Skip to content

run autoconf #9411

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
benjaminp merged 1 commit into from
Sep 19, 2018
Merged

run autoconf #9411

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions aclocal.m4
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -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])
146 changes: 46 additions & 100 deletions configure
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -13853,131 +13853,77 @@ 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;
}

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
ac_cv_little_endian_double=yes
else
ac_cv_little_endian_double=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
double d = 90904234967036810337470478905505011476211692735615632014797120844053488865816695273723469097858056257517020191247487429516932130503560650002327564517570778480236724525140520121371739201496540132640109977779420565776568942592.0;

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 "$ac_cv_little_endian_double" = yes
then
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

$as_echo "#define DOUBLE_IS_LITTLE_ENDIAN_IEEE754 1" >>confdefs.h

if grep noonsees conftest.$ac_objext >/dev/null ; then
ax_cv_c_float_words_bigendian=yes
fi
if grep seesnoon conftest.$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

{ $as_echo "$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
then
$as_echo "#define FLOAT_WORDS_BIGENDIAN 1" >>confdefs.h
;;
no)
;;
*)
as_fn_error $? "

$as_echo "#define DOUBLE_IS_BIG_ENDIAN_IEEE754 1" >>confdefs.h
Unknown float word ordering. You need to manually preset
ax_cv_c_float_words_bigendian=no (or yes) according to your system.

fi
" "$LINENO" 5 ;;
esac

# 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. */
if test "$ax_cv_c_float_words_bigendian" = "yes"
then

#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;
}
$as_echo "#define DOUBLE_IS_BIG_ENDIAN_IEEE754 1" >>confdefs.h

_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
elif test "$ax_cv_c_float_words_bigendian" = "no"
then

fi
$as_echo "#define DOUBLE_IS_LITTLE_ENDIAN_IEEE754 1" >>confdefs.h

{ $as_echo "$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
then
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

Expand Down
4 changes: 4 additions & 0 deletions pyconfig.h.in
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -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

Expand Down