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Fwd: Visubility features on GNUstep


From: Ricardo Santos
Subject: Fwd: Visubility features on GNUstep
Date: Wed, 30 Nov 2011 16:20:43 -0200

It worked, thanks, I have posted on a blog my experience just in case anyone else need help. Check at objectivecnoob.blogspot.com.

Thanks,

Ricardo


On Tue, Nov 29, 2011 at 12:07 PM, Riccardo Mottola <riccardo.mottola@libero.it> wrote:
Hi,

you are trying to write a pure obj-c file, without gnustep, when you use objc.h.

Instead, when you use Foundation.h, you are accessing the Foundation, part of Openstep /Cocoa.

For the latter, the most convenient way is to write and use a gnustep makefile. Everything is set up for you already then. Please try with that, so you get hands on. Afterwards, if you feel the need to strip down, you may try yourself the hassle of setting up everything for yourself. But, honestly, it is not worth the trouble usually.

For a command line program (like hello world) use "Tool" as a reference.

Check here:
http://wiki.gnustep.org/index.php/Writing_Makefiles

and the releated gnustep make reference.

Especially http://www.gnustep.it/nicola/Tutorials/WritingMakefiles/ will be of use for you!

Riccardo


On 11/29/2011 02:38 PM, Ricardo Santos wrote:
Hello everyone!

  I am a noob in GNUstep and I am trying to compile my first objective-c file.

  This is going to be a quite long email, since I will try to describe in as many details as I can the installation process I did.

  I am using a Windows environment, so I downloaded GNUstep MSYS System version 0.29.0 and installed, with default path, in my computer. After that, I installed GNUstep Core version 0.29.0, with default configurations as well. Just to be on the safe side, I installed, then, GNUstep Devel version 1.4.0, with default configurations too.

  Then I went to the Start menu and launched the Shell software. After that, I decided it was better to test the install, I wrote the following code:


#include <stdio.h>

//Now, testing the Objective-c libraries.
#include <objc/objc.h>

int main (void)
{

prinf("All right and ready to go!");

return(0);
}

  And I got an error saying "objc/objc.h: No such file or directory". I tried with "#include <Foundation/Foundation.h>" as well and I got the same error, just with instead "objc/objc.h" it was written "Foundation/Foundation.h".

  Then, I tried to find the header files inside GNUstep and could not find it. After some exploration, I found that my / folder is under C:\GNUstep\msys\1.0\ and the headers are under C:\GNUstep\GNUstep\System\Library\Headers\objc, so I have no visibility to objc.h, Foundation.h or any other header, so I can't use any arguments to show gcc where to look for the files.

  Do anyone know what can I do to solve my problem? I am sorry to have made such an enourmous email, but I am trying to compile my code for quite a while now and looking around for the solution of my problem without result, and been getting increasingly frustrated.

Looking forward to hear from anyone.

Ricardo Santos
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