Makefile - haproxy - Gitiles

 # This GNU Makefile supports different OS and CPU combinations.
 #
 # You should use it this way :
 #   [g]make TARGET=os CPU=cpu USE_xxx=1 ...
 #
 # Valid USE_* options are the following. Most of them are automatically set by
 # the TARGET, others have to be explictly specified :
 #   USE_CTTPROXY         : enable CTTPROXY on Linux (needs kernel patch).
 #   USE_EPOLL            : enable epoll() on Linux 2.6. Automatic.
 #   USE_EPOLL_WORKAROUND : enable epoll() bug workaround. Automatic.
 #   USE_GETSOCKNAME      : enable getsockname() on Linux 2.2. Automatic.
 #   USE_KQUEUE           : enable kqueue() on BSD. Automatic.
 #   USE_MY_EPOLL         : redefine epoll_* syscalls. Automatic.
 #   USE_NETFILTER        : enable netfilter on Linux. Automatic.
 #   USE_PCRE             : enable use of libpcre for regex. Recommended.
 #   USE_POLL             : enable poll(). Automatic.
 #   USE_REGPARM          : enable regparm optimization. Recommended on x86.
 #   USE_SEPOLL           : enable speculative epoll(). Automatic.
 #   USE_STATIC_PCRE      : enable static libpcre. Recommended.
 #   USE_TCPSPLICE        : enable tcp_splice() on Linux (needs kernel patch).
 #   USE_TPROXY           : enable transparent proxy. Automatic.
 #
 # Options can be forced by specifying "USE_xxx=1" or can be disabled by using
 # "USE_xxx=" (empty string).
 #
 # Variables useful for packagers :
 #   CC is set to "gcc" by default and is used for compilation only.
 #   LD is set to "gcc" by default and is used for linking only.
 #   CFLAGS is automatically set for the specified CPU and may be overridden.
 #   LDFLAGS is automatically set to -g and may be overridden.
 #   SMALL_OPTS may be used to specify some options to shrink memory usage.
 #   DEBUG may be used to set some internal debugging options.
 #   ADDINC may be used to complete the include path in the form -Ipath.
 #   ADDLIB may be used to complete the library list in the form -Lpath -llib.
 #   DEFINE may be used to specify any additional define, which will be reported
 #          by "haproxy -vv" in CFLAGS.
 #   SILENT_DEFINE may be used to specify other defines which will not be
 #     reported by "haproxy -vv".
 #
 # Other variables :
 #   DLMALLOC_SRC   : build with dlmalloc, indicate the location of dlmalloc.c.
 #   DLMALLOC_THRES : should match PAGE_SIZE on every platform (default: 4096).
 #   PCREDIR        : force the path to libpcre.
 #   IGNOREGIT      : ignore GIT commit versions if set.
 #   VERSION        : force haproxy version reporting.
 #   SUBVERS        : add a sub-version (eg: platform, model, ...).
 #   VERDATE        : force haproxy's release date.


 #### TARGET system
 # Use TARGET=<target_name> to optimize for a specifc target OS among the
 # following list (use the default "generic" if uncertain) :
 #    generic, linux22, linux24, linux24e, linux24eold, linux26, solaris,
 #    freebsd, openbsd, custom
 TARGET = generic

 #### TARGET CPU
 # Use CPU=<cpu_name> to optimize for a particular CPU, among the following
 # list :
 #    generic, i586, i686, ultrasparc, custom
 CPU = generic

 #### Toolchain options.
 # GCC is normally used both for compiling and linking.
 CC = gcc
 LD = gcc

 #### Debug flags (typically "-g").
 # Those flags only feed CFLAGS so it is not mandatory to use this form.
 DEBUG_CFLAGS = -g

 #### Memory usage tuning
 # If small memory footprint is required, you can reduce the buffer size. There
 # are 2 buffers per concurrent session, so 16 kB buffers will eat 32 MB memory
 # with 1000 concurrent sessions. Putting it slightly lower than a page size
 # will prevent the additional parameters to go beyond a page. 8030 bytes is
 # exactly 5.5 TCP segments of 1460 bytes and is generally good. Useful tuning
 # macros include :
 #    SYSTEM_MAXCONN, BUFSIZE, MAXREWRITE, REQURI_LEN, CAPTURE_LEN.
 # Example: SMALL_OPTS = -DBUFSIZE=8030 -DMAXREWRITE=1030 -DSYSTEM_MAXCONN=1024
 SMALL_OPTS =

 #### Debug settings
 # You can enable debugging on specific code parts by setting DEBUG=-DDEBUG_xxx.
 # Currently defined DEBUG macros include DEBUG_FULL, DEBUG_MEMORY, DEBUG_FSM,
 # DEBUG_HASH and DEBUG_PARSE_NO_SPEEDUP. Please consult sources for exact
 # meaning or do not use at all.
 DEBUG =

 #### Additional include and library dirs
 # Redefine this if you want to add some special PATH to include/libs
 ADDINC =
 ADDLIB =

 #### Specific macro definitions
 # Use DEFINE=-Dxxx to set any tunable macro. Anything declared here will appear
 # in the build options reported by "haproxy -vv". Use SILENT_DEFINE if you do
 # not want to pollute the report with complex defines.
 DEFINE =
 SILENT_DEFINE =


