Enabled pch in CMake.

No need to remove old pch includes.

CMakeLists.txt

@@ -51,7 +51,6 @@ set(SOURCE_FILES
         SpaceCadetPinball/partman.h
         SpaceCadetPinball/pb.cpp
         SpaceCadetPinball/pb.h
-        SpaceCadetPinball/pch.cpp
         SpaceCadetPinball/pch.h
         SpaceCadetPinball/pinball.cpp
         SpaceCadetPinball/pinball.h
@@ -168,6 +167,22 @@ set(SOURCE_FILES
 
 add_executable(SpaceCadetPinball ${SOURCE_FILES})
 
+# Skip pch on foreign code
+set_source_files_properties(
+        SpaceCadetPinball/imgui.cpp
+        SpaceCadetPinball/imgui_sdl.cpp
+        SpaceCadetPinball/imgui_draw.cpp
+        SpaceCadetPinball/imgui_widgets.cpp
+        SpaceCadetPinball/imgui_tables.cpp
+        SpaceCadetPinball/imgui_demo.cpp
+        SpaceCadetPinball/imgui_impl_sdl.cpp
+        PROPERTIES SKIP_PRECOMPILE_HEADERS 1
+)
+target_precompile_headers(SpaceCadetPinball
+  PUBLIC
+    SpaceCadetPinball/pch.h
+)
+
 target_link_libraries(SpaceCadetPinball ${SDL2_LIBRARY} ${SDL2_MIXER_LIBRARY})
 
 # On Windows, copy DLL to output

SpaceCadetPinball/pch.cpp

@@ -1,5 +0,0 @@
-// pch.cpp: source file corresponding to pre-compiled header; necessary for compilation to succeed
-
-#include "pch.h"
-
-// In general, ignore this file, but keep it around if you are using pre-compiled headers.