Re: [PATCH] remove warning for --host without --build

[Eric Blake]

On 04/22/2012 11:42 AM, Bruno Haible wrote:
> Hi,
> 
> On bi-arch systems (such as x86 / x86_64) it is often necessary to pass
> the --host option together with an appropriate value for CC. But this
> triggers a warning:
> 
> $ ./configure --host=i686-pc-linux-gnu CC="gcc -m32 -march=i586"
> configure: WARNING: if you wanted to set the --build type, don't use --host.
>     If a cross compiler is detected then cross compile mode will be used
> ...
> 
> This warning was introduced on 2000-06-30, in commit
> <http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=cb2e761b8e1181f97e8e09d85526bd22078433db>
> with the remark "Re-enable the old behavior of --host and --build."
> 
> This warning was meant to warn users about a changed semantics of
> --build and --host. This change is now 12 years in the past; users
> have had enough time to learn it. I therefore suggest to remove the
> warning.

This is the clincher - it's only a warning, and by now, people have
migrated to saner usage patterns with the modern semantics of --build
and --host.  I will go ahead and apply this.


>    if test "x$build_alias" = x; then
>      cross_compiling=maybe
> -    AC_MSG_WARN([if you wanted to set the --build type, don't use --host.
> -    If a cross compiler is detected then cross compile mode will be used])
>    elif test "x$build_alias" != "x$host_alias"; then
>      cross_compiling=yes
>    fi
> 
> 
> 

-- 
Eric Blake   address@hidden    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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