.. _socket-howto: **************************** Socket Programming HOWTO **************************** :Author: Gordon McMillan .. topic:: Abstract Sockets are used nearly everywhere, but are one of the most severely misunderstood technologies around. This is a 10,000 foot overview of sockets. It's not really a tutorial - you'll still have work to do in getting things operational. It doesn't cover the fine points (and there are a lot of them), but I hope it will give you enough background to begin using them decently. Sockets ======= I'm only going to talk about INET (i.e. IPv4) sockets, but they account for at least 99% of the sockets in use. And I'll only talk about STREAM (i.e. TCP) sockets - unless you really know what you're doing (in which case this HOWTO isn't for you!), you'll get better behavior and performance from a STREAM socket than anything else. I will try to clear up the mystery of what a socket is, as well as some hints on how to work with blocking and non-blocking sockets. But I'll start by talking about blocking sockets. You'll need to know how they work before dealing with non-blocking sockets. Part of the trouble with understanding these things is that "socket" can mean a number of subtly different things, depending on context. So first, let's make a distinction between a "client" socket - an endpoint of a conversation, and a "server" socket, which is more like a switchboard operator. The client application (your browser, for example) uses "client" sockets exclusively; the web server it's talking to uses both "server" sockets and "client" sockets. History ------- Of the various forms of :abbr:`IPC (Inter Process Communication)`, sockets are by far the most popular. On any given platform, there are likely to be other forms of IPC that are faster, but for cross-platform communication, sockets are about the only game in town. They were invented in Berkeley as part of the BSD flavor of Unix. They spread like wildfire with the Internet. With good reason --- the combination of sockets with INET makes talking to arbitrary machines around the world unbelievably easy (at least compared to other schemes). Creating a Socket ================= Roughly speaking, when you clicked on the link that brought you to this page, your browser did something like the following:: # create an INET, STREAMing socket s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # now connect to the web server on port 80 - the normal http port s.connect(("www.python.org", 80)) When the ``connect`` completes, the socket ``s`` can be used to send in a request for the text of the page. The same socket will read the reply, and then be destroyed. That's right, destroyed. Client sockets are normally only used for one exchange (or a small set of sequential exchanges). What happens in the web server is a bit more complex. First, the web server creates a "server socket":: # create an INET, STREAMing socket serversocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # bind the socket to a public host, and a well-known port serversocket.bind((socket.gethostname(), 80)) # become a server socket serversocket.listen(5) A couple things to notice: we used ``socket.gethostname()`` so that the socket would be visible to the outside world. If we had used ``s.bind(('localhost', 80))`` or ``s.bind(('127.0.0.1', 80))`` we would still have a "server" socket, but one that was only visible within the same machine. ``s.bind(('', 80))`` specifies that the socket is reachable by any address the machine happens to have. A second thing to note: low number ports are usually reserved for "well known" services (HTTP, SNMP etc). If you're playing around, use a nice high number (4 digits). Finally, the argument to ``listen`` tells the socket library that we want it to queue up as many as 5 connect requests (the normal max) before refusing outside connections. If the rest of the code is written properly, that should be plenty. Now that we have a "server" socket, listening on port 80, we can enter the mainloop of the web server:: while True: # accept connections from outside (clientsocket, address) = serversocket.accept() # now do something with the clientsocket # in this case, we'll pretend this is a threaded server ct = client_thread(clientsocket) ct.run() There's actually 3 general ways in which this loop could work - dispatching a thread to handle ``clientsocket``, create a new process to handle ``clientsocket``, or restructure this app to use non-blocking sockets, and multiplex between our "server" socket and any active ``clientsocket``\ s using ``select``. More about that later. The important thing to understand now is this: this is *all* a "server" socket does. It doesn't send any data. It doesn't receive any data. It just produces "client" sockets. Each ``clientsocket`` is created in response to some *other* "client" socket doing a ``connect()`` to the host and port we're bound to. As soon as we've created that ``clientsocket``, we go back to listening for more connections. The two "clients" are free to chat it up - they are using some dynamically allocated port which will be recycled when the conversation ends. IPC --- If you need fast IPC between two processes on one machine, you should look into pipes or shared memory. If you do decide to use AF_INET sockets, bind the "server" socket to ``'localhost'``. On most platforms, this will take a shortcut around a couple of layers of network code and be quite a bit faster. .. seealso:: The :mod:`multiprocessing` integrates cross-platform IPC into a higher-level API. Using a Socket ============== The first thing to note, is that the web browser's "client" socket and the web server's "client" socket are identical beasts. That is, this is a "peer to peer" conversation. Or to put it another way, *as the designer, you will have to decide what the rules of etiquette are for a conversation*. Normally, the ``connect``\ ing socket starts the conversation, by sending in a request, or perhaps a signon. But that's a design decision - it's not a rule of sockets. Now there are two sets of verbs to use for communication. You can use ``send`` and ``recv``, or you can transform your client socket into a file-like beast and use ``read`` and ``write``. The latter is the way Java presents its sockets. I'm not going to talk about it here, except to warn you that you need to use ``flush`` on sockets. These are buffered "files", and a common mistake is to ``write`` something, and then ``read`` for a reply. Without a ``flush`` in there, you may wait forever for the reply, because the request may still be in your output buffer. Now we come to the major stumbling block of sockets - ``send`` and ``recv`` operate on the network buffers. They do not necessarily handle all the bytes you hand them (or expect from them), because their major focus is handling the network buffers. In general, they return when the associated network buffers have been filled (``send``) or emptied (``recv``). They then tell you how many bytes they handled. It is *your* responsibility to call them again until your message has been completely dealt with. When a ``recv`` returns 0 bytes, it means the other side has closed (or is in the process of closing) the connection. You will not receive any more data on this connection. Ever. You may be able to send data successfully; I'll talk more about this later. A protocol like HTTP uses a socket for only one transfer. The client sends a request, then reads a reply. That's it. The socket is discarded. This means that a client can detect the end of the reply by receiving 0 bytes. But if you plan to reuse your socket for further transfers, you need to realize that *there is no* :abbr:`EOT (End of Transfer)` *on a socket.* I repeat: if a socket ``send`` or ``recv`` returns after handling 0 bytes, the connection has been broken. If the connection has *not* been broken, you may wait on a ``recv`` forever, because the socket will *not* tell you that there's nothing more to read (for now). Now if you think about that a bit, you'll come to realize a fundamental truth of sockets: *messages must either be fixed length* (yuck), *or be delimited* (shrug), *or indicate how long they are* (much better), *or end by shutting down the connection*. The choice is entirely yours, (but some ways are righter than others). Assuming you don't want to end the connection, the simplest solution is a fixed length message:: class MySocket: """demonstration class only - coded for clarity, not efficiency """ def __init__(self, sock=None): if sock is None: self.sock = socket.socket( socket.AF_INET, socket.SOCK_STREAM) else: self.sock = sock def connect(self, host, port): self.sock.connect((host, port)) def mysend(self, msg): totalsent = 0 while totalsent < MSGLEN: sent = self.sock.send(msg[totalsent:]) if sent == 0: raise RuntimeError("socket connection broken") totalsent = totalsent + sent def myreceive(self): chunks = [] bytes_recd = 0 while bytes_recd < MSGLEN: chunk = self.sock.recv(min(MSGLEN - bytes_recd, 2048)) if chunk == b'': raise RuntimeError("socket connection broken") chunks.append(chunk) bytes_recd = bytes_recd + len(chunk) return b''.join(chunks) The sending code here is usable for almost any messaging scheme - in Python you send strings, and you can use ``len()`` to determine its length (even if it has embedded ``\0`` characters). It's mostly the receiving code that gets more complex. (And in C, it's not much worse, except you can't use ``strlen`` if the message has embedded ``\0``\ s.) The easiest enhancement is to make the first character of the message an indicator of message type, and have the type determine the length. Now you have two ``recv``\ s - the first to get (at least) that first character so you can look up the length, and the second in a loop to get the rest. If you decide to go the delimited route, you'll be receiving in some arbitrary chunk size, (4096 or 8192 is frequently a good match for network buffer sizes), and scanning what you've received for a delimiter. One complication to be aware of: if your conversational protocol allows multiple messages to be sent back to back (without some kind of reply), and you pass ``recv`` an arbitrary chunk size, you may end up reading the start of a following message. You'll need to put that aside and hold onto it, until it's needed. Prefixing the message with its length (say, as 5 numeric characters) gets more complex, because (believe it or not), you may not get all 5 characters in one ``recv``. In playing around, you'll get away with it; but in high network loads, your code will very quickly break unless you use two ``recv`` loops - the first to determine the length, the second to get the data part of the message. Nasty. This is also when you'll discover that ``send`` does not always manage to get rid of everything in one pass. And despite having read this, you will eventually get bit by it! In the interests of space, building your character, (and preserving my competitive position), these enhancements are left as an exercise for the reader. Lets move on to cleaning up. Binary Data ----------- It is perfectly possible to send binary data over a socket. The major problem is that not all machines use the same formats for binary data. For example, a Motorola chip will represent a 16 bit integer with the value 1 as the two hex bytes 00 01. Intel and DEC, however, are byte-reversed - that same 1 is 01 00. Socket libraries have calls for converting 16 and 32 bit integers - ``ntohl, htonl, ntohs, htons`` where "n" means *network* and "h" means *host*, "s" means *short* and "l" means *long*. Where network order is host order, these do nothing, but where the machine is byte-reversed, these swap the bytes around appropriately. In these days of 32 bit machines, the ascii representation of binary data is frequently smaller than the binary representation. That's because a surprising amount of the time, all those longs have the value 0, or maybe 1. The string "0" would be two bytes, while binary is four. Of course, this doesn't fit well with fixed-length messages. Decisions, decisions. Disconnecting ============= Strictly speaking, you're supposed to use ``shutdown`` on a socket before you ``close`` it. The ``shutdown`` is an advisory to the socket at the other end. Depending on the argument you pass it, it can mean "I'm not going to send anymore, but I'll still listen", or "I'm not listening, good riddance!". Most socket libraries, however, are so used to programmers neglecting to use this piece of etiquette that normally a ``close`` is the same as ``shutdown(); close()``. So in most situations, an explicit ``shutdown`` is not needed. One way to use ``shutdown`` effectively is in an HTTP-like exchange. The client sends a request and then does a ``shutdown(1)``. This tells the server "This client is done sending, but can still receive." The server can detect "EOF" by a receive of 0 bytes. It can assume it has the complete request. The server sends a reply. If the ``send`` completes successfully then, indeed, the client was still receiving. Python takes the automatic shutdown a step further, and says that when a socket is garbage collected, it will automatically do a ``close`` if it's needed. But relying on this is a very bad habit. If your socket just disappears without doing a ``close``, the socket at the other end may hang indefinitely, thinking you're just being slow. *Please* ``close`` your sockets when you're done. When Sockets Die ---------------- Probably the worst thing about using blocking sockets is what happens when the other side comes down hard (without doing a ``close``). Your socket is likely to hang. TCP is a reliable protocol, and it will wait a long, long time before giving up on a connection. If you're using threads, the entire thread is essentially dead. There's not much you can do about it. As long as you aren't doing something dumb, like holding a lock while doing a blocking read, the thread isn't really consuming much in the way of resources. Do *not* try to kill the thread - part of the reason that threads are more efficient than processes is that they avoid the overhead associated with the automatic recycling of resources. In other words, if you do manage to kill the thread, your whole process is likely to be screwed up. Non-blocking Sockets ==================== If you've understood the preceding, you already know most of what you need to know about the mechanics of using sockets. You'll still use the same calls, in much the same ways. It's just that, if you do it right, your app will be almost inside-out. In Python, you use ``socket.setblocking(False)`` to make it non-blocking. In C, it's more complex, (for one thing, you'll need to choose between the BSD flavor ``O_NONBLOCK`` and the almost indistinguishable POSIX flavor ``O_NDELAY``, which is completely different from ``TCP_NODELAY``), but it's the exact same idea. You do this after creating the socket, but before using it. (Actually, if you're nuts, you can switch back and forth.) The major mechanical difference is that ``send``, ``recv``, ``connect`` and ``accept`` can return without having done anything. You have (of course) a number of choices. You can check return code and error codes and generally drive yourself crazy. If you don't believe me, try it sometime. Your app will grow large, buggy and suck CPU. So let's skip the brain-dead solutions and do it right. Use ``select``. In C, coding ``select`` is fairly complex. In Python, it's a piece of cake, but it's close enough to the C version that if you understand ``select`` in Python, you'll have little trouble with it in C:: ready_to_read, ready_to_write, in_error = \ select.select( potential_readers, potential_writers, potential_errs, timeout) You pass ``select`` three lists: the first contains all sockets that you might want to try reading; the second all the sockets you might want to try writing to, and the last (normally left empty) those that you want to check for errors. You should note that a socket can go into more than one list. The ``select`` call is blocking, but you can give it a timeout. This is generally a sensible thing to do - give it a nice long timeout (say a minute) unless you have good reason to do otherwise. In return, you will get three lists. They contain the sockets that are actually readable, writable and in error. Each of these lists is a subset (possibly empty) of the corresponding list you passed in. If a socket is in the output readable list, you can be as-close-to-certain-as-we-ever-get-in-this-business that a ``recv`` on that socket will return *something*. Same idea for the writable list. You'll be able to send *something*. Maybe not all you want to, but *something* is better than nothing. (Actually, any reasonably healthy socket will return as writable - it just means outbound network buffer space is available.) If you have a "server" socket, put it in the potential_readers list. If it comes out in the readable list, your ``accept`` will (almost certainly) work. If you have created a new socket to ``connect`` to someone else, put it in the potential_writers list. If it shows up in the writable list, you have a decent chance that it has connected. Actually, ``select`` can be handy even with blocking sockets. It's one way of determining whether you will block - the socket returns as readable when there's something in the buffers. However, this still doesn't help with the problem of determining whether the other end is done, or just busy with something else. **Portability alert**: On Unix, ``select`` works both with the sockets and files. Don't try this on Windows. On Windows, ``select`` works with sockets only. Also note that in C, many of the more advanced socket options are done differently on Windows. In fact, on Windows I usually use threads (which work very, very well) with my sockets. 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200
# Top-level Makefile for Python
#
# As distributed, this file is called Makefile.pre.in; it is processed
# into the real Makefile by running the script ./configure, which
# replaces things like @spam@ with values appropriate for your system.
# This means that if you edit Makefile, your changes get lost the next
# time you run the configure script.  Ideally, you can do:
#
#	./configure
#	make
#	make test
#	make install
#
# If you have a previous version of Python installed that you don't
# want to overwrite, you can use "make altinstall" instead of "make
# install".  Refer to the "Installing" section in the README file for
# additional details.
#
# See also the section "Build instructions" in the README file.

