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Hi Tony,
Thanks for your answer.
Le 09/02/2013 03:38, Tony Theodore a écrit :
Hi Ronan,
Hello,
For your information, I have investigated the possibility of
using mxe for building our software relying on shared
libgcc.
I have forked mxe in order to apply very few changes : git://github.com/rtrepos/mxe.git
It worked, not completely yet and only for our software, but
exceptions sent by plugins are now caught by the main
application.
I don't know much about shared libgcc, but the docs [1]
indicate that it should be safe to enable in the gcc build
since all the other package builds will use the static version
when directed. It's also curious that libstdc++ is shared by
default, but can be partially linked statically to freeze the
version of libstdc++.
Yes, I think so, but I'm not sure this is a good strategy to mix the
two of them.
Nevertheless I had to use the latest
repositories of mingw during Mingw installation on windows.
The version of gcc (4.6) provided by the default
installation is not compatible with the one used by mxe on
ubuntu 12.10 (4.7.0) (?)
Again, I've never tried it, but wouldn't you be able to use
the library created by mxe and ship it with your application?
It's probably somewhere under $(PREFIX)/lib/gcc instead of the
usual $(PREFIX)/$(TARGET)/lib.
I am sorry. I don't understand what you mean.
If you have any comments on this (e.g.
is it a bad idea to use mxe for this purpose) don't
hesitate.
It seems that MXE provides exactly what we need, and even
much more, so thank you for that.
There are plans to support dynamic builds in the future,
but it's still a way off - any feedback in this direction is
helpful so please let us know any hints you find (e.g. would
setting --enable-shared in gmp.mk cause the correct LDFLAGS
to be set?)
The reason I modified the gmp makefile relies only on the fact that
it did not compile after enabling shared libgcc for gcc. And setting
this flag worked. The directive -enable-shared would lead to the
build of a shared library for gmp.
Which is not exactly what we want.
For now, I encounter some difficulties linking to gtkmm static
library. My main application is linked to it, so as the plugins are.
Static variables of gtkmm library are reinitialized while opening
the plugin (dlopen) and this causes an error.
Anyway thank you for your comments.
Ronan
--
Trépos Ronan
INRA unité BIA, équipe MAD, Toulouse
http://carlit.toulouse.inra.fr/wikiz/index.php/Ronan_TREPOS
tel : 05 61 28 51 89
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