Objective-c – compiling Objective-C on Ubuntu using GCC

gccgnustepobjective cUbuntu

ok i have this program here:

int main(int argc, const char * argv[])
{
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    NSLog (@"Hello world!");
    [pool drain];
    return 0;
}

the problem is when i compile it with the command
"gcc -framework Foundation prog1.m -o prog1"

i get this:
"gcc: error trying to exec 'cclobj' : execvp: No such file or Directory"

do i need to install any packages??
"

Best Answer

Its not the only way but GNUStep worked for me. For a good writeup on setting it up look here.

Note: Your exact error is listed about halfway down that page. Your missing package seems to be 'gobjc'.

An option:

[NSString stringWithFormat:@"%@/%@/%@", one, two, three];

Another option:

I'm guessing you're not happy with multiple appends (a+b+c+d), in which case you could do:

NSLog(@"%@", [Util append:one, @" ", two, nil]); // "one two"
NSLog(@"%@", [Util append:three, @"/", two, @"/", one, nil]); // three/two/one

using something like

+ (NSString *) append:(id) first, ...
{
    NSString * result = @"";
    id eachArg;
    va_list alist;
    if(first)
    {
        result = [result stringByAppendingString:first];
        va_start(alist, first);
        while (eachArg = va_arg(alist, id)) 
        result = [result stringByAppendingString:eachArg];
        va_end(alist);
    }
    return result;
}

Best Answer

Related Solutions

C++ – the difference between g++ and gcc

Objective-c – Shortcuts in Objective-C to concatenate NSStrings

An option:

Another option:

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