fix mingw build of xpdf
fix mingw build of xpdf

Change-Id: Ic6cbe741b9d8ec1081833039f3982eb68a10b38b

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