Re: clues to statically building octave w/extensions?

[A. Danial]

Dirk, Christoph, Bill, John, Andy:

Thank you all for your posts.  With your help, rebuiding octave with
statically linked extensions was easy.  Here is how I rebuilt octave
with oregonator.cc:

Starting from the octave-2.1.34 directory:

1.  Built the original, unmodified octave distribution.

2.  Copied oregonator.cc to the DLD-FUNCTIONS directory:

    cp examples/oregonator.cc  src/DLD-FUNCTIONS

3.  Replaced line 1, "#include <octave/oct.h>" in oregonator.cc with 
    explicit includes as described:
    
    vi src/DLD-FUNCTIONS/oregonator.cc 
    # on line 1 of oregonator.cc, replaced
          #include <octave/oct.h>
    # with 
          #ifdef HAVE_CONFIG_H
          #include <config.h>
          #endif
          #include "defun-dld.h"
          #include "error.h"
          #include "gripes.h"
          #include "oct-obj.h"
          #include "utils.h"

4.  Appended oregonator.cc to the definition of the Makefile variable
    DLD_XSRC:
    
    vi src/Makefile
    # search for 'DLD_XSRC'
    # appended oregonator.cc after the last entry (time.cc) of DLD_XSRC

5.  rm src/octave

6.  make

The executable src/octave now has the function oregonator statically
built in.

jwe> I assume you are using 2.1.x.  As Dirk said, you can drop the
jwe> functions in with the sources, and that's about it.  If you put the
jwe> functions in the src/DLD-FUNCTIONS directory, then you would also
jwe> need to add the names of the .cc files to the DLD_XSRC list in
jwe> src/Makefile.in and then run
jwe> 
jwe>   CONFIG_FILES=src/Makefile ./config.status
jwe>   make
jwe> 
jwe> in the top-level build directory.

I omitted the CONFIG_FILES= step because it overwrites the Makefile 
modifications for the variable DLD_XSRC.  Maybe I'm doing it at the
wrong time?

jwe> But a better solution would be to figure out why dynamic linking
jwe> doesn't work, and fix the real problem.  I don't think it is because
jwe> -rdyanmic is not recognized, or anything wrong with your gcc.

jwe> I no longer have access to a system running AIX 4.x, so can you please
jwe> help us solve this problem?

Without a doubt, dynamic linking is way more convenient.  I'll gladly
lend assistance to try to fix dynamic linking on AIX.  I don't really
know where to start or what to look for but will try any commands you
suggest and will report the results.

Speaking of problems on AIX, I should mention that the make process
goes smoothly except for the very last step where the octave executable
is generated.  The link step fails because it cannot locate the library 
dlfcn.  To fix the problem I cut and paste the giant c++ command to a 
separate file & edit that file by inserting "-L../dlfcn" right before 
"-ldfcn".  I then execute the file, and the link succeeds.

For your curiosity, this is what the c++ command looks like after I've
edited it.  The original c++ line generated by the makefile has the same
items in the same order, except it lacks the "-L../dlfcn" you'll find at
the beginning of the 4th from last line.

c++  -I. -I.. -I../liboctave -I../src -I../libcruft/misc -I../dlfcn          \
-I../dlfcn -I../glob -I../glob -DHAVE_CONFIG_H -mminimal-toc                 \
-fno-implicit-templates -g -O2 -Wall -L.. -g -o octave octave.o builtins.o   \
ops.o ../libcruft/blas-xtra/xerbla.o  balance.o  besselj.o  betainc.o        \
chol.o  colloc.o  dassl.o  det.o  eig.o  expm.o  fft.o  fft2.o  filter.o     \
find.o  fsolve.o  gammainc.o  getgrent.o  getpwent.o  getrusage.o  givens.o  \
hess.o  ifft.o  ifft2.o  inv.o  log.o  lpsolve.o  lsode.o  lu.o  minmax.o    \
pinv.o  qr.o  quad.o  qz.o  rand.o  schur.o  sort.o  svd.o  syl.o  time.o    \
oregonator.o -L../liboctave -L../libcruft -L../src  ../src/liboctinterp.a    \
../liboctave/liboctave.a  ../libcruft/libcruft.a  ../readline/libreadline.a  \
../kpathsea/libkpathsea.a ../glob/glob.o ../glob/fnmatch.o                   \
-L../dlfcn -ldlfcn -ll -lld -ll -lcurses  -lm  -lg2c -lm                     \
-L/usr/local/gcc/lib/gcc-lib/rs6000-ibm-aix4.3.2.0/2.95.2                    \
-L/usr/local/gcc/lib -lm                                                     \
/usr/local/gcc/lib/gcc-lib/rs6000-ibm-aix4.3.2.0/2.95.2/libgcc.a

     -- Al



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