configure

   1 #!/bin/sh
   2
   3 # Configuration script
   4 #   Copyright (C) 1988, 1990, 1991 Free Software Foundation, Inc.
   5
   6 #This file is part of GNU.
   7
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  21
  22 # $Id$
  23
  24 #
  25 # Shell script to create proper links to machine-dependent files in
  26 # preparation for compilation.
  27 #
  28 # If configure succeeds, it leaves its status in config.status.
  29 # If configure fails after disturbing the status quo,
  30 #       config.status is removed.
  31 #
  32
  33 set -e
  34
  35 remove=rm
  36 hard_link=ln
  37 symbolic_link='ln -s'
  38
  39 #for Test
  40 #remove="echo rm"
  41 #hard_link="echo ln"
  42 #symbolic_link="echo ln -s"
  43
  44 progname=$0
  45
  46 # clear some things potentially inherited from environment.
  47
  48 Makefile=Makefile
  49 Makefile_in=Makefile.in
  50 ansi=
  51 arguments=$*
  52 commontargets=
  53 configdirs=
  54 defaulttargets=
  55 destdir=
  56 fatal=
  57 hostsubdir=
  58 norecursion=
  59 recurring=
  60 removing=
  61 srcdir=
  62 srctrigger=
  63 target=
  64 targets=
  65 targetsubdir=
  66 verbose=
  67
  68 #if [ "$0" != "./configure" ] ; then
  69 #       exec ./configure $*
  70 #fi
  71
  72 #if [ ! -f ./config.sub ] ; then
  73 #       echo '***' Can not find config.sub.
  74 #       exit 1
  75 #fi
  76
  77 for arg in $*;
  78 do
  79         case ${arg} in
  80         -ansi | +a*)
  81                 ansi=true
  82                 clib=clib
  83                 ;;
  84         -destdir=* | +destdir=* | +destdi=* | +destd=* | +dest=* | +des=* | +de=* | +d=*)
  85                 destdir=`echo ${arg} | sed 's/[+-]d[a-z]*=//'`
  86                 ;;
  87         -languages=* | +languages=* | +language=* | +languag=* \
  88                 | +langua=* | +langu=* | +lang=* | +lan=* | +la=* \
  89                 | +l=*)
  90                 languages="${languages} `echo ${arg} | sed 's/[+-]l[a-z]*=//'`"
  91                 ;;
  92         -gas | +g*)
  93                 gas=yes
  94                 ;;
  95         -help | +h*)
  96                 fatal=true
  97                 ;;
  98         -nfp | +nf*)
  99                 nfp=yes
 100                 ;;
 101         -norecursion | +no*)
 102                 norecursion=true
 103                 ;;
 104         -recurring | +recurring | +recurrin | +recurri | +recurr | +recur | +recu | +rec | +re)
 105                 recurring=true
 106                 ;;
 107         -rm | +rm)
 108                 removing=${arg}
 109                 ;;
 110         -site=* | +site=* | +sit=* | +si=*)
 111                 site=`echo ${arg} | sed 's/[+-]s[a-z]*=//'`
 112                 ;;
 113 #       -srcdir=* | +srcdir=* | +srcdi=* | +srcd=* | +src=* | +sr=*)
 114 #               srcdir=`echo ${arg} | sed 's/[+-]s[a-z]*=//'`
 115 #               ;;
 116         -subdirs | +su*)
 117                 subdirs=${arg}
 118                 ;;
 119         -target=* | +target=* | +targe=* | +targ=* | +tar=* | +ta=*)
 120                 if [ -n "${targets}" ] ; then
 121                         subdirs="+subdirs"
 122                 fi
 123
 124                 newtargets="${targets} `echo ${arg} | sed 's/[+-]t[a-z]*=//'`"
 125                 targets="${newtargets}"
 126                 ;;
 127         -v | -verbose | +v*)
 128                 verbose=${arg}
 129                 ;;
 130         -* | +*)
 131                 (echo ;
 132                 echo "Unrecognized option: \"${arg}\"". ;
 133                 echo) 1>&2
 134                 fatal=true
 135                 ;;
 136         *)
 137                 if [ -n "${hosts}" ] ; then
 138                         subdirs="+subdirs"
 139                 fi
 140
 141                 newhosts="${hosts} ${arg}"
 142                 hosts=${newhosts}
 143                 ;;
 144         esac
 145 done
 146
 147 if [ -n "${verbose}" ] ; then
 148         echo `pwd`/configure $*
 149 fi
 150
 151 # process host and target only if not removing.