 #### CPU dependant optimizations
 # Some CFLAGS are set by default depending on the target CPU. Those flags only
 # feed CPU_CFLAGS, which in turn feed CFLAGS, so it is not mandatory to use
 # them. You should not have to change these options. Better use CPU_CFLAGS or
 # even CFLAGS instead.
 CPU_CFLAGS.generic    = -O2
 CPU_CFLAGS.i586       = -O2 -march=i586
 CPU_CFLAGS.i686       = -O2 -march=i686
 CPU_CFLAGS.ultrasparc = -O6 -mcpu=v9 -mtune=ultrasparc
 CPU_CFLAGS            = $(CPU_CFLAGS.$(CPU))

 #### Common CFLAGS
 # These CFLAGS contain general optimization options, CPU-specific optimizations
 # and debug flags. They may be overridden by some distributions which prefer to
 # set all of them at once instead of playing with the CPU and DEBUG variables.
 CFLAGS = $(CPU_CFLAGS) $(DEBUG_CFLAGS)

 #### Common LDFLAGS
 # These LDFLAGS are used as the first "ld" options, regardless of any library
 # path or any other option. They may be changed to add any linker-specific
 # option at the beginning of the ld command line.
 LDFLAGS = -g

 #### Target system options
 # Depending on the target platform, some options are set, as well as some
 # CFLAGS and LDFLAGS. The USE_* values are set to "implicit" so that they are
 # not reported in the build options string. You should not have to change
 # anything there.
 ifeq ($(TARGET),generic)
   # generic system target has nothing specific
   USE_POLL   = implicit
   USE_TPROXY = implicit
 else
 ifeq ($(TARGET),linux22)
   # This is for Linux 2.2
   USE_GETSOCKNAME = implicit
   USE_POLL        = implicit
   USE_TPROXY      = implicit
 else
 ifeq ($(TARGET),linux24)
   # This is for standard Linux 2.4 with netfilter but without epoll()
   USE_GETSOCKNAME = implicit
   USE_NETFILTER   = implicit
   USE_POLL        = implicit
   USE_TPROXY      = implicit
 else
 ifeq ($(TARGET),linux24e)
   # This is for enhanced Linux 2.4 with netfilter and epoll() patch > 0.21
   USE_GETSOCKNAME = implicit
   USE_NETFILTER   = implicit
   USE_POLL        = implicit
   USE_EPOLL       = implicit
   USE_SEPOLL      = implicit
   USE_MY_EPOLL    = implicit
   USE_TPROXY      = implicit
 else
 ifeq ($(TARGET),linux24eold)
   # This is for enhanced Linux 2.4 with netfilter and epoll() patch <= 0.21,
   # which needs a workaround for a very rare bug.
   USE_GETSOCKNAME      = implicit
   USE_NETFILTER        = implicit
   USE_POLL             = implicit
   USE_EPOLL            = implicit
   USE_SEPOLL           = implicit
   USE_MY_EPOLL         = implicit
   USE_EPOLL_WORKAROUND = implicit
   USE_TPROXY           = implicit
 else
 ifeq ($(TARGET),linux26)
   # This is for standard Linux 2.6 with netfilter and standard epoll()
   USE_GETSOCKNAME = implicit
   USE_NETFILTER   = implicit
   USE_POLL        = implicit
   USE_EPOLL       = implicit
   USE_SEPOLL      = implicit
   USE_TPROXY      = implicit
 else
 ifeq ($(TARGET),solaris)
   # This is for Solaris 8
   USE_POLL       = implicit
   TARGET_CFLAGS  = -fomit-frame-pointer -DFD_SETSIZE=65536 -D_REENTRANT
   TARGET_LDFLAGS = -lnsl -lsocket
   USE_TPROXY     = implicit
 else
 ifeq ($(TARGET),freebsd)
   # This is for FreeBSD
   USE_POLL       = implicit
   USE_KQUEUE     = implicit
   USE_TPROXY     = implicit
 else
 ifeq ($(TARGET),openbsd)
   # This is for OpenBSD >= 3.0
   USE_POLL       = implicit
   USE_KQUEUE     = implicit
   USE_TPROXY     = implicit
 endif # openbsd
 endif # freebsd
 endif # solaris
 endif # linux26
 endif # linux24eold
 endif # linux24e
 endif # linux24
 endif # linux22
 endif # generic


 #### Old-style REGEX library settings for compatibility with previous setups.
 # It is still possible to use REGEX=<regex_lib> to select an alternative regex
 # library. By default, we use libc's regex. On Solaris 8/Sparc, grouping seems
 # to be broken using libc, so consider using pcre instead. Supported values are
 # "libc", "pcre", and "static-pcre". Use of this method is deprecated in favor
 # of "USE_PCRE" and "USE_STATIC_PCRE" (see build options below).
 REGEX = libc

 ifeq ($(REGEX),pcre)
 USE_PCRE = 1
 $(warning WARNING! use of "REGEX=pcre" is deprecated, consider using "USE_PCRE=1" instead.)
 endif

 ifeq ($(REGEX),static-pcre)
 USE_STATIC_PCRE = 1
 $(warning WARNING! use of "REGEX=pcre-static" is deprecated, consider using "USE_STATIC_PCRE=1" instead.)
 endif

 #### Old-style TPROXY settings
 ifneq ($(findstring -DTPROXY,$(DEFINE)),)
 USE_TPROXY = 1
 $(warning WARNING! use of "DEFINE=-DTPROXY" is deprecated, consider using "USE_TPROXY=1" instead.)
 endif


 #### Determine version, sub-version and release date.
 # If GIT is found, and IGNOREGIT is not set, VERSION, SUBVERS and VERDATE are
 # extracted from the last commit. Otherwise, use the contents of the files
 # holding the same names in the current directory.

