g++ on Mac OS X - CoreServices.h Error

Question

When I compile the following code with g++

#include <CoreServices/CoreServices.h>
int main(int argc, char ** argv)
{
  return 0;
}

I get this error.

bash-3.2$ g++ test.C
In file included from /System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:43:0,
                 from /System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.framework/Headers/CarbonCore.h:20,
                 from /System/Library/Frameworks/CoreServices.framework/Frameworks/AE.framework/Headers/AE.h:20,
                 from /System/Library/Frameworks/CoreServices.framework/Headers/CoreServices.h:21,
                 from test.C:1:
/System/Library/Frameworks/CoreFoundation.framework/Headers/CFBundle.h:147:120: error: format string argument not a string type

Does anyone know what I can do to get it to work? I am trying to use mach_absolute_time and AbsoluteToNanoseconds, which is in CoreServices.h, like here.

g++ -v
gcc version 4.5.0 20100107 (experimental) (GCC)

Answer 1

It looks like you're trying to use Apple's frameworks without using Apple's toolchain - that's probably not going to work. Your example program compiles fine here for me, using the gcc that came with Xcode (and with clang):

$ cat example.cpp 
#include <CoreServices/CoreServices.h>
int main(int argc, char ** argv)
{
  return 0;
}
$ make example
g++     example.cpp   -o example
$ rm example
$ CXX=clang make example
clang     example.cpp   -o example
$