tools/wineinstall

   1 #!/bin/bash
   2 # WINE Installation script
   3 # Can do almost everything from compiling to configuring...
   4 #
   5 # Copyright 1999 Ove Kåven
   6 #
   7 # This library is free software; you can redistribute it and/or
   8 # modify it under the terms of the GNU Lesser General Public
   9 # License as published by the Free Software Foundation; either
  10 # version 2.1 of the License, or (at your option) any later version.
  11 #
  12 # This library is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 # Lesser General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU Lesser General Public
  18 # License along with this library; if not, write to the Free Software
  19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20 #
  21
  22 #--- defaults (change these if you are a packager)
  23 CONFARGS=""                   # configure args, e.g. --prefix=/usr --sysconfdir=/etc
  24 prefix=/usr/local             # installation prefix
  25 sysconfdir=$prefix/etc        # where wine.conf and the global registry are supposed to be
  26 bindir=$prefix/bin            # where winelib apps will be (or are) installed
  27 libdir=$prefix/lib            # where libwine.so will be (or is) installed
  28 exdir=documentation/samples   # where the sample system.ini resides
  29 GCONF=$sysconfdir/wine.conf   # default path of the wine.conf global config file
  30 LCONF=~/.wine/config          # default path of the local config file
  31 BINDIST=no                    # whether called from a binary package config script
  32 DOGLOBALCONF=auto             # whether to autogenerate wine.conf
  33 DOLOCALCONF=auto              # whether to autogenerate localconf
  34 DOWCHK=auto                   # whether to autoconfigure existing-windows installation
  35 DOWINE=auto                   # whether to autoconfigure no-windows installation
  36 DOREG=auto                    # whether to install default registry
  37 DOAPP=auto                    # whether to install applications, distributed with Wine
  38 SYSREG=yes                    # whether to make root's registry global (system-default)
  39
  40 # "make install" still installs the dlls into $libdir, but this may change in the future
  41 # (DLLPATH should point to them if/when they are not in standard ld.so paths)
  42 DLLPATH=$libdir/wine          # default path of the dll .so files (except libwine.so)
  43
  44 # this is only for existing-windows installs
  45 WINECONF=tools/wineconf       # path to the wineconf perl script
  46
  47 # this is only for no-windows installs
  48 WINEINI=$exdir/config         # path to the default wine config file (also used by wineconf)
  49 WININI=/dev/null              # path to the default win.ini
  50 SYSTEMINI=$exdir/system.ini   # path to the default system.ini
  51 REGEDIT=programs/regedit/regedit       # path to the regedit winelib application
  52 DEFREG=winedefault.reg        # path of the registry file to be fed to regedit
  53 # CROOT=/var/wine             # path of the fake Drive C (asks user if not set)
  54 DEFCAT=cat                    # program to cat $DEFREG with (some packages need zcat)
  55 #--- end of defaults
  56
  57 # temporary files used by the installer
  58 TMPCONF=/tmp/wineinstall.conf
  59
  60 # functions
  61
  62 function std_sleep {
  63   sleep 1
  64 }
  65
  66 function conf_question {
  67   # parameters: $1 = importance, $2 = question-id, $3+ = message lines
  68   # the first two parameters can be used by e.g. debconf in debian packages
  69   # but here we just print the message
  70   shift 2
  71   echo
  72   local LINE="$1"
  73   while shift
  74   do {
  75     echo "$LINE"
  76     LINE="$1"
  77   }
  78   done
  79 }
  80
  81 function conf_reset_question {
  82   # parameters: $1 = question-id
  83   # this is used to flush any cached answers and "already-displayed" flags
  84   shift # dummy command
  85 }
  86
  87 function conf_yesno_answer {
  88   unset ANSWER
