diplodocus.org Git - nmh/blob - docs/historical/mh-6.8.5/miscellany/patch-2.0.12u8/Configure

   1 #! /bin/sh
   2 #
   3 # If these # comments don't work, trim them.  Don't worry about any other
   4 # shell scripts, Configure will trim # comments from them for you.
   5 #
   6 # (If you are trying to port this package to a machine without sh, I would
   7 # suggest you cut out the prototypical config.h from the end of Configure
   8 # and edit it to reflect your system.  Some packages may include samples
   9 # of config.h for certain machines, so you might look for one of those.)
  10 #
  11 # $Header: Head.U,v 1.0 87/05/22 12:28:10 lwall Exp $
  12 #
  13 # Yes, you may rip this off to use in other distribution packages.
  14 # (Note: this Configure script was generated automatically.  Rather than
  15 # working with this copy of Configure, you may wish to get metaconfig.)
  16
  17 : sanity checks
  18 : the user has a better chance than we do of setting a reasonable PATH
  19 : but add some directories we need that are probably not there
  20 PATH=.:${PATH}:/etc:/usr/lib:/lib
  21 export PATH || (echo "OOPS, this isn't sh.  Desperation time.  I will feed myself to sh."; sh $0; kill $$)
  22
  23 if test ! -t 0; then
  24     echo "Say 'sh Configure', not 'sh <Configure'"
  25     exit 1
  26 fi
  27
  28 (alias) >/dev/null 2>&1 && \
  29     echo "(I see you are using the Korn shell.  Some ksh's blow up on Configure," && \
  30     echo "especially on exotic machines.  If yours does, try the Bourne shell instead.)"
  31
  32 if test ! -d ../UU; then
  33     if test ! -d UU; then
  34         mkdir UU
  35     fi
  36     cd UU
  37 fi
  38
  39 case "$1" in
  40 -d) shift; fastread='yes';;
  41 esac
  42
  43 d_eunice=''
  44 eunicefix=''
  45 define=''
  46 loclist=''
  47 expr=''
  48 sed=''
  49 echo=''
  50 cat=''
  51 rm=''
  52 mv=''
  53 cp=''
  54 tail=''
  55 tr=''
  56 mkdir=''
  57 sort=''
  58 uniq=''
  59 grep=''
  60 trylist=''
  61 test=''
  62 inews=''
  63 egrep=''
  64 more=''
  65 pg=''
  66 Mcc=''
  67 vi=''
  68 mailx=''
  69 mail=''
  70 cpp=''
  71 Log=''
  72 Header=''
  73 bin=''
  74 cc=''
  75 contains=''
  76 cppstdin=''
  77 cppminus=''
  78 d_charsprf=''
  79 d_flexfnam=''
  80 d_index=''
  81 d_voidsig=''
  82 d_dirheader=''
  83 d_unistd=''
  84 libc=''
  85 mansrc=''
  86 manext=''
  87 models=''
  88 split=''
  89 small=''
  90 medium=''
  91 large=''
  92 huge=''
  93 ccflags=''
  94 ldflags=''
  95 n=''
  96 c=''
  97 package=''
  98 registers=''
  99 reg1=''
 100 reg2=''
 101 reg3=''
 102 reg4=''
 103 reg5=''
 104 reg6=''
 105 reg7=''
 106 reg8=''
 107 reg9=''
 108 reg10=''
 109 reg11=''
 110 reg12=''
 111 reg13=''
 112 reg14=''
 113 reg15=''
 114 reg16=''
 115 spitshell=''
 116 shsharp=''
 117 sharpbang=''
 118 startsh=''
 119 voidflags=''
 120 defvoidused=''
 121 CONFIG=''
 122 : set package name
 123 package=patch
 124
 125 echo " "
 126 echo "Beginning of configuration questions for $package kit."
 127 : Eunice requires " " instead of "", can you believe it
 128 echo " "
 129
 130 define='define'
 131 undef='/*undef'
 132 libpth='/usr/lib /usr/local/lib /lib /usr/ccs/lib'
 133 smallmach='pdp11 i8086 z8000 i80286 iAPX286'
 134 rmlist='kit[1-9]isdone kit[1-9][0-9]isdone'
 135 trap 'echo " "; rm -f $rmlist; exit 1' 1 2 3
 136
 137 : We must find out about Eunice early
 138 eunicefix=':'
 139 if test -f /etc/unixtovms; then
 140     eunicefix=/etc/unixtovms
 141 fi
 142 if test -f /etc/unixtovms.exe; then
 143     eunicefix=/etc/unixtovms.exe
 144 fi
 145
 146 attrlist="mc68000 sun gcos unix ibm gimpel interdata tss os mert pyr"
 147 attrlist="$attrlist vax pdp11 i8086 z8000 u3b2 u3b5 u3b20 u3b200"
 148 attrlist="$attrlist ns32000 ns16000 iAPX286 mc300 mc500 mc700 sparc"
 149 attrlist="$attrlist nsc32000 sinix xenix venix posix ansi M_XENIX"
 150 attrlist="$attrlist mc68k m68k __STDC__"
 151 pth=`echo $PATH | tr : ' '`
 152 d_newshome="../../NeWS"
 153 defvoidused=7
 154
 155 : some greps do not return status, grrr.
 156 echo "grimblepritz" >grimble
 157 if grep blurfldyick grimble >/dev/null 2>&1 ; then
 158     contains=contains
 159 elif grep grimblepritz grimble >/dev/null 2>&1 ; then
 160     contains=grep
 161 else
 162     contains=contains
 163 fi
 164 rm -f grimble
 165 : the following should work in any shell
 166 case "$contains" in
 167 contains*)
 168     echo " "
 169     echo "AGH!  Grep doesn't return a status.  Attempting remedial action."
 170     cat >contains <<'EOSS'
 171 grep "$1" "$2" >.greptmp && cat .greptmp && test -s .greptmp
 172 EOSS
 173 chmod +x contains
 174 esac
 175
 176 : first determine how to suppress newline on echo command
 177 echo "Checking echo to see how to suppress newlines..."
 178 (echo "hi there\c" ; echo " ") >.echotmp
 179 if $contains c .echotmp >/dev/null 2>&1 ; then
 180     echo "...using -n."