 ifeq ($(IGNOREGIT),)
 VERSION := $(shell [ -d .git/. ] && ref=`(git-describe --tags) 2>/dev/null` && ref=$${ref%-g*} && echo "$${ref\#v}")
 ifneq ($(VERSION),)
 # OK git is there and works.
 SUBVERS := $(shell comms=`git-log --no-merges v$(VERSION).. 2>/dev/null |grep -c ^commit `; [ $$comms -gt 0 ] && echo "-$$comms" )
 VERDATE := $(shell date +%Y/%m/%d -d "`git-log HEAD^.. 2>/dev/null | grep -m 1 ^Date: | cut -f2- -d: | cut -f1 -d+`" )
 endif
 endif

 # Last commit version not found, take it from the files.
 ifeq ($(VERSION),)
 VERSION := $(shell cat VERSION 2>/dev/null || touch VERSION)
 endif
 ifeq ($(SUBVERS),)
 SUBVERS := $(shell cat SUBVERS 2>/dev/null || touch SUBVERS)
 endif
 ifeq ($(VERDATE),)
 VERDATE := $(shell cat VERDATE 2>/dev/null || touch VERDATE)
 endif

 #### Build options
 # Do not change these ones, enable USE_* variables instead.
 OPTIONS_CFLAGS  =
 OPTIONS_LDFLAGS =
 OPTIONS_OBJS    =

 # This variable collects all USE_* values except those set to "implicit". This
 # is used to report a list of all flags which were used to build this version.
 # Do not assign anything to it.
 BUILD_OPTIONS =

 # Return USE_xxx=$(USE_xxx) unless $(USE_xxx) = "implicit"
 # Usage:
 #   BUILD_OPTIONS += $(call ignore_implicit,USE_xxx)
 ignore_implicit = $(patsubst %=implicit,,$(1)=$($(1)))

 ifneq ($(USE_TCPSPLICE),)
 # This is the directory hosting libtcpsplice.[ah]
 TCPSPLICEDIR    :=
 OPTIONS_CFLAGS  += -DCONFIG_HAP_TCPSPLICE -I$(TCPSPLICEDIR)
 OPTIONS_LDFLAGS += -L$(TCPSPLICEDIR) -ltcpsplice
 BUILD_OPTIONS   += $(call ignore_implicit,USE_TCPSPLICE)
 endif

 ifneq ($(USE_CTTPROXY),)
 OPTIONS_CFLAGS += -DCONFIG_HAP_CTTPROXY
 OPTIONS_OBJS   += src/cttproxy.o
 BUILD_OPTIONS  += $(call ignore_implicit,USE_CTTPROXY)
 endif

 ifneq ($(USE_TPROXY),)
 OPTIONS_CFLAGS += -DTPROXY
 BUILD_OPTIONS  += $(call ignore_implicit,USE_TPROXY)
 endif

 ifneq ($(USE_POLL),)
 OPTIONS_CFLAGS += -DENABLE_POLL
 OPTIONS_OBJS   += src/ev_poll.o
 BUILD_OPTIONS  += $(call ignore_implicit,USE_POLL)
 endif

 ifneq ($(USE_EPOLL),)
 OPTIONS_CFLAGS += -DENABLE_EPOLL
 OPTIONS_OBJS   += src/ev_epoll.o
 BUILD_OPTIONS  += $(call ignore_implicit,USE_EPOLL)
 endif

 ifneq ($(USE_SEPOLL),)
 OPTIONS_CFLAGS += -DENABLE_SEPOLL
 OPTIONS_OBJS   += src/ev_sepoll.o
 BUILD_OPTIONS  += $(call ignore_implicit,USE_SEPOLL)
 endif

 ifneq ($(USE_MY_EPOLL),)
 OPTIONS_CFLAGS += -DUSE_MY_EPOLL
 BUILD_OPTIONS  += $(call ignore_implicit,USE_MY_EPOLL)
 endif

 ifneq ($(USE_KQUEUE),)
 OPTIONS_CFLAGS += -DENABLE_KQUEUE
 OPTIONS_OBJS   += src/ev_kqueue.o
 BUILD_OPTIONS  += $(call ignore_implicit,USE_KQUEUE)
 endif

 ifneq ($(USE_NETFILTER),)
 OPTIONS_CFLAGS += -DNETFILTER
 BUILD_OPTIONS  += $(call ignore_implicit,USE_NETFILTER)
 endif

 ifneq ($(USE_EPOLL_WORKAROUND),)
 OPTIONS_CFLAGS += -DEPOLL_CTL_MOD_WORKAROUND
 BUILD_OPTIONS  += $(call ignore_implicit,USE_EPOLL_WORKAROUND)
 endif

 ifneq ($(USE_GETSOCKNAME),)
 OPTIONS_CFLAGS += -DUSE_GETSOCKNAME
 BUILD_OPTIONS  += $(call ignore_implicit,USE_GETSOCKNAME)
 endif

 ifneq ($(USE_REGPARM),)
 OPTIONS_CFLAGS += -DCONFIG_HAP_USE_REGPARM
 BUILD_OPTIONS  += $(call ignore_implicit,USE_REGPARM)
 endif

 ifneq ($(DLMALLOC_SRC),)
 # May be changed to match PAGE_SIZE on every platform
 DLMALLOC_THRES = 4096
 OPTIONS_OBJS  += src/dlmalloc.o
 BUILD_OPTIONS += DLMALLOC_SRC=$(DLMALLOC_SRC)
 endif