  89   while [ "$ANSWER" != 'yes' ] && [ "$ANSWER" != 'no' ]
  90   do {
  91     echo -n "$1"
  92     read ANSWER
  93   }
  94   done
  95 }
  96
  97 function conf_string_answer {
  98   echo -n "$1"
  99   read ANSWER
 100 }
 101
 102 function create_windows_directories {
 103   for tdir in "$CROOT/windows" "$CROOT/windows/system" \
 104               "$CROOT/windows/command" \
 105               "$CROOT/windows/Start Menu" "$CROOT/windows/Start Menu/Programs" \
 106               "$CROOT/Program Files" "$CROOT/Program Files/Common Files" \
 107               "$CROOT/windows/Profiles" "$CROOT/windows/Profiles/Administrator" \
 108               "$CROOT/windows/Fonts" "$CROOT/windows/Start Menu/Programs/Startup"
 109   do [ -d "$tdir" ] || mkdir "$tdir"
 110   done
 111   [ -f "$CROOT/windows/win.ini" ]    || cp "$WININI"    "$CROOT/windows/win.ini"
 112   [ -f "$CROOT/windows/system.ini" ] || cp "$SYSTEMINI" "$CROOT/windows/system.ini"
 113 }
 114
 115 #creates symbolic link in windows directory to installed winelib application
 116 #parameters:
 117 # - name of the installed winelib application
 118 # - full path to application in the winelib directory
 119 function link_app {
 120   if [ "$WINEINSTALLED" = 'no' ]
 121   then {
 122     ln -sf $PWD/programs/$1/$1.exe.so $2
 123   }
 124   else {
 125     ln -sf $libdir/wine/$1.exe.so $2
 126   }
 127   fi
 128 }
 129
 130 #puts windows applications replacements to windows directories,
 131 #configures them
 132 function configure_wine_applications {
 133   link_app start        "$CROOT/windows/command/start.exe"
 134   link_app notepad      "$CROOT/windows/notepad.exe"
 135   link_app regedit      "$CROOT/windows/regedit.exe"
 136   link_app rundll32     "$CROOT/windows/rundll32.exe"
 137   link_app wcmd         "$CROOT/windows/system/wcmd.exe"
 138   link_app control      "$CROOT/windows/system/control.exe"
 139   link_app winhelp      "$CROOT/windows/system/help.exe"
 140   link_app notepad      "$CROOT/windows/system/notepad.exe"
 141   link_app progman      "$CROOT/windows/system/progman.exe"
 142   link_app regsvr32     "$CROOT/windows/system/regsvr32.exe"
 143   link_app winemine     "$CROOT/windows/system/winmine.exe"
 144   link_app winver       "$CROOT/windows/system/winver.exe"
 145   link_app uninstaller  "$CROOT/windows/uninstall.exe"
 146   link_app winhelp      "$CROOT/windows/winhelp.exe"
 147   link_app winhelp      "$CROOT/windows/winhlp32.exe"
 148 }
 149
 150 # startup...
 151
 152 echo "WINE Installer v0.74"
 153 echo
 154
 155 # check for redhat 9 with tls libs so we can enable --with-nptl until runtime detection is complete
 156 if [ -e /etc/redhat-release ] && grep "Shrike" /etc/redhat-release &>/dev/null && [ -e /lib/tls ]; then
 157     CONFARGS="$CONFARGS --with-nptl"
 158 fi
 159
 160 if [ "$BINDIST" = 'no' ]
 161 then {
 162
 163   if ! [ -f configure ]
 164   then {
 165     if [ -f ../configure ]
 166     then {
 167       pushd ..
 168     }
 169     else {
 170       echo "You're running this from the wrong directory."
 171       echo "Change to the Wine source's main directory and try again."
 172       exit 1
 173     }
 174     fi
 175   }
 176   fi
 177
 178   if [ `whoami` == 'root' ]
 179   then {
 180     echo "You are running wineinstall as root, this is not advisable. Please rerun as a user."
 181     echo "Aborting."
 182     exit 1
 183   }
 184   fi
 185
 186   # check whether RPM installed, and if it is, remove any old wine rpm.
 187   hash rpm &>/dev/null
 188   RET=$?
 189   if [ $RET -eq 0 ]; then
 190     if [ -n "`rpm -qi wine 2>/dev/null|grep "^Name"`" ]; then
 191       echo "Warning: Old Wine RPM install detected. Do you want to remove it first?"
 192       conf_yesno_answer "(yes/no) "
 193       if [ "$ANSWER" = 'yes' ]; then
 194         echo "We need to remove the rpm as root, please enter your root password"
 195         echo
 196         echo Starting wine rpm removal...
 197         su -c "rpm -e wine; RET=$?"