 152 if [ -z "${removing}" -a -z "${fatal}" ] ; then
 153         # Complain if an arg is missing
 154         if [ -z "${hosts}" ] ; then
 155                 (echo ;
 156                 echo "configure: No HOST specified." ;
 157                 echo) 1>&2
 158                 fatal=true
 159         fi
 160 fi
 161
 162 if [ -n "${fatal}" -o "${hosts}" = "help" ] ; then
 163         (echo "Usage: configure HOST" ;
 164         echo ;
 165         echo "Options: [defaults in brackets]" ;
 166         echo " +ansi            configure w/ANSI library. [no ansi lib]" ;
 167         echo " +destdir=MYDIR   configure for installation into MYDIR. [/usr/local]" ;
 168         echo " +subdirs         configure in subdirectories.  [in source directories]" ;
 169         echo " +lang=LANG       configure to build LANG. [gcc]" ;
 170         echo " +help            print this message. [normal config]" ;
 171         echo " +gas             configure the compilers for use with gas. [native as]" ;
 172         echo " +nfp             configure the compilers default to soft floating point. [hard float]" ;
 173         echo " +norecursion     configure this directory only. [recurse]" ;
 174         echo " +rm              remove this configuration. [build a configuration]" ;
 175         echo " +target=TARGET   configure for TARGET.  [TARGET = HOST]" ;
 176         echo ;
 177         echo "Where HOST and TARGET are something like \"vax\", \"sun3\", \"encore\", etc." ;
 178         echo "Asking for more than one \"+target\" implies \"+subdirs\".  Any other" ;
 179         echo "options given will apply to all targets.") 1>&2
 180
 181         if [ -r config.status ] ; then
 182                 cat config.status
 183         fi
 184
 185         exit 1
 186 fi
 187
 188 ### break up configure.in.
 189 if [ -r configure.in ] ; then
 190         if [ -z "`grep '^# per\-host:' configure.in`" ] ; then
 191                 echo '***' `pwd`/configure.in has no "per-host:" line. 1>&2
 192                 exit 1
 193         fi
 194
 195         if [ -z "`grep '^# per\-target:' configure.in`" ] ; then
 196                 echo '***' `pwd`/configure.in has no "per-target:" line. 1>&2
 197                 exit 1
 198         fi
 199
 200         # split configure.in into common, per-host, per-target,
 201         # and post-target parts.  Post-target is optional.
 202         sed -e '/^# per\-host:/,$d' configure.in > configure.com
 203         sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' configure.in > configure.hst
 204         if grep -s '^# post-target:' configure.in ; then
 205           sed -e '1,/^# per\-target:/d' -e '/^# post\-target:/,$d' configure.in > configure.tgt
 206           sed -e '1,/^# post\-target:/d' configure.in > configure.pos
 207         else
 208           sed -e '1,/^# per\-target:/d' configure.in > configure.tgt
 209           echo >configure.pos
 210         fi
 211
 212 else
 213         echo '***' No configure.in in `pwd`
 214         exit 1
 215 fi
 216
 217 ### do common part of configure.in
 218
 219 . ./configure.com
 220
 221 # some sanity checks on configure.in
 222 if [ -z "${srctrigger}" ] ; then
 223         echo '***' srctrigger not set in `pwd`/configure.in.
 224         exit 1
 225 fi
 226
 227 for host in ${hosts} ; do
 228         # Default other arg
 229         if [ -z "${targets}" -o -n "${defaulttargets}" ] ; then
 230                 targets=${host}
 231                 defaulttargets=true
 232         fi
 233
 234         host_alias=${host}
 235
 236         result=`/bin/sh ./config.sub ${host}`
 237         host_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 238         host_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 239         host_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 240         host=${host_cpu}-${host_vendor}-${host_os}
 241         host_makefile_frag=config/hmake-${host}
 242
 243         . ./configure.hst
 244
 245         for target in ${targets} ; do
 246
 247                 target_alias=${target}
 248                 result=`/bin/sh ./config.sub ${target}`
 249                 target_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 250                 target_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 251                 target_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 252                 target=${target_cpu}-${target_vendor}-${target_os}
 253                 target_makefile_frag=config/tmake-${target}
 254
 255                 . ./configure.tgt
 256
 257                 # Temporarily, we support only direct subdir builds.
