444 lines
12 KiB
Makefile
444 lines
12 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# libtraceevent version
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EP_VERSION = 1
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EP_PATCHLEVEL = 7
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EP_EXTRAVERSION = 1
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EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
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MAKEFLAGS += --no-print-directory
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# Makefiles suck: This macro sets a default value of $(2) for the
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# variable named by $(1), unless the variable has been set by
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# environment or command line. This is necessary for CC and AR
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# because make sets default values, so the simpler ?= approach
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# won't work as expected.
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define allow-override
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$(if $(or $(findstring environment,$(origin $(1))),\
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$(findstring command line,$(origin $(1)))),,\
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$(eval $(1) = $(2)))
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endef
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# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
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$(call allow-override,CC,$(CROSS_COMPILE)gcc)
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$(call allow-override,AR,$(CROSS_COMPILE)ar)
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$(call allow-override,NM,$(CROSS_COMPILE)nm)
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$(call allow-override,PKG_CONFIG,pkg-config)
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$(call allow-override,LD_SO_CONF_PATH,/etc/ld.so.conf.d/)
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$(call allow-override,LDCONFIG,ldconfig)
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EXT = -std=gnu99
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INSTALL = install
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# Use DESTDIR for installing into a different root directory.
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# This is useful for building a package. The program will be
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# installed in this directory as if it was the root directory.
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# Then the build tool can move it later.
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DESTDIR ?=
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DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
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LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
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ifeq ($(LP64), 1)
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libdir_relative_temp = lib64
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else
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libdir_relative_temp = lib
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endif
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libdir_relative ?= $(libdir_relative_temp)
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prefix ?= /usr/local
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libdir ?= $(prefix)/$(libdir_relative)
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man_dir ?= $(prefix)/share/man
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man_dir_SQ = '$(subst ','\'',$(man_dir))'
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pkgconfig_dir ?= $(word 1,$(shell $(PKG_CONFIG) \
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--variable pc_path pkg-config | tr ":" " "))
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includedir_relative = include/traceevent
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includedir = $(prefix)/$(includedir_relative)
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includedir_SQ = '$(subst ','\'',$(includedir))'
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export man_dir man_dir_SQ INSTALL
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export DESTDIR DESTDIR_SQ
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export EP_VERSION EVENT_PARSE_VERSION
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# copy a bit from Linux kbuild
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ifeq ("$(origin V)", "command line")
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VERBOSE = $(V)
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endif
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ifndef VERBOSE
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VERBOSE = 0
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endif
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SILENT := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),1)
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ifeq ("$(origin O)", "command line")
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saved-output := $(O)
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BUILD_OUTPUT := $(shell cd $(O) && /bin/pwd)
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$(if $(BUILD_OUTPUT),, \
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$(error output directory "$(saved-output)" does not exist))
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else
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BUILD_OUTPUT = $(CURDIR)
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endif
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srctree := $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR))
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objtree := $(BUILD_OUTPUT)
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src := $(srctree)
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obj := $(objtree)
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bdir := $(obj)/lib
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export prefix src obj bdir
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PKG_CONFIG_SOURCE_FILE = libtraceevent.pc
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PKG_CONFIG_FILE := $(addprefix $(obj)/,$(PKG_CONFIG_SOURCE_FILE))
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export Q SILENT VERBOSE EXT
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# Include the utils
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include scripts/utils.mk
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include $(src)/scripts/features.mk
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# Shell quotes
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libdir_SQ = $(subst ','\'',$(libdir))
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libdir_relative_SQ = $(subst ','\'',$(libdir_relative))
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CONFIG_INCLUDES =
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CONFIG_LIBS =
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CONFIG_FLAGS =
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VERSION = $(EP_VERSION)
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PATCHLEVEL = $(EP_PATCHLEVEL)
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EXTRAVERSION = $(EP_EXTRAVERSION)
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OBJ = $@
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N =
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LIBTRACEEVENT_STATIC = $(bdir)/libtraceevent.a
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LIBTRACEEVENT_SHARED = $(bdir)/libtraceevent.so.$(EVENT_PARSE_VERSION)
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EP_HEADERS_DIR = $(src)/include/traceevent
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INCLUDES = -I. -I $(srctree)/include -I $(EP_HEADERS_DIR) $(CONFIG_INCLUDES)
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export LIBTRACEEVENT_STATIC LIBTRACEEVENT_SHARED EP_HEADERS_DIR
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# Set compile option CFLAGS
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ifdef EXTRA_CFLAGS
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CFLAGS := $(EXTRA_CFLAGS)
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else
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CFLAGS := -g -Wall
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endif
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LIBS ?= -ldl
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export LIBS
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set_plugin_dir := 1
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# Set plugin_dir to prefered global plugin location
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# If we install under $HOME directory we go under
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# $(HOME)/.local/lib/traceevent/plugins
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#
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# We dont set PLUGIN_DIR in case we install under $HOME
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# directory, because by default the code looks under:
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# $(HOME)/.local/lib/traceevent/plugins by default.