 198         if [ $RET -eq 0 ]; then
 199           echo Done.
 200         else
 201           echo "FAILED. Probably you aren't installing as root."
 202           echo "Expect problems (library conflicts with existing install etc.)."
 203         fi
 204       else
 205         echo "Sorry, I won't install Wine when an rpm version is still installed."
 206         echo "(Wine support suffered from way too many conflicts between RPM"
 207         echo "and source installs)"
 208         echo "Have a nice day !"
 209         exit 1
 210       fi
 211     fi
 212   fi
 213
 214   # check whether wine binary still available
 215   if [ -n "`which wine 2>/dev/null|grep '/wine'`" ]; then
 216     echo "Warning !! wine binary (still) found, which may indicate"
 217     echo "a (conflicting) previous installation."
 218     echo "You might want to abort and uninstall Wine first."
 219     std_sleep
 220   fi
 221
 222   # run the configure script, if necessary
 223
 224   if [ -f config.cache ] && [ -f Makefile ] && [ Makefile -nt configure ]
 225   then {
 226     echo
 227     echo "I see that WINE has already been configured, so I'll skip that."
 228     std_sleep
 229     # load configure results
 230     . ./config.cache
 231   }
 232   else {
 233     echo "Running configure..."
 234     echo
 235     if ! ./configure -C $CONFARGS --prefix=$prefix
 236     then {
 237       echo
 238       echo "Configure failed, aborting install."
 239       rm -f config.cache
 240       exit 1
 241     }
 242     fi
 243     # load configure results
 244     . ./config.cache
 245     # make sure X was found
 246     eval "$ac_cv_have_x"
 247     if [ "$have_x" != "yes" ]
 248     then {
 249       echo "Install the X development headers and try again."
 250       rm -f config.cache
 251       exit 1
 252     }
 253     fi
 254   }
 255   fi
 256
 257   # now do the compilation and install, we need to always do this because we
 258   # don't want the 'make install' command we might run to run 'make' as root
 259   if [ `whoami` != 'root' ]
 260   then {
 261     # ask the user if they want to build and install wine
 262     echo
 263     echo "We need to install wine as root user, do you want us to build wine,"
 264     echo "'su root' and install Wine?  Enter 'no' to continue without installing"
 265     conf_yesno_answer "(yes/no) "
 266     ROOTINSTALL="$ANSWER"
 267
 268     if [ "$ROOTINSTALL" = "yes" ]
 269     then {
 270       # start out with the basic command
 271       sucommand="make install"
 272
 273       # if the user doesn't have $libdir in their ld.so.conf add this
 274       # to our sucommand string
 275       if [ -f /etc/ld.so.conf ]
 276       then
 277         if ! grep -qs "$libdir" /etc/ld.so.conf
 278         then {
 279           echo
 280           echo "$libdir doesn't exist in your /etc/ld.so.conf, it will be added"
 281           echo "when we perform the install..."
 282           sucommand="$sucommand;echo $libdir>>/etc/ld.so.conf"
 283         }
 284         fi
 285         # run ldconfig always just in case some updated files dont get linked
 286         sucommand="$sucommand;$ac_cv_path_LDCONFIG"
 287       fi
 288     }
 289     fi # [ "$ROOTINSTALL" = "yes" ]
 290
 291     echo
 292
 293     echo "Compiling WINE. Grab a lunch or two, rent a video, or whatever,"
 294     echo "in the meantime..."
 295     echo
 296     std_sleep
 297
 298     # try to just make wine, if this fails 'make depend' and try to remake
 299     if ! { make; }
 300     then {
 301       if ! { make depend && make; }
 302       then {
 303         echo
 304         echo "Compilation failed, aborting install."
 305         exit 1
 306       }
 307       fi
 308     }
 309     fi
 310
 311     if [ "$ROOTINSTALL" = "yes" ]
 312     then {
 313       echo
 314
 315       echo "Performing 'make install' as root to install binaries, enter root password"
 316
 317       std_sleep
 318
 319       if ! su root -c "$sucommand"
 320       then {
 321         if ! su root -c "$sucommand"
 322         then {
 323              echo
 324              echo "Either you entered an incorrect password or we failed to"
 325              echo "run '$sucommand' correctly."