 258                 hostsubdir=H-${host_alias}
 259                 targetsubdir=T-${target_alias}
 260
 261                 if [ -n "${removing}" ] ; then
 262                         if [ -n "${subdirs}" ] ; then
 263                                 if [ -d "${hostsubdir}" ] ; then
 264                                         rm -rf ${hostsubdir}/${targetsubdir}
 265
 266                                         if [ -z "`(ls ${hostsubdir}) 2>&1 | grep T- | grep -v T-independent`" ] ; then
 267                                                 rm -rf ${hostsubdir}
 268                                         fi
 269                                 else
 270                                         echo Warning: no `pwd`/${hostsubdir} to remove.
 271                                 fi
 272                         else
 273                                 rm -f ${Makefile} config.status ${links}
 274                         fi
 275                 else
 276                         if [ -n "${subdirs}" ] ; then
 277                                 # check for existing status before allowing forced subdirs.
 278                                 if [ -f ${Makefile} ] ; then
 279                                         echo '***' "${Makefile} already exists in source directory.  `pwd` not configured." 1>&2
 280                                         exit 1
 281                                 fi
 282
 283                                 if [ ! -d ${hostsubdir} ] ; then mkdir ${hostsubdir} ; fi
 284                                 cd ${hostsubdir}
 285
 286                                 if [ ! -d ${targetsubdir} ] ; then
 287                                         if [ -z "${commontargets}" ] ; then
 288                                                 mkdir ${targetsubdir}
 289                                         else
 290                                                 if [ ! -d T-independent ] ; then
 291                                                         mkdir T-independent
 292                                                 fi
 293
 294                                                 ${symbolic_link} T-independent ${targetsubdir}
 295                                         fi # if target independent
 296                                 fi # if no target dir yet
 297
 298                                 cd ${targetsubdir}
 299
 300                                 srcdir=../..
 301                         else
 302                                 # if not subdir builds, then make sure none exist.
 303                                 if [ -n "`(ls .) 2>&1 | (grep H- ; true)`" ] ; then
 304                                         echo '***' "Configured subdirs exist.  `pwd` not configured." 1>&2
 305                                         exit 1
 306                                 else
 307                                         true
 308                                 fi
 309                         fi
 310
 311                         # Find the source files, if location was not specified.
 312                         if [ -z "${srcdir}" ] ; then
 313                                 srcdirdefaulted=1
 314                                 srcdir=.
 315                                 if [ -n "${srctrigger}" -a ! -r ${srctrigger} ] ; then
 316                                         srcdir=..
 317                                 fi
 318                         fi
 319
 320                         if [ -n "${srctrigger}" -a ! -r ${srcdir}/${srctrigger} ] ; then
 321                                 if [ -z "${srcdirdefaulted}" ] ; then
 322                                         echo '***' "${progname}: Can't find ${srcname} sources in `pwd`/${srcdir}" 1>&2
 323                                 else
 324                                         echo '***' "${progname}: Can't find ${srcname} sources in `pwd`/. or `pwd`/.." 1>&2
 325                                 fi
 326
 327                                 echo '***' \(At least ${srctrigger} is missing.\) 1>&2
 328                                 exit 1
 329                         fi
 330
 331                         # Set up the list of links to be made.
 332                         # ${links} is the list of link names, and ${files} is the list of names to link to.
 333
 334                         # Make the links.
 335                         while [ -n "${files}" ] ; do
 336                                 # set file to car of files, files to cdr of files
 337                                 set ${files}; file=$1; shift; files=$*
 338                                 set ${links}; link=$1; shift; links=$*
 339
 340                                 if [ ! -r ${srcdir}/${file} ] ; then
 341                                         echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
 342                                         echo '***' "since the file \"${file}\" does not exist." 1>&2
 343                                         exit 1
 344                                 fi
 345
 346                                 ${remove} -f ${link}
 347                                 rm -f config.status
 348                                 # Make a symlink if possible, otherwise try a hard link
 349                                 ${symbolic_link} ${srcdir}/${file} ${link} 2>/dev/null || ${hard_link} ${srcdir}/${file} ${link}
 350
 351                                 if [ ! -r ${link} ] ; then
 352                                         echo '***' "${progname}: unable to link \"${link}\" to \"${srcdir}/${file}\"." 1>&2
 353                                         exit 1
 354                                 fi
 355
 356                                 if [ -n "${verbose}" ] ; then
 357                                         echo "Linked \"${link}\" to \"${srcdir}/${file}\"."
 358                                 fi
 359                         done
 360
 361                         # Create a .gdbinit file which runs the one in srcdir
 362                         # and tells GDB to look there for source files.
