diff options
Diffstat (limited to 'include/ruby/missing.h')
| -rw-r--r-- | include/ruby/missing.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/ruby/missing.h b/include/ruby/missing.h index ac0a5c9dc0..067145a156 100644 --- a/include/ruby/missing.h +++ b/include/ruby/missing.h @@ -138,6 +138,9 @@ RUBY_EXTERN const unsigned char rb_nan[]; #ifndef isinf # ifndef HAVE_ISINF # if defined(HAVE_FINITE) && defined(HAVE_ISNAN) +# ifdef HAVE_IEEEFP_H +# include <ieeefp.h> +# endif # define isinf(x) (!finite(x) && !isnan(x)) # else RUBY_EXTERN int isinf(double); |