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Re: [Mingw-cross-env-list] tryiing to compile Octave

From: Tony Theodore
Subject: Re: [Mingw-cross-env-list] tryiing to compile Octave
Date: Sat, 20 Apr 2013 14:15:12 +1000

On 19/04/2013, at 11:19 PM, Alois Schloegl <address@hidden> wrote:
> Yes, it is possible. It seems compilation works fine, but there is a
> huge number of "undefined references" when trying to link (the log file
> has 356493 lines, only the first 7283 lines are related to configuration
> and compilation,

There are some minor issues with the configure stage that you want to clean up:

- checking for X... libraries /usr/lib, headers /usr/include
- checking for 
/home/schloegl/src/mxe.github.schloegl/usr/i686-pc-mingw32/bin/pcre-config... no
- configure: WARNING: You used --enable-dl but not --enable-shared.
- configure: WARNING: cURL library not found.  The ftp objects, urlread and 
urlwrite functions will be disabled.
- configure: WARNING: You used the EXPERIMENTAL --enable-openmp option.

Apart from --enable-dl, none of these are likely to be significant, but it 
doesn't hurt to remove the warnings until you get a successful build.

> the remaining lines concern "undefined references").
> The start and end of that section is shown below. The full log is
> available here : http://pub.ist.ac.at/~schloegl/download/octave.log.txt.gz
> Sometimes the order of the linked libraries is important. Do you think
> that might be the case here, too?
> /bin/bash ../libtool --tag=CC   --mode=link i686-pc-mingw32-gcc -g -O2

The vast majority of undefined references [1] seem to be c++ related (e.g. 
'std::', 'operator', '__cxa'). The above should be invoked as 



[1] grep 'undefined reference' octave.log | gsed -n 's,.*undefined reference to 
\(.*\),\1,p' | sort | uniq

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