Fix CC pointing to wrong compiler

Author: Antoine Faure

classes/cargo_bin.bbclass

@@ -96,8 +96,10 @@ cargo_bin_do_configure() {
 cargo_bin_do_compile() {
     export TARGET_CC="${WRAPPER_DIR}/cc-wrapper.sh"
     export TARGET_CXX="${WRAPPER_DIR}/cxx-wrapper.sh"
-    export CC="${WRAPPER_DIR}/cc-native-wrapper.sh"
-    export CXX="${WRAPPER_DIR}/cxx-native-wrapper.sh"
+    export CC="${WRAPPER_DIR}/cc-wrapper.sh"
+    export CXX="${WRAPPER_DIR}/cxx-wrapper.sh"
+    export BUILD_CC="${WRAPPER_DIR}/cc-native-wrapper.sh"
+    export BUILD_CXX="${WRAPPER_DIR}/cxx-native-wrapper.sh"
     export TARGET_LD="${WRAPPER_DIR}/linker-wrapper.sh"
     export LD="${WRAPPER_DIR}/linker-native-wrapper.sh"
     export PKG_CONFIG_ALLOW_CROSS="1"