 326              echo "If you didn't enter an incorrect password then please"
 327              echo "report this error and any steps to possibly reproduce it to"
 328              echo "http://bugs.winehq.com/"
 329              echo
 330              echo "Installation failed, aborting."
 331              exit 1
 332          }
 333          fi
 334        }
 335       fi
 336
 337       echo
 338
 339       # see if wine is installed on the users system, if not prompt them
 340       # and then exit
 341       if [ ! `which wine` ]
 342       then
 343         echo "Could not find wine on your system.  Run wineinstall as root to install wine"
 344         echo "before re-running wineinstall as a user."
 345         echo
 346         echo "Exiting wineinstall"
 347         exit 1;
 348       fi
 349
 350       WINEINSTALLED=yes
 351     }
 352     else {
 353       # user didn't want to install wine so tell them about running from the
 354       # current directory and set some stuff up for them
 355
 356       # setup to run from current directory
 357       DLLPATH="$PWD/dlls"
 358       if [ -z "$LD_LIBRARY_PATH" ]
 359       then LD_LIBRARY_PATH="$PWD:$DLLPATH"
 360       else LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$PWD:$DLLPATH"
 361       fi
 362       export LD_LIBRARY_PATH
 363       echo
 364       echo "NOTE! To run Wine without installing, you must set the environment variable"
 365       echo "LD_LIBRARY_PATH to $PWD:$DLLPATH"
 366       echo "in your logon scripts."
 367       echo
 368
 369       WINEINSTALLED=no
 370     }
 371     fi # [ "$ROOTINSTALL" = "yes" ]
 372   }
 373   fi # [ `whoami` != 'root' ]
 374
 375 }
 376 fi # BINDIST
 377
 378 # now check whether we should generate wine.conf
 379 if [ -z "$DOGLOBALCONF" ]
 380 then
 381   DOGLOBALCONF=auto
 382 fi
 383
 384 if [ "$DOGLOBALCONF" = 'auto' ]
 385 then {
 386   # see if we already have a system wine.conf
 387   if [ ! -f $GCONF ] && [ `whoami` = 'root' ]
 388   then
 389     DOGLOBALCONF=no
 390     echo "Creation of a global config file is not supported in wineinstall at this"
 391     echo "time.  When the configuration architecture is cleaned up this functionality"
 392     echo "will be restored to wineinstall."
 393     echo
 394   fi
 395 }
 396 fi
 397
 398 if [ "$DOLOCALCONF" = 'auto' ]
 399 then {
 400   # see if the user is root, if so, explicitly ask them if they want a
 401   # local config file
 402   if [ `whoami` = 'root' ]
 403   then
 404     echo "You are running as root.  Do you want a local config file,"
 405     echo "file, ~/.wine/config, created?"
 406     conf_yesno_answer "(yes/no) "
 407     DOLOCALCONF="$ANSWER"
 408   else
 409     # if the user has an existing config file ask them if they want us to
 410     # overwrite it, otherwise just ask them if they want to create one
 411     if [ -f "$LCONF" ]
 412     then
 413       echo "Found existing $LCONF, do you want to overwrite this"
 414       echo "existing Wine configuration file?"
 415       conf_yesno_answer "(yes/no) "
 416       DOLOCALCONF="$ANSWER"
 417       echo
 418       if [ "$ANSWER" = "yes" ]
 419       then
 420       {
 421         echo "Would you like to make a backup of this old config file?"
 422         conf_yesno_answer "(yes/no) "
 423         echo
 424         if [ "$ANSWER" = "yes" ]
 425         then
 426         {
 427           echo "Renaming $LCONF to $LCONF.old"
 428           mv -f "$LCONF" "$LCONF.old"
 429           echo
 430         }
 431         fi
 432       }
 433       fi
 434     else
 435     {
 436       echo "Create local config file ~/.wine/config?"
 437       conf_yesno_answer "(yes/no) "
 438       DOLOCALCONF="$ANSWER"
 439       echo
 440       if [ "$ANSWER" = 'no' ]
 441       then
 442         conf_question high need_root \
 443           "Aborting install. Try again as root to generate a system wine.conf."
