[bpt/guile.git] / pre-inst-guile.in

#!/bin/sh

#	Copyright (C) 2002 Free Software Foundation
#
#   This file is part of GUILE.
#
#   GUILE 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.
#
#   GUILE 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 GUILE; see the file COPYING.  If not, write
#   to the Free Software Foundation, Inc., 59 Temple Place, Suite
#   330, Boston, MA 02111-1307 USA

# NOTE: at some point we might consider invoking this under
# pre-inst-guile-env.  If this will work, then most of the code below
# can be removed.

# NOTE: If you update this file, please update pre-inst-guile-env.in
# as well, if appropriate.

# Commentary:

# Usage: pre-inst-guile [ARGS]
#
# This script arranges for the environment to support, and eventaully execs,
# the uninstalled binary guile executable located somewhere under libguile/,
# passing ARGS to it.  In the process, env var GUILE is clobbered, and the
# following env vars are modified (but not clobbered):
#   GUILE_LOAD_PATH
#   LTDL_LIBRARY_PATH
#
# This script can be used as a drop-in replacement for $bindir/guile;
# if there is a discrepency in behavior, that's a bug.

# Code:

# config
subdirs_with_ltlibs="srfi guile-readline"       # maintain me

# env (set by configure)
top_srcdir="@top_srcdir_absolute@"
top_builddir="@top_builddir_absolute@"

[ x"$top_srcdir"   = x -o ! -d "$top_srcdir" -o \
  x"$top_builddir" = x -o ! -d "$top_builddir" ] && {
    echo $0: bad environment
    echo top_srcdir=$top_srcdir
    echo top_builddir=$top_builddir
    exit 1
}

# handle GUILE_LOAD_PATH (no clobber)
if [ x"$GUILE_LOAD_PATH" = x ] ; then
    GUILE_LOAD_PATH="${top_srcdir}"
else
    # This hair prevents double inclusion.
    # The ":" prevents prefix aliasing.
    case x"$GUILE_LOAD_PATH" in x*${top_srcdir}:*) ;;
      *) GUILE_LOAD_PATH="${top_srcdir}:$GUILE_LOAD_PATH" ;;
    esac
fi
export GUILE_LOAD_PATH

# handle LTDL_LIBRARY_PATH (no clobber)
ltdl_prefix=""
for dir in $subdirs_with_ltlibs ; do
    ltdl_prefix="${top_builddir}/${dir}:${ltdl_prefix}"
done
LTDL_LIBRARY_PATH="${ltdl_prefix}$LTDL_LIBRARY_PATH"
export LTDL_LIBRARY_PATH

# set GUILE (clobber)
GUILE=${top_builddir}/libguile/guile
export GUILE

# do it
exec $GUILE "$@"

# never reached
exit 1

# pre-inst-guile ends here
Commit	Line	Data
99d8f2d5 TTN	1	#!/bin/sh
	2
	3	# Copyright (C) 2002 Free Software Foundation
	4	#
	5	# This file is part of GUILE.
	6	#
	7	# GUILE is free software; you can redistribute it and/or modify
	8	# it under the terms of the GNU General Public License as
	9	# published by the Free Software Foundation; either version 2, or
	10	# (at your option) any later version.
	11	#
	12	# GUILE is distributed in the hope that it will be useful, but
	13	# WITHOUT ANY WARRANTY; without even the implied warranty of
	14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	# GNU General Public License for more details.
	16	#
	17	# You should have received a copy of the GNU General Public
	18	# License along with GUILE; see the file COPYING. If not, write
	19	# to the Free Software Foundation, Inc., 59 Temple Place, Suite
	20	# 330, Boston, MA 02111-1307 USA
	21
07921c76 RB	22	# NOTE: at some point we might consider invoking this under
	23	# pre-inst-guile-env. If this will work, then most of the code below
	24	# can be removed.
	25
	26	# NOTE: If you update this file, please update pre-inst-guile-env.in
	27	# as well, if appropriate.
	28
99d8f2d5 TTN	29	# Commentary:
	30
	31	# Usage: pre-inst-guile [ARGS]
	32	#
	33	# This script arranges for the environment to support, and eventaully execs,
	34	# the uninstalled binary guile executable located somewhere under libguile/,
	35	# passing ARGS to it. In the process, env var GUILE is clobbered, and the
	36	# following env vars are modified (but not clobbered):
	37	# GUILE_LOAD_PATH
ec99391a	38	# LTDL_LIBRARY_PATH
99d8f2d5 TTN	39	#
	40	# This script can be used as a drop-in replacement for $bindir/guile;
	41	# if there is a discrepency in behavior, that's a bug.
	42
	43	# Code:
	44
	45	# config
	46	subdirs_with_ltlibs="srfi guile-readline" # maintain me
	47
	48	# env (set by configure)
ce8b584c	49	top_srcdir="@top_srcdir_absolute@"
99d8f2d5 TTN	50	top_builddir="@top_builddir_absolute@"
	51
	52	[ x"$top_srcdir" = x -o ! -d "$top_srcdir" -o \
	53	x"$top_builddir" = x -o ! -d "$top_builddir" ] && {
	54	echo $0: bad environment
	55	echo top_srcdir=$top_srcdir
	56	echo top_builddir=$top_builddir
	57	exit 1
	58	}
	59
	60	# handle GUILE_LOAD_PATH (no clobber)
	61	if [ x"$GUILE_LOAD_PATH" = x ] ; then
	62	GUILE_LOAD_PATH="${top_srcdir}"
	63	else
	64	# This hair prevents double inclusion.
	65	# The ":" prevents prefix aliasing.
	66	case x"$GUILE_LOAD_PATH" in x${top_srcdir}:) ;;
	67	*) GUILE_LOAD_PATH="${top_srcdir}:$GUILE_LOAD_PATH" ;;
	68	esac
	69	fi
	70	export GUILE_LOAD_PATH
	71
	72	# handle LTDL_LIBRARY_PATH (no clobber)
	73	ltdl_prefix=""
	74	for dir in $subdirs_with_ltlibs ; do
	75	ltdl_prefix="${top_builddir}/${dir}:${ltdl_prefix}"
	76	done
	77	LTDL_LIBRARY_PATH="${ltdl_prefix}$LTDL_LIBRARY_PATH"
	78	export LTDL_LIBRARY_PATH
	79
	80	# set GUILE (clobber)
	81	GUILE=${top_builddir}/libguile/guile
	82	export GUILE
	83
	84	# do it
	85	exec $GUILE "$@"
	86
	87	# never reached
	88	exit 1
	89
	90	# pre-inst-guile ends here