[sr #110687] AC_C_BIGENDIAN fails when cross-compiling with -std=c11 and -flto

[anonymous]

URL:
  <https://savannah.gnu.org/support/?110687>

                 Summary: AC_C_BIGENDIAN fails when cross-compiling with
-std=c11 and -flto
                 Project: Autoconf
               Submitter: None
               Submitted: Wed 27 Jul 2022 01:27:11 PM UTC
                Category: None
                Priority: 5 - Normal
                Severity: 3 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: fanquake@gmail.com
             Open/Closed: Open
         Discussion Lock: Any
        Operating System: GNU/Linux


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Follow-up Comments:


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Date: Wed 27 Jul 2022 01:27:11 PM UTC By: Anonymous
Using the following configure.ac:

AC_INIT([issue618], [1.0], [foo@bar.invalid])
AC_CONFIG_HEADERS([issue618config.h])
AC_C_BIGENDIAN
AC_OUTPUT

and the following command:

autoheader && autoconf && rm -Rf config.status autom4te.cache/ && ./configure
--host=aarch64-linux-gnu CFLAGS="-std=c11 -flto" LDFLAGS="-flto"

configure fails with:

checking whether byte ordering is bigendian... unknown
configure: error: unknown endianness
 presetting ac_cv_c_bigendian=no (or yes) will help

config.log is attached.
See also: https://github.com/libexpat/libexpat/issues/618/.






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File Attachments:


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Date: Wed 27 Jul 2022 01:27:11 PM UTC  Name: config.log  Size: 13KiB   By:
None

<http://savannah.gnu.org/support/download.php?file_id=53473>

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