 181     n='-n'
 182     c=''
 183 else
 184     cat <<'EOM'
 185 ...using \c
 186 EOM
 187     n=''
 188     c='\c'
 189 fi
 190 echo $n "Type carriage return to continue.  Your cursor should be here-->$c"
 191 read ans
 192 rm -f .echotmp
 193
 194 : now set up to do reads with possible shell escape and default assignment
 195 cat <<EOSC >myread
 196 case "\$fastread" in
 197 yes) ans=''; echo " " ;;
 198 *) ans='!';;
 199 esac
 200 while expr "X\$ans" : "X!" >/dev/null; do
 201     read ans
 202     case "\$ans" in
 203     !)
 204         sh
 205         echo " "
 206         echo $n "\$rp $c"
 207         ;;
 208     !*)
 209         set \`expr "X\$ans" : "X!\(.*\)\$"\`
 210         sh -c "\$*"
 211         echo " "
 212         echo $n "\$rp $c"
 213         ;;
 214     esac
 215 done
 216 rp='Your answer:'
 217 case "\$ans" in
 218 '') ans="\$dflt";;
 219 esac
 220 EOSC
 221
 222 : general instructions
 223 cat <<EOH
 224
 225 This installation shell script will examine your system and ask you questions
 226 to determine how the $package package should be installed.  If you get stuck
 227 on a question, you may use a ! shell escape to start a subshell or execute
 228 a command.  Many of the questions will have default answers in square
 229 brackets--typing carriage return will give you the default.
 230
 231 On some of the questions which ask for file or directory names you are
 232 allowed to use the ~name construct to specify the login directory belonging
 233 to "name", even if you don't have a shell which knows about that.  Questions
 234 where this is allowed will be marked "(~name ok)".
 235
 236 EOH
 237 rp="[Type carriage return to continue]"
 238 echo $n "$rp $c"
 239 . myread
 240 cat <<EOH
 241
 242 Much effort has been expended to ensure that this shell script will run
 243 on any Unix system.  If despite that it blows up on you, your best bet is
 244 to edit Configure and run it again. Also, let me (lwall@netlabs.com)
 245 know how I blew it.  If you can't run Configure for some reason, you'll have
 246 to generate a config.sh file by hand.
 247
 248 This installation script affects things in two ways: 1) it may do direct
 249 variable substitutions on some of the files included in this kit, and
 250 2) it builds a config.h file for inclusion in C programs.  You may edit
 251 any of these files as the need arises after running this script.
 252
 253 If you make a mistake on a question, there is no easy way to back up to it
 254 currently.  The easiest thing to do is to edit config.sh and rerun all the
 255 SH files.  Configure will offer to let you do this before it runs the SH files.
 256
 257 EOH
 258 rp="[Type carriage return to continue]"
 259 echo $n "$rp $c"
 260 . myread
 261
 262 : get old answers, if there is a config file out there
 263 if test -f ../config.sh; then
 264     echo " "
 265     dflt=y
 266     rp="I see a config.sh file.  Did Configure make it on THIS system? [$dflt]"
 267     echo $n "$rp $c"
 268     . myread
 269     case "$ans" in
 270     n*) echo "OK, I'll ignore it.";;
 271     *)  echo "Fetching default answers from your old config.sh file..."
 272         tmp="$n"
 273         ans="$c"
 274         . ../config.sh
 275         n="$tmp"
 276         c="$ans"
 277         ;;
 278     esac
 279 fi
 280
 281 : find out where common programs are
 282 echo " "
 283 echo "Locating common programs..."
 284 cat <<EOSC >loc
 285 $startsh
 286 case \$# in
 287 0) exit 1;;
 288 esac
 289 thing=\$1
 290 shift
 291 dflt=\$1
 292 shift
 293 for dir in \$*; do
 294     case "\$thing" in
 295     .)
 296         if test -d \$dir/\$thing; then
 297             echo \$dir
 298             exit 0
 299         fi
 300         ;;
 301     *)
 302         if test -f \$dir/\$thing; then
 303             echo \$dir/\$thing
 304             exit 0
 305         elif test -f \$dir/\$thing.exe; then
 306             : on Eunice apparently
 307             echo \$dir/\$thing
 308             exit 0
 309         fi
 310         ;;
 311     esac
 312 done
 313 echo \$dflt
 314 exit 1
 315 EOSC
 316 chmod +x loc
 317 $eunicefix loc
 318 loclist="
 319 expr
 320 sed
 321 echo
 322 cat
 323 rm
 324 tr
 325 grep
 326 "
 327 trylist="
 328 test
 329 Mcc
 330 cpp
 331 "
 332 for file in $loclist; do
 333     xxx=`loc $file $file $pth`
 334     eval $file=$xxx
 335     eval _$file=$xxx
 336     case "$xxx" in
 337     /*)
 338         echo $file is in $xxx.
 339         ;;
 340     *)
 341         echo "I don't know where $file is.  I hope it's in everyone's PATH."
 342         ;;
 343     esac
 344 done
 345 echo " "
 346 echo "Don't worry if any of the following aren't found..."
 347 ans=offhand
 348 for file in $trylist; do
 349     xxx=`loc $file $file $pth`
 350     eval $file=$xxx
 351     eval _$file=$xxx
 352     case "$xxx" in
 353     /*)
 354         echo $file is in $xxx.
 355         ;;
 356     *)
 357         echo "I don't see $file out there, $ans."
 358         ans=either
 359         ;;
 360     esac
 361 done
 362 case "$egrep" in
 363 egrep)
 364     echo "Substituting grep for egrep."
 365     egrep=$grep
 366     ;;
 367 esac
 368 case "$test" in
 369 test)
 370     echo "Hopefully test is built into your sh."
 371     ;;
 372 /bin/test)
 373     echo " "
 374     dflt=n
 375     rp="Is your "'"'"test"'"'" built into sh? [$dflt] (OK to guess)"
 376     echo $n "$rp $c"
 377     . myread
 378     case "$ans" in
 379     y*) test=test ;;
 380     esac
 381     ;;
 382 *)
 383     test=test
 384     ;;
 385 esac
 386 case "$echo" in
 387 echo)
 388     echo "Hopefully echo is built into your sh."
