xbps-src: only umount bind mounts in the chroot shell fragment.

xbps-src/xbps-src.sh.in

@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# Copyright (c) 2008-2010 Juan Romero Pardines.
+# Copyright (c) 2008-2011 Juan Romero Pardines.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -23,6 +23,7 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #-
+
 : ${XBPS_CONFIG_FILE:=@@XBPS_INSTALL_ETCDIR@@/xbps-src.conf}
 
 : ${progname:=$(basename $0)}
@@ -33,19 +34,6 @@
 : ${xbps_machine:=$(uname -m)}
 : ${XBPS_UTILS_REQVER:=20100511}
 
-trap '_MASTERDIR=${XBPS_MASTERDIR} sighandler_exit $?' 0 INT QUIT
-
-sighandler_exit()
-{
-	# Always unmount in case we failed before!
-	if [ -z "$in_chroot" ]; then
-		cd ${_MASTERDIR} && \
-        		env MASTERDIR="${_MASTERDIR}" \
-			@@XBPS_INSTALL_LIBEXECDIR@@/xbps-src-chroot-helper umount
-	fi
-	exit $1
-}
-
 check_reqhost_utils()
 {
 	[ -n "$in_chroot" ] && return 0