Question

I am trying to compile PHP on my Mac OS X 10.8 and I am getting the following problem:

In file included from /Users/ryan/Downloads/php-5.4.5/ext/phar/util.c:23:
ext/phar/phar_internal.h:223:19: error: invalid token at start of a preprocessor
      expression
# if SIZEOF_SHORT == 2
                  ^

I’m not sure why this error is occurring as this looks fine to me. I have opened the header file and could make changes if not or remove the if all together as I know what my system should be, but I was wondering if this is the proper approach to this problem.

Answer 1

It looks like SIZEOF_SHORT expands to no tokens. You should investigate where SIZEOF_SHORT is being #defined (this may be on the command line via -DSIZEOF_SHORT=) and fix that to provide the right value.

Alternatively, you could use this:

#include "limits.h"
/* ... */
#if SHRT_BIT == CHAR_BIT * 2