Question

I have managed to build a static C library on OSX using make on the command line.

I have tried to use the same Makefile (with ARCHFLAGS=-arch armv6 -arch armv7) to build a static library for iOS, but it fails with:

gcc-4.2: error trying to exec '/usr/bin/arm-apple-darwin10-gcc-4.2.1': execvp: No such file or directory

I guess it is not working because I’m using the OSX SDK make instead of a some part of the iOS SDK. Any clues?

N.B. For more details on the library in question (levmar) and for the Makefile, please refer to this Stack Overflow answer.

Answer 1

You need to find:

• the location of the iOS compiler
• the command line options that are used in the command line invocation

The easiest way is to create a test iPhone/iPad app in XCode, build it, and then look at the build log to find how XCode invokes the compiler.