gcc/fixinc/fixincl.sh

   1 #!/bin/sh
   2 #
   3 # Install modified versions of certain ANSI-incompatible system header
   4 # files which are fixed to work correctly with ANSI C and placed in a
   5 # directory that GNU C will search.
   6 #
   7 # See README-fixinc for more information.
   8 #
   9 #  fixincludes copyright (c) 1998, 1999, 2000, 2002
  10 #  The Free Software Foundation, Inc.
  11 #
  12 # fixincludes is free software.
  13 #
  14 # You may redistribute it and/or modify it under the terms of the
  15 # GNU General Public License, as published by the Free Software
  16 # Foundation; either version 2, or (at your option) any later version.
  17 #
  18 # fixincludes is distributed in the hope that it will be useful,
  19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  21 # See the GNU General Public License for more details.
  22 #
  23 # You should have received a copy of the GNU General Public License
  24 # along with fixincludes.  See the file "COPYING".  If not,
  25 # write to:  The Free Software Foundation, Inc.,
  26 #            59 Temple Place - Suite 330,
  27 #            Boston,  MA  02111-1307, USA.
  28 #
  29 # # # # # # # # # # # # # # # # # # # # #
  30 #
  31 # Directory in which to store the results.
  32 # Fail if no arg to specify a directory for the output.
  33 if [ "x$1" = "x" ]
  34 then
  35   echo fixincludes: no output directory specified
  36   exit 1
  37 fi
  38
  39 LIB=${1}
  40 shift
  41
  42 # Make sure it exists.
  43 if [ ! -d $LIB ]; then
  44   mkdir $LIB || {
  45     echo fixincludes:  output dir '`'$LIB"' cannot be created"
  46     exit 1
  47   }
  48 else
  49   ( cd $LIB && touch DONE && rm DONE ) || {
  50     echo fixincludes:  output dir '`'$LIB"' is an invalid directory"
  51     exit 1
  52   }
  53 fi
  54
  55 if test -z "$VERBOSE"
  56 then
  57   VERBOSE=2
  58   export VERBOSE
  59 else
  60   case "$VERBOSE" in
  61   [0-9] ) : ;;
  62   * )  VERBOSE=3 ;;
  63   esac
  64 fi
  65
  66 # Define what target system we're fixing.
  67 #
  68 if test -r ./Makefile; then
  69   target_canonical="`sed -n -e 's,^target[      ]*=[    ]*\(.*\)$,\1,p' < Makefile`"
  70 fi
  71
  72 # If not from the Makefile, then try config.guess
  73 #
  74 if test -z "${target_canonical}" ; then
  75   if test -x ./config.guess ; then
  76     target_canonical="`config.guess`" ; fi
  77   test -z "${target_canonical}" && target_canonical=unknown
  78 fi
  79 export target_canonical
  80
  81 # # # # # # # # # # # # # # # # # # # # #
  82 #
  83 # Define PWDCMD as a command to use to get the working dir
  84 # in the form that we want.
  85 PWDCMD=${PWDCMD-pwd}
  86
  87 case "`$PWDCMD`" in
  88 //*)
  89     # On an Apollo, discard everything before `/usr'.
  90     PWDCMD="eval pwd | sed -e 's,.*/usr/,/usr/,'"
  91     ;;
  92 esac
  93
  94 # Original directory.
  95 ORIGDIR=`${PWDCMD}`
  96 export ORIGDIR
  97 FIXINCL=${ORIGDIR}/fixinc/fixincl
  98 if [ ! -x $FIXINCL ] ; then
  99   FIXINCL=${ORIGDIR}/fixincl
 100   if [ ! -x $FIXINCL ] ; then
 101     echo "Cannot find working fixincl" >&2
 102     exit 1
 103   fi
 104 fi
 105 export FIXINCL
 106
 107 # Make LIB absolute only if needed to avoid problems with the amd.
 108 case $LIB in
 109 /*)
 110     ;;
 111 *)
 112     cd $LIB; LIB=`${PWDCMD}`
 113     ;;
 114 esac
 115
 116 if test $VERBOSE -gt 0
 117 then echo Fixing headers into ${LIB} for ${target_canonical} target ; fi
 118
 119 # Determine whether this system has symbolic links.
