Problem building MXE Octave with --enable-windows-64

[Julien Bect]

Hello all,

I have a problem when trying to build MXE Octave with --enable-windows-64.

I have recently managed to build the 32 bits installer.

When configuring with --enable-windows-64, I get the following output:

$ make nsis-installer
[build]    nsis

Failed to build package nsis!
------------------------------------------------------------
Contrib/InstallOptions/InstallerOptions.cpp:1095:5: warning: deprecated 
conversion from string constant to 'char*' [-Wwrite-strings]
scons: *** [build/release/InstallOptions/InstallerOptions.o] Error 1
scons: building terminated because of errors.
/media/data/sources/octave/mxe-octave-w64/Makefile:747: recipe for 
target 'build-only-nsis' failed
make[1]: *** [build-only-nsis] Error 2
make[1]: Leaving directory '/media/data/sources/octave/mxe-octave-w64'

Does anybody know what that means ?

I don't know if it matters, but I am trying to build the 64 bits 
installer from a 32 bit Linux system (Ubuntu 14.10 utopic).

@++
Julien