[Qemu-devel] [PATCH 2/2] qemu-ga: Fix missing environ declaration

[Michael Roth <mdroth@linux.vnet.ibm.com>]

From: Luiz Capitulino <lcapitulino@redhat.com>

Commit 3674838cd05268954bb6473239cd7f700a79bf0f uses the environ global
variable, but is relying on environ to be declared somewhere else.

This worked for me because on F16 environ is declared in <unistd.h>, but
that doesn't happen in OpenBSD for example, causing a build failure.

This commit fixes the build error by declaring environ if it hasn't
being declared yet.

Also fixes a build warning due to a missing <sys/wait.h> include.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
 qga/commands-posix.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 7664be1..dab3bf9 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -14,12 +14,17 @@
 #include <glib.h>
 #include <sys/types.h>
 #include <sys/ioctl.h>
+#include <sys/wait.h>
 #include "qga/guest-agent-core.h"
 #include "qga-qmp-commands.h"
 #include "qerror.h"
 #include "qemu-queue.h"
 #include "host-utils.h"
 
+#ifndef CONFIG_HAS_ENVIRON
+extern char **environ;
+#endif
+
 #if defined(__linux__)
 #include <mntent.h>
 #include <linux/fs.h>
@@ -27,7 +32,6 @@
 #include <arpa/inet.h>
 #include <sys/socket.h>
 #include <net/if.h>
-#include <sys/wait.h>
 
 #if defined(__linux__) && defined(FIFREEZE)
 #define CONFIG_FSFREEZE
-- 
1.7.4.1