GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.

# Local configure fragment for sysdeps/powerpc/powerpc64le.

dnl Require binary128 floating point support on powerpc64le (available in

dnl GCC 6.2).

AC_CACHE_CHECK([if $CC supports binary128 floating point type],

	       libc_cv_compiler_powerpc64le_binary128_ok, [dnl

save_CFLAGS="$CFLAGS"

CFLAGS="$CFLAGS -Werror -mfloat128"

AC_COMPILE_IFELSE([AC_LANG_SOURCE([[

__float128 a, b, c, d, e;

int i;

__float128

foobar (__float128 x)

{

  a = __builtin_nansq ("0");

  b = __builtin_huge_valq ();

  c = __builtin_infq ();

  d = __builtin_fabsq (x);

  e = __builtin_nanq ("0");

  i = __builtin_signbit (x);

  return __builtin_copysignq (x, x);

}

]])],

		  [libc_cv_compiler_powerpc64le_binary128_ok=yes],

		  [libc_cv_compiler_powerpc64le_binary128_ok=no])

CFLAGS="$save_CFLAGS"])

AS_IF([test "$libc_cv_compiler_powerpc64le_binary128_ok" != "yes"],

      [critic_missing="$critic_missing binary128 floating point type (GCC >= 6.2) is required on powerpc64le."])

dnl Require at least POWER8 on powerpc64le

OLD_CFLAGS="$CFLAGS"

CFLAGS="$CFLAGS $libc_cv_cc_submachine"

AC_CACHE_CHECK([if the target machine is at least POWER8],

	       libc_cv_target_power8_ok, [

AC_COMPILE_IFELSE([AC_LANG_SOURCE([[

#ifndef _ARCH_PWR8

#error invalid target architecture

#endif

]])],

	       [libc_cv_target_power8_ok=yes],

	       [libc_cv_target_power8_ok=no])])

AS_IF([test "$libc_cv_target_power8_ok" != "yes"],

      [critic_missing="$critic_missing POWER8 or newer is required on powerpc64le."])

CFLAGS="$OLD_CFLAGS"

test -n "$critic_missing" && AC_MSG_ERROR([*** $critic_missing])