# if HAS_FLOATINGPOINT_H
# include <floatingpoint.h>
# endif
-# define PERL_FPU_INIT fpsetmask(0)
+/* Some operating systems have this as a macro, which in turn expands to a comma
+ expression, and the last sub-expression is something that gets calculated,
+ and then they have the gall to warn that a value computed is not used. Hence
+ cast to void. */
+# define PERL_FPU_INIT (void)fpsetmask(0)
# else
# if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
# define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)