#! /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.

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

# This prevents /bin/ex from failing if the current terminal type is
# unrecognizable.
TERM=unknown
export TERM

# Directory in which to store the results.
LIB=${1-${LIB-/usr/local/lib/gcc-include}}

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

# Make LIB absolute.
cd $LIB; LIB=`pwd`

# 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 fixincludes 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
else
  LINKS=false
fi

echo 'Making directories:'
cd ${INPUT}
# Find all directories and all symlinks that point to directories.
files=`	find . -type d -print | sed '/^.$/d'
	$LINKS && find . -type l -exec test -d '{}' \; -print`
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:'
# 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.
# rms: I removed `|#[el].*if.*[^/ 	]' because it made egrep fail.
    if egrep '[ 	_]_IO|CTRL|#define.NULL|#[el]*if.*([0-9]|sparc|vax|sun|pyr)' $file > /dev/null; then
      echo Fixing $file
      if [ -r $file ]; then
	cp $file $2/$file >/dev/null 2>&1	\
	|| echo "Can't copy $file"
	chmod +w $2/$file
# Following two lines removed.
#	  s%^\([ 	]*#[ 	]*endif[ 	]*\)\([^/ 	].*\)$%\1/* \2 */%
#	  s%^\([ 	]*#[ 	]*else[ 	]*\)\([^/ 	].*\)$%\1/* \2 */%

	sed -e '
				   :loop
	  /\\$/			N
	  /\\$/			b loop
	  /[ 	]_IO[A-Z]*[ 	]*(/	s/(\(.\),/('\''\1'\'',/
	  /[ 	]BSD43__IO[A-Z]*[ 	]*(/	s/(\(.\),/('\''\1'\'',/
	  /#define._IO/		s/'\''x'\''/x/g
	  /#define.BSD43__IO/		s/'\''x'\''/x/g
	  /[^A-Z]CTRL[ 	]*(/	s/\([^'\'']\))/'\''\1'\'')/
	  /#define.CTRL/		s/'\''c'\''/c/g
	  /#define._CTRL/		s/'\''c'\''/c/g
	  /#define.BSD43_CTRL/		s/'\''c'\''/c/g
	  /#[a-z]*if.*[	 (]m68k/		s/\([^_]\)m68k/\1__m68k__/g
	  /#[a-z]*if.*[	 (]__i386/	s/__i386/__i386__/g
	  /#[a-z]*if.*[	 (]i386/		s/\([^_]\)i386/\1__i386__/g
	  /#[a-z]*if.*[	 (]sparc/	s/\([^_]\)sparc/\1__sparc__/g
	  /#[a-z]*if.*[	 (]mc68000/	s/\([^_]\)mc68000/\1__mc68000__/g
	  /#[a-z]*if.*[	 (]vax/		s/\([^_]\)vax/\1__vax__/g
	  /#[a-z]*if.*[	 (]sun/		s/\([^_]\)\(sun[a-z0-9]*\)\([^a-z0-9_]\)/\1__\2__\3/g
	  /#[a-z]*if.*[	 (]sun/		s/\([^_]\)\(sun[a-z0-9]*\)$/\1__\2__/g
	  /#[a-z]*if.*[	 (]ns32000/	s/\([^_]\)ns32000/\1__ns32000__/g
	  /#[a-z]*if.*[	 (]pyr/		s/\([^_]\)pyr/\1__pyr__/g
	  /#[a-z]*if.*[	 (]is68k/	s/\([^_]\)is68k/\1__is68k__/g
	  /#define.NULL[ 	]/	i\
		#undef NULL
	' $2/$file > $2/$file.sed
	mv $2/$file.sed $2/$file
	if cmp $file $2/$file >/dev/null 2>&1; then
	   echo Deleting $2/$file\; no fixes were needed.
	   rm $2/$file
	fi
      fi
    fi
  done
  shift; shift
done

cd ${INPUT}

# 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
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file comment
  ex ${LIB}/$file <<EOF
  g/doesn't/s/doesn't/does not/
  wq
EOF
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    echo Deleting ${LIB}/$file\; no fixes were needed.
    rm ${LIB}/$file
  fi
fi

