diff options
| author | Marcel Holtmann <marcel@holtmann.org> | 2022-12-22 21:36:40 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2023-01-11 10:44:34 +0100 |
| commit | dadc3d01bcb0d8654361e5ce77f65a679f2d7a80 (patch) | |
| tree | ee22c8b2069434749c78e080dbd11cde6dc9f057 /subprojects/libvhost-user | |
| parent | 8b8437259ca68e8e2145e0566cf67a29d6ee1816 (diff) | |
libvhost-user: Provide _GNU_SOURCE when compiling outside of QEMU
Then the libvhost-user sources are used by another project, it can not
be guaranteed that _GNU_SOURCE is set by the build system. If it is for
example not set, errors like this show up.
CC libvhost-user.o
libvhost-user.c: In function ‘vu_panic’:
libvhost-user.c:195:9: error: implicit declaration of function ‘vasprintf’; did you mean ‘vsprintf’? [-Werror=implicit-function-declaration]
195 | if (vasprintf(&buf, msg, ap) < 0) {
| ^~~~~~~~~
| vsprintf
The simplest way to allow external complication of libvhost-user.[ch] is
by setting _GNU_SOURCE if it is not already set by the build system.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Message-Id: <be27dcc747a6b5cc6f8ae3f79e0b79171382bcef.1671741278.git.marcel@holtmann.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'subprojects/libvhost-user')
| -rw-r--r-- | subprojects/libvhost-user/libvhost-user.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/subprojects/libvhost-user/libvhost-user.c b/subprojects/libvhost-user/libvhost-user.c index d6ee6e7d91..b55b9e244d 100644 --- a/subprojects/libvhost-user/libvhost-user.c +++ b/subprojects/libvhost-user/libvhost-user.c @@ -13,6 +13,10 @@ * later. See the COPYING file in the top-level directory. */ +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif + /* this code avoids GLib dependency */ #include <stdlib.h> #include <stdio.h> |