Add c build word letter to pass the new compiledb=yes parameter to the engine's build script.

README.md

@@ -321,7 +321,8 @@ Note: to easily run the editor you can use the `editor.sh` or `editor.bat` in th
 
 #### Other
 
-Append `v` to pass the `vsproj=yes` parameter to the build script. This will generate Visual Studio project files.
+Append `v` to pass the `vsproj=yes` parameter to the build script. This will generate Visual Studio project files.\
+Append `c` to pass the `compiledb=yes` parameter to the build script. This is a new feature in 3.x to have this disabled by default to lessen compile times.
 
 #### Postfixes
 

SConstruct

@@ -443,6 +443,10 @@ if len(sys.argv) > 1:
             build_string += 'threads_enabled=yes'
             build_string += ' '
 
+        if 'c' in arg:
+            build_string += 'compiledb=yes'
+            build_string += ' '
+
         target = ' '
 
         if 'E' in arg: