deps: warn that wx-config can't be moved into another location

CMakeLists.txt

@@ -44,11 +44,12 @@ endif ()
 
 # CMAKE_PREFIX_PATH is used to point CMake to the remaining dependencies (Boost, TBB, ...)
 # We pick it from environment if it is not defined in another way
-if(NOT DEFINED CMAKE_PREFIX_PATH)
-	if(DEFINED ENV{CMAKE_PREFIX_PATH})
+if (NOT DEFINED CMAKE_PREFIX_PATH)
+	if (DEFINED ENV{CMAKE_PREFIX_PATH})
 		set(CMAKE_PREFIX_PATH "$ENV{CMAKE_PREFIX_PATH}")
-	endif()
-endif()
+	endif ()
+endif ()
+message(STATUS "CMAKE_PREFIX_PATH: ${CMAKE_PREFIX_PATH}")
 
 # Add our own cmake module path.
 list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/modules/)

deps/CMakeLists.txt

@@ -15,6 +15,9 @@
 # On Windows, architecture (64 vs 32 bits) is judged based on the compiler variant.
 # To build dependencies for either 64 or 32 bit OS, use the respective compiler command line.
 #
+# WARNING: On UNIX platforms wxWidgets hardcode the destdir path into its `wx-conffig` utility,
+# therefore, unfortunatelly, the installation cannot be copied/moved elsewhere without re-installing wxWidgets.
+#
 
 project(Slic3r-deps)
 cmake_minimum_required(VERSION 3.2)