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