fixincludes/fixinc.in

   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 GCC will search.
   6 #
   7 # See README-fixinc for more information.
   8 #
   9 #  fixincludes copyright (c) 1998, 1999, 2000, 2002, 2009
  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 3, 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 COPYING3.  If not see
  25 # <http://www.gnu.org/licenses/>.
  26 #
  27 # # # # # # # # # # # # # # # # # # # # #
  28
  29 # Usage: fixinc.sh output-dir input-dir
  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=`${PWDCMD}`/fixincl
  98 if [ ! -x $FIXINCL ] ; then
  99   echo "Cannot find fixincl" >&2
 100   exit 1
 101 fi
 102 export FIXINCL
 103
 104 # Make LIB absolute only if needed to avoid problems with the amd.
 105 case $LIB in
 106 /*)
 107     ;;
 108 *)
 109     cd $LIB; LIB=`${PWDCMD}`
 110     ;;
 111 esac
 112
 113 if test $VERBOSE -gt 0
 114 then echo Fixing headers into ${LIB} for ${target_canonical} target ; fi
 115
 116 # Determine whether this system has symbolic links.
 117 if test -n "$DJDIR"; then
 118   LINKS=false
 119 elif ln -s X $LIB/ShouldNotExist 2>/dev/null; then
 120   rm -f $LIB/ShouldNotExist
 121   LINKS=true
 122 elif ln -s X /tmp/ShouldNotExist 2>/dev/null; then
 123   rm -f /tmp/ShouldNotExist
 124   LINKS=true
 125 else
 126   LINKS=false
 127 fi
 128
 129 # # # # # # # # # # # # # # # # # # # # #
 130 #
 131 #  In the file macro_list are listed all the predefined
 132 #  macros that are not in the C89 reserved namespace (the reserved
 133 #  namespace is all identifiers beginnning with two underscores or one
 134 #  underscore followed by a capital letter).  A regular expression to find
 135 #  any of those macros in a header file is written to MN_NAME_PAT.
 136 #
 137 #  Note dependency on ASCII. \012 = newline.
 138 #  tr ' ' '\n' is, alas, not portable.
 139
 140 if test -s ${MACRO_LIST}
 141 then
 142   if test $VERBOSE -gt 0; then
 143     echo "Forbidden identifiers: `tr '\012' ' ' < ${MACRO_LIST}`"
 144   fi
 145   MN_NAME_PAT="`sed 's/^/\\\\</; s/$/\\\\>/; $!s/$/|/' \
 146       < ${MACRO_LIST} | tr -d '\012'`"
 147   export MN_NAME_PAT
 148 else
 149   if test $VERBOSE -gt 0
 150   then echo "No forbidden identifiers defined by this target" ; fi
 151 fi
 152
 153 # # # # # # # # # # # # # # # # # # # # #
 154 #
 155 #  Search each input directory for broken header files.
 156 #  This loop ends near the end of the file.
 157 #
 158 if test $# -eq 0
 159 then
 160     INPUTLIST="/usr/include"
 161 else
 162     INPUTLIST="$@"
 163 fi
 164
 165 for INPUT in ${INPUTLIST} ; do
 166
 167 cd ${ORIGDIR}
 168
 169 #  Make sure a directory exists before changing into it,
 170 #  otherwise Solaris2 will fail-exit the script.
 171 #
 172 if [ ! -d ${INPUT} ]; then
 173   continue
 174 fi
 175 cd ${INPUT}
 176
 177 INPUT=`${PWDCMD}`
 178 export INPUT
 179
 180 #
 181 # # # # # # # # # # # # # # # # # # # # #
 182 #
 183 if test $VERBOSE -gt 1
 184 then echo Finding directories and links to directories ; fi
 185
 186 # Find all directories and all symlinks that point to directories.
 187 # Put the list in $all_dirs.
 188 # Each time we find a symlink, add it to newdirs
 189 # so that we do another find within the dir the link points to.
 190 # Note that $all_dirs may have duplicates in it;
 191 # later parts of this file are supposed to ignore them.
