3 # Install an aclocal-style M4 file. A script is needed to do this
4 # because we want to do serial-number checking; newer versions of
5 # macro files should always be preferred.
8 # acinstall file directory installprogram [install-args]...
15 localserial
="`grep '^# serial' $file | sed -e 's/^# serial //g'`"
16 if test -z "$localserial"; then
17 echo "acinstall: no serial number in $file" 1>&2
21 # Maybe if the installed file has no serial number we should just
22 # assume it is ancient.
23 instserial
="`grep '^# serial' $dir/$file | sed -e 's/^# serial //g'`"
24 if test -z "$instserial"; then
25 echo "acinstall: no serial number in $dir/$file" 1>&2
29 if test $localserial -lt $instserial; then
30 # Installed file is newer.