 ifneq ($(USE_PCRE),)
 # PCREDIR is the directory hosting include/pcre.h and lib/libpcre.*. It is
 # automatically detected but can be forced if required.
 ifeq ($(PCREDIR),)
 PCREDIR	        := $(shell pcre-config --prefix 2>/dev/null || echo /usr/local)
 endif
 OPTIONS_CFLAGS  += -DUSE_PCRE -I$(PCREDIR)/include
 OPTIONS_LDFLAGS += -L$(PCREDIR)/lib -lpcreposix -lpcre
 BUILD_OPTIONS   += $(call ignore_implicit,USE_PCRE)
 endif

 ifneq ($(USE_STATIC_PCRE),)
 # PCREDIR is the directory hosting include/pcre.h and lib/libpcre.*. It is
 # automatically detected but can be forced if required.
 ifeq ($(PCREDIR),)
 PCREDIR         := $(shell pcre-config --prefix 2>/dev/null || echo /usr/local)
 endif
 OPTIONS_CFLAGS  += -DUSE_PCRE -I$(PCREDIR)/include
 OPTIONS_LDFLAGS += -L$(PCREDIR)/lib -Wl,-Bstatic -lpcreposix -lpcre -Wl,-Bdynamic
 BUILD_OPTIONS   += $(call ignore_implicit,USE_STATIC_PCRE)
 endif


 #### Global compile options
 VERBOSE_CFLAGS = $(CFLAGS) $(TARGET_CFLAGS) $(SMALL_OPTS) $(DEFINE)
 COPTS  = -Iinclude -Wall
 COPTS += $(CFLAGS) $(TARGET_CFLAGS) $(SMALL_OPTS) $(DEFINE) $(SILENT_DEFINE)
 COPTS += $(DEBUG) $(OPTIONS_CFLAGS) $(ADDINC)

 ifneq ($(VERSION)$(SUBVERS),)
 COPTS += -DCONFIG_HAPROXY_VERSION=\"$(VERSION)$(SUBVERS)\"
 endif

 ifneq ($(VERDATE),)
 COPTS += -DCONFIG_HAPROXY_DATE=\"$(VERDATE)\"
 endif

 #### Global link options
 # These options are added at the end of the "ld" command line. Use LDFLAGS to
 # add options at the beginning of the "ld" command line if needed.
 LDOPTS = $(TARGET_LDFLAGS) $(OPTIONS_LDFLAGS) $(ADDLIB)


 all: haproxy

 OBJS = src/haproxy.o src/sessionhash.o src/base64.o src/protocols.o \
        src/uri_auth.o src/standard.o src/buffers.o src/log.o src/task.o \
        src/time.o src/fd.o src/regex.o src/cfgparse.o src/server.o \
        src/checks.o src/queue.o src/client.o src/proxy.o src/proto_uxst.o \
        src/proto_http.o src/stream_sock.o src/appsession.o src/backend.o \
        src/senddata.o src/dumpstats.o src/proto_tcp.o \
        src/session.o src/hdr_idx.o src/ev_select.o \
        src/acl.o src/memory.o \
        src/ebtree.o src/eb32tree.o

 haproxy: $(OBJS) $(OPTIONS_OBJS)
 	$(LD) $(LDFLAGS) -o $@ $^ $(LDOPTS)

 objsize: haproxy
 	@objdump -t $^|grep ' g '|grep -F '.text'|awk '{print $$5 FS $$6}'|sort

 %.o:	%.c
 	$(CC) $(COPTS) -c -o $@ $<

 src/haproxy.o:	src/haproxy.c
 	$(CC) $(COPTS) \
 	      -DBUILD_TARGET='"$(strip $(TARGET))"' \
 	      -DBUILD_CPU='"$(strip $(CPU))"' \
 	      -DBUILD_CC='"$(strip $(CC))"' \
 	      -DBUILD_CFLAGS='"$(strip $(VERBOSE_CFLAGS))"' \
 	      -DBUILD_OPTIONS='"$(strip $(BUILD_OPTIONS))"' \
 	       -c -o $@ $<

 src/dlmalloc.o: $(DLMALLOC_SRC)
 	$(CC) $(COPTS) -DDEFAULT_MMAP_THRESHOLD=$(DLMALLOC_THRES) -c -o $@ $<

 clean:
 	rm -f *.[oas] src/*.[oas] core haproxy test
 	for dir in . src include/* doc; do rm -f $$dir/*~ $$dir/*.rej;done
 	rm -f haproxy-$(VERSION).tar.gz haproxy-$(VERSION)$(SUBVERS).tar.gz
 	rm -f haproxy-$(VERSION) nohup.out gmon.out

 tar:	clean
 	ln -s . haproxy-$(VERSION)
 	tar --exclude=haproxy-$(VERSION)/.git \
 	    --exclude=haproxy-$(VERSION)/haproxy-$(VERSION) \
 	    --exclude=haproxy-$(VERSION)/haproxy-$(VERSION).tar.gz \
 	    -cf - haproxy-$(VERSION)/* | gzip -c9 >haproxy-$(VERSION).tar.gz
 	rm -f haproxy-$(VERSION)

 git-tar: clean
 	git-tar-tree HEAD haproxy-$(VERSION) | gzip -9 > haproxy-$(VERSION)$(SUBVERS).tar.gz

 version:
 	@echo "VERSION: $(VERSION)"
 	@echo "SUBVERS: $(SUBVERS)"
 	@echo "VERDATE: $(VERDATE)"