 192 dirs="."
 193 levels=2
 194 all_dirs=""
 195 search_dirs=""
 196
 197 while [ -n "$dirs" ] && [ $levels -gt 0 ]
 198 do
 199   levels=`expr $levels - 1`
 200   newdirs=
 201   for d in $dirs
 202   do
 203     if test $VERBOSE -gt 1
 204     then echo " Searching $INPUT/$d" ; fi
 205
 206     # Find all directories under $d, relative to $d, excluding $d itself.
 207     # (The /. is needed after $d in case $d is a symlink.)
 208     all_dirs="$all_dirs `find $d/. -type d -print | \
 209                sed -e '/\/\.$/d' -e 's@/./@/@g'`"
 210     # Find all links to directories.
 211     # Using `-exec test -d' in find fails on some systems,
 212     # and trying to run test via sh fails on others,
 213     # so this is the simplest alternative left.
 214     # First find all the links, then test each one.
 215     theselinks=
 216     $LINKS && \
 217       theselinks=`find $d/. -type l -print | sed -e 's@/./@/@g'`
 218     for d1 in $theselinks --dummy--
 219     do
 220       # If the link points to a directory,
 221       # add that dir to $newdirs
 222       if [ -d $d1 ]
 223       then
 224         all_dirs="$all_dirs $d1"
 225         if [ "`ls -ld $d1 | sed -n 's/.*-> //p'`" != "." ]
 226         then
 227           newdirs="$newdirs $d1"
 228           search_dirs="$search_dirs $d1"
 229         fi
 230       fi
 231     done
 232   done
 233
 234   dirs="$newdirs"
 235 done
 236
 237 # # # # # # # # # # # # # # # # # # # # #
 238 #
 239 dirs=
 240 if test $VERBOSE -gt 2
 241 then echo "All directories (including links to directories):"
 242      echo $all_dirs
 243 fi
 244
 245 for file in $all_dirs; do
 246   rm -rf $LIB/$file
 247   if [ ! -d $LIB/$file ]
 248   then mkdir $LIB/$file
 249   fi
 250 done
 251 mkdir $LIB/root
 252
 253 # # # # # # # # # # # # # # # # # # # # #
 254 #
 255 # treetops gets an alternating list
 256 # of old directories to copy
 257 # and the new directories to copy to.
 258 treetops=". ${LIB}"
 259
 260 if $LINKS; then
 261   if test $VERBOSE -gt 1
 262   then echo 'Making symbolic directory links' ; fi
 263   cwd=`${PWDCMD}`
 264
 265   for sym_link in $search_dirs; do
 266     cd ${INPUT}
 267     dest=`ls -ld ${sym_link} | sed -n 's/.*-> //p'`
 268
 269     # In case $dest is relative, get to ${sym_link}'s dir first.
 270     #
 271     cd ./`echo ${sym_link} | sed 's;/[^/]*$;;'`
 272
 273     # Check that the target directory exists.
 274     # Redirections changed to avoid bug in sh on Ultrix.
 275     #
 276     (cd $dest) > /dev/null 2>&1
 277     if [ $? = 0 ]; then
 278       cd $dest
 279
 280       # full_dest_dir gets the dir that the link actually leads to.
 281       #
 282       full_dest_dir=`${PWDCMD}`
 283
 284       # Canonicalize ${INPUT} now to minimize the time an
 285       # automounter has to change the result of ${PWDCMD}.
 286       #
 287       cinput=`cd ${INPUT}; ${PWDCMD}`
 288
 289       # If a link points to ., make a similar link to .
 290       #
 291       if [ ${full_dest_dir} = ${cinput} ]; then
 292         if test $VERBOSE -gt 2
 293         then echo ${sym_link} '->' . ': Making self link' ; fi
 294         rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
 295         ln -s . ${LIB}/${sym_link} > /dev/null 2>&1
 296
 297       # If link leads back into ${INPUT},
 298       # make a similar link here.
