Daily bump.
[official-gcc.git] / fixincludes / fixinc.in
blob0bd8027a55492bf77353227db56447cabd93a71e
1 #!/bin/sh
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.
7 # See README-fixinc for more information.
9 # fixincludes copyright (c) 1998, 1999, 2000, 2002, 2009
10 # The Free Software Foundation, Inc.
12 # fixincludes is free software.
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.
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.
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/>.
27 # # # # # # # # # # # # # # # # # # # # #
29 # Usage: fixinc.sh output-dir input-dir
31 # Directory in which to store the results.
32 # Fail if no arg to specify a directory for the output.
33 if [ "x$1" = "x" ]
34 then
35 echo fixincludes: no output directory specified
36 exit 1
39 LIB=${1}
40 shift
42 # Make sure it exists.
43 if [ ! -d $LIB ]; then
44 mkdir -p $LIB || {
45 echo fixincludes: output dir '`'$LIB"' cannot be created"
46 exit 1
48 else
49 ( cd $LIB && touch DONE && rm DONE ) || {
50 echo fixincludes: output dir '`'$LIB"' is an invalid directory"
51 exit 1
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
66 # Define what target system we're fixing.
68 if test -r ./Makefile; then
69 target_canonical="`sed -n -e 's,^target[ ]*=[ ]*\(.*\)$,\1,p' < Makefile`"
72 # If not from the Makefile, then try config.guess
74 if test -z "${target_canonical}" ; then
75 if test -x ./config.guess ; then
76 target_canonical="`config.guess`" ; fi
77 test -z "${target_canonical}" && target_canonical=unknown
79 export target_canonical
81 # # # # # # # # # # # # # # # # # # # # #
83 # Define PWDCMD as a command to use to get the working dir
84 # in the form that we want.
85 PWDCMD=${PWDCMD-pwd}
87 case "`$PWDCMD`" in
88 //*)
89 # On an Apollo, discard everything before `/usr'.
90 PWDCMD="eval pwd | sed -e 's,.*/usr/,/usr/,'"
92 esac
94 # Original directory.
95 ORIGDIR=`${PWDCMD}`
96 export ORIGDIR
97 FIXINCL=`${PWDCMD}`/fixincl
98 if [ ! -x $FIXINCL ] ; then
99 echo "Cannot find fixincl" >&2
100 exit 1
102 export FIXINCL
104 # Make LIB absolute only if needed to avoid problems with the amd.
105 case $LIB in
109 cd $LIB; LIB=`${PWDCMD}`
111 esac
113 if test $VERBOSE -gt 0
114 then echo Fixing headers into ${LIB} for ${target_canonical} target ; fi
116 # Determine whether this system has symbolic links.
117 if test -n "$DJDIR"; then
118 LINKS=false
119 elif ln -s X $LIB/ShouldNotExist 2>/dev/null; then
120 rm -f $LIB/ShouldNotExist
121 LINKS=true
122 elif ln -s X /tmp/ShouldNotExist 2>/dev/null; then
123 rm -f /tmp/ShouldNotExist
124 LINKS=true
125 else
126 LINKS=false
129 # # # # # # # # # # # # # # # # # # # # #
131 # Check to see if the machine_name fix needs to be disabled.
133 # On some platforms, machine_name doesn't work properly and
134 # breaks some of the header files. Since everything works
135 # properly without it, just wipe the macro list to
136 # disable the fix.
138 case "${target_canonical}" in
139 *-*-vxworks* | powerpc*-*-linux*)
140 test -f ${MACRO_LIST} && echo > ${MACRO_LIST}
142 esac
145 # # # # # # # # # # # # # # # # # # # # #
147 # In the file macro_list are listed all the predefined
148 # macros that are not in the C89 reserved namespace (the reserved
149 # namespace is all identifiers beginnning with two underscores or one
150 # underscore followed by a capital letter). A regular expression to find
151 # any of those macros in a header file is written to MN_NAME_PAT.
153 # Note dependency on ASCII. \012 = newline.
154 # tr ' ' '\n' is, alas, not portable.
