Created repository.

[splint.git] / configure

#!/bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated automatically using autoconf.
# Copyright (C) 1991, 1992, 1993 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] [--no-create]
#        [--prefix=PREFIX] [--exec-prefix=PREFIX] [--with-PACKAGE] [TARGET]
# Ignores all args except --srcdir, --prefix, --exec-prefix, --no-create, and
# --with-PACKAGE unless this script has special code to handle it.


for arg
do
  # Handle --exec-prefix with a space before the argument.
  if test x$next_exec_prefix = xyes; then exec_prefix=$arg; next_exec_prefix=
  # Handle --host with a space before the argument.
  elif test x$next_host = xyes; then next_host=
  # Handle --prefix with a space before the argument.
  elif test x$next_prefix = xyes; then prefix=$arg; next_prefix=
  # Handle --srcdir with a space before the argument.
  elif test x$next_srcdir = xyes; then srcdir=$arg; next_srcdir=
  else
    case $arg in
     # For backward compatibility, also recognize exact --exec_prefix.
     -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* | --exec=* | --exe=* | --ex=* | --e=*)
	exec_prefix=`echo $arg | sed 's/[-a-z_]*=//'` ;;
     -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- | --exec | --exe | --ex | --e)
	next_exec_prefix=yes ;;

     -gas | --gas | --ga | --g) ;;

     -host=* | --host=* | --hos=* | --ho=* | --h=*) ;;
     -host | --host | --hos | --ho | --h)
	next_host=yes ;;

     -nfp | --nfp | --nf) ;;

     -no-create | --no-create | --no-creat | --no-crea | --no-cre | --no-cr | --no-c | --no- | --no)
        no_create=1 ;;

     -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
	prefix=`echo $arg | sed 's/[-a-z_]*=//'` ;;
     -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
	next_prefix=yes ;;

     -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=* | --s=*)
	srcdir=`echo $arg | sed 's/[-a-z_]*=//'` ;;
     -srcdir | --srcdir | --srcdi | --srcd | --src | --sr | --s)
	next_srcdir=yes ;;

     -with-* | --with-*)
       package=`echo $arg|sed 's/-*with-//'`
       # Delete all the valid chars; see if any are left.
       if test -n "`echo $package|sed 's/[-a-zA-Z0-9_]*//g'`"; then
         echo "configure: $package: invalid package name" >&2; exit 1
       fi
       eval "with_`echo $package|sed s/-/_/g`=1" ;;

     -v | -verbose | --verbose | --verbos | --verbo | --verb | --ver | --ve | --v)
       verbose=yes ;;

     *) ;;
    esac
  fi
done

trap 'rm -f conftest* core; exit 1' 1 3 15

# Needed for some versions of `tr' so that character classes in `[]' work.
if test "${LANG+set}" = "set" ; then
   LANG=C
   LC_ALL=C
   export LANG LC_ALL
fi

rm -f conftest*
compile='${CC-cc} $CFLAGS $DEFS conftest.c -o conftest $LIBS >/dev/null 2>&1'

# 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=Makefile.in

# Find the source files, if location was not specified.
if test -z "$srcdir"; then
  srcdirdefaulted=yes
  # Try the directory containing this script, then `..'.
  prog=$0
  confdir=`echo $prog|sed 's%/[^/][^/]*$%%'`
  test "X$confdir" = "X$prog" && confdir=.
  srcdir=$confdir
  if test ! -r $srcdir/$unique_file; then
    srcdir=..
  fi
fi
if test ! -r $srcdir/$unique_file; then
  if test x$srcdirdefaulted = xyes; then
    echo "configure: Can not find sources in \`${confdir}' or \`..'." 1>&2
  else
    echo "configure: Can not find sources in \`${srcdir}'." 1>&2
  fi
  exit 1
fi

# Preserve a srcdir of `.' to avoid automounter screwups with pwd.
# But we can't avoid them for `..', to make subdirectories work.
case $srcdir in
  .|/*|~*) ;;
  *) srcdir=`cd $srcdir; pwd` ;; # Make relative path absolute.
esac

if test -z "$CC"; then
  # Extract the first word of `gcc', so it can be a program name with args.
  set dummy gcc; word=$2
  echo checking for $word
  IFS="${IFS= 	}"; saveifs="$IFS"; IFS="${IFS}:"
  for dir in $PATH; do
    test -z "$dir" && dir=.
    if test -f $dir/$word; then
      CC="gcc"
      break
    fi
  done
  IFS="$saveifs"
fi
test -z "$CC" && CC="cc"
test -n "$CC" -a -n "$verbose" && echo "	setting CC to $CC"

