Fixed non-steam build, because I broke it :D

CMakeLists.txt

@@ -150,6 +150,14 @@ else (NOT MSVC)
 	set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D__FNAME__=__FILE__")
 endif (NOT MSVC)
 
+if (STEAM)
+	set(STEAM_SOURCES
+		src/steam/steamworks_api_wrapper
+		)
+else ()
+	set(STEAM_SOURCES "")
+endif ()
+
 # PROGRAMS:
 add_executable(breakhack
 	src/main
@@ -201,7 +209,7 @@ add_executable(breakhack
 	src/object
 	src/gui_util
 	src/tooltip
-	src/steam/steamworks_api_wrapper
+	${STEAM_SOURCES}
 	)
 
 # Sqlite has some warnings that I we don't need to see

src/steam/steamworks_api_wrapper.c

@@ -3,6 +3,7 @@
 #include "steamworks_c_wrapper.h"
 #include "../util.h"
 #include "../defines.h"
+#include "../gui.h"
 
 static Achievement g_Achievements[] = {
 	_ACH_ID(BAD_DOG, "Bad Dog"),