CODEWITHSUNDEEP
iphoneuikitclangfoundation
exebook
exebook

Reputation: 33920

how to link uikit app on iphone?

I use ssh to iphone, and can compile console apps on iphone using clang or gcc. But now how can I link against UIKit? Compiler finds headers and stuck at linking.

what args I should pass to clang? How can I check if I have the required static/shared libs? what exactly are the files to link against?

the example program:

#import <stdio.h>
#import <UIKit/UIView.h>

int main() {
        UIView *U = [UIView alloc];
        printf("OK\n");
        return 0;
}

Here is the command line and error:

$ clang main.m
Undefined symbols:
  "_OBJC_CLASS_$_UIView", referenced from:
      __objc_classrefs__DATA@0 in main-2RgCk6.o
  "_objc_msgSend", referenced from:
      _main in main-2RgCk6.o
ld: symbol(s) not found
clang: error: linker command failed with exit code 1 (use -v to see invocation)

extra info:

$ uname -a
Darwin devphone-teki-iPhone 13.0.0 Darwin Kernel Version 13.0.0: Sun Dec 16 19:58:44 PST 2012; root:xnu-2107.7.55~11/RELEASE_ARM_S5L8940X iPhone4,1 arm N94AP Darwin

$ clang --version
clang version 3.1 (trunk 152547)
Target: arm-apple-darwin13.0.0
Thread model: posix

Upvotes: 0

Views: 517

Answers (1)

exebook
exebook

Reputation: 33920

Answer my question after successful compilation.

You need to use apt to install clang gcc p7zip then find sdk 3

iphone_sdk_3.1.3_with_xcode_3.1.4__leopard__9m2809a.dmg

Extract to get 

iPhoneSDK3_1_2.pkg

Then extract it again to -> ~/sdk

(You may need to use 7z many times to extract deeper), you will get this:

$ ls ~/sdk
Developer/  Entitlements.plist  ResourceRules.plist  SDKSettings.plist  System/   usr/

Then compile like this

clang main.m -o main -isysroot ~/sdk/ \
-miphoneos-version-min=2 -L~/sdk/usr/lib -lobjc \
-framework UIKit \
-framework Foundation

Once you get 'main' copy it to your app folder and owerwrite previously installed app.

cp main /var/stash/Applications.Q6ABC7/myApp.app/myapp
kill myapp

Now you can click icon of your app and see it works.

Upvotes: 1

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