I believe there is a problem in vnl_math.h that is preventing it from compiling on my platform.

Beginning at line 54 is the following:

// Turn on fast impl when using GCC on Intel-based machines with the following exception:
//   PPC with Mac OS X
#if defined(__GNUC__) && (!defined(__APPLE__)  || !defined(__ppc__) )
# define GCC_USE_FAST_IMPL 1
# define GCC_USE_FAST_IMPL 0

This presumes that if you are using a GNU compiler and you are not on a Mac or a ppc, you must be on an Intel platform.

In my case I'm using the GNU compiler, but not on an Intel processor so the compiler dies because GCC_USE_FAST_IMPL causes Intel assembler code to be inserted. 

There's a simple work-around for my case (force GCC_USE_FAST_IMPL to always be 0), but what is the best way to fix this?

I would think it would be something like
#if defined(__GNUC__) && (defined(__INTEL__) …
But I don't know if an __INTEL__ define exists.

Glen W. Brooksby
Electrical Engineer
GE Global Research
Imaging Technologies

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