 # never use this one if you don't know what it is used for.
 update-version:
 	@echo "Ready to update the following versions :"
 	@echo "VERSION: $(VERSION)"
 	@echo "SUBVERS: $(SUBVERS)"
 	@echo "VERDATE: $(VERDATE)"
 	@echo "Press [ENTER] to continue or Ctrl-C to abort now.";read
 	echo "$(VERSION)" > VERSION
 	echo "$(SUBVERS)" > SUBVERS
 	echo "$(VERDATE)" > VERDATE
	# This GNU Makefile supports different OS and CPU combinations.
	#
	# You should use it this way :
	# [g]make TARGET=os CPU=cpu USE_xxx=1 ...
	#
	# Valid USE_* options are the following. Most of them are automatically set by
	# the TARGET, others have to be explictly specified :
	# USE_CTTPROXY : enable CTTPROXY on Linux (needs kernel patch).
	# USE_EPOLL : enable epoll() on Linux 2.6. Automatic.
	# USE_EPOLL_WORKAROUND : enable epoll() bug workaround. Automatic.
	# USE_GETSOCKNAME : enable getsockname() on Linux 2.2. Automatic.
	# USE_KQUEUE : enable kqueue() on BSD. Automatic.
	# USE_MY_EPOLL : redefine epoll_* syscalls. Automatic.
	# USE_NETFILTER : enable netfilter on Linux. Automatic.
	# USE_PCRE : enable use of libpcre for regex. Recommended.
	# USE_POLL : enable poll(). Automatic.
	# USE_REGPARM : enable regparm optimization. Recommended on x86.
	# USE_SEPOLL : enable speculative epoll(). Automatic.
	# USE_STATIC_PCRE : enable static libpcre. Recommended.
	# USE_TCPSPLICE : enable tcp_splice() on Linux (needs kernel patch).
	# USE_TPROXY : enable transparent proxy. Automatic.
	#
	# Options can be forced by specifying "USE_xxx=1" or can be disabled by using
	# "USE_xxx=" (empty string).
	#
	# Variables useful for packagers :
	# CC is set to "gcc" by default and is used for compilation only.
	# LD is set to "gcc" by default and is used for linking only.
	# CFLAGS is automatically set for the specified CPU and may be overridden.
	# LDFLAGS is automatically set to -g and may be overridden.
	# SMALL_OPTS may be used to specify some options to shrink memory usage.
	# DEBUG may be used to set some internal debugging options.
	# ADDINC may be used to complete the include path in the form -Ipath.
	# ADDLIB may be used to complete the library list in the form -Lpath -llib.
	# DEFINE may be used to specify any additional define, which will be reported
	# by "haproxy -vv" in CFLAGS.
	# SILENT_DEFINE may be used to specify other defines which will not be
	# reported by "haproxy -vv".
	#
	# Other variables :
	# DLMALLOC_SRC : build with dlmalloc, indicate the location of dlmalloc.c.
	# DLMALLOC_THRES : should match PAGE_SIZE on every platform (default: 4096).
	# PCREDIR : force the path to libpcre.
	# IGNOREGIT : ignore GIT commit versions if set.
	# VERSION : force haproxy version reporting.
	# SUBVERS : add a sub-version (eg: platform, model, ...).
	# VERDATE : force haproxy's release date.


	#### TARGET system
	# Use TARGET=<target_name> to optimize for a specifc target OS among the
	# following list (use the default "generic" if uncertain) :
	# generic, linux22, linux24, linux24e, linux24eold, linux26, solaris,
	# freebsd, openbsd, custom
	TARGET = generic

	#### TARGET CPU
	# Use CPU=<cpu_name> to optimize for a particular CPU, among the following
	# list :
	# generic, i586, i686, ultrasparc, custom
	CPU = generic

	#### Toolchain options.
	# GCC is normally used both for compiling and linking.
	CC = gcc
	LD = gcc

	#### Debug flags (typically "-g").
	# Those flags only feed CFLAGS so it is not mandatory to use this form.
	DEBUG_CFLAGS = -g

	#### Memory usage tuning
	# If small memory footprint is required, you can reduce the buffer size. There
	# are 2 buffers per concurrent session, so 16 kB buffers will eat 32 MB memory
	# with 1000 concurrent sessions. Putting it slightly lower than a page size
	# will prevent the additional parameters to go beyond a page. 8030 bytes is
	# exactly 5.5 TCP segments of 1460 bytes and is generally good. Useful tuning
	# macros include :
	# SYSTEM_MAXCONN, BUFSIZE, MAXREWRITE, REQURI_LEN, CAPTURE_LEN.
	# Example: SMALL_OPTS = -DBUFSIZE=8030 -DMAXREWRITE=1030 -DSYSTEM_MAXCONN=1024
	SMALL_OPTS =

	#### Debug settings
	# You can enable debugging on specific code parts by setting DEBUG=-DDEBUG_xxx.
	# Currently defined DEBUG macros include DEBUG_FULL, DEBUG_MEMORY, DEBUG_FSM,
	# DEBUG_HASH and DEBUG_PARSE_NO_SPEEDUP. Please consult sources for exact
	# meaning or do not use at all.
	DEBUG =

	#### Additional include and library dirs
	# Redefine this if you want to add some special PATH to include/libs
	ADDINC =
	ADDLIB =

	#### Specific macro definitions
	# Use DEFINE=-Dxxx to set any tunable macro. Anything declared here will appear
	# in the build options reported by "haproxy -vv". Use SILENT_DEFINE if you do
	# not want to pollute the report with complex defines.
	DEFINE =
	SILENT_DEFINE =


