gcc/fixinc.sco - gcc - Git at Google

 #! /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)).
 #
 # Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
 #
 # 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, 59 Temple Place - Suite 330,
 # Boston, MA 02111-1307, 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

 # We shouldn't stay in the directory we just copied.
 cd ${INPUT}

 # 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

 # This function is borrowed from fixinclude.svr4
 # The OpenServer math.h defines struct exception, which conflicts with
 # the class exception defined in the C++ file std/stdexcept.h.  We
 # redefine it to __math_exception.  This is not a great fix, but I
 # haven't been able to think of anything better.
 #
 # OpenServer's math.h declares abs as inline int abs...  Unfortunately,
 # we blow over that one (with C++ linkage) and stick a new one in stdlib.h
 # with C linkage.   So we eat the one out of math.h.
 file=math.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 '/struct exception/i\
 #ifdef __cplusplus\
 #define exception __math_exception\
 #endif'\
       -e '/struct exception/a\
 #ifdef __cplusplus\
 #undef exception\
 #endif' \
       -e 's@inline int abs(int [a-z][a-z]*) {.*}@extern "C" int abs(int);@' \
  $file_to_fix > /tmp/$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

 #
 # Also, the static functions lstat() and fchmod() in <sys/stat.h>
 # cause G++ grief since they're not wrapped in "if __cplusplus".
 # Fix that up now.
 #
 file=sys/stat.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 $file, static definitions not C++-aware.
   sed -e '/^static int[ 	]*/i\
 #if __cplusplus\
 extern "C"\
 {\
 #endif /* __cplusplus */ \
 ' \
 -e '/^}$/a\
 #if __cplusplus\
 }\
 #endif /* __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 -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
	#! /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)).
	#
	# Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
	#
	# 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, 59 Temple Place - Suite 330,
	# Boston, MA 02111-1307, 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

	# We shouldn't stay in the directory we just copied.
	cd ${INPUT}

	# 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

	# This function is borrowed from fixinclude.svr4
	# The OpenServer math.h defines struct exception, which conflicts with
	# the class exception defined in the C++ file std/stdexcept.h. We
	# redefine it to __math_exception. This is not a great fix, but I
	# haven't been able to think of anything better.
	#
	# OpenServer's math.h declares abs as inline int abs... Unfortunately,
	# we blow over that one (with C++ linkage) and stick a new one in stdlib.h
	# with C linkage. So we eat the one out of math.h.
	file=math.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 '/struct exception/i\
	#ifdef __cplusplus\
	#define exception __math_exception\
	#endif'\
	-e '/struct exception/a\
	#ifdef __cplusplus\
	#undef exception\
	#endif' \
	-e 's@inline int abs(int [a-z][a-z]) {.}@extern "C" int abs(int);@' \
	$file_to_fix > /tmp/$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

	#
	# Also, the static functions lstat() and fchmod() in <sys/stat.h>
	# cause G++ grief since they're not wrapped in "if __cplusplus".
	# Fix that up now.
	#
	file=sys/stat.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 $file, static definitions not C++-aware.
	sed -e '/^static int[ ]*/i\
	#if __cplusplus\
	extern "C"\
	{\
	#endif /* __cplusplus */ \
	' \
	-e '/^}$/a\
	#if __cplusplus\
	}\
	#endif /* __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 -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