 389     ;;
 390 /bin/echo)
 391     echo " "
 392     echo "Checking compatibility between /bin/echo and builtin echo (if any)..."
 393     $echo $n "hi there$c" >foo1
 394     echo $n "hi there$c" >foo2
 395     if cmp foo1 foo2 >/dev/null 2>&1; then
 396         echo "They are compatible.  In fact, they may be identical."
 397     else
 398         case "$n" in
 399         '-n') n='' c='\c' ans='\c' ;;
 400         *) n='-n' c='' ans='-n' ;;
 401         esac
 402         cat <<FOO
 403 They are not compatible!  You are probably running ksh on a non-USG system.
 404 I'll have to use /bin/echo instead of the builtin, since Bourne shell doesn't
 405 have echo built in and we may have to run some Bourne shell scripts.  That
 406 means I'll have to use $ans to suppress newlines now.  Life is ridiculous.
 407
 408 FOO
 409         rp="Your cursor should be here-->"
 410         $echo $n "$rp$c"
 411         . myread
 412     fi
 413     $rm -f foo1 foo2
 414     ;;
 415 *)
 416     : cross your fingers
 417     echo=echo
 418     ;;
 419 esac
 420 rmlist="$rmlist loc"
 421
 422 : get list of predefined functions in a handy place
 423 echo " "
 424 if test -f /lib/libc.a; then
 425     echo "Your C library is in /lib/libc.a.  You're normal."
 426     libc=/lib/libc.a
 427 else
 428     if test -f /lib/clib -a -f /lib/libc; then
 429         echo "Your standard C library is in /lib/libc.  Must be Domain/OS."
 430         libc=/lib/libc
 431     elif test -f /lib/libsys_s.a; then
 432         echo "Your C library is in /lib/libsys_s.a.  Must be a NeXT."
 433         libc=/lib/libsys_s.a
 434     else
 435         ans=`loc libc.a blurfl/dyick $libpth`
 436         if test ! -f $ans; then
 437             ans=`loc clib blurfl/dyick $libpth`
 438         fi
 439         if test ! -f $ans; then
 440              ans=`loc libc blurfl/dyick $libpth`
 441         fi
 442         if test -f $ans; then
 443             echo "Your C library is in $ans, of all places."
 444             libc=$ans
 445         else
 446             if test -f "$libc"; then
 447                 echo "Your C library is in $libc, like you said before."
 448             else
 449                 cat <<EOM
 450
 451 I can't seem to find your C library.  I've looked in the following places:
 452
 453         $libpth
 454
 455 None of these seems to contain your C library.  What is the full name
 456 EOM
 457                 dflt=None
 458                 $echo $n "of your C library? $c"
 459                 rp='C library full name?'
 460                 . myread
 461                 libc="$ans"
 462             fi
 463         fi
 464     fi
 465 fi
 466 echo " "
 467 $echo $n "Extracting names from $libc for later perusal...$c"
 468 nm $libc 2>/dev/null | sed -n -e 's/^.* T _//p' -e 's/^.* T //p' > libc.list
 469 if $contains '^printf$' libc.list >/dev/null 2>&1; then
 470     echo "done"
 471 else
 472     nm $libc 2>/dev/null | sed -n -e 's/^.* D _//p' -e 's/^.* D //p' > libc.list
 473     if $contains '^printf$' libc.list >/dev/null 2>&1; then
 474         echo "done"
 475     else
 476         echo " "
 477         echo "nm didn't seem to work right."
 478         echo "Trying ar instead..."
 479         if ar t $libc | sed -e 's/\.o$//' > libc.list; then
 480             echo "Ok."
 481         else
 482             echo "That didn't work either.  Giving up."
 483             exit 1
 484         fi
 485     fi
 486 fi
 487 rmlist="$rmlist libc.list"
 488
 489 : make some quick guesses about what we are up against
 490 echo " "
 491 $echo $n "Hmm...  $c"
 492 if $contains SIGTSTP /usr/include/signal.h >/dev/null 2>&1 ; then
 493     echo "Looks kind of like a BSD system, but we'll see..."
 494     echo exit 0 >bsd
 495     echo exit 1 >usg
 496     echo exit 1 >v7
 497 elif $contains '^fcntl$' libc.list >/dev/null 2>&1 ; then
 498     echo "Looks kind of like a USG system, but we'll see..."
 499     echo exit 1 >bsd
 500     echo exit 0 >usg
 501     echo exit 1 >v7
 502 else
 503     echo "Looks kind of like a version 7 system, but we'll see..."
 504     echo exit 1 >bsd
 505     echo exit 1 >usg
 506     echo exit 0 >v7
 507 fi
 508 if $contains '^vmssystem$' libc.list >/dev/null 2>&1 ; then
 509     cat <<'EOI'
 510 There is, however, a strange, musty smell in the air that reminds me of
 511 something...hmm...yes...I've got it...there's a VMS nearby, or I'm a Blit.
 512 EOI
 513     echo "exit 0" >eunice
 514     eunicefix=unixtovms
 515     d_eunice="$define"
 516 : it so happens the Eunice I know will not run shell scripts in Unix format
 517 else
 518     echo " "
 519     echo "Congratulations.  You aren't running Eunice."
 520     eunicefix=':'
 521     d_eunice="$undef"
 522     echo "exit 1" >eunice
 523 fi
 524 if test -f /xenix; then
 525     echo "Actually, this looks more like a XENIX system..."
 526     echo "exit 0" >xenix
 527 else
 528     echo " "
 529     echo "It's not Xenix..."
 530     echo "exit 1" >xenix
 531 fi
 532 chmod +x xenix
 533 $eunicefix xenix
 534 if test -f /venix; then
 535     echo "Actually, this looks more like a VENIX system..."
 536     echo "exit 0" >venix
 537 else
 538     echo " "
 539     if xenix; then
 540         : null
 541     else
 542         echo "Nor is it Venix..."
