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Add a workaround for broken Xcode 11 beta versions

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This commit is contained in:
Frank Denis 2019-08-26 15:35:12 +02:00
parent 549bf059cd
commit d1e33bbc71
2 changed files with 88 additions and 0 deletions
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71
configure vendored
View File

@ -7492,6 +7492,77 @@ fi
;;
esac
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a broken Xcode version" >&5
$as_echo_n "checking for a broken Xcode version... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
#if !defined(__APPLE_CC__) || __APPLE_CC__ != 6000
#error Not Apple
#endif
#if !defined(__clang_major__) || __clang_major__ != 11
#error Not Xcode 11
#endif
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Using unsupported Xcode version" >&5
$as_echo "$as_me: WARNING: Using unsupported Xcode version" >&2;}
as_CACHEVAR=`$as_echo "ax_cv_check_cflags__$CFLAGS -ffreestanding" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts $CFLAGS -ffreestanding" >&5
$as_echo_n "checking whether C compiler accepts $CFLAGS -ffreestanding... " >&6; }
if eval \${$as_CACHEVAR+:} false; then :
$as_echo_n "(cached) " >&6
else
ax_check_save_flags=$CFLAGS
CFLAGS="$CFLAGS $CFLAGS -ffreestanding"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <time.h>
int
main ()
{
time_t x; int fodder = 0; if (fodder > -1000 && time(&x)) return (int) x
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
eval "$as_CACHEVAR=yes"
else
eval "$as_CACHEVAR=no"
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
CFLAGS=$ax_check_save_flags
fi
eval ac_res=\$$as_CACHEVAR
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if eval test \"x\$"$as_CACHEVAR"\" = x"yes"; then :
CFLAGS="$CFLAGS -ffreestanding"
else
:
fi
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
if test "x$enable_ssp" != "xno"; then :

17
configure.ac
View File

@ -284,6 +284,23 @@ AS_CASE([$host_os],
])
])
AC_MSG_CHECKING(for a broken Xcode version)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
#if !defined(__APPLE_CC__) || __APPLE_CC__ != 6000
#error Not Apple
#endif
#if !defined(__clang_major__) || __clang_major__ != 11
#error Not Xcode 11
#endif
]])],
[AC_MSG_RESULT(yes)
AC_MSG_WARN([Using unsupported Xcode version])
AX_CHECK_COMPILE_FLAG([$CFLAGS -ffreestanding],
[CFLAGS="$CFLAGS -ffreestanding"])
],
[AC_MSG_RESULT(no)
])
AS_IF([test "x$enable_ssp" != "xno"],[
AS_CASE([$host_os],