156 if test -s ${MACRO_LIST}
157 then
158 if test $VERBOSE -gt 0; then
159 echo "Forbidden identifiers: `tr '\012' ' ' < ${MACRO_LIST}`"
161 MN_NAME_PAT="`sed 's/^/\\\\</; s/$/\\\\>/; $!s/$/|/' \
162 < ${MACRO_LIST} | tr -d '\012'`"
163 export MN_NAME_PAT
164 else
165 if test $VERBOSE -gt 0
166 then echo "No forbidden identifiers defined by this target" ; fi
169 # # # # # # # # # # # # # # # # # # # # #
171 # Search each input directory for broken header files.
172 # This loop ends near the end of the file.
174 if test $# -eq 0
175 then
176 INPUTLIST="/usr/include"
177 else
178 INPUTLIST="$@"
181 for INPUT in ${INPUTLIST} ; do
183 cd ${ORIGDIR}
185 # Make sure a directory exists before changing into it,
186 # otherwise Solaris2 will fail-exit the script.
188 if [ ! -d ${INPUT} ]; then
189 continue
191 cd ${INPUT}
193 INPUT=`${PWDCMD}`
194 export INPUT
197 # # # # # # # # # # # # # # # # # # # # #
199 if test $VERBOSE -gt 1
200 then echo Finding directories and links to directories ; fi
202 # Find all directories and all symlinks that point to directories.
203 # Put the list in $all_dirs.
204 # Each time we find a symlink, add it to newdirs
205 # so that we do another find within the dir the link points to.
206 # Note that $all_dirs may have duplicates in it;
207 # later parts of this file are supposed to ignore them.
208 dirs="."
209 levels=2
210 all_dirs=""
211 search_dirs=""
213 while [ -n "$dirs" ] && [ $levels -gt 0 ]
215 levels=`expr $levels - 1`
216 newdirs=
217 for d in $dirs
219 if test $VERBOSE -gt 1
220 then echo " Searching $INPUT/$d" ; fi
222 # Find all directories under $d, relative to $d, excluding $d itself.
223 # (The /. is needed after $d in case $d is a symlink.)
224 all_dirs="$all_dirs `find $d/. -type d -print | \
225 sed -e '/\/\.$/d' -e 's@/./@/@g'`"
226 # Find all links to directories.
227 # Using `-exec test -d' in find fails on some systems,
228 # and trying to run test via sh fails on others,
229 # so this is the simplest alternative left.
230 # First find all the links, then test each one.
231 theselinks=
232 $LINKS && \
233 theselinks=`find $d/. -type l -print | sed -e 's@/./@/@g'`
234 for d1 in $theselinks --dummy--
236 # If the link points to a directory,
237 # add that dir to $newdirs
238 if [ -d $d1 ]
239 then
240 all_dirs="$all_dirs $d1"
241 if [ "`ls -ld $d1 | sed -n 's/.*-> //p'`" != "." ]
242 then
243 newdirs="$newdirs $d1"
244 search_dirs="$search_dirs $d1"
247 done
248 done
250 dirs="$newdirs"
251 done
253 # # # # # # # # # # # # # # # # # # # # #
255 dirs=
256 if test $VERBOSE -gt 2
257 then echo "All directories (including links to directories):"
258 echo $all_dirs
261 OLDDIR=`${PWDCMD}`
262 cd $LIB
263 echo "$all_dirs" | xargs mkdir -p
264 cd ${OLDDIR}
266 mkdir $LIB/root
268 # # # # # # # # # # # # # # # # # # # # #
270 # treetops gets an alternating list
271 # of old directories to copy
272 # and the new directories to copy to.
273 treetops=". ${LIB}"
275 if $LINKS; then
276 if test $VERBOSE -gt 1
277 then echo 'Making symbolic directory links' ; fi
278 cwd=`${PWDCMD}`
280 for sym_link in $search_dirs; do
281 cd ${INPUT}
282 dest=`ls -ld ${sym_link} | sed -n 's/.*-> //p'`
284 # In case $dest is relative, get to ${sym_link}'s dir first.
286 cd ./`echo ${sym_link} | sed 's;/[^/]*$;;'`
288 # Check that the target directory exists.