	#### CPU dependant optimizations
	# Some CFLAGS are set by default depending on the target CPU. Those flags only
	# feed CPU_CFLAGS, which in turn feed CFLAGS, so it is not mandatory to use
	# them. You should not have to change these options. Better use CPU_CFLAGS or
	# even CFLAGS instead.
	CPU_CFLAGS.generic = -O2
	CPU_CFLAGS.i586 = -O2 -march=i586
	CPU_CFLAGS.i686 = -O2 -march=i686
	CPU_CFLAGS.ultrasparc = -O6 -mcpu=v9 -mtune=ultrasparc
	CPU_CFLAGS = $(CPU_CFLAGS.$(CPU))

	#### Common CFLAGS
	# These CFLAGS contain general optimization options, CPU-specific optimizations
	# and debug flags. They may be overridden by some distributions which prefer to
	# set all of them at once instead of playing with the CPU and DEBUG variables.
	CFLAGS = $(CPU_CFLAGS) $(DEBUG_CFLAGS)

	#### Common LDFLAGS
	# These LDFLAGS are used as the first "ld" options, regardless of any library
	# path or any other option. They may be changed to add any linker-specific
	# option at the beginning of the ld command line.
	LDFLAGS = -g

	#### Target system options
	# Depending on the target platform, some options are set, as well as some
	# CFLAGS and LDFLAGS. The USE_* values are set to "implicit" so that they are
	# not reported in the build options string. You should not have to change
	# anything there.
	ifeq ($(TARGET),generic)
	# generic system target has nothing specific
	USE_POLL = implicit
	USE_TPROXY = implicit
	else
	ifeq ($(TARGET),linux22)
	# This is for Linux 2.2
	USE_GETSOCKNAME = implicit
	USE_POLL = implicit
	USE_TPROXY = implicit
	else
	ifeq ($(TARGET),linux24)
	# This is for standard Linux 2.4 with netfilter but without epoll()
	USE_GETSOCKNAME = implicit
	USE_NETFILTER = implicit
	USE_POLL = implicit
	USE_TPROXY = implicit
	else
	ifeq ($(TARGET),linux24e)
	# This is for enhanced Linux 2.4 with netfilter and epoll() patch > 0.21
	USE_GETSOCKNAME = implicit
	USE_NETFILTER = implicit
	USE_POLL = implicit
	USE_EPOLL = implicit
	USE_SEPOLL = implicit
	USE_MY_EPOLL = implicit
	USE_TPROXY = implicit
	else
	ifeq ($(TARGET),linux24eold)
	# This is for enhanced Linux 2.4 with netfilter and epoll() patch <= 0.21,
	# which needs a workaround for a very rare bug.
	USE_GETSOCKNAME = implicit
	USE_NETFILTER = implicit
	USE_POLL = implicit
	USE_EPOLL = implicit
	USE_SEPOLL = implicit
	USE_MY_EPOLL = implicit
	USE_EPOLL_WORKAROUND = implicit
	USE_TPROXY = implicit
	else
	ifeq ($(TARGET),linux26)
	# This is for standard Linux 2.6 with netfilter and standard epoll()
	USE_GETSOCKNAME = implicit
	USE_NETFILTER = implicit
	USE_POLL = implicit
	USE_EPOLL = implicit
	USE_SEPOLL = implicit
	USE_TPROXY = implicit
	else
	ifeq ($(TARGET),solaris)
	# This is for Solaris 8
	USE_POLL = implicit
	TARGET_CFLAGS = -fomit-frame-pointer -DFD_SETSIZE=65536 -D_REENTRANT
	TARGET_LDFLAGS = -lnsl -lsocket
	USE_TPROXY = implicit
	else
	ifeq ($(TARGET),freebsd)
	# This is for FreeBSD
	USE_POLL = implicit
	USE_KQUEUE = implicit
	USE_TPROXY = implicit
	else
	ifeq ($(TARGET),openbsd)
	# This is for OpenBSD >= 3.0
	USE_POLL = implicit
	USE_KQUEUE = implicit
	USE_TPROXY = implicit
	endif # openbsd
	endif # freebsd
	endif # solaris
	endif # linux26
	endif # linux24eold
	endif # linux24e
	endif # linux24
	endif # linux22
	endif # generic


	#### Old-style REGEX library settings for compatibility with previous setups.
	# It is still possible to use REGEX=<regex_lib> to select an alternative regex
	# library. By default, we use libc's regex. On Solaris 8/Sparc, grouping seems
	# to be broken using libc, so consider using pcre instead. Supported values are
	# "libc", "pcre", and "static-pcre". Use of this method is deprecated in favor
	# of "USE_PCRE" and "USE_STATIC_PCRE" (see build options below).
	REGEX = libc

	ifeq ($(REGEX),pcre)
	USE_PCRE = 1
	$(warning WARNING! use of "REGEX=pcre" is deprecated, consider using "USE_PCRE=1" instead.)
	endif

	ifeq ($(REGEX),static-pcre)
	USE_STATIC_PCRE = 1
	$(warning WARNING! use of "REGEX=pcre-static" is deprecated, consider using "USE_STATIC_PCRE=1" instead.)
	endif

	#### Old-style TPROXY settings
	ifneq ($(findstring -DTPROXY,$(DEFINE)),)
	USE_TPROXY = 1
	$(warning WARNING! use of "DEFINE=-DTPROXY" is deprecated, consider using "USE_TPROXY=1" instead.)
	endif


	#### Determine version, sub-version and release date.
	# If GIT is found, and IGNOREGIT is not set, VERSION, SUBVERS and VERDATE are
	# extracted from the last commit. Otherwise, use the contents of the files
	# holding the same names in the current directory.

