#! /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 GNU C will search.

# See README-fixinc for more information.

# Command to run gcc.
GCCCMD=${4-${GCCCMD-gcc}}

# Directory where gcc sources (and sometimes special include files) live.
# fixincludes doesn't use this, but fixinc.svr4 does, and I want to make
# sure somebody doesn't try to use arg3 for something incompatible. -- gumby
SRCDIR=${3-${SRCDIR-.}}

# Directory containing the original header files.
# (This was named INCLUDES, but that conflicts with a name in Makefile.in.)
INPUT=${2-${INPUT-/usr/include}}

# Directory in which to store the results.
LIB=${1?"fixincludes: output directory not specified"}

# Define PWDCMD as a command to use to get the working dir
# in the form that we want.
PWDCMD=pwd
case "`pwd`" in
//*)
	# On an Apollo, discard everything before `/usr'.
	PWDCMD="eval pwd | sed -e 's,.*/usr/,/usr/,'"
	;;
esac

# Original directory.
ORIGDIR=`${PWDCMD}`

# Make sure it exists.
if [ ! -d $LIB ]; then
  mkdir $LIB || exit 1
fi

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

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

# 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

echo Building fixed headers in ${LIB}

# Determine whether this system has symbolic links.
if 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

echo Finding directories and links to directories
cd ${INPUT}
# Find all directories and all symlinks that point to directories.
# Put the list in $files.
# 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 $files may have duplicates in it;
# later parts of this file are supposed to ignore them.
dirs="."
levels=2
while [ -n "$dirs" ] && [ $levels -gt 0 ]
do
    levels=`expr $levels - 1`
    newdirs=
    for d in $dirs
    do
	echo " Searching $INPUT/$d"
	if [ "$d" != . ]
	then
	    d=$d/.
	fi

	# Find all directories under $d, relative to $d, excluding $d itself.
        files="$files `find $d -type d -print | \
		       sed -e '/\/\.$/d' -e '/^\.$/d'`"
	# 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`
	for d1 in $theselinks --dummy--
	do
	    # If the link points to a directory,
	    # add that dir to $newdirs
	    if [ -d $d1 ]
	    then
		newdirs="$newdirs $d1"
	    fi
	done
    done

    files="$files $newdirs"
    dirs="$newdirs"
done

dirs=
echo "All directories (including links to directories):"
echo $files

for file in $files; 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="${INPUT} ${LIB}"

if $LINKS; then
  echo 'Making symbolic directory links'
  for file in $files; do
    dest=`ls -ld $file | sed -n 's/.*-> //p'`
    if [ "$dest" ]; then    
      cwd=`${PWDCMD}`
      # 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 $dest
	# X gets the dir that the link actually leads to.
	x=`${PWDCMD}`
	# If a link points to ., make a similar link to .
	if [ $x = $INPUT ]; then
	  echo $file '->' . ': Making link'
	  rm -fr ${LIB}/$file > /dev/null 2>&1
	  ln -s . ${LIB}/$file > /dev/null 2>&1
	# If link leads back into ${INPUT},
	# make a similar link here.
	elif expr $x : "${INPUT}/.*" > /dev/null; then
	  # Y gets the actual target dir name, relative to ${INPUT}.
	  y=`echo $x | sed -n "s&${INPUT}/&&p"`
	  # DOTS is the relative path from ${LIB}/$file's dir back to ${LIB}.
	  dots=`echo "$file" |
		sed -e 's@^./@@' -e 's@[^/][^/]*@..@g' -e 's@..$@@'`
	  echo $file '->' $dots$y ': Making link'
	  rm -fr ${LIB}/$file > /dev/null 2>&1
	  ln -s $dots$y ${LIB}/$file > /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.
	  echo $file '->' root$x ': Making link'
	  if [ -d $LIB/root$x ]
	  then true
	  else
	    dirname=root$x/
	    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 ${LIB}/$file in new
	  # root area.
	  for file2 in $files; do
	    case $file2 in
	      $file/./*)
		dupdir=${LIB}/root$x/`echo $file2 | sed -n "s|^${file}/||p"`
		echo "Duplicating ${file}'s ${dupdir}"
		if [ -d ${dupdir} ]
		then true
		else
		  mkdir ${dupdir}
		fi
		;;
	      *)
		;;
	    esac
          done
	  # DOTS is the relative path from ${LIB}/$file's dir back to ${LIB}.
	  dots=`echo "$file" |
		sed -e 's@^./@@' -e 's@[^/][^/]*@..@g' -e 's@..$@@'`
	  rm -fr ${LIB}/$file > /dev/null 2>&1
	  ln -s ${dots}root$x ${LIB}/$file > /dev/null 2>&1
	  treetops="$treetops $x ${LIB}/root$x"
	fi
      fi
      cd $cwd
    fi
  done
fi

