updated functions.sh

.bash.d/functions.sh

@@ -17,6 +17,11 @@
 #                  B a s h   G e n e r a l   F u n c t i o n s
 # ============================================================================ #
 
+srcdir="${srcdir:-$(dirname "${BASH_SOURCE[0]}")/..}"
+
+# shellcheck disable=SC1090
+. "$srcdir/.bash.d/os_detection.sh"
+
 # Enables colourized return codes in prompt_func
 # better leave it as the same as already set. This way a reload of bashrc doesn't change the mode
 # could do retmode=${retmode:-off} but this is unnecessary overhead