| Add a check for FE_DIVBYZERO |
| |
| Some architectures (namely Microblaze) do have fenv.h and |
| feenableexcept, but they don't have the FE_DIVBYZERO definition. This |
| patch adds a configure check for FE_DIVBYZERO, and only uses it if |
| it's available. |
| |
| Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> |
| |
| Index: b/configure.ac |
| =================================================================== |
| --- a/configure.ac |
| +++ b/configure.ac |
| @@ -838,6 +838,11 @@ |
| AC_DEFINE(HAVE_FEENABLEEXCEPT, 1, [Whether we have feenableexcept()]) |
| fi |
| |
| +AC_CHECK_DECL([FE_DIVBYZERO], [], [], [[#include <fenv.h>]]) |
| +if test x$ac_cv_have_decl_FE_DIVBYZERO = xyes; then |
| + AC_DEFINE(HAVE_FEDIVBYZERO, 1, [Whether we have FE_DIVBYZERO]) |
| +fi |
| + |
| AC_CHECK_FUNC(gettimeofday, have_gettimeofday=yes, have_gettimeofday=no) |
| AC_CHECK_HEADER(sys/time.h, have_sys_time_h=yes, have_sys_time_h=no) |
| if test x$have_gettimeofday = xyes && test x$have_sys_time_h = xyes; then |
| Index: b/test/utils.c |
| =================================================================== |
| --- a/test/utils.c |
| +++ b/test/utils.c |
| @@ -776,9 +776,11 @@ |
| { |
| #ifdef HAVE_FENV_H |
| #ifdef HAVE_FEENABLEEXCEPT |
| +#ifdef HAVE_FE_DIVBYZERO |
| feenableexcept (FE_DIVBYZERO); |
| #endif |
| #endif |
| +#endif |
| } |
| |
| void * |
