Re: [GtkGLExt] gtkglextmm and gtkmm-2.4

[Lakin Wecker <lakin wecker gmail com>]

This is quite helpful.  

I'm suspecting that it was the way in which I installed Cygwin and
that I most likely did install cygwin packages which caused the
problem.

I'm currently in the middle of trying to cross compile my stuff from
linux, but I will try this over the next few days.  Thanks for the
info.

Lakin

On Thu, 18 Nov 2004 00:52:06 +1300, Alif Wahid <alif wahid gmail com> wrote:
> Hi Lakin,
> 
> Sorry about the late reply.
> 
> I've built gtkglextmm-1.1 on a clean machine from scratch and still
> could not replicate the problems you're having. Here is as much detail
> as I can summarise concisely about the machine I've used. Remember,
> initially this machine has no Gtk nor GCC related programs installed
> what so ever. Not even cygwin.
> 
> Platform: Windows 2000 running on AMD Duron 700 MHz, 128 MB SRAM.
> 
> 1) Mingw32 GCC 3.3.1 installed along with Dev-Cpp in the folder c:/dev-cpp
> 
> 2) Latest Gtk+-2.4 and GtkGLExt-1.0.5 is installed in c:/gtk as
> distributed at http://gladewin32.sf.net
> 
> 3) Latest Gtkmm-2.4 installed in c:/gtk as distributed by Cedric Gustin
> 
> 4) Minimal Cygwin is installed in c:/cygwin. It's quite important to
> only install the shell environment, autoconf, automake, libtool, perl
> and other basic neccessities. In particular I did not install libiconv
> and libintl development files. These are installed as part of Gtk-2.4
> and we must make sure that libtool only sees that installation and not
> the cygwin installation. Otherwise libtool seems to cause problems
> with dumping UNIX style paths when searching for import libraries. I
> also did not install cygwin version of GCC.
> 
> 5) PATH was modified to start with c:/dev-cpp/bin;c:/gtk/bin; so that
> the right files could be found automatically.
> 
> 6) I ran configure like this
> 
> env CXX='g++ -march=pentium' MAKE=/usr/bin/make AR=/usr/bin/ar
> ./configure --prefix=c:/gtk --disable-static --build=i386-pc-mingw32
> 
> It's important that we use cygwin version of make.exe and ar.exe to
> solve some weird path problems.
> 
> The whole thing then configured and compiled fine.
> 
> However, I ran into problems when compiling the examples. Those
> examples that use Gtk::GL::DrawingArea class, did not compile due to a
> linking error. It appears that this class needs to be rewritten so
> that GCC can resolve its symbol at link-time through the import
> library. Currently GCC doesn't like the way this class is written and
> when third party program is getting linked with the DLL containing
> this class, things fail complaining about 'auto-import' failure.
> 
> Anyway, I would strongly suggest that you totally clean out mingw,
> cygwin, gtk, gtkmm and gtkglext. Make a clean start.
> 
> Make sure to only install cygwin with minimal packages. Take care not
> to install dev files for libiconv and libintl (runtime is ok). They
> seem to clash with the pure win32 versions installed as part of GTK.
> Make sure to install perl and all its libraries as well as autoconf,
> automake and libtool.
> 
> Also, install Mingw32 GCC, GTK-2.4 and Gtkmm-2.4 in their
> corresponding places as it suits you. Add their locations to the PATH
> and try running configu again.
> 
> I hope this helps somewhat. Let me know if you get anywhere with this.
> 
> Cheers.
> 
> 
> 
> Alif.
> 
> --
> "Heaven is the peaceful place on earth...New Zealand."
>      -- Alif Wahid.
>