support/misc/utils.mk
Normal file
@ -0,0 +1,111 @@
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################################################################################
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#
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# This file contains various utility macros and variables used about
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# everywhere in make constructs.
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#
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################################################################################
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# Strip quotes and then whitespaces
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qstrip = $(strip $(subst ",,$(1)))
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#"))
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# Variables for use in Make constructs
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comma := ,
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empty :=
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space := $(empty) $(empty)
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# Case conversion macros. This is inspired by the 'up' macro from gmsl
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# (http://gmsl.sf.net). It is optimised very heavily because these macros
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# are used a lot. It is about 5 times faster than forking a shell and tr.
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#
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# The caseconvert-helper creates a definition of the case conversion macro.
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# After expansion by the outer $(eval ), the UPPERCASE macro is defined as:
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# $(strip $(eval __tmp := $(1)) $(eval __tmp := $(subst a,A,$(__tmp))) ... )
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# In other words, every letter is substituted one by one.
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#
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# The caseconvert-helper allows us to create this definition out of the
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# [FROM] and [TO] lists, so we don't need to write down every substition
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# manually. The uses of $ and $$ quoting are chosen in order to do as
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# much expansion as possible up-front.
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#
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# Note that it would be possible to conceive a slightly more optimal
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# implementation that avoids the use of __tmp, but that would be even
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# more unreadable and is not worth the effort.
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[FROM] := a b c d e f g h i j k l m n o p q r s t u v w x y z - .
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[TO] := A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _ _
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define caseconvert-helper
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$(1) = $$(strip \
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$$(eval __tmp := $$(1))\
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$(foreach c, $(2),\
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$$(eval __tmp := $$(subst $(word 1,$(subst :, ,$c)),$(word 2,$(subst :, ,$c)),$$(__tmp))))\
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$$(__tmp))
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endef
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$(eval $(call caseconvert-helper,UPPERCASE,$(join $(addsuffix :,$([FROM])),$([TO]))))
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$(eval $(call caseconvert-helper,LOWERCASE,$(join $(addsuffix :,$([TO])),$([FROM]))))
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# Sanitize macro cleans up generic strings so it can be used as a filename
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# and in rules. Particularly useful for VCS version strings, that can contain
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# slashes, colons (OK in filenames but not in rules), and spaces.
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sanitize = $(subst $(space),_,$(subst :,_,$(subst /,_,$(strip $(1)))))
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# MESSAGE Macro -- display a message in bold type
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MESSAGE = echo "$(TERM_BOLD)>>> $($(PKG)_NAME) $($(PKG)_VERSION) $(call qstrip,$(1))$(TERM_RESET)"
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TERM_BOLD := $(shell tput smso 2>/dev/null)
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TERM_RESET := $(shell tput rmso 2>/dev/null)
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# Utility functions for 'find'
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# findfileclauses(filelist) => -name 'X' -o -name 'Y'
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findfileclauses = $(call notfirstword,$(patsubst %,-o -name '%',$(1)))
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# finddirclauses(base, dirlist) => -path 'base/dirX' -o -path 'base/dirY'
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finddirclauses = $(call notfirstword,$(patsubst %,-o -path '$(1)/%',$(2)))
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# Miscellaneous utility functions
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# notfirstword(wordlist): returns all but the first word in wordlist
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notfirstword = $(wordlist 2,$(words $(1)),$(1))
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# Needed for the foreach loops to loop over the list of hooks, so that
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# each hook call is properly separated by a newline.
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define sep
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endef
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PERCENT = %
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QUOTE = '
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# ' # Meh... syntax-highlighting
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# This macro properly escapes a command string, then prints it with printf:
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#
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# - first, backslash '\' are self-escaped, so that they do not escape
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# the following char and so that printf properly outputs a backslash;
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#
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# - next, single quotes are escaped by closing an existing one, adding
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# an escaped one, and re-openning a new one (see below for the reason);
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#
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# - then '%' signs are self-escaped so that the printf does not interpret
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# them as a format specifier, in case the variable contains an actual
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# printf with a format;
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#
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# - finally, $(sep) is replaced with the literal '\n' so that make does
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# not break on the so-expanded variable, but so that the printf does
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# correctly output an LF.
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#
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# Note: this must be escaped in this order to avoid over-escaping the
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# previously escaped elements.
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#
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# Once everything has been escaped, it is passed between single quotes
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# (that's why the single-quotes are escaped they way they are, above,
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# and why the dollar sign is not escaped) to printf(1). A trailing
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# newline is apended, too.
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#
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# Note: leading or trailing spaces are *not* stripped.
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#
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define PRINTF
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printf '$(subst $(sep),\n,\
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$(subst $(PERCENT),$(PERCENT)$(PERCENT),\
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$(subst $(QUOTE),$(QUOTE)\$(QUOTE)$(QUOTE),\
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$(subst \,\\,$(1)))))\n'
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endef
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