# === Variables set by makesetup ===

MODOBJS=        _MODOBJS_
MODLIBS=        _MODLIBS_

# === Variables set by configure
VERSION=	@VERSION@
srcdir=		@srcdir@
VPATH=		@srcdir@

CC=		@CC@
CXX=		@CXX@
MAINCC=		@MAINCC@
LINKCC=		@LINKCC@
AR=		@AR@
RANLIB=		@RANLIB@
SVNVERSION=	@SVNVERSION@

# Shell used by make (some versions default to the login shell, which is bad)
SHELL=		/bin/sh

# Use this to make a link between python$(VERSION) and python in $(BINDIR)
LN=		@LN@

# Portable install script (configure doesn't always guess right)
INSTALL=	@INSTALL@
INSTALL_PROGRAM=@INSTALL_PROGRAM@
INSTALL_SCRIPT= @INSTALL_SCRIPT@
INSTALL_DATA=	@INSTALL_DATA@
# Shared libraries must be installed with executable mode on some systems;
# rather than figuring out exactly which, we always give them executable mode.
# Also, making them read-only seems to be a good idea...
INSTALL_SHARED= ${INSTALL} -m 555

MAKESETUP=      $(srcdir)/Modules/makesetup

# Compiler options
OPT=		@OPT@
BASECFLAGS=	@BASECFLAGS@
CFLAGS=		$(BASECFLAGS) $(OPT) $(EXTRA_CFLAGS)
# Both CPPFLAGS and LDFLAGS need to contain the shell's value for setup.py to
# be able to build extension modules using the directories specified in the
# environment variables
CPPFLAGS=	-I. -IInclude -I$(srcdir)/Include @CPPFLAGS@
LDFLAGS=	@LDFLAGS@
LDLAST=		@LDLAST@
SGI_ABI=	@SGI_ABI@
CCSHARED=	@CCSHARED@
LINKFORSHARED=	@LINKFORSHARED@
# Extra C flags added for building the interpreter object files.
CFLAGSFORSHARED=@CFLAGSFORSHARED@
# C flags used for building the interpreter object files
PY_CFLAGS=	$(CFLAGS) $(CPPFLAGS) $(CFLAGSFORSHARED) -DPy_BUILD_CORE


