Retro68/gcc/fixincludes/fixinc.in
2022-10-27 20:55:19 +02:00

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#!/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 -p $LIB || {
echo fixincludes: output dir '`'$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 $LIB/ShouldNotExist
LINKS=true
elif ln -s X /tmp/ShouldNotExist 2>/dev/null; then
rm -f /tmp/ShouldNotExist
LINKS=true
else
LINKS=false
fi
# # # # # # # # # # # # # # # # # # # # #
#
# Check to see if the machine_name fix needs to be disabled.
#
# On some platforms, machine_name doesn't work properly and
# breaks some of the header files. Since everything works
# properly without it, just wipe the macro list to
# disable the fix.
case "${target_canonical}" in
*-*-vxworks* | powerpc*-*-linux*)
test -f ${MACRO_LIST} && echo > ${MACRO_LIST}
;;
esac
# # # # # # # # # # # # # # # # # # # # #
#
# 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 $all_dirs
fi
OLDDIR=`${PWDCMD}`
cd $LIB
echo "$all_dirs" | xargs mkdir -p
cd ${OLDDIR}
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
#
# # # # # # # # # # # # # # # # # # # # #