configur

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:
# Guess values for system-dependant variables and create `Makefile'.
# Copyright (C) 1991 Free Software Foundation, Inc.

# This program 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.

# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

# Usage: configure [+srcdir=DIR] [+host=HOST] [+gas] [+nfp] [TARGET]
# All args except +srcdir=DIR are ignored.

trap 'rm -f conftest conftest.c; exit 1' 1 3 15

set +u # Make sure unset variables are ok.

# Make sure we don't find the System V /etc/install.
PATH=`echo $PATH|sed 's,^:,|,
s,:$,|,
s,:/usr/etc,,g
s,/usr/etc:,,g
s,:/etc,,g
s,/etc:,,g
s,|,:,g'`

# A filename unique to this package, relative to the directory that
# configure is in, which we can look for to find out if srcdir is correct.
unique_file=sed.c

for arg in $*; do
  # Handle +srcdir with a space before the argument.
  if [ x$next_srcdir = xyes ]; then srcdir=$arg; next_srcdir=
  # Handle +host with a space before the argument.
  elif [ x$next_host = xyes ]; then next_host=
  else 
    case $arg in
     -srcdir=* | +srcdir=* | +srcdi=* | +srcd=* | +src=* | +sr=* | +s=*)
	srcdir=`echo $arg | sed 's/[+-]s[a-z]*=//'` ;;
     -srcdir | +srcdir | +srcdi | +srcd | +src | +sr | +s)
	next_srcdir=yes ;;
     -host=* | +host=* | +hos=* | +ho=* | +h=*) ;;
     -host | +host | +hos | +ho | +h)
	next_host=yes ;;
     -gas | +gas | +ga | +g) ;;
     -nfp | +nfp | +nf | +n) ;;
     *) ;;
    esac
  fi
done

# Find the source files, if location was not specified.
if [ x$srcdir = x ]; then
  srcdirdefaulted=yes; srcdir=.
  if [ ! -r $unique_file ]; then srcdir=..; fi
fi
if [ $srcdir != . ]; then VPATH='VPATH = $(srcdir)'; fi

if [ ! -r $srcdir/$unique_file ]; then
  if [ x$srcdirdefaulted = xyes ]; then
    echo "$0: Can not find sources in \`.' or \`..'." 1>&2
  else
    echo "$0: Can not find sources in \`${srcdir}'." 1>&2
  fi
  exit 1
fi

if test "$RANDOM" = "$RANDOM"; then
  # Plain old Bourne shell.
  echo checking for gcc
  test -z "$CC" -a -n "`gcc 2>&1`" && CC="gcc -O"

  echo checking for install
  if test -z "$INSTALL" -a -n "`install 2>&1`"; then
    INSTALL="install -c"
  fi
else
  # ksh, bash or zsh.
  echo checking for gcc
  test -z "$CC" && type gcc && CC="gcc -O"

  echo checking for install
  if test -z "$INSTALL" && type install; then
    INSTALL="install -c"
  fi
fi

CC=${CC-cc}
INSTALL=${INSTALL-cp}
INCLUDEDIR=${INCLUDEDIR-/usr/include}

rm -f conftest conftest.c
compile="$CC $DEFS conftest.c -o conftest $LIBS >/dev/null 2>&1"

# Check for various header files.

echo checking for ANSI C header files
echo "#include <stdlib.h>
#include <string.h>
main() { exit(0); strerror(0); }" > conftest.c
eval $compile
if test -s conftest && ./conftest 2>/dev/null; then
  DEFS="$DEFS -DSTDC_HEADERS"
fi
rm -f conftest conftest.c

echo checking for BSD string and memory functions
echo "#include <strings.h>
main() { exit(0); rindex(0, 0); bzero(0, 0); }" > conftest.c
eval $compile
if test -s conftest && ./conftest 2>/dev/null; then :
  else DEFS="$DEFS -DUSG"
fi
rm -f conftest conftest.c

# Check whether various functions exist.

func=vfprintf
echo checking for $func
echo "main() { exit(0); ${func}(); }" > conftest.c
eval $compile
if test -s conftest && ./conftest 2>/dev/null; then :
else DEFS="$DEFS -DNO_VFPRINTF"
fi
rm -f conftest conftest.c

# Check other misc. things.

echo checking for unsigned characters
echo 'main() { char c = 255; exit(c < 0); }' > conftest.c
eval $compile
if test -s conftest && ./conftest 2>/dev/null; then
  DEFS="$DEFS -DCHAR_UNSIGNED"
fi
rm -f conftest conftest.c

echo checking how to get alloca
echo '
#ifdef __GNUC__
#define alloca __builtin_alloca
#else
#ifdef sparc
#include <alloca.h>
#else
#ifdef _AIX
#pragma alloca
#else
char *alloca ();
#endif
#endif
#endif
main() { char *p = (char *) alloca(1); exit(0); }' > conftest.c
eval $compile
if test -s conftest && ./conftest 2>/dev/null; then :
elif test -d /usr/ucblib; then LIBS="$LIBS -L/usr/ucblib -lucb"
else LIBS="$LIBS -lPW"
fi
rm -f conftest conftest.c

trap 'rm -f Makefile config.status; exit 1' 1 3 15

echo '# Generated automatically from Makefile.in by configure.' > Makefile
sed -e "
s,@srcdir@,$srcdir,
s,@VPATH@,$VPATH,
s,@CC@,$CC,
s,@INSTALL@,$INSTALL,
s,@DEFS@,$DEFS,
s,@LIBS@,$LIBS,
" $srcdir/Makefile.in >> Makefile

echo "CC = $CC
INSTALL = $INSTALL
DEFS = $DEFS
LIBS = $LIBS" > config.status