[PATCH] audit: fix external header definitions for gcc10

[Tony Jones]

Header definitions need to be external when building with -fno-common (which is default in GCC 10).

(.text+0x0): multiple definition of `event_node_list'; ausearch.o (symbol from plugin):(.text+0x0): first defined here
[   60s] /usr/lib64/gcc/x86_64-suse-linux/9/../../../../x86_64-suse-linux/bin/ld: ausearch-time.o (symbol from plugin): in function `lookup_time':

Fixes: ff25054df7ed
---
 src/ausearch-common.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ausearch-common.h b/src/ausearch-common.h
index 6669203..3040547 100644
--- a/src/ausearch-common.h
+++ b/src/ausearch-common.h
@@ -50,7 +50,7 @@ extern pid_t event_pid;
 extern int event_exact_match;
 extern uid_t event_uid, event_euid, event_loginuid;
 extern const char *event_tuid, *event_teuid, *event_tauid;
-slist *event_node_list;
+extern slist *event_node_list;
 extern const char *event_comm;
 extern const char *event_filename;
 extern const char *event_hostname;
--
2.21.0