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
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# Usage: fixincl.sh output-dir input-dir
32#
33# Directory in which to store the results.
34# Fail if no arg to specify a directory for the output.
35if [ "x$1" = "x" ]
36then
37  echo fixincludes: no output directory specified
38  exit 1
39fi
40
41LIB=${1}
42shift
43
44# Make sure it exists.
45if [ ! -d $LIB ]; then
46  mkdir $LIB || {
47    echo fixincludes:  output dir '`'$LIB"' cannot be created"
48    exit 1
49  }
50else
51  ( cd $LIB && touch DONE && rm DONE ) || {
52    echo fixincludes:  output dir '`'$LIB"' is an invalid directory"
53    exit 1
54  }
55fi
56
57if test -z "$VERBOSE"
58then
59  VERBOSE=2
60  export VERBOSE
61else
62  case "$VERBOSE" in
63  [0-9] ) : ;;
64  * )  VERBOSE=3 ;;
65  esac
66fi
67
68# Define what target system we're fixing.
69#
70if test -r ./Makefile; then
71  target_canonical="`sed -n -e 's,^target[ 	]*=[ 	]*\(.*\)$,\1,p' < Makefile`"
72fi
73
74# If not from the Makefile, then try config.guess
75#
76if test -z "${target_canonical}" ; then
77  if test -x ./config.guess ; then
78    target_canonical="`config.guess`" ; fi
79  test -z "${target_canonical}" && target_canonical=unknown
80fi
81export target_canonical
82
83# # # # # # # # # # # # # # # # # # # # #
84#
85# Define PWDCMD as a command to use to get the working dir
86# in the form that we want.
87PWDCMD=${PWDCMD-pwd}
88
89case "`$PWDCMD`" in
90//*)
91    # On an Apollo, discard everything before `/usr'.
92    PWDCMD="eval pwd | sed -e 's,.*/usr/,/usr/,'"
93    ;;
94esac
95
96# Original directory.
97ORIGDIR=`${PWDCMD}`
98export ORIGDIR
99FIXINCL=${ORIGDIR}/fixinc/fixincl
100if [ ! -x $FIXINCL ] ; then
101  FIXINCL=${ORIGDIR}/fixincl
102  if [ ! -x $FIXINCL ] ; then
103    echo "Cannot find working fixincl" >&2
104    exit 1
105  fi
106fi
107export FIXINCL
108
109# Make LIB absolute only if needed to avoid problems with the amd.
110case $LIB in
111/*)
112    ;;
113*)
114    cd $LIB; LIB=`${PWDCMD}`
115    ;;
116esac
117
118if test $VERBOSE -gt 0
119then echo Fixing headers into ${LIB} for ${target_canonical} target ; fi
120
121# Determine whether this system has symbolic links.
122if test -n "$DJDIR"; then
123  LINKS=false
124elif ln -s X $LIB/ShouldNotExist 2>/dev/null; then
125  rm -f $LIB/ShouldNotExist
126  LINKS=true
127elif ln -s X /tmp/ShouldNotExist 2>/dev/null; then
128  rm -f /tmp/ShouldNotExist
129  LINKS=true
130else
131  LINKS=false
132fi
133
134# # # # # # # # # # # # # # # # # # # # #
135#
136#  Search each input directory for broken header files.
137#  This loop ends near the end of the file.
138#
139if test $# -eq 0
140then
141    INPUTLIST="/usr/include"
142else
143    INPUTLIST="$@"
144fi
145
146for INPUT in ${INPUTLIST} ; do
147
148cd ${ORIGDIR}
149
150#  Make sure a directory exists before changing into it,
151#  otherwise Solaris2 will fail-exit the script.
152#
153if [ ! -d ${INPUT} ]; then
154  continue
155fi
156cd ${INPUT}
157
158INPUT=`${PWDCMD}`
159export INPUT
160
161#
162# # # # # # # # # # # # # # # # # # # # #
163#
164if test $VERBOSE -gt 1
165then echo Finding directories and links to directories ; fi
166
167# Find all directories and all symlinks that point to directories.