# Machine-dependent subdirectories
MACHDEP=	@MACHDEP@

# Install prefix for architecture-independent files
prefix=		@prefix@

# Install prefix for architecture-dependent files
exec_prefix=	@exec_prefix@

# Install prefix for data files
datarootdir=    @datarootdir@

# Expanded directories
BINDIR=		$(exec_prefix)/bin
LIBDIR=		$(exec_prefix)/lib
MANDIR=		@mandir@
INCLUDEDIR=	@includedir@
CONFINCLUDEDIR=	$(exec_prefix)/include
SCRIPTDIR=	$(prefix)/lib

# Detailed destination directories
BINLIBDEST=	$(LIBDIR)/python$(VERSION)
LIBDEST=	$(SCRIPTDIR)/python$(VERSION)
INCLUDEPY=	$(INCLUDEDIR)/python$(VERSION)
CONFINCLUDEPY=	$(CONFINCLUDEDIR)/python$(VERSION)
LIBP=		$(LIBDIR)/python$(VERSION)

# Symbols used for using shared libraries
SO=		@SO@
LDSHARED=	@LDSHARED@
BLDSHARED=	@BLDSHARED@
DESTSHARED=	$(BINLIBDEST)/lib-dynload

# Executable suffix (.exe on Windows and Mac OS X)
EXE=		@EXEEXT@
BUILDEXE=	@BUILDEXEEXT@

# Short name and location for Mac OS X Python framework
UNIVERSALSDK=@UNIVERSALSDK@
PYTHONFRAMEWORK=	@PYTHONFRAMEWORK@
PYTHONFRAMEWORKDIR=	@PYTHONFRAMEWORKDIR@
PYTHONFRAMEWORKPREFIX=	@PYTHONFRAMEWORKPREFIX@
PYTHONFRAMEWORKINSTALLDIR= @PYTHONFRAMEWORKINSTALLDIR@
# Deployment target selected during configure, to be checked
# by distutils. The export statement is needed to ensure that the
# deployment target is active during build.
MACOSX_DEPLOYMENT_TARGET=@CONFIGURE_MACOSX_DEPLOYMENT_TARGET@
@EXPORT_MACOSX_DEPLOYMENT_TARGET@export MACOSX_DEPLOYMENT_TARGET

# Options to enable prebinding (for fast startup prior to Mac OS X 10.3)
OTHER_LIBTOOL_OPT=@OTHER_LIBTOOL_OPT@

# Environment to run shared python without installed libraries
RUNSHARED=       @RUNSHARED@

# Modes for directories, executables and data files created by the
# install process.  Default to user-only-writable for all file types.
DIRMODE=	755
EXEMODE=	755
FILEMODE=	644

# configure script arguments
CONFIG_ARGS=	@CONFIG_ARGS@


# Subdirectories with code
SRCDIRS= 	@SRCDIRS@

# Other subdirectories
SUBDIRSTOO=	Include Lib Misc Demo

# Files and directories to be distributed
CONFIGFILES=	configure configure.in acconfig.h pyconfig.h.in Makefile.pre.in
DISTFILES=	README ChangeLog $(CONFIGFILES)
DISTDIRS=	$(SUBDIRS) $(SUBDIRSTOO) Ext-dummy
DIST=		$(DISTFILES) $(DISTDIRS)


LIBRARY=	@LIBRARY@
LDLIBRARY=      @LDLIBRARY@
BLDLIBRARY=     @BLDLIBRARY@
DLLLIBRARY=	@DLLLIBRARY@
LDLIBRARYDIR=   @LDLIBRARYDIR@
INSTSONAME=	@INSTSONAME@


LIBS=		@LIBS@
LIBM=		@LIBM@
LIBC=		@LIBC@
SYSLIBS=	$(LIBM) $(LIBC)
SHLIBS=		@SHLIBS@

THREADOBJ=	@THREADOBJ@
DLINCLDIR=	@DLINCLDIR@
DYNLOADFILE=	@DYNLOADFILE@
MACHDEP_OBJS=	@MACHDEP_OBJS@
LIBOBJDIR=	Python/
LIBOBJS=	@LIBOBJS@

PYTHON=		python$(EXE)
BUILDPYTHON=	python$(BUILDEXE)

# The task to run while instrument when building the profile-opt target
PROFILE_TASK=	Tools/pybench/pybench.py -n 2 --with-gc --with-syscheck
#PROFILE_TASK=	Lib/test/regrtest.py

# === Definitions added by makesetup ===


##########################################################################
# Modules
MODULE_OBJS=	\
		Modules/config.o \
		Modules/getpath.o \
		Modules/main.o \
		Modules/gcmodule.o

# Used of signalmodule.o is not available
SIGNAL_OBJS=	@SIGNAL_OBJS@


##########################################################################
# Grammar
GRAMMAR_H=	$(srcdir)/Include/graminit.h
GRAMMAR_C=	$(srcdir)/Python/graminit.c
GRAMMAR_INPUT=	$(srcdir)/Grammar/Grammar


##########################################################################
# Parser
PGEN=		Parser/pgen$(EXE)

POBJS=		\
		Parser/acceler.o \
		Parser/grammar1.o \
		Parser/listnode.o \
		Parser/node.o \
		Parser/parser.o \
		Parser/parsetok.o \
		Parser/bitset.o \
		Parser/metagrammar.o \
		Parser/firstsets.o \
		Parser/grammar.o \
		Parser/pgen.o

PARSER_OBJS=	$(POBJS) Parser/myreadline.o Parser/tokenizer.o

PGOBJS=		\
		Objects/obmalloc.o \
		Python/mysnprintf.o \
		Parser/tokenizer_pgen.o \
		Parser/printgrammar.o \
		Parser/pgenmain.o

PARSER_HEADERS= \
		Parser/parser.h \
		Parser/tokenizer.h

PGENOBJS=	$(PGENMAIN) $(POBJS) $(PGOBJS)

##########################################################################
# AST
AST_H_DIR=	$(srcdir)/Include
AST_H=		$(AST_H_DIR)/Python-ast.h
AST_C_DIR=	$(srcdir)/Python
AST_C=		$(AST_C_DIR)/Python-ast.c
AST_ASDL=	$(srcdir)/Parser/Python.asdl

ASDLGEN_FILES=	$(srcdir)/Parser/asdl.py $(srcdir)/Parser/asdl_c.py
# XXX Note that a build now requires Python exist before the build starts
ASDLGEN=	$(srcdir)/Parser/asdl_c.py

##########################################################################
# Python
PYTHON_OBJS=	\
		Python/_warnings.o \
		Python/Python-ast.o \
		Python/asdl.o \
		Python/ast.o \
		Python/bltinmodule.o \
		Python/ceval.o \
		Python/compile.o \
		Python/codecs.o \
		Python/errors.o \
		Python/frozen.o \
		Python/frozenmain.o \
		Python/future.o \
		Python/getargs.o \
		Python/getcompiler.o \
		Python/getcopyright.o \
		Python/getmtime.o \
		Python/getplatform.o \
		Python/getversion.o \
		Python/graminit.o \
		Python/import.o \
		Python/importdl.o \
		Python/marshal.o \
		Python/modsupport.o \
		Python/mystrtoul.o \
		Python/mysnprintf.o \
		Python/peephole.o \
		Python/pyarena.o \
		Python/pyfpe.o \
		Python/pymath.o \
		Python/pystate.o \
		Python/pythonrun.o \
		Python/structmember.o \
		Python/symtable.o \
		Python/sysmodule.o \
		Python/traceback.o \
		Python/getopt.o \
		Python/pystrcmp.o \
		Python/pystrtod.o \
		Python/formatter_unicode.o \
		Python/$(DYNLOADFILE) \
		$(LIBOBJS) \
		$(MACHDEP_OBJS) \
		$(THREADOBJ)


