summaryrefslogtreecommitdiff
path: root/fixincludes/fixinc.in
blob: e73aed99a1ba9bb52653e1a61e55b7413e4c4b63 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
#!/bin/sh
#
# Install modified versions of certain ANSI-incompatible system header
# files which are fixed to work correctly with ANSI C and placed in a
# directory that GCC will search.
#
# See README-fixinc for more information.
#
#  fixincludes copyright (c) 1998, 1999, 2000, 2002, 2009
#  The Free Software Foundation, Inc.
#
# fixincludes is free software.
# 
# You may redistribute it and/or modify it under the terms of the
# GNU General Public License, as published by the Free Software
# Foundation; either version 3, or (at your option) any later version.
# 
# fixincludes is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with fixincludes; see the file COPYING3.  If not see
# <http://www.gnu.org/licenses/>.
#
# # # # # # # # # # # # # # # # # # # # #

# Usage: fixinc.sh output-dir input-dir
#
# Directory in which to store the results.
# Fail if no arg to specify a directory for the output.
if [ "x$1" = "x" ]
then
  echo fixincludes: no output directory specified
  exit 1
fi

LIB=${1}
shift

# Make sure it exists.
if [ ! -d $LIB ]; then
  mkdir $LIB || {
    echo fixincludes:  output dir '`'$LIB"' cannot be created"
    exit 1
  }
else
  ( cd $LIB && touch DONE && rm DONE ) || {
    echo fixincludes:  output dir '`'$LIB"' is an invalid directory"
    exit 1
  }
fi

if test -z "$VERBOSE"
then
  VERBOSE=2
  export VERBOSE
else
  case "$VERBOSE" in
  [0-9] ) : ;;
  * )  VERBOSE=3 ;;
  esac
fi

# Define what target system we're fixing.
#
if test -r ./Makefile; then
  target_canonical="`sed -n -e 's,^target[ 	]*=[ 	]*\(.*\)$,\1,p' < Makefile`"
fi

# If not from the Makefile, then try config.guess
#
if test -z "${target_canonical}" ; then
  if test -x ./config.guess ; then
    target_canonical="`config.guess`" ; fi
  test -z "${target_canonical}" && target_canonical=unknown
fi
export target_canonical

# # # # # # # # # # # # # # # # # # # # #
#
# Define PWDCMD as a command to use to get the working dir
# in the form that we want.
PWDCMD=${PWDCMD-pwd}

case "`$PWDCMD`" in
//*)
    # On an Apollo, discard everything before `/usr'.
    PWDCMD="eval pwd | sed -e 's,.*/usr/,/usr/,'"
    ;;
esac

# Original directory.
ORIGDIR=`${PWDCMD}`
export ORIGDIR
FIXINCL=`${PWDCMD}`/fixincl
if [ ! -x $FIXINCL ] ; then
  echo "Cannot find fixincl" >&2
  exit 1
fi
export FIXINCL

# Make LIB absolute only if needed to avoid problems with the amd.
case $LIB in
/*)
    ;;
*)
    cd $LIB; LIB=`${PWDCMD}`
    ;;
esac

if test $VERBOSE -gt 0
then echo Fixing headers into ${LIB} for ${target_canonical} target ; fi

# Determine whether this system has symbolic links.
if test -n "$DJDIR"; then
  LINKS=false
elif ln -s X $LIB/ShouldNotExist 2>/dev/null; then
  rm -f $LIB/ShouldNotExist
  LINKS=true
elif ln -s X /tmp/ShouldNotExist 2>/dev/null; then
  rm -f /tmp/ShouldNotExist
  LINKS=true
else
  LINKS=false
fi

# # # # # # # # # # # # # # # # # # # # #
#
#  In the file macro_list are listed all the predefined
#  macros that are not in the C89 reserved namespace (the reserved
#  namespace is all identifiers beginnning with two underscores or one
#  underscore followed by a capital letter).  A regular expression to find
#  any of those macros in a header file is written to MN_NAME_PAT.
#
#  Note dependency on ASCII. \012 = newline.
#  tr ' ' '\n' is, alas, not portable.

