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kc3-lang/automake/acinstall

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  • Author : Tom Tromey
    Date : 1996-11-20 07:29:54
    Hash : 2775be7a
    Message : Allow commentary on serial line

  • acinstall 
  • #! /bin/sh

# Install an aclocal-style M4 file.  A script is needed to do this
# because we want to do serial-number checking; newer versions of
# macro files should always be preferred.

# Usage:
#  acinstall file directory installprogram [install-args]...

file="$1"
dir="$2"
shift
shift

localserial=`grep '^# serial ' $file | sed -e 's/^# serial \([0-9][0-9]*\).*$/\1/; q'`
if test -z "$localserial"; then
   echo "acinstall: no serial number in $file" 1>&2
   exit 1
fi

# Maybe if the installed file has no serial number we should just
# assume it is ancient.
instserial=`grep '^# serial ' $dir/$file | sed -e 's/^# serial \([0-9][0-9]*\).*$/\1/; q'`
if test -z "$instserial"; then
   echo "acinstall: no serial number in $dir/$file" 1>&2
   exit 1
fi

if test $localserial -lt $instserial; then
   # Installed file is newer.
   exit 0
fi

# Install the file.
$* $file $dir/$file