gcc-wrapper: warn on invalid path names.
gcc-wrapper: warn on invalid path names.

Change-Id: Ib057d519485da3a454bad579675ae718c42155eb

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core