be defensive about setting {host,group,pass}cat (from Andy Dougherty)

[p5sagit/p5-mst-13.2.git] / hints / freebsd.sh

# Original based on info from
# Carl M. Fongheiser <cmf@ins.infonet.net>
# Date: Thu, 28 Jul 1994 19:17:05 -0500 (CDT)
#
# Additional 1.1.5 defines from 
# Ollivier Robert <Ollivier.Robert@keltia.frmug.fr.net>
# Date: Wed, 28 Sep 1994 00:37:46 +0100 (MET)
#
# Additional 2.* defines from
# Ollivier Robert <Ollivier.Robert@keltia.frmug.fr.net>
# Date: Sat, 8 Apr 1995 20:53:41 +0200 (MET DST)
#
# Additional 2.0.5 and 2.1 defined from
# Ollivier Robert <Ollivier.Robert@keltia.frmug.fr.net>
# Date: Fri, 12 May 1995 14:30:38 +0200 (MET DST)
#
# Additional 2.2 defines from
# Mark Murray <mark@grondar.za>
# Date: Wed, 6 Nov 1996 09:44:58 +0200 (MET)
#
# Modified to ensure we replace -lc with -lc_r, and
# to put in place-holders for various specific hints.
# Andy Dougherty <doughera@lafcol.lafayette.edu>
# Date: Tue Mar 10 16:07:00 EST 1998
#
# Support for FreeBSD/ELF
# Ollivier Robert <roberto@keltia.freenix.fr>
# Date: Wed Sep  2 16:22:12 CEST 1998
#
# The two flags "-fpic -DPIC" are used to indicate a
# will-be-shared object.  Configure will guess the -fpic, (and the
# -DPIC is not used by perl proper) but the full define is included to 
# be consistent with the FreeBSD general shared libs building process.
#
# setreuid and friends are inherently broken in all versions of FreeBSD
# before 2.1-current (before approx date 4/15/95). It is fixed in 2.0.5
# and what-will-be-2.1
#

case "$osvers" in
0.*|1.0*)
	usedl="$undef"
	;;
1.1*)
	malloctype='void *'
	groupstype='int'
	d_setregid='undef'
	d_setreuid='undef'
	d_setrgid='undef'
	d_setruid='undef'
	;;
2.0-release*)
	d_setregid='undef'
	d_setreuid='undef'
	d_setrgid='undef'
	d_setruid='undef'
	;;
#
# Trying to cover 2.0.5, 2.1-current and future 2.1/2.2
# It does not covert all 2.1-current versions as the output of uname
# changed a few times.
#
# Even though seteuid/setegid are available, they've been turned off
# because perl isn't coded with saved set[ug]id variables in mind.
# In addition, a small patch is requried to suidperl to avoid a security
# problem with FreeBSD.
#
2.0.5*|2.0-built*|2.1*)
 	usevfork='true'
	usemymalloc='n'
	d_setregid='define'
	d_setreuid='define'
	d_setegid='undef'
	d_seteuid='undef'
	test -r ./broken-db.msg && . ./broken-db.msg
	;;
#
# 2.2 and above have phkmalloc(3).
# don't use -lmalloc (maybe there's an old one from 1.1.5.1 floating around)
2.2*)
 	usevfork='true'
	usemymalloc='n'
	libswanted=`echo $libswanted | sed 's/ malloc / /'`
	d_setregid='define'
	d_setreuid='define'
	d_setegid='undef'
	d_seteuid='undef'
	;;
#
# Guesses at what will be needed after 2.2
*)	usevfork='true'
	usemymalloc='n'
	libswanted=`echo $libswanted | sed 's/ malloc / /'`
	;;
esac

# Dynamic Loading flags have not changed much, so they are separated
# out here to avoid duplicating them everywhere.
case "$osvers" in
0.*|1.0*) ;;

