CODEWITHSUNDEEP
objective-cmacosclang
collenjones
collenjones

Reputation: 530

Compile Objective-C with clang in macOS 10.14?

macOS: 10.14.5

XCode: 10.2.1

Clang: 8.0.0

I am able to successfully compile Obj-C with XCode but am getting a fatal error that Foundation.h is missing when attempting to compile from the command line. Any ideas on how to fix this?

$ cat first_program.m                                                                                        
#import <Foundation/Foundation.h>

int main(int argc, const char *argv[]) {
  @autoreleasepool {
      NSLog(@"Hello, World!");
  }
  return 0;
}

$ clang -Wall -framework Foundation first_program.m
first_program.m:1:9: fatal error: 'Foundation/Foundation.h' file not found
#import <Foundation/Foundation.h>
        ^~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.

$ clang -v                                                                                                  
clang version 8.0.0 (tags/RELEASE_800/final)
Target: x86_64-apple-darwin18.6.0
Thread model: posix
InstalledDir: /usr/local/opt/llvm/bin

Upvotes: 0

Views: 1493

Answers (1)

l&#39;L&#39;l
l&#39;L&#39;l

Reputation: 47159

I suspect since it appears the version clang used is non-Apple headers cannot be located. You can likely tell it where to look for the Foundation framework by adding isysroot to your compile command with the xcrun --show-sdk-path option:

clang -Wall -framework Foundation -isysroot `xcrun --show-sdk-path` first_program.m

Upvotes: 4

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