[warnergt]

I recently updated my XCode tools. Now, when I compile
with gcc (gcc-3.3), I get an error with a file that includes <math.h>.

Here is the offending code in /usr/include/architecture/ppc/math.h

#ifdef __APPLE_CC__
#define complex _Complex
extern double cabs ( double complex );
#undef complex
#else

Here is the error message:
In file included from /usr/include/math.h:26,
from c/xxxxx.c:114:
/usr/include/architecture/ppc/math.h:506: error: ISO C90 does not support complex types


Anybody know why I'm getting this problem?

[Wevah]

Yeah; the C90 standard doesn't support complex types.

Try this gcc flag:

-std=c99

and see if that makes it go away.