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fixinc.sco
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1994-05-26
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#! /bin/sh
#
# fixinc.sco -- Install modified versions of SCO system include
# files.
#
# Based on fixinc.svr4 script by Ron Guilmette (rfg@ncd.com) (SCO
# modifications by Ian Lance Taylor (ian@airs.com)).
#
# This file is part of GNU CC.
#
# GNU CC is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# GNU CC 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 GNU CC; see the file COPYING. If not, write to
# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
#
# This script munges the native include files provided with SCO
# 3.2v4 systems so as to provide a reasonable namespace when
# compiling with gcc. The header files by default do not
# provide many essential definitions and declarations if
# __STDC__ is 1. This script modifies the header files to check
# for __STRICT_ANSI__ being defined instead. Once munged, the
# resulting new system include files are placed in a directory
# that GNU C will search *before* searching the /usr/include
# directory. This script should work properly for most SCO
# 3.2v4 systems. For other types of systems, you should use the
# `fixincludes' or the `fixinc.svr4' script instead.
#
# See README-fixinc for more information.
# Directory containing the original header files.
INPUT=${2-${INPUT-/usr/include}}
# Fail if no arg to specify a directory for the output.
if [ x$1 = x ]
then echo fixincludes: no output directory specified
exit 1
fi
# Directory in which to store the results.
LIB=${1?"fixincludes: output directory not specified"}
# Make sure it exists.
if [ ! -d $LIB ]; then
mkdir $LIB || exit 1
fi
ORIG_DIR=`pwd`
# Make LIB absolute if it is relative.
# Don't do this if not necessary, since may screw up automounters.
case $LIB in
/*)
;;
*)
cd $LIB; LIB=`${PWDCMD-pwd}`
;;
esac
echo 'Building fixincludes in ' ${LIB}
# Determine whether this filesystem has symbolic links.
if ln -s X $LIB/ShouldNotExist 2>/dev/null; then
rm -f $LIB/ShouldNotExist
LINKS=true
else
LINKS=false
fi
echo 'Making directories:'
cd ${INPUT}
if $LINKS; then
files=`ls -LR | sed -n s/:$//p`
else
files=`find . -type d -print | sed '/^.$/d'`
fi
for file in $files; do
rm -rf $LIB/$file
if [ ! -d $LIB/$file ]
then mkdir $LIB/$file
fi
done
# treetops gets an alternating list
# of old directories to copy
# and the new directories to copy to.
treetops="${INPUT} ${LIB}"
if $LINKS; then
echo 'Making internal symbolic directory links'
for file in $files; do
dest=`ls -ld $file | sed -n 's/.*-> //p'`
if [ "$dest" ]; then
cwd=`pwd`
# In case $dest is relative, get to $file's dir first.
cd ${INPUT}
cd `echo ./$file | sed -n 's&[^/]*$&&p'`
# 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
# X gets the dir that the link actually leads to.
x=`pwd`
# If link leads back into ${INPUT},
# make a similar link here.
if expr $x : "${INPUT}/.*" > /dev/null; then
# Y gets the actual target dir name, relative to ${INPUT}.
y=`echo $x | sed -n "s&${INPUT}/&&p"`
echo $file '->' $y ': Making link'
rm -fr ${LIB}/$file > /dev/null 2>&1
ln -s ${LIB}/$y ${LIB}/$file > /dev/null 2>&1
else
# If the link is to outside ${INPUT},
# treat this directory as if it actually contained the files.
# This line used to have $dest instead of $x.
# $dest seemed to be wrong for links found in subdirectories
# of ${INPUT}. Does this change break anything?
treetops="$treetops $x ${LIB}/$file"
fi
fi
cd $cwd
fi
done
fi
set - $treetops
while [ $# != 0 ]; do
# $1 is an old directory to copy, and $2 is the new directory to copy to.
echo "Finding header files in $1:"
cd ${INPUT}
cd $1
files=`find . -name '*.h' -type f -print`
echo 'Checking header files:'
for file in $files; do
if egrep '!__STDC__' $file >/dev/null; then
if [ -r $file ]; then
cp $file $2/$file >/dev/null 2>&1 || echo "Can't copy $file"
