diff -u ubuntu-app-launch-0.5+15.10.20150817/debian/changelog ubuntu-app-launch-0.5+15.10.20150817/debian/changelog
--- ubuntu-app-launch-0.5+15.10.20150817/debian/changelog
+++ ubuntu-app-launch-0.5+15.10.20150817/debian/changelog
@@ -1,3 +1,10 @@
+ubuntu-app-launch (0.5+15.10.20150817-0ubuntu3) xenial; urgency=high
+
+  * Drop -std=c99, because we really want gnu standards, and thus
+    e.g. access CLOCK_MONOTONIC in lttng on arm64/armhf.
+
+ -- Dimitri John Ledkov <xnox@ubuntu.com>  Thu, 10 Dec 2015 23:23:39 +0000
+
 ubuntu-app-launch (0.5+15.10.20150817-0ubuntu2) xenial; urgency=medium
 
   * Use g_return_val_if_fail to not return void from a non-void function
only in patch2:
unchanged:
--- ubuntu-app-launch-0.5+15.10.20150817.orig/CMakeLists.txt
+++ ubuntu-app-launch-0.5+15.10.20150817/CMakeLists.txt
@@ -37,7 +37,7 @@
 set(ubuntu_app_launch_arch "${UBUNTU_APP_LAUNCH_ARCH}")
 
 # Deprecated needed for g_atexit() in libual
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Werror -Wno-error=unused-function -Wno-error=deprecated-declarations -std=c99")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Werror -Wno-error=unused-function -Wno-error=deprecated-declarations")
 
 enable_testing()