Re: [Qemu-devel] [PATCH] configure: Allow builds without any system or user emulation

[Stefan Weil <sw@weilnetz.de>]

Am 24.09.2012 12:57, schrieb Laurent Desnogues:
> On Sat, Sep 22, 2012 at 11:37 PM, Stefan Weil<sw@weilnetz.de>  wrote:
>> Am 14.09.2012 19:02, schrieb Stefan Weil:
>>
>>> The old code aborted configure when no emulation target was selected.
>>> Even after removing the 'exit 1', it tried to read from STDIN
>>> when QEMU was configured with
>>>
>>>       configure' '--disable-user' '--disable-system'
>>>
>>> This is fixed here.
>>>
>>> Signed-off-by: Stefan Weil<sw@weilnetz.de>
>>> ---
>>>
>>> This patch can be applied after 66d5499b3 was reverted.
>>>
>>> It also works on top of 66d5499b3. In this case only Makefile
>>> needs modifications, and the configure part of the patch must be removed.
>>>
>>> Regards
>>>
>>> Stefan Weil
>>>
>>>
>>>    Makefile  |    5 +++++
>>>    configure |    4 ----
>>>    2 files changed, 5 insertions(+), 4 deletions(-)
>>>
>>> diff --git a/Makefile b/Makefile
>>> index 9523e05..d38ac0f 100644
>>> --- a/Makefile
>>> +++ b/Makefile
>>> @@ -52,8 +52,13 @@ SUBDIR_MAKEFLAGS=$(if $(V),,--no-print-directory)
>>> BUILD_DIR=$(BUILD_DIR)
>>>    SUBDIR_DEVICES_MAK=$(patsubst %, %/config-devices.mak, $(TARGET_DIRS))
>>>    SUBDIR_DEVICES_MAK_DEP=$(patsubst %, %/config-devices.mak.d,
>>> $(TARGET_DIRS))
>>>
>>> +ifeq ($(SUBDIR_DEVICES_MAK),)
>>> +config-all-devices.mak:
>>> +       $(call quiet-command,echo '# no devices'>   $@,"  GEN   $@")
>>> +else
>>>    config-all-devices.mak: $(SUBDIR_DEVICES_MAK)
>>>          $(call quiet-command,cat $(SUBDIR_DEVICES_MAK) | grep =y | sort
>>> -u>   $@,"  GEN   $@")
>>> +endif
>>>
>>>    -include $(SUBDIR_DEVICES_MAK_DEP)
>>>
>>> diff --git a/configure b/configure
>>> index fc27bd9..a9305f3 100755
>>> --- a/configure
>>> +++ b/configure
>>> @@ -1331,10 +1331,6 @@ if test -z "$target_list" ; then
>>>    else
>>>        target_list=`echo "$target_list" | sed -e 's/,/ /g'`
>>>    fi
>>> -if test -z "$target_list" ; then
>>> -    echo "No targets enabled"
>>> -    exit 1
>>> -fi
>>>    # see if system emulation was really requested
>>>    case " $target_list " in
>>>      *"-softmmu "*) softmmu=yes
>>>
>>
>>
>>
>> Ping? 66d5499b3 was reverted, so my patch can be applied if nobody objects.
>
> Works fine here.
>
> I think Daniel's original proposal to use some keyword for target-list
> is more convenient than having to use both --disable-user and
> --disable-system, but that's no big deal :-)
>
>
> Laurent

Thanks for testing. Support for --target-list= (empty target list
instead of --disable-user --disable-system) also requires the same
modifications and can be implemented by an additional patch.

Stefan