diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/le/configure.ac')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/le/configure.ac | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/le/configure.ac b/sysdeps/powerpc/powerpc64/le/configure.ac new file mode 100644 index 0000000000..20a49d89e8 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/le/configure.ac @@ -0,0 +1,48 @@ +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]) |