 543     fi
 544     echo "exit 1" >venix
 545 fi
 546 chmod +x bsd usg v7 eunice venix
 547 $eunicefix bsd usg v7 eunice venix
 548 rmlist="$rmlist bsd usg v7 eunice venix xenix"
 549
 550 : see if sh knows # comments
 551 echo " "
 552 echo "Checking your sh to see if it knows about # comments..."
 553 if sh -c '#' >/dev/null 2>&1 ; then
 554     echo "Your sh handles # comments correctly."
 555     shsharp=true
 556     spitshell=cat
 557     echo " "
 558     echo "Okay, let's see if #! works on this system..."
 559     echo "#!/bin/echo hi" > try
 560     $eunicefix try
 561     chmod +x try
 562     try > today
 563     if $contains hi today >/dev/null 2>&1; then
 564         echo "It does."
 565         sharpbang='#!'
 566     else
 567         echo "#! /bin/echo hi" > try
 568         $eunicefix try
 569         chmod +x try
 570         try > today
 571         if test -s today; then
 572             echo "It does."
 573             sharpbang='#! '
 574         else
 575             echo "It doesn't."
 576             sharpbang=': use '
 577         fi
 578     fi
 579 else
 580     echo "Your sh doesn't grok # comments--I will strip them later on."
 581     shsharp=false
 582     echo "exec grep -v '^#'" >spitshell
 583     chmod +x spitshell
 584     $eunicefix spitshell
 585     spitshell=`pwd`/spitshell
 586     echo "I presume that if # doesn't work, #! won't work either!"
 587     sharpbang=': use '
 588 fi
 589
 590 : figure out how to guarantee sh startup
 591 echo " "
 592 echo "Checking out how to guarantee sh startup..."
 593 startsh=$sharpbang'/bin/sh'
 594 echo "Let's see if '$startsh' works..."
 595 cat >try <<EOSS
 596 $startsh
 597 set abc
 598 test "$?abc" != 1
 599 EOSS
 600
 601 chmod +x try
 602 $eunicefix try
 603 if try; then
 604     echo "Yup, it does."
 605 else
 606     echo "Nope.  You may have to fix up the shell scripts to make sure sh runs them."
 607 fi
 608 rm -f try today
 609
 610 #: see if sprintf is declared as int or pointer to char
 611 #echo " "
 612 #cat >.ucbsprf.c <<'EOF'
 613 #main() { char buf[10]; exit((unsigned long)sprintf(buf,"%s","foo") > 10L); }
 614 #EOF
 615 #if cc .ucbsprf.c -o .ucbsprf >/dev/null 2>&1 && .ucbsprf; then
 616 #    echo "Your sprintf() returns (int)."
 617 #    d_charsprf="$undef"
 618 #else
 619 #    echo "Your sprintf() returns (char*)."
 620 #    d_charsprf="$define"
 621 #fi
 622 #/bin/rm -f .ucbsprf.c .ucbsprf
 623
 624 : see if we can have long filenames
 625 echo " "
 626 rm -f 123456789abcde
 627 if (echo hi >123456789abcdef) 2>/dev/null; then
 628     : not version 8
 629     if test -f 123456789abcde; then
 630         echo 'You cannot have filenames longer than 14 characters.  Sigh.'
 631         d_flexfnam="$undef"
 632     else
 633         echo 'You can have filenames longer than 14 characters.'
 634         d_flexfnam="$define"
 635     fi
 636 else
 637     : version 8 probably
 638     echo "You can't have filenames longer than 14 chars.  V8 can't even think about them!"
 639     d_flexfnam="$undef"
 640 fi
 641 : index or strcpy
 642 echo " "
 643 case "$d_index" in
 644 n) dflt=n;;
 645 *) dflt=y;;
 646 esac
 647 if $contains '^index$' libc.list >/dev/null 2>&1 ; then
 648     if $contains '^strchr$' libc.list >/dev/null 2>&1 ; then
 649         echo "Your system has both index() and strchr().  Shall I use"
 650         rp="index() rather than strchr()? [$dflt]"
 651         $echo $n "$rp $c"
 652         . myread
 653         case "$ans" in
 654             n*) d_index="$define" ;;
 655             *)  d_index="$undef" ;;
 656         esac
 657     else
 658         d_index="$undef"
 659         echo "index() found."
 660     fi
 661 else
 662     if $contains '^strchr$' libc.list >/dev/null 2>&1 ; then
 663         d_index="$define"
 664         echo "strchr() found."
 665     else
 666         echo "No index() or strchr() found!"
 667         d_index="$undef"
 668     fi
 669 fi
 670
 671 : see if signal is declared as pointer to function returning int or void
 672 echo " "
 673 if $contains 'void.*signal' /usr/include/signal.h >/dev/null 2>&1 ||
 674 $contains 'void.*signal' /usr/include/sys/signal.h >/dev/null 2>&1 ; then
 675     echo "You have void (*signal())() instead of int."
 676     d_voidsig="$define"
 677 else
 678     echo "You have int (*signal())() instead of void."
 679     d_voidsig="$undef"
 680 fi
 681
 682 : check for directory library
 683 echo " "
 684 if test -f /usr/include/dirent.h; then
 685     echo "You have dirent.h."
 686     d_dirheader="#define DIRENT"
 687 elif test -f /usr/include/ndir.h; then
 688     echo "You have ndir.h."
 689     d_dirheader="#define USG"
 690 elif test -f /usr/include/sys/ndir.h; then
 691     echo "You have sys/ndir.h."
 692     d_dirheader="#define SYSNDIR
 693 #define USG"
 694 elif test -f /usr/include/sys/dir.h; then
 695     echo "You have sys/dir.h; I hope that's the BSD version."
 696     d_dirheader="#define SYSDIR"
 697 else
 698     echo "I can't find a directory library header file.
 699 That means you won't have numbered backups available."
 700     d_dirheader="#define NODIR"
 701 fi
 702
 703 : check for unistd.h
 704 echo " "
 705 if test -f /usr/include/unistd.h; then
 706     echo "You have unistd.h."
 707     d_unistd="$define"
 708 else
 709     echo "I don't see unistd.h, but that's OK."
 710     d_unistd="$undef"
 711 fi
 712
 713 : check for void type
 714 echo " "
 715 $cat <<EOM
 716 Checking to see how well your C compiler groks the void type...
 717
 718   Support flag bits are:
 719     1: basic void declarations.