	ifeq ($(IGNOREGIT),)
	VERSION := $(shell [ -d .git/. ] && ref=`(git-describe --tags) 2>/dev/null` && ref=$${ref%-g*} && echo "$${ref\#v}")
	ifneq ($(VERSION),)
	# OK git is there and works.
	SUBVERS := $(shell comms=`git-log --no-merges v$(VERSION).. 2>/dev/null \|grep -c ^commit `; [ $$comms -gt 0 ] && echo "-$$comms" )
	VERDATE := $(shell date +%Y/%m/%d -d "`git-log HEAD^.. 2>/dev/null \| grep -m 1 ^Date: \| cut -f2- -d: \| cut -f1 -d+`" )
	endif
	endif

	# Last commit version not found, take it from the files.
	ifeq ($(VERSION),)
	VERSION := $(shell cat VERSION 2>/dev/null \|\| touch VERSION)
	endif
	ifeq ($(SUBVERS),)
	SUBVERS := $(shell cat SUBVERS 2>/dev/null \|\| touch SUBVERS)
	endif
	ifeq ($(VERDATE),)
	VERDATE := $(shell cat VERDATE 2>/dev/null \|\| touch VERDATE)
	endif

	#### Build options
	# Do not change these ones, enable USE_* variables instead.
	OPTIONS_CFLAGS =
	OPTIONS_LDFLAGS =
	OPTIONS_OBJS =

	# This variable collects all USE_* values except those set to "implicit". This
	# is used to report a list of all flags which were used to build this version.
	# Do not assign anything to it.
	BUILD_OPTIONS =

	# Return USE_xxx=$(USE_xxx) unless $(USE_xxx) = "implicit"
	# Usage:
	# BUILD_OPTIONS += $(call ignore_implicit,USE_xxx)
	ignore_implicit = $(patsubst %=implicit,,$(1)=$($(1)))

	ifneq ($(USE_TCPSPLICE),)
	# This is the directory hosting libtcpsplice.[ah]
	TCPSPLICEDIR :=
	OPTIONS_CFLAGS += -DCONFIG_HAP_TCPSPLICE -I$(TCPSPLICEDIR)
	OPTIONS_LDFLAGS += -L$(TCPSPLICEDIR) -ltcpsplice
	BUILD_OPTIONS += $(call ignore_implicit,USE_TCPSPLICE)
	endif

	ifneq ($(USE_CTTPROXY),)
	OPTIONS_CFLAGS += -DCONFIG_HAP_CTTPROXY
	OPTIONS_OBJS += src/cttproxy.o
	BUILD_OPTIONS += $(call ignore_implicit,USE_CTTPROXY)
	endif

	ifneq ($(USE_TPROXY),)
	OPTIONS_CFLAGS += -DTPROXY
	BUILD_OPTIONS += $(call ignore_implicit,USE_TPROXY)
	endif

	ifneq ($(USE_POLL),)
	OPTIONS_CFLAGS += -DENABLE_POLL
	OPTIONS_OBJS += src/ev_poll.o
	BUILD_OPTIONS += $(call ignore_implicit,USE_POLL)
	endif

	ifneq ($(USE_EPOLL),)
	OPTIONS_CFLAGS += -DENABLE_EPOLL
	OPTIONS_OBJS += src/ev_epoll.o
	BUILD_OPTIONS += $(call ignore_implicit,USE_EPOLL)
	endif

	ifneq ($(USE_SEPOLL),)
	OPTIONS_CFLAGS += -DENABLE_SEPOLL
	OPTIONS_OBJS += src/ev_sepoll.o
	BUILD_OPTIONS += $(call ignore_implicit,USE_SEPOLL)
	endif

	ifneq ($(USE_MY_EPOLL),)
	OPTIONS_CFLAGS += -DUSE_MY_EPOLL
	BUILD_OPTIONS += $(call ignore_implicit,USE_MY_EPOLL)
	endif

	ifneq ($(USE_KQUEUE),)
	OPTIONS_CFLAGS += -DENABLE_KQUEUE
	OPTIONS_OBJS += src/ev_kqueue.o
	BUILD_OPTIONS += $(call ignore_implicit,USE_KQUEUE)
	endif

	ifneq ($(USE_NETFILTER),)
	OPTIONS_CFLAGS += -DNETFILTER
	BUILD_OPTIONS += $(call ignore_implicit,USE_NETFILTER)
	endif

	ifneq ($(USE_EPOLL_WORKAROUND),)
	OPTIONS_CFLAGS += -DEPOLL_CTL_MOD_WORKAROUND
	BUILD_OPTIONS += $(call ignore_implicit,USE_EPOLL_WORKAROUND)
	endif

	ifneq ($(USE_GETSOCKNAME),)
	OPTIONS_CFLAGS += -DUSE_GETSOCKNAME
	BUILD_OPTIONS += $(call ignore_implicit,USE_GETSOCKNAME)
	endif

	ifneq ($(USE_REGPARM),)
	OPTIONS_CFLAGS += -DCONFIG_HAP_USE_REGPARM
	BUILD_OPTIONS += $(call ignore_implicit,USE_REGPARM)
	endif

	ifneq ($(DLMALLOC_SRC),)
	# May be changed to match PAGE_SIZE on every platform
	DLMALLOC_THRES = 4096
	OPTIONS_OBJS += src/dlmalloc.o
	BUILD_OPTIONS += DLMALLOC_SRC=$(DLMALLOC_SRC)
	endif

