fix: Disable warnings for GNU extensions on Clang

[lttng-ust.git] / README.md

diff --git a/README.md b/README.md
index 9553ef151940ad7e307cae587f459621b1fc0a17..286703baa2c4e90501f8d33b1ed825acd230fbf8 100644 (file)
--- a/README.md
+++ b/README.md
@@ -171,6 +171,10 @@ human-readable text log.
     variable `LTTNG_UST_DEBUG` when launching the user application. It
     can also be enabled at build time by compiling LTTng-UST with
     `-DLTTNG_UST_DEBUG`.
+  - `liblttng-ust` abort on critical can be activated by setting the
+    environment variable `LTTNG_UST_ABORT_ON_CRITICAL` when launching the user
+    application. It can also be enabled at build time by compiling LTTng-UST with
+    `-DLTTNG_UST_ABORT_ON_CRITICAL`.
   - The environment variable `LTTNG_UST_REGISTER_TIMEOUT` can be used to
     specify how long the applications should wait for the session
     daemon  _registration done_ command before proceeding to execute the
@@ -190,7 +194,7 @@ human-readable text log.
 
 Since LTTng-UST 2.3, both tracepoints and tracepoint providers can be
 compiled in C++. To compile tracepoint probes in C++, you need
-G++ >= 4.7 or Clang. The C++ compilers need to support C++11.
+G++ >= 4.7 or Clang >= 4.0. The C++ compilers need to support C++11.
 
 
 Contact
@@ -231,7 +235,7 @@ This package contains the following elements:
     JAR library to provide an LTTng-UST logging back-end for Java
     applications using Java Util Logging or Log4j. (Configure with
     `--enable-java-agent-jul` or `--enable-java-agent-log4j` or
-    `--enable-java-agent-all`).
+    `--enable-java-agent-log4j2` or `--enable-java-agent-all`).
   - `liblttng-ust-libc-wrapper`: an example library that can be
     preloaded to instrument some calls to libc (currently `malloc()` and
     `free()`) and to POSIX threads (mutexes currently instrumented) in