2d35116c13
users. If the configure flag `--enable-setuid' is used, the Nix programs nix-env, nix-store, etc. are installed with the setuid bit turned on so that they are executed as the user and group specified by `--with-nix-user=USER' and `--with-nix-group=GROUP', respectively (with defaults `nix' and `nix'). The setuid programs drop all special privileges if they are executed by a user who is not a member of the Nix group. The setuid feature is a quick hack to enable sharing of a Nix installation between users who trust each other. It is not generally secure, since any user in the Nix group can modify (by building an appropriate derivation) any object in the store, and for instance inject trojans into binaries used by other users. The setuid programs are owned by root, not the Nix user. This is because on Unix normal users cannot change the real uid, only the effective uid. Many programs don't work properly when the real uid differs from the effective uid. For instance, Perl will turn on taint mode. However, the setuid programs drop all root privileges immediately, changing all uids and gids to the Nix user and group.
197 lines
5.6 KiB
Plaintext
197 lines
5.6 KiB
Plaintext
AC_INIT(nix, "0.6")
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AC_CONFIG_SRCDIR(README)
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AC_CONFIG_AUX_DIR(config)
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AM_INIT_AUTOMAKE
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# Change to `1' to produce a `stable' release (i.e., the `preREVISION'
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# suffix is not added).
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STABLE=0
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# Put the revision number in the version.
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if test "$STABLE" != "1"; then
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if REVISION=`test -d $srcdir/.svn && svnversion $srcdir 2> /dev/null`; then
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VERSION="${VERSION}pre${REVISION}"
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elif REVISION=`cat $srcdir/svn-revision 2> /dev/null`; then
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VERSION="${VERSION}pre${REVISION}"
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fi
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fi
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AC_PREFIX_DEFAULT(/nix)
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AC_CANONICAL_HOST
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# Construct a Nix system name (like "i686-linux").
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AC_MSG_CHECKING([for the canonical Nix system name])
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cpu_name=$(uname -p | tr 'A-Z ' 'a-z_')
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machine_name=$(uname -m | tr 'A-Z ' 'a-z_')
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case $machine_name in
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i*86)
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machine_name=i686
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;;
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*)
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if test "$cpu_name" != "unknown"; then
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machine_name=$cpu_name
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fi
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;;
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esac
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sys_name=$(uname -s | tr 'A-Z ' 'a-z_')
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AC_ARG_WITH(system, AC_HELP_STRING([--with-system=SYSTEM],
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[platform identifier (e.g., `i686-linux')]),
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system=$withval, system="${machine_name}-${sys_name}")
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AC_MSG_RESULT($system)
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AC_SUBST(system)
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AC_DEFINE_UNQUOTED(SYSTEM, ["$system"], [platform identifier (`cpu-os')])
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AC_PROG_CC
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AC_PROG_CXX
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AC_PROG_RANLIB
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# Check for pubsetbuf.
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AC_MSG_CHECKING([for pubsetbuf])
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AC_LANG_PUSH(C++)
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <iostream>
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using namespace std;
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static char buf[1024];]],
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[[cerr.rdbuf()->pubsetbuf(buf, sizeof(buf));]])],
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[AC_MSG_RESULT(yes) AC_DEFINE(HAVE_PUBSETBUF, 1, [whether pubsetbuf is available])],
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AC_MSG_RESULT(no))
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AC_LANG_POP(C++)
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# Check for <locale>
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AC_LANG_PUSH(C++)
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AC_CHECK_HEADERS([locale])
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AC_LANG_POP(C++)
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AC_DEFUN([NEED_PROG],
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[
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AC_PATH_PROG($1, $2)
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if test -z "$$1"; then
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AC_MSG_ERROR([$2 is required])
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fi
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])
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NEED_PROG(curl, curl)
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NEED_PROG(bzip2, bzip2)
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NEED_PROG(bunzip2, bunzip2)
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NEED_PROG(shell, sh)
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AC_PATH_PROG(xmllint, xmllint, false)
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AC_PATH_PROG(xsltproc, xsltproc, false)
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AC_PATH_PROG(flex, flex, false)
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AC_PATH_PROG(bison, bison, false)
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NEED_PROG(perl, perl)
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AC_ARG_WITH(docbook-catalog, AC_HELP_STRING([--with-docbook-catalog=PATH],
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[path of the DocBook XML DTD]),
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docbookcatalog=$withval, docbookcatalog=/docbook-dtd-missing)
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AC_SUBST(docbookcatalog)
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AC_ARG_WITH(docbook-ebnf-catalog, AC_HELP_STRING([--with-docbook-ebnf-catalog=PATH],
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[path of the DocBook XML EBNF module DTD]),
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docbookebnfcatalog=$withval, docbookcatalog=/docbook-ebnf-dtd-missing)
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AC_SUBST(docbookebnfcatalog)
