linux: a few quality of life improvements for developing on linux

.clangd

@@ -0,0 +1,2 @@
+CompileFlags:
+  CompilationDatabase: "build"

CMakeLists.txt

@@ -96,6 +96,17 @@ if(MSVC OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     )
 endif()
 
+if(CMAKE_HOST_LINUX AND CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    target_compile_options(steam_api64 PRIVATE
+        $<$<CONFIG:Debug>:/clang:-gdwarf>
+        $<$<CONFIG:Debug>:/clang:-g>
+    )
+
+    target_link_options(steam_api64 PRIVATE
+        $<$<CONFIG:Debug>:/DEBUG:DWARF>
+    )
+endif()
+
 target_link_libraries(steam_api64 PRIVATE
     kernel32 bcrypt user32 gdi32 dwmapi
     d3dcompiler shell32 ws2_32 synchronization