readline/m4

[Artur Frysiak]

Hi.
I made readline.m4 macro to search for readline library.
Need tests. On Linux (PLD and RH 5.2) work ok.
Dobrica please test on Digital UNIX and Solaris.

Wiget
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 / / /\ \ (_) __ _  ___| |_  @__mail:  Artur Frysiak
 \ \/  \/ / |/ _` |/ _ \ __|            Rudlice 10
  \  /\  /| | (_| |  __/ |_           98-311 Ostrowek
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             |___/           email:   Wiget at t17.ds.pwr.wroc.pl
PGP key: http://www.t17.ds.pwr.wroc.pl/~wiget/pgp.key
Fingerprint16 = 70 DB E0 2D 12 AB C7 31  B6 58 B5 61 B3 98 B6 E6