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run autoconf (GH-9411)

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Follow up to 2a9c3805dd (bpo-34585).
This commit is contained in:
Benjamin Peterson 2018-09-18 23:49:05 -07:00 committed by GitHub
parent 9da3961f36
commit b3b8cb419e
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 56 additions and 105 deletions
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1
aclocal.m4 vendored
View file

@ -288,4 +288,5 @@ AS_VAR_COPY([$1], [pkg_cv_][$1])
AS_VAR_IF([$1], [""], [$5], [$4])dnl
])dnl PKG_CHECK_VAR
m4_include([m4/ax_c_float_words_bigendian.m4])
m4_include([m4/ax_check_openssl.m4])

156
configure vendored
View file

@ -13853,132 +13853,78 @@ fi
# * Check for various properties of floating point *
# **************************************************
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C doubles are little-endian IEEE 754 binary64" >&5
$as_echo_n "checking whether C doubles are little-endian IEEE 754 binary64... " >&6; }
if ${ac_cv_little_endian_double+:} false; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether float word ordering is bigendian" >&5
$as_echo_n "checking whether float word ordering is bigendian... " >&6; }
if ${ax_cv_c_float_words_bigendian+:} false; then :
$as_echo_n "(cached) " >&6
else
if test "$cross_compiling" = yes; then :
ac_cv_little_endian_double=no
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
ax_cv_c_float_words_bigendian=unknown
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <string.h>
int main() {
double x = 9006104071832581.0;
if (memcmp(&x, "\x05\x04\x03\x02\x01\xff\x3f\x43", 8) == 0)
return 0;
else
return 1;
}
double d = 90904234967036810337470478905505011476211692735615632014797120844053488865816695273723469097858056257517020191247487429516932130503560650002327564517570778480236724525140520121371739201496540132640109977779420565776568942592.0;
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
ac_cv_little_endian_double=yes
else
ac_cv_little_endian_double=no
if ac_fn_c_try_compile "$LINENO"; then :
if grep noonsees conftest.$ac_objext >/dev/null ; then
ax_cv_c_float_words_bigendian=yes
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
if grep seesnoon conftest.$ac_objext >/dev/null ; then
if test "$ax_cv_c_float_words_bigendian" = unknown; then
ax_cv_c_float_words_bigendian=no
else
ax_cv_c_float_words_bigendian=unknown
fi
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_little_endian_double" >&5
$as_echo "$ac_cv_little_endian_double" >&6; }
if test "$ac_cv_little_endian_double" = yes
then
$as_echo "#define DOUBLE_IS_LITTLE_ENDIAN_IEEE754 1" >>confdefs.h
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C doubles are big-endian IEEE 754 binary64" >&5
$as_echo_n "checking whether C doubles are big-endian IEEE 754 binary64... " >&6; }
if ${ac_cv_big_endian_double+:} false; then :
$as_echo_n "(cached) " >&6
else
if test "$cross_compiling" = yes; then :
ac_cv_big_endian_double=no
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <string.h>
int main() {
double x = 9006104071832581.0;
if (memcmp(&x, "\x43\x3f\xff\x01\x02\x03\x04\x05", 8) == 0)
return 0;
else
return 1;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
ac_cv_big_endian_double=yes
else
ac_cv_big_endian_double=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_c_float_words_bigendian" >&5
$as_echo "$ax_cv_c_float_words_bigendian" >&6; }
fi
case $ax_cv_c_float_words_bigendian in
yes)
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_big_endian_double" >&5
$as_echo "$ac_cv_big_endian_double" >&6; }
if test "$ac_cv_big_endian_double" = yes
$as_echo "#define FLOAT_WORDS_BIGENDIAN 1" >>confdefs.h
;;
no)
;;
*)
as_fn_error $? "
Unknown float word ordering. You need to manually preset
ax_cv_c_float_words_bigendian=no (or yes) according to your system.
" "$LINENO" 5 ;;
esac
if test "$ax_cv_c_float_words_bigendian" = "yes"
then
$as_echo "#define DOUBLE_IS_BIG_ENDIAN_IEEE754 1" >>confdefs.h
fi
# Some ARM platforms use a mixed-endian representation for doubles.
# While Python doesn't currently have full support for these platforms
# (see e.g., issue 1762561), we can at least make sure that float <-> string
# conversions work.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C doubles are ARM mixed-endian IEEE 754 binary64" >&5
$as_echo_n "checking whether C doubles are ARM mixed-endian IEEE 754 binary64... " >&6; }
if ${ac_cv_mixed_endian_double+:} false; then :
$as_echo_n "(cached) " >&6
else
if test "$cross_compiling" = yes; then :
ac_cv_mixed_endian_double=no
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <string.h>
int main() {
double x = 9006104071832581.0;
if (memcmp(&x, "\x01\xff\x3f\x43\x05\x04\x03\x02", 8) == 0)
return 0;
else
return 1;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
ac_cv_mixed_endian_double=yes
else
ac_cv_mixed_endian_double=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_mixed_endian_double" >&5
$as_echo "$ac_cv_mixed_endian_double" >&6; }
if test "$ac_cv_mixed_endian_double" = yes
elif test "$ax_cv_c_float_words_bigendian" = "no"
then
$as_echo "#define DOUBLE_IS_LITTLE_ENDIAN_IEEE754 1" >>confdefs.h
else
# Some ARM platforms use a mixed-endian representation for doubles.
# While Python doesn't currently have full support for these platforms
# (see e.g., issue 1762561), we can at least make sure that float <-> string
# conversions work.
# FLOAT_WORDS_BIGENDIAN doesnt actually detect this case, but if it's not big
# or little, then it must be this?
$as_echo "#define DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754 1" >>confdefs.h
fi

4
pyconfig.h.in
View file

@ -30,6 +30,10 @@
/* Define if --enable-ipv6 is specified */
#undef ENABLE_IPV6
/* Define to 1 if your system stores words within floats with the most
significant word first */
#undef FLOAT_WORDS_BIGENDIAN
/* Define if flock needs to be linked with bsd library. */
#undef FLOCK_NEEDS_LIBBSD