build: fix build with -DENABLE_OPENAL=TRUE

Followup on 8ced18c2 (build: make OpenAL-Soft optional again,
2025-05-22), put the sources for OpenAL support in the right place in
the CMake file for the build to work.

Signed-off-by: Rafael Kitover <rkitover@gmail.com>

src/wx/CMakeLists.txt

@@ -186,17 +186,6 @@ if(CMAKE_BUILD_TYPE STREQUAL "Debug" AND CMAKE_TOOLCHAIN_FILE MATCHES "vcpkg")
     set(wxWidgets_LIB_DIR "${wxWidgets_LIB_DIR}" CACHE INTERNAL "wxWidgets library directory" FORCE)
 endif()
 
-if(ENABLE_OPENAL)
-    find_package(OpenAL REQUIRED)
-
-    target_sources(visualboyadvance-m PRIVATE
-        audio/internal/openal.cpp
-        audio/internal/openal.h
-    )
-
-    target_compile_definitions(visualboyadvance-m PRIVATE VBAM_ENABLE_OPENAL)
-endif()
-
 # Workaround of static liblzma not being found on MSYS2.
 if(VBAM_STATIC AND MSYS)
     unset(cleaned_up_wx_libs)
@@ -410,6 +399,18 @@ else()
     target_include_directories(visualboyadvance-m PRIVATE ${SDL2_INCLUDE_DIRS})
 endif()
 
+if(ENABLE_OPENAL)
+    find_package(OpenAL REQUIRED)
+
+    target_sources(visualboyadvance-m PRIVATE
+        audio/internal/openal.cpp
+        audio/internal/openal.h
+    )
+
+    target_compile_definitions(visualboyadvance-m PRIVATE VBAM_ENABLE_OPENAL)
+endif()
+
+
 target_link_libraries(
     visualboyadvance-m
     vbam-components-draw-text