glibc/sysdeps/csky/preconfigure
Siddhesh Poyarekar c6cb8783b5 configure: Use autoconf 2.71
Bump autoconf requirement to 2.71 to allow regenerating configure on
more recent distributions.  autoconf 2.71 has been in Fedora since F36
and is the current version in Debian stable (bookworm).  It appears to
be current in Gentoo as well.

All sysdeps configure and preconfigure scripts have also been
regenerated; all changes are trivial transformations that do not affect
functionality.

Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2023-07-17 10:08:10 -04:00

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# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
# Local preconfigure fragment for sysdeps/csky
case "$machine" in
csky*)
abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
sed -n 's/^#define __CSKYABI__ \(.*\)/\1/p'`
soft_float=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
sed -n 's/^#define __CSKY_SOFT_FLOAT__ \(.*\)/\1/p'`
hard_float_abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
sed -n 's/^#define __CSKY_HARD_FLOAT_ABI__ \(.*\)/\1/p'`
case "$abi" in
1)
as_fn_error 1 "glibc does not support abiv1 yet" "$LINENO" 5
;;
2)
machine=abiv2
;;
*)
as_fn_error 1 "Unknown abi" "$LINENO" 5
;;
esac
# This check is for compatibility with GCC versions earlier than 11.
# The older versions of C-SKY GCC do not support the '-mfloat-abi=softfp' option
# and never define the '__CSKY_HARD_FLOAT_ABI__'.
# Therefore, if a check for '-mfloat-abi=softfp' is added as the expression
# 'defined(__CSKY_HARD_FLOAT__) && !defined(__CSKY_HARD_FLOAT_ABI__)'
# which is correct for newer versions of GCC will not work for those older versions.
# Since no expression compatible with all versions of GCC exists,
# a check for the '-mfloat-abi=softfp' option is added.
if { ac_try='${CC-cc} -S -mfloat-abi=softfp /dev/null 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }; then
soft_float_abi_support=1
else
soft_float_abi_support=0
fi
if test -n "$soft_float"; then
with_fp_cond=0
with_hard_float_abi=0
else
with_fp_cond=1
if test -n "$soft_float_abi_support"; then
if test -n "$hard_float_abi"; then
with_hard_float_abi=1
else
with_hard_float_abi=0
fi
else
with_hard_float_abi=1
fi
fi
base_machine=csky
machine=csky/$machine
printf "%s\n" "#define CSKYABI $abi" >>confdefs.h
printf "%s\n" "#define CSKY_HARD_FLOAT $with_fp_cond" >>confdefs.h
printf "%s\n" "#define CSKY_HARD_FLOAT_ABI $with_hard_float_abi" >>confdefs.h
;;
esac