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Diffstat (limited to 'sysdeps/i386/configure.in')
| -rw-r--r-- | sysdeps/i386/configure.in | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sysdeps/i386/configure.in b/sysdeps/i386/configure.in index d8dd648f80..67fd1d7df1 100644 --- a/sysdeps/i386/configure.in +++ b/sysdeps/i386/configure.in @@ -66,3 +66,11 @@ fi]) if test $libc_cv_cc_avx = yes; then AC_DEFINE(HAVE_AVX_SUPPORT) fi + +dnl Check if -mno-vzeroupper works. +AC_CACHE_CHECK(for -mno-vzeroupper support, libc_cv_cc_novzeroupper, [dnl +if AC_TRY_COMMAND([${CC-cc} -mno-vzeroupper -xc /dev/null -S -o /dev/null]); then + libc_cv_cc_novzeroupper=yes +else + libc_cv_cc_novzeroupper=no +fi]) |