[libvirt] [PATCH] build: Solve mingw build clash with DATADIR
Eric Blake
eblake at redhat.com
Wed Aug 7 14:19:23 UTC 2019
On 7/31/19 2:30 PM, Eric Blake wrote:
> Commit fed58d83 was a hack to fix a mingw build failure due to header
> inclusion order resulting in a clash over the use of DATADIR, by
> repeating a trick made several other times in the past of tweaking
> inclusion order until it goes away. Better is to revert that, and
> instead use pragmas to avoid the clash in the first place, regardless
> of header ordering, solving it for everyone in the future.
>
> Signed-off-by: Eric Blake <eblake at redhat.com>
> ---
>
> I tested that both gcc and clang on F29 support this; but it will take
> a full CI run to see if everywhere else is okay with it. Thus, it is
> not 5.6 material.
Ping now that we are in 5.7
>
> src/util/viratomic.h | 3 +++
> src/conf/checkpoint_conf.c | 2 --
> 2 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/src/util/viratomic.h b/src/util/viratomic.h
> index 35800dafcd..c6e7668324 100644
> --- a/src/util/viratomic.h
> +++ b/src/util/viratomic.h
> @@ -218,7 +218,10 @@ VIR_STATIC unsigned int virAtomicIntXor(volatile unsigned int *atomic,
>
> # ifdef VIR_ATOMIC_OPS_WIN32
>
> +# pragma push_macro("DATADIR") /* If "configmake.h" was included first */
> +# undef DATADIR
> # include <winsock2.h>
> +# pragma pop_macro("DATADIR")
> # include <windows.h>
> # include <intrin.h>
> # if !defined(_M_AMD64) && !defined (_M_IA64) && !defined(_M_X64)
> diff --git a/src/conf/checkpoint_conf.c b/src/conf/checkpoint_conf.c
> index 5ce4cc4853..5f4c275dd8 100644
> --- a/src/conf/checkpoint_conf.c
> +++ b/src/conf/checkpoint_conf.c
> @@ -21,8 +21,6 @@
>
> #include <config.h>
>
> -#include <unistd.h>
> -
> #include "configmake.h"
> #include "internal.h"
> #include "virbitmap.h"
>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
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