 444         exit 1
 445       fi
 446     }
 447     fi
 448   fi
 449 }
 450 fi
 451
 452 # generate $TMPCONF from existing windows install, if any
 453 if [ "$DOLOCALCONF" = 'yes' ]
 454 then {
 455   if [ "$DOWCHK" = 'yes' ] || [ "$DOWCHK" = 'auto' ]
 456   then {
 457     echo -n "Searching for an existing Windows installation..."
 458     if ! $WINECONF -inifile "$WINEINI" > $TMPCONF 2>/dev/null
 459     then {
 460       rm -f $TMPCONF > /dev/null
 461
 462       echo " not found. (no matching /etc/fstab mount entry found)"
 463       conf_question low do_without_windows \
 464        "Windows was not found on your system, so I assume you want" \
 465        "a Wine-only installation. Am I correct?"
 466       conf_yesno_answer "(yes/no) "
 467       if [ "$ANSWER" = 'no' ]
 468       then {
 469         conf_question high windows_not_found \
 470          "Aborting install. Make sure your Windows partition is mounted and try again," \
 471          "or create $LCONF manually by copying from $WINEINI and adapting the drive paths."
 472         exit 1
 473       }
 474       fi
 475       DOWINE=yes
 476     }
 477     else {
 478       echo " found."
 479
 480       conf_question low do_without_windows \
 481        "Windows was found on your system, and so we can use the Windows" \
 482        "Drive as our Wine drive. You may, however, wish to create a clean" \
 483        "Wine install anyways."
 484       conf_yesno_answer "Should I use the Windows drive for the Wine install? (yes/no) "
 485       if [ "$ANSWER" = 'yes' ]
 486       then {
 487         conf_reset_question windows_found
 488         conf_question low windows_found \
 489          "Created $LCONF using your existing Windows installation." \
 490          "You probably want to review the file, though."
 491         DOWINE=no
 492       }
 493       else {
 494         DOWINE=yes
 495       }
 496       fi
 497     }
 498     fi
 499   }
 500   elif [ "$DOWINE" = 'auto' ]
 501   then DOWINE=yes
 502   fi
 503 }
 504 elif [ "$DOWINE" = 'auto' ]
 505 then
 506   DOWINE=no
 507 fi
 508
 509 # setup a no-windows installation, if necessary
 510 if [ "$DOWINE" = 'yes' ]
 511 then {
 512   # set an appropriate DCROOT
 513   if [ `whoami` != 'root' ]
 514   then DCROOT=~/c
 515   else DCROOT=/c
 516   fi
 517
 518   conf_question low drivec_path \
 519      "Configuring Wine without Windows." \
 520      "Some fake Windows directories must be created, to hold any .ini files, DLLs," \
 521      "start menu entries, and other things your applications may need to install." \
 522      "Where would you like your fake C drive to be placed?"
 523   while [ -z "$CROOT" ]
 524   do {
 525     conf_string_answer "(default is $DCROOT) "
 526     [ -z "$ANSWER" ] && ANSWER="$DCROOT"
 527     if ! [ -d "$ANSWER" ]
 528     then {
 529       if mkdir -p "$ANSWER"
 530       then CROOT="$ANSWER"
 531       else
 532           echo "Directory $ANSWER can't be created !"
 533           conf_reset_question drivec_path
 534       fi
 535     }
 536     else CROOT="$ANSWER"
 537     fi
 538   }
 539   done
 540   echo "Configuring Wine for a no-windows install in $CROOT..."
 541
 542     create_windows_directories
 543     configure_wine_applications
 544
 545   # create $LCONF using the default config file $WINEINI
 546   if [ "$DOLOCALCONF" = 'yes' ]
 547   then {
 548     sed "s|\"Path\" = \"/c\"\$|\"Path\" = \"${CROOT}\"|" $WINEINI > $TMPCONF
 549     conf_reset_question default_config
 550     conf_question low default_config \
 551      "Created $LCONF using default Wine configuration." \
 552      "You probably want to review the file, though."
