From bug-request at octave dot org Sun Mar  6 23:38:42 2005
Subject: gcc cannot find "mex.h" or "mex.o"
From: "Edward C. Jones" <edcjones at comcast dot net>
To: bug-octave at bevo dot che dot wisc dot edu
Date: Sun, 6 Mar 2005 23:02:38 -0600

I am trying to install WaveLab with Octave. I have an up-to-date Debian sid
system on a PC. I have installed Debian packages "octave2.1", version
2.1.67-1 and "octave-forge", version 2004.11.16-6.
Yto 2.1.67 is very recent.

As root, I start octave, then run "startup". I get the error messages like:

building CPAnalysis.c
+ mkoctfile -DHAVE_OCTAVE_21 -v -o CPAnalysis.oct mex_CPAnalysis.cc
/usr/lib/octave/2.1.66/site/oct/i386-pc-linux-gnu/octave-forge/mex.o
-I/usr/lib/octave/2.1.66/site/oct/i386-pc-linux-gnu/octave-forge -DV4
CPAnalysis.c
/usr/bin/gcc -c -fPIC -I/usr/include/octave-2.1.67
-I/usr/include/octave-2.1.67/octave
-I/usr/lib/octave/site/oct/api-v13/i386-pc-linux-gnu/octave-forge -mieee-fp
-O2 -I/usr/lib/octave/2.1.66/site/oct/i386-pc-linux-gnu/octave-forge
-DHAVE_OCTAVE_21 -DV4 CPAnalysis.c -o CPAnalysis.o

It is looking for mex.h and mex.o in the wrong directory. The correct 
directory is

/usr/lib/octave/site/oct/api-v13/i386-pc-linux-gnu/octave-forge

Note the "2.1.66"s.



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