do not save config during precompilation

src/SpmImageTycoon.jl

@@ -96,6 +96,8 @@ griditems_last_saved = 0.  # time of last save of griditems
 griditems_last_changed = 0.  # time of last (potential) change of griditems - we do not keep track of actual changes, but only if certain events happen
 griditems_lock = ReentrantLock()
 
+Precompiling = false
+
 
 """sets keywords"""
 function set_keywords!(ids::Vector{String}, dir_data::String, griditems::Dict{String,SpmGridItem}, mode::String, keywords::Vector{String})
@@ -616,7 +618,9 @@ end
 
 """Start the main GUI and loads images from dir_data (if specified)"""
 function tycoon(dir_data::String=""; return_window::Bool=false, keep_alive::Bool=true)::Union{Window,Nothing}
+    global Precompiling = false
     global exit_tycoon = false
+
     file_logo = path_asset("media/logo_diamond.png")
     w = Window(Dict(
         "webPreferences" => Dict("webSecurity" => false),  # to load local files

src/config.jl

@@ -253,7 +253,7 @@ end
 """saves config to file"""
 function save_config(new_directory::String="")::Nothing
     isdefined(Main, :Test) && return nothing  # we do not save config in test environment
-    isdefined(Main, :Precompiling) && return nothing  # we do not save config during precompilation
+    SpmImageTycoon.Precompiling && return nothing  # we do not save config during precompilation
 
     if !isdir(joinpath(homedir(), config_dir))
         mkpath(joinpath(homedir(), config_dir))