Patch to src/Makefile.in for GPERF

[Thomas D. Dean]

Here is a patch.  I tested it with and without gperf.  Then, removed
oct-gperf.h and did another build.  Seems Ok.  I don't know about
systems other than Linux with sh.  If there is a gperf before the real
one in the path, a simple test will fail.  For example, a shell script
named gperf, containing
  #! /bin/sh
  exit 0

To get around this, I used grep.  I added AC_PROG_GREP to configure.in
and, added GREP to Makeconf.in.


2009-02-05 Thomas D. Dean <tomdean at speakeasy.org>

        * configure.in Added AC_PROG_GREP to require grep
        * Makeconf.in  Added definition of GREP
        * src/Makefile.in Added test for executable gperf in making
          oct-gperf.h using GREP



tomdean
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