chmod +w $2/$file
chmod a+r $2/$file
# The following have been removed from the sed command below
# because it is more useful to leave these things in.
# The only reason to remove them was for -pedantic,
# which isn't much of a reason. -- rms.
# /^[ ]*#[ ]*ident/d
sed -e '
s/!__STDC__/!defined (__STRICT_ANSI__)/g
' $2/$file > $2/$file.sed
mv $2/$file.sed $2/$file
if cmp $file $2/$file >/dev/null 2>&1; then
rm $2/$file
else
echo Fixed $file
fi
fi
fi
done
shift; shift
done
# Fix first broken decl of getcwd present on some svr4 systems.
file=stdlib.h
base=`basename $file`
if [ -r ${LIB}/$file ]; then
file_to_fix=${LIB}/$file
else
if [ -r ${INPUT}/$file ]; then
file_to_fix=${INPUT}/$file
else
file_to_fix=""
fi
fi
if [ \! -z "$file_to_fix" ]; then
echo Checking $file_to_fix
sed -e 's/getcwd(char \{0,\}\*, int)/getcwd(char *, size_t)/' $file_to_fix > /tmp/$base
if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \
true
else
echo Fixed $file_to_fix
rm -f ${LIB}/$file
cp /tmp/$base ${LIB}/$file
chmod a+r ${LIB}/$file
fi
rm -f /tmp/$base
fi
# Fix second broken decl of getcwd present on some svr4 systems. Also
# fix the incorrect decl of profil present on some svr4 systems.
file=unistd.h
base=`basename $file`
if [ -r ${LIB}/$file ]; then
file_to_fix=${LIB}/$file
else
if [ -r ${INPUT}/$file ]; then
file_to_fix=${INPUT}/$file
else
file_to_fix=""
fi
fi
if [ \! -z "$file_to_fix" ]; then
echo Checking $file_to_fix
sed -e 's/getcwd(char \*, int)/getcwd(char *, size_t)/' $file_to_fix \
| sed -e 's/profil(unsigned short \*, unsigned int, unsigned int, unsigned int)/profil(unsigned short *, size_t, int, unsigned)/' > /tmp/$base
if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \
true
else
echo Fixed $file_to_fix
rm -f ${LIB}/$file
cp /tmp/$base ${LIB}/$file
chmod a+r ${LIB}/$file
fi
rm -f /tmp/$base
fi
# Fix third broken decl of getcwd on SCO. Also fix incorrect decl of
# link.
file=prototypes.h
base=`basename $file`
if [ -r ${LIB}/$file ]; then
file_to_fix=${LIB}/$file
else
if [ -r ${INPUT}/$file ]; then
file_to_fix=${INPUT}/$file
else
file_to_fix=""
fi
fi
if [ \! -z "$file_to_fix" ]; then
echo Checking $file_to_fix
sed -e 's/getcwd(char \*, int)/getcwd(char *, size_t)/' $file_to_fix \
| sed -e 's/const int link(const char \*, char \*)/extern int link(const char *, const char *)/' > /tmp/$base
if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \
true
else
echo Fixed $file_to_fix
rm -f ${LIB}/$file
cp /tmp/$base ${LIB}/$file
chmod a+r ${LIB}/$file
fi
rm -f /tmp/$base
fi
# Fix an error in this file: the #if says _cplusplus, not the double
# underscore __cplusplus that it should be
file=tinfo.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
mkdir ${LIB}/rpcsvc 2>/dev/null
cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
chmod +w ${LIB}/$file 2>/dev/null
chmod a+r ${LIB}/$file 2>/dev/null
fi
if [ -r ${LIB}/$file ]; then
echo Fixing $file, __cplusplus macro
sed -e 's/[ ]_cplusplus/ __cplusplus/' ${LIB}/$file > ${LIB}/${file}.sed
rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
if cmp $file ${LIB}/$file >/dev/null 2>&1; then
rm ${LIB}/$file
fi
fi
# Fix prototype declaration of utime in sys/times.h. In 3.2v4.0 the
# const is missing.
file=sys/times.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
chmod +w ${LIB}/$file 2>/dev/null
chmod a+r ${LIB}/$file 2>/dev/null
fi
if [ -r ${LIB}/$file ]; then
echo Fixing $file, utime prototype
sed -e 's/(const char \*, struct utimbuf \*);/(const char *, const struct utimbuf *);/' ${LIB}/$file > ${LIB}/${file}.sed
rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
if cmp $file ${LIB}/$file >/dev/null 2>&1; then
rm ${LIB}/$file
fi
fi
echo 'Removing unneeded directories:'
cd $LIB
files=`find . -type d -print | sort -r`
for file in $files; do
rmdir $LIB/$file > /dev/null 2>&1
done
if $LINKS; then
echo 'Making internal symbolic non-directory links'
cd ${INPUT}
files=`find . -type l -print`
for file in $files; do
dest=`ls -ld $file | sed -n 's/.*-> //p'`
if expr "$dest" : '[^/].*' > /dev/null; then
target=${LIB}/`echo file | sed "s|[^/]*\$|$dest|"`
if [ -f $target ]; then
ln -s $dest ${LIB}/$file >/dev/null 2>&1
fi
fi
done
fi
exit 0