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Re: [Qemu-devel] [PATCH v2] ccid-card: include libcacard.h only


From: Michal Privoznik
Subject: Re: [Qemu-devel] [PATCH v2] ccid-card: include libcacard.h only
Date: Tue, 3 Apr 2018 13:48:53 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0

On 04/03/2018 01:38 PM, Marc-André Lureau wrote:
> Hi
> 
> On Tue, Apr 3, 2018 at 12:34 PM, Michal Privoznik <address@hidden> wrote:
>> When trying to build with latest libcacard-2.5.1, I hit the
>> following error:
>>
>> In file included from hw/usb/ccid-card-passthru.c:12:0:
>> /usr/include/cacard/vscard_common.h:26:2: error: #warning "Only 
>> <libcacard.h> can be included directly" [-Werror=cpp]
>>  #warning "Only <libcacard.h> can be included directly"
>>
>> While it was fixed in libcacard upstream (so that individual
>> files can be included directly), it doesn't make much sense.
>> Let's switch to including the main libcacard.h and also require
>> at least libcacard-2.5.1 which introduced it. It's available
>> since late 2015.
>>
>> Signed-off-by: Michal Privoznik <address@hidden>
>> ---
>>
>> diff to v1:
>> - Introduce configure change to require newer libcacard version
>>
>>  configure                   | 2 +-
>>  hw/usb/ccid-card-emulated.c | 5 +----
>>  hw/usb/ccid-card-passthru.c | 2 +-
>>  3 files changed, 3 insertions(+), 6 deletions(-)
>>
>> diff --git a/configure b/configure
>> index 4d0e92c96c..0edec24fff 100755
>> --- a/configure
>> +++ b/configure
>> @@ -4440,7 +4440,7 @@ fi
>>
>>  # check for smartcard support
>>  if test "$smartcard" != "no"; then
>> -    if $pkg_config libcacard; then
>> +    if $pkg_config --atleast-version=2.5.1 libcacard; then
>>          libcacard_cflags=$($pkg_config --cflags libcacard)
>>          libcacard_libs=$($pkg_config --libs libcacard)
>>          smartcard="yes"
>> diff --git a/hw/usb/ccid-card-emulated.c b/hw/usb/ccid-card-emulated.c
>> index ea42e4681d..7b538ae6da 100644
>> --- a/hw/usb/ccid-card-emulated.c
>> +++ b/hw/usb/ccid-card-emulated.c
>> @@ -27,10 +27,7 @@
>>   */
>>
>>  #include "qemu/osdep.h"
>> -#include <eventt.h>
>> -#include <vevent.h>
>> -#include <vreader.h>
>> -#include <vcard_emul.h>
>> +#include <cacard/libcacard.h>
> 
> You should be able to #include <libcacard.h> only.

Yes, you're right. Do you want me to resend or will you handle this when
merging the patch?


Thanks,
Michal



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