 720     2: arrays of pointers to functions returning void.
 721     4: operations between pointers to and addresses of void functions.
 722
 723 EOM
 724 case "$voidflags" in
 725 '')
 726     $cat >try.c <<'EOCP'
 727 #if TRY & 1
 728 void main() {
 729 #else
 730 main() {
 731 #endif
 732         extern void *moo();
 733         void *(*goo)();
 734 #if TRY & 2
 735         void (*foo[10])();
 736 #endif
 737
 738 #if TRY & 4
 739         if(*goo == moo) {
 740                 exit(0);
 741         }
 742 #endif
 743         exit(0);
 744 }
 745 EOCP
 746     : Argh -- AIX 3.2 does not have cc -S!
 747     if cc -c -DTRY=7 try.c >.out 2>&1 ; then
 748         voidflags=7
 749         echo "It appears to support void fully."
 750         if $contains warning .out >/dev/null 2>&1; then
 751             echo "However, you might get some warnings that look like this:"
 752             $cat .out
 753         fi
 754     else
 755         echo "Hmm, you compiler has some difficulty with void.  Checking further..."
 756         if cc -c -DTRY=1 try.c >/dev/null 2>&1 ; then
 757             echo "It supports 1..."
 758             if cc -c -DTRY=3 try.c >/dev/null 2>&1 ; then
 759                 voidflags=3
 760                 echo "And it supports 2 but not 4."
 761             else
 762                 echo "It doesn't support 2..."
 763                 if cc -c -DTRY=3 try.c >/dev/null 2>&1 ; then
 764                     voidflags=5
 765                     echo "But it supports 4."
 766                 else
 767                     voidflags=1
 768                     echo "And it doesn't support 4."
 769                 fi
 770             fi
 771         else
 772             echo "There is no support at all for void."
 773             voidflags=0
 774         fi
 775     fi
 776 esac
 777 dflt="$voidflags";
 778 rp="Your void support flags add up to what? [$dflt]"
 779 $echo $n "$rp $c"
 780 . myread
 781 voidflags="$ans"
 782 $rm -f try.* .out
 783
 784 : see how we invoke the C preprocessor
 785 echo " "
 786 echo "Now, how can we feed standard input to your C preprocessor..."
 787 cat <<'EOT' >testcpp.c
 788 #define ABC abc
 789 #define XYZ xyz
 790 ABC.XYZ
 791 EOT
 792 echo 'Maybe "'$cpp'" will work...'
 793 $cpp <testcpp.c >testcpp.out 2>&1
 794 if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
 795     echo "Yup, it does."
 796     cppstdin="$cpp"
 797     cppminus='';
 798 else
 799     echo 'Nope, maybe "'$cpp' -" will work...'
 800     $cpp - <testcpp.c >testcpp.out 2>&1
 801     if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
 802         echo "Yup, it does."
 803         cppstdin="$cpp"
 804         cppminus='-';
 805     else
 806         echo 'No such luck...maybe "cc -E" will work...'
 807         cc -E <testcpp.c >testcpp.out 2>&1
 808         if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
 809             echo "It works!"
 810             cppstdin='cc -E'
 811             cppminus='';
 812         else
 813             echo 'Nixed again...maybe "cc -E -" will work...'
 814             cc -E - <testcpp.c >testcpp.out 2>&1
 815             if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
 816                 echo "Hooray, it works!  I was beginning to wonder."
 817                 cppstdin='cc -E'
 818                 cppminus='-';
 819             else
 820                 echo 'Nope...maybe "cc -P" will work...'
 821                 cc -P <testcpp.c >testcpp.out 2>&1
 822                 if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
 823                     echo "Yup, that does."
 824                     cppstdin='cc -P'
 825                     cppminus='';
 826                 else
 827                     echo 'Nope...maybe "cc -P -" will work...'
 828                     cc -P - <testcpp.c >testcpp.out 2>&1
 829                     if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
 830                         echo "Yup, that does."
 831                         cppstdin='cc -P'
 832                         cppminus='-';
 833                     else
 834                         echo 'Hmm...perhaps you already told me...'
 835                         case "$cppstdin" in
 836                         '') ;;
 837                         *) $cppstdin $cppminus <testcpp.c >testcpp.out 2>&1;;
 838                         esac
 839                         if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
 840                             echo "Hooray, you did!  I was beginning to wonder."
 841                         else
 842                             echo 'Uh-uh.  Time to get fancy...'
 843                             echo 'Trying (cat >/tmp/$$.c; cc -E /tmp/$$.c; rm /tmp/$$.c)'
 844                             cppstdin='(cat >/tmp/$$.c; cc -E /tmp/$$.c; rm /tmp/$$.c)'
 845                             cppminus='';
 846                             $cppstdin <testcpp.c >testcpp.out 2>&1
 847                             if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
 848                                 echo "Eureka!."
 849                             else
 850                                 dflt=blurfl
 851                                 $echo $n "No dice.  I can't find a C preprocessor.  Name one: $c"
 852                                 rp='Name a C preprocessor:'
 853                                 . myread
 854                                 cppstdin="$ans"
 855                                 $cppstdin <testcpp.c >testcpp.out 2>&1
 856                                 if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
 857                                     echo "OK, that will do."
 858                                 else
 859                                     echo "Sorry, I can't get that to work.  Go find one."
 860                                     exit 1
 861                                 fi
 862                             fi
 863                         fi
 864                     fi
 865                 fi
 866             fi
 867         fi
 868     fi
 869 fi
 870 rm -f testcpp.c testcpp.out
 871
 872 : get C preprocessor symbols handy
 873 echo " "
 874 : AIX 3.2 rejects tr '[ - ]' because the range endpoints are the same.
