Can't set compile FLAG using set using Yocto build

If set, then these are the flags that are used by bitbake
without append its own flags which provides toolchain variables
environment mandatory to correctly build for another target.

Change-Id: Id5ddfc11c3d7d2e1eee418989aabaa73a933a41a
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

diff --git a/conf.d/cmake/config.cmake b/conf.d/cmake/config.cmake
index 7b335e3..05f8468 100644 (file)
--- a/conf.d/cmake/config.cmake
+++ b/conf.d/cmake/config.cmake
@@ -70,10 +70,8 @@ set (PKG_REQUIRED_LIST
 # -----------------------------
 add_compile_options(-D_REENTRANT)
 add_compile_options(-DPB_FIELD_16BIT)
-
-# LANG Specific compile flags set for all build types
-set(CMAKE_C_FLAGS "")
-set(CMAKE_CXX_FLAGS "-std=c++11 -pthread")
+add_compile_options($<$<COMPILE_LANGUAGE:CXX>:-std=c++11>)
+add_compile_options($<$<COMPILE_LANGUAGE:CXX>:-pthread>)
 
 # Print a helper message when every thing is finished
 # ----------------------------------------------------