set x $treetops
shift
while [ $# != 0 ]; do
  # $1 is an old directory to copy, and $2 is the new directory to copy to.
  cd ${INPUT}
  cd $1
# The same dir can appear more than once in treetops.
# There's no need to scan it more than once.
  if [ -f $2/DONE ]
  then
    files=
  else
    touch $2/DONE
    echo Fixing directory $1 into $2
# Check .h files which are symlinks as well as those which are files.
# A link to a header file will not be processed by anything but this.
    if $LINKS; then
      files=`find . -name '*.h' \( -type f -o -type l \) -print`
    else
      files=`find . -name '*.h' -type f -print`
    fi
    echo Checking header files
  fi
# Note that BSD43_* are used on recent MIPS systems.
  for file in $files; do
# This call to egrep is essential, since checking a file with egrep
# is much faster than actually trying to fix it.
# It is also essential that most files *not* match!
# Thus, matching every #endif is unacceptable.
# But the argument to egrep must be kept small, or many versions of egrep
# won't be able to handle it.
#
# We use the pattern [!-.0-~] instead of [^/ 	] to match a noncomment
# following #else or #endif because some buggy egreps think [^/] matches
# newline, and they thus think `#else ' matches `#e[ndiflse]*[ 	]+[^/ 	]'.
#
# We use the pattern [^a-zA-Z0-9_][_a-ce-km-z][a-z0-9] to match an identifier
# following #if or #elif that is not surrounded by __.  The `a-ce-km-z'
# in this pattern lacks `d' and `l'; this means we don't worry about
# identifiers starting with `d' or `l'.  This is OK, since none of the
# identifiers below start with `d' or `l'.  It also greatly improves
# performance, since many files contain lines of the form `#if ... defined ...'
# or `#if lint'.
    if egrep '//|[ 	_]_IO|CTRL|^#define.NULL|^#e[nl][ds][ief]*[ 	]+[!-.0-~]|^#[el]*if.*[^a-zA-Z0-9_][_a-ce-km-z][a-z0-9]' $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
	# Here is how the sed commands in braces work.
	# (It doesn't work to put the comments inside the sed commands.)
		# Surround each word with spaces, to simplify matching below.
		# ANSIfy each pre-ANSI machine-dependent symbol
		# by surrounding it with __ __.
		# Remove the spaces that we inserted around each word.
	sed -e '
				   :loop
	  /\\$/			N
	  /\\$/			b loop
	  s%^\([ 	]*#[ 	]*else\)[ 	]*/[^*].*%\1%
	  s%^\([ 	]*#[ 	]*else\)[ 	]*[^/ 	].*%\1%
	  s%^\([ 	]*#[ 	]*endif\)[ 	]*/[^*].*%\1%
	  s%^\([ 	]*#[ 	]*endif\)[ 	]*\*[^/].*%\1%
	  s%^\([ 	]*#[ 	]*endif\)[ 	]*[^/* 	].*%\1%
	  /\/\/[^*]/			s|//\(.*\)$|/*\1*/|
	  /[ 	]_IO[A-Z]*[ 	]*(/	s/\(_IO[A-Z]*[ 	]*(\)\(.\),/\1'\''\2'\'',/
	  /[ 	]BSD43__IO[A-Z]*[ 	]*(/	s/(\(.\),/('\''\1'\'',/
	  /#define._IO/			s/'\''\([cgxt]\)'\''/\1/g
	  /#define.BSD43__IO/		s/'\''\([cgx]\)'\''/\1/g
	  /[^A-Z0-9_]CTRL[ 	]*(/		s/\([^'\'']\))/'\''\1'\'')/
	  /[^A-Z0-9]_CTRL[ 	]*(/		s/\([^'\'']\))/'\''\1'\'')/
	  /#define[ 	]*[	]CTRL/		s/'\''\([cgx]\)'\''/\1/g
	  /#define[ 	]*[	]_CTRL/		s/'\''\([cgx]\)'\''/\1/g
	  /#define.BSD43_CTRL/		s/'\''\([cgx]\)'\''/\1/g
	  /#[el]*if/{
		s/[a-zA-Z0-9_][a-zA-Z0-9_]*/ & /g