# Fix this Sun file to avoid intefering 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
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file
  ex ${LIB}/$file <<EOF
  /size_t.*;/
  i
#ifndef _GCC_SIZE_T
#define _GCC_SIZE_T
.
  /size_t/+1
  i
#endif
.
  /ptrdiff_t.*;/
  i
#ifndef _GCC_PTRDIFF_T
#define _GCC_PTRDIFF_T
.
  /ptrdiff_t/+1
  i
#endif
.
  /wchar_t.*;/
  i
#ifndef _GCC_WCHAR_T
#define _GCC_WCHAR_T
.
  /wchar_t/+1
  i
#endif
.
  wq
EOF
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    echo Deleting ${LIB}/$file\; no fixes were needed.
    rm ${LIB}/$file
  fi
fi

# Fix this file to avoid intefering with stddef.h.
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
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file
  ex ${LIB}/$file <<EOF
  /size_t.*;/
  i
#ifndef _GCC_SIZE_T
#define _GCC_SIZE_T
.
  /size_t/+1
  i
#endif
.
  wq
EOF
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    echo Deleting ${LIB}/$file\; no fixes were needed.
    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
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file, definition of statsswtch
  ex ${LIB}/$file <<EOF
  g/boottime$/s//&;/
  wq
EOF
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    echo Deleting ${LIB}/$file\; no fixes were needed.
    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
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file, definition of nodeent
  ex ${LIB}/$file <<EOF
  g/na_addr/s//&;/
  wq
EOF
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    echo Deleting ${LIB}/$file\; no fixes were needed.
    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
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file, bad \#ifdef line
  ex ${LIB}/$file <<EOF
  g/^#ifdef KERNEL && !defined/
  s/#ifdef KERNEL && !defined/#if defined(KERNEL) \&\& !defined/
  wq
EOF
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    echo Deleting ${LIB}/$file\; no fixes were needed.
    rm ${LIB}/$file
  fi
fi

# Remove nested comments created by #endifs in a comment (Ultrix 4.1)
# Only needed if commenting out junk after #endif.
#file=signal.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 ]; then
#  echo Fixing $file, nested comments
#  sed -e 's/#endif.*/#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

# 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
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file, superfluous static
  ex ${LIB}/$file <<EOF
  g/^static struct tlb_pid_state/
  s/static//
  wq
EOF
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    echo Deleting ${LIB}/$file\; no fixes were needed.
    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
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file sprintf declaration
  ex ${LIB}/$file <<EOF
  /^extern char \*	sprintf();$/c
#ifndef __STDC__
extern char *	sprintf();
#endif /* !defined __STDC__ */
.
  wq
EOF
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    echo Deleting ${LIB}/$file\; no fixes were needed.
    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
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
    echo Deleting ${LIB}/$file\; no fixes were needed.
    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
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
    echo Deleting ${LIB}/$file\; no fixes were needed.
    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
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
    echo Deleting ${LIB}/$file\; no fixes were needed.
    rm -f ${LIB}/$file
  fi
fi

# Fix return type of exit and abort in <stdlib.h> on SunOS 4.1.
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
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' ${LIB}/$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

# Fix bogus comment in <locale.h> on SunOS 4.1.
file=locale.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 ]; then
  echo Fixing $file
  sed -e 's%#endif / \*%#endif /\* %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
    echo Deleting ${LIB}/$file\; no fixes were needed.
    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
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
    echo Deleting ${LIB}/$file\; no fixes were needed.
    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
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
    echo Deleting ${LIB}/$file\; no fixes were needed.
    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
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
    echo Deleting ${LIB}/$file\; no fixes were needed.
    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
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file, incorrect \#include
  sed -e 's@"../machine/endian.h"@<machine/endian.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
    echo Deleting ${LIB}/$file\; no fixes were needed.
    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
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
    echo Deleting ${LIB}/$file\; no fixes were needed.
    rm -f ${LIB}/$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