# Find out if we are using GNU C, under whatever name.
cat > conftest.c <<EOF
#ifdef __GNUC__
  yes
#endif
EOF
${CC-cc} -E conftest.c > conftest.out 2>&1
if egrep yes conftest.out >/dev/null 2>&1; then
  GCC=1 # For later tests.
  CFLAGS="${CFLAGS--O}"
fi
rm -f conftest*

if test -z "$BISON"; then
  echo checking for bison
  IFS="${IFS= 	}"; saveifs="$IFS"; IFS="${IFS}:"
  for dir in $PATH; do
    test -z "$dir" && dir=.
    if test -f $dir/bison; then
      BISON=$dir/bison
      break
    fi
  done
  IFS="$saveifs"
fi

test -n "$BISON" -a -n "$verbose" && echo "	setting BISON to $BISON"

if test -z "$FLEX"; then
  echo checking for flex
  IFS="${IFS= 	}"; saveifs="$IFS"; IFS="${IFS}:"
  for dir in $PATH; do
    test -z "$dir" && dir=.
    if test -f $dir/flex; then
      FLEX=$dir/flex
      break
    fi
  done
  IFS="$saveifs"
fi

test -n "$FLEX" -a -n "$verbose" && echo "	setting FLEX to $FLEX"

echo checking how to run the C preprocessor
if test -z "$CPP"; then
  CPP='gcc -E'
  cat > conftest.c <<EOF
#include <stdio.h>
EOF
err=`eval "($CPP \$DEFS conftest.c >/dev/null) 2>&1"`
if test -z "$err"; then
  :
else
  CPP=/lib/cpp
fi
rm -f conftest*
fi

echo 'checking if pre-processor defined __STDC__'
echo '# ifndef __STDC__' > conftest.c
echo '# error "No STDC"' >> conftest.c
echo 'int main (void) { exit (0); }' >> conftest.c
eval "$CPP conftest.c > conftest.out 2>&1"
if egrep "No STDC" conftest.out >/dev/null 2>&1; then
  test -n "$verbose" && echo '        __STDC__ not defined'
  DEFS="$DEFS -DNEED_STDC"
fi

echo 'checking for optimization levels'
echo 'int main (void) { exit (0); }' > conftest.c
eval "$CC -O -o conftest conftest.c > conftest.out 2>&1"
if egrep "O" conftest.out >/dev/null 2>&1; then
  test -n "$verbose" && echo '        No optimization flags found'
  OPT=''
else
  eval "$CC -O2 -o conftest conftest.c > conftest.out 2>&1"
  if egrep "O2" conftest.out >/dev/null 2>&1; then
    test -n "$verbose" && echo '        Optimization: -O'
    OPT='-O'
  else
    eval "$CC -O3 -o conftest conftest.c > conftest.out 2>&1"
    if egrep "O3" conftest.out >/dev/null 2>&1; then
      test -n "$verbose" && echo '        Optimization: -O2'
      OPT='-O2'
      else
         if egrep "O4" conftest.out >/dev/null 2>&1; then
	   test -n "$verbose" && echo '        Optimization: -O3'
           OPT='-O2'
	 else
           test -n "$verbose" && echo '        Optimization: -O4'
	   OPT='-O2'
# bug in gcc makes -O3 and -O4 bad - bug in compiling parser
         fi
      fi
   fi 
fi
rm -f conftest*

# Make sure to not get the incompatible SysV /etc/install and
# /usr/sbin/install, which might be in PATH before a BSD-like install,
# or the SunOS /usr/etc/install directory, or the AIX /bin/install,
# or the AFS install, which mishandles nonexistent args, or
# /usr/ucb/install on SVR4, which tries to use the nonexistent group
# `staff'.  On most BSDish systems install is in /usr/bin, not /usr/ucb
# anyway.  Sigh.
if test "z${INSTALL}" = "z" ; then
  echo checking for install
  IFS="${IFS= 	}"; saveifs="$IFS"; IFS="${IFS}:"
  for dir in $PATH; do
    test -z "$dir" && dir=.
    case $dir in
    /etc|/usr/sbin|/usr/etc|/usr/afsws/bin|/usr/ucb) ;;
    *)
      if test -f $dir/installbsd; then
	INSTALL="$dir/installbsd -c" # OSF1
	INSTALL_PROGRAM='$(INSTALL)'
	INSTALL_DATA='$(INSTALL) -m 644'
	break
      fi
      if test -f $dir/install; then
	if grep dspmsg $dir/install >/dev/null 2>&1; then
	  : # AIX
	else
	  INSTALL="$dir/install -c"
	  INSTALL_PROGRAM='$(INSTALL)'
	  INSTALL_DATA='$(INSTALL) -m 644'
	  break
	fi
      fi
      ;;
    esac
  done
  IFS="$saveifs"
fi
INSTALL=${INSTALL-cp}
INSTALL_PROGRAM=${INSTALL_PROGRAM-'$(INSTALL)'}
INSTALL_DATA=${INSTALL_DATA-'$(INSTALL)'}

