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bpo-38443: Check that the specified universal architectures work (GH-22910)

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As [bpo-38443]() says the error message from configure when specifying --enable-universalsdk with a set of architectures that is not supported by the compiler is not very helpful.   This PR explicitly checks if the compiler works and bails out if it doesn't.
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Ronald Oussoren 2020-11-22 02:13:11 +01:00 committed by GitHub
parent 68f68fa423
commit 0f20bd9042
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2
Misc/NEWS.d/next/macOS/2020-10-23-10-26-53.bpo-38443.vu64tl.rst Normal file
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@ -0,0 +1,2 @@
The ``--enable-universalsdk`` and ``--with-universal-archs`` options for the
configure script now check that the specified architectures can be used.

25
configure vendored
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@ -7611,6 +7611,31 @@ $as_echo_n "checking which MACOSX_DEPLOYMENT_TARGET to use... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MACOSX_DEPLOYMENT_TARGET" >&5
$as_echo "$MACOSX_DEPLOYMENT_TARGET" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if specified universal architectures work" >&5
$as_echo_n "checking if specified universal architectures work... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <stdio.h>
int
main ()
{
printf("%d", 42);
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
as_fn_error $? "check config.log and use the '--with-universal-archs' option" "$LINENO" 5
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
# end of Darwin* tests
;;
esac

7
configure.ac
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@ -1978,6 +1978,13 @@ yes)
EXPORT_MACOSX_DEPLOYMENT_TARGET=''
AC_MSG_RESULT($MACOSX_DEPLOYMENT_TARGET)
AC_MSG_CHECKING(if specified universal architectures work)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>]], [[printf("%d", 42);]])],
[AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)
AC_MSG_ERROR(check config.log and use the '--with-universal-archs' option)
])
# end of Darwin* tests
;;
esac