289 # Redirections changed to avoid bug in sh on Ultrix.
291 (cd $dest) > /dev/null 2>&1
292 if [ $? = 0 ]; then
293 cd $dest
295 # full_dest_dir gets the dir that the link actually leads to.
297 full_dest_dir=`${PWDCMD}`
299 # Canonicalize ${INPUT} now to minimize the time an
300 # automounter has to change the result of ${PWDCMD}.
302 cinput=`cd ${INPUT}; ${PWDCMD}`
304 # If a link points to ., make a similar link to .
306 if [ ${full_dest_dir} = ${cinput} ]; then
307 if test $VERBOSE -gt 2
308 then echo ${sym_link} '->' . ': Making self link' ; fi
309 rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
310 ln -s . ${LIB}/${sym_link} > /dev/null 2>&1
312 # If link leads back into ${INPUT},
313 # make a similar link here.
315 elif expr ${full_dest_dir} : "${cinput}/.*" > /dev/null; then
316 # Y gets the actual target dir name, relative to ${INPUT}.
317 y=`echo ${full_dest_dir} | sed -n "s&${cinput}/&&p"`
318 # DOTS is the relative path from ${LIB}/${sym_link} back to ${LIB}.
319 dots=`echo "${sym_link}" |
320 sed -e 's@^./@@' -e 's@/./@/@g' -e 's@[^/][^/]*@..@g' -e 's@..$@@'`
321 if test $VERBOSE -gt 2
322 then echo ${sym_link} '->' $dots$y ': Making local link' ; fi
323 rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
324 ln -s $dots$y ${LIB}/${sym_link} > /dev/null 2>&1
326 else
327 # If the link is to a dir $target outside ${INPUT},
328 # repoint the link at ${INPUT}/root$target
329 # and process $target into ${INPUT}/root$target
330 # treat this directory as if it actually contained the files.
332 if test $VERBOSE -gt 2
333 then echo ${sym_link} '->' root${full_dest_dir} ': Making rooted link'
335 if [ -d $LIB/root${full_dest_dir} ]
336 then true
337 else
338 dirname=root${full_dest_dir}/
339 dirmade=.
340 cd $LIB
341 while [ x$dirname != x ]; do
342 component=`echo $dirname | sed -e 's|/.*$||'`
343 mkdir $component >/dev/null 2>&1
344 cd $component
345 dirmade=$dirmade/$component
346 dirname=`echo $dirname | sed -e 's|[^/]*//*||'`
347 done
350 # Duplicate directory structure created in ${LIB}/${sym_link} in new
351 # root area.
353 for file2 in $all_dirs; do
354 case $file2 in
355 ${sym_link}/*)
356 dupdir=${LIB}/root${full_dest_dir}/`echo $file2 |
357 sed -n "s|^${sym_link}/||p"`
358 if test $VERBOSE -gt 2
359 then echo "Duplicating ${sym_link}'s ${dupdir}" ; fi
360 if [ -d ${dupdir} ]
361 then true
362 else
363 mkdir ${dupdir}
368 esac
369 done
371 # Get the path from ${LIB} to ${sym_link}, accounting for symlinks.
373 parent=`echo "${sym_link}" | sed -e 's@/[^/]*$@@'`
374 libabs=`cd ${LIB}; ${PWDCMD}`
375 file2=`cd ${LIB}; cd $parent; ${PWDCMD} | sed -e "s@^${libabs}@@"`
377 # DOTS is the relative path from ${LIB}/${sym_link} back to ${LIB}.
379 dots=`echo "$file2" | sed -e 's@/[^/]*@../@g'`
380 rm -fr ${LIB}/${sym_link} > /dev/null 2>&1
381 ln -s ${dots}root${full_dest_dir} ${LIB}/${sym_link} > /dev/null 2>&1
382 treetops="$treetops ${sym_link} ${LIB}/root${full_dest_dir}"
385 done
388 # # # # # # # # # # # # # # # # # # # # #
390 required=
391 set x $treetops
392 shift
393 while [ $# != 0 ]; do
394 # $1 is an old directory to copy, and $2 is the new directory to copy to.
