sysdeps/x86_64/configure.ac

   1 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
   2 # Local configure fragment for sysdeps/x86_64.
   3
   4 dnl Check if -mprefer-vector-width=128 works.
   5 AC_CACHE_CHECK(-mprefer-vector-width=128, libc_cv_cc_mprefer_vector_width, [dnl
   6 LIBC_TRY_CC_OPTION([-mprefer-vector-width=128],
   7                    [libc_cv_cc_mprefer_vector_width=yes],
   8                    [libc_cv_cc_mprefer_vector_width=no])
   9 ])
  10 LIBC_CONFIG_VAR([config-cflags-mprefer-vector-width],
  11                 [$libc_cv_cc_mprefer_vector_width])
  12
  13 if test x"$build_mathvec" = xnotset; then
  14   build_mathvec=yes
  15 fi
  16
  17 test -n "$critic_missing" && AC_MSG_ERROR([
  18 *** $critic_missing])