 299       #
 300       elif expr ${full_dest_dir} : "${cinput}/.*" > /dev/null; then
 301         # Y gets the actual target dir name, relative to ${INPUT}.
 302         y=`echo ${full_dest_dir} | sed -n "s&${cinput}/&&p"`
 303         # DOTS is the relative path from ${LIB}/${sym_link} back to ${LIB}.
 304         dots=`echo "${sym_link}" |
 305           sed -e 's@^./@@' -e 's@/./@/@g' -e 's@[^/][^/]*@..@g' -e 's@..$@@'`
 306         if test $VERBOSE -gt 2
 307         then echo ${sym_link} '->' $dots$y ': Making local link' ; fi
 308         rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
 309         ln -s $dots$y ${LIB}/${sym_link} > /dev/null 2>&1
 310
 311       else
 312         # If the link is to a dir $target outside ${INPUT},
 313         # repoint the link at ${INPUT}/root$target
 314         # and process $target into ${INPUT}/root$target
 315         # treat this directory as if it actually contained the files.
 316         #
 317         if test $VERBOSE -gt 2
 318         then echo ${sym_link} '->' root${full_dest_dir} ': Making rooted link'
 319         fi
 320         if [ -d $LIB/root${full_dest_dir} ]
 321         then true
 322         else
 323           dirname=root${full_dest_dir}/
 324           dirmade=.
 325           cd $LIB
 326           while [ x$dirname != x ]; do
 327             component=`echo $dirname | sed -e 's|/.*$||'`
 328             mkdir $component >/dev/null 2>&1
 329             cd $component
 330             dirmade=$dirmade/$component
 331             dirname=`echo $dirname | sed -e 's|[^/]*/||'`
 332           done
 333         fi
 334
 335         # Duplicate directory structure created in ${LIB}/${sym_link} in new
 336         # root area.
 337         #
 338         for file2 in $all_dirs; do
 339           case $file2 in
 340             ${sym_link}/*)
 341               dupdir=${LIB}/root${full_dest_dir}/`echo $file2 |
 342                       sed -n "s|^${sym_link}/||p"`
 343               if test $VERBOSE -gt 2
 344               then echo "Duplicating ${sym_link}'s ${dupdir}" ; fi
 345               if [ -d ${dupdir} ]
 346               then true
 347               else
 348                 mkdir ${dupdir}
 349               fi
 350               ;;
 351             *)
 352               ;;
 353           esac
 354         done
 355
 356         # Get the path from ${LIB} to ${sym_link}, accounting for symlinks.
 357         #
 358         parent=`echo "${sym_link}" | sed -e 's@/[^/]*$@@'`
 359         libabs=`cd ${LIB}; ${PWDCMD}`
 360         file2=`cd ${LIB}; cd $parent; ${PWDCMD} | sed -e "s@^${libabs}@@"`
 361
 362         # DOTS is the relative path from ${LIB}/${sym_link} back to ${LIB}.
 363         #
 364         dots=`echo "$file2" | sed -e 's@/[^/]*@../@g'`
 365         rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
 366         ln -s ${dots}root${full_dest_dir} ${LIB}/${sym_link} > /dev/null 2>&1
 367         treetops="$treetops ${sym_link} ${LIB}/root${full_dest_dir}"
 368       fi
 369     fi
 370   done
 371 fi
 372
 373 # # # # # # # # # # # # # # # # # # # # #
 374 #
 375 required=
 376 set x $treetops
 377 shift
 378 while [ $# != 0 ]; do
 379   # $1 is an old directory to copy, and $2 is the new directory to copy to.
 380   #
 381   SRCDIR=`cd ${INPUT} ; cd $1 ; ${PWDCMD}`
 382   export SRCDIR
 383
 384   FIND_BASE=$1
 385   export FIND_BASE
 386   shift
 387
 388   DESTDIR=`cd $1;${PWDCMD}`
 389   export DESTDIR
 390   shift
 391
 392   # The same dir can appear more than once in treetops.
 393   # There's no need to scan it more than once.