##########################################################################
# Objects
OBJECT_OBJS=	\
		Objects/abstract.o \
		Objects/boolobject.o \
		Objects/bytes_methods.o \
		Objects/bytearrayobject.o \
		Objects/bytesobject.o \
		Objects/cellobject.o \
		Objects/classobject.o \
		Objects/cobject.o \
		Objects/codeobject.o \
		Objects/complexobject.o \
		Objects/descrobject.o \
		Objects/enumobject.o \
		Objects/exceptions.o \
		Objects/genobject.o \
		Objects/fileobject.o \
		Objects/floatobject.o \
		Objects/frameobject.o \
		Objects/funcobject.o \
		Objects/iterobject.o \
		Objects/listobject.o \
		Objects/longobject.o \
		Objects/dictobject.o \
		Objects/memoryobject.o \
		Objects/methodobject.o \
		Objects/moduleobject.o \
		Objects/object.o \
		Objects/obmalloc.o \
		Objects/rangeobject.o \
                Objects/setobject.o \
		Objects/sliceobject.o \
		Objects/structseq.o \
		Objects/tupleobject.o \
		Objects/typeobject.o \
		Objects/unicodeobject.o \
		Objects/unicodectype.o \
		Objects/weakrefobject.o


##########################################################################
# objects that get linked into the Python library
LIBRARY_OBJS=	\
		Modules/getbuildinfo.o \
		$(PARSER_OBJS) \
		$(OBJECT_OBJS) \
		$(PYTHON_OBJS) \
		$(MODULE_OBJS) \
		$(SIGNAL_OBJS) \
		$(MODOBJS)

#########################################################################
# Rules

# Default target
all:		build_all
build_all:	$(BUILDPYTHON) oldsharedmods sharedmods

# Compile a binary with gcc profile guided optimization.
profile-opt:
	@echo "Building with support for profile generation:"
	$(MAKE) clean
	$(MAKE) build_all_generate_profile
	@echo "Running benchmark to generate profile data:"
	$(MAKE) profile-removal
	$(MAKE) run_profile_task
	@echo "Rebuilding with profile guided optimizations:"
	$(MAKE) clean
	$(MAKE) build_all_use_profile

build_all_generate_profile:
	$(MAKE) all CFLAGS="$(CFLAGS) -fprofile-generate" LIBS="$(LIBS) -lgcov"

run_profile_task:
	./$(BUILDPYTHON) $(PROFILE_TASK)

build_all_use_profile:
	$(MAKE) all CFLAGS="$(CFLAGS) -fprofile-use"

coverage:
	@echo "Building with support for coverage checking:"
	$(MAKE) clean
	$(MAKE) all CFLAGS="$(CFLAGS) -O0 -pg -fprofile-arcs -ftest-coverage" LIBS="$(LIBS) -lgcov"


# Build the interpreter
$(BUILDPYTHON):	Modules/python.o $(LIBRARY) $(LDLIBRARY)
		$(LINKCC) $(LDFLAGS) $(LINKFORSHARED) -o $@ \
			Modules/python.o \
			$(BLDLIBRARY) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)

platform: $(BUILDPYTHON)
	$(RUNSHARED) ./$(BUILDPYTHON) -E -c 'import sys ; from distutils.util import get_platform ; print(get_platform()+"-"+sys.version[0:3])' >platform


# Build the shared modules
sharedmods: $(BUILDPYTHON)
	@case $$MAKEFLAGS in \
	*s*) $(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' ./$(BUILDPYTHON) -E $(srcdir)/setup.py -q build;; \
	*) $(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' ./$(BUILDPYTHON) -E $(srcdir)/setup.py build;; \
	esac

# Build static library
# avoid long command lines, same as LIBRARY_OBJS
$(LIBRARY): $(LIBRARY_OBJS)
	-rm -f $@
	$(AR) cr $@ Modules/getbuildinfo.o
	$(AR) cr $@ $(PARSER_OBJS)
	$(AR) cr $@ $(OBJECT_OBJS)
	$(AR) cr $@ $(PYTHON_OBJS)
	$(AR) cr $@ $(MODULE_OBJS) $(SIGNAL_OBJS)
	$(AR) cr $@ $(MODOBJS)
	$(RANLIB) $@

libpython$(VERSION).so: $(LIBRARY_OBJS)
	if test $(INSTSONAME) != $(LDLIBRARY); then \
		$(LDSHARED) -Wl,-h$(INSTSONAME) -o $(INSTSONAME) $(LIBRARY_OBJS) $(SHLIBS) $(LIBC) $(LIBM); \
		$(LN) -f $(INSTSONAME) $@; \
	else\
		$(LDSHARED) -o $@ $(LIBRARY_OBJS) $(SHLIBS) $(LIBC) $(LIBM); \
	fi

libpython$(VERSION).sl: $(LIBRARY_OBJS)
	$(LDSHARED) -o $@ $(LIBRARY_OBJS) $(SHLIBS) $(LIBC) $(LIBM)

# This rule is here for OPENSTEP/Rhapsody/MacOSX. It builds a temporary
# minimal framework (not including the Lib directory and such) in the current
# directory.
RESSRCDIR=Mac/Resources/framework
$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK): \
		$(LIBRARY) \
		$(RESSRCDIR)/Info.plist
	$(INSTALL) -d -m $(DIRMODE) $(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)
	if test "${UNIVERSALSDK}"; then \
		$(CC) -o $(LDLIBRARY) -arch i386 -arch ppc -dynamiclib \
			-isysroot "${UNIVERSALSDK}" \
			-all_load $(LIBRARY) -Wl,-single_module \
			-install_name $(DESTDIR)$(PYTHONFRAMEWORKINSTALLDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK) \
			-compatibility_version $(VERSION) \
			-current_version $(VERSION); \
        else \
		/usr/bin/libtool -o $(LDLIBRARY) -dynamic $(OTHER_LIBTOOL_OPT) $(LIBRARY) \
			@LIBTOOL_CRUFT@ ;\
	fi
	$(INSTALL) -d -m $(DIRMODE)  \
		$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/Resources/English.lproj
	$(INSTALL_DATA) $(RESSRCDIR)/Info.plist \
		$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/Resources/Info.plist
	$(LN) -fsn $(VERSION) $(PYTHONFRAMEWORKDIR)/Versions/Current
	$(LN) -fsn Versions/Current/$(PYTHONFRAMEWORK) $(PYTHONFRAMEWORKDIR)/$(PYTHONFRAMEWORK)
	$(LN) -fsn Versions/Current/Headers $(PYTHONFRAMEWORKDIR)/Headers
	$(LN) -fsn Versions/Current/Resources $(PYTHONFRAMEWORKDIR)/Resources

# This rule builds the Cygwin Python DLL and import library if configured
# for a shared core library; otherwise, this rule is a noop.
$(DLLLIBRARY) libpython$(VERSION).dll.a: $(LIBRARY_OBJS)
	if test -n "$(DLLLIBRARY)"; then \
		$(LDSHARED) -Wl,--out-implib=$@ -o $(DLLLIBRARY) $^ \
			$(LIBS) $(MODLIBS) $(SYSLIBS); \
	else true; \
	fi


oldsharedmods: $(SHAREDMODS)


Makefile Modules/config.c: Makefile.pre \
				$(srcdir)/Modules/config.c.in \
				$(MAKESETUP) \
				Modules/Setup.config \
				Modules/Setup \
				Modules/Setup.local
	$(SHELL) $(MAKESETUP) -c $(srcdir)/Modules/config.c.in \
				-s Modules \
				Modules/Setup.config \
				Modules/Setup.local \
				Modules/Setup
	@mv config.c Modules
	@echo "The Makefile was updated, you may need to re-run make."