 363
 364                         case ${srcdir} in
 365                         .)
 366                                 ;;
 367                         *)
 368                                 echo "dir ." > .gdbinit
 369                                 echo "dir ${srcdir}" >> .gdbinit
 370                                 echo "source ${srcdir}/.gdbinit" >> .gdbinit
 371                                 ;;
 372                         esac
 373
 374                         # Install a makefile, and make it set VPATH
 375                         # if necessary so that the sources are found.
 376                         # Also change its value of srcdir.
 377
 378                 # FIXME-someday: This business of always writing to .tem and mv back
 379                 # is so that I don't screw things up while developing.  Once this
 380                 # template is stable, these should be optimized. xoxorich.
 381
 382                         # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
 383                         if [ "${host}" != "${target}" ] ; then
 384                                 echo "CROSS=-DCROSS_COMPILE" > ${Makefile}
 385                                 echo "ALL=start.encap" >> ${Makefile}
 386                         else
 387                                 echo "ALL=all.internal" > ${Makefile}
 388                         fi
 389
 390                         # set target, host, VPATH
 391                         echo "host_alias = ${host_alias}" >> ${Makefile}
 392                         echo "host_cpu = ${host_cpu}" >> ${Makefile}
 393                         echo "host_vendor = ${host_vendor}" >> ${Makefile}
 394                         echo "host_os = ${host_os}" >> ${Makefile}
 395
 396                         echo "target_alias = ${target_alias}" >> ${Makefile}
 397                         echo "target_cpu = ${target_cpu}" >> ${Makefile}
 398                         echo "target_vendor = ${target_vendor}" >> ${Makefile}
 399                         echo "target_os = ${target_os}" >> ${Makefile}
 400
 401                         if [ -n "${subdirs}" ] ; then
 402                                 echo "subdir = /${hostsubdir}/${targetsubdir}" >> ${Makefile}
 403                         else
 404                                 echo "subdir =" >> ${Makefile}
 405                         fi
 406
 407                 #       echo "workdir = `pwd`" >> ${Makefile}
 408                         echo "VPATH = ${srcdir}" >> ${Makefile}
 409
 410                         # add "Makefile.in" (or whatever it's called)
 411                         cat ${srcdir}/${Makefile_in} >> ${Makefile}
 412
 413                         # Conditionalize the makefile for this host.
 414                         if [ -f ${srcdir}/${host_makefile_frag} ] ; then
 415                                 (echo "host_makefile_frag = ${srcdir}/${host_makefile_frag}" ;
 416                                         sed -e "/^####/  r ${srcdir}/${host_makefile_frag}" ${Makefile}) > Makefile.tem
 417                                 mv Makefile.tem ${Makefile}
 418                         fi
 419
 420                         # Conditionalize the makefile for this target.
 421                         if [ -f ${srcdir}/${target_makefile_frag} ] ; then
 422                                 (echo "target_makefile_frag = ${srcdir}/${target_makefile_frag}" ;
 423                                         sed -e "/^####/  r ${srcdir}/${target_makefile_frag}" ${Makefile}) > Makefile.tem
 424                                 mv Makefile.tem ${Makefile}
 425                         fi
 426
 427                         # Conditionalize the makefile for this site.
 428                         if [ -n "${site}" ] ; then
 429                                 site_makefile_frag=smake-${site}
 430
 431                                 if [ -f ${srcdir}/${site_makefile_frag} ] ; then
 432                                         (echo "site_makefile_frag = ${srcdir}/${site_makefile_frag}" ;
 433                                                 sed -e "/^####/  r ${srcdir}/${target_makefile_frag}" ${Makefile}) > Makefile.tem
 434                                         mv Makefile.tem ${Makefile}
 435                                 fi
 436                         fi
 437
 438                         # set srcdir
 439                         sed "s@^srcdir = \.@srcdir = ${srcdir}@" ${Makefile} > Makefile.tem
 440                         mv Makefile.tem ${Makefile}
 441
 442                         # set destdir
 443                         if [ -n "${destdir}" ] ; then
 444                                 sed "s:^destdir =.*$:destdir = ${destdir}:" ${Makefile} > Makefile.tem
 445                                 mv Makefile.tem ${Makefile}
 446                         fi
 447
 448                         # reset SUBDIRS
 449                         sed "s:^SUBDIRS =.*$:SUBDIRS = ${configdirs}:" ${Makefile} > Makefile.tem
 450                         mv Makefile.tem ${Makefile}
 451
 452                         # reset NONSUBDIRS
 453                         sed "s:^NONSUBDIRS =.*$:NONSUBDIRS = ${noconfigdirs}:" ${Makefile} > Makefile.tem
 454                         mv Makefile.tem ${Makefile}
 455
 456                         # remove any form feeds.