 875 echo $attrlist | $tr ' ' '\012' >Cppsym.know
 876 $cat <<EOSS >Cppsym
 877 $startsh
 878 case "\$1" in
 879 -l) list=true
 880     shift
 881     ;;
 882 esac
 883 unknown=''
 884 case "\$list\$#" in
 885 1|2)
 886     for sym do
 887         if $contains "^\$1$" Cppsym.true >/dev/null 2>&1; then
 888             exit 0
 889         elif $contains "^\$1$" Cppsym.know >/dev/null 2>&1; then
 890                 :
 891         else
 892             unknown="\$unknown \$sym"
 893         fi
 894     done
 895     set X \$unknown
 896     shift
 897     ;;
 898 esac
 899 case \$# in
 900 0) exit 1;;
 901 esac
 902 echo \$* | $tr ' ' '\012' | $sed -e 's/\(.*\)/\\
 903 #ifdef \1\\
 904 exit 0; _ _ _ _\1\\      \1\\
 905 #endif\\
 906 /' >/tmp/Cppsym\$\$
 907 echo exit 1 >>/tmp/Cppsym\$\$
 908 $cppstdin $cppminus </tmp/Cppsym\$\$ >/tmp/Cppsym2\$\$
 909 case "\$list" in
 910 true) awk 'NF > 5 {print substr(\$6,2,100)}' </tmp/Cppsym2\$\$ ;;
 911 *)
 912     sh /tmp/Cppsym2\$\$
 913     status=\$?
 914     ;;
 915 esac
 916 $rm -f /tmp/Cppsym\$\$ /tmp/Cppsym2\$\$
 917 exit \$status
 918 EOSS
 919 chmod +x Cppsym
 920 $eunicefix Cppsym
 921 echo "Your C preprocessor defines the following symbols:"
 922 Cppsym -l $attrlist >Cppsym.true
 923 cat Cppsym.true
 924 rmlist="$rmlist Cppsym Cppsym.know Cppsym.true"
 925
 926 : see how many register declarations we want to use
 927 case "$registers" in
 928 '')
 929     if Cppsym vax; then
 930         dflt=6
 931     elif Cppsym sun mc68000 mc68k m68k; then
 932         dflt=10
 933     elif Cppsym pyr; then
 934         dflt=14
 935     elif Cppsym ns32000 ns16000; then
 936         dflt=5
 937     elif Cppsym $smallmach; then
 938         dflt=3
 939     else
 940         : if you have any other numbers for me, send them in
 941         dflt=6
 942     fi
 943     ;;
 944 *)  dflt=$registers ;;
 945 esac
 946 cat <<EOM
 947
 948 Different C compilers on different machines pay attention to different
 949 numbers of register declarations.  About how many register declarations in
 950 EOM
 951 $echo $n "each routine does your C compiler pay attention to? (OK to guess) [$dflt] $c"
 952 rp="# register declarations used? [$dflt]"
 953 . myread
 954 registers=$ans
 955 reg1=''
 956 awk "BEGIN { for (i=1; i<=16; i++) printf \"reg%d=''\n\", i}" </dev/null >.foo
 957 . .foo
 958 awk "BEGIN { for (i=1; i<=$registers; i++) printf \"reg%d=register\n\", i}" \
 959         </dev/null >.foo
 960 . .foo
 961 rm -f .foo
 962
 963 : preserve RCS keywords in files with variable substitution, grrr
 964 Log='$Log'
 965 Header='$Header'
 966
 967 : set up shell script to do ~ expansion
 968 cat >filexp <<EOSS
 969 $startsh
 970 : expand filename
 971 case "\$1" in
 972  ~/*|~)
 973     echo \$1 | $sed "s|~|\${HOME-\$LOGDIR}|"
 974     ;;
 975  ~*)
 976     if $test -f /bin/csh; then
 977         /bin/csh -f -c "glob \$1"
 978         echo ""
 979     else
 980         name=\`$expr x\$1 : '..\([^/]*\)'\`
 981         dir=\`$sed -n -e "/^\${name}:/{s/^[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:\([^:]*\).*"'\$'"/\1/" -e p -e q -e '}' </etc/passwd\`
 982         if $test ! -d "\$dir"; then
 983             me=\`basename \$0\`
 984             echo "\$me: can't locate home directory for: \$name" >&2
 985             exit 1
 986         fi
 987         case "\$1" in
 988         */*)
 989             echo \$dir/\`$expr x\$1 : '..[^/]*/\(.*\)'\`
 990             ;;
 991         *)
 992             echo \$dir
 993             ;;
 994         esac
 995     fi
 996     ;;
 997 *)
 998     echo \$1
 999     ;;
1000 esac
1001 EOSS
1002 chmod +x filexp
1003 $eunicefix filexp
1004
1005 : determine where public executables go
1006 case "$bin" in
1007 '')
1008     dflt=`loc . /bin /usr/local/bin /usr/lbin /usr/local /usr/bin`
1009     ;;
1010 *)  dflt="$bin"
1011     ;;
1012 esac
1013 cont=true
1014 while $test "$cont" ; do
1015     echo " "
1016     rp="Where do you want to put the public executables? [$dflt]"
1017     $echo $n "$rp $c"
1018     . myread
1019     bin="$ans"
1020     bin=`filexp $bin`
1021     if test -d $bin; then
1022         cont=''
1023     else
1024         dflt=n
1025         rp="Directory $bin doesn't exist.  Use that name anyway? [$dflt]"
1026         $echo $n "$rp $c"
1027         . myread
1028         dflt=''
1029         case "$ans" in
1030         y*) cont='';;
1031         esac
1032     fi
1033 done
1034
1035 : determine where manual pages go
1036 case "$mansrc" in
1037 '')
1038     dflt=`loc . /usr/man/man1 /usr/local/man/man1 /usr/man/mann /usr/man/local/man1 /usr/man/u_man/man1`
1039     ;;
1040 *)  dflt="$mansrc"
1041     ;;
1042 esac
1043 cont=true
1044 while $test "$cont" ; do
1045     echo " "
1046     rp="Where do the manual pages (source) go? [$dflt]"
1047     $echo $n "$rp $c"
1048     . myread
1049     mansrc=`filexp "$ans"`
1050     if test -d $mansrc; then
1051         cont=''
1052     else
1053         dflt=n
1054         rp="Directory $mansrc doesn't exist.  Use that name anyway? [$dflt]"
1055         $echo $n "$rp $c"
1056         . myread
1057         dflt=''
1058         case "$ans" in
1059         y*) cont='';;
1060         esac
1061     fi
1062 done
1063 case "$mansrc" in
1064 *l)
1065     manext=l
1066     ;;
1067 *n)
1068     manext=n
1069     ;;
1070 *C)
1071     manext=C
1072     ;;
1073 *)
1074     manext=1
1075     ;;
1076 esac
1077
1078 : see what memory models we can support
1079 case "$models" in
1080 '')
1081     if Cppsym pdp11; then
1082         dflt='unsplit split'
1083     else
1084         ans=`loc . X /lib/small /lib/large /usr/lib/small /usr/lib/large /lib/medium /usr/lib/medium /lib/huge`
1085         case "$ans" in
1086         X) dflt='none';;
1087         *)  if $test -d /lib/small || $test -d /usr/lib/small; then
1088                 dflt='small'
1089             else
1090                 dflt=''
1091             fi
1092             if $test -d /lib/medium || $test -d /usr/lib/medium; then
1093                 dflt="$dflt medium"
1094             fi
1095             if $test -d /lib/large || $test -d /usr/lib/large; then
1096                 dflt="$dflt large"
1097             fi
1098             if $test -d /lib/huge || $test -d /usr/lib/huge; then
1099                 dflt="$dflt huge"
1100             fi
1101         esac
1102     fi
1103     ;;
1104 *)  dflt="$models" ;;
1105 esac
1106 $cat <<EOM
1107
1108 Some systems have different model sizes.  On most systems they are called
1109 small, medium, large, and huge.  On the PDP11 they are called unsplit and
1110 split.  If your system doesn't support different memory models, say "none".