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#
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ifeq ($(plugin_dir),)
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ifeq ($(prefix),$(HOME))
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override plugin_dir = $(HOME)/.local/lib/traceevent/plugins
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set_plugin_dir := 0
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else
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override plugin_dir = $(libdir)/traceevent/plugins
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endif
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export plugin_dir
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endif
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ifeq ($(set_plugin_dir),1)
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PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)"
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PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
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export PLUGIN_DIR PLUGIN_DIR_SQ
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endif
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# Append required CFLAGS
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override CFLAGS += -fPIC
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override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
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override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
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# Make sure 32 bit stat() works on large file systems
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override CFLAGS += -D_FILE_OFFSET_BITS=64
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ifeq ($(VERBOSE),1)
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Q =
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else
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Q = @
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endif
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# Disable command line variables (CFLAGS) override from top
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# level Makefile (perf), otherwise build Makefile will get
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# the same command line setup.
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MAKEOVERRIDES=
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export srctree CC LD CFLAGS V
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build := -f $(srctree)/build/Makefile.build dir=. obj
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LIB_TARGET := libtraceevent.so libtraceevent.a
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CMD_TARGETS = $(LIB_TARGET) $(PKG_CONFIG_FILE)
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TARGETS = $(CMD_TARGETS)
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all: all_cmd plugins
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$(bdir):
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$(Q)mkdir -p $(bdir)
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LIB_TARGET = libtraceevent.a libtraceevent.so
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LIB_INSTALL = libtraceevent.a libtraceevent.so*
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LIB_INSTALL := $(addprefix $(bdir)/,$(LIB_INSTALL))
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LIBTRACEEVENT_SHARED_SO = $(bdir)/libtraceevent.so
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LIBTRACEEVENT_SHARED_VERSION = $(bdir)/libtraceevent.so.$(EP_VERSION)
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export LIBTRACEEVENT_SHARED_SO LIBTRACEEVENT_SHARED_VERSION
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all_cmd: $(CMD_TARGETS)
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libtraceevent.a: $(bdir) $(LIBTRACEEVENT_STATIC)
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libtraceevent.so: $(bdir) $(LIBTRACEEVENT_SHARED)
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libs: libtraceevent.a libtraceevent.so
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$(LIBTRACEEVENT_STATIC): force
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$(Q)$(call descend,$(src)/src,$@)
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$(LIBTRACEEVENT_SHARED): force
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$(Q)$(call descend,$(src)/src,libtraceevent.so)
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$(bdir)/libtraceevent.so: $(bdir)/libtraceevent.so.$(EP_VERSION)
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@ln -sf $(<F) $@
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define make_version.h
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(echo '/* This file is automatically generated. Do not modify. */'; \
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echo \#define VERSION_CODE $(shell \
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expr $(VERSION) \* 256 + $(PATCHLEVEL)); \
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echo '#define EXTRAVERSION ' $(EXTRAVERSION); \
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echo '#define VERSION_STRING "'$(VERSION).$(PATCHLEVEL).$(EXTRAVERSION)'"'; \
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echo '#define FILE_VERSION '$(FILE_VERSION); \
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) > $1
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endef
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define update_version.h
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($(call make_version.h, $@.tmp); \
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if [ -r $@ ] && cmp -s $@ $@.tmp; then \
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rm -f $@.tmp; \
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else \
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echo ' UPDATE $@'; \
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mv -f $@.tmp $@; \
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fi);
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endef
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VERSION_FILE = $(obj)/ep_version.h
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$(VERSION_FILE): force
