Build: Don't link with glad if GL is disabled

dep/CMakeLists.txt

@@ -1,6 +1,5 @@
 add_subdirectory(fmt)
 add_subdirectory(gsl)
-add_subdirectory(glad)
 add_subdirectory(stb)
 add_subdirectory(zlib)
 add_subdirectory(zstd)
@@ -22,6 +21,10 @@ if(ENABLE_CUBEB)
   add_subdirectory(cubeb)
 endif()
 
+if(ENABLE_OPENGL)
+  add_subdirectory(glad)
+endif()
+
 if(ENABLE_DISCORD_PRESENCE)
   add_subdirectory(discord-rpc)
 endif()

src/duckstation-nogui/CMakeLists.txt

@@ -4,7 +4,7 @@ add_executable(duckstation-nogui
   nogui_platform.h
 )
 
-target_link_libraries(duckstation-nogui PRIVATE core util common imgui glad scmversion)
+target_link_libraries(duckstation-nogui PRIVATE core util common imgui scmversion)
 
 if(WIN32)
   message(STATUS "Building Win32 NoGUI Platform.")

src/duckstation-qt/CMakeLists.txt

@@ -171,7 +171,7 @@ qt6_add_translation(QM_FILES ${TS_FILES})
 
 add_executable(duckstation-qt ${SRCS} ${QM_FILES})
 target_include_directories(duckstation-qt PRIVATE "${Qt6Gui_PRIVATE_INCLUDE_DIRS}" "${CMAKE_CURRENT_SOURCE_DIR}")
-target_link_libraries(duckstation-qt PRIVATE core common imgui glad minizip scmversion Qt6::Core Qt6::Gui Qt6::Widgets Qt6::Network)
+target_link_libraries(duckstation-qt PRIVATE core common imgui minizip scmversion Qt6::Core Qt6::Gui Qt6::Widgets Qt6::Network)
 
 if(WIN32)
   # We want a Windows subsystem application not console.