1) Install the GNU Objective-C compiler:
sudo apt-get install gobjc
2) Write a quick bit of test code:
// hello.m
#import <objc/Object.h>
#import <stdio.h>
@interface Number: Object
{
@public
int number;
}
- (void)printNum;
@end
@implementation Number: Object
- (void)printNum
{
printf("%d\n", number);
}
@end
int main(void)
{
Number *myNumber = [Number new]; // equal to [[Number alloc] init]
myNumber->number = 6;
[myNumber printNum];
return 0;
}
3) Compile it:
gcc -o hello hello.m -Wall -lobjc
4) Run it...!
./hello
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