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AC_ARG_WITH(docbook-xsl, AC_HELP_STRING([--with-docbook-xsl=PATH],
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[path of the DocBook XSL stylesheets]),
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docbookxsl=$withval, docbookxsl=/docbook-xsl-missing)
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AC_SUBST(docbookxsl)
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AC_ARG_WITH(xml-flags, AC_HELP_STRING([--with-xml-flags=FLAGS],
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[extra flags to be passed to xmllint and xsltproc]),
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xmlflags=$withval, xmlflags=)
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AC_SUBST(xmlflags)
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AC_ARG_WITH(store-dir, AC_HELP_STRING([--with-store-dir=PATH],
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[path of the Nix store]),
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storedir=$withval, storedir='${prefix}/store')
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AC_SUBST(storedir)
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AC_ARG_WITH(bdb, AC_HELP_STRING([--with-bdb=PATH],
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[prefix of Berkeley DB]),
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bdb=$withval, bdb=)
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AM_CONDITIONAL(HAVE_BDB, test -n "$bdb")
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if test -z "$bdb"; then
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bdb_lib='-L${top_builddir}/externals/inst-bdb/lib -ldb_cxx'
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bdb_include='-I${top_builddir}/externals/inst-bdb/include'
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else
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bdb_lib="-L$bdb/lib -ldb_cxx"
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bdb_include="-I$bdb/include"
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fi
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AC_SUBST(bdb_lib)
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AC_SUBST(bdb_include)
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AC_ARG_WITH(aterm, AC_HELP_STRING([--with-aterm=PATH],
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[prefix of CWI ATerm library]),
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aterm=$withval, aterm=)
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AM_CONDITIONAL(HAVE_ATERM, test -n "$aterm")
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if test -z "$aterm"; then
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aterm_lib='-L${top_builddir}/externals/inst-aterm/lib -lATerm'
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aterm_include='-I${top_builddir}/externals/inst-aterm/include'
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else
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aterm_lib="-L$aterm/lib -lATerm"
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aterm_include="-I$aterm/include"
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fi
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AC_SUBST(aterm_lib)
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AC_SUBST(aterm_include)
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AC_CHECK_LIB(pthread, pthread_mutex_init)
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AC_ARG_ENABLE(init-state, AC_HELP_STRING([--disable-init-state],
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[do not initialise DB etc. in `make install']),
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init_state=$enableval, init_state=yes)
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AM_CONDITIONAL(INIT_STATE, test "$init_state" = "yes")
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AC_ARG_ENABLE(setuid, AC_HELP_STRING([--enable-setuid],
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[install Nix setuid]),
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setuid_hack=$enableval, setuid_hack=no)
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AM_CONDITIONAL(SETUID_HACK, test "$setuid_hack" = "yes")
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if test "$setuid_hack" = "yes"; then
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AC_DEFINE(SETUID_HACK, 1, [whether to install Nix setuid])
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fi
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AC_ARG_WITH(nix-user, AC_HELP_STRING([--with-nix-user=USER],
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[user for Nix setuid binaries]),
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NIX_USER=$withval, NIX_USER=nix)
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AC_SUBST(NIX_USER)
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AC_DEFINE_UNQUOTED(NIX_USER, ["$NIX_USER"], [Nix user])
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AC_ARG_WITH(nix-group, AC_HELP_STRING([--with-nix-group=USER],
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[group for Nix setuid binaries]),
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NIX_GROUP=$withval, NIX_GROUP=nix)
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AC_SUBST(NIX_GROUP)
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AC_DEFINE_UNQUOTED(NIX_GROUP, ["$NIX_GROUP"], [Nix group])
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AM_CONFIG_HEADER([config.h])
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AC_CONFIG_FILES([Makefile
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externals/Makefile
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src/Makefile
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src/bin2c/Makefile
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src/boost/Makefile
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src/boost/format/Makefile
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src/libutil/Makefile
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src/libstore/Makefile
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src/libmain/Makefile
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src/nix-store/Makefile
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src/nix-hash/Makefile
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src/libexpr/Makefile
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src/nix-instantiate/Makefile
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src/nix-env/Makefile
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src/log2xml/Makefile
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scripts/Makefile
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corepkgs/Makefile
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corepkgs/fetchurl/Makefile
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corepkgs/nar/Makefile
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corepkgs/buildenv/Makefile
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corepkgs/channels/Makefile
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corepkgs/nix-pull/Makefile
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doc/Makefile
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doc/manual/Makefile
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misc/Makefile
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misc/emacs/Makefile
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tests/Makefile
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])
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AC_OUTPUT
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