		s/ bsd4\([0-9]\) / __bsd4\1__ /g
		s/ _*i386 / __i386__ /g
		s/ is68k / __is68k__ /g
		s/ m68k / __m68k__ /g
		s/ mc680\([0-9]\)0 / __mc680\10__ /g
		s/ news\([0-9]*\) / __news\1__ /g
		s/ ns32000 / __ns32000__ /g
		s/ pyr / __pyr__ /g
		s/ sony_news / __sony_news__ /g
		s/ sparc / __sparc__ /g
		s/ sun\([a-z0-9]*\) / __sun\1__ /g
		s/ unix / __unix__ /g
		s/ vax / __vax__ /g

		s/ \([a-zA-Z0-9_][a-zA-Z0-9_]*\) /\1/g
	  }
	  /^#define.NULL[ 	]/	i\
		#undef NULL
	' $2/$file > $2/$file.
	mv $2/$file. $2/$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

cd ${INPUT}

# Install the proper definition of size_t in header files that it comes from.
for file in sys/types.h stdlib.h sys/stdtypes.h; do
  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 comment
    # Get the definition of __SIZE_TYPE__, if any.
    # (This file must be called something.c).
    echo "__SIZE_TYPE__" > ${LIB}/types.c
    foo=`${GCCCMD} -E -P ${LIB}/types.c`
    rm -f ${LIB}/types.c
    # Default to our preferred type.
    if [ "$foo" = __SIZE_TYPE__ ]; then foo="unsigned long int"; fi
    sed -e "s/typedef[ 	a-z_]*[ 	]size_t/typedef $foo size_t/" ${LIB}/$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
done

# Fix one other error in this file: a mismatched quote not inside a C comment.
file=sundev/vuid_event.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/sundev 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 comment
  sed -e "s/doesn't/does not/" ${LIB}/$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 these Sun OS files to avoid an invalid identifier in an #ifdef.
file=sunwindow/win_cursor.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
#  mkdir ${LIB}/sunwindow 2>/dev/null
  cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
  chmod +w ${LIB}/$file 2>/dev/null
fi
if [ -r ${LIB}/$file ]; then
  echo Fixing $file
  sed -e "s/ecd.cursor/ecd_cursor/" ${LIB}/$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
file=sunwindow/win_lock.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
#  mkdir ${LIB}/sunwindow 2>/dev/null
  cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
  chmod +w ${LIB}/$file 2>/dev/null
fi
if [ -r ${LIB}/$file ]; then
  echo Fixing $file
  sed -e "s/ecd.cursor/ecd_cursor/" ${LIB}/$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 this Sun file to avoid interfering with stddef.h.
file=sys/stdtypes.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
sed -e '/[	 ]size_t.*;/i\
#ifndef _GCC_SIZE_T\
#define _GCC_SIZE_T' \
    -e '/[	 ]size_t.*;/a\
#endif' \
    -e '/[	 ]ptrdiff_t.*;/i\
#ifndef _GCC_PTRDIFF_T\
#define _GCC_PTRDIFF_T' \
    -e '/[	 ]ptrdiff_t.*;/a\
#endif' \
    -e '/[	 ]wchar_t.*;/i\
#ifndef _GCC_WCHAR_T\
#define _GCC_WCHAR_T' \
    -e '/[	 ]wchar_t.*;/a\
#endif' ${LIB}/$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 this file to avoid interfering with stddef.h, but don't mistakenly
# match e.g. ssize_t present in AIX for the ps/2.
file=sys/types.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
sed -e '/[ 	]size_t.*;/i\
#ifndef _GCC_SIZE_T\
#define _GCC_SIZE_T' \
    -e '/[ 	]size_t.*;/a\
#endif' ${LIB}/$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 HP's use of ../machine/inline.h to refer to
# /usr/include/machine/inline.h
file=sys/spinlock.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  cp $file ${LIB}/$file
fi
if [ -r ${LIB}/$file ] ; then
  echo Fixing $file
  sed -e 's,"../machine/inline.h",<machine/inline.h>,' \
    -e 's,"../machine/psl.h",<machine/psl.h>,' \
  ${LIB}/$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 AIX use of "XDPS.h" to refer to <DPS/XDPS.h>
file=DPS/XDPSlib.h
if [-r $file] && [ ! -r ${LIB}/$file ] ; then
  cp $file ${LIB}/$file
fi
if [ -r ${LIB}/$file ] ; then
  echo Fixing $file
  sed -e 's,"XDPS.h",<DPS/XDPS.h>,' ${LIB}/$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 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 an error in this file: a missing semi-colon at the end of the statsswtch
# structure definition.
file=rpcsvc/rstat.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 $file, definition of statsswtch
  sed -e 's/boottime$/boottime;/' ${LIB}/$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 an error in this file: a missing semi-colon at the end of the nodeent
# structure definition.
file=netdnet/dnetdb.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/netdnet 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 $file, definition of nodeent
  sed -e 's/char.*na_addr *$/char *na_addr;/' ${LIB}/$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

