MINOR: vars: replace static functions with global ones
The OpenTracing filter uses several internal HAProxy functions to work
with variables and therefore requires two static local HAProxy functions,
var_accounting_diff() and var_clear(), to be declared global.
In fact, the var_clear() function was not originally defined as static,
but it lacked a declaration.
diff --git a/include/haproxy/vars.h b/include/haproxy/vars.h
index 1d0a47a..aeb218a 100644
--- a/include/haproxy/vars.h
+++ b/include/haproxy/vars.h
@@ -28,6 +28,8 @@
#include <haproxy/vars-t.h>
void vars_init(struct vars *vars, enum vars_scope scope);
+void var_accounting_diff(struct vars *vars, struct session *sess, struct stream *strm, int size);
+unsigned int var_clear(struct var *var);
void vars_prune(struct vars *vars, struct session *sess, struct stream *strm);
void vars_prune_per_sess(struct vars *vars);
int vars_get_by_name(const char *name, size_t len, struct sample *smp);
diff --git a/src/vars.c b/src/vars.c
index b847b5d..e328999 100644
--- a/src/vars.c
+++ b/src/vars.c
@@ -65,7 +65,7 @@
/* This function adds or remove memory size from the accounting. The inner
* pointers may be null when setting the outer ones only.
*/
-static void var_accounting_diff(struct vars *vars, struct session *sess, struct stream *strm, int size)
+void var_accounting_diff(struct vars *vars, struct session *sess, struct stream *strm, int size)
{
switch (vars->scope) {
case SCOPE_REQ: