#!/bin/sh -ef
#
# fixup-binconfig - /usr/bin/*-config fixups.
#
# Copyright (C) 2002, 2004  Dmitry V. Levin <ldv@altlinux.org>
#
# 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#

. @RPMCONFIGDIR@/functions
ValidateBuildRoot

WORKDIR="$(mktemp -dt "$PROG.XXXXXXXXXX")"
TMPFILE="$WORKDIR/tmp"
f_saved="$WORKDIR/sav"
f_new="$WORKDIR/new"

exit_handler()
{
	local rc=$?
	trap - EXIT
	rm -rf -- "$WORKDIR"
	exit $rc
}

trap exit_handler SIGHUP SIGINT SIGTERM SIGQUIT SIGPIPE EXIT

: ${RPM_FIXUP_SKIPLIST:=}

fix()
{
	# fetch parameters

	local includedir=
	local libdir=
	local prefix=
	local exec_prefix=
	sed -ne "s/^\(\([a-z_A-Z]*\)\(prefix\|dir\|path\)\)=\(.*\)\$/local \1=\4/pg" "$f" >"$TMPFILE" || return 1

	# source parameters

	[ ! -s "$TMPFILE" ] || . "$TMPFILE" || return 1

	prefix="$(printf %s "$prefix" |tr -s /)"
	exec_prefix="$(printf %s "$exec_prefix" |tr -s /)"
	includedir="$(printf %s "$includedir" |tr -s /)"
	libdir="$(printf %s "$libdir" |tr -s /)"

	# fix cflags

	cat "$f" >"$f_new" &&
	>"$f_saved" ||
	return 1
	while ! cmp -s "$f_new" "$f_saved"; do
		cat "$f_new" >"$f_saved" &&
		subst '/if test /n;s,\(^\|[="'\'']\| \+\)-I/usr\(/local\)\?/include\($\|["'\'']\| \+\),\1\3,g' -- "$f_new" ||
		return 1
	done

	if [ "$includedir" = /usr/include ]; then
		>"$f_saved" || return 1
		while ! cmp -s "$f_new" "$f_saved"; do
			cat "$f_new" >"$f_saved" &&
			subst '/if test /n;s,\(^\|[="'\'']\| \+\)-I\${includedir}\($\|["'\'']\| \+\),\1\2,g' -- "$f_new" ||
			return 1
		done
	fi

	if [ "$exec_prefix" = /usr ]; then
		>"$f_saved" || return 1
		while ! cmp -s "$f_new" "$f_saved"; do
			cat "$f_new" >"$f_saved" &&
			subst '/if test /n;s,\(^\|[="'\'']\| \+\)-I\${exec_prefix}/include\($\|["'\'']\| \+\),\1\2,g' -- "$f_new" ||
			return 1
		done
	fi

	if [ "$prefix" = /usr ]; then
		>"$f_saved" || return 1
		while ! cmp -s "$f_new" "$f_saved"; do
			cat "$f_new" >"$f_saved" &&
			subst '/if test /n;s,\(^\|[="'\'']\| \+\)-I\${prefix}/include\($\|["'\'']\| \+\),\1\2,g' -- "$f_new" ||
			return 1
		done
	fi

	if ! cmp -s "$f_new" "$f"; then
		echo "$fname:"
		diff "$f" "$f_new" ||:
		cat "$f_new" >"$f" || return 1
	fi

	# fix libs

	cat "$f" >"$f_new" &&
	>"$f_saved" ||
	return 1
	while ! cmp -s "$f_new" "$f_saved"; do
		cat "$f_new" >"$f_saved" &&
		subst '/if test /n;s@\(^\|[="'\'']\| \+\)\(-L\|-Wl,-rpath,\)/usr\(/local\)\?/'"$RPM_LIB"'\($\|["'\'']\| \+\)@\1\4@g' -- "$f_new" &&
		subst '/if test /n;s@\(^\|[="'\'']\| \+\)\(-L\|-Wl,-rpath,\)\('$RPM_BUILD_ROOT'\|'$RPM_BUILD_DIR'\|/usr/lib[^/]*/gcc-lib\)["'\'' ]*\($\|["'\'']\| \+\)@\1\4@g' -- "$f_new" ||
		return 1
	done

	if [ "$libdir" = "$RPM_LIBDIR" ]; then
		>"$f_saved" || return 1
		while ! cmp -s "$f_new" "$f_saved"; do
			cat "$f_new" >"$f_saved" &&
			subst '/if test /n;s@\(^\|[="'\'']\| \+\)\(-L\|-Wl,-rpath,\)\${libdir}\($\|["'\'']\| \+\)@\1\3@g' -- "$f_new" ||
			return 1
		done
	fi

	if [ "$exec_prefix" = /usr ]; then
		>"$f_saved" || return 1
		while ! cmp -s "$f_new" "$f_saved"; do
			cat "$f_new" >"$f_saved" &&
			subst '/if test /n;s@\(^\|[="'\'']\| \+\)\(-L\|-Wl,-rpath,\)\${exec_prefix}/'"$RPM_LIB"'\($\|["'\'']\| \+\)@\1\3@g' -- "$f_new" ||
			return 1
		done
	fi

	if [ "$prefix" = /usr ]; then
		>"$f_saved"
		while ! cmp -s "$f_new" "$f_saved"; do
			cat "$f_new" >"$f_saved" &&
			subst '/if test /n;s@\(^\|[="'\'']\| \+\)\(-L\|-Wl,-rpath,\)\${prefix}/'"$RPM_LIB"'\($\|["'\'']\| \+\)@\1\3@g' -- "$f_new" ||
			return 1
		done
	fi

	if ! cmp -s "$f_new" "$f"; then
		echo "$fname:"
		diff "$f" "$f_new" ||:
		cat "$f_new" >"$f" || return 1
	fi
}

rc=0
for f in "$@"; do
	if [ ! -f "$f" ]; then
		Info "$f: file unavailable"
		rc=1
		continue
	fi

	fname="${f#$RPM_BUILD_ROOT}"
	fname="${fname#.}"

	if [ -n "$RPM_FIXUP_SKIPLIST" ]; then
		for skip in $RPM_FIXUP_SKIPLIST; do
			if [ -z "${fname##$skip}" ]; then
				continue 2
			fi
		done
	fi

	t="$(file -b "$f")" || continue

	[ -z "${t##Bourne* shell script text*}" ] || continue

	fix
done

exit $rc