# Check for bad #ifdef line (in Ultrix 4.1)
file=sys/file.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, bad \#ifdef line
  sed -e 's/#ifdef KERNEL/#if defined(KERNEL)/' ${LIB}/$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

# Check for superfluous `static' (in Ultrix 4.2)
file=machine/cpu.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/machine 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, superfluous static
  sed -e 's/^static struct tlb_pid_state/struct tlb_pid_state/' ${LIB}/$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
  else
# This file has an alternative name, mips/cpu.h.  Fix that name, too.
    if cmp machine/cpu.h mips/cpu.h > /dev/null 2>&1; then
      mkdir ${LIB}/mips 2>&-
      ln ${LIB}/$file ${LIB}/mips/cpu.h 
    fi
  fi
fi

# Incorrect sprintf declaration in X11/Xmu.h
file=X11/Xmu.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/X11 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 $file sprintf declaration
  sed -e 's,^extern char \*	sprintf();$,#ifndef __STDC__\
extern char *	sprintf();\
#endif /* !defined __STDC__ */,' ${LIB}/$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

# Incorrect sprintf declaration in X11/Xmu/Xmu.h
# (It's not clear whether the right file name is this or X11/Xmu.h.)
file=X11/Xmu/Xmu.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/X11/Xmu 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 $file sprintf declaration
  sed -e 's,^extern char \*	sprintf();$,#ifndef __STDC__\
extern char *	sprintf();\
#endif /* !defined __STDC__ */,' ${LIB}/$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

# Check for missing ';' in struct
file=netinet/ip.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/netinet 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 $file
  sed -e '/^struct/,/^};/s/}$/};/' ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# Fix the CAT macro in SunOS memvar.h.
file=pixrect/memvar.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/pixrect 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
  sed -e '/^#define.CAT(a,b)/ i\
#ifdef __STDC__ \
#define CAT(a,b) a##b\
#else
/^#define.CAT(a,b)/ a\
#endif
' ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# Check for yet more missing ';' in struct (in SunOS 4.0.x)
file=rpcsvc/rusers.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 $file
  sed -e '/^struct/,/^};/s/_cnt$/_cnt;/' ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# Fix return type of exit and abort in <stdlib.h> on SunOS 4.1.
# Also wrap protection around size_t for m88k-sysv3 systems.
file=stdlib.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
  sed -e 's/int	abort/void	abort/g' \
  -e 's/int	free/void	free/g' \
  -e 's/char \*	calloc/void \*	calloc/g' \
  -e 's/char \*	malloc/void \*	malloc/g' \
  -e 's/char \*	realloc/void \*	realloc/g' \
  -e 's/int	exit/void	exit/g' \
  -e '/typedef[ 	a-zA-Z_]*[ 	]size_t[ 	]*;/i\
#ifndef _GCC_SIZE_T\
#define _GCC_SIZE_T' \
  -e '/typedef[ 	a-zA-Z_]*[ 	]size_t[ 	]*;/a\
#endif' \
      ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# Fix return type of free and {c,m,re}alloc in <malloc.h> on SunOS 4.1.
file=malloc.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
  sed -e 's/typedef[ 	]char \*	malloc_t/typedef void \*	malloc_t/g' \
  -e 's/int[ 	][ 	]*free/void	free/g' \
  ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# Fix bogus #ifdef in <hsfs/hsfs_spec.h> on SunOS 4.1.
file=hsfs/hsfs_spec.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/hsfs 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
  sed -e 's/\#ifdef __i386__ || __vax__/\#if __i386__ || __vax__/g' \
    ${LIB}/$file > ${LIB}/${file}.
  rm -f ${LIB}/$file; mv ${LIB}/${file}. ${LIB}/$file
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    rm -f ${LIB}/$file
  fi
fi

