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 #       -srcdir=* | +srcdir=* | +srcdi=* | +srcd=* | +src=* | +sr=* | +s=*)
 111 #               srcdir=`echo ${arg} | sed 's/[+-]s[a-z]*=//'`
 112 #               ;;
 113
 114         -subdirs | +su*)
 115                 subdirs=${arg}
 116                 ;;
 117         -target=* | +target=* | +targe=* | +targ=* | +tar=* | +ta=*)
 118                 if [ -n "${targets}" ] ; then
 119                         subdirs="+subdirs"
 120                 fi
 121
 122                 newtargets="${targets} `echo ${arg} | sed 's/[+-]t[a-z]*=//'`"
 123                 targets="${newtargets}"
 124                 ;;
 125         -v | -verbose | +v*)
 126                 verbose=${arg}
 127                 ;;
 128         -* | +*)
 129                 (echo ;
 130                 echo "Unrecognized option: \"${arg}\"". ;
 131                 echo) 1>&2
 132                 fatal=true
 133                 ;;
 134         *)
 135                 if [ -n "${hosts}" ] ; then
 136                         subdirs="+subdirs"
 137                 fi
 138
 139                 newhosts="${hosts} ${arg}"
 140                 hosts=${newhosts}
 141                 ;;
 142         esac
 143 done
 144
 145 if [ -n "${verbose}" ] ; then
 146         echo `pwd`/configure $*
 147 fi
 148
 149 # process host and target only if not removing.
 150 if [ -z "${removing}" -a -z "${fatal}" ] ; then
 151         # Complain if an arg is missing
 152         if [ -z "${hosts}" ] ; then
 153                 (echo ;
 154                 echo "configure: No HOST specified." ;
 155                 echo) 1>&2
 156                 fatal=true
 157         fi
 158 fi
 159
 160 if [ -n "${fatal}" -o "${hosts}" = "help" ] ; then
 161         (echo "Usage: configure HOST" ;
 162         echo ;
 163         echo "Options: [defaults in brackets]" ;
 164         echo " +ansi            configure w/ANSI library. [no ansi lib]" ;
 165         echo " +destdir=MYDIR   configure for installation into MYDIR. [/usr/local]" ;
 166         echo " +subdirs         configure in subdirectories.  [in source directories]" ;
 167         echo " +lang=LANG       configure to build LANG. [gcc]" ;
 168         echo " +help            print this message. [normal config]" ;
 169         echo " +gas             configure the compilers for use with gas. [native as]" ;
 170         echo " +nfp             configure the compilers default to soft floating point. [hard float]" ;
 171         echo " +norecursion     configure this directory only. [recurse]" ;
 172         echo " +rm              remove this configuration. [build a configuration]" ;
 173         echo " +target=TARGET   configure for TARGET.  [TARGET = HOST]" ;
 174         echo ;
 175         echo "Where HOST and TARGET are something like \"vax\", \"sun3\", \"encore\", etc." ;
 176         echo "Asking for more than one \"+target\" implies \"+subdirs\".  Any other" ;
 177         echo "options given will apply to all targets.") 1>&2
 178
 179         if [ -r config.status ] ; then
 180                 cat config.status
 181         fi
 182
 183         exit 1
 184 fi
 185
 186 ### break up configure.in.
 187 if [ -r configure.in ] ; then
 188         if [ -z "`grep '^# per\-host:' configure.in`" ] ; then
 189                 echo '***' `pwd`/configure.in has no "per-host:" line. 1>&2
 190                 exit 1
 191         fi
 192
 193         if [ -z "`grep '^# per\-target:' configure.in`" ] ; then
 194                 echo '***' `pwd`/configure.in has no "per-target:" line. 1>&2
 195                 exit 1
 196         fi
 197
 198         # split configure.in into common, per-host, per-target,
 199         # and post-target parts.  Post-target is optional.
 200         sed -e '/^# per\-host:/,$d' configure.in > configure.com
 201         sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' configure.in > configure.hst
 202         if grep -s '^# post-target:' configure.in ; then
 203           sed -e '1,/^# per\-target:/d' -e '/^# post\-target:/,$d' configure.in > configure.tgt
 204           sed -e '1,/^# post\-target:/d' configure.in > configure.pos
 205         else
 206           sed -e '1,/^# per\-target:/d' configure.in > configure.tgt
 207           echo >configure.pos
 208         fi
 209
 210 else
 211         echo '***' No configure.in in `pwd`
 212         exit 1
 213 fi
 214
 215 ### do common part of configure.in
 216
 217 . ./configure.com
 218
 219 # some sanity checks on configure.in
 220 if [ -z "${srctrigger}" ] ; then
 221         echo '***' srctrigger not set in `pwd`/configure.in.
