diff options
Diffstat (limited to 'Zend/Zend.m4')
| -rw-r--r-- | Zend/Zend.m4 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Zend/Zend.m4 b/Zend/Zend.m4 index 06563c7b77..b0d7923e65 100644 --- a/Zend/Zend.m4 +++ b/Zend/Zend.m4 @@ -491,3 +491,21 @@ dnl This is the most probable fallback so we assume yes in case of cross compile if test "$ac_cv_huge_val_nan" = "yes"; then AC_DEFINE([HAVE_HUGE_VAL_NAN], 1, [whether HUGE_VAL + -HUGEVAL == NAN]) fi + +dnl +dnl Check whether __cpuid_count is available +dnl +AC_CACHE_CHECK(whether __cpuid_count is available, ac_cv_cpuid_count_available, [ +AC_LINK_IFELSE([AC_LANG_PROGRAM([[ + #include <cpuid.h> +]], [[ + unsigned eax, ebx, ecx, edx; + __cpuid_count(0, 0, eax, ebx, ecx, edx); +]])], [ + ac_cv_cpuid_count_available=yes +], [ + ac_cv_cpuid_count_available=no +])]) +if test "$ac_cv_cpuid_count_available" = "yes"; then + AC_DEFINE([HAVE_CPUID_COUNT], 1, [whether __cpuid_count is available]) +fi |