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#! /bin/sh
# Use stat to find a writable directory on a file system different from that
# of the current directory. If one is found, create a temporary directory
# inside it.
test "${CANDIDATE_TMP_DIRS+set}" = set \
|| CANDIDATE_TMP_DIRS="$TMPDIR /tmp /var/tmp /usr/tmp $HOME"
other_partition_tmpdir=
dot_mount_point=`stat -c %d .`
for d in $CANDIDATE_TMP_DIRS; do
# Skip nonexistent directories.
test -d $d || continue
d_mount_point=`stat -L -c %d $d`
# Same partition? Skip it.
test x$d_mount_point = x$dot_mount_point && continue
# See if we can create a directory in it.
if mkdir "$d/tmp$$" > /dev/null 2>&1; then
other_partition_tmpdir="$d/tmp$$"
break
fi
done
if test -z "$other_partition_tmpdir"; then
cat <<EOF 1>&2
**************************************
This test requires a writable directory on a different
disk partition, and I couldn't find one. I tried these:
$CANDIDATE_TMP_DIRS
Set your environment variable CANDIDATE_TMP_DIRS to make
this test use a different list.
**************************************
EOF
#'
fi
test "$VERBOSE" = yes && set -x
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