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Date: Mon, 27 Jun 2011 07:40:03 +0200
From: Stefan Weil <weil@mail.berlios.de>
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Subject: Re: [Qemu-devel] [Qemu-trivial] [PATCH] fix MinGW compilation when
 --enable-vnc-jpeg is specified
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To: TeLeMan <geleman@gmail.com>
Cc: Blue Swirl <blauwirbel@gmail.com>, Stefan Hajnoczi <stefanha@gmail.com>, qemu-devel <qemu-devel@nongnu.org>, Roy Tam <roytam@gmail.com>

Am 27.06.2011 04:37, schrieb TeLeMan:
> This patch breaks the compilation with --enable-vnc-png:
>
> CC ui/vnc-enc-tight.o
> In file included from /usr/include/png.h:518,
> from ui/vnc-enc-tight.c:34:
> /usr/include/pngconf.h:371: error: expected '=', ',', ';', 'asm' or
> '__attribute__' before '.' token
> /usr/include/pngconf.h:372: error: expected '=', ',', ';', 'asm' or
> '__attribute__' before 'include'
> make: *** [ui/vnc-enc-tight.o] Error 1
>
> --
> SUN OF A BEACH

I get the same compiler error when I run with --enable-vnc-png,
and the buildbots got it as well. In my last test, png support
was disabled, so I did not notice this problem.

The png header files check for prior inclusion of setjmp.h
and have a really surprising way of telling that this happened
(instead of #error, they use illegal C code - a comment without
comment delimiters).

A patch which disables this strange check was just sent to qemu-devel.

Regards,
Stefan