Fixed bug with empty string, allowing local fonts to be loaded.

src/dawntools/truetypetool/CMakeLists.txt

@@ -48,13 +48,23 @@ function(tool_truetype target)
     endif()
   endforeach()
 
-  # Check for missing args
-
   set(DEPS "")
   if(DAWN_BUILD_TOOLS)
     set(DEPS truetypetool)
   endif()
 
+  if(DEFINED REGULAR)
+    set(REGULAR "${DAWN_ASSETS_SOURCE_DIR}/${REGULAR}")
+  endif()
+  if(DEFINED BOLD)
+    set(BOLD "${DAWN_ASSETS_SOURCE_DIR}/${BOLD}")
+  endif()
+  if(DEFINED ITALICS)
+    set(ITALICS "${DAWN_ASSETS_SOURCE_DIR}/${ITALICS}")
+  endif()
+  if(DEFINED BOLD_ITALICS)
+    set(BOLD_ITALICS "${DAWN_ASSETS_SOURCE_DIR}/${BOLD_ITALICS}")
+  endif()
 
   add_custom_target(${target}
     COMMAND truetypetool