echo checking for ANSI C header files
cat > conftest.c <<EOF
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <float.h>
EOF
err=`eval "($CPP \$DEFS conftest.c >/dev/null) 2>&1"`
if test -z "$err"; then
  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
echo '#include <string.h>' > conftest.c
eval "$CPP \$DEFS conftest.c > conftest.out 2>&1"
if egrep "memchr" conftest.out >/dev/null 2>&1; then
  # SGI's /bin/cc from Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
cat > conftest.c <<EOF
#include <ctype.h>
#define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
#define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
#define XOR(e,f) (((e) && !(f)) || (!(e) && (f)))
int main () { int i; for (i = 0; i < 256; i++)
if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
exit (0); }

EOF
eval $compile
if test -s conftest && (./conftest; exit) 2>/dev/null; then
  {
test -n "$verbose" && \
echo '	defining' STDC_HEADERS
DEFS="$DEFS -DSTDC_HEADERS=1"
}

fi
rm -f conftest*
fi
rm -f conftest*

fi
rm -f conftest*

echo checking for stdarg.h
cat > conftest.c <<EOF
#include <stdarg.h>
EOF
err=`eval "($CPP \$DEFS conftest.c >/dev/null) 2>&1"`
if test -z "$err"; then
  USEVARARGS=0 :
else
  {
test -n "$verbose" && \
echo '	defining' USEVARARGS
DEFS="$DEFS -DUSEVARARGS=1"
USEVARARGS=1
}
fi

echo checking for string.h
cat > conftest.c <<EOF
#include <string.h>
EOF
err=`eval "($CPP \$DEFS conftest.c >/dev/null) 2>&1"`
if test -z "$err"; then
  :
else
  {
test -n "$verbose" && \
echo '	defining' NO_STRING_H
DEFS="$DEFS -DNO_STRING_H=1"
}

fi
rm -f conftest*

echo checking for stdlib.h
cat > conftest.c <<EOF
#include <stdlib.h>
EOF
err=`eval "($CPP \$DEFS conftest.c >/dev/null) 2>&1"`
if test -z "$err"; then
  :
else
  {
test -n "$verbose" && \
echo '	defining' NO_STDLIB_H
DEFS="$DEFS -DNO_STDLIB_H=1"
}

fi
rm -f conftest*

echo checking for size_t in sys/types.h
echo '#include <sys/types.h>' > conftest.c
eval "$CPP \$DEFS conftest.c > conftest.out 2>&1"
if egrep "size_t" conftest.out >/dev/null 2>&1; then
  :
else
  {
test -n "$verbose" && \
echo '	defining' size_t to be 'unsigned'
DEFS="$DEFS -Dsize_t=unsigned"
}

fi
rm -f conftest*

echo '#include <sys/types.h>' > conftest.c
eval "$CPP \$DEFS conftest.c > conftest.out 2>&1"
if egrep "off_t" conftest.out >/dev/null 2>&1; then
  :
else
  {
test -n "$verbose" && \
echo '	defining' NO_OFF_T
DEFS="$DEFS -DNO_OFF_T=1"
}
fi

echo checking for EXIT_SUCCESS
cat > conftest.c <<EOF
# include <stdlib.h>
int main (void) { return EXIT_SUCCESS; }
EOF
err=`eval "($CC -c \$DEFS conftest.c >/dev/null) 2>&1"`
if test -z "$err"; then
  :
else
  {
test -n "$verbose" && \
echo '	no EXIT_SUCCESS' 
DEFS="$DEFS -DEXIT_SUCCESS=0"
}
fi

echo checking for EXIT_FAILURE
cat > conftest.c <<EOF
# include <stdlib.h>
int main (void) { return EXIT_FAILURE; }
EOF
err=`eval "($CC -c \$DEFS conftest.c >/dev/null) 2>&1"`
if test -z "$err"; then
  :
else
  {
test -n "$verbose" && \
echo '	no EXIT_FAILURE' 
DEFS="$DEFS -DEXIT_FAILURE=-1"
}
fi

echo checking for -ll
echo 'int main (void) { exit (0); }' > conftest.c
err=`eval "($CC conftest.c -o conftest -ll >/dev/null) 2>&1"`
if test -z "$err"; then
LINKLEX="-ll"
else
echo '  No -ll...trying -lfl'
err=`eval "($CC conftest.c -o conftest -lfl >/dev/null) 2>&1"`
if test -z "$err"; then
echo 'Okay!'
LINKLEX="-lfl"
else
echo '*** No lex or flex library found.  Must have -ll or -lfl to build lclint.'
echo '*** If this is installed on your system, try editing the configure
script to use the correct flags to locate this file.'
fi
fi
rm -f conftest*