 222         exit 1
 223 fi
 224
 225 for host in ${hosts} ; do
 226         # Default other arg
 227         if [ -z "${targets}" -o -n "${defaulttargets}" ] ; then
 228                 targets=${host}
 229                 defaulttargets=true
 230         fi
 231
 232         host_alias=${host}
 233
 234         result=`/bin/sh ./config.sub ${host}`
 235         host_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 236         host_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 237         host_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 238         host=${host_cpu}-${host_vendor}-${host_os}
 239         host_makefile_frag=config/hmake-${host}
 240
 241         . ./configure.hst
 242
 243         for target in ${targets} ; do
 244
 245                 target_alias=${target}
 246                 result=`/bin/sh ./config.sub ${target}`
 247                 target_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 248                 target_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 249                 target_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 250                 target=${target_cpu}-${target_vendor}-${target_os}
 251                 target_makefile_frag=config/tmake-${target}
 252
 253                 . ./configure.tgt
 254
 255                 # Temporarily, we support only direct subdir builds.
 256                 hostsubdir=H-${host_alias}
 257                 targetsubdir=T-${target_alias}
 258
 259                 if [ -n "${removing}" ] ; then
 260                         if [ -n "${subdirs}" ] ; then
 261                                 if [ -d "${hostsubdir}" ] ; then
 262                                         rm -rf ${hostsubdir}/${targetsubdir}
 263
 264                                         if [ -z "`(ls ${hostsubdir}) 2>&1 | grep T- | grep -v T-independent`" ] ; then
 265                                                 rm -rf ${hostsubdir}
 266                                         fi
 267                                 else
 268                                         echo Warning: no `pwd`/${hostsubdir} to remove.
 269                                 fi
 270                         else
 271                                 rm -f ${Makefile} config.status ${links}
 272                         fi
 273                 else
 274                         if [ -n "${subdirs}" ] ; then
 275                                 # check for existing status before allowing forced subdirs.
 276                                 if [ -f ${Makefile} ] ; then
 277                                         echo '***' "${Makefile} already exists in source directory.  `pwd` not configured." 1>&2
 278                                         exit 1
 279                                 fi
 280
 281                                 if [ ! -d ${hostsubdir} ] ; then mkdir ${hostsubdir} ; fi
 282                                 cd ${hostsubdir}
 283
 284                                 if [ ! -d ${targetsubdir} ] ; then
 285                                         if [ -z "${commontargets}" ] ; then
 286                                                 mkdir ${targetsubdir}
 287                                         else
 288                                                 if [ ! -d T-independent ] ; then
 289                                                         mkdir T-independent
 290                                                 fi
 291
 292                                                 ${symbolic_link} T-independent ${targetsubdir}
 293                                         fi # if target independent
 294                                 fi # if no target dir yet
 295
 296                                 cd ${targetsubdir}
 297
 298                                 srcdir=../..
 299                         else
 300                                 # if not subdir builds, then make sure none exist.
 301                                 if [ -n "`(ls .) 2>&1 | (grep H- ; true)`" ] ; then
 302                                         echo '***' "Configured subdirs exist.  `pwd` not configured." 1>&2
 303                                         exit 1
 304                                 else
 305                                         true
 306                                 fi
 307                         fi
 308
 309                         # Find the source files, if location was not specified.
 310                         if [ -z "${srcdir}" ] ; then
 311                                 srcdirdefaulted=1
 312                                 srcdir=.
 313                                 if [ -n "${srctrigger}" -a ! -r ${srctrigger} ] ; then
 314                                         srcdir=..
 315                                 fi
 316                         fi
 317
 318                         if [ -n "${srctrigger}" -a ! -r ${srcdir}/${srctrigger} ] ; then
 319                                 if [ -z "${srcdirdefaulted}" ] ; then
 320                                         echo '***' "${progname}: Can't find ${srcname} sources in `pwd`/${srcdir}" 1>&2
 321                                 else
 322                                         echo '***' "${progname}: Can't find ${srcname} sources in `pwd`/. or `pwd`/.." 1>&2
 323                                 fi
 324
 325                                 echo '***' \(At least ${srctrigger} is missing.\) 1>&2
 326                                 exit 1
 327                         fi
 328
 329                         # Set up the list of links to be made.
 330                         # ${links} is the list of link names, and ${files} is the list of names to link to.
 331
 332                         # Make the links.
