diff options
Diffstat (limited to 'sysdeps/x86_64/configure.ac')
| -rw-r--r-- | sysdeps/x86_64/configure.ac | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac index 9138f63a3f..c9f9a51f72 100644 --- a/sysdeps/x86_64/configure.ac +++ b/sysdeps/x86_64/configure.ac @@ -90,6 +90,15 @@ if test $libc_cv_asm_mpx == yes; then AC_DEFINE(HAVE_MPX_SUPPORT) fi +dnl Check if -mavx2 works. +AC_CACHE_CHECK(for AVX2 support, libc_cv_cc_avx2, [dnl +LIBC_TRY_CC_OPTION([-mavx2], [libc_cv_cc_avx2=yes], [libc_cv_cc_avx2=no]) +]) +if test $libc_cv_cc_avx2 = yes; then + AC_DEFINE(HAVE_AVX2_SUPPORT) +fi +LIBC_CONFIG_VAR([config-cflags-avx2], [$libc_cv_cc_avx2]) + dnl It is always possible to access static and hidden symbols in an dnl position independent way. AC_DEFINE(PI_STATIC_AND_HIDDEN) |