pre gcc v5 support and allow building without dbengine (#14239)

* allow spinlock to be compiled with gcc 4.9

* allow compiling without dbengine

3 files changed, 5 insertions, 3 deletions

diff --git a/libnetdata/locks/locks.c b/libnetdata/locks/locks.c
index 0a9198119b..e73456d706 100644
--- a/libnetdata/locks/locks.c
+++ b/libnetdata/locks/locks.c
@@ -279,7 +279,7 @@ int __netdata_rwlock_trywrlock(netdata_rwlock_t *rwlock) {
 // https://www.youtube.com/watch?v=rmGJc9PXpuE&t=41s
 
 void netdata_spinlock_init(SPINLOCK *spinlock) {
-    *spinlock = NETDATA_SPINLOCK_INITIALIZER;
+    memset(spinlock, 0, sizeof(SPINLOCK));
 }
 
 void netdata_spinlock_lock(SPINLOCK *spinlock) {
diff --git a/libnetdata/locks/locks.h b/libnetdata/locks/locks.h
index a04cfdc0f9..34cdb13e7e 100644
--- a/libnetdata/locks/locks.h
+++ b/libnetdata/locks/locks.h
@@ -16,7 +16,9 @@ typedef struct netdata_spinlock {
     pid_t locker_pid;
 #endif
 } SPINLOCK;
-#define NETDATA_SPINLOCK_INITIALIZER (SPINLOCK) { .locked = false }
+
+#define NETDATA_SPINLOCK_INITIALIZER \
+    { .locked = false }
 
 void netdata_spinlock_init(SPINLOCK *spinlock);
 void netdata_spinlock_lock(SPINLOCK *spinlock);
diff --git a/libnetdata/worker_utilization/worker_utilization.c b/libnetdata/worker_utilization/worker_utilization.c
index afaff209b5..b0dcf034dd 100644
--- a/libnetdata/worker_utilization/worker_utilization.c
+++ b/libnetdata/worker_utilization/worker_utilization.c
@@ -83,7 +83,7 @@ void worker_register(const char *name) {
     struct workers_workname *workname = *PValue;
     if(!workname) {
         workname = mallocz(sizeof(struct workers_workname));
-        workname->spinlock = NETDATA_SPINLOCK_INITIALIZER;
+        netdata_spinlock_init(&workname->spinlock);
         workname->base = NULL;
         *PValue = workname;
     }