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#! /bin/sh
# config/missing
# This is *not* the GNU `missing' script, although it is similar in
# concept. You can call it from the makefiles to get consistent
# behavior when certain utility programs are missing.
case $1 in
flex|bison)
# `missing flex|bison <input> <output>'
input=$2
output=$3
if test -f "$output"; then
echo "\
***
WARNING: \`$1' is missing on your system. You should only need it
if you changed the file \`$input'; these changes will not take effect.
You can get $1 from a GNU mirror site.
***" >&2
echo "touch $output"
touch "$output"
exit 0
else # ! test -f $output
echo "\
***
ERROR: \`$1' is missing on your system. It is needed to create the
file \`$output'. You can either get $1 from a GNU mirror site
or download an official distribution of PostgreSQL, which contains
pre-packaged $1 output.
***" >&2
exit 1
fi
;;
perl)
# `missing perl'
echo "\
***
ERROR: Perl is missing on your system. It is needed unless you are building
from an unmodified official distribution of PostgreSQL.
***" >&2
exit 1
;;
*)
# `missing something-or-other'
echo "\
***
ERROR: \`$1' is missing on your system.
***" >&2
exit 1
;;
esac