Modules/Setup: $(srcdir)/Modules/Setup.dist
	@if test -f Modules/Setup; then \
		echo "-----------------------------------------------"; \
		echo "Modules/Setup.dist is newer than Modules/Setup;"; \
		echo "check to make sure you have all the updates you"; \
		echo "need in your Modules/Setup file."; \
		echo "Usually, copying Modules/Setup.dist to Modules/Setup will work."; \
		echo "-----------------------------------------------"; \
	fi

############################################################################
# Special rules for object files

Modules/getbuildinfo.o: $(PARSER_OBJS) \
		$(OBJECT_OBJS) \
		$(PYTHON_OBJS) \
		$(MODULE_OBJS) \
		$(SIGNAL_OBJS) \
		$(MODOBJS) \
		$(srcdir)/Modules/getbuildinfo.c
	$(CC) -c $(PY_CFLAGS) -DSVNVERSION=\"`LC_ALL=C $(SVNVERSION)`\" -o $@ $(srcdir)/Modules/getbuildinfo.c

Modules/getpath.o: $(srcdir)/Modules/getpath.c Makefile
	$(CC) -c $(PY_CFLAGS) -DPYTHONPATH='"$(PYTHONPATH)"' \
		-DPREFIX='"$(prefix)"' \
		-DEXEC_PREFIX='"$(exec_prefix)"' \
		-DVERSION='"$(VERSION)"' \
		-DVPATH='"$(VPATH)"' \
		-o $@ $(srcdir)/Modules/getpath.c

Modules/python.o: $(srcdir)/Modules/python.c
	$(MAINCC) -c $(PY_CFLAGS) -o $@ $(srcdir)/Modules/python.c


$(GRAMMAR_H) $(GRAMMAR_C): $(PGEN) $(GRAMMAR_INPUT)
		-@$(INSTALL) -d Include
		-$(PGEN) $(GRAMMAR_INPUT) $(GRAMMAR_H) $(GRAMMAR_C)

$(PGEN):	$(PGENOBJS)
		$(CC) $(OPT) $(LDFLAGS) $(PGENOBJS) $(LIBS) -o $(PGEN)

Parser/grammar.o:	$(srcdir)/Parser/grammar.c \
				$(srcdir)/Include/token.h \
				$(srcdir)/Include/grammar.h
Parser/metagrammar.o:	$(srcdir)/Parser/metagrammar.c

Parser/tokenizer_pgen.o:	$(srcdir)/Parser/tokenizer.c

Parser/pgenmain.o:	$(srcdir)/Include/parsetok.h

$(AST_H): $(AST_ASDL) $(ASDLGEN_FILES)
	$(ASDLGEN) -h $(AST_H_DIR) $(AST_ASDL)

$(AST_C): $(AST_ASDL) $(ASDLGEN_FILES)
	$(ASDLGEN) -c $(AST_C_DIR) $(AST_ASDL)

Python/compile.o Python/symtable.o: $(GRAMMAR_H) $(AST_H)

Python/getplatform.o: $(srcdir)/Python/getplatform.c
		$(CC) -c $(PY_CFLAGS) -DPLATFORM='"$(MACHDEP)"' -o $@ $(srcdir)/Python/getplatform.c

Python/importdl.o: $(srcdir)/Python/importdl.c
		$(CC) -c $(PY_CFLAGS) -I$(DLINCLDIR) -o $@ $(srcdir)/Python/importdl.c

Objects/unicodectype.o:	$(srcdir)/Objects/unicodectype.c \
				$(srcdir)/Objects/unicodetype_db.h

BYTESTR_DEPS = \
		$(srcdir)/Include/bytes_methods.h \
		$(srcdir)/Objects/stringlib/count.h \
		$(srcdir)/Objects/stringlib/ctype.h \
		$(srcdir)/Objects/stringlib/eq.h \
		$(srcdir)/Objects/stringlib/fastsearch.h \
		$(srcdir)/Objects/stringlib/find.h \
		$(srcdir)/Objects/stringlib/partition.h \
		$(srcdir)/Objects/stringlib/stringdefs.h \
		$(srcdir)/Objects/stringlib/string_format.h \
		$(srcdir)/Objects/stringlib/transmogrify.h \
		$(srcdir)/Objects/stringlib/unicodedefs.h \
		$(srcdir)/Objects/stringlib/localeutil.h

Objects/stringobject.o: $(srcdir)/Objects/stringobject.c $(BYTESTR_DEPS)

Objects/bytesobject.o: $(srcdir)/Objects/bytesobject.c $(BYTESTR_DEPS) 

Objects/unicodeobject.o: $(srcdir)/Objects/unicodeobject.c \
                                             $(BYTESTR_DEPS)

Python/formatter_unicode.o: $(srcdir)/Python/formatter_unicode.c \
                                             $(BYTESTR_DEPS)


############################################################################
# Header files

PYTHON_HEADERS= \
		Include/Python-ast.h \
		Include/Python.h \
		Include/abstract.h \
		Include/asdl.h \
		Include/ast.h \
		Include/bitset.h \
		Include/boolobject.h \
		Include/bytes_methods.h \
		Include/bytearrayobject.h \
		Include/bytesobject.h \
		Include/cellobject.h \
		Include/ceval.h \
		Include/classobject.h \
		Include/cobject.h \
		Include/code.h \
		Include/codecs.h \
		Include/compile.h \
		Include/complexobject.h \
		Include/descrobject.h \
		Include/dictobject.h \
		Include/enumobject.h \
		Include/errcode.h \
		Include/eval.h \
		Include/fileobject.h \
		Include/floatobject.h \
		Include/frameobject.h \
		Include/funcobject.h \
		Include/genobject.h \
		Include/import.h \
		Include/intrcheck.h \
		Include/iterobject.h \
		Include/listobject.h \
		Include/longintrepr.h \
		Include/longobject.h \
		Include/marshal.h \
		Include/memoryobject.h \
		Include/metagrammar.h \
		Include/methodobject.h \
		Include/modsupport.h \
		Include/moduleobject.h \
		Include/node.h \
		Include/object.h \
		Include/objimpl.h \
		Include/opcode.h \
		Include/osdefs.h \
		Include/parsetok.h \
		Include/patchlevel.h \
		Include/pgen.h \
		Include/pgenheaders.h \
		Include/pyarena.h \
		Include/pydebug.h \
		Include/pyerrors.h \
		Include/pyfpe.h \
		Include/pymath.h \
		Include/pygetopt.h \
		Include/pymem.h \
		Include/pyport.h \
		Include/pystate.h \
		Include/pystrcmp.h \
		Include/pystrtod.h \
		Include/pythonrun.h \
		Include/pythread.h \
		Include/rangeobject.h \
		Include/setobject.h \
		Include/sliceobject.h \
		Include/structmember.h \
		Include/structseq.h \
		Include/symtable.h \
		Include/sysmodule.h \
		Include/traceback.h \
		Include/tupleobject.h \
		Include/ucnhash.h \
		Include/unicodeobject.h \
		Include/warnings.h \
		Include/weakrefobject.h \
		pyconfig.h \
		$(PARSER_HEADERS)

$(LIBRARY_OBJS) $(MODOBJS) Modules/python.o: $(PYTHON_HEADERS)


######################################################################

# Test the interpreter (twice, once without .pyc files, once with)
# In the past, we've had problems where bugs in the marshalling or
# elsewhere caused bytecode read from .pyc files to behave differently
# than bytecode generated directly from a .py source file.  Sometimes
# the bytecode read from a .pyc file had the bug, somtimes the directly
# generated bytecode.  This is sometimes a very shy bug needing a lot of
# sample data.

TESTOPTS=	-l $(EXTRATESTOPTS)
TESTPROG=	$(srcdir)/Lib/test/regrtest.py
TESTPYTHON=	$(RUNSHARED) ./$(BUILDPYTHON) -E -tt -bb
test:		all platform
		-find $(srcdir)/Lib -name '*.py[co]' -print | xargs rm -f
		-$(TESTPYTHON) $(TESTPROG) $(TESTOPTS)
		$(TESTPYTHON) $(TESTPROG) $(TESTOPTS)

testall:	all platform
		-find $(srcdir)/Lib -name '*.py[co]' -print | xargs rm -f
		$(TESTPYTHON) $(srcdir)/Lib/compileall.py
		-find $(srcdir)/Lib -name '*.py[co]' -print | xargs rm -f
		-$(TESTPYTHON) $(TESTPROG) $(TESTOPTS) -uall
		$(TESTPYTHON) $(TESTPROG) $(TESTOPTS) -uall

#  Run the unitests for both architectures in a Universal build on OSX
#  Must be run on an Intel box.
testuniversal:	all platform
		if [ `arch` != 'i386' ];then \
			echo "This can only be used on OSX/i386" ;\
			exit 1 ;\
		fi
		-find $(srcdir)/Lib -name '*.py[co]' -print | xargs rm -f
		-$(TESTPYTHON) $(TESTPROG) $(TESTOPTS) -uall
		$(TESTPYTHON) $(TESTPROG) $(TESTOPTS) -uall
		$(RUNSHARED) /usr/libexec/oah/translate ./$(BUILDPYTHON) -E -tt $(TESTPROG) $(TESTOPTS) -uall


