Segmentation fault when attemping to print NSString as UTF8String - objective-c

Question

I have the following objective-c snippet in my hello world example:
//hello.m
#import <Foundation/Foundation.h>
#import "hello.h"
void sayHello()
{
#ifdef FRENCH
NSString *helloWorld = #"Bonjour Monde!\n";
#else
NSString *helloWorld = #"Hello World\n";
#endif
printf("%s", [helloWorld UTF8String]);
}
//main.m
#import <Foundation/Foundation.h>
#import "hello.h"
int main (int argc, const char * argv[])
{
sayHello();
return 0;
}
building this stuff on osx works fine and runs as expected. But when compiling/linking it on ubuntu (using GNUStep) results in an segmentation fault when executing the binary. I nailed it down to the casting operation in the printf statement, but I have no clue what I'm doing wrong here or how I can solve this.
Interesting note: This works fine when using gcc toolchain to build the executable. I just see this issue when building it with clang on ubuntu.
Any help is very much appreciated.

Answer 1

To fix this issue, I ended up changing my code to the following:
...
void sayHello()
{
#ifdef FRENCH
NSString *helloWorld = #"${HELLO_WORLD_FRENCH}\\n";
#else
NSString *helloWorld = #"${HELLO_WORLD}\\n";
#endif
NSFileHandle *stdout = [NSFileHandle fileHandleWithStandardOutput];
NSData *strData = [helloWorld dataUsingEncoding: NSASCIIStringEncoding];
[stdout writeData: strData];
}
...