Fix CMakeLists for client binary

JKG keeps the OpenAL32.lib library in a slightly different place from where
OpenJK keeps it.

codemp/CMakeLists.txt

@@ -354,11 +354,11 @@ if(BuildMPEngine)
 			set(MPEngineIncludeDirectories ${MPEngineIncludeDirectories} "${MPDir}/client/OpenAL")
 			# There's a libs/OpenAL32.lib
 			# (mrw) TODO Is this actually required on windows? It is loaded at runtime, should not be linked?
-			find_library(OpenALLibrary NAMES OpenAL32 PATHS ${OpenJKLibDir})
+			find_library(OpenALLibrary NAMES OpenAL32 PATHS ${OpenJKLibDir}/openal)
 			if(NOT OpenALLibrary)
 				message(FATAL_ERROR "UseInternalOpenAL enabled, but lib/OpenAL32.lib not found!")
 			endif(NOT OpenALLibrary)
-			set(MPEngineLibraries ${MPEngineLibraries} ${OpenALLibrary})
+			set(MPEngineLibraries ${MPEngineLibraries} ${OpenALLibrary}/openal)
 		else(UseInternalOpenAL)
 			find_package(OpenAL REQUIRED)
 			set(MPEngineIncludeDirectories ${MPEngineIncludeDirectories} ${OPENAL_INCLUDE_DIR})