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Re: [Qemu-devel] [PATCH v2] gtk: avoid redefining _WIN32_WINNT macro


From: Stefan Weil
Subject: Re: [Qemu-devel] [PATCH v2] gtk: avoid redefining _WIN32_WINNT macro
Date: Tue, 08 Sep 2015 20:39:39 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.8.0

Am 08.09.2015 um 15:53 schrieb Paolo Bonzini:
> 
> 
> ----- Messaggio originale -----
>> Da: "Daniel P. Berrange" <address@hidden>
>> A: address@hidden
>> Cc: "Gerd Hoffmann" <address@hidden>, address@hidden, "Paolo Bonzini" 
>> <address@hidden>, "Stefan
>> Weil" <address@hidden>, "Daniel P. Berrange" <address@hidden>
>> Inviato: Martedì, 8 settembre 2015 12:34:35
>> Oggetto: [PATCH v2] gtk: avoid redefining _WIN32_WINNT macro
>>
>> When building for Mingw64 target on Fedora 22 a warning
>> is issued about _WIN32_WINNT being redefined.
>>
>> In file included from ui/gtk.c:40:0:
>> include/ui/gtk.h:5:0: warning: "_WIN32_WINNT" redefined
>>  # define _WIN32_WINNT 0x0601 /* needed to get definition of MAPVK_VK_TO_VSC
>>  */
>>   ^
>> In file included from
>> /usr/i686-w64-mingw32/sys-root/mingw/include/crtdefs.h:10:0,
>>                  from /usr/i686-w64-mingw32/sys-root/mingw/include/stdio.h:9,
>>                  from
>>                  /home/berrange/src/virt/qemu/include/qemu/fprintf-fn.h:12,
>>                  from /home/berrange/src/virt/qemu/include/qemu-common.h:18,
>>                  from ui/gtk.c:37:
>> /usr/i686-w64-mingw32/sys-root/mingw/include/_mingw.h:225:0: note: this is
>> the location of the previous definition
>>  #define _WIN32_WINNT 0x502
>>  ^
>>
>> Rather than try to get MAPVK_VK_TO_VSC defined indirectly
>> by defining _WIN32_WINNT, instead just define it explicitly
>> if missing.
>>
>> Signed-off-by: Daniel P. Berrange <address@hidden>
>> ---
>>  include/ui/gtk.h | 4 ----
>>  ui/gtk.c         | 9 +++++++++
>>  2 files changed, 9 insertions(+), 4 deletions(-)
>>
>> diff --git a/include/ui/gtk.h b/include/ui/gtk.h
>> index ee6dffd..0359333 100644
>> --- a/include/ui/gtk.h
>> +++ b/include/ui/gtk.h
>> @@ -1,10 +1,6 @@
>>  #ifndef UI_GTK_H
>>  #define UI_GTK_H
>>  
>> -#ifdef _WIN32
>> -# define _WIN32_WINNT 0x0601 /* needed to get definition of MAPVK_VK_TO_VSC
>> */
>> -#endif
>> -
>>  #ifdef CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE
>>  /* Work around an -Wstrict-prototypes warning in GTK headers */
>>  #pragma GCC diagnostic push
>> diff --git a/ui/gtk.c b/ui/gtk.c
>> index df2a79e..80d5c20 100644
>> --- a/ui/gtk.c
>> +++ b/ui/gtk.c
>> @@ -104,6 +104,15 @@
>>  #define GDK_KEY_Pause GDK_Pause
>>  #endif
>>  
>> +/* Some older mingw versions lack this constant or have
>> + * it conditionally defined */
>> +#ifdef _WIN32
>> +# ifndef MAPVK_VK_TO_VSC
>> +#  define MAPVK_VK_TO_VSC 0
>> +# endif
>> +#endif
>> +
>> +
>>  #define HOTKEY_MODIFIERS        (GDK_CONTROL_MASK | GDK_MOD1_MASK)
>>  
>>  static const int modifier_keycode[] = {
>> --
>> 2.4.3
>>
>>
> 
> Nice, thanks!
> 
> Acked-by: Paolo Bonzini <address@hidden>
> 

Thanks, applied to my Windows patch queue
(git://qemu.weilnetz.de/qemu.git wxx)

Stefan




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