 394   #
 395   if [ -f ${DESTDIR}/DONE ]
 396   then continue ; fi
 397
 398   touch ${DESTDIR}/DONE
 399   if test $VERBOSE -gt 1
 400   then echo Fixing directory ${SRCDIR} into ${DESTDIR} ; fi
 401
 402   # Check files which are symlinks as well as those which are files.
 403   #
 404   cd ${INPUT}
 405   required="$required `if $LINKS; then
 406     find ${FIND_BASE}/. -name '*.h' \( -type f -o -type l \) -print
 407   else
 408     find ${FIND_BASE}/. -name '*.h' -type f -print
 409   fi | \
 410     sed -e 's;/\./;/;g' -e 's;//*;/;g' | \
 411     ${FIXINCL}`"
 412 done
 413
 414 ## Make sure that any include files referenced using double quotes
 415 ## exist in the fixed directory.  This comes last since otherwise
 416 ## we might end up deleting some of these files "because they don't
 417 ## need any change."
 418 set x `echo $required`
 419 shift
 420 while [ $# != 0 ]; do
 421   newreq=
 422   while [ $# != 0 ]; do
 423     # $1 is the directory to copy from,
 424     # $2 is the unfixed file,
 425     # $3 is the fixed file name.
 426     #
 427     cd ${INPUT}
 428     cd $1
 429     if [ -f $2 ] ; then
 430       if [ -r $2 ] && [ ! -r $3 ]; then
 431         cp $2 $3 >/dev/null 2>&1 || echo "Can't copy $2" >&2
 432         chmod +w $3 2>/dev/null
 433         chmod a+r $3 2>/dev/null
 434         if test $VERBOSE -gt 2
 435         then echo Copied $2 ; fi
 436         for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' $3 |
 437              sed -e 's/^[       ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`
 438         do
 439           dir=`echo $2 | sed -e s'|/[^/]*$||'`
 440           dir2=`echo $3 | sed -e s'|/[^/]*$||'`
 441           newreq="$newreq $1 $dir/$include $dir2/$include"
 442         done
 443       fi
 444     fi
 445     shift; shift; shift
 446   done
 447   set x $newreq
 448   shift
 449 done
 450
 451 if test $VERBOSE -gt 2
 452 then echo 'Cleaning up DONE files.' ; fi
 453 cd $LIB
 454 # Look for files case-insensitively, for the benefit of
 455 # DOS/Windows filesystems.
 456 find . -name '[Dd][Oo][Nn][Ee]' -exec rm -f '{}' ';'
 457
 458 if test $VERBOSE -gt 1
 459 then echo 'Cleaning up unneeded directories:' ; fi
 460 cd $LIB
 461 all_dirs=`find . -type d \! -name '.' -print | sort -r`
 462 for file in $all_dirs; do
 463   if rmdir $LIB/$file > /dev/null
 464   then
 465     test $VERBOSE -gt 3 && echo "  removed $file"
 466   fi
 467 done 2> /dev/null
 468
 469 # On systems which don't support symlinks, `find' may barf
 470 # if called with "-type l" predicate.  So only use that if
 471 # we know we should look for symlinks.
 472 if $LINKS; then
 473   test $VERBOSE -gt 2 && echo "Removing unused symlinks"
 474
 475   all_dirs=`find . -type l -print`
 476   for file in $all_dirs
 477   do
 478     if test ! -d $file
 479     then
 480       rm -f $file
 481       test $VERBOSE -gt 3 && echo "  removed $file"
 482       rmdir `dirname $file` > /dev/null && \
 483            test $VERBOSE -gt 3 && \
 484            echo "  removed `dirname $file`"
 485     fi
 486   done 2> /dev/null
 487 fi
 488
 489 if test $VERBOSE -gt 0
 490 then echo fixincludes is done ; fi
 491
 492 # # # # # # # # # # # # # # # # # # # # #
 493 #
 494 # End of for INPUT directories
 495 #
 496 done
 497 #
 498 # # # # # # # # # # # # # # # # # # # # #