if test -s ${MACRO_LIST}
then
  if test $VERBOSE -gt 0; then
    echo "Forbidden identifiers: `tr '\012' ' ' < ${MACRO_LIST}`"
  fi
  MN_NAME_PAT="`sed 's/^/\\\\</; s/$/\\\\>/; $!s/$/|/' \
      < ${MACRO_LIST} | tr -d '\012'`"
  export MN_NAME_PAT
else
  if test $VERBOSE -gt 0
  then echo "No forbidden identifiers defined by this target" ; fi
fi

# # # # # # # # # # # # # # # # # # # # #
#
#  Search each input directory for broken header files.
#  This loop ends near the end of the file.
#
if test $# -eq 0
then
    INPUTLIST="/usr/include"
else
    INPUTLIST="$@"
fi

for INPUT in ${INPUTLIST} ; do

cd ${ORIGDIR}

#  Make sure a directory exists before changing into it,
#  otherwise Solaris2 will fail-exit the script.
#
if [ ! -d ${INPUT} ]; then
  continue
fi
cd ${INPUT}

INPUT=`${PWDCMD}`
export INPUT

#
# # # # # # # # # # # # # # # # # # # # #
#
if test $VERBOSE -gt 1
then echo Finding directories and links to directories ; fi

# Find all directories and all symlinks that point to directories.
# Put the list in $all_dirs.
# Each time we find a symlink, add it to newdirs
# so that we do another find within the dir the link points to.
# Note that $all_dirs may have duplicates in it;
# later parts of this file are supposed to ignore them.
dirs="."
levels=2
all_dirs=""
search_dirs=""

while [ -n "$dirs" ] && [ $levels -gt 0 ]
do
  levels=`expr $levels - 1`
  newdirs=
  for d in $dirs
  do
    if test $VERBOSE -gt 1
    then echo " Searching $INPUT/$d" ; fi

    # Find all directories under $d, relative to $d, excluding $d itself.
    # (The /. is needed after $d in case $d is a symlink.)
    all_dirs="$all_dirs `find $d/. -type d -print | \
               sed -e '/\/\.$/d' -e 's@/./@/@g'`"
    # Find all links to directories.
    # Using `-exec test -d' in find fails on some systems,
    # and trying to run test via sh fails on others,
    # so this is the simplest alternative left.
    # First find all the links, then test each one.
    theselinks=
    $LINKS && \
      theselinks=`find $d/. -type l -print | sed -e 's@/./@/@g'`
    for d1 in $theselinks --dummy--
    do
      # If the link points to a directory,
      # add that dir to $newdirs
      if [ -d $d1 ]
      then
        all_dirs="$all_dirs $d1"
        if [ "`ls -ld $d1 | sed -n 's/.*-> //p'`" != "." ]
        then
          newdirs="$newdirs $d1"
          search_dirs="$search_dirs $d1"
        fi
      fi
    done
  done

  dirs="$newdirs"
done

# # # # # # # # # # # # # # # # # # # # #
#
dirs=
if test $VERBOSE -gt 2
then echo "All directories (including links to directories):"
     echo $all_dirs
fi

for file in $all_dirs; do
  rm -rf $LIB/$file
  if [ ! -d $LIB/$file ]
  then mkdir $LIB/$file
  fi
done
mkdir $LIB/root

# # # # # # # # # # # # # # # # # # # # #
#
# treetops gets an alternating list
# of old directories to copy
# and the new directories to copy to.
treetops=". ${LIB}"

if $LINKS; then
  if test $VERBOSE -gt 1
  then echo 'Making symbolic directory links' ; fi
  cwd=`${PWDCMD}`

  for sym_link in $search_dirs; do
    cd ${INPUT}
    dest=`ls -ld ${sym_link} | sed -n 's/.*-> //p'`

