MINOR: threads: Use __decl_hathreads to declare locks
This macro should be used to declare variables or struct members depending on
the USE_THREAD compile option. It avoids the encapsulation of such declarations
between #ifdef/#endif. It is used to declare all lock variables.
diff --git a/src/vars.c b/src/vars.c
index fef3685..2192fa5 100644
--- a/src/vars.c
+++ b/src/vars.c
@@ -32,9 +32,7 @@
static unsigned int var_reqres_limit = 0;
-#ifdef USE_THREAD
-HA_RWLOCK_T var_names_rwlock;
-#endif
+__decl_hathreads(HA_RWLOCK_T var_names_rwlock);
/* This function adds or remove memory size from the accounting. The inner
* pointers may be null when setting the outer ones only.