add UTRACE_SUPPORT build option

we can now build preload-seccomp, ujail, utrace separately

Signed-off-by: Etienne CHAMPETIER <champetier.etienne@gmail.com>

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6af17a3..805e2ed 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -84,7 +84,9 @@ TARGET_LINK_LIBRARIES(ujail ubox)
 INSTALL(TARGETS ujail
        RUNTIME DESTINATION sbin
 )
+endif()
 
+IF(UTRACE_SUPPORT)
 ADD_EXECUTABLE(utrace trace/trace.c)
 TARGET_LINK_LIBRARIES(utrace ubox ${json} blobmsg_json)
 INSTALL(TARGETS utrace