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gperf: compiling Octave from CVS sources
From: |
John W. Eaton |
Subject: |
gperf: compiling Octave from CVS sources |
Date: |
Sat, 9 Dec 2000 01:28:16 -0600 |
On 9-Dec-2000, John Smith <address@hidden> wrote:
| I have collected Octave from CVS on 8 December 2000.
|
| The ./configure is complaining about my gperf, and ultimately c++ complains
| about lex.cc in a way which looks related.
|
| I have installed a new gperf; it says
|
| bash:> gperf --version
| GNU gperf 2.7.2
|
| ./configure is saying
|
| checking for gperf... gperf
| configure: warning: I found gperf, but it does not support all of
| the following options: -t -C -D -E -G -L ANSI-C -H -N;
| you need gperf 2.7 or a more recent version
|
|
| I have started to search out an explanation: I think ./configure is
| doing something like:
|
| #! /bin/sh
|
| echo "%{
| %}
| %%
| " | /usr/local/bin/gperf -t -C -D -E -G -L ANSI-C -H octave_kw_hash -N
octave_kw_lookup
|
| which is giving the error message
|
| Empty input key is not allowed.
| To recognize an empty input key, your code should check for
| len == 0 before calling the gperf generated lookup function.
|
| Can you give any advice?
Please try the following patch. It sends
%{
%}
%%
foo
to gperf.
You'll need to rerun autoconf, remove config.cache, run configure
again, and probably also remove any incorrect version of
src/oct-gperf.h that you may have generated.
Thanks,
jwe
2000-12-09 John W. Eaton <address@hidden>
* aclocal.m4: Give gperf a keyword, to avoid complaints from newer
versions.
Index: aclocal.m4
===================================================================
RCS file: /usr/local/cvsroot/octave/aclocal.m4,v
retrieving revision 1.49
diff -u -r1.49 aclocal.m4
--- aclocal.m4 2000/10/31 20:03:19 1.49
+++ aclocal.m4 2000/12/09 07:26:04
@@ -875,7 +875,7 @@
if echo "%{
%}
%%
-" | $GPERF -t -C -D -E -G -L ANSI-C -H octave_kw_hash -N octave_kw_lookup >
/dev/null 2>&1; then
+foo" | $GPERF -t -C -D -E -G -L ANSI-C -H octave_kw_hash -N octave_kw_lookup >
/dev/null 2>&1; then
true
else
GPERF=""