# Fix bogus #ifdef in <hsfs/hsnode.h> on SunOS 4.1.
file=hsfs/hsnode.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/hsfs 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
  sed -e 's/\#ifdef __i386__ || __sun4c__/\#if __i386__ || __sun4c__/g' \
    ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# Fix bogus #ifdef in <hsfs/iso_spec.h> on SunOS 4.1.
file=hsfs/iso_spec.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/hsfs 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
  sed -e 's/\#ifdef __i386__ || __vax__/\#if __i386__ || __vax__/g' \
    ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# Incorrect #include in Sony News-OS 3.2.
file=machine/machparam.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/machine 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, incorrect \#include
  sed -e 's@"../machine/endian.h"@<machine/endian.h>@' \
    ${LIB}/$file > ${LIB}/${file}.
  rm -f ${LIB}/$file; mv ${LIB}/${file}. ${LIB}/$file
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    rm -f ${LIB}/$file
  fi
fi

# Multiline comment after typedef on IRIX 4.0.1.
file=sys/types.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/sys 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, comment in the middle of \#ifdef
  sed -e 's@type of the result@type of the result */@' \
    -e 's@of the sizeof@/* of the sizeof@' \
    ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# Turning // comments into /* */ comments trashes this IRIX 4.0.1
# header file, which embeds // comments inside multi-line /* */
# comments.  If this looks like the IRIX header file, we refix it by
# just throwing away the // comments.
file=fam.h
if [ -r ${LIB}/$file ]; then
  if egrep indigo.esd ${LIB}/$file > /dev/null; then
    echo Fixing $file, overeager sed script
    rm ${LIB}/$file
    sed -e 's|//.*$||g' $file > ${LIB}/$file
    chmod +w ${LIB}/$file 2>/dev/null
    chmod a+r ${LIB}/$file 2>/dev/null
  fi
fi

# Another IRIX 4.0.1 header file contains the string "//"
file=elf_abi.h
if [ -r ${LIB}/$file ]; then
  echo Fixing $file, overeager sed script
  sed -e 's|"/\*"\*/|"//"|' ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# Same problem with a file from SunOS 4.1.3 : a header file containing
# the string "//" embedded in "/**/"
file=sbusdev/audiovar.h
if [ -r ${LIB}/$file ]; then
  echo Fixing $file, overeager sed script
  rm ${LIB}/$file
  sed -e 's|//.*$||g' $file > ${LIB}/$file
  chmod +w ${LIB}/$file 2>/dev/null
  chmod a+r ${LIB}/$file 2>/dev/null
fi

# Fix non-ANSI memcpy declaration that conflicts with gcc's builtin
# declaration on Sun OS 4.x.  We must only fix this on Sun OS 4.x, because
# many other systems have similar text but correct versions of the file.
# To ensure only Sun's is fixed, we grep for a likely unique string.
file=memory.h
if [ -r $file ] && egrep '/\*	@\(#\)memory\.h 1\.[2-4] 8./../.. SMI; from S5R2 1\.2	\*/' $file > /dev/null; then
  if [ ! -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 Replacing $file
    cat > ${LIB}/$file << EOF
/* This file was generated by fixincludes */
#ifndef __memory_h__
#define __memory_h__

#ifdef __STDC__
extern void *memccpy();
extern void *memchr();
extern void *memcpy();
extern void *memset();
#else
extern char *memccpy();
extern char *memchr();
extern char *memcpy();
extern char *memset();
#endif /* __STDC__ */

extern int memcmp();