168# Put the list in $all_dirs.
169# Each time we find a symlink, add it to newdirs
170# so that we do another find within the dir the link points to.
171# Note that $all_dirs may have duplicates in it;
172# later parts of this file are supposed to ignore them.
173dirs="."
174levels=2
175all_dirs=""
176search_dirs=""
177
178while [ -n "$dirs" ] && [ $levels -gt 0 ]
179do
180  levels=`expr $levels - 1`
181  newdirs=
182  for d in $dirs
183  do
184    if test $VERBOSE -gt 1
185    then echo " Searching $INPUT/$d" ; fi
186
187    # Find all directories under $d, relative to $d, excluding $d itself.
188    # (The /. is needed after $d in case $d is a symlink.)
189    all_dirs="$all_dirs `find $d/. -type d -print | \
190               sed -e '/\/\.$/d' -e 's@/./@/@g'`"
191    # Find all links to directories.
192    # Using `-exec test -d' in find fails on some systems,
193    # and trying to run test via sh fails on others,
194    # so this is the simplest alternative left.
195    # First find all the links, then test each one.
196    theselinks=
197    $LINKS && \
198      theselinks=`find $d/. -type l -print | sed -e 's@/./@/@g'`
199    for d1 in $theselinks --dummy--
200    do
201      # If the link points to a directory,
202      # add that dir to $newdirs
203      if [ -d $d1 ]
204      then
205        all_dirs="$all_dirs $d1"
206        if [ "`ls -ld $d1 | sed -n 's/.*-> //p'`" != "." ]
207        then
208          newdirs="$newdirs $d1"
209          search_dirs="$search_dirs $d1"
210        fi
211      fi
212    done
213  done
214
215  dirs="$newdirs"
216done
217
218# # # # # # # # # # # # # # # # # # # # #
219#
220dirs=
221if test $VERBOSE -gt 2
222then echo "All directories (including links to directories):"
223     echo $all_dirs
224fi
225
226for file in $all_dirs; do
227  rm -rf $LIB/$file
228  if [ ! -d $LIB/$file ]
229  then mkdir $LIB/$file
230  fi
231done
232mkdir $LIB/root
233
234# # # # # # # # # # # # # # # # # # # # #
235#
236# treetops gets an alternating list
237# of old directories to copy
238# and the new directories to copy to.
239treetops=". ${LIB}"
240
241if $LINKS; then
242  if test $VERBOSE -gt 1
243  then echo 'Making symbolic directory links' ; fi
244  cwd=`${PWDCMD}`
245
246  for sym_link in $search_dirs; do
247    cd ${INPUT}
248    dest=`ls -ld ${sym_link} | sed -n 's/.*-> //p'`
249
250    # In case $dest is relative, get to ${sym_link}'s dir first.
251    #
252    cd ./`echo ${sym_link} | sed 's;/[^/]*$;;'`
253
254    # Check that the target directory exists.
255    # Redirections changed to avoid bug in sh on Ultrix.
256    #
257    (cd $dest) > /dev/null 2>&1
258    if [ $? = 0 ]; then
259      cd $dest
260
261      # full_dest_dir gets the dir that the link actually leads to.
262      #
263      full_dest_dir=`${PWDCMD}`
264
265      # Canonicalize ${INPUT} now to minimize the time an
266      # automounter has to change the result of ${PWDCMD}.
267      #
268      cinput=`cd ${INPUT}; ${PWDCMD}`
269
270      # If a link points to ., make a similar link to .
271      #
272      if [ ${full_dest_dir} = ${cinput} ]; then
273        if test $VERBOSE -gt 2
274        then echo ${sym_link} '->' . ': Making self link' ; fi
275        rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
276        ln -s . ${LIB}/${sym_link} > /dev/null 2>&1
277
278      # If link leads back into ${INPUT},
279      # make a similar link here.