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$(Q)$(N)$(call update_version.h)
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define update_dir
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(echo $1 > $@.tmp; \
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if [ -r $@ ] && cmp -s $@ $@.tmp; then \
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rm -f $@.tmp; \
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else \
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echo ' UPDATE $@'; \
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mv -f $@.tmp $@; \
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fi);
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endef
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UTEST_DIR = utest
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test: force $(LIBTRACEEVENT_STATIC)
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$(Q)$(call descend,$(UTEST_DIR),test)
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VIM_TAGS = $(obj)/tags
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EMACS_TAGS = $(obj)/TAGS
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$(VIM_TAGS): force
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$(RM) $(VIM_TAGS)
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find $(src) -name '*.[ch]' | (cd $(obj) && xargs ctags --extra=+f --c-kinds=+px \
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--regex-c++='/_PE\(([^,)]*).*/TEP_ERRNO__\1/')
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tags: $(VIM_TAGS)
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$(EMACS_TAGS): force
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$(RM) $(EMACS_TAGS)
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find $(src) -name '*.[ch]' | (cd $(obj) && xargs etags \
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--regex='/_PE(\([^,)]*\).*/TEP_ERRNO__\1/')
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TAGS: $(EMACS_TAGS)
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define build_prefix
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(echo $1 > $@.tmp; \
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if [ -r $@ ] && cmp -s $@ $@.tmp; then \
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rm -f $@.tmp; \
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else \
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$(PRINT_GEN) \
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mv -f $@.tmp $@; \
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fi);
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endef
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BUILD_PREFIX := $(obj)/build_prefix
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$(BUILD_PREFIX): force
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$(Q)$(call build_prefix,$(prefix))
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define do_make_pkgconfig_file
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cp -f ${PKG_CONFIG_SOURCE_FILE}.template ${PKG_CONFIG_FILE}; \
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sed -i "s|INSTALL_PREFIX|${1}|g" ${PKG_CONFIG_FILE}; \
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sed -i "s|LIB_VERSION|${EVENT_PARSE_VERSION}|g" ${PKG_CONFIG_FILE}; \
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sed -i "s|LIB_DIR|${libdir_relative}|g" ${PKG_CONFIG_FILE}; \
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sed -i "s|HEADER_DIR|$(includedir_relative)|g" ${PKG_CONFIG_FILE};
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endef
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$(PKG_CONFIG_FILE) : ${PKG_CONFIG_SOURCE_FILE}.template $(BUILD_PREFIX) $(VERSION_FILE)
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$(Q)$(print_gen)$(call do_make_pkgconfig_file,$(prefix))
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define do_install_pkgconfig_file
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if [ -n "${pkgconfig_dir}" ]; then \
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$(call do_install,$(PKG_CONFIG_FILE),$(pkgconfig_dir),644); \
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else \
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(echo Failed to locate pkg-config directory) 1>&2; \
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fi
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endef
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ifeq ("$(DESTDIR)", "")
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# If DESTDIR is not defined, then test if after installing the library
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# and running ldconfig, if the library is visible by ld.so.
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# If not, add the path to /etc/ld.so.conf.d/trace.conf and run ldconfig again.
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define install_ld_config
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if $(LDCONFIG); then \
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if ! grep -q "^$(libdir)$$" $(LD_SO_CONF_PATH)/* ; then \
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$(CC) -o $(objtree)/test $(srctree)/test.c -I $(includedir_SQ) \
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-L $(libdir_SQ) -ltraceevent &> /dev/null; \
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if ! $(objtree)/test &> /dev/null; then \
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$(call print_install, trace.conf, $(LD_SO_CONF_PATH)) \
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echo $(libdir_SQ) >> $(LD_SO_CONF_PATH)/trace.conf; \
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$(LDCONFIG); \
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fi; \
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$(RM) $(objtree)/test; \
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fi; \
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fi
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endef
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else
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# If installing to a location for another machine or package, do not bother
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# with running ldconfig.
