Hm, I'm not sure what is going on. Your install procedure looks correct and
I've used a very similar procedure on Ubuntu 11.04 successfully.
Here's another test program you could try which avoids constant strings:
#import <Foundation/Foundation.h>
#include <stdio.h>
int main(int argc, const char **argv)
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
printf("testing NSNumber: %d\n", [[NSNumber numberWithInt: 3]
intValue]);
[pool release];
return 0;
}
Also, could you try running make with "make messages=yes"? This will log the
full command line used to run gcc.
How did you install the objective-C compiler and runtime? Just through the
gobjc package?
-Eric
On 2011-09-25, at 11:03 AM, Jackie Gleason wrote:
> Sorry, I was trying not to send the whole code, probably should have included
> that.
>
> Anyway still looking for an answer, I believe it has something to do with the
> way I am compiling from source since I don't see a Libraries folder under
> /usr/GnuStep
>
>
> #include <stdio.h>
> #import <Foundation/Foundation.h>
>
> /*
> * The next #include line is generally present in all Objective-C
> * source files that use GNUstep. The Foundation.h header file
> * includes all the other standard header files you need.
> */
>
> /*
> * Declare the Test class that implements the class method (classStringValue).
> */
> @interface Test
> + (const char *) classStringValue;
> @end
>
> /*
> * Define the Test class and the class method (classStringValue).
> */
> @implementation Test
> + (const char *) classStringValue;
> {
> return "This is the string value of the Test class";
> }
> @end
>
> /*
> * The main() function: pass a message to the Test class
> * and print the returned string.
> */
> int main(void)
> {
> NSString* s = @"Hello, world!";
> NSLog(s);
> //printf("%s\n", [Test classStringValue]);
> return 0;
> }
>
> Same issue is still happening
>
> On Sun, Sep 25, 2011 at 12:51 PM, Eric Wasylishen <[email protected]>
> wrote:
> Hey,
> To use NSLog, NSString, and even constant strings (@""), you need to import
> the GNUstep base headers.
> Adding:
>
> #import <Foundation/Foundation.h>
>
> to the top of your source.m file should fix the problem. :-)
> Eric
>
> On 2011-09-24, at 10:56 AM, Jackie Gleason wrote:
>
> > I am trying to compile the following code
> > Environment: Ubuntu 11.04 x64
> >
> > int main(void)
> > {
> >
> > NSString* s = @"Hello, world!";
> > NSLog(s);
> > //printf("%s\n", [Test classStringValue]);
> > return 0;
> > }
> >
> > I install and Compile GNUstep by checking out the anonymous core, then
> > compiling in the order make, base, gui, back. I compile all of them using
> > the following command (under sudo shell)..
> >
> > ./configure --prefix=/usr/GnuStep
> > make
> > make install
> >
> > After make I run the following...
> > . /usr/GnuStep/share/GNUstep/Makefiles/GNUstep.sh
> >
> > Finally I create the following GNUMakeFile...
> >
> > include $(GNUSTEP_MAKEFILES)/common.make
> >
> > TOOL_NAME = LogTest
> > LogTest_OBJC_FILES = source.m
> >
> > include $(GNUSTEP_MAKEFILES)/tool.make
> >
> > But when I try running I get the following message...
> > ~/Development/Code/personal/GnuStep/helloWorld$ make
> > This is gnustep-make 2.6.1. Type 'make print-gnustep-make-help' for help.
> > Making all for tool LogTest...
> > Compiling file source.m ...
> > source.m: In function ‘main’:
> > source.m:36:3: error: cannot find interface declaration for
> > ‘NXConstantString’
> > make[3]: *** [obj/LogTest.obj/source.m.o] Error 1
> > make[2]: *** [internal-tool-all_] Error 2
> > make[1]: *** [LogTest.all.tool.variables] Error 2
> > make: *** [internal-all] Error 2
> >
> > the ls for the folder is...
> > :/usr/GnuStep# ls
> > bin share
> >
> > Any help would be very appreciated.
> > _______________________________________________
> > Gnustep-dev mailing list
> > [email protected]
> > https://lists.gnu.org/mailman/listinfo/gnustep-dev
>
>
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