    # In case $dest is relative, get to ${sym_link}'s dir first.
    #
    cd ./`echo ${sym_link} | sed 's;/[^/]*$;;'`

    # Check that the target directory exists.
    # Redirections changed to avoid bug in sh on Ultrix.
    #
    (cd $dest) > /dev/null 2>&1
    if [ $? = 0 ]; then
      cd $dest

      # full_dest_dir gets the dir that the link actually leads to.
      #
      full_dest_dir=`${PWDCMD}`

      # Canonicalize ${INPUT} now to minimize the time an
      # automounter has to change the result of ${PWDCMD}.
      #
      cinput=`cd ${INPUT}; ${PWDCMD}`

      # If a link points to ., make a similar link to .
      #
      if [ ${full_dest_dir} = ${cinput} ]; then
        if test $VERBOSE -gt 2
        then echo ${sym_link} '->' . ': Making self link' ; fi
        rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
        ln -s . ${LIB}/${sym_link} > /dev/null 2>&1

      # If link leads back into ${INPUT},
      # make a similar link here.
      #
      elif expr ${full_dest_dir} : "${cinput}/.*" > /dev/null; then
        # Y gets the actual target dir name, relative to ${INPUT}.
        y=`echo ${full_dest_dir} | sed -n "s&${cinput}/&&p"`
        # DOTS is the relative path from ${LIB}/${sym_link} back to ${LIB}.
        dots=`echo "${sym_link}" |
          sed -e 's@^./@@' -e 's@/./@/@g' -e 's@[^/][^/]*@..@g' -e 's@..$@@'`
        if test $VERBOSE -gt 2
        then echo ${sym_link} '->' $dots$y ': Making local link' ; fi
        rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
        ln -s $dots$y ${LIB}/${sym_link} > /dev/null 2>&1

      else
        # If the link is to a dir $target outside ${INPUT},
        # repoint the link at ${INPUT}/root$target
        # and process $target into ${INPUT}/root$target
        # treat this directory as if it actually contained the files.
        #
        if test $VERBOSE -gt 2
        then echo ${sym_link} '->' root${full_dest_dir} ': Making rooted link'
        fi
        if [ -d $LIB/root${full_dest_dir} ]
        then true
        else
          dirname=root${full_dest_dir}/
          dirmade=.
          cd $LIB
          while [ x$dirname != x ]; do
            component=`echo $dirname | sed -e 's|/.*$||'`
            mkdir $component >/dev/null 2>&1
            cd $component
            dirmade=$dirmade/$component
            dirname=`echo $dirname | sed -e 's|[^/]*/||'`
          done
        fi

        # Duplicate directory structure created in ${LIB}/${sym_link} in new
        # root area.
        #
        for file2 in $all_dirs; do
          case $file2 in
            ${sym_link}/*)
              dupdir=${LIB}/root${full_dest_dir}/`echo $file2 |
                      sed -n "s|^${sym_link}/||p"`
              if test $VERBOSE -gt 2
              then echo "Duplicating ${sym_link}'s ${dupdir}" ; fi
              if [ -d ${dupdir} ]
              then true
              else
                mkdir ${dupdir}
              fi
              ;;
            *)
              ;;
          esac
        done

        # Get the path from ${LIB} to ${sym_link}, accounting for symlinks.
        #
        parent=`echo "${sym_link}" | sed -e 's@/[^/]*$@@'`
        libabs=`cd ${LIB}; ${PWDCMD}`
        file2=`cd ${LIB}; cd $parent; ${PWDCMD} | sed -e "s@^${libabs}@@"`

        # DOTS is the relative path from ${LIB}/${sym_link} back to ${LIB}.
        #
        dots=`echo "$file2" | sed -e 's@/[^/]*@../@g'`
        rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
        ln -s ${dots}root${full_dest_dir} ${LIB}/${sym_link} > /dev/null 2>&1
        treetops="$treetops ${sym_link} ${LIB}/root${full_dest_dir}"
      fi
    fi
  done
fi

