Try to fix server-only build ... now non-server build is broken :(

CMakeLists.txt

@@ -113,6 +113,7 @@ if(WIN32)
     set(ENV{OPENALDIR} ${PROJECT_SOURCE_DIR}/${DEPENDENCIES})
     add_definitions(-D_IRR_STATIC_LIB_)
     add_definitions(-DNO_IRR_COMPILE_WITH_X11_)
+    include_directories(${PROJECT_SOURCE_DIR}/${DEPENDENCIES}/include)
 endif()
 
 if(USE_GLES2)

lib/irrlicht/CMakeLists.txt

@@ -1,10 +1,6 @@
 # CMakeLists.txt for Irrlicht in STK
-find_package(PNG REQUIRED)
-find_package(JPEG REQUIRED)
 
 include_directories("${CMAKE_CURRENT_SOURCE_DIR}/include/"
-                    "${JPEG_INCLUDE_DIR}"
-                    "${PNG_INCLUDE_DIRS}"
                     "${ZLIB_INCLUDE_DIR}")
 
 if(MSVC OR APPLE)
@@ -13,6 +9,11 @@ if(MSVC OR APPLE)
 endif()
 
 if(NOT SERVER_ONLY)
+    find_package(PNG REQUIRED)
+    find_package(JPEG REQUIRED)
+    include_directories("${JPEG_INCLUDE_DIR}"
+                        "${PNG_INCLUDE_DIRS}")
+
     if(NOT USE_GLES2)
         find_package(OpenGL REQUIRED)
         include_directories(${OPENGL_INCLUDE_DIR})