 553   }
 554   fi
 555
 556   # now we really should install the registry
 557   if [ "$DOREG" = 'auto' ]
 558   then DOREG=yes
 559   fi
 560 }
 561 fi
 562 echo
 563
 564 #install the local config file $LCONF
 565 if [ "$DOLOCALCONF" = 'yes' ]
 566 then
 567   if [ ! -w ~/.wine ]
 568   then
 569     mkdir ~/.wine
 570   fi
 571   cp $TMPCONF $LCONF > /dev/null
 572 else
 573   DOREG=no
 574 fi
 575
 576 #install the global config file $GCONF
 577 if [ "$DOGLOBALCONF" = 'yes' ]
 578 then
 579   if [ ! -f $sysconfdir ]
 580   then
 581     mkdir -p $sysconfdir
 582   fi
 583
 584   cp $TMPCONF $GCONF > /dev/null
 585 fi
 586
 587 # check whether we need to install default registry
 588 # (not to be done if windows registry exists)
 589 if [ "$DOREG" = 'auto' ]
 590 then {
 591   CROOT=`sed -n '/^\[Drive C\]$/,/^\[.*\]$/ s/^\"Path\" = \"\(.*\)\"/\1/p' $LCONF`
 592   echo "Checking for real Windows registry..."
 593   if [ -f "$CROOT/windows/system.dat" ]
 594   then DOREG=no
 595   elif [ -f "$CROOT/windows/system32/config/system" ]
 596   then DOREG=no
 597   elif [ -f "$CROOT/WINNT/system32/config/system" ]
 598   then DOREG=no
 599   else DOREG=yes
 600   fi
 601   if [ "$DOREG" = 'yes' ]
 602   then echo "Not found, default Wine registry will be installed."
 603   else echo "Windows registry found, will not install default Wine registry."
 604   fi
 605   echo
 606 }
 607 fi
 608
 609 # install default registry entries
 610 if [ "$DOREG" = 'yes' ]
 611 then {
 612   if [ "$BINDIST" = 'no' ]
 613   then {
 614     echo "Compiling regedit..."
 615     (cd programs/regedit; make)
 616     echo
 617   }
 618   fi
 619   echo "Preparing to install default Wine registry entries..."
 620
 621   # Make sure we are on a Windows drive
 622   mv $LCONF $LCONF.orig
 623   sed "s/\"Path\" = \"\${HOME}\"$/\"Path\" = \"\${PWD}\"/" $LCONF.orig> $LCONF
 624
 625   echo "Installing default Wine registry entries..."
 626   echo
 627   if ! $REGEDIT $DEFREG > /dev/null
 628   then {
 629     echo "Registry install failed."
 630     mv $LCONF.orig $LCONF
 631     conf_reset_question regedit_error
 632     conf_question high regedit_error
 633     exit 1
 634   }
 635   else {
 636     echo
 637     echo "Registry entries successfully installed."
 638     mv $LCONF.orig $LCONF
 639   }
 640   fi
 641   if [ "$SYSREG" = 'auto' ]
 642   then SYSREG=yes
 643   fi
 644 }
 645 fi
 646
 647 # make root's registry global, if desired
 648 if [ `whoami` = 'root' ] && [ "$DOREG" = 'yes' ] && [ "$SYSREG" = 'yes' ]
 649 then {
 650   [ -d ~/.wine ] || mkdir ~/.wine
 651   if ! [ -f $sysconfdir/wine.userreg ]
 652   then {
 653     echo "Linking root's user registry hive to the global registry..."
 654     [ -f ~/.wine/wine.userreg ] && cp ~/.wine/wine.userreg $sysconfdir/wine.userreg
 655     ln -sf $sysconfdir/wine.userreg ~/.wine/wine.userreg
 656   }
 657   fi
 658   if ! [ -f $sysconfdir/wine.systemreg ]
 659   then {
 660     echo "Linking root's system registry hive to the global registry..."
 661     [ -f ~/.wine/system.reg ] && cp ~/.wine/system.reg $sysconfdir/wine.systemreg
 662     ln -sf $sysconfdir/wine.systemreg ~/.wine/system.reg
 663   }
 664   fi
 665 }
 666 fi
 667
 668 # cleanup any temporary files that may remain
 669 if [ -f $TMPCONF ]
 670 then rm -f $TMPCONF
 671 fi
 672
 673
 674 # it's a wrap
 675 echo
 676 echo "Installation complete for now. Good luck (this is still alpha software)."
 677 echo "If you have problems with WINE, please read the documentation first,"
 678 echo "as many kinds of potential problems are explained there."
 679
 680 exit 0