#endif /* __memory_h__ */
EOF
  fi
fi

# parameters not const on DECstation Ultrix V4.0.
file=stdio.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, non-const arg
  sed -e 's@perror( char \*__s );@perror( const char *__s );@' \
      -e 's@fputs( char \*__s,@fputs( const char *__s,@' \
      -e 's@fopen( char \*__filename, char \*__type );@fopen( const char *__filename, const char *__type );@' \
      -e 's@fwrite( void \*__ptr,@fwrite( const void *__ptr,@' \
      -e 's@fscanf( FILE \*__stream, char \*__format,@fscanf( FILE *__stream, const char *__format,@' \
      -e 's@scanf( char \*__format,@scanf( const char *__format,@' \
      -e 's@sscanf( char \*__s, char \*__format,@sscanf( const char *__s, const char *__format,@' \
    ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# parameters conflict with C++ new on rs/6000 
for file in stdio.h unistd.h ; do
  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
  fi

  if [ -r ${LIB}/$file ]; then
    echo Fixing $file, parameter name conflicts
    sed -e 's@rename(const char \*old, const char \*new)@rename(const char *_old, const char *_new)@' \
      ${LIB}/$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 -f ${LIB}/$file
    fi
  fi
done

# function class(double x) conflicts with C++ keyword on rs/6000 
file=math.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
  if grep 'class[(]' ${LIB}/$file >/dev/null; then
    echo Fixing $file
    sed -e '/class[(]/i\
#ifndef __cplusplus' \
        -e '/class[(]/a\
#endif' ${LIB}/$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
fi

# NeXT defines 'int wait(union wait*)', which conflicts with Posix.1.
file=sys/wait.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
fi

if [ -r ${LIB}/$file ] \
  && grep 'wait[(]union wait' ${LIB}/$file >/dev/null; then
  echo Fixing $file, bad wait formal
  sed -e 's@wait(union wait@wait(void@' ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# Don't use or define the name va_list in stdio.h.
# This is for ANSI and also to interoperate properly with gvarargs.h.
file=stdio.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, use of va_list
  # Arrange for stdio.h to use stdarg.h to define __gnuc_va_list
  (echo "#define __need___va_list"
   echo "#include <stdarg.h>") > ${LIB}/${file}.sed
  # Use __gnuc_va_list in arg types in place of va_list.
  # On 386BSD use __gnuc_va_list instead of _VA_LIST_. We're hoping the
  # trailing parentheses and semicolon save all other systems from this.
  # Define __va_list__ (something harmless and unused) instead of va_list.
  # Don't claim to have defined va_list.
  sed -e 's@ va_list @ __gnuc_va_list @' \
      -e 's@ va_list)@ __gnuc_va_list)@' \
      -e 's@ _VA_LIST_));@ __gnuc_va_list));@' \
      -e 's@ va_list@ __va_list__@' \
      -e 's@\*va_list@*__va_list__@' \
      -e 's@_NEED___VA_LIST@_NEED___Va_LIST@' \
      -e 's@VA_LIST@DUMMY_VA_LIST@' \
      -e 's@_NEED___Va_LIST@_NEED___VA_LIST@' \
    ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# Cancel out ansi_compat.h on Ultrix.  Replace it with empty file.
file=ansi_compat.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  if grep -s ULTRIX $file; then
    echo "/* This file intentionally left blank.  */" > $LIB/$file
  fi
fi

# parameter to atof not const on DECstation Ultrix V4.0.
# also get rid of bogus inline definitions in HP-UX 8.0
file=math.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, non-const arg
  sed -e 's@atof( char \*__nptr );@atof( const char *__nptr );@' \
      -e 's@inline int abs(int d) { return (d>0)?d:-d; }@@' \
      -e 's@inline double abs(double d) { return fabs(d); }@@' \
    ${LIB}/$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 -f ${LIB}/$file
  fi
fi

