Resolved - build failure of octave-2.1.5x under Cygwin

[Paul Thomas]

Many thanks to Geraint Bevan, David Billinghurst and Paul Kienzle for 
help on dealing with the problem.  Paul came up with the solution:

"Try modifying the SH_LDFLAGS line in octave/Makeconf to be:

SH_LDFLAGS = -shared 
-Wl,--export-all-symbols,--enable-runtime-pseudo-reloc,--enable-auto-image-base

I'm not sure the --enable-auto-image-base does anything.  It was an attempt
to address problems with fork, but my eventual solution was to not use
fork.  I don't think --enable-auto-import is necessary either.  But you
might need to add it later.

According to my ld man page, --enable-runtime-pseudo-reloc is the
default.  I'm using:

        $ ld -v
        GNU ld version 2.13.90 20030308"

In fact, following the man entry for LD, this was the first thing that I 
tried.  However, I went and modified the Makeconf BEFORE running 
configure.  Duuuh!

My ld is the version of 20031129 and --disable-runtime-pseudo-reloc is 
the default!

Still stranger is that in desperation last night, I downloaded Cygwin 
and octave-2.1.53 to a pristine PC.  The build of octave worked a treat 
without Paul's fix.  The differences?  Well the failed system is Windows 
2000 and Cygwin is loaded with X and KDE desktop.  The good system is 
Windows 98 without X or KDE.  I will investigate further.....

Paul Thomas



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