 333                         while [ -n "${files}" ] ; do
 334                                 # set file to car of files, files to cdr of files
 335                                 set ${files}; file=$1; shift; files=$*
 336                                 set ${links}; link=$1; shift; links=$*
 337
 338                                 if [ ! -r ${srcdir}/${file} ] ; then
 339                                         echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
 340                                         echo '***' "since the file \"${file}\" does not exist." 1>&2
 341                                         exit 1
 342                                 fi
 343
 344                                 ${remove} -f ${link}
 345                                 rm -f config.status
 346                                 # Make a symlink if possible, otherwise try a hard link
 347                                 ${symbolic_link} ${srcdir}/${file} ${link} 2>/dev/null || ${hard_link} ${srcdir}/${file} ${link}
 348
 349                                 if [ ! -r ${link} ] ; then
 350                                         echo '***' "${progname}: unable to link \"${link}\" to \"${srcdir}/${file}\"." 1>&2
 351                                         exit 1
 352                                 fi
 353
 354                                 if [ -n "${verbose}" ] ; then
 355                                         echo "Linked \"${link}\" to \"${srcdir}/${file}\"."
 356                                 fi
 357                         done
 358
 359                         # Create a .gdbinit file which runs the one in srcdir
 360                         # and tells GDB to look there for source files.
 361
 362                         case ${srcdir} in
 363                         .)
 364                                 ;;
 365                         *)
 366                                 echo "dir ." > .gdbinit
 367                                 echo "dir ${srcdir}" >> .gdbinit
 368                                 echo "source ${srcdir}/.gdbinit" >> .gdbinit
 369                                 ;;
 370                         esac
 371
 372                         # Install a makefile, and make it set VPATH
 373                         # if necessary so that the sources are found.
 374                         # Also change its value of srcdir.
 375
 376                 # FIXME-someday: This business of always writing to .tem and mv back
 377                 # is so that I don't screw things up while developing.  Once this
 378                 # template is stable, these should be optimized. xoxorich.
 379
 380                         # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
 381                         if [ "${host}" != "${target}" ] ; then
 382                                 echo "CROSS=-DCROSS_COMPILE" > ${Makefile}
 383                                 echo "ALL=start.encap" >> ${Makefile}
 384                         else
 385                                 echo "ALL=all.internal" > ${Makefile}
 386                         fi
 387
 388                         # set target, host, VPATH
 389                         echo "host_alias = ${host_alias}" >> ${Makefile}
 390                         echo "host_cpu = ${host_cpu}" >> ${Makefile}
 391                         echo "host_vendor = ${host_vendor}" >> ${Makefile}
 392                         echo "host_os = ${host_os}" >> ${Makefile}
 393
 394                         echo "target_alias = ${target_alias}" >> ${Makefile}
 395                         echo "target_cpu = ${target_cpu}" >> ${Makefile}
 396                         echo "target_vendor = ${target_vendor}" >> ${Makefile}
 397                         echo "target_os = ${target_os}" >> ${Makefile}
 398
 399                         if [ -n "${subdirs}" ] ; then
 400                                 echo "subdir = /${hostsubdir}/${targetsubdir}" >> ${Makefile}
 401                         else
 402                                 echo "subdir =" >> ${Makefile}
 403                         fi
 404
 405                 #       echo "workdir = `pwd`" >> ${Makefile}
 406                         echo "VPATH = ${srcdir}" >> ${Makefile}
 407
 408                         # add "Makefile.in" (or whatever it's called)
 409                         cat ${srcdir}/${Makefile_in} >> ${Makefile}
 410
 411                         # Conditionalize the makefile for this host.
 412                         if [ -f ${srcdir}/${host_makefile_frag} ] ; then
 413                                 (echo "host_makefile_frag = ${srcdir}/${host_makefile_frag}" ;
 414                                         sed -e "/^####/  r ${srcdir}/${host_makefile_frag}" ${Makefile}) > Makefile.tem
 415                                 mv Makefile.tem ${Makefile}
 416                         fi
 417
 418                         # Conditionalize the makefile for this target.