if test -z "$cwdir"
  then
  cwdir=`pwd`
  echo setting current directory to $cwdir
  fi

if test -z "$prefix"
then
  prefix=$cwdir
  echo "	chose installation directory prefix ${prefix}"
  echo "	will install binaries in ${prefix}/bin"
  echo "	will install libraries in ${prefix}/lib"
  echo "	will install imports in ${prefix}/imports"
  echo "	will install emacs files in ${prefix}/emacs"
  echo "        edit Makefile to change installation directories"
fi

if test -z "$G" -a -n "$prefix" -a -f $prefix/bin/gznew; then
  G=g
fi
if test -z "$ZCAT"; then
  if test -n "$prefix" -a -f $prefix/bin/gzcat; then
    ZCAT=gzcat
  else
    ZCAT=${G}zcat
  fi
fi
if test -n "$prefix"; then
  test -z "$exec_prefix" && exec_prefix='${prefix}'
  prsub="s%^prefix\\([ 	]*\\)=\\([ 	]*\\).*$%prefix\\1=\\2$prefix%"
fi
if test -n "$exec_prefix"; then
  prsub="$prsub
s%^exec_prefix\\([ 	]*\\)=\\([ 	]*\\).*$%\
exec_prefix\\1=\\2$exec_prefix%"
fi
cat >conftest.def <<EOF
$DEFS
EOF
escape_ampersand_and_backslash='s%[&\\]%\\&%g'
DEFS=`sed "$escape_ampersand_and_backslash" <conftest.def`
rm -f conftest.def

trap 'rm -f config.status; exit 1' 1 3 15
echo creating config.status
rm -f config.status
cat > config.status <<EOF
#!/bin/sh
# Generated automatically by configure.
# Run this file to recreate the current configuration.
# This directory was configured as follows,
# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
#
# $0 $*

for arg
do
  case "\$arg" in
    -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    exec /bin/sh $0 $* ;;
    *) echo "Usage: config.status --recheck" 2>&1; exit 1 ;;
  esac
done

trap 'rm -f Makefile; exit 1' 1 3 15
CC='$CC'
CPP='$CPP'
OPT='$OPT'
cwdir='$cwdir'
INSTALL='$INSTALL'
INSTALL_PROGRAM='$INSTALL_PROGRAM'
INSTALL_DATA='$INSTALL_DATA'
BISON='$BISON'
FLEX='$FLEX'
ZCAT='$ZCAT'
LINKLEX='$LINKLEX'
G='$G'
CFLAGS='$CFLAGS'
ASCPP='$ASCPP'
OBJA='$OBJA'
SEDCMD='$SEDCMD'
LIBS='$LIBS'
srcdir='$srcdir'
DEFS='$DEFS'
prefix='$prefix'
installdir='$prefix'
exec_prefix='$exec_prefix'
prsub='$prsub'
EOF
cat >> config.status <<\EOF

top_srcdir=$srcdir

# Allow make-time overrides of the generated file list.
test -n "$gen_files" || gen_files="Makefile"

for file in .. $gen_files; do if [ "x$file" != "x.." ]; then
  srcdir=$top_srcdir
  # Remove last slash and all that follows it.  Not all systems have dirname.
  dir=`echo $file|sed 's%/[^/][^/]*$%%'`
  if test "$dir" != "$file"; then
    test "$top_srcdir" != . && srcdir=$top_srcdir/$dir
    test ! -d $dir && mkdir $dir
  fi
  echo creating $file
  rm -f $file
  echo "# Generated automatically from `echo $file|sed 's|.*/||'`.in by configure." > $file
  sed -e "
$prsub
s%@CC@%$CC%g
s%@CPP@%$CPP%g
s%@OPT@%$OPT%g
s%@LINKLEX@%$LINKLEX%g
s%@BISON@%$BISON%g
s%@FLEX@%$FLEX%g
s%@cwdir@%$cwdir%g
s%@installdir@%$installdir%g
s%@INSTALL@%$INSTALL%g
s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
s%@INSTALL_DATA@%$INSTALL_DATA%g
s%@ZCAT@%$ZCAT%g
s%@G@%$G%g
s%@CFLAGS@%$CFLAGS%g
s%@OBJA@%$OBJA%g
s%@SEDCMD@%$SEDCMD%g
s%@LIBS@%$LIBS%g
s%@srcdir@%$srcdir%g
s%@DEFS@%$DEFS%
" $top_srcdir/${file}.in >> $file
fi; done

exit 0
EOF
chmod +x config.status
test -n "$no_create" || ./config.status