 120 if test -n "$DJDIR"; then
 121   LINKS=false
 122 elif ln -s X $LIB/ShouldNotExist 2>/dev/null; then
 123   rm -f $LIB/ShouldNotExist
 124   LINKS=true
 125 elif ln -s X /tmp/ShouldNotExist 2>/dev/null; then
 126   rm -f /tmp/ShouldNotExist
 127   LINKS=true
 128 else
 129   LINKS=false
 130 fi
 131
 132 # # # # # # # # # # # # # # # # # # # # #
 133 #
 134 #  Search each input directory for broken header files.
 135 #  This loop ends near the end of the file.
 136 #
 137 if test $# -eq 0
 138 then
 139     INPUTLIST="/usr/include"
 140 else
 141     INPUTLIST="$@"
 142 fi
 143
 144 for INPUT in ${INPUTLIST} ; do
 145
 146 cd ${ORIGDIR}
 147
 148 #  Make sure a directory exists before changing into it,
 149 #  otherwise Solaris2 will fail-exit the script.
 150 #
 151 if [ ! -d ${INPUT} ]; then
 152   continue
 153 fi
 154 cd ${INPUT}
 155
 156 INPUT=`${PWDCMD}`
 157 export INPUT
 158
 159 #
 160 # # # # # # # # # # # # # # # # # # # # #
 161 #
 162 if test $VERBOSE -gt 1
 163 then echo Finding directories and links to directories ; fi
 164
 165 # Find all directories and all symlinks that point to directories.
 166 # Put the list in $all_dirs.
 167 # Each time we find a symlink, add it to newdirs
 168 # so that we do another find within the dir the link points to.
 169 # Note that $all_dirs may have duplicates in it;
 170 # later parts of this file are supposed to ignore them.
 171 dirs="."
 172 levels=2
 173 all_dirs=""
 174 search_dirs=""
 175
 176 while [ -n "$dirs" ] && [ $levels -gt 0 ]
 177 do
 178   levels=`expr $levels - 1`
 179   newdirs=
 180   for d in $dirs
 181   do
 182     if test $VERBOSE -gt 1
 183     then echo " Searching $INPUT/$d" ; fi
 184
 185     # Find all directories under $d, relative to $d, excluding $d itself.
 186     # (The /. is needed after $d in case $d is a symlink.)
 187     all_dirs="$all_dirs `find $d/. -type d -print | \
 188                sed -e '/\/\.$/d' -e 's@/./@/@g'`"
 189     # Find all links to directories.
 190     # Using `-exec test -d' in find fails on some systems,
 191     # and trying to run test via sh fails on others,
 192     # so this is the simplest alternative left.
 193     # First find all the links, then test each one.
 194     theselinks=
 195     $LINKS && \
 196       theselinks=`find $d/. -type l -print | sed -e 's@/./@/@g'`
 197     for d1 in $theselinks --dummy--
 198     do
 199       # If the link points to a directory,
 200       # add that dir to $newdirs
 201       if [ -d $d1 ]
 202       then
 203         all_dirs="$all_dirs $d1"
 204         if [ "`ls -ld $d1 | sed -n 's/.*-> //p'`" != "." ]
 205         then
 206           newdirs="$newdirs $d1"
 207           search_dirs="$search_dirs $d1"
 208         fi
 209       fi
 210     done
 211   done
 212
 213   dirs="$newdirs"
 214 done
 215
 216 # # # # # # # # # # # # # # # # # # # # #
 217 #
 218 dirs=
 219 if test $VERBOSE -gt 2
 220 then echo "All directories (including links to directories):"
 221      echo $all_dirs
 222 fi
 223
 224 for file in $all_dirs; do
 225   rm -rf $LIB/$file
 226   if [ ! -d $LIB/$file ]
 227   then mkdir $LIB/$file
 228   fi
 229 done
 230 mkdir $LIB/root
 231
 232 # # # # # # # # # # # # # # # # # # # # #
 233 #
 234 # treetops gets an alternating list
 235 # of old directories to copy
 236 # and the new directories to copy to.
 237 treetops=". ${LIB}"
 238
 239 if $LINKS; then
 240   if test $VERBOSE -gt 1
 241   then echo 'Making symbolic directory links' ; fi
 242   cwd=`${PWDCMD}`
 243
 244   for sym_link in $search_dirs; do
 245     cd ${INPUT}
 246     dest=`ls -ld ${sym_link} | sed -n 's/.*-> //p'`
 247
 248     # In case $dest is relative, get to ${sym_link}'s dir first.
 249     #
 250     cd ./`echo ${sym_link} | sed 's;/[^/]*$;;'`
 251
 252     # Check that the target directory exists.
 253     # Redirections changed to avoid bug in sh on Ultrix.