# In limits.h, put #ifndefs around things that are supposed to be defined
# in float.h to avoid redefinition errors if float.h is included first.
# On HP/UX this patch does not work, because on HP/UX limits.h uses
# multi line comments and the inserted #endif winds up inside the
# comment.  Fortunately, HP/UX already uses #ifndefs in limits.h; if
# we find a #ifndef FLT_MIN we assume that all the required #ifndefs
# are there, and we do not add them ourselves.
file=limits.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
  if egrep 'ifndef[ 	]+FLT_MIN' ${LIB}/$file >/dev/null; then
    true
  else
    echo Fixing $file
    sed -e '/[ 	]FLT_MIN[ 	]/i\
#ifndef FLT_MIN'\
        -e '/[ 	]FLT_MIN[ 	]/a\
#endif'\
        -e '/[ 	]FLT_MAX[ 	]/i\
#ifndef FLT_MAX'\
        -e '/[ 	]FLT_MAX[ 	]/a\
#endif'\
        -e '/[ 	]FLT_DIG[ 	]/i\
#ifndef FLT_DIG'\
        -e '/[ 	]FLT_DIG[ 	]/a\
#endif'\
        -e '/[ 	]DBL_MIN[ 	]/i\
#ifndef DBL_MIN'\
        -e '/[ 	]DBL_MIN[ 	]/a\
#endif'\
        -e '/[ 	]DBL_MAX[ 	]/i\
#ifndef DBL_MAX'\
        -e '/[ 	]DBL_MAX[ 	]/a\
#endif'\
        -e '/[ 	]DBL_DIG[ 	]/i\
#ifndef DBL_DIG'\
        -e '/[ 	]DBL_DIG[ 	]/a\
#endif'\
      ${LIB}/$file > ${LIB}/${file}.sed
    rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
  fi
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    echo Deleting ${LIB}/$file\; no fixes were needed.
    rm -f ${LIB}/$file
  fi
fi

# In math.h, put #ifndefs around things that might be defined in a gcc
# specific math-*.h file.
file=math.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
  sed -e '/define[ 	]HUGE_VAL[ 	]/i\
#ifndef HUGE_VAL'\
      -e '/define[ 	]HUGE_VAL[ 	]/a\
#endif'\
    ${LIB}/$file > ${LIB}/${file}.sed
  rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    echo Deleting ${LIB}/$file\; no fixes were needed.
    rm -f ${LIB}/$file
  fi
fi

# These two files on SunOS 4 are included by other files
# in the same directory, using "...".  So we must make sure they exist
# in the same directory as the other fixed files.
if [ -r ${INPUT}/multimedia/audio_errno.h ]
then
  ln -s ${INPUT}/multimedia/audio_errno.h ${LIB}/multimedia 2>/dev/null
fi
if [ -r ${INPUT}/multimedia/audio_hdr.h ]
then
  ln -s ${INPUT}/multimedia/audio_hdr.h ${LIB}/multimedia 2>/dev/null
fi

# Determine if we're on Interactive Unix 2.2 or later, in which case we
# need to fix some additional files.  This is the same test for ISC that
# Autoconf uses.
if test -d /etc/conf/kconfig.d \
    && grep _POSIX_VERSION /usr/include/sys/unistd.h >/dev/null 2>&1; then
  echo "Fixing ISC __STDC__ goof in several files..."
  for name in stdio.h math.h ctype.h sys/limits.h sys/fcntl.h sys/dirent.h; do
    echo $name
    if test -r ${LIB}/$name; then
      file=${LIB}/$name
    else
      file=${INPUT}/$name
    fi
    # On Interactive 2.2, certain traditional Unix definitions
    # (notably getc and putc in stdio.h) are omitted if __STDC__ is
    # defined, not just if _POSIX_SOURCE is defined.  This makes it
    # impossible to compile any nontrivial program except with -posix.
    sed \
's/!defined(__STDC__) && !defined(_POSIX_SOURCE)/!defined(_POSIX_SOURCE)/' \
	    < $file > ${LIB}/$name.
    mv ${LIB}/$name. ${LIB}/$name
  done
  
  echo "Fixing ISC fmod declaration"
  # This one's already been fixed for other things.
  file=${LIB}/math.h
  sed 's/fmod(double)/fmod(double, double)/' <$file >$file.
  mv $file. $file
  
  echo "Fixing nested comments in ISC <sys/limits.h>"
  file=sys/limits.h
  sed '/CHILD_MAX/s,/\* Max, Max,' < ${INPUT}/$file >${LIB}/$file.
  sed '/OPEN_MAX/s,/\* Max, Max,' < ${LIB}/$file. >${LIB}/$file
fi

# These files in Sun OS 4.x use /**/ to concatenate tokens.
for file in sparc/asm_linkage.h sun3/asm_linkage.h sun3x/asm_linkage.h	\
	sun4/asm_linkage.h sun4c/asm_linkage.h sun4m/asm_linkage.h	\
	sun4c/debug/asm_linkage.h sun4m/debug/asm_linkage.h;
do
  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
    sed -e 's|/\*\*/|##|g' ${LIB}/$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 -f ${LIB}/$file
    fi
  fi
done

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

echo 'Cleaning up DONE files.'
cd $LIB
find . -name DONE -exec rm -f {} ';'

exit 0