	ifneq ($(USE_PCRE),)
	# PCREDIR is the directory hosting include/pcre.h and lib/libpcre.*. It is
	# automatically detected but can be forced if required.
	ifeq ($(PCREDIR),)
	PCREDIR := $(shell pcre-config --prefix 2>/dev/null \|\| echo /usr/local)
	endif
	OPTIONS_CFLAGS += -DUSE_PCRE -I$(PCREDIR)/include
	OPTIONS_LDFLAGS += -L$(PCREDIR)/lib -lpcreposix -lpcre
	BUILD_OPTIONS += $(call ignore_implicit,USE_PCRE)
	endif

	ifneq ($(USE_STATIC_PCRE),)
	# PCREDIR is the directory hosting include/pcre.h and lib/libpcre.*. It is
	# automatically detected but can be forced if required.
	ifeq ($(PCREDIR),)
	PCREDIR := $(shell pcre-config --prefix 2>/dev/null \|\| echo /usr/local)
	endif
	OPTIONS_CFLAGS += -DUSE_PCRE -I$(PCREDIR)/include
	OPTIONS_LDFLAGS += -L$(PCREDIR)/lib -Wl,-Bstatic -lpcreposix -lpcre -Wl,-Bdynamic
	BUILD_OPTIONS += $(call ignore_implicit,USE_STATIC_PCRE)
	endif


	#### Global compile options
	VERBOSE_CFLAGS = $(CFLAGS) $(TARGET_CFLAGS) $(SMALL_OPTS) $(DEFINE)
	COPTS = -Iinclude -Wall
	COPTS += $(CFLAGS) $(TARGET_CFLAGS) $(SMALL_OPTS) $(DEFINE) $(SILENT_DEFINE)
	COPTS += $(DEBUG) $(OPTIONS_CFLAGS) $(ADDINC)

	ifneq ($(VERSION)$(SUBVERS),)
	COPTS += -DCONFIG_HAPROXY_VERSION=\"$(VERSION)$(SUBVERS)\"
	endif

	ifneq ($(VERDATE),)
	COPTS += -DCONFIG_HAPROXY_DATE=\"$(VERDATE)\"
	endif

	#### Global link options
	# These options are added at the end of the "ld" command line. Use LDFLAGS to
	# add options at the beginning of the "ld" command line if needed.
	LDOPTS = $(TARGET_LDFLAGS) $(OPTIONS_LDFLAGS) $(ADDLIB)


	all: haproxy

	OBJS = src/haproxy.o src/sessionhash.o src/base64.o src/protocols.o \
	src/uri_auth.o src/standard.o src/buffers.o src/log.o src/task.o \
	src/time.o src/fd.o src/regex.o src/cfgparse.o src/server.o \
	src/checks.o src/queue.o src/client.o src/proxy.o src/proto_uxst.o \
	src/proto_http.o src/stream_sock.o src/appsession.o src/backend.o \
	src/senddata.o src/dumpstats.o src/proto_tcp.o \
	src/session.o src/hdr_idx.o src/ev_select.o \
	src/acl.o src/memory.o \
	src/ebtree.o src/eb32tree.o

	haproxy: $(OBJS) $(OPTIONS_OBJS)
	$(LD) $(LDFLAGS) -o $@ $^ $(LDOPTS)

	objsize: haproxy
	@objdump -t $^\|grep ' g '\|grep -F '.text'\|awk '{print $$5 FS $$6}'\|sort

	%.o: %.c
	$(CC) $(COPTS) -c -o $@ $<

	src/haproxy.o: src/haproxy.c
	$(CC) $(COPTS) \
	-DBUILD_TARGET='"$(strip $(TARGET))"' \
	-DBUILD_CPU='"$(strip $(CPU))"' \
	-DBUILD_CC='"$(strip $(CC))"' \
	-DBUILD_CFLAGS='"$(strip $(VERBOSE_CFLAGS))"' \
	-DBUILD_OPTIONS='"$(strip $(BUILD_OPTIONS))"' \
	-c -o $@ $<

	src/dlmalloc.o: $(DLMALLOC_SRC)
	$(CC) $(COPTS) -DDEFAULT_MMAP_THRESHOLD=$(DLMALLOC_THRES) -c -o $@ $<

	clean:
	rm -f .[oas] src/.[oas] core haproxy test
	for dir in . src include/* doc; do rm -f $$dir/~ $$dir/.rej;done
	rm -f haproxy-$(VERSION).tar.gz haproxy-$(VERSION)$(SUBVERS).tar.gz
	rm -f haproxy-$(VERSION) nohup.out gmon.out

	tar: clean
	ln -s . haproxy-$(VERSION)
	tar --exclude=haproxy-$(VERSION)/.git \
	--exclude=haproxy-$(VERSION)/haproxy-$(VERSION) \
	--exclude=haproxy-$(VERSION)/haproxy-$(VERSION).tar.gz \
	-cf - haproxy-$(VERSION)/* \| gzip -c9 >haproxy-$(VERSION).tar.gz
	rm -f haproxy-$(VERSION)

	git-tar: clean
	git-tar-tree HEAD haproxy-$(VERSION) \| gzip -9 > haproxy-$(VERSION)$(SUBVERS).tar.gz

	version:
	@echo "VERSION: $(VERSION)"
	@echo "SUBVERS: $(SUBVERS)"
	@echo "VERDATE: $(VERDATE)"

	# never use this one if you don't know what it is used for.
	update-version:
	@echo "Ready to update the following versions :"
	@echo "VERSION: $(VERSION)"
	@echo "SUBVERS: $(SUBVERS)"
	@echo "VERDATE: $(VERDATE)"
	@echo "Press [ENTER] to continue or Ctrl-C to abort now.";read
	echo "$(VERSION)" > VERSION
	echo "$(SUBVERS)" > SUBVERS
	echo "$(VERDATE)" > VERDATE