3 # This is *not* the GNU `missing' script, although it is similar in
4 # concept. You can call it from the makefiles to get consistent
5 # behavior when certain utility programs are missing.
9 # `missing flex|bison <input> <output>'
12 if test -f "$output"; then
15 WARNING: \`$1' is missing on your system. You should only need it
16 if you changed the file \`$input'; these changes will not take effect.
17 You can get $1 from a GNU mirror site.
22 else # ! test -f $output
25 ERROR: \`$1' is missing on your system. It is needed to create the
26 file \`$output'. You can either get $1 from a GNU mirror site
27 or download an official distribution of PostgreSQL, which contains
28 pre-packaged $1 output.