Fix c99 compatibility: use __typeof__ instead of typeof in public headers

[lttng-ust.git] / README

diff --git a/README b/README
index 8193c6603837940ffc2cade120ef4dc867b638fe..52aebd8940c7cf01770f949beb944f2e63b54a1a 100644 (file)
--- a/README
+++ b/README
@@ -113,6 +113,10 @@ ENVIRONMENT VARIABLES:
     recommended for applications with time constraints on the process
     startup time.
 
+  - The compilation flag "-DLTTNG_UST_DEBUG_VALGRIND" should be enabled
+    at build time to allow liblttng-ust to be used with valgrind
+    (side-effect: disables per-cpu buffering).
+
 
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