3.*|4.0*)
        objformat=`/usr/bin/objformat`
        if [ x$objformat = xelf ]; then
            libpth="/usr/lib /usr/local/lib"
            glibpth="/usr/lib /usr/local/lib"
            ldflags="-Wl,-E "
            lddlflags="-shared "
        else
            if [ -e /usr/lib/aout ]; then
            libpth="/usr/lib/aout /usr/local/lib /usr/lib"
            glibpth="/usr/lib/aout /usr/local/lib /usr/lib"
        fi
        lddlflags='-Bshareable'
        fi
        cccdlflags='-DPIC -fpic'
        ;;

*)	cccdlflags='-DPIC -fpic'
	lddlflags="-Bshareable $lddlflags"
	;;
esac

case "$osvers" in
4.0*)
	if /usr/bin/file /usr/lib/libc.so.3 | /usr/bin/grep -vq "not stripped" ; then
	    usenm=false
	fi
esac

cat <<'EOM' >&4

Some users have reported that Configure halts when testing for
the O_NONBLOCK symbol with a syntax error.  This is apparently a
sh error.  Rerunning Configure with ksh apparently fixes the
problem.  Try
	ksh Configure [your options]

EOM

# From: Anton Berezin <tobez@plab.ku.dk>
# To: perl5-porters@perl.org
# Subject: [PATCH 5.005_54] Configure - hints/freebsd.sh signal handler type
# Date: 30 Nov 1998 19:46:24 +0100
# Message-ID: <864srhhvcv.fsf@lion.plab.ku.dk>

signal_t='void'
d_voidsig='define'

# set libperl.so.X.X for 2.2.X
case "$osvers" in
2.2*)
    # unfortunately this code gets executed before
    # the equivalent in the main Configure so we copy a little
    # from Configure XXX Configure should be fixed.
    if $test -r $src/patchlevel.h;then
       patchlevel=`awk '/define[ 	]+PERL_VERSION/ {print $3}' $src/patchlevel.h`
       subversion=`awk '/define[ 	]+PERL_SUBVERSION/ {print $3}' $src/patchlevel.h`
    else
       patchlevel=0
       subversion=0
    fi
    libperl="libperl.so.$patchlevel.$subversion"
    unset patchlevel
    unset subversion
    ;;
esac

# This script UU/usethreads.cbu will get 'called-back' by Configure 
# after it has prompted the user for whether to use threads.
cat > UU/usethreads.cbu <<'EOCBU'
case "$usethreads" in
$define|true|[yY]*)
        lc_r=`/sbin/ldconfig -r|grep ':-lc_r'|awk '{print $NF}'|tail -1`
        case "$osvers" in  
	2.2.8*|3.*|4.*)
	      if [ ! -r "$lc_r" ]; then
	      cat <<EOM >&4
POSIX threads should be supported by FreeBSD $osvers --
but your system is missing the shared libc_r.
(/sbin/ldconfig -r doesn't find any).

Consider using the latest STABLE release.
EOM
		 exit 1
	      fi
	      ldflags="-pthread $ldflags"
	      ;;
        2.2*)
              cat <<EOM >&4
POSIX threads are not supported well by FreeBSD $osvers.

Please consider upgrading to at least FreeBSD 2.2.8,
or preferably to 3.something.

(While 2.2.7 does have pthreads, it has some problems
 with the combination of threads and pipes and therefore
 many Perl tests will either hang or fail.)
EOM
	      exit 1
	      ;;
	 *)   cat <<EOM >&4
I did not know that FreeBSD $osvers supports POSIX threads.

Feel free to tell perlbug@perl.com otherwise.
EOM
	      exit 1
	      ;;
	esac

	set `echo X "$libswanted "| sed -e 's/ c / c_r /'`
	shift
	libswanted="$*"
	# Configure will probably pick the wrong libc to use for nm scan.
	# The safest quick-fix is just to not use nm at all...
	usenm=false

        case "$osvers" in
        2.2.8*)
            # ... but this does not apply for 2.2.8 - we know it's safe
            libc="$lc_r"
            usenm=true
           ;;
        esac

        unset lc_r
esac
EOCBU