On 03/12/2018 07:47 AM, Eric Blake wrote:
On 03/12/2018 04:24 AM, Rechi wrote:
The following patch will fix AC_C_BIGENDIAN, for cross compiling, if narrowing is a fatal error in the used compiler.


Narrowing should not be a fatal error unless you used -Werror, which we advise against doing (it is impossible in general to write all configure snippets to be warning-proof against all possible -Werror settings).

Clarification: we recommend against including -Werror in CFLAGS during configure. It's just fine to have a dedicated configure probe for whether -Werror works, and then adding -Werror to CFLAGS during make time. It's just configure time where using -Werror globally is unsupported.

--
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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