configure: Use autoconf 2.71

[glibc.git] / sysdeps / powerpc / powerpc64 / le / configure

# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
 # Local configure fragment for sysdeps/powerpc/powerpc64le.

OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $libc_cv_cc_submachine"

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if the target machine is at least POWER8" >&5
printf %s "checking if the target machine is at least POWER8... " >&6; }
if test ${libc_cv_target_power8_ok+y}
then :
  printf %s "(cached) " >&6
else $as_nop

cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#ifndef _ARCH_PWR8
#error invalid target architecture
#endif

_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  libc_cv_target_power8_ok=yes
else $as_nop
  libc_cv_target_power8_ok=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_target_power8_ok" >&5
printf "%s\n" "$libc_cv_target_power8_ok" >&6; }
if test "$libc_cv_target_power8_ok" != "yes"
then :
  critic_missing="$critic_missing POWER8 or newer is required on powerpc64le."
fi
CFLAGS="$OLD_CFLAGS"

OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -mno-gnu-attribute"
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if the compiler supports -mno-gnu-attribute" >&5
printf %s "checking if the compiler supports -mno-gnu-attribute... " >&6; }
if test ${libc_cv_no_gnu_attr_ok+y}
then :
  printf %s "(cached) " >&6
else $as_nop

cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */


_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  libc_cv_no_gnu_attr_ok=yes
else $as_nop
  libc_cv_no_gnu_attr_ok=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_no_gnu_attr_ok" >&5
printf "%s\n" "$libc_cv_no_gnu_attr_ok" >&6; }
if test "$libc_cv_no_gnu_attr_ok" != "yes"
then :
  critic_missing="$critic_missing A compiler with -mno-gnu-attribute is required on powerpc64le."
fi
CFLAGS="$OLD_CFLAGS"

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $CC compiles signbit with 128-bit floating point type" >&5
printf %s "checking if $CC compiles signbit with 128-bit floating point type... " >&6; }
if test ${libc_cv_compiler_powerpc64le_ice+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -mabi=ieeelongdouble -Wno-psabi"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int sbr (long double a) { return __builtin_signbit (a); }
int sbm (long double *a) { return __builtin_signbit (*a); }
int sbo (long double *a) { return __builtin_signbit (a[4]); }
int sbi (long double *a, unsigned long n) { return __builtin_signbit (a[n]); }
void sbs (int *p, long double a) { *p = __builtin_signbit (a); }

_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  libc_cv_compiler_powerpc64le_ice=yes
else $as_nop
  libc_cv_compiler_powerpc64le_ice=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
CFLAGS="$save_CFLAGS"
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_powerpc64le_ice" >&5
printf "%s\n" "$libc_cv_compiler_powerpc64le_ice" >&6; }
if test "$libc_cv_compiler_powerpc64le_ice" != "yes"
then :
  critic_missing="$critic_missing __builtin_signbit is broken.  GCC 7.4 or newer is required to resolve (PR83862)."
fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $CC compiles with -mabi=ieeelongdouble and -mlong-double-128" >&5
printf %s "checking if $CC compiles with -mabi=ieeelongdouble and -mlong-double-128... " >&6; }
if test ${libc_cv_compiler_powerpc64le_ldbl128_mabi+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -mabi=ieeelongdouble -mlong-double-128"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

long double x;

_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  libc_cv_compiler_powerpc64le_ldbl128_mabi=yes
else $as_nop
  libc_cv_compiler_powerpc64le_ldbl128_mabi=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
CFLAGS="$save_CFLAGS"
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_powerpc64le_ldbl128_mabi" >&5
printf "%s\n" "$libc_cv_compiler_powerpc64le_ldbl128_mabi" >&6; }
if test "$libc_cv_compiler_powerpc64le_ldbl128_mabi" = "no"
then :
  critic_missing="$critic_missing The compiler must support -mabi=ieeelongdouble and -mlong-double-128 simultaneously."
fi

for ac_prog in $OBJCOPY
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_OBJCOPY+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$OBJCOPY"; then
  ac_cv_prog_OBJCOPY="$OBJCOPY" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_OBJCOPY="$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
OBJCOPY=$ac_cv_prog_OBJCOPY
if test -n "$OBJCOPY"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $OBJCOPY" >&5
printf "%s\n" "$OBJCOPY" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  test -n "$OBJCOPY" && break
done

if test -z "$OBJCOPY"; then
  ac_verc_fail=yes
else
  # Found it, now check the version.
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking version of $OBJCOPY" >&5
printf %s "checking version of $OBJCOPY... " >&6; }
  ac_prog_version=`$OBJCOPY --version 2>&1 | sed -n 's/^.*GNU objcopy.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
  case $ac_prog_version in
    '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
    2.1[0-9][0-9]*|2.2[6-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*)
       ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
    *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;

  esac
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_prog_version" >&5
printf "%s\n" "$ac_prog_version" >&6; }
fi
if test $ac_verc_fail = yes; then
  AS=: critic_missing="$critic_missing objcopy >= 2.26 is required on powerpc64le"
fi


test -n "$critic_missing" && as_fn_error $? "*** $critic_missing" "$LINENO" 5