diff --git a/Makefile.defs b/Makefile.defs
index 99a9e08ec..09207b7b5 100644
--- a/Makefile.defs
+++ b/Makefile.defs
@@ -80,8 +80,7 @@ ifdef KODEBUG
 	export DEBUG
 endif
 
-# CMAKE:=cmake --no-warn-unused-cli
-CMAKE := cmake
+CMAKE := cmake -Wdev --warn-uninitialized
 NINJA := $(or $(NINJA),ninja)
 
 ifneq (,$(or $(VERBOSE),$(V)))
diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index a51feefee..5d8fdba13 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -14,6 +14,8 @@ add_custom_target(download)
 
 # HELPERS. {{{
 
+set(PROJECTS)
+
 function(declare_project DIR)
     cmake_parse_arguments("" "EXCLUDE_FROM_ALL" "SOURCE_DIR" "DEPENDS" ${ARGN})
     get_filename_component(NAME ${DIR} NAME)
@@ -35,6 +37,8 @@ function(declare_project DIR)
     set(${NAME}_DEPENDS ${_DEPENDS} PARENT_SCOPE)
     if(_EXCLUDE_FROM_ALL)
         set(${NAME}_EXCLUDE_FROM_ALL EXCLUDE_FROM_ALL PARENT_SCOPE)
+    else()
+        set(${NAME}_EXCLUDE_FROM_ALL PARENT_SCOPE)
     endif()
     # message(WARNING "
     # ${NAME}: