Re: Cannot find library under Windows

[Eduardo Lopez <edulopez hotpop com>]

laurent waro escribió:

> Well,
> if someone try to programs with GTK under windows by DevC++ (which 
> provide actually a package for GTK+), is it necessary to install too 
> the pakage founded on http://www.gimp.org/~tml/gimp/win32?
> On this site, the webmaster notes that it's necessary to :
>
> "*With gcc, you should use the -mno-cygwin and -mms-bitfields flags.* 
> Using any other gcc setup will not work. This is because od struct 
> field alignment If you don't understand what I am talking about, just 
> trust me."
>
> So, my last question is : Does DevC++ (wich use gcc) make it (I mean 
> *use the -mno-cygwin and -mms-bitfields flags)* automatically or must 
> we do it ourself?
No. You must do it yourself.

> Thanks for your help and clarification about that. Thanks toTor 
> Lillqvist for his intervention in this mailing list!
>
> Oups! Sorry for my horrible English, I'm french. Greets from Réunion 
> Island!
>
> _______________________________________________
> gtk-app-devel-list mailing list
> gtk-app-devel-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list

In www.dropline.net I fund this tutorial  that help me to try Dev-C++ 
and GTK:


"Greetings. This is my humble attempt at writing an easy to follow 
tutorial on how to install a GTK+ 2.x.x and Dev-C++ 5 environment. I 
know there are already two methods that are outlined on this site, but 
as both of them were ambiguous to me and led me around for a few hours, 
I figured I'd see if I could make it a bit more explicit. As of the time 
of writing the current relevant versions are Dev-C++ 4.9.8.5 and GTK+ 
2.2.4.1.

--Installing Dev-C++

At this point, Dev-C++ 5 is still "beta" because it is implements GCC 
3.2, a new version of the C compiler which has incompatabilities with 
older code. I haven't done any real testing yet, but I believe the 
DevPak's for GTK+ provided by bloodshed are outdated and _do not_ run on 
their newer version of the software. If you are going to use Dev-C++ 5 
(which is what I am demonstrating here) make sure you don't use the 
DevPaks from the Dev-C++ resource site; I had alot of trouble with it 
and eventually had to wipe everything and reinstall.

Grab Dev-C++ 5 from here: http://www.bloodshed.net/dev/devcpp.html

The download link is half way down the page. After you've downloaded it, 
run the self extracter yadda yadda until it is installed. Remember the 
directory you have installed it to, in our example c:\Dev-Cpp\. Then 
start up Dev-C++, go to Tools->"Check for Updates/Packages", and update 
Dev-C++ to the newest version available. Afterwards exit the program.

--Installing GTK+

Grab the two GTK+ installers for the Runtime Environment and the 
Development Environment from the download section of this site 
(http://www.dropline.net/gtk/download.php). Install the Runtime first, 
to any directory (but remember where it is), in this example 
c:\gtk-runtime\. Now install the Development Environment, but make sure 
you change the install path to the _root directory of Dev-C++_! In this 
example, that would be c:\Dev-C++. This will set up all the 
libs/includes in the correct folders to be used later by Dev-C++. once 
its done, we technically have all the code in place, we just have to 
configure our Dev-C++ project.

--Configuring a project

Start Dev-C++ and create a new project. Choose a name and location 
(doesnt really matter where) and open up a dos app. It should pop up 
with the default main.cpp - Now go to Project -> Project Options. Click 
the Directories tab, and then the Include Directories tab. You can add 
include directories to this listing by clicking the folder in the lower 
right-hand corner, browsing for the directory, then hitting Add. Go 
ahead and do so to add the following relative directory paths (i.e. 
"include\bob" would mean C:\Dev-Cpp\include\bob in our example) to the list:

include\gtk-2.0
lib\gtk-2.0\include
include\atk-1.0
include\glib-2.0
include\pango-1.0
lib\glib-2.0
lib\glib-2.0\include

After adding the above and verifying they are correct, click the upper 
tab Parameters. If you are going to be coding in C++, add the following 
to the
C++ compiler" box:


-mno-cygwin -mms-bitfields


This will make sure it doesnt find incorrectly sized windows and such.

Also add the following to the Linker box:



-lgtk-win32-2.0 -lgdk-win32-2.0 -lgthread-2.0 -lgdi32 -lole32 -luuid 
-latk-1.0 -lgdk_pixbuf-2.0 -lpangowin32-1.0 -lgdi32 -lpango-1.0 
-lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -lintl -liconv



That will add in all the libs we need to compile our GTK+ project. Now 
we need to tell the compiler where the runtime libs are so it can run 
the GTK+ program after we compile/link it. Hit ok to close out of that 
tab and head to Tools-> Compiler Options. Under the Directories tab, add 
an entry pointing to the \lib directory of the Runtime Environment you 
installed earlier, in our case C:\gtk-runtime\lib. Hit Ok to close out 
of that and you should be good to go!

Write some GTK+ application in your .cpp, remembering to include 
<gtk/gtk.h>. You might want to try the Hello World over at gtk.org 
(under the 2.0 tutorial) just for testing. If everything went correctly, 
you should have a GTK+ enabled Dev-C++ IDE. You might have some problems 
with errors telling you the program cannot find certain DLL's like iconv 
and libglib-2.0-0, in which case you have two options: copy them over to 
the project directory to temporarily test that it is indeed working, or 
edit the registry to let windows know where the program's dll's are 
located."

I hope that helps you.

Have a nice day.
Eduardo Lopez