280      #
281      elif expr ${full_dest_dir} : "${cinput}/.*" > /dev/null; then
282        # Y gets the actual target dir name, relative to ${INPUT}.
283        y=`echo ${full_dest_dir} | sed -n "s&${cinput}/&&p"`
284        # DOTS is the relative path from ${LIB}/${sym_link} back to ${LIB}.
285        dots=`echo "${sym_link}" |
286          sed -e 's@^./@@' -e 's@/./@/@g' -e 's@[^/][^/]*@..@g' -e 's@..$@@'`
287        if test $VERBOSE -gt 2
288        then echo ${sym_link} '->' $dots$y ': Making local link' ; fi
289        rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
290        ln -s $dots$y ${LIB}/${sym_link} > /dev/null 2>&1
291
292      else
293        # If the link is to a dir $target outside ${INPUT},
294        # repoint the link at ${INPUT}/root$target
295        # and process $target into ${INPUT}/root$target
296        # treat this directory as if it actually contained the files.
297        #
298        if test $VERBOSE -gt 2
299        then echo ${sym_link} '->' root${full_dest_dir} ': Making rooted link'
300        fi
301        if [ -d $LIB/root${full_dest_dir} ]
302        then true
303        else
304          dirname=root${full_dest_dir}/
305          dirmade=.
306          cd $LIB
307          while [ x$dirname != x ]; do
308            component=`echo $dirname | sed -e 's|/.*$||'`
309            mkdir $component >/dev/null 2>&1
310            cd $component
311            dirmade=$dirmade/$component
312            dirname=`echo $dirname | sed -e 's|[^/]*/||'`
313          done
314        fi
315
316        # Duplicate directory structure created in ${LIB}/${sym_link} in new
317        # root area.
318        #
319        for file2 in $all_dirs; do
320          case $file2 in
321            ${sym_link}/*)
322              dupdir=${LIB}/root${full_dest_dir}/`echo $file2 |
323                      sed -n "s|^${sym_link}/||p"`
324              if test $VERBOSE -gt 2
325              then echo "Duplicating ${sym_link}'s ${dupdir}" ; fi
326              if [ -d ${dupdir} ]
327              then true
328              else
329                mkdir ${dupdir}
330              fi
331              ;;
332            *)
333              ;;
334          esac
335        done
336
337        # Get the path from ${LIB} to ${sym_link}, accounting for symlinks.
338        #
339        parent=`echo "${sym_link}" | sed -e 's@/[^/]*$@@'`
340        libabs=`cd ${LIB}; ${PWDCMD}`
341        file2=`cd ${LIB}; cd $parent; ${PWDCMD} | sed -e "s@^${libabs}@@"`
342
343        # DOTS is the relative path from ${LIB}/${sym_link} back to ${LIB}.
344        #
345        dots=`echo "$file2" | sed -e 's@/[^/]*@../@g'`
346        rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
347        ln -s ${dots}root${full_dest_dir} ${LIB}/${sym_link} > /dev/null 2>&1
348        treetops="$treetops ${sym_link} ${LIB}/root${full_dest_dir}"
349      fi
350    fi
351  done
352fi
353
354# # # # # # # # # # # # # # # # # # # # #
355#
356required=
357set x $treetops
358shift
359while [ $# != 0 ]; do
360  # $1 is an old directory to copy, and $2 is the new directory to copy to.
361  #
362  SRCDIR=`cd ${INPUT} ; cd $1 ; ${PWDCMD}`
363  export SRCDIR
364
365  FIND_BASE=$1
366  export FIND_BASE
367  shift
368
369  DESTDIR=`cd $1;${PWDCMD}`
370  export DESTDIR
371  shift
372
373  # The same dir can appear more than once in treetops.
