BUILD: trace: include tools.h
If the TRACE option is used when compiling the haproxy source,
the following error occurs on debian 9.13:
src/calltrace.o: In function `make_line':
.../src/calltrace.c:204: undefined reference to `rdtsc'
src/calltrace.o: In function `calltrace':
.../src/calltrace.c:277: undefined reference to `rdtsc'
collect2: error: ld returned 1 exit status
Makefile:866: recipe for target 'haproxy' failed
diff --git a/src/calltrace.c b/src/calltrace.c
index 2208ca1..551e8a0 100644
--- a/src/calltrace.c
+++ b/src/calltrace.c
@@ -49,6 +49,7 @@
#include <string.h>
#include <haproxy/api.h>
#include <haproxy/time.h>
+#include <haproxy/tools.h>
static FILE *log;
static int level;