1111 If you wish to force everything to one memory model, say "none" here and
1112 put the appropriate flags later when it asks you for other cc and ld flags.
1113 Venix systems may wish to put "none" and let the compiler figure things out.
1114 (In the following question multiple model names should be space separated.)
1115
1116 EOM
1117 rp="Which models are supported? [$dflt]"
1118 $echo $n "$rp $c"
1119 . myread
1120 models="$ans"
1121
1122 case "$models" in
1123 none)
1124     small=''
1125     medium=''
1126     large=''
1127     huge=''
1128     unsplit=''
1129     split=''
1130     ;;
1131 *split)
1132     case "$split" in
1133     '')
1134         if $contains '-i' $mansrc/ld.1 >/dev/null 2>&1 || \
1135            $contains '-i' $mansrc/cc.1 >/dev/null 2>&1; then
1136             dflt='-i'
1137         else
1138             dflt='none'
1139         fi
1140         ;;
1141     *) dflt="$split";;
1142     esac
1143     rp="What flag indicates separate I and D space? [$dflt]"
1144     $echo $n "$rp $c"
1145     . myread
1146     case "$ans" in
1147     none) ans='';;
1148     esac
1149     split="$ans"
1150     unsplit=''
1151     ;;
1152 *large*|*small*|*medium*|*huge*)
1153     case "$model" in
1154     *large*)
1155         case "$large" in
1156         '') dflt='-Ml';;
1157         *) dflt="$large";;
1158         esac
1159         rp="What flag indicates large model? [$dflt]"
1160         $echo $n "$rp $c"
1161         . myread
1162         case "$ans" in
1163         none) ans='';
1164         esac
1165         large="$ans"
1166         ;;
1167     *) large='';;
1168     esac
1169     case "$model" in
1170     *huge*)
1171         case "$huge" in
1172         '') dflt='-Mh';;
1173         *) dflt="$huge";;
1174         esac
1175         rp="What flag indicates huge model? [$dflt]"
1176         $echo $n "$rp $c"
1177         . myread
1178         case "$ans" in
1179         none) ans='';
1180         esac
1181         huge="$ans"
1182         ;;
1183     *) huge="$large";;
1184     esac
1185     case "$model" in
1186     *medium*)
1187         case "$medium" in
1188         '') dflt='-Mm';;
1189         *) dflt="$medium";;
1190         esac
1191         rp="What flag indicates medium model? [$dflt]"
1192         $echo $n "$rp $c"
1193         . myread
1194         case "$ans" in
1195         none) ans='';
1196         esac
1197         medium="$ans"
1198         ;;
1199     *) medium="$large";;
1200     esac
1201     case "$model" in
1202     *small*)
1203         case "$small" in
1204         '') dflt='none';;
1205         *) dflt="$small";;
1206         esac
1207         rp="What flag indicates small model? [$dflt]"
1208         $echo $n "$rp $c"
1209         . myread
1210         case "$ans" in
1211         none) ans='';
1212         esac
1213         small="$ans"
1214         ;;
1215     *) small='';;
1216     esac
1217     ;;
1218 *)
1219     echo "Unrecognized memory models--you may have to edit Makefile.SH"
1220     ;;
1221 esac
1222
1223 case "$ccflags" in
1224 '') dflt='none';;
1225 *) dflt="$ccflags";;
1226 esac
1227 echo " "
1228 rp="Any additional cc flags? [$dflt]"
1229 $echo $n "$rp $c"
1230 . myread
1231 case "$ans" in
1232 none) ans='';
1233 esac
1234 ccflags="$ans"
1235
1236 case "$ldflags" in
1237 '') if venix; then
1238         dflt='-i -z'
1239     elif xenix; then
1240         if test -f /usr/include/dirent.h; then
1241             dflt='-ldir -lx'
1242         else
1243             dflt='-lx'
1244         fi
1245     else
1246         dflt='none'
1247     fi
1248     ;;
1249 *) dflt="$ldflags";;
1250 esac
1251 echo " "
1252 rp="Any additional ld flags? [$dflt]"
1253 $echo $n "$rp $c"
1254 . myread
1255 case "$ans" in
1256 none) ans='';
1257 esac
1258 ldflags="$ans"
1259
1260 : see if we need a special compiler
1261 echo " "
1262 if usg; then
1263     case "$cc" in
1264     '')
1265         case "$Mcc" in
1266         /*) dflt='Mcc'
1267             ;;
1268         *)
1269             case "$large" in
1270             -M*)
1271                 dflt='cc'
1272                 ;;
1273             *)
1274                 if $contains '\-M' $mansrc/cc.1 >/dev/null 2>&1 ; then
1275                     dflt='cc -M'
1276                 else
1277                     dflt='cc'
1278                 fi
1279                 ;;
1280             esac
1281             ;;
1282         esac
1283         ;;
1284     *)  dflt="$cc";;
1285     esac
1286     $cat <<'EOM'
1287
1288 On some systems the default C compiler will not resolve multiple global
1289 references that happen to have the same name.  On some such systems the
1290 "Mcc" command may be used to force these to be resolved.  On other systems
1291 a "cc -M" command is required.  (Note that the -M flag on other systems
1292 indicates a memory model to use!)  What command will force resolution on
1293 EOM
1294     $echo $n "this system? [$dflt] $c"
1295     rp="Command to resolve multiple refs? [$dflt]"
1296     . myread
1297     cc="$ans"
1298 else
1299     echo "Not a USG system--assuming cc can resolve multiple definitions."
1300     cc=cc
1301 fi
1302
1303 echo " "
1304 echo "End of configuration questions."
1305 echo " "
1306
1307 : create config.sh file
1308 echo " "
1309 if test -d ../UU; then
1310     cd ..
1311 fi
1312 echo "Creating config.sh..."
1313 $spitshell <<EOT >config.sh
1314 $startsh
1315 # config.sh
1316 # This file was produced by running the Configure script.
1317
1318 d_eunice='$d_eunice'
1319 eunicefix='$eunicefix'
1320 define='$define'
1321 loclist='$loclist'
1322 expr='$expr'
1323 sed='$sed'
1324 echo='$echo'
1325 cat='$cat'
1326 rm='$rm'
1327 mv='$mv'
1328 cp='$cp'
1329 tail='$tail'
1330 tr='$tr'
1331 mkdir='$mkdir'
1332 sort='$sort'
1333 uniq='$uniq'
1334 grep='$grep'
1335 trylist='$trylist'
1336 test='$test'
1337 inews='$inews'
1338 egrep='$egrep'
1339 more='$more'
1340 pg='$pg'
1341 Mcc='$Mcc'
1342 vi='$vi'
1343 mailx='$mailx'
1344 mail='$mail'
1345 cpp='$cpp'
1346 Log='$Log'
1347 Header='$Header'
1348 bin='$bin'
1349 cc='$cc'
1350 contains='$contains'
1351 cppstdin='$cppstdin'
1352 cppminus='$cppminus'
1353 d_charsprf='$d_charsprf'
1354 d_flexfnam='$d_flexfnam'
1355 d_index='$d_index'
1356 d_voidsig='$d_voidsig'
1357 d_dirheader='$d_dirheader'
1358 d_unistd='$d_unistd'
1359 libc='$libc'
1360 mansrc='$mansrc'
1361 manext='$manext'
1362 models='$models'
1363 split='$split'
1364 small='$small'
1365 medium='$medium'
1366 large='$large'
1367 huge='$huge'
1368 ccflags='$ccflags'
1369 ldflags='$ldflags'
1370 n='$n'
1371 c='$c'
1372 package='$package'
1373 registers='$registers'
1374 reg1='$reg1'
1375 reg2='$reg2'
1376 reg3='$reg3'
1377 reg4='$reg4'
1378 reg5='$reg5'
1379 reg6='$reg6'
1380 reg7='$reg7'
1381 reg8='$reg8'
1382 reg9='$reg9'
1383 reg10='$reg10'
1384 reg11='$reg11'
1385 reg12='$reg12'
1386 reg13='$reg13'
1387 reg14='$reg14'
1388 reg15='$reg15'
1389 reg16='$reg16'
1390 spitshell='$spitshell'
1391 shsharp='$shsharp'
1392 sharpbang='$sharpbang'
1393 startsh='$startsh'
1394 voidflags='$voidflags'
1395 defvoidused='$defvoidused'
1396 CONFIG=true
1397 EOT
1398
1399 CONFIG=true
1400
1401 echo " "
1402 dflt=''
1403 fastread=''
1404 echo "If you didn't make any mistakes, then just type a carriage return here."
1405 rp="If you need to edit config.sh, do it as a shell escape here:"
1406 $echo $n "$rp $c"
1407 . UU/myread
1408 case "$ans" in
1409 '') ;;
1410 *) : in case they cannot read
1411     eval $ans;;
1412 esac
1413 . ./config.sh
1414
1415 echo " "
1416 echo "Doing variable substitutions on .SH files..."
1417 set x `awk '{print $1}' <MANIFEST | $grep '\.SH'`
1418 shift
1419 case $# in
1420 0) set x *.SH; shift;;
1421 esac
1422 if test ! -f $1; then
1423     shift
1424 fi
1425 for file in $*; do
1426     case "$file" in
1427     */*)
1428         dir=`$expr X$file : 'X\(.*\)/'`
1429         file=`$expr X$file : 'X.*/\(.*\)'`
1430         (cd $dir && . $file)
1431         ;;
1432     *)
1433         . $file
1434         ;;
1435     esac
1436 done
1437 if test -f config.h.SH; then
1438     if test ! -f config.h; then
1439         : oops, they left it out of MANIFEST, probably, so do it anyway.
1440         . config.h.SH
1441     fi
1442 fi
1443
1444 if $contains '^depend:' Makefile >/dev/null 2>&1; then
1445     dflt=n
1446     $cat <<EOM
1447
1448 Now you need to generate make dependencies by running "make depend".
1449 You might prefer to run it in background: "make depend > makedepend.out &"
1450 It can take a while, so you might not want to run it right now.
1451
1452 EOM
1453     rp="Run make depend now? [$dflt]"
1454     $echo $n "$rp $c"
1455     . UU/myread
1456     case "$ans" in
1457     y*) make depend
1458         echo "Now you must run a make."
1459         ;;
1460     *)  echo "You must run 'make depend' then 'make'."
1461         ;;
1462     esac
1463 elif test -f Makefile; then
1464     echo " "
1465     echo "Now you must run a make."
1466 else
1467     echo "Done."
1468 fi
1469
1470 $rm -f kit*isdone
1471 : the following is currently useless
1472 cd UU && $rm -f $rmlist
1473 : since this removes it all anyway
1474 cd .. && $rm -rf UU
1475 : end of Configure