 419                         if [ -f ${srcdir}/${target_makefile_frag} ] ; then
 420                                 (echo "target_makefile_frag = ${srcdir}/${target_makefile_frag}" ;
 421                                         sed -e "/^####/  r ${srcdir}/${target_makefile_frag}" ${Makefile}) > Makefile.tem
 422                                 mv Makefile.tem ${Makefile}
 423                         fi
 424
 425                         # set srcdir
 426                         sed "s@^srcdir = \.@srcdir = ${srcdir}@" ${Makefile} > Makefile.tem
 427                         mv Makefile.tem ${Makefile}
 428
 429                         # set destdir
 430                         if [ -n "${destdir}" ] ; then
 431                                 sed "s:^destdir =.*$:destdir = ${destdir}:" ${Makefile} > Makefile.tem
 432                                 mv Makefile.tem ${Makefile}
 433                         fi
 434
 435                         # reset SUBDIRS
 436                         sed "s:^SUBDIRS =.*$:SUBDIRS = ${configdirs}:" ${Makefile} > Makefile.tem
 437                         mv Makefile.tem ${Makefile}
 438
 439                         # reset NONSUBDIRS
 440                         sed "s:^NONSUBDIRS =.*$:NONSUBDIRS = ${noconfigdirs}:" ${Makefile} > Makefile.tem
 441                         mv Makefile.tem ${Makefile}
 442
 443                         using=
 444                         if [ -f ${srcdir}/${host_makefile_frag} ] ; then
 445                                 using=" using \"${host_makefile_frag}\""
 446                         fi
 447
 448                         # remove any form feeds.
 449                         sed -e "s/\f//" ${Makefile} > Makefile.tem
 450                         mv Makefile.tem ${Makefile}
 451
 452                         if [ -f ${srcdir}/${target_makefile_frag} ] ; then
 453                                 if [ -z "${using}" ] ; then
 454                                         andusing=" using \"${target_makefile_frag}\""
 455                                 else
 456                                         andusing="${using} and \"${target_makefile_frag}\""
 457                                 fi
 458                         else
 459                                 andusing=${using}
 460                         fi
 461
 462                         if [ -n "${verbose}" -o -z "${recurring}" ] ; then
 463                                 echo "Created \"${Makefile}\"" in `pwd`${andusing}.
 464                         fi
 465
 466                         if [ -f ./configure.pos ] ; then
 467                                 . ./configure.pos
 468                         fi
 469
 470                         # describe the chosen configuration in config.status.
 471                         # Make that file a shellscript which will reestablish
 472                         # the same configuration.  Used in Makefiles to rebuild
 473                         # Makefiles.
 474
 475                         echo "#!/bin/sh
 476 # ${srcname} was configured as follows:
 477 ${srcdir}/configure" ${arguments} `if [ -z "${norecursion}" ] ; then echo +norecursion ; else true ; fi` > config.status
 478                         chmod a+x config.status
 479
 480                         originaldir=`pwd`
 481                         cd ${srcdir}
 482                 fi
 483
 484                 # If there are subdirectories, then recurse.
 485                 if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then
 486                         for configdir in ${configdirs} ; do
 487                                 if [ -n "${verbose}" ] ; then
 488                                         echo Configuring ${configdir}...
 489                                 fi
 490
 491                                 if [ -d ${configdir} ] ; then
 492                                         (cd ${configdir} ;
 493                                                 configure +recurring ${host_alias} +target=${target_alias} \
 494                                                         ${verbose} ${subdirs} ${removing} +destdir=${destdir}) \
 495                                                 | sed 's/^/     /'
 496                                 else
 497                                         if [ -n "${verbose}" ] ; then
 498                                                 echo Warning: directory \"${configdir}\" is missing.
 499                                         fi
 500                                 fi
 501                         done
 502                 fi
 503         done # for each target
 504
 505         # Now build a Makefile for this host.
 506         if [ -n "${subdirs}" -a ! -n "${removing}" ] ; then
 507                 cd ${hostsubdir}
 508                 cat > GNUmakefile << E!O!F
 509 # Makefile generated by configure for host ${host_alias}.
 510
 511 ALL := $(shell ls -d T-*)
 512
 513 %:
 514         $(foreach subdir,$(ALL),$(MAKE) -C $(subdir) \$@ &&) true
 515
 516 all:
 517 E!O!F
 518                 cd ..
 519         fi
 520 done # for each host
 521
 522 ### clean up.
 523
 524 rm -f configure.com configure.tgt configure.hst configure.pos
 525
 526 exit 0
 527
 528 #
 529 #
 530 # $Log$
 531 # Revision 1.45  1991/10/02 06:15:13  rich
 532 # Removed +f option.  Used to stand for +forcesubdirs which is now
 533 # called +subdirs.
 534 #
 535 # Revision 1.44  1991/10/02  06:02:35  rich
 536 # Added rcs log line.
 537 #
 538 #
 539 #
 540
 541 #
 542 # Local Variables:
 543 # fill-column: 131
 544 # End:
 545 #
 546
 547 # end of configure