# Like testall, but with a single pass only
# run an optional script to include some information about the build environment
buildbottest:	all platform
		-@if which pybuildbot.identify >/dev/null 2>&1; then \
			pybuildbot.identify "CC='$(CC)'" "CXX='$(CXX)'"; \
		fi
		$(TESTPYTHON) $(TESTPROG) $(TESTOPTS) -uall -rw

QUICKTESTOPTS=	$(TESTOPTS) -x test_thread test_signal test_strftime \
		test_unicodedata test_re test_sre test_select test_poll \
		test_struct test_zlib
quicktest:	all platform
		-find $(srcdir)/Lib -name '*.py[co]' -print | xargs rm -f
		-$(TESTPYTHON) $(TESTPROG) $(QUICKTESTOPTS)
		$(TESTPYTHON) $(TESTPROG) $(QUICKTESTOPTS)

MEMTESTOPTS=    $(QUICKTESTOPTS) -x test_dl test___all__ test_fork1 \
		test_longexp
memtest:	all platform
		-rm -f $(srcdir)/Lib/test/*.py[co]
		-$(TESTPYTHON) $(TESTPROG) $(MEMTESTOPTS)
		$(TESTPYTHON) $(TESTPROG) $(MEMTESTOPTS)

# Install everything
fullinstall:	@FRAMEWORKINSTALLFIRST@ altinstall bininstall maninstall @FRAMEWORKINSTALLLAST@

# "make install" is an alias for "make altinstall" since we never want to
# overwrite Python 2.x.
install:	altinstall
		@echo "* Note: not installed as 'python'."
		@echo "* Use 'make fullinstall' to install as 'python'."
		@echo "* However, 'make fullinstall' is discouraged,"
		@echo "* as it will clobber your Python 2.x installation."

# Install almost everything without disturbing previous versions
altinstall:	@FRAMEWORKALTINSTALLFIRST@ altbininstall libinstall inclinstall libainstall \
                sharedinstall oldsharedinstall @FRAMEWORKALTINSTALLLAST@

# Install shared libraries enabled by Setup
DESTDIRS=	$(exec_prefix) $(LIBDIR) $(BINLIBDEST) $(DESTSHARED)

oldsharedinstall: $(DESTSHARED) $(SHAREDMODS)
		@for i in X $(SHAREDMODS); do \
		  if test $$i != X; then \
		    echo $(INSTALL_SHARED) $$i $(DESTSHARED)/`basename $$i`; \
		    $(INSTALL_SHARED) $$i $(DESTDIR)$(DESTSHARED)/`basename $$i`; \
		  fi; \
		done

$(DESTSHARED):
		@for i in $(DESTDIRS); \
		do \
			if test ! -d $(DESTDIR)$$i; then \
				echo "Creating directory $$i"; \
				$(INSTALL) -d -m $(DIRMODE) $(DESTDIR)$$i; \
			else    true; \
			fi; \
		done


# Install the interpreter (by creating a hard link to python$(VERSION))
bininstall:	altbininstall
	-if test -f $(DESTDIR)$(BINDIR)/$(PYTHON) -o -h $(DESTDIR)$(BINDIR)/$(PYTHON); \
	then rm -f $(DESTDIR)$(BINDIR)/$(PYTHON); \
	else true; \
	fi
	(cd $(DESTDIR)$(BINDIR); $(LN) python$(VERSION)$(EXE) $(PYTHON))
	-rm -f $(DESTDIR)$(BINDIR)/python-config
	(cd $(DESTDIR)$(BINDIR); $(LN) -s python$(VERSION)-config python-config)

# Install the interpreter with $(VERSION) affixed
# This goes into $(exec_prefix)
altbininstall:	$(BUILDPYTHON)
	@for i in $(BINDIR) $(LIBDIR); \
	do \
		if test ! -d $(DESTDIR)$$i; then \
			echo "Creating directory $$i"; \
			$(INSTALL) -d -m $(DIRMODE) $(DESTDIR)$$i; \
		else	true; \
		fi; \
	done
	$(INSTALL_PROGRAM) $(BUILDPYTHON) $(DESTDIR)$(BINDIR)/python$(VERSION)$(EXE)
	if test -f libpython$(VERSION)$(SO); then \
		if test "$(SO)" = .dll; then \
			$(INSTALL_SHARED) libpython$(VERSION)$(SO) $(DESTDIR)$(BINDIR); \
		else \
			$(INSTALL_SHARED) libpython$(VERSION)$(SO) $(DESTDIR)$(LIBDIR)/$(INSTSONAME); \
			if test libpython$(VERSION)$(SO) != $(INSTSONAME); then \
				(cd $(DESTDIR)$(LIBDIR); $(LN) -sf $(INSTSONAME) libpython$(VERSION)$(SO)); \
			fi \
		fi; \
	else	true; \
	fi

# Install the manual page
maninstall:
	@for i in $(MANDIR) $(MANDIR)/man1; \
	do \
		if test ! -d $(DESTDIR)$$i; then \
			echo "Creating directory $$i"; \
			$(INSTALL) -d -m $(DIRMODE) $(DESTDIR)$$i; \
		else	true; \
		fi; \
	done
	$(INSTALL_DATA) $(srcdir)/Misc/python.man \
		$(DESTDIR)$(MANDIR)/man1/python.1

# Install the library
PLATDIR=	plat-$(MACHDEP)
EXTRAPLATDIR= @EXTRAPLATDIR@
EXTRAMACHDEPPATH=@EXTRAMACHDEPPATH@
MACHDEPS=	$(PLATDIR) $(EXTRAPLATDIR)
XMLLIBSUBDIRS=  xml xml/dom xml/etree xml/parsers xml/sax
LIBSUBDIRS=	tkinter site-packages test test/output test/data \
		test/decimaltestdata \
		encodings \
		email email/mime email/test email/test/data \
		html json json/tests http dbm xmlrpc \
		sqlite3 sqlite3/test \
		logging bsddb bsddb/test csv wsgiref \
		lib2to3 lib2to3/fixes lib2to3/pgen2 lib2to3/tests \
		ctypes ctypes/test ctypes/macholib idlelib idlelib/Icons \
		distutils distutils/command distutils/tests $(XMLLIBSUBDIRS) \
		setuptools setuptools/command setuptools/tests setuptools.egg-info \
		curses $(MACHDEPS)
libinstall:	build_all $(srcdir)/Lib/$(PLATDIR)
	@for i in $(SCRIPTDIR) $(LIBDEST); \
	do \
		if test ! -d $(DESTDIR)$$i; then \
			echo "Creating directory $$i"; \
			$(INSTALL) -d -m $(DIRMODE) $(DESTDIR)$$i; \
		else	true; \
		fi; \
	done
	@for d in $(LIBSUBDIRS); \
	do \
		a=$(srcdir)/Lib/$$d; \
		if test ! -d $$a; then continue; else true; fi; \
		b=$(LIBDEST)/$$d; \
		if test ! -d $(DESTDIR)$$b; then \
			echo "Creating directory $$b"; \
			$(INSTALL) -d -m $(DIRMODE) $(DESTDIR)$$b; \
		else	true; \
		fi; \
	done
	@for i in $(srcdir)/Lib/*.py $(srcdir)/Lib/*.doc $(srcdir)/Lib/*.egg-info ; \
	do \
		if test -x $$i; then \
			$(INSTALL_SCRIPT) $$i $(DESTDIR)$(LIBDEST); \
			echo $(INSTALL_SCRIPT) $$i $(LIBDEST); \
		else \
			$(INSTALL_DATA) $$i $(DESTDIR)$(LIBDEST); \
			echo $(INSTALL_DATA) $$i $(LIBDEST); \
		fi; \
	done
	@for d in $(LIBSUBDIRS); \
	do \
		a=$(srcdir)/Lib/$$d; \
		if test ! -d $$a; then continue; else true; fi; \
		if test `ls $$a | wc -l` -lt 1; then continue; fi; \
		b=$(LIBDEST)/$$d; \
		for i in $$a/*; \
		do \
			case $$i in \
			*CVS) ;; \
			*.py[co]) ;; \
			*.orig) ;; \
			*~) ;; \
			*) \
				if test -d $$i; then continue; fi; \
				if test -x $$i; then \
				    echo $(INSTALL_SCRIPT) $$i $$b; \
				    $(INSTALL_SCRIPT) $$i $(DESTDIR)$$b; \
				else \
				    echo $(INSTALL_DATA) $$i $$b; \
				    $(INSTALL_DATA) $$i $(DESTDIR)$$b; \
				fi;; \
			esac; \
		done; \
	done
	$(INSTALL_DATA) $(srcdir)/LICENSE $(DESTDIR)$(LIBDEST)/LICENSE.txt
	-PYTHONPATH=$(DESTDIR)$(LIBDEST)  $(RUNSHARED) \
		./$(BUILDPYTHON) -Wi -tt $(DESTDIR)$(LIBDEST)/compileall.py \
		-d $(LIBDEST) -f \
		-x 'bad_coding|badsyntax|site-packages' $(DESTDIR)$(LIBDEST)
	-PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
		./$(BUILDPYTHON) -Wi -tt -O $(DESTDIR)$(LIBDEST)/compileall.py \
		-d $(LIBDEST) -f \
		-x 'bad_coding|badsyntax|site-packages' $(DESTDIR)$(LIBDEST)
	-PYTHONPATH=$(DESTDIR)$(LIBDEST)  $(RUNSHARED) \
		./$(BUILDPYTHON) -Wi -t $(DESTDIR)$(LIBDEST)/compileall.py \
		-d $(LIBDEST)/site-packages -f \
		-x badsyntax $(DESTDIR)$(LIBDEST)/site-packages
	-PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
		./$(BUILDPYTHON) -Wi -t -O $(DESTDIR)$(LIBDEST)/compileall.py \
		-d $(LIBDEST)/site-packages -f \
		-x badsyntax $(DESTDIR)$(LIBDEST)/site-packages
	-PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
		./$(BUILDPYTHON) -Wi -t -c "import lib2to3.pygram"