 457                         sed -e "s/\f//" ${Makefile} > Makefile.tem
 458                         mv Makefile.tem ${Makefile}
 459
 460                         using=
 461                         if [ -f ${srcdir}/${host_makefile_frag} ] ; then
 462                                 using=" using \"${host_makefile_frag}\""
 463                         fi
 464
 465                         if [ -f ${srcdir}/${target_makefile_frag} ] ; then
 466                                 if [ -z "${using}" ] ; then
 467                                         andusing=" using \"${target_makefile_frag}\""
 468                                 else
 469                                         andusing="${using} and \"${target_makefile_frag}\""
 470                                 fi
 471                         else
 472                                 andusing=${using}
 473                         fi
 474
 475                         if [ -f ${srcdir}/${site_makefile_frag} ] ; then
 476                                 if [ -z "${andusing}" ] ; then
 477                                         andandusing=" using \"${site_makefile_frag}\""
 478                                 else
 479                                         andandusing="${andusing} and \"${site_makefile_frag}\""
 480                                 fi
 481                         else
 482                                 andandusing=${using}
 483                         fi
 484
 485                         if [ -n "${verbose}" -o -z "${recurring}" ] ; then
 486                                 echo "Created \"${Makefile}\"" in `pwd`${andandusing}.
 487                         fi
 488
 489                         if [ -f ./configure.pos ] ; then
 490                                 . ./configure.pos
 491                         fi
 492
 493                         # describe the chosen configuration in config.status.
 494                         # Make that file a shellscript which will reestablish
 495                         # the same configuration.  Used in Makefiles to rebuild
 496                         # Makefiles.
 497
 498                         echo "#!/bin/sh
 499 # ${srcname} was configured as follows:
 500 ${srcdir}/configure" ${arguments} `if [ -z "${norecursion}" ] ; then echo +norecursion ; else true ; fi` > config.status
 501                         chmod a+x config.status
 502
 503                         originaldir=`pwd`
 504                         cd ${srcdir}
 505                 fi
 506
 507                 # If there are subdirectories, then recurse.
 508                 if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then
 509                         for configdir in ${configdirs} ; do
 510                                 if [ -n "${verbose}" ] ; then
 511                                         echo Configuring ${configdir}...
 512                                 fi
 513
 514                                 if [ -d ${configdir} ] ; then
 515                                         (cd ${configdir} ;
 516                                                 configure +recurring ${host_alias} +target=${target_alias} \
 517                                                         ${verbose} ${subdirs} ${removing} +destdir=${destdir}) \
 518                                                 | sed 's/^/     /'
 519                                 else
 520                                         if [ -n "${verbose}" ] ; then
 521                                                 echo Warning: directory \"${configdir}\" is missing.
 522                                         fi
 523                                 fi
 524                         done
 525                 fi
 526         done # for each target
 527
 528         # Now build a Makefile for this host.
 529         if [ -n "${subdirs}" -a ! -n "${removing}" ] ; then
 530                 cd ${hostsubdir}
 531                 cat > GNUmakefile << E!O!F
 532 # Makefile generated by configure for host ${host_alias}.
 533
 534 ALL := $(shell ls -d T-*)
 535
 536 %:
 537         $(foreach subdir,$(ALL),$(MAKE) -C $(subdir) \$@ &&) true
 538
 539 all:
 540 E!O!F
 541                 cd ..
 542         fi
 543 done # for each host
 544
 545 ### clean up.
 546
 547 rm -f configure.com configure.tgt configure.hst configure.pos
 548
 549 exit 0
 550
 551 #
 552 #
 553 # $Log$
 554 # Revision 1.46  1991/10/02 06:29:53  rich
 555 # Added +site=foo option for naming site specific Makefile fragments.
 556 #
 557 # Revision 1.45  1991/10/02  06:15:13  rich
 558 # Removed +f option.  Used to stand for +forcesubdirs which is now
 559 # called +subdirs.
 560 #
 561 # Revision 1.44  1991/10/02  06:02:35  rich
 562 # Added rcs log line.
 563 #
 564 #
 565 #
 566
 567 #
 568 # Local Variables:
 569 # fill-column: 131
 570 # End:
 571 #
 572
 573 # end of configure