# # # # # # # # # # # # # # # # # # # # #
#
required=
set x $treetops
shift
while [ $# != 0 ]; do
  # $1 is an old directory to copy, and $2 is the new directory to copy to.
  #
  SRCDIR=`cd ${INPUT} ; cd $1 ; ${PWDCMD}`
  export SRCDIR

  FIND_BASE=$1
  export FIND_BASE
  shift

  DESTDIR=`cd $1;${PWDCMD}`
  export DESTDIR
  shift

  # The same dir can appear more than once in treetops.
  # There's no need to scan it more than once.
  #
  if [ -f ${DESTDIR}/DONE ]
  then continue ; fi

  touch ${DESTDIR}/DONE
  if test $VERBOSE -gt 1
  then echo Fixing directory ${SRCDIR} into ${DESTDIR} ; fi

  # Check files which are symlinks as well as those which are files.
  #
  cd ${INPUT}
  required="$required `if $LINKS; then
    find ${FIND_BASE}/. -name '*.h' \( -type f -o -type l \) -print
  else
    find ${FIND_BASE}/. -name '*.h' -type f -print
  fi | \
    sed -e 's;/\./;/;g' -e 's;//*;/;g' | \
    ${FIXINCL}`"
done

## Make sure that any include files referenced using double quotes
## exist in the fixed directory.  This comes last since otherwise
## we might end up deleting some of these files "because they don't
## need any change."
set x `echo $required`
shift
while [ $# != 0 ]; do
  newreq=
  while [ $# != 0 ]; do
    # $1 is the directory to copy from,
    # $2 is the unfixed file,
    # $3 is the fixed file name.
    #
    cd ${INPUT}
    cd $1
    if [ -f $2 ] ; then
      if [ -r $2 ] && [ ! -r $3 ]; then
        cp $2 $3 >/dev/null 2>&1 || echo "Can't copy $2" >&2
        chmod +w $3 2>/dev/null
        chmod a+r $3 2>/dev/null
        if test $VERBOSE -gt 2
        then echo Copied $2 ; fi
        for include in `egrep '^[ 	]*#[ 	]*include[ 	]*"[^/]' $3 |
             sed -e 's/^[ 	]*#[ 	]*include[ 	]*"\([^"]*\)".*$/\1/'`
        do
	  dir=`echo $2 | sed -e s'|/[^/]*$||'`
	  dir2=`echo $3 | sed -e s'|/[^/]*$||'`
	  newreq="$newreq $1 $dir/$include $dir2/$include"
        done
      fi
    fi
    shift; shift; shift
  done
  set x $newreq
  shift
done

if test $VERBOSE -gt 2
then echo 'Cleaning up DONE files.' ; fi
cd $LIB
# Look for files case-insensitively, for the benefit of
# DOS/Windows filesystems.
find . -name '[Dd][Oo][Nn][Ee]' -exec rm -f '{}' ';'

if test $VERBOSE -gt 1
then echo 'Cleaning up unneeded directories:' ; fi
cd $LIB
all_dirs=`find . -type d \! -name '.' -print | sort -r`
for file in $all_dirs; do
  if rmdir $LIB/$file > /dev/null
  then
    test $VERBOSE -gt 3 && echo "  removed $file"
  fi
done 2> /dev/null

# On systems which don't support symlinks, `find' may barf
# if called with "-type l" predicate.  So only use that if
# we know we should look for symlinks.
if $LINKS; then
  test $VERBOSE -gt 2 && echo "Removing unused symlinks"

  all_dirs=`find . -type l -print`
  for file in $all_dirs
  do
    if test ! -d $file
    then
      rm -f $file
      test $VERBOSE -gt 3 && echo "  removed $file"
      rmdir `dirname $file` > /dev/null && \
           test $VERBOSE -gt 3 && \
           echo "  removed `dirname $file`"
    fi
  done 2> /dev/null
fi

if test $VERBOSE -gt 0
then echo fixincludes is done ; fi

# # # # # # # # # # # # # # # # # # # # #
#
# End of for INPUT directories
#
done
#
# # # # # # # # # # # # # # # # # # # # #