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|
#! /bin/sh
# Install modified versions of certain problematic Irix include files.
# If possible, create a wrapper (see fixinc.wrap) instead of copying files.
#
# Copyright (C) 1997 Free Software Foundation, Inc.
# Contributed by Brendan Kehoe (brendan@cygnus.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, 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
# 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 $LIB in
/*)
;;
*)
LIB=$ORIG_DIR/$LIB
;;
esac
echo 'Building fixincludes in ' ${LIB}
#
# Note: For Irix, we deliberately don't try to create the directory trees,
# since we only modify math.h, limits.h and unistd.h. If we
# ADD ANY OTHERS, the "Making directories:" and symlinks code from
# fixinc.svr4 may have to go back in.
# This math.h fix is copied from fixinc.wrap. We want to avoid copying
# math.h because both math.h and stdlib.h have a declaration for initstate,
# and this declaration changed between Irix 6.2 and Irix 6.3. If we copy this
# file, then the same toolchain can't be shared between 6.2 and 6.3+.
# Some math.h files define 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.
file=math.h
if [ -r $INPUT/$file ]; then
echo Checking $INPUT/$file
if grep 'struct exception' $INPUT/$file >/dev/null
then
echo Fixed $file
rm -f $LIB/$file
cat <<'__EOF__' >$LIB/$file
#ifndef _MATH_H_WRAPPER
#ifdef __cplusplus
# define exception __math_exception
#endif
#include_next <math.h>
#ifdef __cplusplus
# undef exception
#endif
#define _MATH_H_WRAPPER
#endif /* _MATH_H_WRAPPER */
__EOF__
# Define _MATH_H_WRAPPER at the end of the wrapper, not the start,
# so that if #include_next gets another instance of the wrapper,
# this will follow the #include_next chain until we arrive at
# the real <math.h>.
chmod a+r $LIB/$file
fi
fi
# Avoid the definition of the bool type in curses.h when using
# g++, since it's now an official type in the C++ language.
# This is also from fixinc.wrap.
file=curses.h
if [ -r $INPUT/$file ]; then
echo Checking $INPUT/$file
w='[ ]'
if grep "typedef$w$w*char$w$w*bool$w*;" $INPUT/$file >/dev/null
then
echo Fixed $file
rm -f $LIB/$file
cat <<'__EOF__' >$LIB/$file
#ifndef _CURSES_H_WRAPPER
#ifdef __cplusplus
# define bool __curses_bool_t
#endif
#include_next <curses.h>
#ifdef __cplusplus
# undef bool
#endif
#define _CURSES_H_WRAPPER
#endif /* _CURSES_H_WRAPPER */
__EOF__
# Define _CURSES_H_WRAPPER at the end of the wrapper, not the start,
# so that if #include_next gets another instance of the wrapper,
# this will follow the #include_next chain until we arrive at
# the real <curses.h>.
chmod a+r $LIB/$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.
file=limits.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 '/[ ]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
' $file_to_fix > /tmp/$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
# The Irix unistd.h will introduce a call to __vfork in its libc, but the
# function is never actually prototyped.
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 '/__vfork/i\
extern pid_t __vfork(void);'\
$file_to_fix > /tmp/$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
exit 0
|