 254     #
 255     (cd $dest) > /dev/null 2>&1
 256     if [ $? = 0 ]; then
 257       cd $dest
 258
 259       # full_dest_dir gets the dir that the link actually leads to.
 260       #
 261       full_dest_dir=`${PWDCMD}`
 262
 263       # Canonicalize ${INPUT} now to minimize the time an
 264       # automounter has to change the result of ${PWDCMD}.
 265       #
 266       cinput=`cd ${INPUT}; ${PWDCMD}`
 267
 268       # If a link points to ., make a similar link to .
 269       #
 270       if [ ${full_dest_dir} = ${cinput} ]; then
 271         if test $VERBOSE -gt 2
 272         then echo ${sym_link} '->' . ': Making self link' ; fi
 273         rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
 274         ln -s . ${LIB}/${sym_link} > /dev/null 2>&1
 275
 276       # If link leads back into ${INPUT},
 277       # make a similar link here.
 278       #
 279       elif expr ${full_dest_dir} : "${cinput}/.*" > /dev/null; then
 280         # Y gets the actual target dir name, relative to ${INPUT}.
 281         y=`echo ${full_dest_dir} | sed -n "s&${cinput}/&&p"`
 282         # DOTS is the relative path from ${LIB}/${sym_link} back to ${LIB}.
 283         dots=`echo "${sym_link}" |
 284           sed -e 's@^./@@' -e 's@/./@/@g' -e 's@[^/][^/]*@..@g' -e 's@..$@@'`
 285         if test $VERBOSE -gt 2
 286         then echo ${sym_link} '->' $dots$y ': Making local link' ; fi
 287         rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
 288         ln -s $dots$y ${LIB}/${sym_link} > /dev/null 2>&1
 289
 290       else
 291         # If the link is to a dir $target outside ${INPUT},
 292         # repoint the link at ${INPUT}/root$target
 293         # and process $target into ${INPUT}/root$target
 294         # treat this directory as if it actually contained the files.
 295         #
 296         if test $VERBOSE -gt 2
 297         then echo ${sym_link} '->' root${full_dest_dir} ': Making rooted link'
 298         fi
 299         if [ -d $LIB/root${full_dest_dir} ]
 300         then true
 301         else
 302           dirname=root${full_dest_dir}/
 303           dirmade=.
 304           cd $LIB
 305           while [ x$dirname != x ]; do
 306             component=`echo $dirname | sed -e 's|/.*$||'`
 307             mkdir $component >/dev/null 2>&1
 308             cd $component
 309             dirmade=$dirmade/$component
 310             dirname=`echo $dirname | sed -e 's|[^/]*/||'`
 311           done
 312         fi
 313
 314         # Duplicate directory structure created in ${LIB}/${sym_link} in new
 315         # root area.
 316         #
 317         for file2 in $all_dirs; do
 318           case $file2 in
 319             ${sym_link}/*)
 320               dupdir=${LIB}/root${full_dest_dir}/`echo $file2 |
 321                       sed -n "s|^${sym_link}/||p"`
 322               if test $VERBOSE -gt 2
 323               then echo "Duplicating ${sym_link}'s ${dupdir}" ; fi
 324               if [ -d ${dupdir} ]
 325               then true
 326               else
 327                 mkdir ${dupdir}
 328               fi
 329               ;;
 330             *)
 331               ;;
 332           esac
 333         done
 334
 335         # Get the path from ${LIB} to ${sym_link}, accounting for symlinks.
 336         #
 337         parent=`echo "${sym_link}" | sed -e 's@/[^/]*$@@'`
 338         libabs=`cd ${LIB}; ${PWDCMD}`
 339         file2=`cd ${LIB}; cd $parent; ${PWDCMD} | sed -e "s@^${libabs}@@"`
 340
 341         # DOTS is the relative path from ${LIB}/${sym_link} back to ${LIB}.
 342         #
 343         dots=`echo "$file2" | sed -e 's@/[^/]*@../@g'`
 344         rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
 345         ln -s ${dots}root${full_dest_dir} ${LIB}/${sym_link} > /dev/null 2>&1
 346         treetops="$treetops ${sym_link} ${LIB}/root${full_dest_dir}"
 347       fi
 348     fi
 349   done
 350 fi
 351
 352 # # # # # # # # # # # # # # # # # # # # #
 353 #
 354 required=
 355 set x $treetops
 356 shift
 357 while [ $# != 0 ]; do
 358   # $1 is an old directory to copy, and $2 is the new directory to copy to.