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define install_ld_config
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endef
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endif # DESTDIR = ""
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install: install_libs install_plugins
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install_libs: libs install_headers install_pkgconfig
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$(Q)$(call do_install,$(LIBTRACEEVENT_SHARED),$(libdir_SQ)); \
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cp -fpR $(LIB_INSTALL) $(DESTDIR)$(libdir_SQ)
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$(Q)$(call install_ld_config)
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install_pkgconfig: $(PKG_CONFIG_FILE)
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$(Q)$(call do_install_pkgconfig_file,$(prefix))
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install_headers:
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$(Q)$(call do_install,$(EP_HEADERS_DIR)/event-parse.h,$(includedir_SQ),644);
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$(Q)$(call do_install,$(EP_HEADERS_DIR)/event-utils.h,$(includedir_SQ),644);
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$(Q)$(call do_install,$(EP_HEADERS_DIR)/trace-seq.h,$(includedir_SQ),644);
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$(Q)$(call do_install,$(EP_HEADERS_DIR)/kbuffer.h,$(includedir_SQ),644)
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install: install_libs
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clean: clean_plugins clean_src
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$(Q)$(call do_clean,\
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$(VERSION_FILE) $(obj)/tags $(obj)/TAGS $(PKG_CONFIG_FILE) \
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$(LIBTRACEEVENT_STATIC) $(LIBTRACEEVENT_SHARED) \
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$(LIBTRACEEVENT_SHARED_SO) $(LIBTRACEEVENT_SHARED_VERSION) \
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$(BUILD_PREFIX))
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define build_uninstall_script
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$(Q)mkdir $(BUILD_OUTPUT)/tmp_build
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$(Q)$(MAKE) -C $(srctree) DESTDIR=$(BUILD_OUTPUT)/tmp_build/ O=$(BUILD_OUTPUT) $1 > /dev/null
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$(Q)find $(BUILD_OUTPUT)/tmp_build ! -type d -printf "%P\n" > $(BUILD_OUTPUT)/build_$2
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$(Q)$(RM) -rf $(BUILD_OUTPUT)/tmp_build
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endef
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build_uninstall: $(BUILD_PREFIX)
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$(call build_uninstall_script,install,uninstall)
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$(BUILD_OUTPUT)/build_uninstall: build_uninstall
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define uninstall_file
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if [ -f $(DESTDIR)/$1 -o -h $(DESTDIR)/$1 ]; then \
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$(call PRINT_UNINST,$(DESTDIR)$1)$(RM) $(DESTDIR)/$1; \
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fi;
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endef
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uninstall: $(BUILD_OUTPUT)/build_uninstall
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@$(foreach file,$(shell cat $(BUILD_OUTPUT)/build_uninstall),$(call uninstall_file,$(file)))
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PHONY += doc
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doc: check_doc
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$(Q)$(call descend,$(src)/Documentation,)
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PHONY += doc-clean
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doc-clean:
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$(MAKE) -C $(src)/Documentation clean
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PHONY += doc-install
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doc-install:
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$(Q)$(call descend,$(src)/Documentation,install)
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check_doc: force
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$(Q)$(src)/check-manpages.sh $(src)/Documentation
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PHONY += doc-uninstall
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doc-uninstall:
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$(MAKE) -C $(src)/Documentation uninstall
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PHONY += help
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help:
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@echo 'Possible targets:'
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@echo''
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@echo ' all - default, compile the library and the'\
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'plugins'
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@echo ' plugins - compile the plugins'
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@echo ' install - install the library, the plugins,'\
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'the header and pkgconfig files'
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@echo ' clean - clean the library and the plugins object files'
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@echo ' doc - compile the documentation files - man'\
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'and html pages, in the Documentation directory'
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@echo ' doc-clean - clean the documentation files'
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@echo ' doc-install - install the man pages'
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@echo ' doc-uninstall - uninstall the man pages'
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@echo''
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PHONY += plugins
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plugins:
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$(Q)$(call descend,plugins,)
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PHONY += install_plugins
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install_plugins: plugins
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$(Q)$(call descend,plugins,install)
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samples: libtraceevent.a force
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$(Q)$(call descend,$(src)/samples,all)
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PHONY += clean_plugins
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clean_plugins:
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$(Q)$(call descend_clean,plugins)
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PHONY += clean_src
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clean_src:
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$(Q)$(call descend_clean,src)
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force:
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# Declare the contents of the .PHONY variable as phony. We keep that
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# information in a variable so we can use it in if_changed and friends.
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.PHONY: $(PHONY)
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