# Create the PLATDIR source directory, if one wasn't distributed..
$(srcdir)/Lib/$(PLATDIR):
	mkdir $(srcdir)/Lib/$(PLATDIR)
	cp $(srcdir)/Lib/plat-generic/regen $(srcdir)/Lib/$(PLATDIR)/regen
	export PATH; PATH="`pwd`:$$PATH"; \
	export PYTHONPATH; PYTHONPATH="`pwd`/Lib"; \
	export DYLD_FRAMEWORK_PATH; DYLD_FRAMEWORK_PATH="`pwd`"; \
	export EXE; EXE="$(BUILDEXE)"; \
	cd $(srcdir)/Lib/$(PLATDIR); ./regen

# Install the include files
INCLDIRSTOMAKE=$(INCLUDEDIR) $(CONFINCLUDEDIR) $(INCLUDEPY) $(CONFINCLUDEPY)
inclinstall:
	@for i in $(INCLDIRSTOMAKE); \
	do \
		if test ! -d $(DESTDIR)$$i; then \
			echo "Creating directory $$i"; \
			$(INSTALL) -d -m $(DIRMODE) $(DESTDIR)$$i; \
		else	true; \
		fi; \
	done
	@for i in $(srcdir)/Include/*.h; \
	do \
		echo $(INSTALL_DATA) $$i $(INCLUDEPY); \
		$(INSTALL_DATA) $$i $(DESTDIR)$(INCLUDEPY); \
	done
	$(INSTALL_DATA) pyconfig.h $(DESTDIR)$(CONFINCLUDEPY)/pyconfig.h

# Install the library and miscellaneous stuff needed for extending/embedding
# This goes into $(exec_prefix)
LIBPL=		$(LIBP)/config
libainstall:	all
	@for i in $(LIBDIR) $(LIBP) $(LIBPL); \
	do \
		if test ! -d $(DESTDIR)$$i; then \
			echo "Creating directory $$i"; \
			$(INSTALL) -d -m $(DIRMODE) $(DESTDIR)$$i; \
		else	true; \
		fi; \
	done
	@if test -d $(LIBRARY); then :; else \
		if test "$(PYTHONFRAMEWORKDIR)" = no-framework; then \
			if test "$(SO)" = .dll; then \
				$(INSTALL_DATA) $(LDLIBRARY) $(DESTDIR)$(LIBPL) ; \
			else \
				$(INSTALL_DATA) $(LIBRARY) $(DESTDIR)$(LIBPL)/$(LIBRARY) ; \
				$(RANLIB) $(DESTDIR)$(LIBPL)/$(LIBRARY) ; \
			fi; \
		else \
			echo Skip install of $(LIBRARY) - use make frameworkinstall; \
		fi; \
	fi
	$(INSTALL_DATA) Modules/config.c $(DESTDIR)$(LIBPL)/config.c
	$(INSTALL_DATA) Modules/python.o $(DESTDIR)$(LIBPL)/python.o
	$(INSTALL_DATA) $(srcdir)/Modules/config.c.in $(DESTDIR)$(LIBPL)/config.c.in
	$(INSTALL_DATA) Makefile $(DESTDIR)$(LIBPL)/Makefile
	$(INSTALL_DATA) Modules/Setup $(DESTDIR)$(LIBPL)/Setup
	$(INSTALL_DATA) Modules/Setup.local $(DESTDIR)$(LIBPL)/Setup.local
	$(INSTALL_DATA) Modules/Setup.config $(DESTDIR)$(LIBPL)/Setup.config
	$(INSTALL_SCRIPT) $(srcdir)/Modules/makesetup $(DESTDIR)$(LIBPL)/makesetup
	$(INSTALL_SCRIPT) $(srcdir)/install-sh $(DESTDIR)$(LIBPL)/install-sh
	# Substitution happens here, as the completely-expanded BINDIR
	# is not available in configure
	sed -e "s,@EXENAME@,$(BINDIR)/python$(VERSION)$(EXE)," < $(srcdir)/Misc/python-config.in >python-config
	$(INSTALL_SCRIPT) python-config $(DESTDIR)$(BINDIR)/python$(VERSION)-config
	rm python-config
	@if [ -s Modules/python.exp -a \
		"`echo $(MACHDEP) | sed 's/^\(...\).*/\1/'`" = "aix" ]; then \
		echo; echo "Installing support files for building shared extension modules on AIX:"; \
		$(INSTALL_DATA) Modules/python.exp		\
				$(DESTDIR)$(LIBPL)/python.exp;		\
		echo; echo "$(LIBPL)/python.exp";		\
		$(INSTALL_SCRIPT) $(srcdir)/Modules/makexp_aix	\
				$(DESTDIR)$(LIBPL)/makexp_aix;		\
		echo "$(LIBPL)/makexp_aix";			\
		$(INSTALL_SCRIPT) $(srcdir)/Modules/ld_so_aix	\
				$(DESTDIR)$(LIBPL)/ld_so_aix;		\
		echo "$(LIBPL)/ld_so_aix";			\
		echo; echo "See Misc/AIX-NOTES for details.";	\
	else true; \
	fi

# Install the dynamically loadable modules
# This goes into $(exec_prefix)
sharedinstall:
	$(RUNSHARED) ./$(BUILDPYTHON) -E $(srcdir)/setup.py install \
	   	--prefix=$(prefix) \
		--install-scripts=$(BINDIR) \
		--install-platlib=$(DESTSHARED) \
		--root=/$(DESTDIR)

# Here are a couple of targets for MacOSX again, to install a full
# framework-based Python. frameworkinstall installs everything, the
# subtargets install specific parts. Much of the actual work is offloaded to
# the Makefile in Mac
#
#
# This target is here for backward compatiblity, previous versions of Python
# hadn't integrated framework installation in the normal install process.
frameworkinstall: install

# On install, we re-make the framework
# structure in the install location, /Library/Frameworks/ or the argument to
# --enable-framework. If --enable-framework has been specified then we have
# automatically set prefix to the location deep down in the framework, so we
# only have to cater for the structural bits of the framework.