396 SRCDIR=`cd ${INPUT} ; cd $1 ; ${PWDCMD}`
397 export SRCDIR
399 FIND_BASE=$1
400 export FIND_BASE
401 shift
403 DESTDIR=`cd $1;${PWDCMD}`
404 export DESTDIR
405 shift
407 # The same dir can appear more than once in treetops.
408 # There's no need to scan it more than once.
410 if [ -f ${DESTDIR}/DONE ]
411 then continue ; fi
413 touch ${DESTDIR}/DONE
414 if test $VERBOSE -gt 1
415 then echo Fixing directory ${SRCDIR} into ${DESTDIR} ; fi
417 # Check files which are symlinks as well as those which are files.
419 cd ${INPUT}
420 required="$required `if $LINKS; then
421 find ${FIND_BASE}/. -name '*.h' \( -type f -o -type l \) -print
422 else
423 find ${FIND_BASE}/. -name '*.h' -type f -print
424 fi | \
425 sed -e 's;/\./;/;g' -e 's;//*;/;g' | \
426 ${FIXINCL}`"
427 done
429 ## Make sure that any include files referenced using double quotes
430 ## exist in the fixed directory. This comes last since otherwise
431 ## we might end up deleting some of these files "because they don't
432 ## need any change."
433 set x `echo $required`
434 shift
435 while [ $# != 0 ]; do
436 newreq=
437 while [ $# != 0 ]; do
438 # $1 is the directory to copy from,
439 # $2 is the unfixed file,
440 # $3 is the fixed file name.
442 cd ${INPUT}
443 cd $1
444 if [ -f $2 ] ; then
445 if [ -r $2 ] && [ ! -r $3 ]; then
446 cp $2 $3 >/dev/null 2>&1 || echo "Can't copy $2" >&2
447 chmod +w $3 2>/dev/null
448 chmod a+r $3 2>/dev/null
449 if test $VERBOSE -gt 2
450 then echo Copied $2 ; fi
451 for include in `egrep '^[ ]*#[ ]*include[ ]*"[^/]' $3 |
452 sed -e 's/^[ ]*#[ ]*include[ ]*"\([^"]*\)".*$/\1/'`
454 dir=`echo $2 | sed -e s'|/[^/]*$||'`
455 dir2=`echo $3 | sed -e s'|/[^/]*$||'`
456 newreq="$newreq $1 $dir/$include $dir2/$include"
457 done
460 shift; shift; shift
461 done
462 set x $newreq
463 shift
464 done
466 if test $VERBOSE -gt 2
467 then echo 'Cleaning up DONE files.' ; fi
468 cd $LIB
469 # Look for files case-insensitively, for the benefit of
470 # DOS/Windows filesystems.
471 find . -name '[Dd][Oo][Nn][Ee]' -exec rm -f '{}' ';'
473 if test $VERBOSE -gt 1
474 then echo 'Cleaning up unneeded directories:' ; fi
475 cd $LIB
476 all_dirs=`find . -type d \! -name '.' -print | sort -r`
477 for file in $all_dirs; do
478 if rmdir $LIB/$file > /dev/null
479 then
480 test $VERBOSE -gt 3 && echo " removed $file"
482 done 2> /dev/null
484 # On systems which don't support symlinks, `find' may barf
485 # if called with "-type l" predicate. So only use that if
486 # we know we should look for symlinks.
487 if $LINKS; then
488 test $VERBOSE -gt 2 && echo "Removing unused symlinks"
490 all_dirs=`find . -type l -print`
491 for file in $all_dirs
493 if test ! -d $file
494 then
495 rm -f $file
496 test $VERBOSE -gt 3 && echo " removed $file"
497 rmdir `dirname $file` > /dev/null && \
498 test $VERBOSE -gt 3 && \
499 echo " removed `dirname $file`"
501 done 2> /dev/null
504 if test $VERBOSE -gt 0
505 then echo fixincludes is done ; fi
507 # # # # # # # # # # # # # # # # # # # # #
509 # End of for INPUT directories
511 done
513 # # # # # # # # # # # # # # # # # # # # #