 359   #
 360   SRCDIR=`cd ${INPUT} ; cd $1 ; ${PWDCMD}`
 361   export SRCDIR
 362
 363   FIND_BASE=$1
 364   export FIND_BASE
 365   shift
 366
 367   DESTDIR=`cd $1;${PWDCMD}`
 368   export DESTDIR
 369   shift
 370
 371   # The same dir can appear more than once in treetops.
 372   # There's no need to scan it more than once.
 373   #
 374   if [ -f ${DESTDIR}/DONE ]
 375   then continue ; fi
 376
 377   touch ${DESTDIR}/DONE
 378   if test $VERBOSE -gt 1
 379   then echo Fixing directory ${SRCDIR} into ${DESTDIR} ; fi
 380
 381   # Check files which are symlinks as well as those which are files.
 382   #
 383   cd ${INPUT}
 384   required="$required `if $LINKS; then
 385     find ${FIND_BASE}/. -name '*.h' \( -type f -o -type l \) -print
 386   else
 387     find ${FIND_BASE}/. -name '*.h' -type f -print
 388   fi | \
 389     sed -e 's;/\./;/;g' -e 's;//*;/;g' | \
 390     ${FIXINCL}`"
 391 done
 392
 393 ## Make sure that any include files referenced using double quotes
 394 ## exist in the fixed directory.  This comes last since otherwise
 395 ## we might end up deleting some of these files "because they don't
 396 ## need any change."
 397 set x `echo $required`
 398 shift
 399 while [ $# != 0 ]; do
 400   newreq=
 401   while [ $# != 0 ]; do
 402     # $1 is the directory to copy from,
 403     # $2 is the unfixed file,
 404     # $3 is the fixed file name.
 405     #
 406     cd ${INPUT}
 407     cd $1
 408     if [ -f $2 ] ; then
 409       if [ -r $2 ] && [ ! -r $3 ]; then
 410         cp $2 $3 >/dev/null 2>&1 || echo "Can't copy $2" >&2
 411         chmod +w $3 2>/dev/null
 412         chmod a+r $3 2>/dev/null
 413         if test $VERBOSE -gt 2
 414         then echo Copied $2 ; fi
 415         for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' $3 |
 416              sed -e 's/^[       ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`
 417         do
 418           dir=`echo $2 | sed -e s'|/[^/]*$||'`
 419           dir2=`echo $3 | sed -e s'|/[^/]*$||'`
 420           newreq="$newreq $1 $dir/$include $dir2/$include"
 421         done
 422       fi
 423     fi
 424     shift; shift; shift
 425   done
 426   set x $newreq
 427   shift
 428 done
 429
 430 if test $VERBOSE -gt 2
 431 then echo 'Cleaning up DONE files.' ; fi
 432 cd $LIB
 433 # Look for files case-insensitively, for the benefit of
 434 # DOS/Windows filesystems.
 435 find . -name '[Dd][Oo][Nn][Ee]' -exec rm -f '{}' ';'
 436
 437 if test $VERBOSE -gt 1
 438 then echo 'Cleaning up unneeded directories:' ; fi
 439 cd $LIB
 440 all_dirs=`find . -type d \! -name '.' -print | sort -r`
 441 for file in $all_dirs; do
 442   if rmdir $LIB/$file > /dev/null
 443   then
 444     test $VERBOSE -gt 3 && echo "  removed $file"
 445   fi
 446 done 2> /dev/null
 447
 448 # On systems which don't support symlinks, `find' may barf
 449 # if called with "-type l" predicate.  So only use that if
 450 # we know we should look for symlinks.
 451 if $LINKS; then
 452   test $VERBOSE -gt 2 && echo "Removing unused symlinks"
 453
 454   all_dirs=`find . -type l -print`
 455   for file in $all_dirs
 456   do
 457     if test ! -d $file
 458     then
 459       rm -f $file
 460       test $VERBOSE -gt 3 && echo "  removed $file"
 461       rmdir `dirname $file` > /dev/null && \
 462            test $VERBOSE -gt 3 && \
 463            echo "  removed `dirname $file`"
 464     fi
 465   done 2> /dev/null
 466 fi
 467
 468 if test $VERBOSE -gt 0
 469 then echo fixincludes is done ; fi
 470
 471 # # # # # # # # # # # # # # # # # # # # #
 472 #
 473 # End of for INPUT directories
 474 #
 475 done
 476 #
 477 # # # # # # # # # # # # # # # # # # # # #