374  # There's no need to scan it more than once.
375  #
376  if [ -f ${DESTDIR}/DONE ]
377  then continue ; fi
378
379  touch ${DESTDIR}/DONE
380  if test $VERBOSE -gt 1
381  then echo Fixing directory ${SRCDIR} into ${DESTDIR} ; fi
382
383  # Check files which are symlinks as well as those which are files.
384  #
385  cd ${INPUT}
386  required="$required `if $LINKS; then
387    find ${FIND_BASE}/. -name '*.h' \( -type f -o -type l \) -print
388  else
389    find ${FIND_BASE}/. -name '*.h' -type f -print
390  fi | \
391    sed -e 's;/\./;/;g' -e 's;//*;/;g' | \
392    ${FIXINCL}`"
393done
394
395## Make sure that any include files referenced using double quotes
396## exist in the fixed directory.  This comes last since otherwise
397## we might end up deleting some of these files "because they don't
398## need any change."
399set x `echo $required`
400shift
401while [ $# != 0 ]; do
402  newreq=
403  while [ $# != 0 ]; do
404    # $1 is the directory to copy from,
405    # $2 is the unfixed file,
406    # $3 is the fixed file name.
407    #
408    cd ${INPUT}
409    cd $1
410    if [ -f $2 ] ; then
411      if [ -r $2 ] && [ ! -r $3 ]; then
412        cp $2 $3 >/dev/null 2>&1 || echo "Can't copy $2" >&2
413        chmod +w $3 2>/dev/null
414        chmod a+r $3 2>/dev/null
415        if test $VERBOSE -gt 2
416        then echo Copied $2 ; fi
417        for include in `egrep '^[ 	]*#[ 	]*include[ 	]*"[^/]' $3 |
418             sed -e 's/^[ 	]*#[ 	]*include[ 	]*"\([^"]*\)".*$/\1/'`
419        do
420	  dir=`echo $2 | sed -e s'|/[^/]*$||'`
421	  dir2=`echo $3 | sed -e s'|/[^/]*$||'`
422	  newreq="$newreq $1 $dir/$include $dir2/$include"
423        done
424      fi
425    fi
426    shift; shift; shift
427  done
428  set x $newreq
429  shift
430done
431
432if test $VERBOSE -gt 2
433then echo 'Cleaning up DONE files.' ; fi
434cd $LIB
435# Look for files case-insensitively, for the benefit of
436# DOS/Windows filesystems.
437find . -name '[Dd][Oo][Nn][Ee]' -exec rm -f '{}' ';'
438
439if test $VERBOSE -gt 1
440then echo 'Cleaning up unneeded directories:' ; fi
441cd $LIB
442all_dirs=`find . -type d \! -name '.' -print | sort -r`
443for file in $all_dirs; do
444  if rmdir $LIB/$file > /dev/null
445  then
446    test $VERBOSE -gt 3 && echo "  removed $file"
447  fi
448done 2> /dev/null
449
450# On systems which don't support symlinks, `find' may barf
451# if called with "-type l" predicate.  So only use that if
452# we know we should look for symlinks.
453if $LINKS; then
454  test $VERBOSE -gt 2 && echo "Removing unused symlinks"
455
456  all_dirs=`find . -type l -print`
457  for file in $all_dirs
458  do
459    if test ! -d $file
460    then
461      rm -f $file
462      test $VERBOSE -gt 3 && echo "  removed $file"
463      rmdir `dirname $file` > /dev/null && \
464           test $VERBOSE -gt 3 && \
465           echo "  removed `dirname $file`"
466    fi
467  done 2> /dev/null
468fi
469
470if test $VERBOSE -gt 0
471then echo fixincludes is done ; fi
472
473# # # # # # # # # # # # # # # # # # # # #
474#
475# End of for INPUT directories
476#
477done
478#
479# # # # # # # # # # # # # # # # # # # # #
480