Ok...I attempted to use a makefile, and received the following error.
$ make
Making all for tool Fraction...
Linking tool Fraction ...
C:/GNUstep/mingw/bin/../lib/gcc/mingw32/3.4.5/../../../libmingw32.a(main.o):
main.c:(.text+0x104): undefined reference to [EMAIL PROTECTED]'
collect2: ld returned 1 exit status
make[1]: *** [obj/Fraction.exe] Error 1
make: *** [Fraction.all.tool.variables] Error 2
The contents of my makefile are...
include $(GNUSTEP_MAKEFILES)/common.make
TOOL_NAME = Fraction
LogTest_OBJC_FILES = main.m
include $(GNUSTEP_MAKEFILES)/tool.make
My source is as follows...
#import <Foundation/Foundation.h>
#import <Foundation/NSObject.h>
#import <stdio.h>
@interface Fraction NSObject {
int numerator;
int denominator;
}
-(void) print;
-(void) setNumerator: (int) n;
-(void) setDenominator: (int) d;
-(int) numerator;
-(int) denominator;
@end
@implementation Fraction
-(void) print {
printf("%i/%i", numerator, denominator );
}
-(void) setNumerator: (int) n {
numerator = n;
}
-(void) setDenominator: (int) d {
denominator = d;
}
-(int) denominator {
return denominator;
}
-(int) numerator {
return numerator;
}
@end
int main( int argc, const char *argv[] ) {
// create a new instance
Fraction *frac = [[Fraction alloc] init];
// set the values
[frac setNumerator: 1];
[frac setDenominator: 3];
// print it
printf( "The fraction is: " );
[frac print];
printf( "\n" );
// free memory
[frac release];
return 0;
}
I attempted the example given in the Makefile link you supplied below and it
works perfectly so obviously I am doing something wrong. Again, any help
would be greatly appreciated.
Thanks
On Fri, Feb 29, 2008 at 11:47 AM, Adam Fedor <[EMAIL PROTECTED]> wrote:
>
> On Feb 29, 2008, at 7:09 AM, Darin Bray wrote:
>
> > all of the pieces downloaded for GNUStep (for some reason the
> > Objective-C library is missing). I ended up downloading the Core
> > and System Windows installers from the GNUStep website. These
> > installed fine, and appear to have all the pieces. However I am
> > still having issues compiling/linking programs. I believe my
> > problem lies in the include directories for my headers and
> > libraries, possibly my different PATH variables. Could someone who
> > is using this setup give me an example of their gcc command line to
> > build an application, as well as possibly your environment variables
> > I would greatly appreciate it.
>
> Don't try to call gcc directly - it's too hard. Just use makefiles.
> See the tutorials here:
>
> http://www.gnustep.it/nicola/Tutorials/WritingMakefiles/
>
> also see docs here:
>
> http://www.gnustep.org/developers/documentation.html
>
>
>
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