frameworkinstallframework: frameworkinstallstructure install frameworkinstallmaclib

frameworkinstallstructure:	$(LDLIBRARY)
	@if test "$(PYTHONFRAMEWORKDIR)" = no-framework; then \
		echo Not configured with --enable-framework; \
		exit 1; \
	else true; \
	fi
	@for i in $(prefix)/Resources/English.lproj $(prefix)/lib; do\
		if test ! -d $(DESTDIR)$$i; then \
			echo "Creating directory $(DESTDIR)$$i"; \
			$(INSTALL) -d -m $(DIRMODE) $(DESTDIR)$$i; \
		else	true; \
		fi; \
	done
	$(LN) -fsn include/python$(VERSION) $(DESTDIR)$(prefix)/Headers
	sed 's/%VERSION%/'"`$(RUNSHARED) ./$(BUILDPYTHON) -c 'import platform; print platform.python_version()'`"'/g' < $(RESSRCDIR)/Info.plist > $(DESTDIR)$(prefix)/Resources/Info.plist
	$(LN) -fsn $(VERSION) $(DESTDIR)$(PYTHONFRAMEWORKINSTALLDIR)/Versions/Current
	$(LN) -fsn Versions/Current/$(PYTHONFRAMEWORK) $(DESTDIR)$(PYTHONFRAMEWORKINSTALLDIR)/$(PYTHONFRAMEWORK)
	$(LN) -fsn Versions/Current/Headers $(DESTDIR)$(PYTHONFRAMEWORKINSTALLDIR)/Headers
	$(LN) -fsn Versions/Current/Resources $(DESTDIR)$(PYTHONFRAMEWORKINSTALLDIR)/Resources
	$(INSTALL_SHARED) $(LDLIBRARY) $(DESTDIR)$(PYTHONFRAMEWORKPREFIX)/$(LDLIBRARY)

# This installs Mac/Lib into the framework
# Install a number of symlinks to keep software that expects a normal unix
# install (which includes python-config) happy.
frameworkinstallmaclib:
	ln -fs "../../../$(PYTHONFRAMEWORK)" "$(DESTDIR)$(prefix)/lib/python$(VERSION)/config/libpython$(VERSION).a"
	cd Mac && $(MAKE) installmacsubtree DESTDIR="$(DESTDIR)"

# This installs the IDE, the Launcher and other apps into /Applications
frameworkinstallapps:
	cd Mac && $(MAKE) installapps DESTDIR="$(DESTDIR)"

# This install the unix python and pythonw tools in /usr/local/bin
frameworkinstallunixtools:
	cd Mac && $(MAKE) installunixtools DESTDIR="$(DESTDIR)"

frameworkaltinstallunixtools:
	cd Mac && $(MAKE) altinstallunixtools DESTDIR="$(DESTDIR)"

# This installs the Demos and Tools into the applications directory.
# It is not part of a normal frameworkinstall
frameworkinstallextras:
	cd Mac && Make installextras DESTDIR="$(DESTDIR)"

# This installs a few of the useful scripts in Tools/scripts
scriptsinstall:
	SRCDIR=$(srcdir) $(RUNSHARED) \
	./$(BUILDPYTHON) $(srcdir)/Tools/scripts/setup.py install \
	--prefix=$(prefix) \
	--install-scripts=$(BINDIR) \
	--root=/$(DESTDIR)

# Build the toplevel Makefile
Makefile.pre: Makefile.pre.in config.status
	CONFIG_FILES=Makefile.pre CONFIG_HEADERS= $(SHELL) config.status
	$(MAKE) -f Makefile.pre Makefile

# Run the configure script.
config.status:	$(srcdir)/configure
	$(SHELL) $(srcdir)/configure $(CONFIG_ARGS)

.PRECIOUS: config.status $(BUILDPYTHON) Makefile Makefile.pre

# Some make's put the object file in the current directory
.c.o:
	$(CC) -c $(PY_CFLAGS) -o $@ $<

# Run reindent on the library
reindent:
	./$(BUILDPYTHON) $(srcdir)/Tools/scripts/reindent.py -r $(srcdir)/Lib

# Rerun configure with the same options as it was run last time,
# provided the config.status script exists
recheck:
	$(SHELL) config.status --recheck
	$(SHELL) config.status

# Rebuild the configure script from configure.in; also rebuild pyconfig.h.in
autoconf:
	(cd $(srcdir); autoconf)
	(cd $(srcdir); autoheader)

# Create a tags file for vi
tags::
	cd $(srcdir); \
	ctags -w -t Include/*.h; \
	for i in $(SRCDIRS); do ctags -w -t -a $$i/*.[ch]; \
	done; \
	sort -o tags tags

# Create a tags file for GNU Emacs
TAGS::
	cd $(srcdir); \
	etags Include/*.h; \
	for i in $(SRCDIRS); do etags -a $$i/*.[ch]; done

# Sanitation targets -- clean leaves libraries, executables and tags
# files, which clobber removes those as well
pycremoval:
	find $(srcdir) -name '*.py[co]' -exec rm -f {} ';'

rmtestturds:
	-rm -f *BAD *GOOD *SKIPPED
	-rm -rf OUT
	-rm -f *.TXT
	-rm -f *.txt
	-rm -f gb-18030-2000.xml

docclean:
	-rm -rf Doc/build
	-rm -rf Doc/tools/sphinx Doc/tools/pygments Doc/tools/docutils

clean: pycremoval
	find . -name '*.o' -exec rm -f {} ';'
	find . -name '*.s[ol]' -exec rm -f {} ';'
	find $(srcdir)/build -name 'fficonfig.h' -exec rm -f {} ';' || true
	find $(srcdir)/build -name 'fficonfig.py' -exec rm -f {} ';' || true

profile-removal:
	find . -name '*.gc??' -exec rm -f {} ';'

clobber: clean profile-removal
	-rm -f $(BUILDPYTHON) $(PGEN) $(LIBRARY) $(LDLIBRARY) $(DLLLIBRARY) \
		tags TAGS \
		config.cache config.log pyconfig.h Modules/config.c
	-rm -rf build platform
	-rm -rf $(PYTHONFRAMEWORKDIR)

# Make things extra clean, before making a distribution:
# remove all generated files, even Makefile[.pre]
# Keep configure and Python-ast.[ch], it's possible they can't be generated
distclean: clobber
	-rm -f core Makefile Makefile.pre config.status \
		Modules/Setup Modules/Setup.local Modules/Setup.config
	find $(srcdir) '(' -name '*.fdc' -o -name '*~' \
			   -o -name '[@,#]*' -o -name '*.old' \
			   -o -name '*.orig' -o -name '*.rej' \
			   -o -name '*.bak' ')' \
			   -exec rm -f {} ';'

# Check for smelly exported symbols (not starting with Py/_Py)
smelly: all
	nm -p $(LIBRARY) | \
		sed -n "/ [TDB] /s/.* //p" | grep -v "^_*Py" | sort -u; \

# Find files with funny names
funny:
	find $(DISTDIRS) \
		-name .svn -prune \
		-o -type d \
		-o -name '*.[chs]' \
		-o -name '*.py' \
		-o -name '*.doc' \
		-o -name '*.dat' \
		-o -name '*.el' \
		-o -name '*.fd' \
		-o -name '*.in' \
		-o -name '*.gif' \
		-o -name '*.txt' \
		-o -name '*.xml' \
		-o -name '*.xbm' \
		-o -name '*.xpm' \
		-o -name '*.uue' \
		-o -name '*.decTest' \
		-o -name '*,[vpt]' \
		-o -name 'Setup' \
		-o -name 'Setup.*' \
		-o -name regen \
		-o -name README \
		-o -name Makefile \
		-o -name ChangeLog \
		-o -name Repository \
		-o -name Root \
		-o -name Entries \
		-o -name Tag \
		-o -name tags \
		-o -name TAGS \
		-o -name .cvsignore \
		-o -name MANIFEST \
		-o -print

# Perform some verification checks on any modified files.
check:
	./$(BUILDPYTHON) $(srcdir)/Tools/scripts/patchcheck.py

# Dependencies

Python/thread.o: @THREADHEADERS@

# Declare targets that aren't real files
.PHONY: all build_all sharedmods oldsharedmods test quicktest memtest
.PHONY: install altinstall oldsharedinstall bininstall altbininstall
.PHONY: maninstall libinstall inclinstall libainstall sharedinstall
.PHONY: frameworkinstall frameworkinstallframework frameworkinstallstructure
.PHONY: frameworkinstallmaclib frameworkinstallapps frameworkinstallunixtools
.PHONY: frameworkaltinstallunixtools recheck autoconf clean clobber distclean 
.PHONY: smelly funny

# IF YOU PUT ANYTHING HERE IT WILL GO AWAY